WO2016101460A1 - 传输指示信息的方法和装置 - Google Patents
传输指示信息的方法和装置 Download PDFInfo
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Definitions
- the present invention relates to the field of communications, and in particular, to a method and apparatus for transmitting indication information in the field of communications.
- the Sparse Code Multiple Access (SCMA) technology is a typical non-orthogonal multiple access and transmission technology.
- SCMA technology can also be called other names in the communication field.
- M is an integer not less than 1
- N is an integer not less than 1
- M is an integer not less than 1
- M is an integer not less than 1
- N is an integer not less than 1
- SCMA technology can effectively improve network capacity, including the number of users accessible to the system and spectrum efficiency. Therefore, as an important non-orthogonal access technology, SCMA technology has attracted more and more attention and become an important alternative access technology for the evolution of wireless cellular networks in the future.
- a terminal device when a terminal device receives a downlink data stream using a non-orthogonal multiple access technology, the terminal device needs to know that the downlink data stream is used.
- the codebook, and the selection and distribution of the codebook is usually completed by the network device, and the terminal device is not directly involved in the process. Therefore, after the network device allocates a codebook for the data stream to be received by the terminal device, how to notify the terminal device to the allocated codebook is a technical problem to be solved.
- the embodiments of the present invention provide a method and apparatus for transmitting indication information to solve the problem that a network device indicates a codebook to a terminal device in a non-orthogonal multiple access system.
- a method for transmitting indication information comprising: determining, in one or more codebooks, a first codebook used for transmitting a first downlink data stream to a terminal device, where the codebook is composed of two Or two or more codewords, the codeword being a multi-dimensional complex vector for indicating a mapping relationship between data and at least two modulation symbols, the at least two modulation symbols including at least one zero modulation symbol and at least one non-zero a modulation symbol; determining one or more second codebooks used for transmitting the second downlink data stream, where the second downlink data stream is carried on the time-frequency resource used by the first downlink data stream except the first One or more downlink data streams other than the downlink data stream; determining codebook indication information for indicating the first codebook and the one or more second codebooks; transmitting the codebook indication information to the terminal device .
- the determining, by the codebook indication information, the first codebook and the one or more second codebooks, a first codebook set to which a codebook belongs, one or more second codebook sets to which the one or more second codebooks belong, and the first codebook set and the one or more second codebook sets An associated first codebook cluster, wherein each codebook cluster includes at least one codebook set, each codebook set includes at least one codebook, the codebook cluster satisfying codewords in the same codebook cluster The total number of modulation symbols is the same, and the codebook set satisfies any two codebooks in the same codebook set.
- the modulation symbols of all codewords are the same as the position of the zero modulation symbol, or the codebook set satisfies the codewords in the same codebook set.
- the total number of modulation symbols is the same, and the codebooks in the same codebook set have the same total number of codewords;
- the codebook indication information is determined, and the codebook indication information includes the first codebook cluster information and the first codebook set information.
- first indication information wherein the first codebook The cluster information is used to indicate the first codebook cluster, the first codebook information is used to indicate the first codebook set in the first codebook cluster, and the first indication information is used to indicate the first codebook. Concentrating the first codebook, the first indication information is further used to indicate the one or more second codebook sets in the first codebook cluster, and the one of the one or more second codebook sets Or multiple second codebooks.
- the first indication information includes: a first codebook information, a second codebook set information, and a second codebook information, where the first codebook information is used to indicate the first codebook set.
- a codebook the second codebook information is used to indicate the one or more second codebook sets in the first codebook cluster, and the second codebook information is used to indicate the one or more second codes.
- the one or more second codebooks in the set is not limited to: a first codebook information, a second codebook set information, and a second codebook information, where the first codebook information is used to indicate the first codebook set.
- a codebook the second codebook information is used to indicate the one or more second codebook sets in the first codebook cluster
- the second codebook information is used to indicate the one or more second codes.
- the one or more second codebooks in the set is
- the first indication information includes one-to-one correspondence with each codebook set in the first codebook cluster.
- M group of bit string information each set of bit string information is used to indicate whether the corresponding codebook set belongs to the first codebook set or the one or more second codebook sets, corresponding to each group of bit string information
- the group of bit string information is further used to indicate the first codebook or the one or more in the corresponding codebook set.
- M is the number of codebook sets included in the first codebook cluster.
- the first indication information includes the first codebook and the one or more second The modulation order information of the codebook, wherein the modulation order of each codebook in each of the codebook sets is different.
- the determining, the information indicating the first codebook and the codebook indication information of the one or more second codebooks includes: determining the first a first feature sequence to which a codebook belongs, one or more second feature sequences to which the one or more second codebooks belong, and a first to which the first feature sequence and the one or more second feature sequences belong An identity matrix, wherein each feature matrix is composed of two or more feature sequences, each of the feature sequences corresponding to one or more codebooks, the feature sequence consisting of zero elements and 1 element, the zero element representation
- the modulation symbols of all the codewords in the corresponding codebook at the corresponding position of the zero element are all zero modulation symbols, and the 1 element indicates that all the codewords in the corresponding codebook are not all modulated symbols at corresponding positions of the 1 element.
- the codebook indication information including first feature matrix information, first feature sequence information, and second indication information, wherein the first feature moment The information is used to indicate the first feature matrix, the first feature sequence information is used to indicate the first feature sequence in the first feature matrix, and the second indication information is used to indicate one or more corresponding to the first feature sequence.
- the first codebook in the codebook, the second indicator information is further used to indicate the one or more second feature sequences in the first feature matrix, and a corresponding one of the one or more second feature sequences Or the one or more second codebooks in the plurality of codebooks.
- the second indication information includes: third codebook information, second feature sequence information, and fourth Codebook information, where the third codebook information is used to indicate the first codebook in one or more codebooks corresponding to the first feature sequence, and the second feature sequence information is used to indicate the first feature matrix The one or more second feature sequences in the fourth codebook information, where the fourth codebook information is used to indicate the one or more second codebooks in the one or more codebooks corresponding to the one or more second feature sequences.
- the second indication information includes a M that is in one-to-one correspondence with each feature sequence in the first feature matrix.
- Group bit string information each set of bit string information is used to indicate whether the corresponding feature sequence belongs to the first feature sequence or the one or more second feature sequences, and the feature sequence corresponding to the each group of bit string information belongs to the first
- Each of the set of bit string information is further used to indicate the first codebook or the one or more of the one or more codebooks corresponding to the corresponding feature sequence, when the feature sequence or the one or more second feature sequences Second codebooks, where M is the number of feature sequences included in the first feature matrix.
- the second indication information includes the first codebook and the one or more second The modulation order information of the codebook, wherein each of the one or more codebooks corresponding to the feature sequence has different modulation orders.
- the centralized codeword has the same total number of modulation symbols, and the codebooks in the same codebook set have the same total number of codewords; the codebook indication information is determined, and the codebook indication information includes the first mode information and the first terminal device. Sorting information, wherein the first mode information is used to indicate the first mode, and the first terminal device ranking information is used to indicate the ordering of the terminal device in the plurality of terminal devices.
- the modulation symbols of the word at the corresponding position of the 1 element are not all zero modulation symbols or all non-zero modulation symbols; each codebook set includes at least one codebook, and the codebook set satisfies the modulation of the codewords in the same codebook set.
- the total number of symbols is the same, and the codebooks in the same codebook set have the same total number of codewords; wherein each codebook in the codebook set respectively corresponds to each feature sequence in the feature matrix; determining the codebook Instructing information, the codebook indication information includes second mode information, second terminal device ranking information, and third codebook set information, wherein the second mode information is used to indicate the second mode
- the second terminal device ranking information is used to indicate the ordering of the terminal device in the plurality of terminal devices
- the third codebook set information is used to indicate a code corresponding to the second feature matrix respectively used by each terminal device This episode.
- the And sending the codebook indication information including: sending, to the terminal device, a downlink scheduling message, a dedicated high-layer control signaling, or a system broadcast message, where the downlink scheduling message, the dedicated high-layer control signaling, and the system broadcast message include the codebook indication information .
- the dedicated high layer control signaling includes a radio resource control RRC connection setup message and an RRC connection reconfiguration message.
- the codebook indication The information is bit string information.
- the codebook is Sparse code multiple access to SCMA codebook.
- the code code includes a number of zero modulation symbols in the codeword that is greater than or equal to a non-zero modulation symbol. quantity.
- a method for transmitting indication information comprising: receiving a network design The codebook indication information to be sent, the codebook indication information is used to indicate that the network device sends the first codebook used by the first downlink data stream, and the network device sends one or more used by the second downlink data stream.
- the code The present invention is composed of two or more code words, which are multi-dimensional complex vectors, used to represent a mapping relationship between data and at least two modulation symbols, the at least two modulation symbols including at least one zero modulation symbol and At least one non-zero modulation symbol; determining the first codebook and the one or more second codebooks according to the codebook indication information; and the network device according to the first codebook and the one or more second codebooks The first downlink data stream that is sent is decoded.
- the codebook indication information includes a first codebook cluster information, a first codebook set information, and first indication information, where the first code The first indicator set information is used to indicate the first codebook set in the first codebook cluster, and the first indication information is used to indicate the first codebook set.
- first indication information is further used to indicate one or more second codebook sets in the first codebook cluster, and the one or more of the one or more second codebook sets a second codebook, where the determining the first codebook and the one or more second codebooks according to the codebook indication information, including: according to the first codebook cluster information, the first codebook set information, and Determining, by the first indication information, the first codebook in the first codebook set included in the first codebook cluster, and the one of the one or more second codebook sets included in the first codebook cluster Or a plurality of second codebooks, wherein each codebook cluster includes at least one codebook set, and each of the codebook set packets At least one codebook, the codebook cluster satisfies that the codewords in the same codebook cluster have the same total number of modulation symbols, and the codebook set satisfies any two codebooks in the same codebook set, and the modulation symbols for all the codewords are The positions of the zero modulation symbols are the same, or
- the first indication information includes: first codebook information, second codebook set information, and second code The information, where the first codebook information is used to indicate the first codebook in the first codebook set, and the second codebook set information is used to indicate the one or more in the first codebook cluster
- the second codebook set is used to indicate the one or more second codebooks in the one or more second codebook sets.
- the first indication information includes a one-to-one correspondence with each codebook set in the first codebook cluster of M group bit string information, each set of bit string information is used to indicate whether the corresponding codebook set belongs to the first codebook set or the one or more second codebook sets, and the code corresponding to the each group of bit string information
- the set of bit string information is further used to indicate the first codebook or the one or more firsts in the corresponding codebook set.
- the first indication information includes the first codebook and the one or more second The modulation order information of the codebook, wherein the modulation order of each codebook in each of the codebook sets is different.
- the codebook indication information includes first feature matrix information, first feature sequence information, and second indication information, where the first feature matrix information For indicating a first feature matrix, the first feature sequence information is used to indicate a first feature sequence in the first feature matrix, and the second indication information is used to indicate one or more codebooks corresponding to the first feature sequence.
- the first codebook, the second indication information is further used to indicate one or more second feature sequences in the first feature matrix, and one or more codes corresponding to the one or more second feature sequences
- the one or more second codebooks wherein the determining the first codebook and the one or more second codebooks according to the codebook indication information comprises: according to the first feature matrix information, Determining, by the first feature sequence information and the second indication information, the first codebook in the one or more codebooks corresponding to the first feature sequence included in the first feature matrix, and the first code matrix includes the first codebook One Or the one or more second codebooks of the plurality of second feature sequences, wherein each feature matrix is composed of two or more feature sequences, each of the feature sequences corresponding to one or more of the codebooks
- the feature sequence is composed of a zero element and an element, and the zero element indicates that all codewords in the corresponding codebook have zero modulation symbols at corresponding positions of the zero element, and the one element represents the corresponding codebook.
- the second indication information includes: third codebook information, second feature sequence information, and fourth codebook Information, where the third codebook information is used to indicate the first codebook in the one or more codebooks corresponding to the first feature sequence, where the second feature sequence information is used to indicate the first feature matrix And the one or more second feature sequences, the fourth codebook information is used to indicate the one or more second codebooks in the one or more codebooks corresponding to the one or more second feature sequences.
- the second indication information includes M sets of bit string information corresponding to each feature sequence in the first feature matrix, and each set of bit string information is used to indicate whether the corresponding feature sequence belongs to the first feature. a sequence or the one or more second feature sequences, wherein the set of bit string information is further used when the feature sequence corresponding to the each group of bit string information belongs to the first feature sequence or the one or more second feature sequences And indicating the first codebook or the one or more second codebooks in the one or more codebooks corresponding to the corresponding feature sequence, where M is the number of feature sequences included in the first feature matrix.
- the second indication information includes the first codebook and the one or more second The modulation order information of the codebook, wherein each of the one or more codebooks corresponding to the feature sequence has different modulation orders.
- the codebook indication information includes first mode information and first terminal device ranking information, where the first mode information is used to indicate the first mode
- the first mode is used to indicate that the first codebook and the third codebook set to which the one or more second codebooks belong, and the codebook in the third codebook set are in the first data stream and the first
- the first terminal device ranking information is used to indicate the ordering of the terminal device in the plurality of terminal devices; wherein the first determining the first information according to the codebook indication information
- the codebook and the one or more second codebooks include: determining, according to the first mode information and the first terminal device ranking information, in the third codebook set indicated by the first mode, The first codebook corresponding to the device ordering information, and the one or more second codebooks, wherein each codebook set includes at least one codebook, and the codebook set satisfies the codewords in the same codebook set. Total number of modulation symbols Same, the same codebook and a codebook set number of codeword
- the codebook indication information includes second mode information, second terminal device ordering information, and third codebook set information, where the second mode The information is used to indicate a second mode, where the second mode is used to indicate that the first codebook and the second feature matrix to which the one or more second codebooks belong, and the feature sequence in the second feature matrix are in the The first data stream and the allocation information in the plurality of terminal devices to which the second data stream belongs, the second terminal device ranking information is used to indicate the ordering of the terminal device in the plurality of terminal devices, the third codebook set The information is used to indicate a codebook set corresponding to the second feature matrix used by each of the plurality of terminal devices, where the first codebook and the one or more are determined according to the codebook indication information a second codebook, comprising: according to the second mode information, the second terminal device row And the third codebook set information, in the one or more codebook sets corresponding to the second feature matrix indicated by the second mode, determining the first code
- the receiving network device sends
- the codebook indication information includes: receiving a downlink scheduling message, a dedicated high-layer control signaling, or a system broadcast message sent by the network device, where the downlink scheduling message, the dedicated high-layer control signaling, and the system broadcast message include the codebook indication information .
- the dedicated high layer control signaling includes a radio resource control RRC connection setup message and an RRC connection reconfiguration message.
- the codebook indication The information is bit string information.
- the codebook is Sparse code multiple access to SCMA codebook.
- the code code includes a number of zero modulation symbols in the codeword that is greater than or equal to a non-zero modulation symbol. quantity.
- a third aspect provides an apparatus for transmitting indication information, where the apparatus includes: a first determining module, configured to determine, in one or more codebooks, a first codebook used to send a first downlink data stream to a terminal device
- the codebook is composed of two or more codewords, which are multi-dimensional complex vectors for indicating a mapping relationship between data and at least two modulation symbols, the at least two modulation symbols including At least one zero modulation symbol and at least one non-zero modulation symbol;
- a second determining module configured to determine one or more second codebooks used for transmitting the second downlink data stream, where the second downlink data stream is the first One or more downlink data streams that are carried on the time-frequency resource used by the downlink data stream, except for the first downlink data stream, and a third determining module, configured to determine, by the first determining module, The first codebook and the codebook indication information of the one or more second codebooks determined by the second determining module, and the sending module, configured to send, to the terminal device, the code
- the third determining module includes: a first determining unit, configured to determine a first codebook set to which the first codebook belongs, the one or One or more second codebook sets to which the plurality of second codebooks belong, and the first codebook set and the first codebook cluster to which the one or more second codebook sets belong, wherein each codebook The cluster includes at least one codebook set, each of the codebook sets includes at least one codebook, the codebook clusters satisfying that the codewords in the same codebook cluster have the same total number of modulation symbols, and the codebook set satisfies the same codebook Concentrating any two codebooks, the modulation symbols of all codewords are the same as the position of the zero modulation symbol, or the codebook set satisfies the same number of modulation symbols in the same codebook set, and the code in the same codebook set
- the second determining unit is configured to determine the codebook indication information, where the codebook indication information includes the first codebook cluster information,
- the first indication information that is determined by the second determining unit includes: first codebook information, second code
- the first set of codebook information is used to indicate the first codebook in the first codebook set
- the second codebook set information is used to indicate the first codebook cluster
- the one or more second codebooks in the second codebook information, the second codebook information being used to indicate the one or more second codebooks in the one or more second codebook sets.
- the first indication information that is determined by the second determining unit is included in each of the first codebook clusters
- Each of the set of bit string information is used to indicate whether the corresponding codebook set belongs to the first codebook set or the one or more second codebook sets, and
- Each group of bits When the corresponding codebook set of the string information belongs to the first codebook set or the one or more second codebook sets, the each group of bit string information is further used to indicate the first codebook or the corresponding codebook set.
- the first indication information that is determined by the second determining unit includes the first codebook and Modulation order information of the one or more second codebooks, wherein each of the codebooks in the codebook set has a different modulation order.
- the third determining module includes: a third determining unit, configured to determine a first feature sequence to which the first codebook belongs, the one or more One or more second feature sequences to which the second codebook belongs, and the first feature matrix to which the first feature sequence and the one or more second feature sequences belong, wherein each feature matrix consists of two or two More than one feature sequence composition, each of the feature sequences corresponding to one or more codebooks, the feature sequence consisting of a zero element and an element, the zero element indicating that all codewords in the corresponding codebook are at the zero element
- the modulation symbols of the corresponding locations are all zero modulation symbols, and the 1 element indicates that all the codewords in the corresponding codebook are not all zero modulation symbols or all non-zero modulation symbols at corresponding positions of the 1 element
- fourth determination a unit configured to determine the codebook indication information, where the codebook indication information includes first feature matrix information, first feature sequence information, and second indication information, where the
- the second indication information that is determined by the fourth determining unit includes: third codebook information, second feature Sequence information and fourth codebook information, wherein the third codebook information is used to indicate the first codebook in the one or more codebooks corresponding to the first feature sequence, and the second feature sequence information is used to indicate The one or more second feature sequences in the first feature matrix, the fourth codebook information is used to indicate the one or more of the one or more codebooks corresponding to the one or more second feature sequences The second codebook.
- the second indication information that is determined by the fourth determining unit is included in the first feature matrix
- Each of the feature sequences has a corresponding one of the M sets of bit string information, and each set of bit string information is used to indicate whether the corresponding feature sequence belongs to the first feature sequence or the one or more second feature sequences, and each group
- the group of bit string information is further used to indicate one or more codebooks corresponding to the corresponding feature sequence.
- the second indication information that is determined by the fourth determining unit includes the first codebook and The modulation order information of the one or more second codebooks, wherein each of the one or more codebooks corresponding to the feature sequence has a different modulation order.
- the third determining module includes: a fifth determining unit, configured to determine the first mode, and the terminal device in the first data stream and the first Sorting in a plurality of terminal devices to which the data stream belongs, the first mode is used to indicate the third codebook set to which the first codebook and the one or more second codebooks belong, and the third codebook set
- the codebook is allocated information in the plurality of terminal devices; wherein each codebook set includes at least one codebook, the codebook set satisfies that the codewords in the same codebook set have the same total number of modulation symbols, and are the same The codebook in the codebook set has the same total number of codewords;
- the sixth determining unit is configured to determine the codebook indication information, where the codebook indication information includes first mode information and first terminal device ranking information, where the first A mode information is used to indicate the first mode, and the first terminal device ranking information is used to indicate the ordering of the terminal device in the multiple terminal devices.
- the third determining module includes: a seventh determining unit, configured to determine a second mode, the terminal device in the first data stream, and the first The ordering in the plurality of terminal devices to which the two data streams belong, and the codebook set used by each of the plurality of terminal devices, the second mode is used to indicate the first codebook and the one or more a second feature matrix to which the two codebook belongs, and allocation information of the feature sequence in the second feature matrix in the plurality of terminal devices; wherein each feature matrix corresponds to one or more codebook sets, the feature matrix is composed of Two or more feature sequences consisting of a zero element and an element, the zero element indicating that all code words in the corresponding codebook have zero modulation symbols at corresponding positions of the zero element The 1 element indicates that all codewords in the corresponding codebook have not all zero modulation symbols or all non-zero modulation symbols at corresponding positions of the 1 element; each codebook set includes at least one codebook.
- the terminal device ranking information is used to indicate the order of the terminal device in the plurality of terminal devices, and the third codebook set information is used to indicate the codebook set corresponding to the second feature matrix respectively used by each terminal device.
- the sending module is specifically used And transmitting a downlink scheduling message, a dedicated high-layer control signaling, or a system broadcast message to the terminal device, where the downlink scheduling message, the dedicated high-layer control signaling, and the system broadcast message include the codebook indication information.
- the dedicated high layer control signaling includes a radio resource control RRC connection setup message and an RRC connection reconfiguration message.
- the third determining The codebook indication information determined by the module is bit string information.
- the codebook is Sparse code multiple access to SCMA codebook.
- the code code includes a number of zero modulation symbols in the codeword that is greater than or equal to a non-zero modulation symbol. quantity.
- the device is a network device.
- the fourth aspect provides an apparatus for transmitting indication information
- the apparatus includes: a receiving module, configured to receive codebook indication information sent by a network device, where the codebook indication information is used to indicate that the network device sends the first downlink data. a first codebook used by the stream, and one or more second codebooks used by the network device to send the second downlink data stream, where the second downlink data stream is the first downlink data
- the codebook is composed of two or more code words, the codeword is multi-dimensional complex a vector, configured to represent a mapping relationship between the data and the at least two modulation symbols, the at least two modulation symbols including at least one zero modulation symbol and at least one non-zero modulation symbol
- a determining module configured to receive according to the receiving module
- the codebook indication information determines the first codebook and the one or more second codebooks
- the decoding module is configured to determine the first codebook and the one or more second codebooks according
- the codebook indication information received by the receiving module includes first codebook cluster information, first codebook set information, and first indication information, where The first codebook cluster information is used to indicate a first codebook cluster, where the first codebook set information is used to indicate a first codebook set in the first codebook cluster, and the first indication information is used to indicate the a first codebook in the first codebook set, where the first indication information is further used to indicate one or more second codebook sets in the first codebook cluster, and the one or more second codebook sets The one or more second codebooks; wherein the determining module includes: a first determining unit, configured to determine, according to the first codebook cluster information, the first codebook set information, and the first indication information, The first codebook in the first codebook set included in a codebook cluster, and the one or more second codebooks in the one or more second codebook sets included in the first codebook cluster, wherein Each codebook cluster includes at least one codebook set, each of the codebook
- the first indication information received by the receiving module includes: first codebook information, second codebook set Information and second codebook information, wherein the first codebook information is used to indicate the first codebook in the first codebook set, and the second codebook set information is used to indicate in the first codebook cluster The one or more second codebook sets, the second codebook information being used to indicate the one or more second codebooks in the one or more second codebook sets.
- the first indication information received by the receiving module includes each code in the first codebook cluster The set of one-to-one corresponding M-group bit string information, each set of bit string information is used to indicate whether the corresponding codebook set belongs to the first codebook set or the one or more second codebook sets, and each group Bit string letter When the corresponding codebook set belongs to the first codebook set or the one or more second codebook sets, the group of bit string information is further used to indicate the first codebook or the one in the corresponding codebook set. Or a plurality of second codebooks, where M is the number of codebook sets included in the first codebook cluster.
- the first indication information received by the receiving module includes the first codebook and the one Or modulation order information of the plurality of second codebooks, wherein each of the codebooks in each of the codebook sets has different modulation orders.
- the codebook indication information received by the receiving module includes first feature matrix information, first feature sequence information, and second indication information, where The first feature matrix information is used to indicate a first feature matrix, where the first feature sequence information is used to indicate a first feature sequence in the first feature matrix, and the second indication information is used to indicate a corresponding one of the first feature sequences.
- the second indicator information is further used to indicate one or more second feature sequences in the first feature matrix, and the one or more second feature sequences corresponding to The one or more second codebooks in the one or more codebooks; wherein the determining module comprises: a second determining unit, configured to use the first feature matrix information, the first feature sequence information, and the second Determining information, determining the first codebook in the one or more codebooks corresponding to the first feature sequence included in the first feature matrix, and the one or more second features included in the first feature matrix
- the one or more second codebooks in the sequence wherein each feature matrix is composed of two or more feature sequences, each of the feature sequences corresponding to one or more of the codebooks, the feature sequence being zero
- the element and the 1 element are composed, and the zero element indicates that the modulation symbols of all the code words in the corresponding codebook at the corresponding position of the zero element are all zero modulation symbols, and the 1 element indicates that all the code words in the corresponding codebook are The modulation symbols
- the second indication information received by the receiving module includes: third codebook information, second feature sequence information And the fourth codebook information, wherein the third codebook information is used to indicate the first codebook in the one or more codebooks corresponding to the first feature sequence, and the second feature sequence information is used to indicate the first codebook The one or more second feature sequences in a feature matrix, the fourth codebook information being used to indicate the one or more second ones of the one or more codebooks corresponding to the one or more second feature sequences Codebook.
- the seventh possible implementation in the fourth aspect In the current mode, the second indication information received by the receiving module includes M sets of bit string information corresponding to each feature sequence in the first feature matrix, and each set of bit string information is used to indicate whether the corresponding feature sequence is And belonging to the first feature sequence or the one or more second feature sequences, when each of the feature sequences corresponding to the set of bit string information belongs to the first feature sequence or the one or more second feature sequences
- the bit string information is further used to indicate the first codebook or the one or more second codebooks in the one or more codebooks corresponding to the corresponding feature sequence, where M is a feature included in the first feature matrix The number of sequences.
- the second indication information received by the receiving module includes the first codebook and the one Or modulation order information of the plurality of second codebooks, wherein each of the one or more codebooks corresponding to the feature sequence has different modulation orders.
- the codebook indication information received by the receiving module includes first mode information and first terminal device ranking information, where the first mode information is used by Instructing the first mode, the first mode is used to indicate that the first codebook and the third codebook set to which the one or more second codebooks belong, and the codebook in the third codebook set are at the first The data stream and the allocation information in the plurality of terminal devices to which the second data stream belongs, the first terminal device ranking information is used to indicate the ordering of the terminal device in the plurality of terminal devices; wherein the determining module includes: a determining unit, configured to determine, according to the first mode information and the first terminal device ranking information, the first code corresponding to the first terminal device ranking information in the third codebook set indicated by the first mode And the one or more second codebooks, wherein each codebook set includes at least one codebook, the codebook set satisfies that the codewords in the same codebook set have the same total number of modulation symbols, and are the same
- the codebook indication information received by the receiving module includes second mode information, second terminal device ordering information, and third codebook set information, where
- the second mode information is used to indicate a second mode, where the second mode is used to indicate that the first codebook and the second feature matrix to which the one or more second codebooks belong, and the second feature matrix
- the third code set information is used to indicate a codebook set corresponding to the second feature matrix used by each of the plurality of terminal devices
- the determining module includes: a fourth determining unit, configured to: The second mode information, the second terminal device ranking information, and the first And determining, in the one or more codebook sets corresponding to the second feature matrix indicated by the second mode, the first codebook corresponding to the second terminal device ranking information, and the one or
- each codebook set includes at least one codebook, the codebook set satisfies that the codewords in the same codebook set have the same total number of modulation symbols, and the same codebook set
- the codebook has the same total number of codewords; wherein each codebook in the codebook set corresponds to each feature sequence in the feature matrix.
- the receiving module is specifically used And receiving the downlink scheduling message, the dedicated high-layer control signaling, or the system broadcast message sent by the network device, where the downlink scheduling message, the dedicated high-layer control signaling, and the system broadcast message include the codebook indication information.
- the dedicated high-layer control signaling includes a radio resource control RRC connection setup message and an RRC connection reconfiguration message.
- the receiving module receives
- the codebook indication information is bit string information.
- the codebook is Sparse code multiple access to SCMA codebook.
- the code code includes a number of zero modulation symbols in the codeword that is greater than or equal to a non-zero modulation symbol. quantity.
- the device is a terminal device.
- an apparatus for transmitting indication information comprising: a processor, and storing a memory, a bus system and a transmitter, wherein the processor, the memory and the transmitter are connected by the bus system, the memory is for storing instructions for executing instructions stored in the memory to control the transmitter Transmitting a signal; wherein the processor is configured to: determine, in the one or more codebooks, a first codebook used to send the first downlink data stream to the terminal device, where the codebook is composed of two or more codewords
- the codeword is a multi-dimensional complex vector for indicating a mapping relationship between data and at least two modulation symbols, the at least two modulation symbols including at least one zero modulation symbol and at least one non-zero modulation symbol; determining to send the second downlink One or more second codebooks used by the data stream, where the second downlink data stream is one of the time-frequency resources used by the first downlink data stream except the first downlink data stream Or a plurality of downlink data streams; and determining codebook
- the determining, by the processor, the codebook indication information for indicating the first codebook and the one or more second codebooks including: determining a first codebook set to which the first codebook belongs, one or more second codebook sets to which the one or more second codebooks belong, and the first codebook set and the one or more second codes a first codebook cluster to which the set belongs, wherein each codebook cluster includes at least one codebook set, each codebook set includes at least one codebook, and the codebook cluster satisfies codewords in the same codebook cluster The total number of modulation symbols is the same, and the codebook set satisfies any two codebooks in the same codebook set.
- the modulation symbols of all codewords are the same as the position of the zero modulation symbol, or the codebook set satisfies the code in the same codebook set.
- the word has the same total number of modulation symbols, and the codebooks in the same codebook set have the same total number of codewords; the codebook indication information is determined, and the codebook indication information includes the first codebook cluster information and the first codebook set. Information and first indication information, wherein the first The codebook cluster information is used to indicate the first codebook cluster, the first codebook set information is used to indicate the first codebook set in the first codebook cluster, and the first indication information is used to indicate the first codebook set.
- the first codebook in the codebook set, the first indication information is further used to indicate the one or more second codebook sets in the first codebook cluster, and the one or more second codebook sets The one or more second codebooks.
- the first indication information that is determined by the processor includes: the first codebook information, the second codebook set Information and second codebook information, wherein the first codebook information is used to indicate the first codebook in the first codebook set, and the second codebook set information is used to indicate in the first codebook cluster
- the first codebook information is used to indicate the first codebook in the first codebook set
- the second codebook set information is used to indicate in the first codebook cluster
- the one or more second codebook sets, the second codebook information is used to indicate the one or the set of the one or more second codebooks Multiple second codebooks.
- the first indication information determined by the processor includes each code in the first codebook cluster The set of one-to-one corresponding M-group bit string information, each set of bit string information is used to indicate whether the corresponding codebook set belongs to the first codebook set or the one or more second codebook sets, and each group When the corresponding codebook set of the bit string information belongs to the first codebook set or the one or more second codebook sets, the each group of bit string information is further used to indicate the first codebook or the corresponding codebook set.
- the first indication information determined by the processor includes the first codebook and the one Or modulation order information of the plurality of second codebooks, wherein each of the codebooks in each of the codebook sets has different modulation orders.
- the determining, by the processor, the codebook indication information for indicating the first codebook and the one or more second codebooks including: determining The first feature sequence to which the first codebook belongs, the one or more second feature sequences to which the one or more second codebooks belong, and the first feature sequence and the one or more second feature sequences belong to a first feature matrix, wherein each feature matrix is composed of two or more feature sequences, each of the feature sequences corresponding to one or more codebooks, the feature sequence consisting of zero elements and 1 element, the zero The element indicates that all the codewords in the corresponding codebook have zero modulation symbols at corresponding positions of the zero element, and the 1 element indicates modulation symbols of all codewords in the corresponding codebook at corresponding positions of the 1 element.
- the codebook indication information including first feature matrix information, first feature sequence information, and second indication information, wherein the first The symbol matrix information is used to indicate the first feature matrix, the first feature sequence information is used to indicate the first feature sequence in the first feature matrix, and the second indication information is used to indicate a corresponding one of the first feature sequences.
- the second indication information that is determined by the processor includes: third codebook information, second feature sequence information And the fourth codebook information, wherein the third codebook information is used to indicate the first codebook in the one or more codebooks corresponding to the first feature sequence, and the second feature sequence information is used to indicate the first codebook The one or more second feature sequences in a feature matrix, the fourth codebook information being used to indicate the one or more second ones of the one or more codebooks corresponding to the one or more second feature sequences Codebook.
- the second indication information determined by the processor includes each feature sequence in the first feature matrix One-to-one corresponding M group bit string information, each set of bit string information is used to indicate whether the corresponding feature sequence belongs to the first feature sequence or the one or more second feature sequences, corresponding to each group of bit string information
- the group of bit string information is further used to indicate the first codebook in the one or more codebooks corresponding to the corresponding feature sequence. Or the one or more second codebooks, where M is the number of feature sequences included in the first feature matrix.
- the second indication information determined by the processor includes the first codebook and the one Or modulation order information of the plurality of second codebooks, wherein each of the one or more codebooks corresponding to the feature sequence has different modulation orders.
- the determining, by the processor, the codebook indication information for indicating the first codebook and the one or more second codebooks including: determining a first mode and an order of the terminal device in the plurality of terminal devices to which the first data stream and the second data stream belong, the first mode being used to indicate the first codebook and the one or more second codes The third codebook set to which it belongs, and the allocation information of the codebooks in the third codebook set in the plurality of terminal devices; wherein each codebook set includes at least one codebook, the codebook set satisfies the same The codewords in the codebook set have the same total number of modulation symbols, and the codebooks in the same codebook set have the same total number of codewords; the codebook indication information is determined, and the codebook indication information includes the first mode information and the first The terminal device ranking information, wherein the first mode information is used to indicate the first mode, and the first terminal device ranking information is used to indicate the ordering of the terminal device
- the determining, by the processor, the codebook indication information for indicating the first codebook and the one or more second codebooks including: determining a second mode, a ranking of the terminal device in the plurality of terminal devices to which the first data stream and the second data stream belong, and a codebook set used by each of the plurality of terminal devices, the second The mode is used to indicate allocation information of the first codebook and the second feature matrix to which the one or more second codebooks belong, and the feature sequence in the second feature matrix in the plurality of terminal devices;
- Feature matrix corresponds to one or more codebook sets, the feature matrix consists of two or more feature sequences
- the component sequence is composed of a zero element and an element, and the zero element indicates that all codewords in the corresponding codebook have zero modulation symbols at corresponding positions of the zero element, and the one element represents the corresponding code.
- the modulation symbols of all the codewords in the corresponding position of the 1 element are not all zero modulation symbols or all non-zero modulation symbols; each codebook set includes at least one codebook, and the codebook set satisfies the same codebook set.
- the codeword has the same total number of modulation symbols, and the codebooks in the same codebook set have the same total number of codewords; wherein each codebook in the codebook set corresponds to each feature sequence in the feature matrix respectively Determining the codebook indication information, the codebook indication information includes second mode information, second terminal device ranking information, and third codebook set information, wherein the second mode information is used to indicate the second mode, the first mode
- the second terminal device ranking information is used to indicate the ordering of the terminal device in the plurality of terminal devices, where the third codebook set information is used to indicate that each of the terminal devices separately uses the second special Matrix corresponding codebook set.
- the codebook indication information including: sending, to the terminal device, a downlink scheduling message, a dedicated high-layer control signaling, or a system broadcast message, where the downlink scheduling message, the dedicated high-layer control signaling, and the system broadcast message include the codebook Instructions.
- the dedicated high-layer control signaling includes a radio resource control RRC connection setup message and an RRC connection reconfiguration message.
- the processor determines
- the codebook indication information is bit string information.
- the codebook is Sparse code multiple access to SCMA codebook.
- the codebook includes a number of zero modulation symbols in the codeword that is greater than or equal to a non-zero modulation symbol. quantity.
- the device is a network device.
- a sixth aspect provides an apparatus for transmitting indication information, the apparatus comprising: a processor, a memory, a bus system, and a receiver, wherein the processor, the memory, and the receiver are connected by the bus system, and the memory is used by the memory And storing, by the processor, an instruction stored in the memory to control the receiver to receive a signal; wherein the receiver is configured to: receive codebook indication information sent by the network device, where the codebook indication information is used to indicate the network The device sends the first codebook used by the first downlink data stream, and the network device sends one or more second codebooks used by the second downlink data stream, where the second downlink data stream is the first downlink One or more downlink data streams carried on the time-frequency resource used by the data stream except the first downlink data stream, the codebook is composed of two or more code words, the codeword is multi-dimensional a complex vector for indicating a mapping relationship between data and at least two modulation symbols, the at least two modulation symbols including at least one zero modulation symbol and at least one non-
- the codebook indication information received by the receiver includes first codebook cluster information, first codebook set information, and first indication information, where The first codebook cluster information is used to indicate a first codebook cluster, where the first codebook set information is used to indicate a first codebook set in the first codebook cluster, and the first indication information is used to indicate the a first codebook in the first codebook set, where the first indication information is further used to indicate one or more second codebook sets in the first codebook cluster, and the one or more second codebook sets The one or more second codebooks; wherein the determining, by the processor, the first codebook and the one or more second codebooks according to the codebook indication information, including: according to the first codebook cluster information, the Determining, by the first codebook set information and the first indication information, the first codebook in the first codebook set included in the first codebook cluster, and the one or more The one or more second codebooks in the set of two codebooks, wherein each codebook cluster includes
- the modulation symbols for all codewords are the same as the position of the zero modulation symbol, or the codebook set satisfies the same codebook set.
- the codeword has the same total number of modulation symbols, and the codebooks in the same codebook set have the total codewords. The same amount.
- the first indication information received by the receiver includes: first codebook information, and second codebook set Information and second codebook information, wherein the first codebook information is used to indicate the first codebook set The first codebook, the second codebook information is used to indicate the one or more second codebook sets in the first codebook cluster, and the second codebook information is used to indicate the one or more The one or more second codebooks in the second codebook set.
- the first indication information received by the receiver includes each code in the first codebook cluster
- the set of one-to-one corresponding M-group bit string information each set of bit string information is used to indicate whether the corresponding codebook set belongs to the first codebook set or the one or more second codebook sets, and each group
- the each group of bit string information is further used to indicate the first codebook or the corresponding codebook set.
- the first indication information received by the receiver includes the first codebook and the one Or modulation order information of the plurality of second codebooks, wherein each of the codebooks in each of the codebook sets has different modulation orders.
- the codebook indication information received by the receiver includes first feature matrix information, first feature sequence information, and second indication information, where The first feature matrix information is used to indicate a first feature matrix, where the first feature sequence information is used to indicate a first feature sequence in the first feature matrix, and the second indication information is used to indicate a corresponding one of the first feature sequences.
- the second indicator information is further used to indicate one or more second feature sequences in the first feature matrix, and the one or more second feature sequences corresponding to The one or more second codebooks in the one or more codebooks; wherein the processor determines the first codebook and the one or more second codebooks according to the codebook indication information, including: Determining, by the first feature matrix information, the first feature sequence information and the second indication information, the first codebook in the one or more codebooks corresponding to the first feature sequence included in the first feature matrix, and the First The one or more second codebooks of the one or more second feature sequences included in the feature matrix, wherein each feature matrix is composed of two or more feature sequences, one for each of the feature sequences Or a plurality of the codebooks, the feature sequence is composed of a zero element and an element, and the zero element indicates that all codewords in the corresponding codebook have zero modulation symbols at corresponding positions of the zero element, and the 1 element The modulation symbols representing all codewords in the
- the second indication information received by the receiver includes: third codebook information, second feature sequence information, and fourth codebook information, where the third codebook information is used to indicate the first feature sequence.
- the second feature sequence information is used to indicate the one or more second feature sequences in the first feature matrix, and the fourth codebook information is used to And indicating the one or more second codebooks in the one or more codebooks corresponding to the one or more second feature sequences.
- the second indication information received by the receiver includes each feature sequence in the first feature matrix One-to-one corresponding M group bit string information, each set of bit string information is used to indicate whether the corresponding feature sequence belongs to the first feature sequence or the one or more second feature sequences, corresponding to each group of bit string information
- the group of bit string information is further used to indicate the first codebook in the one or more codebooks corresponding to the corresponding feature sequence. Or the one or more second codebooks, where M is the number of feature sequences included in the first feature matrix.
- the second indication information received by the receiver includes the first codebook and the one Or modulation order information of the plurality of second codebooks, wherein each of the one or more codebooks corresponding to the feature sequence has different modulation orders.
- the codebook indication information received by the receiver includes first mode information and first terminal device ranking information, where the first mode information is used by Instructing the first mode, the first mode is used to indicate that the first codebook and the third codebook set to which the one or more second codebooks belong, and the codebook in the third codebook set are at the first The data stream and the allocation information in the plurality of terminal devices to which the second data stream belongs, the first terminal device ranking information is used to indicate the ordering of the terminal device in the plurality of terminal devices; wherein the processor is based on the code Determining, by the indication information, the first codebook and the one or more second codebooks, including: according to the first mode information and the first terminal device ranking information, in the third codebook set indicated by the first mode Determining, by the first terminal device, the first codebook corresponding to the first terminal device ranking information, and the one or more second codebooks, wherein each codebook set includes at least one codebook, the codebook set satis
- the codebook indication information received by the receiver includes the second mode information, the second terminal device ranking information, and the third codebook And the second mode information is used to indicate the second mode, where the second mode is used to indicate the first codebook and the second feature matrix to which the one or more second codebooks belong, and the first The distribution information of the feature sequence in the second feature matrix in the plurality of terminal devices to which the first data stream and the second data stream belong, the second terminal device ranking information is used to indicate that the terminal device is in the multiple terminal devices Sorting, the third codebook set information is used to indicate a codebook set corresponding to the second feature matrix respectively used by each of the plurality of terminal devices; wherein the processor indicates the information according to the codebook Determining the first codebook and the one or more second codebooks, including: indicating, according to the second mode information, the second terminal device ranking information, and the third codebook set information, in the second mode Determining, in the one or more codebook sets corresponding to
- the receiver receives the network
- the codebook indication information sent by the device includes: receiving a downlink scheduling message, a dedicated high-layer control signaling, or a system broadcast message sent by the network device, where the downlink scheduling message, the dedicated high-layer control signaling, and the system broadcast message include the codebook Instructions.
- the dedicated high-layer control signaling includes a radio resource control RRC connection setup message and an RRC connection reconfiguration message.
- the receiver receives
- the codebook indication information is bit string information.
- the codebook is Sparse code multiple access to SCMA codebook.
- the code code includes a number of zero modulation symbols in the codeword that is greater than or equal to a non-zero modulation symbol. quantity.
- the device is a terminal device.
- the method and apparatus for transmitting indication information in the embodiment of the present invention determines, by using the network device, the first codebook used by the first downlink data stream to be sent to the terminal device in one or more codebooks, and determines to send One or more second codebooks used by the second downlink data stream, where the second downlink data stream is carried on the time-frequency resource used by the first downlink data stream except the first downlink data stream.
- the device can determine the codebook used by all the data streams carried on the same time-frequency resource, and can decode the first data stream sent by the network device to the terminal device according to the codebooks, whereby the network device and the terminal device can be based on The codebook performs downlink data transmission and can effectively improve the network capacity of the system.
- FIG. 1 is a schematic architectural diagram of a communication system to which an embodiment of the present invention is applied.
- FIG. 2 is a schematic coding schematic diagram of a non-orthogonal multiple access system.
- FIG. 3 is a schematic flowchart of a method for transmitting indication information according to an embodiment of the present invention.
- FIG. 4 is a schematic flowchart of a method for determining codebook indication information according to an embodiment of the present invention.
- FIG. 5 is another schematic flowchart of a method for determining codebook indication information according to an embodiment of the present invention.
- FIG. 6 is a schematic flowchart of a method for transmitting indication information according to another embodiment of the present invention.
- FIG. 7 is another schematic flowchart of a method for transmitting indication information according to another embodiment of the present invention.
- FIG. 8 is still another schematic flowchart of a method for transmitting indication information according to another embodiment of the present invention.
- FIG. 9 is a schematic block diagram of an apparatus for transmitting indication information according to an embodiment of the present invention.
- Figure 10 is a schematic block diagram of a third determining module of the apparatus in accordance with an embodiment of the present invention.
- FIG. 11 is another schematic block diagram of a third determining module of an apparatus in accordance with an embodiment of the present invention.
- FIG. 12 is a schematic block diagram of an apparatus for transmitting indication information according to another embodiment of the present invention.
- Figure 13 is a schematic block diagram of a determination module of a device in accordance with another embodiment of the present invention.
- FIG. 14 is a schematic block diagram of an apparatus for transmitting indication information according to still another embodiment of the present invention.
- FIG. 15 is a schematic block diagram of an apparatus for transmitting indication information according to still another embodiment of the present invention.
- FIG. 16 is still another schematic flowchart of a method for determining codebook indication information according to an embodiment of the present invention.
- FIG. 17 is still another schematic flowchart of a method for determining codebook indication information according to an embodiment of the present invention.
- FIG. 18 is still another schematic flowchart of a method for transmitting indication information according to another embodiment of the present invention.
- FIG. 19 is still another schematic flowchart of a method for transmitting indication information according to another embodiment of the present invention.
- FIG. 20 is still another schematic block diagram of a third determining module of the apparatus in accordance with an embodiment of the present invention.
- Figure 21 is still another schematic block diagram of a third determining module of the apparatus in accordance with an embodiment of the present invention.
- Figure 22 is a schematic block diagram of a determining module of an apparatus in accordance with another embodiment of the present invention.
- the technical solutions of the embodiments of the present invention may be applied to various communication systems based on non-orthogonal multiple access technologies, such as SCMA systems.
- SCMA may also be referred to as other names in the field of communications;
- the present invention The technical solution of the embodiment can be applied to a multi-carrier transmission system using a non-orthogonal multiple access technology, for example, Orthogonal Frequency Division Multiplexing (OFDM) is adopted.
- OFDM Orthogonal Frequency Division Multiplexing
- FBMC Filter Bank Multi-Carrier
- GFDM Generalized Frequency Division Multiplexing
- F Filtered OFDM
- F Filtered-OFDM
- the terminal device may communicate with one or more core networks via a radio access network (Radio Access Network, hereinafter referred to as "RAN”), and the terminal device may be referred to as an access terminal.
- RAN Radio Access Network
- UE User Equipment
- subscriber unit subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user equipment.
- the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol ("SSIP”) phone, a Wireless Local Loop (WLL) station, and a personal digital processing (Personal Digital) Assistant, referred to as "PDA” for short, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, and terminal devices in future 5G networks.
- SSIP Session Initiation Protocol
- WLL Wireless Local Loop
- PDA Personal Digital Processing
- the network device may be used to communicate with the terminal device, and the network device may be a Global System of Mobile communication (“GSM”) system or a code division multiple access (Code Division).
- GSM Global System of Mobile communication
- a base station Base Transceiver Station, abbreviated as "BTS” in Multiple Access (“CDMA”), or a base station in a Wideband Code Division Multiple Access (WCDMA) system.
- the NodeB (abbreviated as "NB”) may also be an evolved base station (Evolutional Node B, "eNB” or “eNodeB”) in the Long Term Evolution (LTE) system, or the network.
- the device can be a relay station, an access point, an in-vehicle device, a wearable device, and a base station device in a future 5G network.
- FIG. 1 shows a schematic architectural diagram of a communication system to which an embodiment of the present invention is applied.
- the communication system 100 can include a network device 102, which can include one or more antenna groups, each of which can include one or more antennas.
- a network device 102 can include one or more antenna groups, each of which can include one or more antennas.
- one antenna group may include antennas 104 and 106
- another antenna group may include antennas 108 and 110
- an additional group may include antennas 112 and 114.
- two antennas are shown for each antenna group in Figure 1, it should be understood that each antenna group may have more or fewer antennas.
- Network device 102 may additionally include a transmitter chain and a receiver chain, as will be understood by those of ordinary skill in the art, Signal transmission and reception related components (such as processors, modulators, multiplexers, demodulators, demultiplexers or antennas, etc.).
- Signal transmission and reception related components such as processors, modulators, multiplexers, demodulators, demultiplexers or antennas, etc.
- Network device 102 can communicate with a plurality of terminal devices, such as terminal device 116 and terminal device 122. However, it will be appreciated that network device 102 can communicate with any number of terminal devices similar to terminal device 116 or 122.
- Terminal devices 116 and 122 can be, for example, cellular telephones, smart phones, portable computers, handheld communication devices, handheld computing devices, satellite radios, global positioning systems, PDAs, and/or any other for communicating over wireless communication system 100. Suitable for equipment.
- terminal device 116 is in communication with antennas 112 and 114, wherein antennas 112 and 114 transmit information to terminal device 116 over forward link 118 and receive information from terminal device 116 over reverse link 120.
- terminal device 122 is in communication with antennas 104 and 106, wherein antennas 104 and 106 transmit information to terminal device 122 over forward link 124 and receive information from terminal device 122 over reverse link 126.
- the forward link 118 can utilize a different frequency band than the reverse link 120, and the forward link 124 can utilize the reverse link.
- 126 different frequency bands for example, in a Time Division Duplex (“TDD”) system and a Full Duplex system, the forward link 118 and the reverse link 120 can use a common The frequency band, forward link 124 and reverse link 126 may also use a common frequency band.
- TDD Time Division Duplex
- the forward link 118 and the reverse link 120 can use a common The frequency band, forward link 124 and reverse link 126 may also use a common frequency band.
- Each set of antennas and/or regions designed for communication is referred to as a sector of network device 102.
- the antenna group can be designed to communicate with terminal devices in sectors of the network device 102 coverage area.
- the transmit antenna of network device 102 may utilize beamforming to improve the signal to noise ratio of forward links 118 and 124.
- the network device 102 uses beamforming to transmit signals to the randomly dispersed terminal devices 116 and 122 in the relevant coverage area, the network device 102 uses a single antenna to transmit signals to all of its terminal devices. Mobile devices are subject to less interference.
- network device 102, terminal device 116, or terminal device 122 may be a wireless communication transmitting device and/or a wireless communication receiving device.
- the wireless communication transmitting device can encode the data for transmission.
- the wireless communication transmitting device may acquire (eg, generate, receive from other communication devices, or store in memory, etc.) a certain number of data bits to be transmitted over the channel to the wireless communication receiving device.
- Such data bits can be included in the transport block of data (or more Of the transport blocks, the transport block can be segmented to produce a plurality of code blocks.
- the communication system is a non-orthogonal multiple access system, for example, the system is an SCMA system, and the network device is, for example, a base station, and the terminal device is, for example, a user equipment.
- SCMA non-orthogonal multiple access system
- the network device is, for example, a base station
- the terminal device is, for example, a user equipment.
- the embodiment of the present invention is described by taking only the SCMA system, the base station, and the user equipment as an example, but the present invention is not limited thereto.
- the communication system is, for example, an SCMA system.
- the coding principle of the transmitting end of a non-orthogonal multiple access system such as an SCMA system will be briefly described below with reference to FIG.
- a resource unit can be a subcarrier, or a resource element (Resource Element, referred to as "RE"), or an antenna port.
- RE Resource Element
- the data combinations to be transmitted of the six data streams in the bipartite graph are sequentially represented by s1 to s6, and the modulation symbols transmitted on the four resource units in the bipartite graph are sequentially represented by x1 to x4.
- the data combination of each data stream is transmitted by two or more resource units after the codeword mapping, and the modulation symbols sent by each resource unit are from two.
- the data combination of one or more data streams is superimposed by the modulation symbols mapped by the respective codewords.
- the data combination s3 of the data stream 3 may be transmitted with non-zero modulation symbols on the resource unit 1 and the resource unit 2 after the codeword mapping, and the modulation symbol x3 transmitted by the resource unit 3 is the data stream 2 and the data stream 4
- the superposition of the non-zero modulation symbols obtained by combining the data to be transmitted s2, s4 and s6 of the data stream 6 with the respective codewords. Since the number of data streams can be greater than the number of resource units, the non-orthogonal multiple access system can effectively increase network capacity, including the number of accessible users and spectrum efficiency of the system.
- the method 200 includes:
- S210 Determine, in one or more codebooks, a first codebook used to send a first downlink data stream to a terminal device, where the codebook is composed of two or more codewords, where the codeword is a multi-dimensional complex vector. And for indicating a mapping relationship between data and at least two modulation symbols, the at least two modulation symbols including at least one zero modulation symbol and at least one non-zero modulation symbol;
- the network device allocates or specifies a codebook for one or more downlink data streams to be received of each terminal device; in order to enable the terminal device to The downlink data stream sent by the terminal device is correctly received or decoded.
- the terminal device not only needs to know the codebook used by the network device to send the downlink data stream, but also needs to know the time-frequency resource used by the network device to send the downlink data stream.
- One or more codebooks used to send other downstream data streams are examples of codebook for the network device to send the downlink data stream.
- the network device may determine the first codebook and the one or more second codebooks, and determine codebook indication information for indicating the first codebook and the one or more second codebooks, the first The codebook is a codebook used by the network device to send the first downlink data stream to the terminal device, where the one or more second codebooks are one or more used by the network device to send the second downlink data stream to other terminal devices.
- the codebook indication information may be sent to the terminal device, where the codebook indication information is used to indicate that the terminal device receives the first codebook and the one or more second codebooks used by the first downlink data.
- the terminal device may determine, according to the codebook indication information, a first codebook used by the network device to send the first downlink data stream, and the network device uses the downlink data stream to send the downlink data stream.
- the same time-frequency resource used to send other downstream data streams One or more second codebooks, whereby the terminal device can receive or decode the first downlink data sent by the network device according to the first codebook and the one or more second codebooks. Therefore, the information exchange between the network device and the terminal device enables the terminal device to determine the codebook used by all the data streams carried on the same time-frequency resource, so that the network device and the terminal device can perform downlink data based on the codebook. Transmission and can effectively increase the network capacity of the system.
- the method for transmitting the indication information in the embodiment of the present invention determines, by using the network device, the first codebook used to send the first downlink data stream to the terminal device in one or more codebooks, and determines to send the second downlink data stream.
- One or more second codebooks used wherein the second downlink data stream is one or more of the time-frequency resources used by the first downlink data stream except the first downlink data stream Downstream data streams, and determining codebook indication information for indicating the first codebook and the one or more second codebooks, and transmitting the codebook indication information to the terminal device, so that the terminal device can determine the same time a codebook used by all data streams carried on the frequency resource, and capable of decoding the first data stream sent by the network device to the terminal device according to the codebooks, whereby the network device and the terminal device can perform downlink data based on the codebook Transmission, and can effectively improve the network capacity of the system, including improving the number of accessible users and spectrum efficiency of the system.
- the non-orthogonal multiple access technology transmits a plurality of different data streams on the same resource unit by using the codebook, that is, multiple different data streams multiplex the same resource unit, where different data
- the codebooks used by the streams are different, so as to achieve the purpose of improving the utilization of resources, the data streams may be from the same terminal device or from different terminal devices.
- the codeword can be represented as a multi-dimensional complex vector, and the dimension of the complex vector can be two-dimensional or more, used to represent a mapping relationship between data and two or more modulation symbols, the modulation symbol includes At least one zero modulation symbol and at least one non-zero modulation symbol, the data may be binary bit data or multi-dimensional data.
- a codebook can consist of two or more codewords. The codebook can represent a mapping relationship between a possible data combination of a certain length of data and a codeword in the codebook.
- the non-orthogonal multiple access technology directly maps the data in the data stream to a codeword in the codebook, that is, a multi-dimensional complex vector, to realize extended transmission of data on multiple resource units. It may be binary bit data or multi-dimensional data, and the resource unit may be a resource unit of a time domain, a frequency domain, a spatial domain, a time-frequency domain, a spatio-temporal domain or a time-frequency spatial domain.
- the codewords in the codebook typically have the following form:
- a codebook consisting of two or more codewords usually has the following form:
- N is a positive integer greater than 1, and can be expressed as the number of resource units included in one coding unit, and can also be understood as the length of the codeword;
- Qm is a positive integer greater than 1, indicating the codeword included in the codebook.
- q is a positive integer, and 1 ⁇ q ⁇ Qm.
- the combination of the codeword in the codebook and the data stream may form a certain mapping relationship, for example, the codeword in the codebook may be combined with the two-bit data of the binary data stream to form a mapping relationship: "00" may be mapped to codeword 1; "01” can be mapped to codeword 2; "10” can be mapped to codeword 3; "11” can be mapped to codeword 4, where codeword 1, codeword 2, codeword 3, and codeword 4 can be represented separately for:
- the codebook corresponding to the data stream and the codeword in the codebook should have the following characteristics: at least one codeword exists in the codebook on the corresponding resource unit.
- a non-zero modulation symbol for example, there is a connection between the data stream 3 and the resource unit 1, and at least one codeword in the codebook corresponding to the data stream 3 satisfies c 1, q ⁇ 0, 1 ⁇ q ⁇ Qm;
- the data stream 3 in the above bipartite graph can have the following forms and features:
- the codeword mapped by the data combination s3 is a 4-dimensional complex vector according to the foregoing mapping rule:
- a bipartite graph as shown in FIG. 2 can also be represented by a feature matrix.
- the feature matrix can have the following form:
- r n,m represents an element in the feature matrix
- m and n are natural numbers
- N rows respectively represent N resource units in one coding unit
- M columns respectively Represents the number of data streams multiplexed in a packet.
- the feature matrix can be expressed in a general form, the feature matrix can have the following characteristics:
- the number of 0 elements in the feature matrix is not less than the number of 1 elements, thereby embodying the characteristics of the sparse coding.
- a column in the feature matrix may be referred to as a feature sequence, and the feature sequence may have the following expression form:
- the feature matrix can also be considered as a matrix consisting of a series of feature sequences.
- the corresponding feature matrix can be expressed as:
- the correspondence between the codebook and the feature sequence is a one-to-one relationship, that is, one codebook uniquely corresponds to one feature sequence; and the correspondence between the feature sequence and the codebook can be a one-to-many relationship, that is, one
- the sequence of features may correspond to one or more codebooks. Therefore, the feature sequence can be understood as: the feature sequence corresponds to one or more codebooks, each feature sequence is composed of a zero element and an element, and the zero element represents modulation of all codewords in the corresponding codebook at corresponding positions of the zero element.
- the symbols are all zero modulation symbols, and the 1 element indicates that all the codewords in the corresponding codebook have not all zero modulation symbols or all non-zero modulation symbols at corresponding positions of the 1 element.
- the correspondence between the feature sequence and the codebook can be determined by the following two conditions:
- the codeword in the codebook has the same total number of modulation symbols as the total number of elements of the corresponding feature sequence
- At least one codeword can be found in the corresponding codebook, such that the modulation symbol of the codeword at the 1-element position is not a zero modulation symbol; a zero element, all code words in the corresponding codebook are in the corresponding position of the zero element
- the modulation symbols are all zero modulation symbols.
- the codebook is composed of two or more codewords, and the codeword is a multi-dimensional complex vector for indicating a mapping relationship between data and at least two modulation symbols, the at least two The modulation symbols include at least one zero modulation symbol and at least one non-zero modulation symbol; each feature matrix is composed of two or more feature sequences, each feature matrix corresponding to one or more codebooks, and each feature sequence is also Corresponding to one or more codebooks, the feature sequence is composed of a zero element and an element, and the zero element indicates that all codewords in the corresponding codebook have zero modulation symbols at corresponding positions of the zero element, and the 1 element The modulation symbols representing all codewords in the corresponding codebook at the corresponding position of the 1 element are not all zero modulation symbols or all non-zero modulation symbols.
- multiple codebooks may be divided into one or more codebook clusters, and each codebook cluster may include one or more codebooks, for any two codebooks in the same codebook cluster,
- codebook a and codebook b have the following characteristics: the codeword in codebook a has the same total number of modulation symbols as the codeword in codebook b. Therefore, the codebook in the codebook cluster satisfies the same total number of modulation symbols that all codewords have, that is, the lengths of all the codewords are the same, that is, the number of resource units multiplexed by the data stream is the same.
- multiple codebooks may also be divided into one or more codebook sets, and each codebook set may include one or more codebooks, for any two codebooks in the same codebook set,
- the codebook c and the codebook d have the following features: (1) the codeword in the codebook c has the same total number of modulation symbols as the codeword in the codebook d; (2) for all codes in the codebook c The modulation symbols of the words are all zero modulation symbols, and the modulation symbols of all code words in codebook d are also zero modulation symbols at this position.
- codebook 1 in FIG. 2 can be represented as codebook 1
- codebook 3 can be represented as a code.
- Ben 3 codebook 1 and codebook 3 can be expressed as:
- e n,q ⁇ *exp(j* ⁇ )
- n ⁇ 2,4 ⁇ , 1 ⁇ q ⁇ 4, ⁇ and ⁇ can be any real number, for any q, 1 ⁇ q ⁇ 4, e 2 , q and e 4, q are not zero at the same time, and there is at least one set of q1 and q2, so that And 1 ⁇ q1 ⁇ 4 and 1 ⁇ q2 ⁇ 4.
- modulation symbols of all codewords of codebook 1 at position 3 are all zero modulation symbols, and the modulation symbols of all codewords of codebook 3 at position 3 are also zero.
- the codebook 2 can be expressed as:
- d n,q ⁇ *exp(j* ⁇ )
- 1 ⁇ n ⁇ 2,1 ⁇ q ⁇ 4 ⁇ and ⁇ can be any real number, for any q,1 ⁇ q ⁇ 4,d 1,q And d 2,q are not zero at the same time, and there is at least one set of q1 and q2, so that And 1 ⁇ q1 ⁇ 4 and 1 ⁇ q2 ⁇ 4.
- the modulation symbols of 1 and 2 are also all zero modulation symbols, and all code words of codebook 2 are only zero modulation symbols for the modulation symbols at positions 1 and 2, and all code words of codebook 3 are only at positions 1 and 2
- the modulation symbols are all zero modulation symbols, that is, the codebook 2 and the codebook 3 have the same modulation symbol for all codewords, and the positions of the zero modulation symbols are the same, both position 1 and position 2. Therefore, the codebook 2 and the codebook 3 Belongs to the same codebook set.
- each codebook cluster includes one or more codebook sets, and each codebook set includes one or more codebooks, and each codebook is composed of two or more codebooks.
- a codeword composition wherein each codebook cluster satisfies that the codewords in the same codebook cluster have the same total number of modulation symbols, and each codebook set satisfies that the codewords in the same codebook set have the same total number of modulation symbols. And any two codebooks in the same codebook set have the same modulation symbol for all codewords.
- the codebook can be directly represented and stored, such as directly storing the codewords in the codebook or codebook described above, or only the corresponding features in the codewords.
- the sequence element is a modulation symbol or the like at the position of 1 element. Therefore, when applying the present invention, it is required to assume that both the network device and the terminal device in the non-orthogonal multiple access system can store some or all of the following contents pre-designed:
- One or more feature matrices where r n,m ⁇ 0,1 ⁇ ,1 ⁇ n ⁇ N,1 ⁇ m ⁇ M, M and N are positive integers greater than 1, where M can represent the number of multiplexed data streams, and N can represent The number of resource units contained in a coding unit can also be understood as the length of the codeword;
- Q m may represent a modulation order corresponding to the codebook, and each codebook may correspond to a modulation order, where N is a positive integer greater than 1, and may be represented as a coding unit
- N is a positive integer greater than 1
- the number of resource units can also be understood as the length of the codeword.
- a method 230 of determining codebook indication information according to an embodiment of the present invention will be described in detail below with reference to FIGS. 4 and 5.
- the determining codebook indication information for indicating the first codebook and the one or more second codebooks includes:
- each codebook cluster includes at least one codebook set, and each codebook set includes at least one codebook, and the codebook cluster satisfies the same codebook cluster
- the codeword has the same total number of modulation symbols, and the codebook set satisfies any two codebooks in the same codebook set, and the modulation symbols of all codewords have the same position of zero modulation symbols;
- the codebook indication information is determined, where the codebook indication information includes a first codebook cluster information, a first codebook set information, and first indication information, where the first codebook cluster information is used to indicate the first code.
- the first codebook set information is used to indicate the first codebook set in the first codebook cluster
- the first indication information is used to indicate the first codebook in the first codebook set
- the first indication information is further used to indicate the one or more second codebook sets in the first codebook cluster, and the one or more second codebooks in the one or more second codebook sets.
- the network device and the terminal device may store a pre-designed codebook, where each codebook may be divided into one or more codebook sets, and each codebook set is composed of one or more codes.
- the composition, each codebook corresponds to one modulation order, and any two codes in the same codebook set
- the codebook a and the codebook b have the following characteristics: the codeword in the codebook a has the same total number of modulation symbols as the codeword in the codebook b; and the modulation symbols for all the codewords in the codebook a Both are zero modulation symbol positions, and the modulation symbols of all code words in codebook b are also zero modulation symbols at this position. That is, the codebook set satisfies that the codewords in the same codebook set have the same total number of modulation symbols, and any two codebooks in the same codebook set have the same modulation symbol for all codewords.
- the one or more codebook sets divided according to the above manner may be further divided into one or more codebook clusters, each codebook cluster being composed of one or more codebook sets, and any two codes in the same codebook cluster.
- the set such as the codebook set A and the codebook set B, has the following feature: the codeword in the codebook set A and the codeword in the codebook set B have the same total number of modulation symbols, that is, all codewords have the same length That is, the number of resource units multiplexed by the data stream is the same. That is, the codebook cluster satisfies that the codewords in the same codebook cluster have the same total number of modulation symbols.
- the network device allocates, in the same codebook cluster, a first codebook used for transmitting the first downlink data stream, and one or more seconds respectively used to send the second downlink data stream.
- Codebook In order to indicate the first codebook and the one or more second codebooks to the user equipment, the network device determines, by the first codebook set to which the first codebook belongs, or one or more of the one or more second codebooks a plurality of second codebook sets, and the first codebook set and the first codebook cluster to which the one or more second codebook sets belong; thereby, the network device determines to indicate the first codebook and the
- the codebook indication information of the one or more second codebooks may include first codebook cluster information, first codebook set information, and first indication information.
- the codebook indication information may be composed of three logical information segments, where the logical information segment 1 may carry the first codebook cluster information, and is used to instruct the terminal device to send the first downlink data stream and the second downlink data stream.
- the logical information segment 2 may carry the first codebook set information, and is used to instruct the terminal device to send the first codebook set in the first codebook cluster used by the first downlink data stream;
- the logical information segment 3 may be configured to carry the first indication information, where the first indication information is used to indicate the first codebook in the first codebook set, where the first indication information is further used to indicate the One or more second codebook sets, and the one or more second codebooks in the one or more second codebook sets.
- each logical information segment of the codebook indication information may be continuously or non-continuously appearing in the instruction in which the codebook indication information is located in any one of the sequential manners. Not limited.
- the terminal device sets For example, according to the logical information segment 1 therein, it can be known which codebook cluster in the codebook cluster to use to send the first downlink data stream and the second downlink data stream; the terminal device can learn according to the logical information segment 2 therein.
- the network device sends the first downlink data stream by using the codebook in the codebook cluster indicated by the logical information segment 1; the terminal device can learn that the network device uses the logical information segment 2 according to the logical information segment 3 therein.
- Which codebook in the codebook set sends the first downlink data stream and further, the terminal device can also know which codebook sets in the codebook cluster indicated by the logical information segment 1 and which codebooks in the codebook set are used by the network device Sending a second downlink data stream.
- the information exchange between the network device and the terminal device enables the terminal device to determine the codebook used by all the data streams carried on the same time-frequency resource, so that the network device and the terminal device can perform downlink based on the codebook.
- the transmission of data can effectively improve the network capacity of the system, including increasing the number of accessible users and spectrum efficiency of the system.
- the network device may indicate the first codebook in the first codebook set to the terminal device in multiple manners, and indicate the one or more in the first codebook cluster to the terminal device.
- the two codebook set, and the one or more second codebooks in the one or more second codebook sets, are described separately below.
- the first indication information includes: first codebook information, second codebook set information, and second codebook information, where the first codebook information is used to indicate the first The first codebook in a codebook set, the second codebook information is used to indicate the one or more second codebook sets in the first codebook cluster, and the second codebook information is used to indicate the The one or more second codebooks in the one or more second codebook sets.
- the logical information segment 3 carrying the first indication information may further include three logical information sub-sections, namely, logical information sub-segment 1, logical information sub-segment 2, and logical information sub-
- the logical information sub-segment 1 can carry the first codebook information for indicating the first codebook in the first codebook set
- the logical information sub-segment 2 can carry the second codebook set information, Instructing the one or more second codebook sets in the first codebook cluster
- the logical information subsection 3 may carry second codebook information for indicating the one of the one or more second codebook sets Or multiple second codebooks.
- the logical information sub-segment 1 and the logical information sub-segment 3 may also indicate the downlink by indicating the modulation order.
- the order is such that it is possible to determine a codebook in which the codebook set corresponds one-to-one with the modulation order.
- the first codebook information includes modulation order information of the first codebook, where the modulation order of each codebook in the first codebook set is different;
- the second codebook information includes each second The modulation order information of the codebook, wherein the modulation order of each codebook in the one or more second codebook sets is different.
- the embodiment of the present invention only takes the first indication information including the first codebook information, the second codebook set information, and the second codebook information as an example, but the present invention is not limited thereto.
- the first codebook information and the second codebook information may include only the modulation order information of the codebook.
- the first indication information may only include the second codebook set information; for example, when the network device uses the first codebook and When the one or more second codebooks belong to the same codebook set, the first indication information may include only the first codebook information and the second codebook information; for example, when the network device and the terminal device both adopt the code by default.
- the first indication information may include only the second codebook set information and the information for indicating the fixed number of the codebook.
- the information exchange between the network device and the terminal device enables the terminal device to determine the codebook used by all the data streams carried on the same time-frequency resource, so that the network device and the terminal device can perform downlink based on the codebook.
- the transmission of data can effectively improve the network capacity of the system, including increasing the number of accessible users and spectrum efficiency of the system.
- the first indication information includes M sets of bit string information corresponding to each codebook set in the first codebook cluster, and each set of bit string information is used to indicate corresponding Whether the codebook set belongs to the first codebook set or the one or more second codebook sets, and the codebook set corresponding to the each group of bitstring information belongs to the first codebook set or the one or more
- the group of bit string information is further used to indicate the first codebook or the one or more second codebooks in the corresponding codebook set, where M is the first codebook cluster includes The number of codebook sets.
- the logical information segment 3 may also indicate the codebook used by the downlink data stream by indicating the modulation order.
- the centralized codebook can be used to determine the modulation order corresponding to the downlink data stream sent by the network device according to the logical information segment 3, so that the codebook in the codebook set and the modulation order can be determined. That is, the first indication information includes modulation order information of the first codebook and the one or more second codebooks, wherein each of the codebooks in the codebook set has different modulation orders.
- the first codebook cluster indicated by the logical information segment 1 contains K 2 ⁇ 1 codebook sets, and the modulation order of each codebook in each codebook set is different, and each codebook set has K 3 ⁇ A modulation order can be used
- the logical information segment 3 can include K 2 group bit string information, and each group of bit string information can include L 3 a bit indicating whether the codebook set corresponding to the set of bit string information belongs to the first codebook set or the one or more second codebook sets, and the codebook set corresponding to the set of bitstring information belongs to the codebook set
- the set of bit string information is further used to indicate the first codebook or the one or more second codebooks in the corresponding codebook set.
- the centralized codebook may use non-all 0 bits to represent the codebook in the codebook set corresponding to the kth group of bit segments; for example, the network device may use all 1 bit to indicate unused and the kth group
- the network device may use a codebook set in the codebook set corresponding to the kth group of bit segments by using a non-full 1 bit; when the network device uses the bit segment corresponding to the kth group of bit segments
- the kth group of bit segments may further indicate which codebook in the corresponding codebook set is used by the network device, for example, the kth group of bit segments may include the used code.
- the modulation order information of this may be used code.
- the first indication information may include M groups of bit string information corresponding to each codebook set in the first codebook cluster, and each The group bit string information may be used only to indicate the first codebook or the one or more second codebooks in the corresponding codebook set, where M is the number of codebook sets included in the first codebook cluster, ie Each set of bit string information may be used only to indicate which codebook in the corresponding codebook set is used for transmission of the downlink data stream.
- the logical information segment 3 may be a bit bitmap composed of L 3 bits. Indicates the modulation order used to indicate the downlink data stream sent by the network device.
- the first indication information includes modulation order information of the first codebook and the one or more second codebooks, where each of the codebook sets The codebook has different modulation orders.
- each logical information segment indicates an index value
- the corresponding codebook cluster, codebook set and codebook are uniquely determined by the pre-established correlation index relationship according to the index value indicated by the logical information segment.
- the network device and the terminal device may pre-store the codebook by using various methods, but the following two conditions must be met: First, the network device and the terminal device may learn one according to the stored codebook. The number of resource units or subcarriers or resource particles included in the coding unit; second, the network device and the terminal device can learn, according to the stored codebook, which resource units or subcarriers or resource particles the terminal device will be in a coding unit. Which non-zero modulation symbols are sent.
- a simple and straightforward method of satisfying the above storage conditions is to store the codebook in the form described above, including storing all zero modulation symbols and non-zero modulation symbols of the codeword:
- the codebook used by the variable node 3 in FIG. 2 can be stored as:
- the total number of zero modulation symbols and non-zero modulation symbols in the codeword is the number of resource units or subcarriers or resource particles included in one coding unit, and the position and value of the non-zero modulation symbol are It indicates that the terminal device will send a corresponding non-zero modulation symbol on the resource unit or subcarrier or resource particle corresponding to the location of one coding unit.
- the method for transmitting the indication information in the embodiment of the present invention determines, by using the network device, the first codebook used to send the first downlink data stream to the terminal device in one or more codebooks, and determines to send the second downlink data stream.
- One or more second codebooks used wherein the second downlink data stream is one or more of the time-frequency resources used by the first downlink data stream except the first downlink data stream Downstream data streams, and determining codebook indication information for indicating the first codebook and the one or more second codebooks, and transmitting the codebook indication information to the terminal device, so that the terminal device can determine the same time a codebook used by all data streams carried on the frequency resource, and capable of decoding the first data stream sent by the network device to the terminal device according to the codebooks, whereby the network device and the terminal device can perform downlink data based on the codebook Transmission, and can effectively improve the network capacity of the system, including improving the number of accessible users and spectrum efficiency of the system.
- the feature sequence or the feature matrix since the feature sequence or the feature matrix has a corresponding relationship with the codebook, it may be used to indicate a codebook set or a codebook cluster including one or more codebooks, and thus, the embodiment of the present invention is also
- a code sequence indication message sent to the terminal device may be determined by using a feature sequence or a feature matrix interest.
- a method of determining codebook indication information using a feature sequence or a feature matrix will be described in detail below with reference to FIG.
- FIG. 5 illustrates another embodiment of a method 230 of determining codebook indication information in accordance with an embodiment of the present invention.
- the determining the codebook indication information for the first codebook and the one or more second codebooks includes:
- S233 Determine a first feature sequence to which the first codebook belongs, one or more second feature sequences to which the one or more second codebooks belong, and the first feature sequence and the one or more second features.
- a first feature matrix to which the sequence belongs wherein each feature matrix is composed of two or more feature sequences, each of the feature sequences corresponding to one or more codebooks, the feature sequence consisting of zero elements and 1 element
- the zero element indicates that all codewords in the corresponding codebook have zero modulation symbols at corresponding positions of the zero element
- the 1 element indicates that all codewords in the corresponding codebook are at corresponding positions of the one element.
- the modulation symbols are not all zero modulation symbols or all non-zero modulation symbols;
- the codebook indication information is determined, where the codebook indication information includes first feature matrix information, first feature sequence information, and second indication information, where the first feature matrix information is used to indicate the first feature matrix, The first feature sequence information is used to indicate the first feature sequence in the first feature matrix, and the second indication information is used to indicate the first codebook in the one or more codebooks corresponding to the first feature sequence, The second indication information is further used to indicate the one or more second feature sequences in the first feature matrix, and the one or more of the one or more codebooks corresponding to the one or more second feature sequences A second codebook.
- the network device and the terminal device may store a pre-designed codebook, where each codebook may be divided into one or more codebook sets, and each codebook set is composed of one or more codes.
- each codebook corresponds to one modulation order
- any two codebooks in the same codebook set such as codebook a and codebook b, have the following characteristics: codeword and codebook b in codebook a
- the codeword in the code has the same total number of modulation symbols; the modulation symbols for all codewords in codebook a are zero modulation symbol positions, and the modulation symbols of all codewords in codebook b are also at this position Zero modulation symbol. That is, the codebook set satisfies that the codewords in the same codebook set have the same total number of modulation symbols, and any two codebooks in the same codebook set have the same modulation symbol for all codewords.
- each codebook set will correspond one-to-one to one feature sequence of one feature matrix.
- the correspondence is determined by: if the codebook in the codebook set has a corresponding relationship with a feature sequence of a feature matrix, that is, the two bars described above are satisfied.
- the codebook set to which the codebook belongs has a one-to-one correspondence with the feature sequence of the feature matrix, that is, the correspondence between the feature sequence and the codebook can be determined by the following two conditions:
- the codeword in the codebook has the same total number of modulation symbols as the total number of elements of the corresponding feature sequence
- At least one codeword can be found in the corresponding codebook, such that the modulation symbol of the codeword at the 1-element position is not a zero modulation symbol;
- a zero element the modulation symbols of all codewords in the corresponding codebook at the corresponding position of the zero element are all zero modulation symbols.
- the network device and the terminal device may store a pre-designed feature matrix corresponding to the codebook cluster and a feature sequence corresponding to the codebook set.
- the network device allocates, in a codebook cluster corresponding to the same feature matrix, a first codebook used for transmitting the first downlink data stream, and one or a second used to send the second downlink data stream. Multiple second codebooks.
- the network device determines, by the first code sequence to which the first codebook belongs, one or more of the one or more second codebooks a second feature sequence, and a first feature matrix to which the first feature sequence and the one or more second feature sequences belong.
- the network device may determine that the codebook indication information used to indicate the first codebook and the one or more second codebooks includes first feature matrix information, first feature sequence information, and second indication information.
- the codebook indication information may be composed of three logical information segments, where the logical information segment 1 may carry the first feature matrix information, and is used to instruct the terminal device to send the first downlink data stream and the second downlink data stream.
- the first feature matrix is used; the logical information segment 2 can carry the first feature sequence information, and is used to indicate that the terminal device sends the first feature sequence in the first feature matrix used by the first downlink data stream; the logical information segment 3 can And carrying the second indication information, where the second indication information is used to indicate the first codebook in the one or more codebooks corresponding to the first feature sequence, where the second indication information is further used to indicate the first feature matrix.
- each logical information segment of the codebook indication information may be continuously or non-continuously appearing in the instruction in which the codebook indication information is located in any one of the sequential manners. Not limited.
- the terminal device can learn, according to the logical information segment 1 therein, which feature matrix pair the network device will use.
- the codebook in the one or more codebooks is to send the first downlink data stream and the second downlink data stream, that is, because the codebook cluster including one or more codebooks has a one-to-one correspondence with the feature matrix, the terminal device According to the one-to-one correspondence, the codebook in the codebook cluster used by the network device can be used to send the first downlink data stream and the second downlink data stream.
- the terminal device can learn that the network device adopts logic.
- the codebook in one or more codebooks corresponding to which feature sequence in the feature matrix indicated by the information segment 1 transmits the first downlink data stream that is, because the codebook set and the feature sequence including one or more codebooks have According to the one-to-one correspondence, the terminal device can learn, by using the feature sequence indicated by the logical information segment 2, which codebook set in the codebook is used by the network device to send the first downlink data stream; further, similarly The terminal device can learn, according to the logical information segment 3 therein, that the network device uses one or more codebooks corresponding to the feature sequence indicated by the logical information segment 2 The codebooks send the first downlink data stream. In addition, the terminal device can also learn which feature sequences in the feature matrix indicated by the logical information segment 1 and which codes in the one or more codebooks corresponding to the feature sequences are used by the network device. The second downlink data stream is sent.
- the information exchange between the network device and the terminal device enables the terminal device to determine the codebook used by all the data streams carried on the same time-frequency resource, so that the network device and the terminal device can perform downlink based on the codebook.
- the transmission of data can effectively improve the network capacity of the system, including increasing the number of accessible users and spectrum efficiency of the system.
- the network device may indicate the first codebook in the one or more codebooks corresponding to the first feature sequence to the terminal device in multiple manners, and indicate the first feature matrix to the terminal device.
- the one or more second feature sequences and the one or more second codebooks in the one or more codebooks corresponding to the one or more second feature sequences are separately described below.
- the second indication information includes: third codebook information, second feature sequence information, and fourth codebook information, where the third codebook information is used to indicate the first The first codebook in the one or more codebooks corresponding to the feature sequence, the second feature sequence information is used to indicate the one or more second feature sequences in the first feature matrix, the fourth codebook information And the one or more second codebooks in the one or more codebooks corresponding to the one or more second feature sequences.
- the logical information segment 3 carrying the second indication information may further include three logical information sub-sections, namely, logical information sub-segment 1, logical information sub-segment 2, and logical information sub- a segment 3, wherein the logical information sub-segment 1 can carry the third codebook information, and is used to indicate the first codebook in the one or more codebooks corresponding to the first feature sequence; logic information The sub-segment 2 may carry the second feature sequence information for indicating the one or more second feature sequences in the first feature matrix; the logical information sub-segment 3 may carry the fourth codebook information for indicating the one or The one or more second codebooks of the one or more codebooks corresponding to the plurality of second feature sequences.
- the logical information subsection 1 and the logical information subsection 3 may also be The codebook in one or more codebooks corresponding to the feature sequence used by the downlink data stream is indicated by indicating the modulation order; accordingly, the terminal device can learn from the logical information subsection 1 and the logical information subsection 3 The modulation order corresponding to the downlink data stream sent by the network device, so that the codebook corresponding to the modulation order in one or more codebooks corresponding to the feature sequence can be determined.
- the third codebook information includes modulation order information of the first codebook, wherein modulation of each codebook in one or more codebooks corresponding to the first feature sequence
- the fourth codebook information includes modulation order information of each second codebook, wherein each of the one or more codebooks corresponding to each second feature sequence has a modulation order The number is different.
- the embodiment of the present invention only takes the second indication information including the third codebook information, the second feature sequence information, and the fourth codebook information as an example, but the present invention is not limited thereto.
- the third codebook information and the fourth codebook information may include only the modulation order information of the codebook.
- the second indication information may only include the second feature sequence information; for example, when the network device uses the first codebook and one When the plurality of second codebooks all correspond to the same feature sequence, the first indication information may include only the third codebook information and the fourth codebook information.
- the information exchange between the network device and the terminal device enables the terminal device to determine the codebook used by all the data streams carried on the same time-frequency resource, so that the network device and the terminal device can perform downlink based on the codebook.
- the transmission of data can effectively improve the network capacity of the system, including increasing the number of accessible users and spectrum efficiency of the system.
- the second indication information includes M sets of bit string information corresponding to each feature sequence in the first feature matrix, and each set of bit string information is used to indicate corresponding features. Whether the sequence belongs to the first feature sequence or the one or more second feature sequences, when the feature sequence corresponding to the each group of bit string information belongs to the first feature sequence or the one or more second feature sequences, Each set of bit string information is further used to indicate the first codebook or the one or more second codebooks in the one or more codebooks corresponding to the corresponding feature sequence, where M is the first The number of feature sequences included in a feature matrix.
- the logical information segment 3 may also pass the manner indicating the modulation order.
- the terminal device can learn the modulation order corresponding to the downlink data stream sent by the network device according to the logical information segment 3, so as to be able to determine one or more codebooks corresponding to the feature sequence.
- the codebook indication information includes the first feature matrix information, the first feature sequence information, and the second indication information as an example for description.
- the logical information segment 3 may include K 2 sets of bit string information, and each set of bit string information may include L 3 bits, indicating whether the feature sequence corresponding to the set of bit string information belongs to the first feature sequence or the one Or a plurality of second feature sequences, and when the feature sequence corresponding to the set of bit string information belongs to the first feature sequence or the one or more second feature sequences, the set of bit string information is further used to indicate corresponding features The first codebook or the one or more second codebooks in the one or more codebooks corresponding to the sequence.
- the feature sequence corresponding to the k-th bit segment may be used to use the feature sequence corresponding to the k-th bit segment; for example, the network device may use all 1 bit to indicate that the k-th is not used and the k-th a sequence of features corresponding to the group bit segment.
- the network device may use a non-full 1-bit representation to use the feature sequence corresponding to the k-th bit segment; when the network device uses the feature sequence corresponding to the k-th bit segment
- the kth group of bit segments may further indicate which codebook corresponding to the corresponding feature sequence is used by the network device, for example, the kth group of bits
- the segment may include modulation order information of the codebook employed.
- the first indication information may include M groups of bits corresponding to each feature sequence in the first feature matrix.
- the string information, each group of bit string information may be used only to indicate the first codebook or the one or more second codebooks in the one or more codebooks corresponding to the corresponding feature sequence, where M is the first
- the number of codebook sets included in a codebook cluster that is, each group of bit string information may be used only to indicate which codebook corresponding to the corresponding feature sequence is used for transmission of the downlink data stream.
- the logical information segment 3 may be a bit bitmap composed of L 3 bits. Indicates the modulation order used to indicate the downlink data stream sent by the network device.
- the second indication information includes modulation order information of the first codebook and the one or more second codebooks, where each of the feature sequences corresponds to one or The modulation order of each of the plurality of codebooks is different.
- each logical information segment indicates an index value
- the index value indicated by the segment uniquely determines the corresponding feature matrix, feature sequence, and codebook through a pre-established correlation index relationship.
- the network device and the terminal device may pre-store the feature matrix and the codebook by using various methods, but the following two conditions must be met: First, the network device and the terminal device may be based on the stored features. The matrix and the codebook know the number of resource units or subcarriers or resource particles included in one coding unit; second, the network device and the terminal device can be stored according to The feature matrix and the codebook know which non-zero modulation symbols the terminal device will transmit on which resource elements or subcarriers or resource particles of a coding unit.
- the corresponding feature matrix can be expressed as:
- modulation symbols of the corresponding codewords are stored in the order of the 1 element in the feature sequence described above.
- the codebook used by the variable node 3 in FIG. 2 is stored as:
- the network device and the terminal device can learn, according to the feature matrix, the number of resource units or subcarriers or resource particles included in one coding unit, that is, the number of rows of the feature matrix; according to the feature matrix
- the feature sequence and the codebook in one or more codebooks corresponding to the feature sequence and know which resource units or subcarriers or resource particles of one coding unit to transmit zero modulation symbols and non-bits when the terminal device uses the feature sequence Zero modulation symbol.
- the embodiment of the present invention is only described by taking the foregoing solution as an example, but the present invention is not limited thereto, and other methods may be used to indicate the corresponding corresponding to the first feature sequence.
- the method for transmitting the indication information in the embodiment of the present invention determines, by using the network device, the first codebook used to send the first downlink data stream to the terminal device in one or more codebooks, and determines to send the second downlink data stream.
- One or more second codebooks used wherein the second downlink data stream is one or more of the time-frequency resources used by the first downlink data stream except the first downlink data stream Downstream data streams, and determining codebook indication information for indicating the first codebook and the one or more second codebooks, and transmitting the codebook indication information to the terminal device, so that the terminal device can determine the same time a codebook used by all data streams carried on the frequency resource, and capable of decoding the first data stream sent by the network device to the terminal device according to the codebooks, whereby the network device and the terminal device can perform downlink data based on the codebook Transmission, and can effectively improve the network capacity of the system, including improving the number of accessible users and spectrum efficiency of the system.
- the network device may send the codebook indication information to the terminal device in multiple manners.
- the network device may indicate the terminal device in a dynamic or semi-static manner through a downlink control channel; the network device may also pass The data channel indicates the terminal device in a semi-static manner; the network device can also indicate the terminal device in a static manner through a broadcast channel or a data channel.
- the sending the codebook indication information to the terminal device includes: sending, to the terminal device, a downlink scheduling message, a dedicated high-layer control signaling, or a system broadcast message, the downlink scheduling message, the The dedicated high layer control signaling and the system broadcast message include the codebook indication information.
- the network device may allocate or specify a codebook for the downlink data flow of the terminal device according to the channel state information periodically or aperiodically reported by the device, and other system resources and parameters.
- a codebook for the downlink data flow of the terminal device may be used as downlink control information (Downlink Control Information, referred to as "DCI"), and is carried in the downlink scheduling.
- DCI Downlink Control Information
- the terminal device may use the codebook indicated by the downlink scheduling message, and other system resources and parameters, to receive the first downlink data stream by using a non-orthogonal multiple access technology.
- the codebook indication information used to indicate the first codebook can be used as the downlink control signal.
- DCI Downlink Control Information
- LTE Long Term Evolution
- PDCCH Physical Downlink Control Channel
- the codebook indication information used to indicate the first codebook may be carried in a Radio Resource Control (RRC) connection establishment message or an RRC connection reconfiguration message, and pass the downlink physical data channel.
- RRC Radio Resource Control
- the physical downlink shared channel (Physical Downlink Shared Channel, referred to as "PDSCH") in the LTE system is sent to the terminal device in a semi-static manner.
- PDSCH Physical Downlink Shared Channel
- the dedicated high layer control signaling includes a radio resource control RRC connection setup message and an RRC connection reconfiguration message. It should be understood that the embodiment of the present invention only uses the dedicated high-layer control signaling, including the RRC connection setup message and the RRC connection reconfiguration message, as an example, but the present invention is not limited thereto, and other dedicated high-layer control signaling may be used to the terminal device. Send the codebook indication message.
- the codebook indication information used to indicate the first codebook may be carried in a system broadcast message, such as a Master Information Block (MIB) or a System Information Block in an LTE system. , referred to as "SIB” for short, through a downlink physical broadcast channel or a physical data channel, such as a physical broadcast channel (Physical Broadcast Channel, referred to as "PBCH”) in the LTE system or a physical downlink shared channel PDSCH, in a static manner Issued to the terminal device.
- MIB Master Information Block
- SIB System Information Block
- PBCH Physical Broadcast Channel
- the network device sends the codebook indication information to the terminal device by using at least one of a bit string mode and a table mode.
- the codebook indication information is bit string information.
- the logical information segment in the codebook indication information may have multiple implementation methods, including but not limited to the following:
- Method 1 The logical information segment uses an independent bit string or bit bitmap to implement the information indication function.
- the information indicated by a certain logical information segment in the codebook indication information has at most K possibilities (for example, a total of K codebook clusters).
- ceil ( ⁇ ) means round up.
- An value of the bit bitmap represents an index value of the indicated information, and the terminal device can determine, according to the index value represented by the bit bitmap, a pre-established index relationship, a possibility that uniquely corresponds to the index value. .
- the code information indication information includes the feature matrix information, the feature sequence information, and the codebook information as an example.
- the three logical information segments in the codebook indication information are all implemented by independent bit strings or bit bitmaps, but in reality, all logical information segments are not required to use the same Method to realize. Therefore, in actual application, a part of the logical information segment may use an independent bit bitmap to implement its information indicating function, and other logical information segments may be implemented in other manners, and the embodiment of the present invention is not limited thereto.
- Method 2 Merging indication of multiple logical information segments
- the merge indication of the logical information segments can generally be implemented in the form of a table.
- the form can have The form is as follows: the table includes multiple columns, one of which is a comprehensive index column, and each index value corresponds to a combination of information indicated by multiple logical information segments; except for the comprehensive index column, each of the other columns in the table may correspond to one
- the logical information segment is used to indicate a possibility of the information indicated by the corresponding logical information segment, and the value may be an index value or a specific content indicated, such as a codebook cluster, a codebook set, a codebook, and a feature matrix. , feature sequences, etc.
- the network device and the terminal device can establish a correspondence between the comprehensive index value and all possible combinations of information indicated by the plurality of logical information segments.
- the network device sends a comprehensive index value to the terminal device by using the codebook indication information.
- the terminal device can obtain a possibility that the information indicated by each logical information segment uniquely corresponds to the comprehensive index value according to the comprehensive index value.
- the codebook indication information includes the first codebook cluster information, the first codebook set information, and the first indication information as an example.
- a form of the table for implementing the codebook indication information is as shown in Table 1:
- the merge indication table of multiple logical information segments may be composed of 4 columns, the first column is a comprehensive index column (referred to as an index column in this example), and the other 3 columns respectively correspond to the codebook indication information.
- 3 logical pieces of information m is an index value
- i, j, k may be an index value of each logical information segment indication information, or may be specific content of the corresponding information, for example, a codebook stored according to the above-mentioned form, and the formed code. This set and codebook clusters, etc.
- the table may have the following form: the table includes a plurality of columns, wherein one column is a comprehensive index column, and each index value represents a combination of the contents indicated by the other columns; in addition to the comprehensive index column, at least one column in the table corresponds to the implementation of the present invention.
- a logical information segment in the codebook indication information represents a possibility of the content indicated by the corresponding logical information segment, and the value may be an index value or a specific content indicated, such as a feature matrix and a feature sequence. , codebook, modulation order, etc.
- At least one of the other columns of the table corresponds to an information segment having other information (different from the information indicated by the logical information segment in the codebook indication information in the embodiment of the present invention) indicating a function, such as an information segment indicating a transport block size, Indicates the information segment of the redundancy version, and so on.
- the network device and the terminal device can establish all possible combinations of the information indicated by the logical information segment in the codebook indication information and the information segment indicated by the information segment having the other information indicating function in the comprehensive index.
- the network device sends the comprehensive index value to the terminal device by using the codebook indication information.
- the terminal device can learn, according to the comprehensive index value, that the information indicated by the logical information segment in the codebook indication information in the embodiment of the present invention is unique. A corresponding possibility, and a possibility that the information indicated by the information segment having other information indicating functions uniquely corresponds.
- the codebook indication information includes the first codebook cluster information, the first codebook set information, and the first indication information as an example.
- the network device uses the same modulation order to send different downlink data flows by default, the network device uses A form of the table for implementing the codebook indication information is as shown in Table 2:
- the merge indication table includes a total of three columns, wherein the first column is a comprehensive index column; the second column is a transport block index column for indicating a transport block size; and the third column is for indicating a codebook indication information.
- the logical information segments in the codebook indication information are all logical concepts. If a message or instruction in which the codebook indication information is located, such as a downlink scheduling message, an RRC connection setup message, an RRC connection reconfiguration message, a broadcast message, etc., an information segment or a bit string implements information of a certain logical information segment in the foregoing embodiment. Indicating the function, it should be understood or considered that the information segment or bit string is an implementation of the corresponding logical information segment in the above embodiment.
- the information segment or bit string herein may be any part of all the bits used to compose the message or instruction in which the codebook indication information is located, including the information bit and the check digit, for example, the radio network temporary identifier of the terminal device (Radio Network Temporary Identity) , referred to as "RNTI”), the Cyclic Redundancy Check (“CRC”) bit, etc.
- RNTI Radio Network Temporary Identity
- CRC Cyclic Redundancy Check
- the network device sends the following information segments for each downlink transmission block to be received by the terminal device (the transport block is equivalent to the data or data stream in the embodiment of the present invention) to indicate the corresponding information by using a downlink scheduling message:
- modulation coding scheme indication information segment 5 bits for indicating the transport block size and modulation order
- - new data indication information segment 1 bit, used to indicate whether the transport block is retransmitted data or new data
- Redundancy version indication information segment 2 bits, used to indicate the redundancy version number.
- the one or more logical information segments described in the embodiment of the present invention are also required to be delivered, and the information segment is sent to each of the transport blocks of the terminal device.
- An indication of the codebook indication information is performed.
- the network device may send the following information segment to the transport block of the terminal device by using the downlink scheduling message to indicate the corresponding information. :
- L 1 bit used to indicate the codebook cluster used for transmitting the transport block
- - codebook set indication information segment L 2 bits, used to indicate the codebook set used to transmit the transport block;
- a modulation coding scheme and a redundancy version information segment 5 bits indicating the transport block size, modulation order and redundancy version number;
- New data indication information segment 1 bit, used to indicate whether the transport block is retransmitted data or new data.
- the code block in the codebook cluster to be used may be sent according to the corresponding codebook cluster indication information segment; the corresponding codebook set may be used according to the corresponding codebook set. Instructing the information segment to know which codebook set in the codebook cluster is to be used to transmit the transport block; the modulation order used for transmitting the transport block can be known according to the modulation and coding scheme and the redundancy version information segment, and then according to the modulation And a correspondence between the order and the codebook in the codebook set, determining a codebook corresponding to the modulation order, and transmitting the transport block by using the codebook.
- the codebook indication information includes first feature matrix information, first feature sequence information, and second indication information
- the network device may send the following information segment to the transport block of the terminal device by using a downlink scheduling message to indicate the corresponding information:
- L 1 bit used to indicate that the terminal device receives the feature matrix used by the transport block
- a feature sequence indication information segment L 2 bits, used to indicate that the terminal device receives the first feature sequence used by the transport block;
- modulation coding scheme indication information segment 5 bits for indicating the transport block size and modulation order
- - new data indication information segment 1 bit, used to indicate whether the transport block is retransmitted data or new data
- Redundancy version indication information segment 2 bits, used to indicate the redundancy version number.
- the terminal device After receiving and decoding the downlink scheduling message, the terminal device learns, according to the corresponding feature matrix indication information segment, the first feature matrix used for receiving the transport block according to the corresponding modulation block;
- the scheme indication information segment learns the modulation order used by the network device to transmit all the transport blocks including the transport block of the terminal device, and then according to the one-to-one correspondence between the feature sequence and the codebook set, and the modulation order and the codebook set.
- the terminal learns the first feature sequence corresponding to the transport block of the terminal device according to the corresponding feature sequence indication information segment, and further learns the corresponding first codebook, so that the terminal device can be based on the first codebook and the one or more The second codebook correctly receives the transport block of the terminal device.
- the codebook is a sparse code multiple access SCMA codebook.
- the number of zero modulation symbols in the codeword included in the codebook is greater than or equal to the number of non-zero modulation symbols.
- the network device further Other pieces of information may be sent to indicate codebook indication information.
- the method for transmitting the indication information in the embodiment of the present invention determines, by using the network device, the first codebook used to send the first downlink data stream to the terminal device in one or more codebooks, and determines to send the second downlink data stream.
- One or more second codebooks used wherein the second downlink data stream is one or more of the time-frequency resources used by the first downlink data stream except the first downlink data stream Downstream data streams, and determining codebook indication information for indicating the first codebook and the one or more second codebooks, and transmitting the codebook indication information to the terminal device, so that the terminal device can determine the same time a codebook used by all data streams carried on the frequency resource, and capable of decoding the first data stream sent by the network device to the terminal device according to the codebooks, whereby the network device and the terminal device can perform downlink data based on the codebook Transmission and can effectively increase the network capacity of the system.
- the method 300 for transmitting indication information may be, for example, The terminal device in the communication system is executed, for example, a user device. As shown in FIG. 6, the method 300 includes:
- S310. Receive codebook indication information that is sent by the network device, where the codebook indication information is used to indicate that the network device sends the first codebook used by the first downlink data stream, and the network device sends the second downlink data stream. Or a plurality of second codebooks, where the second downlink data stream is one or more downlink data carried on the time-frequency resource used by the first downlink data stream except the first downlink data stream. a stream, the codebook being composed of two or more codewords, the codeword being a multi-dimensional complex vector for indicating a mapping relationship between data and at least two modulation symbols, the at least two modulation symbols including at least one a zero modulation symbol and at least one non-zero modulation symbol;
- S320 Determine the first codebook and the one or more second codebooks according to the codebook indication information.
- S330 Decode the first downlink data stream sent by the network device according to the first codebook and the one or more second codebooks.
- the network device allocates or specifies a codebook for one or more downlink data streams to be received of each terminal device; in order to enable the terminal device to The downlink data stream sent by the terminal device is correctly received or decoded.
- the terminal device not only needs to know the codebook used by the network device to send the downlink data stream, but also needs to know the time-frequency resource used by the network device to send the downlink data stream.
- One or more codebooks used to send other downstream data streams are examples of codebook for the network device to send the downlink data stream.
- the network device may determine the first codebook and the one or more second codebooks, and determine codebook indication information for indicating the first codebook and the one or more second codebooks, the first The codebook is a codebook used by the network device to send the first downlink data stream to the terminal device, where the one or more second codebooks are one or more used by the network device to send the second downlink data stream to other terminal devices.
- the codebook indication information may be sent to the terminal device, where the codebook indication information is used to indicate that the terminal device receives the first codebook and the one or more second codebooks used by the first downlink data.
- the terminal device may determine, according to the codebook indication information, a first codebook used by the network device to send the first downlink data stream, and the network device uses the downlink data stream to send the downlink data stream. Transmitting one or more second codebooks used by other downlink data streams on the same time-frequency resource, whereby the terminal device can send the network code device according to the first codebook and the one or more second codebooks A downlink data is received or decoded.
- the information exchange with the terminal device enables the terminal device to determine the codebook used by all the data streams carried on the same time-frequency resource, so that the network device and the terminal device can perform downlink data transmission based on the codebook, and Can effectively increase the network capacity of the system.
- the method for transmitting the indication information in the embodiment of the present invention determines, by using the network device, the first codebook used to send the first downlink data stream to the terminal device in one or more codebooks, and determines to send the second downlink data stream.
- One or more second codebooks used wherein the second downlink data stream is one or more of the time-frequency resources used by the first downlink data stream except the first downlink data stream Downstream data streams, and determining codebook indication information for indicating the first codebook and the one or more second codebooks, and transmitting the codebook indication information to the terminal device, so that the terminal device can determine the same time a codebook used by all data streams carried on the frequency resource, and capable of decoding the first data stream sent by the network device to the terminal device according to the codebooks, whereby the network device and the terminal device can perform downlink data based on the codebook Transmission, and can effectively improve the network capacity of the system, including improving the number of accessible users and spectrum efficiency of the system.
- the non-orthogonal multiple access technology transmits a plurality of different data streams on the same resource unit by using the codebook, that is, multiple different data streams multiplex the same resource unit, where different data
- the codebooks used by the streams are different, so as to achieve the purpose of improving the utilization of resources, the data streams may be from the same terminal device or from different terminal devices.
- the non-orthogonal multiple access technology directly maps the data in the data stream to a codeword in the codebook, that is, a multi-dimensional complex vector, to realize extended transmission of data on multiple resource units. It may be binary bit data or multi-dimensional data, and the resource unit may be a resource unit of a time domain, a frequency domain, a spatial domain, a time-frequency domain, a spatio-temporal domain or a time-frequency spatial domain.
- the codebook is composed of two or more codewords
- the codeword is a multi-dimensional complex vector for indicating a mapping relationship between data and at least two modulation symbols, the at least two modulations.
- the symbol includes at least one zero modulation symbol and at least one non-zero modulation symbol;
- each feature matrix is composed of two or more feature sequences, each feature matrix corresponding to one or more codebooks, and each feature sequence also corresponds to one Or a plurality of codebooks, the feature sequence is composed of a zero element and an element, wherein the zero element indicates that all codewords in the corresponding codebook have zero modulation symbols at corresponding positions of the zero element, and the one element represents The modulation symbols of all codewords in the corresponding codebook at the corresponding positions of the 1 element are not all zero modulation symbols or all non-zero modulation symbols.
- multiple codebooks may be divided into one or more codebook clusters, and each codebook cluster may include one or more codebooks, for any two codebooks in the same codebook cluster,
- code The present a and the codebook b have the following characteristics: the codeword in the codebook a has the same total number of modulation symbols as the codeword in the codebook b. Therefore, the codebook in the codebook cluster satisfies the same total number of modulation symbols that all codewords have, that is, the lengths of all the codewords are the same, that is, the number of resource units multiplexed by the data stream is the same.
- multiple codebooks may also be divided into one or more codebook sets, and each codebook set may include one or more codebooks, for any two codebooks in the same codebook set,
- the codebook c and the codebook d have the following features: (1) the codeword in the codebook c has the same total number of modulation symbols as the codeword in the codebook d; (2) for all codes in the codebook c The modulation symbols of the words are all zero modulation symbols, and the modulation symbols of all code words in codebook d are also zero modulation symbols at this position.
- each codebook cluster includes one or more codebook sets, each codebook set includes one or more codebooks, and each codebook is composed of two or more codewords.
- each codebook cluster satisfies that the codewords in the same codebook cluster have the same total number of modulation symbols, and each codebook set satisfies that the codewords in the same codebook set have the same total number of modulation symbols, and the same codebook is concentrated. Any two codebooks have the same modulation symbol for all codewords with the same position as the zero modulation symbol.
- the codebook can be directly represented and stored, for example, directly storing each codeword in the codebook or codebook described above, or only the corresponding feature sequence in the codeword.
- the element is a modulation symbol at the position of 1 element, and the like. Therefore, when applying the present invention, it is required to assume that both the network device and the terminal device in the non-orthogonal multiple access system can store some or all of the following contents pre-designed:
- One or more feature matrices where r n,m ⁇ 0,1 ⁇ ,1 ⁇ n ⁇ N,1 ⁇ m ⁇ M, M and N are positive integers greater than 1, where M can represent the number of multiplexed data streams, and N can represent The number of resource units contained in a coding unit can also be understood as the length of the codeword;
- Q m may represent a modulation order corresponding to the codebook, and each codebook may correspond to a modulation order, where N is a positive integer greater than 1, and may be represented as a coding unit
- N is a positive integer greater than 1
- the number of resource units can also be understood as the length of the codeword.
- the codebook indication information includes first codebook cluster information, first codebook set information, and first indication information, where the first codebook cluster The information is used to indicate a first codebook set, where the first codebook set information is used to indicate a first codebook set in the first codebook cluster, where the first indication information is used to indicate a first codebook set a codebook, the first indication information is further used to indicate one or more second codebook sets in the first codebook cluster, and the one or more seconds in the one or more second codebook sets Codebook
- the determining the first codebook and the one or more second codebooks according to the codebook indication information includes:
- each codebook cluster includes at least one codebook set, and each of the codebook sets includes at least one
- each codebook cluster satisfies that the codewords in the same codebook cluster have the same total number of modulation symbols, and the codebook set satisfies any two codebooks in the same codebook set, and the modulation symbols for all codewords are zero modulation.
- the positions of the symbols are the same.
- the network device and the terminal device may store a pre-designed codebook, where each codebook may be divided into one or more codebook sets, and each codebook set is composed of one or more codes.
- each codebook corresponds to one modulation order
- any two codebooks in the same codebook set such as codebook a and codebook b, have the following characteristics: codeword and codebook b in codebook a
- the codeword in the code has the same total number of modulation symbols; the modulation symbols for all codewords in codebook a are zero modulation symbol positions, and the modulation symbols of all codewords in codebook b are also at this position Zero modulation symbol. That is, the codebook set satisfies that the codewords in the same codebook set have the same total number of modulation symbols, and any two codebooks in the same codebook set have the same modulation symbol for all codewords.
- the one or more codebook sets divided according to the above manner may be further divided into one or more codebook clusters, each codebook cluster being composed of one or more codebook sets, and any two codes in the same codebook cluster.
- the set such as the codebook set A and the codebook set B, has the following feature: the codeword in the codebook set A and the codeword in the codebook set B have the same total number of modulation symbols, that is, all codewords have the same length That is, the number of resource units multiplexed by the data stream is the same. That is, the codebook cluster satisfies that the codewords in the same codebook cluster have the same total number of modulation symbols.
- the codebook indication information sent by the terminal device to the network device may include the first codebook cluster information, the first codebook set information, and the first indication information.
- the codebook indication information may be composed of three logical information segments, where the logical information segment 1 may carry the first codebook cluster information, and is used to instruct the terminal device to send the first downlink data stream and the second downlink data stream.
- the first codebook cluster used; the logical information segment 2 may carry the first codebook set information, and is used to instruct the terminal device to send the first codebook set in the first codebook cluster used by the first downlink data stream;
- the logical information segment 3 may be configured to carry the first indication information, where the first indication information is used to indicate the first codebook in the first codebook set, where the first indication information is further used to indicate the One or more second codebook sets, and the one or more second codebooks in the one or more second codebook sets.
- each logical information segment of the codebook indication information may be continuously or non-continuously appearing in the instruction in which the codebook indication information is located in any one of the sequential manners. Not limited.
- the terminal device can learn, according to the logical information segment 1 therein, which codebook in the codebook cluster the network device uses to send the first downlink data stream and the first
- the second downlink data stream is obtained by the terminal device according to the logical information segment 2 therein, and the network device uses the codebook in the codebook cluster indicated by the logical information segment 1 to send the first downlink data stream; the terminal device is configured according to In the logical information segment 3, it can be known which codebook in the codebook set indicated by the logical information segment 2 of the network device sends the first downlink data stream, and further, the terminal device can also learn that the network device uses the code indicated by the logical information segment 1 Which codebook sets in the cluster and which codebooks in the codebook set send the second downlink data stream.
- the information exchange between the network device and the terminal device enables the terminal device to determine the codebook used by all the data streams carried on the same time-frequency resource, so that the network device and the terminal device can perform downlink based on the codebook.
- the transmission of data can effectively improve the network capacity of the system, including increasing the number of accessible users and spectrum efficiency of the system.
- the terminal device may receive the network device indicating by using multiple manners.
- the first codebook in the first codebook set, the one or more second codebook sets in the first codebook cluster, and the one or more seconds in the one or more second codebook sets The codebook will be described separately below.
- the first indication information includes: first codebook information, second codebook set information, and second codebook information, where the first codebook information is used to indicate the first The first codebook in a codebook set, the second codebook information is used to indicate the one or more second codebook sets in the first codebook cluster, and the second codebook information is used to indicate the The one or more second codebooks in the one or more second codebook sets.
- the logical information segment 3 carrying the first indication information may further include three logical information sub-sections, namely, logical information sub-segment 1, logical information sub-segment 2, and logical information sub-
- the logical information sub-segment 1 can carry the first codebook information for indicating the first codebook in the first codebook set
- the logical information sub-segment 2 can carry the second codebook set information, Instructing the one or more second codebook sets in the first codebook cluster
- the logical information subsection 3 may carry second codebook information for indicating the one of the one or more second codebook sets Or multiple second codebooks.
- the logical information sub-segment 1 and the logical information sub-segment 3 may also indicate the downlink by indicating the modulation order.
- the codebook in the codebook set used by the data stream; correspondingly, the terminal device can learn the modulation order corresponding to the downlink data stream sent by the network device according to the logical information subsection 1 and the logical information subsection 3, thereby being able to determine the codebook set A codebook that corresponds one-to-one with the modulation order.
- the first codebook information includes modulation order information of the first codebook, where the modulation order of each codebook in the first codebook set is different;
- the second codebook information includes each second The modulation order information of the codebook, wherein the modulation order of each codebook in the one or more second codebook sets is different.
- the embodiment of the present invention only takes the first indication information including the first codebook information, the second codebook set information, and the second codebook information as an example, but the present invention is not limited thereto.
- the first codebook information and the second codebook information may include only the modulation order information of the codebook.
- the first indication information may only include the second codebook set information; for example, when the network device uses the first codebook and When the one or more second codebooks belong to the same codebook set, the first indication information may include only the first codebook information and the second codebook information; for example, when the network device and the terminal device both adopt the code by default. In this episode When the codebook of the same fixed number is used, the first indication information may include only the second codebook set information and the information for indicating the fixed number of the codebook.
- the information exchange between the network device and the terminal device enables the terminal device to determine the codebook used by all the data streams carried on the same time-frequency resource, so that the network device and the terminal device can perform downlink based on the codebook.
- the transmission of data can effectively improve the network capacity of the system, including increasing the number of accessible users and spectrum efficiency of the system.
- the first indication information includes M sets of bit string information corresponding to each codebook set in the first codebook cluster, and each set of bit string information is used to indicate corresponding Whether the codebook set belongs to the first codebook set or the one or more second codebook sets, and the codebook set corresponding to the each group of bitstring information belongs to the first codebook set or the one or more
- the group of bit string information is further used to indicate the first codebook or the one or more second codebooks in the corresponding codebook set, where M is the first codebook cluster includes The number of codebook sets.
- the logical information segment 3 may also indicate the codebook used by the downlink data stream by indicating the modulation order.
- the centralized codebook can be used to determine the modulation order corresponding to the downlink data stream sent by the network device according to the logical information segment 3, so that the codebook in the codebook set and the modulation order can be determined. That is, the first indication information includes modulation order information of the first codebook and the one or more second codebooks, wherein each of the codebooks in the codebook set has different modulation orders.
- the first indication information includes modulation order information of the first codebook and the one or more second codebooks, where each of the codebook sets The codebook has different modulation orders.
- each logical information segment indicates an index value
- the corresponding codebook cluster, codebook set and codebook are uniquely determined by the pre-established correlation index relationship according to the index value indicated by the logical information segment.
- the network device and the terminal device may pre-store the codebook by using various methods, but the following two conditions must be met: First, the network device and the terminal device may learn one according to the stored codebook. The number of resource units or subcarriers or resource particles included in the coding unit; second, the network device and the terminal device can learn from the stored codebook that the terminal device will Which non-zero modulation symbols are transmitted on which resource elements or subcarriers or resource particles of a coding unit.
- a simple and straightforward method of satisfying the above storage conditions is to store the codebook in the form described above, including storing all zero modulation symbols and non-zero modulation symbols of the codeword:
- the codebook used by the variable node 3 in FIG. 2 can be stored as:
- the total number of zero modulation symbols and non-zero modulation symbols in the codeword is the number of resource units or subcarriers or resource particles included in one coding unit, and the position and value of the non-zero modulation symbol are It indicates that the terminal device will send a corresponding non-zero modulation symbol on the resource unit or subcarrier or resource particle corresponding to the location of one coding unit.
- the method for transmitting the indication information in the embodiment of the present invention determines, by using the network device, the first codebook used to send the first downlink data stream to the terminal device in one or more codebooks, and determines to send the second downlink data stream.
- the codebook indication information of the second codebook is sent to the terminal device, so that the terminal device can determine the codebook used by all the data streams carried on the same time-frequency resource, and can be based on the codebook pairs.
- the first data stream sent by the network device to the terminal device is decoded, so that the network device and the terminal device can perform downlink data transmission based on the codebook, and can effectively improve the network capacity of the system, including the accessible user of the system. Number and spectrum efficiency, etc.
- the feature sequence or the feature matrix since the feature sequence or the feature matrix has a corresponding relationship with the codebook, it may be used to indicate a codebook set or a codebook cluster including one or more codebooks, and thus, the embodiment of the present invention is also
- the code sequence indication information sent to the terminal device may be determined by using a feature sequence or a feature matrix. A method of determining codebook indication information using a feature sequence or a feature matrix will be described in detail below with reference to FIG.
- the codebook indication information includes first feature matrix information, first feature sequence information, and second indication information, where the first feature matrix information is used. And indicating a first feature matrix, where the first feature sequence information is used to indicate a first feature sequence in the first feature matrix, where the second indication information is used to indicate that the first feature sequence corresponds to one or more codebooks
- the first codebook is further configured to indicate one or more second feature sequences in the first feature matrix, and one or more codebooks corresponding to the one or more second feature sequences The one or more second codebooks;
- the determining the first codebook and the one or more second codebooks according to the codebook indication information includes:
- each feature matrix is composed of two or more feature sequences
- each The feature sequence corresponds to one or more codebooks
- the feature sequence is composed of a zero element and an element
- the zero element indicates that all codewords in the corresponding codebook have zero modulation symbols at corresponding positions of the zero element.
- a modulation symbol, the 1 element indicating that all codewords in the corresponding codebook have not all zero modulation symbols or all non-zero modulation symbols at corresponding positions of the 1 element.
- the network device and the terminal device may store a pre-designed codebook, where each codebook may be divided into one or more codebook sets, and each codebook set is composed of one or more codebooks.
- Each codebook is composed of one modulation order, and any two codebooks in the same codebook set, such as codebook a and codebook b, have the following characteristics: codewords and codes in codebook a
- the codeword in the present b has the same total number of modulation symbols; the modulation symbols for all the codewords in the codebook a are zero modulation symbol positions, and the modulation symbols of all the codewords in the codebook b are also at the position Both are zero modulation symbols. That is, the codebook set satisfies that the codewords in the same codebook set have the same total number of modulation symbols, and any two codebooks in the same codebook set have the same modulation symbol for all codewords.
- each codebook set will correspond one-to-one to one feature sequence of one feature matrix.
- the correspondence is determined by: if the codebook in the codebook set has a corresponding relationship with a feature sequence of a feature matrix, that is, the two conditions described above are satisfied, the codebook set to which the codebook belongs and the feature
- the characteristic sequence of the matrix corresponds one-to-one, that is, the correspondence between the feature sequence and the codebook can be determined by the following two conditions:
- the codeword in the codebook has the same total number of modulation symbols as the total number of elements of the corresponding feature sequence
- At least one codeword can be found in the corresponding codebook, such that the modulation symbol of the codeword at the 1-element position is not a zero modulation symbol;
- a zero element the modulation symbols of all codewords in the corresponding codebook at the corresponding position of the zero element are all zero modulation symbols.
- the network device and the terminal device may store a pre-designed feature matrix corresponding to the codebook cluster and a feature sequence corresponding to the codebook set.
- the terminal device receives the codebook indication information that is sent by the network device and is used to indicate the first codebook and the one or more second codebooks, and includes first feature matrix information and first feature sequence information. And second indication information.
- the codebook indication information may be composed of three logical information segments, where the logical information segment 1 may carry the first feature matrix information, and is used to instruct the terminal device to send the first downlink data stream and the second downlink data stream.
- the first feature matrix is used; the logical information segment 2 can carry the first feature sequence information, and is used to indicate that the terminal device sends the first feature sequence in the first feature matrix used by the first downlink data stream; the logical information segment 3 can And carrying the second indication information, where the second indication information is used to indicate the first codebook in the one or more codebooks corresponding to the first feature sequence, where the second indication information is further used to indicate the first feature matrix.
- each logical information segment of the codebook indication information may be continuously or non-continuously appearing in the instruction in which the codebook indication information is located in any one of the sequential manners. Not limited.
- the terminal device can learn, according to the logical information segment 1 therein, which code matrix in the one or more codebooks to which the network device is to be used.
- a downlink data stream and a second downlink data stream that is, because the codebook cluster including one or more codebooks has a one-to-one correspondence relationship with the feature matrix, the terminal device can learn which network device to use according to the one-to-one correspondence relationship
- the codebook in the codebook cluster sends the first downlink data stream and the second downlink data stream; according to the logical information segment 2, the terminal device can learn which feature sequence in the feature matrix indicated by the logical information segment 1 of the network device corresponds to
- the codebook in the one or more codebooks sends the first downlink data stream, that is, because the codebook set including one or more codebooks has a one-to-one correspondence with the feature sequence, the terminal device according to the one-to-one correspondence relationship,
- the first downlink data stream can be sent by using the codebook indicated by
- the information exchange between the network device and the terminal device enables the terminal device to determine the codebook used by all the data streams carried on the same time-frequency resource, so that the network device and the terminal device can perform downlink based on the codebook.
- the transmission of data can effectively improve the network capacity of the system, including increasing the number of accessible users and spectrum efficiency of the system.
- the terminal device may receive the first codebook in the first codebook set indicated by the network device in multiple manners, and the one or more second codebooks in the first codebook cluster And the one or more second codebooks in the one or more second codebook sets are described separately below.
- the second indication information includes: third codebook information, second feature sequence information, and fourth codebook information, where the third codebook information is used to indicate the first The first codebook in the one or more codebooks corresponding to the feature sequence, the second feature sequence information is used to indicate the one or more second feature sequences in the first feature matrix, the fourth codebook information Means to indicate the one or more of the one or more codebooks corresponding to the one or more second feature sequences Two yards.
- the logical information segment 3 carrying the second indication information may further include three logical information sub-sections, namely, logical information sub-segment 1, logical information sub-segment 2, and logical information sub-
- the logical information sub-segment 1 can carry the third codebook information, and is used to indicate the first codebook in the one or more codebooks corresponding to the first feature sequence
- the logical information sub-segment 2 can carry The second feature sequence information is used to indicate the one or more second feature sequences in the first feature matrix
- the logical information subsection 3 can carry fourth codebook information for indicating the one or more second features.
- the logical information subsection 1 and the logical information subsection 3 may also be The codebook in one or more codebooks corresponding to the feature sequence used by the downlink data stream is indicated by indicating the modulation order; accordingly, the terminal device can learn from the logical information subsection 1 and the logical information subsection 3 The modulation order corresponding to the downlink data stream sent by the network device, so that the codebook corresponding to the modulation order in one or more codebooks corresponding to the feature sequence can be determined.
- the third codebook information includes modulation order information of the first codebook, wherein modulation of each codebook in one or more codebooks corresponding to the first feature sequence
- the fourth codebook information includes modulation order information of each second codebook, wherein each of the one or more codebooks corresponding to each second feature sequence has a modulation order The number is different.
- the embodiment of the present invention only takes the second indication information including the third codebook information, the second feature sequence information, and the fourth codebook information as an example, but the present invention is not limited thereto.
- the third codebook information and the fourth codebook information may include only the modulation order information of the codebook.
- the second indication information may only include the second feature sequence information; for example, when the network device uses the first codebook and one When the plurality of second codebooks all correspond to the same feature sequence, the first indication information may include only the third codebook information and the fourth codebook information.
- the information exchange between the network device and the terminal device enables the terminal device to determine the codebook used by all the data streams carried on the same time-frequency resource, so that the network device and the terminal device can perform downlink based on the codebook.
- the transmission of data can effectively improve the network capacity of the system, including increasing the number of accessible users and spectrum efficiency of the system.
- the second indication information is included in the first feature matrix.
- Each of the feature sequences has a corresponding one of the M sets of bit string information, and each set of bit string information is used to indicate whether the corresponding feature sequence belongs to the first feature sequence or the one or more second feature sequences, and each group
- the group of bit string information is further used to indicate one or more codebooks corresponding to the corresponding feature sequence.
- the logical information segment 3 may also pass the manner indicating the modulation order.
- the terminal device can learn the modulation order corresponding to the downlink data stream sent by the network device according to the logical information segment 3, so as to be able to determine one or more codebooks corresponding to the feature sequence.
- the second indication information includes modulation order information of the first codebook and the one or more second codebooks, where each of the feature sequences corresponds to one or more Each codebook in each codebook has a different modulation order.
- each logical information segment indicates an index value
- the index value indicated by the segment uniquely determines the corresponding feature matrix, feature sequence, and codebook through a pre-established correlation index relationship.
- the network device and the terminal device may pre-store the feature matrix and the codebook by using various methods, but the following two conditions must be met: First, the network device and the terminal device may be based on the stored features. The matrix and the codebook know the number of resource units or subcarriers or resource particles included in one coding unit. Second, the network device and the terminal device can learn which of the coding units the terminal device will be based on the stored feature matrix and the codebook. Which non-zero modulation symbols are transmitted on resource elements or subcarriers or resource particles.
- the corresponding feature matrix can be expressed as:
- modulation symbols of the corresponding codewords are stored in the order of the 1 element in the feature sequence described above.
- the codebook used by the variable node 3 in FIG. 2 is stored as:
- the network device and the terminal device can learn, according to the feature matrix, the number of resource units or subcarriers or resource particles included in one coding unit, that is, the number of rows of the feature matrix; according to the feature matrix
- the feature sequence and the codebook in one or more codebooks corresponding to the feature sequence and know which resource units or subcarriers or resource particles of one coding unit to transmit zero modulation symbols and non-bits when the terminal device uses the feature sequence Zero modulation symbol.
- the embodiment of the present invention is only described by taking the foregoing solution as an example, but the present invention is not limited thereto.
- another method may be used to indicate one or more codebooks corresponding to the first feature sequence.
- the method for transmitting indication information in the embodiment of the present invention through the network device in one or more Determining, by the codebook, a first codebook used for transmitting the first downlink data stream to the terminal device, and determining to send one or more second codebooks used by the second downlink data stream, where the second downlink data stream is One or more downlink data streams carried on the time-frequency resource used by the first downlink data stream except the first downlink data stream, and determined to indicate the first codebook and the one or more
- the codebook indication information of the second codebook, and the codebook indication information is sent to the terminal device, so that the terminal device can determine the codebook used by all the data streams carried on the same time-frequency resource, and can be based on the codebooks.
- the codebook indication information sent by the receiving network device includes: receiving a downlink scheduling message, a dedicated high-layer control signaling, or a system broadcast message sent by the network device, the downlink scheduling message, the The dedicated high layer control signaling and the system broadcast message include the codebook indication information.
- the dedicated high-layer control signaling includes a radio resource control RRC connection setup message and an RRC connection reconfiguration message.
- the terminal device may receive the codebook indication information that is sent by the network device in at least one of a bit string manner and a table manner.
- the codebook indication information is bit string information.
- the codebook is a sparse code multiple access SCMA codebook. Further, optionally, the number of zero modulation symbols in the codeword included in the codebook is greater than or equal to the number of non-zero modulation symbols.
- the method for transmitting the indication information in the embodiment of the present invention determines, by using the network device, the first codebook used to send the first downlink data stream to the terminal device in one or more codebooks, and determines to send the second downlink data stream.
- One or more second codebooks used wherein the second downlink data stream is one or more of the time-frequency resources used by the first downlink data stream except the first downlink data stream Downstream data streams, and determining to indicate the first codebook and the one or more second
- the codebook indication information of the codebook, and the codebook indication information is sent to the terminal device, so that the terminal device can determine the codebook used by all the data streams carried on the same time-frequency resource, and can be used according to the codebooks to the network device.
- the first data stream sent to the terminal device is decoded, whereby the network device and the terminal device can perform downlink data transmission based on the codebook, and can effectively increase the network capacity of the system.
- FIG. 9 illustrates an apparatus 500 for transmitting indication information in accordance with an embodiment of the present invention. As shown in FIG. 9, the apparatus 500 includes:
- a first determining module 510 configured to determine, in one or more codebooks, a first codebook used to send a first downlink data stream to a terminal device, where the codebook is composed of two or more codewords, where The codeword is a multi-dimensional complex vector for indicating a mapping relationship between data and at least two modulation symbols, the at least two modulation symbols including at least one zero modulation symbol and at least one non-zero modulation symbol;
- the second determining module 520 is configured to determine one or more second codebooks used for sending the second downlink data stream, where the second downlink data stream is carried on a time-frequency resource used by the first downlink data stream.
- One or more downstream data streams in addition to the first downstream data stream;
- the third determining module 530 is configured to determine codebook indication information for indicating the first codebook determined by the first determining module 510 and the one or more second codebooks determined by the second determining module 520;
- the sending module 540 is configured to send the codebook indication information determined by the third determining module 530 to the terminal device.
- the apparatus for transmitting the indication information in the embodiment of the present invention determines, by the network device, the first codebook used for transmitting the first downlink data stream to the terminal device in one or more codebooks, and determines to send the second downlink data stream.
- One or more second codebooks used wherein the second downlink data stream is one or more of the time-frequency resources used by the first downlink data stream except the first downlink data stream Downstream data streams, and determining codebook indication information for indicating the first codebook and the one or more second codebooks, and transmitting the codebook indication information to the terminal device, so that the terminal device can determine the same time a codebook used by all data streams carried on the frequency resource, and capable of decoding the first data stream sent by the network device to the terminal device according to the codebooks, whereby the network device and the terminal device can perform downlink data based on the codebook Transmission and can effectively improve the network of the system capacity.
- the third determining module 530 includes:
- a first determining unit 531 configured to determine a first codebook set to which the first codebook belongs, one or more second codebook sets to which the one or more second codebooks belong, and the first codebook set And a first codebook cluster to which the one or more second codebook sets belong, wherein each codebook cluster includes at least one codebook set, and each of the codebook sets includes at least one codebook, the codebook cluster
- the codewords in the same codebook cluster satisfy the same total number of modulation symbols, and the codebook set satisfies any two codebooks in the same codebook set, and the modulation symbols of all the codewords have the same position of zero modulation symbols;
- the second determining unit 532 is configured to determine the codebook indication information, where the codebook indication information includes first codebook cluster information, first codebook set information, and first indication information, where the first codebook cluster information is used by Instructing the first codebook cluster, the first codebook set information is used to indicate the first codebook set in the first codebook cluster, and the first indication information is used to indicate the first codebook set.
- a first codebook where the first indication information is further used to indicate the one or more second codebook sets in the first codebook cluster, and the one or more of the one or more second codebook sets The second codebook.
- the first indication information determined by the second determining unit 532 includes: first codebook information, second codebook set information, and second codebook information, where the first The codebook information is used to indicate the first codebook in the first codebook set, where the second codebook set information is used to indicate the one or more second codebook sets in the first codebook cluster, the first The two codebook information is used to indicate the one or more second codebooks in the one or more second codebook sets.
- the first indication information determined by the second determining unit 532 includes M sets of bit string information corresponding to each codebook set in the first codebook cluster, and each The group bit string information is used to indicate whether the corresponding codebook set belongs to the first codebook set or the one or more second codebook sets, and the codebook set corresponding to the each group of bit string information belongs to the first code.
- the set of bit string information is further used to indicate the first codebook or the one or more second codebooks in the corresponding codebook set, where The number of codebook sets included in the first codebook cluster.
- the first indication information determined by the second determining unit 532 includes modulation order information of the first codebook and the one or more second codebooks, where each Each codebook in the codebook set has a different modulation order.
- the third determining module 530 includes:
- a third determining unit 533 configured to determine a first feature sequence to which the first codebook belongs, the one Or one or more second feature sequences to which the plurality of second codebooks belong, and the first feature matrix to which the first feature sequence and the one or more second feature sequences belong, wherein each feature matrix consists of two Or two or more feature sequences, each of the feature sequences corresponding to one or more codebooks, the feature sequence being composed of a zero element and an element, wherein the zero element indicates that all code words in the corresponding codebook are in the The modulation symbols of the corresponding positions of the zero elements are all zero modulation symbols, and the 1 element indicates that all the codewords in the corresponding codebook are not all zero modulation symbols or all non-zero modulation symbols at corresponding positions of the 1 element;
- the fourth determining unit 534 is configured to determine the codebook indication information, where the codebook indication information includes first feature matrix information, first feature sequence information, and second indication information, where the first feature matrix information is used to indicate the a first feature matrix, the first feature sequence information is used to indicate the first feature sequence in the first feature matrix, and the second indication information is used to indicate the one or more codebooks corresponding to the first feature sequence.
- the first codebook, the second indication information is further used to indicate the one or more second feature sequences in the first feature matrix, and the one or more codebooks corresponding to the one or more second feature sequences The one or more second codebooks in the medium.
- the second indication information determined by the fourth determining unit 534 includes: third codebook information, second feature sequence information, and fourth codebook information, where the third code The information is used to indicate the first codebook in the one or more codebooks corresponding to the first feature sequence, and the second feature sequence information is used to indicate the one or more second features in the first feature matrix And the fourth codebook information is used to indicate the one or more second codebooks in the one or more codebooks corresponding to the one or more second feature sequences.
- the second indication information determined by the fourth determining unit 534 includes M groups of bit string information corresponding to each feature sequence in the first feature matrix, each group of bits.
- the string information is used to indicate whether the corresponding feature sequence belongs to the first feature sequence or the one or more second feature sequences, and the feature sequence corresponding to the each group of bit string information belongs to the first feature sequence or the one or more
- Each of the set of bit string information is further used to indicate the first codebook or the one or more second codebooks in the one or more codebooks corresponding to the corresponding feature sequence, where M is the number of feature sequences included in the first feature matrix.
- the second indication information determined by the fourth determining unit 534 includes modulation order information of the first codebook and the one or more second codebooks, where each The modulation order of each of the one or more codebooks corresponding to the signature sequence is different.
- the sending module 540 is specifically configured to: to the terminal device And sending a downlink scheduling message, a dedicated high-level control signaling, or a system broadcast message, where the downlink scheduling message, the dedicated high-layer control signaling, and the system broadcast message include the codebook indication information.
- the dedicated high-layer control signaling includes a radio resource control RRC connection setup message and an RRC connection reconfiguration message.
- the codebook indication information determined by the third determining module 530 is bit string information.
- the codebook is a sparse code multiple access SCMA codebook.
- the number of zero modulation symbols in the codeword included in the codebook is greater than or equal to the number of non-zero modulation symbols.
- the device 500 is a network device.
- apparatus 500 in accordance with embodiments of the present invention may correspond to network devices in embodiments of the present invention, and that the above and other operations and/or functions of various modules in apparatus 500 are respectively implemented in order to implement FIGS. 3 through 5
- the corresponding processes of the respective methods 200 are not described herein for the sake of brevity.
- the apparatus for transmitting the indication information in the embodiment of the present invention determines, by the network device, the first codebook used for transmitting the first downlink data stream to the terminal device in one or more codebooks, and determines to send the second downlink data stream.
- One or more second codebooks used wherein the second downlink data stream is one or more of the time-frequency resources used by the first downlink data stream except the first downlink data stream Downstream data streams, and determining codebook indication information for indicating the first codebook and the one or more second codebooks, and transmitting the codebook indication information to the terminal device, so that the terminal device can determine the same time a codebook used by all data streams carried on the frequency resource, and capable of decoding the first data stream sent by the network device to the terminal device according to the codebooks, whereby the network device and the terminal device can perform downlink data based on the codebook Transmission and can effectively increase the network capacity of the system.
- an apparatus for transmitting indication information according to an embodiment of the present invention is described in detail from a network device side, and a transmission according to an embodiment of the present invention will be described in detail from the terminal device side with reference to FIG. 12 and FIG. A device that indicates information.
- FIG. 12 shows an apparatus 600 for transmitting indication information in accordance with an embodiment of the present invention. As shown in FIG. 12, the apparatus 600 includes:
- the receiving module 610 is configured to receive codebook indication information that is sent by the network device, where the codebook indication information is used to indicate that the network device sends the first codebook used by the first downlink data stream, and the network device sends the second downlink data.
- One or more second codebooks used by the stream wherein the second downlink data
- the stream is one or more downlink data streams carried on the time-frequency resource used by the first downlink data stream except the first downlink data stream, where the codebook is composed of two or more codewords Composed, the codeword is a multi-dimensional complex vector for indicating a mapping relationship between data and at least two modulation symbols, the at least two modulation symbols including at least one zero modulation symbol and at least one non-zero modulation symbol;
- a determining module 620 configured to determine the first codebook and the one or more second codebooks according to the codebook indication information received by the receiving module 610;
- the decoding module 630 is configured to decode the first downlink data stream sent by the network device according to the first codebook and the one or more second codebooks determined by the determining module 620.
- the apparatus for transmitting the indication information in the embodiment of the present invention determines, by the network device, the first codebook used for transmitting the first downlink data stream to the terminal device in one or more codebooks, and determines to send the second downlink data stream.
- One or more second codebooks used wherein the second downlink data stream is one or more of the time-frequency resources used by the first downlink data stream except the first downlink data stream Downstream data streams, and determining codebook indication information for indicating the first codebook and the one or more second codebooks, and transmitting the codebook indication information to the terminal device, so that the terminal device can determine the same time a codebook used by all data streams carried on the frequency resource, and capable of decoding the first data stream sent by the network device to the terminal device according to the codebooks, whereby the network device and the terminal device can perform downlink data based on the codebook Transmission and can effectively increase the network capacity of the system.
- the codebook indication information received by the receiving module 610 includes first codebook cluster information, first codebook set information, and first indication information, where The first codebook cluster information is used to indicate a first codebook cluster, where the first codebook set information is used to indicate a first codebook set in the first codebook cluster, and the first indication information is used to indicate the first codebook set.
- the first codebook cluster information is used to indicate a first codebook cluster
- the first codebook set information is used to indicate a first codebook set in the first codebook cluster
- the first indication information is used to indicate the first codebook set.
- the first indication information is further used to indicate one or more second codebook sets in the first codebook cluster, and the one or more second codebook sets One or more second codebooks;
- the determining module 620 includes: a first determining unit 621, configured to determine, according to the first codebook cluster information, the first codebook set information, and the first indication information, the first part included in the first codebook cluster
- the first codebook in a codebook set and the one or more second codebooks in the one or more second codebook sets included in the first codebook cluster wherein each codebook cluster includes at least a codebook set, each of the codebook sets includes at least one codebook, the codebook clusters satisfying that the codewords in the same codebook cluster have the same total number of modulation symbols, and the codebook set satisfies any two of the same codebook sets.
- the codebooks have the same modulation symbol for all codewords with the same position as the zero modulation symbol.
- the first indication information received by the receiving module 610 includes: first codebook information, second codebook set information, and second codebook information, where the first codebook The information is used to indicate the first codebook in the first codebook set, where the second codebook set information is used to indicate the one or more second codebook sets in the first codebook cluster, the second code The information is used to indicate the one or more second codebooks in the one or more second codebook sets.
- the first indication information received by the receiving module 610 includes M groups of bit string information corresponding to each codebook set in the first codebook cluster, each group of bits.
- the string information is used to indicate whether the corresponding codebook set belongs to the first codebook set or the one or more second codebook sets, and the codebook set corresponding to the each group of bit string information belongs to the first codebook set.
- the each group of bit string information is further used to indicate the first codebook or the one or more second codebooks in the corresponding codebook set, where M is the The number of codebook sets included in the first codebook cluster.
- the first indication information received by the receiving module 610 includes modulation order information of the first codebook and the one or more second codebooks, where each of the codes The modulation order of each codebook in this set is different.
- the codebook indication information received by the receiving module 610 includes first feature matrix information, first feature sequence information, and second indication information, where the first a feature matrix information is used to indicate a first feature matrix, the first feature sequence information is used to indicate a first feature sequence in the first feature matrix, and the second indication information is used to indicate a corresponding one of the first feature sequences
- the first codebook in the plurality of codebooks, the second indicator information is further used to indicate one or more second feature sequences in the first feature matrix, and a corresponding one of the one or more second feature sequences Or the one or more second codebooks in the plurality of codebooks;
- the determining module 620 includes: a second determining unit 622, configured to determine, according to the first feature matrix information, the first feature sequence information, and the second indication information, the first feature sequence included in the first feature matrix The first codebook in the corresponding one or more codebooks, and the one or more second codebooks in the one or more second feature sequences included in the first feature matrix, wherein each feature A matrix consists of two or more sequences of features, each of which corresponds to one or more codebooks, the sequence of features consisting of a zero element and an element representing all of the corresponding codebooks The modulation symbols of the codeword at the corresponding position of the zero element are all zero modulation symbols, and the 1 element indicates that all the codewords in the corresponding codebook are not all zero modulation symbols or all non-zero at the corresponding positions of the 1 element. Modulation symbol.
- the second indication information received by the receiving module 610 includes: third codebook information, second feature sequence information, and fourth codebook information, where the third codebook information For indicating the first codebook in the one or more codebooks corresponding to the first feature sequence, the second feature sequence information is used to indicate the one or more second feature sequences in the first feature matrix, The fourth codebook information is used to indicate the one or more second codebooks in the one or more codebooks corresponding to the one or more second feature sequences.
- the second indication information received by the receiving module 610 includes M sets of bit string information corresponding to each feature sequence in the first feature matrix, and each group of bit string information And indicating whether the corresponding feature sequence belongs to the first feature sequence or the one or more second feature sequences, and the feature sequence corresponding to the each group of bit string information belongs to the first feature sequence or the one or more
- the second set of bit string information is further used to indicate the first codebook or the one or more second codebooks in the one or more codebooks corresponding to the corresponding feature sequence, where M is The number of feature sequences included in the first feature matrix.
- the second indication information received by the receiving module 610 includes modulation order information of the first codebook and the one or more second codebooks, where each of the features Each of the one or more codebooks corresponding to the sequence has a different modulation order.
- the receiving module 610 is specifically configured to: receive a downlink scheduling message, a dedicated high-layer control signaling, or a system broadcast message sent by the network device, the downlink scheduling message, and the dedicated high-layer control signaling.
- the system broadcast message includes the codebook indication information.
- the dedicated high-layer control signaling includes a radio resource control RRC connection setup message and an RRC connection reconfiguration message.
- the codebook indication information received by the receiving module 610 is bit string information.
- the codebook is a sparse code multiple access SCMA codebook.
- the number of zero modulation symbols in the codeword included in the codebook is greater than or equal to the number of non-zero modulation symbols.
- the device 600 is a terminal device.
- apparatus 600 for transmitting indication information may correspond to the terminal apparatus in the method embodiment of the present invention, and the above and other operations and/or functions of the respective modules in the apparatus 600 are respectively implemented in order to implement FIG.
- the corresponding processes of the respective methods 300 in FIG. 8 are not described herein for the sake of brevity.
- the apparatus for transmitting the indication information in the embodiment of the present invention determines, by the network device, the first codebook used for transmitting the first downlink data stream to the terminal device in one or more codebooks, and determines to send the second downlink data stream.
- One or more second codebooks used wherein the second downlink data stream is one or more of the time-frequency resources used by the first downlink data stream except the first downlink data stream Downstream data streams, and determining codebook indication information for indicating the first codebook and the one or more second codebooks, and transmitting the codebook indication information to the terminal device, so that the terminal device can determine the same time a codebook used by all data streams carried on the frequency resource, and capable of decoding the first data stream sent by the network device to the terminal device according to the codebooks, whereby the network device and the terminal device can perform downlink data based on the codebook Transmission and can effectively increase the network capacity of the system.
- an embodiment of the present invention further provides an apparatus 800 for transmitting indication information
- the apparatus 800 includes: a processor 810, a memory 820, a bus system 830, and a transmitter 840, wherein the processor 810, the The memory 820 and the transmitter 840 are connected by the bus system 830, the memory 820 is configured to store instructions, and the processor 810 is configured to execute instructions stored by the memory 820 to control the transmitter 840 to send signals.
- processor 810 is configured to:
- a first codebook used for transmitting the first downlink data stream to the terminal device where the codebook is composed of two or more codewords, where the codeword is a multi-dimensional complex vector, And representing a mapping relationship between the data and the at least two modulation symbols, the at least two modulation symbols including at least one zero modulation symbol and at least one non-zero modulation symbol;
- codebook indication information for indicating the first codebook and the one or more second codebooks
- the transmitter 840 is configured to: send the codebook indication information to the terminal device.
- the apparatus for transmitting the indication information in the embodiment of the present invention determines, by the network device, the first codebook used for transmitting the first downlink data stream to the terminal device in one or more codebooks, and determines to send the second downlink data stream.
- One or more second codebooks used wherein the second downlink data stream is one or more of the time-frequency resources used by the first downlink data stream except the first downlink data stream Downstream data streams, and determining codebook indication information for indicating the first codebook and the one or more second codebooks, and transmitting the codebook indication information to the terminal device, so that the terminal device
- the codebook used by all the data streams carried on the same time-frequency resource can be determined, and the first data stream sent by the network device to the terminal device can be decoded according to the codebooks, whereby the network device and the terminal device can be based on the code
- the downlink data is transmitted, and the network capacity of the system can be effectively improved.
- the processor 810 may be a central processing unit (“CPU"), and the processor 810 may also be other general-purpose processors, digital signal processors (DSPs). , an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like.
- the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
- the memory 820 can include read only memory and random access memory and provides instructions and data to the processor 810. A portion of the memory 820 may also include a non-volatile random access memory. For example, the memory 820 can also store information of the device type.
- the bus system 830 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of description, various buses are labeled as bus system 830 in the figure.
- each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 810 or an instruction in a form of software.
- the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
- the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
- the storage medium is located in the memory 820, and the processor 810 reads the information in the memory 820 and completes the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.
- the processor 810 determines codebook indication information for indicating the first codebook and the one or more second codebooks, including:
- each codebook cluster includes at least one codebook set, each codebook set includes at least one codebook, and the codebook cluster satisfies code in the same codebook cluster
- the word has the same total number of modulation symbols, and the codebook set satisfies any two codebooks in the same codebook set, and the modulation symbols of all the codewords have the same position of zero modulation symbols;
- the codebook indication information includes the first codebook cluster information, the first codebook And the first codebook cluster information is used to indicate the first codebook cluster, where the first codebook set information is used to indicate the first codebook in the first codebook cluster
- the first indication information is used to indicate the first codebook in the first codebook set, where the first indication information is further used to indicate the one or more second codebooks in the first codebook cluster. And the one or more second codebooks in the one or more second codebook sets.
- the first indication information determined by the processor 810 includes: first codebook information, second codebook set information, and second codebook information, where the first codebook information is used by Instructing the first codebook in the first codebook set, the second codebook set information is used to indicate the one or more second codebook sets in the first codebook cluster, the second codebook information And indicating the one or more second codebooks in the one or more second codebook sets.
- the first indication information determined by the processor 810 includes M sets of bit string information corresponding to each codebook set in the first codebook cluster, each set of bit string information. And indicating whether the corresponding codebook set belongs to the first codebook set or the one or more second codebook sets, and the codebook set corresponding to the each group of bit string information belongs to the first codebook set or the The one or more second codebooks are further used to indicate the first codebook or the one or more second codebooks in the corresponding codebook set, where M is the first The number of codebook sets included in the codebook cluster.
- the first indication information determined by the processor 810 includes modulation order information of the first codebook and the one or more second codebooks, where each of the codebook sets Each codebook has a different modulation order.
- the processor 810 determines codebook indication information for indicating the first codebook and the one or more second codebooks, including:
- each feature matrix is composed of two or more feature sequences, each of the feature sequences corresponding to one or more codebooks, the feature sequence being composed of zero elements and one element,
- a zero element indicates that all codewords in the corresponding codebook have modulation symbols at the corresponding positions of the zero elements all zero modulation symbols, and the 1 element indicates modulation of all codewords in the corresponding codebook at corresponding positions of the 1 element.
- the symbols are not all zero modulation symbols or all non-zero modulation symbols;
- the codebook indication information includes first feature matrix information, first feature sequence information, and second indication information, where the first feature matrix information is used to indicate the first feature And the first feature sequence information is used to indicate the first feature sequence in the first feature matrix, where the second indication information is used to indicate the first one of the one or more codebooks corresponding to the first feature sequence a second code information, where the second indication information is further used to indicate the one or more second feature sequences in the first feature matrix, and one or more codebooks corresponding to the one or more second feature sequences The one or more second codebooks.
- the second indication information that is determined by the processor 810 includes: third codebook information, second feature sequence information, and fourth codebook information, where the third codebook information is used. And indicating the first codebook in the one or more codebooks corresponding to the first feature sequence, where the second feature sequence information is used to indicate the one or more second feature sequences in the first feature matrix, the first The four codebook information is used to indicate the one or more second codebooks in the one or more codebooks corresponding to the one or more second feature sequences.
- the second indication information determined by the processor 810 includes M sets of bit string information corresponding to each feature sequence in the first feature matrix, and each set of bit string information is used. Determining whether the corresponding feature sequence belongs to the first feature sequence or the one or more second feature sequences, and the feature sequence corresponding to the each group of bit string information belongs to the first feature sequence or the one or more second features In the sequence, the set of bit string information is further used to indicate the first codebook or the one or more second codebooks in the one or more codebooks corresponding to the corresponding feature sequence, where M is the first The number of feature sequences included in a feature matrix.
- the second indication information determined by the processor 810 includes modulation order information of the first codebook and the one or more second codebooks, where each of the feature sequences corresponds to The modulation order of each of the one or more codebooks is different.
- the transmitter 840 sends the codebook indication information to the terminal device, including:
- a downlink scheduling message a dedicated high-layer control signaling, or a system broadcast message
- the downlink scheduling message, the dedicated high-layer control signaling, and the system broadcast message include the codebook indication information.
- the dedicated high layer control signaling includes a radio resource control RRC connection setup message and an RRC connection reconfiguration message.
- the codebook indication information determined by the processor 810 is bit string information.
- the codebook is a sparse code multiple access SCMA codebook.
- the number of zero elements in the codeword included in the codebook is greater than or equal to the number of modulation symbols.
- the device 800 is a network device.
- the apparatus 800 for transmitting indication information may correspond to the network device and the apparatus 500 in the embodiment of the present invention, and may correspond to executing a corresponding body in the method according to an embodiment of the present invention, and the apparatus 800
- the above and other operations and/or functions of the respective modules in order to implement the respective processes of the respective methods in FIG. 3 to FIG. 5 are omitted for brevity.
- the apparatus for transmitting the indication information in the embodiment of the present invention determines, by the network device, the first codebook used for transmitting the first downlink data stream to the terminal device in one or more codebooks, and determines to send the second downlink data stream.
- One or more second codebooks used wherein the second downlink data stream is one or more of the time-frequency resources used by the first downlink data stream except the first downlink data stream Downstream data streams, and determining codebook indication information for indicating the first codebook and the one or more second codebooks, and transmitting the codebook indication information to the terminal device, so that the terminal device can determine the same time a codebook used by all data streams carried on the frequency resource, and capable of decoding the first data stream sent by the network device to the terminal device according to the codebooks, whereby the network device and the terminal device can perform downlink data based on the codebook Transmission and can effectively increase the network capacity of the system.
- an embodiment of the present invention further provides an apparatus 900 for transmitting indication information, where the apparatus 900 includes: a processor 910, a memory 920, a bus system 930, and a receiver 940, wherein the processor 910, the The memory 920 and the receiver 940 are connected by the bus system 930 for storing instructions, and the processor 910 is configured to execute instructions stored by the memory 920 to control the receiver 940 to receive signals;
- the receiver 940 is configured to: receive codebook indication information sent by the network device, where the codebook indication information is used to indicate that the network device sends the first codebook used by the first downlink data stream, and the network device sends the first codebook.
- One or more second codebooks used by the second downlink data stream where the second downlink data stream is carried on the time-frequency resource used by the first downlink data stream except the first downlink data stream.
- One or more downstream data streams, the codebook being composed of two or more codewords, the codeword being a multi-dimensional complex vector for indicating a mapping relationship between data and at least two modulation symbols, the at least The two modulation symbols include at least one zero modulation symbol and at least one non-zero modulation symbol;
- the processor 910 is configured to: determine the first codebook and the one or more second codebooks according to the codebook indication information; and according to the first codebook and the one or more second codebook pairs The first downlink data stream sent by the network device is decoded.
- the apparatus for transmitting the indication information in the embodiment of the present invention determines, by the network device, the first codebook used for transmitting the first downlink data stream to the terminal device in one or more codebooks, and determines to send the second downlink data stream.
- One or more second codebooks used wherein the second downlink data stream is one or more of the time-frequency resources used by the first downlink data stream except the first downlink data stream Downstream data streams, and determining codebook indication information for indicating the first codebook and the one or more second codebooks, and transmitting the codebook indication information to the terminal device, so that the terminal device can determine the same time a codebook used by all data streams carried on the frequency resource, and capable of decoding the first data stream sent by the network device to the terminal device according to the codebooks, whereby the network device and the terminal device can perform downlink data based on the codebook Transmission and can effectively increase the network capacity of the system.
- the processor 910 may be a central processing unit (“CPU"), and the processor 910 may also be other general-purpose processors, digital signal processors (DSPs). , an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like.
- the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
- the memory 920 can include read only memory and random access memory and provides instructions and data to the processor 910. A portion of the memory 920 may also include a non-volatile random access memory. For example, the memory 920 can also store information of the device type.
- the bus system 930 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of description, various buses are labeled as bus system 930 in the figure.
- each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 910 or an instruction in a form of software.
- the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
- the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
- the storage medium is located in the memory 920, and the processor 910 reads the information in the memory 920 and completes the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.
- the codebook indication information received by the receiver 940 includes first codebook cluster information, first codebook set information, and first indication information, where the first codebook cluster information is used. Instructing the first codebook cluster, the first codebook set information is used to indicate a first codebook set in the first codebook cluster, and the first indication information is used to indicate the first code in the first codebook set. The first indication information is further used to indicate one or more second codebook sets in the first codebook cluster, and the one or more second codebooks in the one or more second codebook sets. ;
- the processor 910 determines the first codebook and the one or more second codebooks according to the codebook indication information, including:
- each codebook cluster includes at least one codebook set, each codebook set including at least one codebook
- the codebook cluster satisfies the same number of modulation symbols in the same codebook cluster, and the codebook set satisfies any two codebooks in the same codebook set.
- the modulation symbols for all codewords are zero modulation symbols.
- the location is the same.
- the first indication information received by the receiver 940 includes: first codebook information, second codebook set information, and second codebook information, where the first codebook information is used by Instructing the first codebook in the first codebook set, the second codebook set information is used to indicate the one or more second codebook sets in the first codebook cluster, the second codebook information And indicating the one or more second codebooks in the one or more second codebook sets.
- the first indication information received by the receiver 940 includes M sets of bit string information corresponding to each codebook set in the first codebook cluster, each group of bit string information. And indicating whether the corresponding codebook set belongs to the first codebook set or the one or more second codebook sets, and the codebook set corresponding to the each group of bit string information belongs to the first codebook set or the
- the one or more second codebooks are further used to indicate the first codebook or the one or more second codebooks in the corresponding codebook set, where M is the first The number of codebook sets included in the codebook cluster.
- the first indication information received by the receiver 940 includes modulation order information of the first codebook and the one or more second codebooks, where each of the codebook sets Each codebook has a different modulation order.
- the codebook indication information received by the receiver 940 includes first feature matrix information, first feature sequence information, and second indication information, where the first feature moment Array information is used to indicate a first feature matrix, the first feature sequence information is used to indicate a first feature sequence in the first feature matrix, and the second indication information is used to indicate one or more corresponding to the first feature sequence
- the first codebook in the codebook, the second indication information is further used to indicate one or more second feature sequences in the first feature matrix, and one or more corresponding to the one or more second feature sequences The one or more second codebooks in the codebook;
- the processor 910 determines the first codebook and the one or more second codebooks according to the codebook indication information, including:
- each feature matrix is composed of two or more feature sequences, each of which The feature sequence corresponds to one or more codebooks, and the feature sequence is composed of a zero element and an element, and the zero element indicates that all codewords in the corresponding codebook have zero modulation symbols at corresponding positions of the zero element.
- the 1 element indicates that all codewords in the corresponding codebook have not all zero modulation symbols or all non-zero modulation symbols at corresponding positions of the 1 element.
- the second indication information received by the receiver 940 includes: third codebook information, second feature sequence information, and fourth codebook information, where the third codebook information is used. And indicating the first codebook in the one or more codebooks corresponding to the first feature sequence, where the second feature sequence information is used to indicate the one or more second feature sequences in the first feature matrix, the first The four codebook information is used to indicate the one or more second codebooks in the one or more codebooks corresponding to the one or more second feature sequences.
- the second indication information received by the receiver 940 includes M sets of bit string information corresponding to each feature sequence in the first feature matrix, and each set of bit string information is used. Determining whether the corresponding feature sequence belongs to the first feature sequence or the one or more second feature sequences, and the feature sequence corresponding to the each group of bit string information belongs to the first feature sequence or the one or more second features In the sequence, the set of bit string information is further used to indicate the first codebook or the one or more second codebooks in the one or more codebooks corresponding to the corresponding feature sequence, where M is the first The number of feature sequences included in a feature matrix.
- the second indication information received by the receiver 940 includes modulation order information of the first codebook and the one or more second codebooks, where each of the feature sequences corresponds to The modulation order of each of the one or more codebooks is different.
- the receiver 940 receives the codebook indication information sent by the network device, including:
- a downlink scheduling message receives, by the network device, a downlink scheduling message, a dedicated high-layer control signaling, or a system broadcast message, where the downlink scheduling message, the dedicated high-layer control signaling, and the system broadcast message include the codebook indication information.
- the dedicated high layer control signaling includes a radio resource control RRC connection setup message and an RRC connection reconfiguration message.
- the codebook indication information received by the receiver 940 is bit string information.
- the codebook is a sparse code multiple access SCMA codebook.
- the number of zero modulation symbols in the codeword included in the codebook is greater than or equal to the number of non-zero modulation symbols.
- the device 900 is a terminal device.
- the apparatus 900 for transmitting indication information may correspond to the terminal apparatus and apparatus 600 in the embodiment of the present invention, and may correspond to a corresponding subject in a method according to an embodiment of the present invention, and the apparatus 900
- the above and other operations and/or functions of the respective modules in order to implement the respective processes of the respective methods in FIG. 6 to FIG. 8 are omitted for brevity.
- the apparatus for transmitting the indication information in the embodiment of the present invention determines, by the network device, the first codebook used for transmitting the first downlink data stream to the terminal device in one or more codebooks, and determines to send the second downlink data stream.
- One or more second codebooks used wherein the second downlink data stream is one or more of the time-frequency resources used by the first downlink data stream except the first downlink data stream Downstream data streams, and determining codebook indication information for indicating the first codebook and the one or more second codebooks, and transmitting the codebook indication information to the terminal device, so that the terminal device can determine the same time a codebook used by all data streams carried on the frequency resource, and capable of decoding the first data stream sent by the network device to the terminal device according to the codebooks, whereby the network device and the terminal device can perform downlink data based on the codebook Transmission and can effectively increase the network capacity of the system.
- the codebook set of the above embodiment is described here as follows: The method and apparatus for transmitting the indication information in the case where the codebook set has the following characteristics is described above with reference to FIG. 1 to FIG.
- the codebook set satisfies that the codewords in the same codebook set have the same total number of modulation symbols, and any two codebooks in the same codebook set have zero modulation for the modulation symbols of all codewords.
- the positions of the symbols are the same.
- multiple codebooks may also be divided into one or more codebook sets having other characteristics, and each codebook set may also include one or more codebooks, for example, the codebook set is also The codebook set satisfies that the codewords in the same codebook set have the same total number of modulation symbols, and the codebooks in the same codebook set have the same total number of codewords; it can also be understood as the codebook set.
- Each codeword has the same length, and each codebook in the codebook set has the same number of codewords.
- the method 200 for transmitting the indication information shown in FIG. 3 may be performed by, for example, a network device in a non-orthogonal multiple access system, where the network device is, for example, a base station, where the method 200 may include:
- S210 Determine, in one or more codebooks, a first codebook used to send a first downlink data stream to a terminal device, where the codebook is composed of two or more codewords, where the codeword is a multi-dimensional complex vector. And indicating a mapping relationship between the data and the at least two modulation symbols, where the mapping relationship may be a direct mapping relationship, where the direct mapping relationship may be understood as not needing to acquire an intermediate modulation symbol, the at least two modulation symbols including at least one zero modulation a symbol and at least one non-zero modulation symbol;
- the network device allocates or specifies a codebook for one or more downlink data streams to be received of each terminal device; in order to enable the terminal device to The downlink data stream sent by the terminal device is correctly received or decoded.
- the terminal device not only needs to know the codebook used by the network device to send the downlink data stream, but also needs to know the time-frequency resource used by the network device to send the downlink data stream.
- One or more codebooks used to send other downstream data streams are examples of codebook for the network device to send the downlink data stream.
- the network device may determine the first codebook and the one or more second codebooks, and determine codebook indication information for indicating the first codebook and the one or more second codebooks, the first Codebook for the net
- the network device sends, to the terminal device, a codebook used by the first downlink data stream, where the one or more second codebooks are one or more codebooks used by the network device to send the second downlink data stream to other terminal devices,
- the second downlink data stream is one or more downlink data flows carried by the time-frequency resource used by the first downlink data stream except the first downlink data stream; and the network device may
- the terminal device sends the codebook indication information, where the codebook indication information is used to indicate that the terminal device receives the first codebook and the one or more second codebooks used by the first downlink data.
- the terminal device may determine, according to the codebook indication information, a first codebook used by the network device to send the first downlink data stream, and the network device uses the downlink data stream to send the downlink data stream. Transmitting one or more second codebooks used by other downlink data streams on the same time-frequency resource, whereby the terminal device can send the network code device according to the first codebook and the one or more second codebooks A downlink data is received or decoded. Therefore, the information exchange between the network device and the terminal device enables the terminal device to determine the codebook used by all the data streams carried on the same time-frequency resource, so that the network device and the terminal device can perform downlink data based on the codebook. Transmission and can effectively increase the network capacity of the system.
- the method for transmitting the indication information in the embodiment of the present invention determines, by using the network device, the first codebook used to send the first downlink data stream to the terminal device in one or more codebooks, and determines to send the second downlink data stream.
- One or more second codebooks used wherein the second downlink data stream is one or more of the time-frequency resources used by the first downlink data stream except the first downlink data stream Downstream data streams, and determining codebook indication information for indicating the first codebook and the one or more second codebooks, and transmitting the codebook indication information to the terminal device, so that the terminal device can determine the same time a codebook used by all data streams carried on the frequency resource, and capable of decoding the first data stream sent by the network device to the terminal device according to the codebooks, whereby the network device and the terminal device can perform downlink data based on the codebook Transmission, and can effectively improve the network capacity of the system, including improving the number of accessible users and spectrum efficiency of the system.
- the non-orthogonal multiple access technology transmits a plurality of different data streams on the same resource unit by using the codebook, that is, multiple different data streams multiplex the same resource unit, where different data
- the codebooks used by the streams are different, so as to achieve the purpose of improving the utilization of resources, the data streams may be from the same terminal device or from different terminal devices.
- the codeword can be represented as a multi-dimensional complex vector, and the dimension of the complex vector can be two-dimensional or more, used to represent a mapping relationship between data and two or more modulation symbols, the modulation symbol includes At least one zero modulation symbol and at least one non-zero modulation symbol, the data may be Binary bit data or multivariate data.
- a codebook can consist of two or more codewords. The codebook can represent a mapping relationship between a possible data combination of a certain length of data and a codeword in the codebook.
- the non-orthogonal multiple access technology directly maps the data in the data stream to a codeword in the codebook, that is, a multi-dimensional complex vector, to realize extended transmission of data on multiple resource units. It may be binary bit data or multi-dimensional data, and the resource unit may be a resource unit of a time domain, a frequency domain, a spatial domain, a time-frequency domain, a spatio-temporal domain or a time-frequency spatial domain.
- the codebook is composed of two or more codewords
- the codeword is a multi-dimensional complex vector, which is used to represent a mapping relationship between data and at least two modulation symbols, and the mapping relationship may be a direct mapping relationship, the at least two modulation symbols comprising at least one zero modulation symbol and at least one non-zero modulation symbol; each feature matrix consisting of two or more feature sequences, each feature matrix corresponding to one or more codes
- each feature sequence also corresponds to one or more codebooks, and the feature sequence is composed of a zero element and an element, and the zero element indicates that all codewords in the corresponding codebook have modulation symbols at corresponding positions of the zero element.
- a zero modulation symbol, the 1 element indicates that all codewords in the corresponding codebook are not all zero modulation symbols or all non-zero modulation symbols at corresponding positions of the 1 element.
- multiple codebooks may be divided into one or more codebook clusters, and each codebook cluster may include one or more codebooks, for any two codebooks in the same codebook cluster,
- codebook a and codebook b have the following characteristics: the codeword in codebook a has the same total number of modulation symbols as the codeword in codebook b. Therefore, the codebook in the codebook cluster satisfies the same total number of modulation symbols that all codewords have, that is, the lengths of all the codewords are the same, that is, the number of resource units multiplexed by the data stream is the same.
- multiple codebooks may also be divided into one or more codebook sets having other characteristics, and each codebook set may also include one or more codebooks, for example, the codebook set is also The codebook set satisfies that the codewords in the same codebook set have the same total number of modulation symbols, and the codebooks in the same codebook set have the same total number of codewords; it can also be understood as the codebook set.
- Each codeword has the same length, and each codebook in the codebook set has the same number of codewords.
- codebook 1 in FIG. 2 can be represented as codebook 1
- codebook 3 can be represented as a code.
- Ben 3 codebook 1 and codebook 3 can be expressed as:
- e n,q ⁇ *exp(j* ⁇ )
- n ⁇ 2,4 ⁇ , 1 ⁇ q ⁇ 4, ⁇ and ⁇ can be any real number, for any q, 1 ⁇ q ⁇ 4, e 2 , q and e 4, q are not zero at the same time, and there is at least one set of q1 and q2, so that And 1 ⁇ q1 ⁇ 4 and 1 ⁇ q2 ⁇ 4.
- Codebook 1 has 4 code words, each codeword has 4 modulation symbols, that is, the codebook 1 has a total number of codewords of 4, and each codeword in the codebook 1 has a total number of modulation symbols. 4; Similarly, codebook 3 has a total number of codewords of 4, and each codeword in codebook 3 has a total number of modulation symbols of four. Therefore, if the codebook set is divided according to the above characteristics, the above codebook 1 and codebook 3 may belong to the same codebook set.
- multiple codebooks may also be divided into one or more codebook sets, and each codebook set may include one or more codebooks, for any two codes in the same codebook set.
- the codebook c and the codebook d have the following features: (1) the codeword in the codebook c has the same total number of modulation symbols as the codeword in the codebook d; (2) the code in the codebook c The number of words is the same as the number of code words in codebook d, that is, the codebooks in the codebook set have the same total number of codewords.
- the total number of modulation symbols that the codeword has represents the number of modulation symbols included in the codeword; accordingly, in the embodiment of the present invention, “the total number of codewords that the codebook has” Represents the number of codewords included in the codebook.
- the codebook 2 has 4 codewords, wherein the codeword 1 has 4 modulation symbols, and thus, the codebook 2 has a total number of codewords of 4, which The codeword 1 in the codebook 2 has a total number of modulation symbols of 4, wherein the codebook 2 and the codeword 1 can be respectively represented as:
- each codebook cluster includes one or more codebook sets, each codebook set includes one or more codebooks, and each codebook is composed of two or more codewords.
- each codebook cluster satisfies that the codewords in the same codebook cluster have the same total number of modulation symbols, and each codebook set satisfies that the codewords in the same codebook set have the same total number of modulation symbols, and the same codebook is concentrated.
- the codebook has the same total number of codewords.
- the determining is used to indicate the first codebook and the one or more Codebook indication information of the second codebook, including:
- each codebook cluster includes at least one codebook set, each codebook set includes at least one codebook, and the codebook cluster satisfies code in the same codebook cluster
- the word has the same total number of modulation symbols, the codebook set satisfies that the codewords in the same codebook set have the same total number of modulation symbols, and the codebooks in the same codebook set have the same total number of codewords;
- the codebook indication information includes the first codebook cluster information, the first codebook set information, and the first indication information, where the first codebook cluster information is used to indicate the first codebook cluster
- the first codebook information is used to indicate the first codebook set in the first codebook cluster
- the first indication information is used to indicate the first codebook in the first codebook set
- the first codebook is further used to indicate the one or more second codebook sets in the first codebook cluster, and the one or more second codebooks in the one or more second codebook sets.
- the network device and the terminal device may store a pre-designed codebook, where each codebook may be divided into one or more codebook sets, and each codebook set is composed of one or more codes.
- each codebook set may correspond to one modulation order, and any two codebooks in the same codebook set, such as codebook a and codebook b, have the following characteristics: codewords and codes in codebook a
- the codewords in the present b have the same total number of modulation symbols;
- the number of codewords in the codebook a is the same as the number of codewords in the codebook b, that is, the codebooks in the codebook set have the same total number of codewords. That is, the codebook set satisfies the same codebook set, and the codewords have the same total number of modulation symbols, and the codebooks in the same codebook set have the same total number of codewords.
- the one or more codebook sets divided according to the above manner may be further divided into one or more codebook clusters, each codebook cluster being composed of one or more codebook sets, and any two codes in the same codebook cluster.
- the set such as the codebook set A and the codebook set B, has the following feature: the codeword in the codebook set A and the codeword in the codebook set B have the same total number of modulation symbols, that is, all codewords have the same length That is, the number of resource units multiplexed by the data stream is the same. That is, the codebook cluster satisfies that the codewords in the same codebook cluster have the same total number of modulation symbols.
- the network device allocates, in the same codebook cluster, a first codebook used for transmitting the first downlink data stream, and one or more seconds respectively used to send the second downlink data stream. Codebook.
- the network device determines the first codebook set to which the first codebook belongs, and the one to which the one or more second codebooks belong.
- the codebook indication information of the one or more second codebooks may include first codebook cluster information, first codebook set information, and first indication information.
- the codebook indication information may be composed of three logical information segments, where the logical information segment 1 may carry the first codebook cluster information, and is used to instruct the terminal device to send the first downlink data stream and the second downlink data stream.
- the logical information segment 2 may carry the first codebook set information, and is used to instruct the terminal device to send the first codebook set in the first codebook cluster used by the first downlink data stream;
- the logical information segment 3 may be configured to carry the first indication information, where the first indication information is used to indicate the first codebook in the first codebook set, where the first indication information is further used to indicate the One or more second codebook sets, and the one or more second codebooks in the one or more second codebook sets.
- each logical information segment of the codebook indication information may be continuously or non-continuously appearing in the instruction in which the codebook indication information is located in any one of the sequential manners. Not limited.
- the terminal device can learn, according to the logical information segment 1 therein, which codebook in the codebook cluster the network device uses to send the first downlink data. a stream and a second downlink data stream; the terminal device can learn, according to the logical information segment 2 therein, which codebook set in the codebook cluster indicated by the logical information segment 1 is used by the network device to send the first downlink data stream; The terminal device can learn, according to the logical information segment 3 therein, which codebook in the codebook set indicated by the logical information segment 2 of the network device sends the first downlink data stream, and further, the terminal device can also learn that the network device adopts the logical information segment 1 Which codebook sets in the indicated codebook cluster and which codebooks in the codebook set send the second downlink data stream.
- the information exchange between the network device and the terminal device enables the terminal device to determine the codebook used by all the data streams carried on the same time-frequency resource, so that the network device and the terminal device can perform downlink based on the codebook.
- the transmission of data can effectively improve the network capacity of the system, including increasing the number of accessible users and spectrum efficiency of the system.
- the network device may indicate the first codebook in the first codebook set to the terminal device in multiple manners, and indicate the one or more in the first codebook cluster to the terminal device.
- the two codebook set, and the one or more second codebooks in the one or more second codebook sets, are described separately below.
- the first indication information includes: first codebook information, The second codebook information and the second codebook information, wherein the first codebook information is used to indicate the first codebook in the first codebook set, and the second codebookset information is used to indicate the first codebook The one or more second codebook sets in the cluster, the second codebook information being used to indicate the one or more second codebooks in the one or more second codebook sets.
- the logical information segment 3 carrying the first indication information may further include three logical information sub-sections, namely, logical information sub-segment 1, logical information sub-segment 2, and logical information sub-
- the logical information sub-segment 1 can carry the first codebook information for indicating the first codebook in the first codebook set
- the logical information sub-segment 2 can carry the second codebook set information, Instructing the one or more second codebook sets in the first codebook cluster
- the logical information subsection 3 may carry second codebook information for indicating the one of the one or more second codebook sets Or multiple second codebooks.
- the embodiment of the present invention only takes the first indication information including the first codebook information, the second codebook set information, and the second codebook information as an example, but the present invention is not limited thereto.
- the first indication information includes M sets of bit string information corresponding to each codebook set in the first codebook cluster, and each set of bit string information is used to indicate corresponding Whether the codebook set belongs to the first codebook set or the one or more second codebook sets, and the codebook set corresponding to the each group of bitstring information belongs to the first codebook set or the one or more
- the group of bit string information is further used to indicate the first codebook or the one or more second codebooks in the corresponding codebook set, where M is the first codebook cluster includes The number of codebook sets.
- each logical information segment indicates an index value
- the corresponding codebook cluster, codebook set and codebook are uniquely determined by the pre-established correlation index relationship according to the index value indicated by the logical information segment.
- the method for transmitting indication information in the embodiment of the present invention through the network device in one or more Determining, by the codebook, a first codebook used for transmitting the first downlink data stream to the terminal device, and determining to send one or more second codebooks used by the second downlink data stream, where the second downlink data stream is One or more downlink data streams carried on the time-frequency resource used by the first downlink data stream except the first downlink data stream, and determined to indicate the first codebook and the one or more
- the codebook indication information of the second codebook, and the codebook indication information is sent to the terminal device, so that the terminal device can determine the codebook used by all the data streams carried on the same time-frequency resource, and can be based on the codebooks.
- a method 220 of determining codebook indication information according to an embodiment of the present invention will be described in detail below with reference to FIGS. 16 and 17.
- the determining codebook indication information for indicating the first codebook and the one or more second codebooks includes:
- S235 Determine a first mode and an order of the terminal device in the first data stream and the multiple terminal devices to which the second data stream belongs, where the first mode is used to indicate the first codebook and the one or more a third codebook set to which the second codebook belongs, and allocation information of the codebooks in the third codebook set in the plurality of terminal devices; wherein each codebook set includes at least one codebook, the codebook A set of codewords satisfying the same codebook set has the same total number of modulation symbols, and the codebooks in the same codebook set have the same total number of codewords;
- the codebook indication information is determined, where the codebook indication information includes the first mode information and the first terminal device ranking information, where the first mode information is used to indicate the first mode, and the first terminal device is used to sort information. The order of the terminal device in the plurality of terminal devices is indicated.
- the network device and the terminal device may store a pre-designed codebook, where each codebook may be divided into one or more codebook sets, and each codebook set is composed of one or more codes.
- the present composition, and any two codebooks in the same codebook set, such as codebook a and codebook b, have the following characteristics: the codeword in codebook a has the same total number of modulation symbols as the codeword in codebook b , that is, the codeword in the codebook a is the same as the length of the codeword in the codebook b, that is, the number of resource units multiplexed by the data stream is the same; and the number of codewords in the codebook a and the codebook b The number of codewords is the same, that is, the codebook in the codebook set has the same total number of codewords.
- the codebooks in the codebook set have the same number of codewords, and the number of codewords may be referred to as a modulation order, those skilled in the art may also refer to the modulation order as other Name, therefore in the embodiment of the invention
- the codebook set can be understood to consist of a codebook having a modulation order, and further the codebook has the same length of codewords.
- the network device and the terminal device may further store various modes designed in advance.
- each mode indicates that the network device sends the first downlink data stream and the second downlink data stream to the terminal device.
- the same codebook set that is, in the embodiment of the present invention, the first codebook and the one or more second codebooks belong to the same codebook set; on the other hand, each mode also indicates each code in the codebook set
- the allocation information in the plurality of terminal devices that is, each mode may further indicate codebook information respectively used to send the downlink data stream to each of the sequentially arranged terminal devices, where the codebook information is, for example, a codebook set code. This serial number information, etc.
- the order of the allocation information of the respective codebooks indicated by each mode in the plurality of terminal devices has a corresponding relationship with the first terminal device ranking information; for example, the first codebook information in the codebook allocation information corresponds to The first terminal device, that is, the first codebook information is the codebook information used by the first terminal device.
- the codebook set used by the network device to send the downlink data stream includes six codebooks
- one form of the mode for storing the mode stored by the network device and the terminal device is as shown in Table 3.
- mode 0 may indicate that the network device sends the downlink data stream to the three terminal devices, and uses the codebook set 0, wherein the first terminal device adopts the sequence numbers 0 and 2 in the codebook set 0.
- the network device sends a downlink data stream to the four terminal devices, and uses the codebook set 0, wherein the first terminal device uses the codebooks of sequence numbers 1 and 2 in the codebook set 0, and the second terminal device adopts
- the codebook of the codebook set 0 has the codebooks of sequence numbers 0 and 4, the third terminal device adopts the codebook of sequence number 3 in the codebook set 0, and the fourth terminal device adopts the sequence number of the codebook set 0.
- the codebook allocation information may also be used to indicate the number of terminal devices, where the number of terminal devices may be the actual number of terminals in the data transmission, or may be The maximum number of terminal devices that can be supported by the system.
- the codebook indication information used by the network device to indicate the first codebook and the one or more second codebooks may include first mode information and first terminal device ranking information
- the logical information segment 1 can carry the first mode information, and is used to indicate the first mode.
- the logical information segment 2 can carry the first terminal device ranking information, and is used to indicate that the terminal device is in the multiple terminal devices. Sort.
- each logical information segment of the codebook indication information may be continuously or non-continuously appearing in the instruction in which the codebook indication information is located in any one of the sequential manners. Not limited.
- the terminal device after the terminal device receives the instruction or message carrying the codebook indication information, for example, according to the logical information segment 1 therein, it can be known which mode the network device uses to send the downlink data flow, so that the network device can send the downlink.
- One or more second codebooks enabling the terminal device to determine a codebook used by all data streams carried on the same time-frequency resource, and capable of transmitting the first data stream to the terminal device according to the codebooks
- the decoding is performed, so that the network device and the terminal device can perform downlink data transmission based on the codebook, and can effectively improve the network capacity of the system, including improving the number of accessible users and spectrum efficiency of the system.
- the network device uses mode 0 for downlink data flow transmission, and determines that the terminal device receiving the first downlink data stream ranks second among the three terminal devices, then the network The device only needs to indicate the mode 0 and the sorting information of the terminal device to the terminal device; the terminal device can learn that the network device sends the downlink data stream by using the codebook set 0 according to the received codebook indication information, and the terminal device It can be known that the codebook with sequence number 3 in the codebook set 0 is the first codebook, and the remaining codebooks are the second codebook. Thereby, the terminal device can decode the first downlink data stream sent by the network device to the terminal device.
- the information exchange between the network device and the terminal device enables the terminal device to determine the codebook used by all the data streams carried on the same time-frequency resource, so that the network device and the terminal device can perform downlink based on the codebook.
- Data transmission and can effectively improve the network capacity of the system Volume, including the number of accessible users and spectrum efficiency of the boost system.
- the terminal device only needs to know that the network device sends the first codebook used by the first downlink data stream of the terminal device, and on the same time-frequency resource that carries the first data stream.
- the one or more second codebooks used by the other downlink data streams may be sent, and the specific one or more second codebooks may not be corresponding to which other terminal devices respectively, that is, the network device does not need to be sent to each The codebook used by other terminal devices.
- each logical information segment indicates an index value
- the index value indicated by the logical information segment uniquely determines the corresponding mode, the codebook set, and the codebook through a pre-established correlation index relationship.
- the network device and the terminal device may pre-store the codebook by using various methods, but the following two conditions must be met: First, the network device and the terminal device may learn one according to the stored codebook. The number of resource units or subcarriers or resource particles included in the coding unit; second, the network device and the terminal device can learn, according to the stored codebook, which resource units or subcarriers or resource particles the terminal device will be in a coding unit. Which non-zero modulation symbols are sent.
- a simple and straightforward method of satisfying the above storage conditions is to store the codebook in the form described above, including storing all zero modulation symbols and non-zero modulation symbols of the codeword:
- the codebook used by the variable node 3 in FIG. 2 can be stored as:
- the total number of zero modulation symbols and non-zero modulation symbols in the codeword is the number of resource units or subcarriers or resource particles included in one coding unit, and the position and value of the non-zero modulation symbol are It indicates that the terminal device will send a corresponding non-zero modulation symbol on the resource unit or subcarrier or resource particle corresponding to the location of one coding unit.
- the embodiment of the present invention is only described by using a mode for indicating that the network device sends the same codebook set used by the downlink data stream to the multiple terminal devices, and each codebook in the codebook set is in the The allocation information in the plurality of terminal devices, but the present invention is not limited thereto.
- the mode may also be used to indicate a codebook cluster to which the codebook set belongs.
- the embodiment of the present invention is only described by taking the codebook indication information including the first mode information and the first terminal device ranking information as an example, but the present invention is not limited thereto.
- the codebook indication information may include only the first terminal device ranking information.
- the information exchange between the network device and the terminal device enables the terminal device to determine the codebook used by all the data streams carried on the same time-frequency resource, so that the network device and the terminal device can perform downlink based on the codebook.
- the transmission of data can effectively improve the network capacity of the system, including increasing the number of accessible users and spectrum efficiency of the system.
- the network device uses the codebook in the same codebook set when the network device sends the downlink data stream to each terminal device.
- the network device may also send the downlink data stream to each terminal device.
- the codebooks in different codebook sets are used, which will be described below in conjunction with FIG.
- FIG. 17 shows still another schematic flowchart of a method 230 of determining codebook indication information according to an embodiment of the present invention.
- the determining codebook indication information for indicating the first codebook and the one or more second codebooks includes:
- S237 Determine a second mode, an order of the terminal device in the first data stream and the plurality of terminal devices to which the second data stream belongs, and a codebook set used by each of the plurality of terminal devices.
- the second mode is used to indicate that the first codebook and the second feature matrix to which the one or more second codebooks belong, and the distribution sequence of the feature sequence in the second feature matrix in the plurality of terminal devices
- Each feature matrix corresponds to one or more codebook sets, and the feature matrix is composed of two or more feature sequences, the feature sequence is composed of a zero element and an element, and the zero element represents the corresponding
- the modulation symbols of all the codewords in the codebook at the corresponding positions of the zero elements are all zero modulation symbols, and the 1 element indicates that all the codewords in the corresponding codebook are not all zero modulation symbols at the corresponding positions of the 1 element.
- each codebook set includes at least one codebook, the codebook set satisfies that the codewords in the same codebook set have the same total number of modulation symbols, and the codebooks in the same codebook set have The total number of codewords is the same; wherein each codebook in the codebook set corresponds to each feature sequence in the feature matrix;
- the codebook indication information is determined, where the codebook indication information includes second mode information, second terminal device ranking information, and third codebook set information, where the second mode information is used to indicate the second mode, where The second terminal device ranking information is used to indicate the ordering of the terminal device in the plurality of terminal devices, where the third codebook set information is used to indicate the codebook corresponding to the second feature matrix respectively used by each terminal device set.
- the network device and the terminal device may store a pre-designed codebook, where each codebook may be divided into one or more codebook sets, and each codebook set is composed of one or more codes.
- the present composition, and any two codebooks in the same codebook set, such as codebook a and codebook b, have the following characteristics: the codeword in codebook a has the same total number of modulation symbols as the codeword in codebook b , that is, the codeword in the codebook a is the same as the length of the codeword in the codebook b, that is, the number of resource units multiplexed by the data stream is the same; and the number of codewords in the codebook a and the codebook b The number of codewords is the same, that is, the codebook in the codebook set has the same total number of codewords. Therefore, in the embodiment of the present invention, the codebook set is composed of a codebook having a modulation order, and the codebook has the same codeword length.
- one codebook set can uniquely correspond to one feature matrix; and one feature matrix can correspond to one or more codebook sets, and each codebook set can correspond to one modulation order.
- the network device and the terminal device may further store various modes designed in advance.
- each mode indicates that the network device sends the first downlink data stream and the second downlink data stream to the plurality of terminal devices.
- the same feature matrix is used, that is, in the embodiment of the present invention, the first codebook and the one or more second codebooks correspond to the same feature matrix, and thus, the first codebook and the one or more The two codebooks may have different modulation orders;
- each mode also indicates allocation information of the feature sequences in the feature matrix in the plurality of terminal devices, since in the embodiment of the present invention, the feature matrix corresponds to Each codebook in the codebook set and each feature sequence in the feature matrix Corresponding to the column, the allocation information may also be used to indicate the codebook information used by the terminal device in the codebook set corresponding to the feature matrix used by the terminal device; and on the other hand, each mode indicates that the feature sequence is in multiple terminals. While allocating information in the device, the number of the plurality of terminal
- each codebook in the codebook set respectively corresponds to each feature sequence in the feature matrix may represent the number of codebooks in the codebook set and the feature sequence in the feature matrix.
- the number of the same is the same, which can indicate that the codeword in the codebook has the same total number of modulation symbols as the corresponding number of elements in the corresponding feature sequence; on the other hand, it can also mean that for any one of the feature sequences, At least one codeword is found in the corresponding codebook, such that the modulation symbol of the codeword at the 1 element position is not a zero modulation symbol; for any one of the zero elements in the feature sequence, all codewords in the corresponding codebook are at the zero The modulation symbols for the corresponding positions of the elements are all zero modulation symbols.
- each codebook in the codebook set has a one-to-one correspondence with each feature sequence in the feature matrix, that is, the i-th codebook in the codebook set and the corresponding feature matrix.
- the i-th feature sequence has a correspondence relationship, where i is a natural number and is less than or equal to the number of feature sequences.
- the network device and the terminal device store a form for representing the mode. As shown in Table 4.
- mode 0 may indicate that the network device sends a downlink data stream to three terminal devices, and adopts a feature matrix of 4 rows and 6 columns, and the feature matrix of 4 rows and 6 columns may have corresponding one or more codebooks.
- the set wherein the first terminal device uses the codebook corresponding to the 0th and 1st feature sequence in the feature matrix for data transmission, that is, the 4th row and 6 column feature matrix used by the first terminal is used.
- the 0th and 1st codebooks in the codebook set are used for data transmission, and the second terminal device uses the codebook corresponding to the 3rd and 5th feature sequences in the feature matrix.
- transmission that is, the third and fifth codebooks in the codebook set corresponding to the 4-row and 6-column feature matrices used by the second terminal are used for data transmission, and the third terminal device adopts the first in the feature matrix.
- Two codebooks corresponding to the fourth feature sequence are used for data transmission, that is, data is used for the second and fourth codebooks in the codebook set corresponding to the 4-row and 6-column feature matrices used by the third terminal.
- Transmission; mode 1 may indicate that the network device sends a downlink data stream to four terminal devices, and adopts a feature matrix of 4 rows and 6 columns, wherein the first terminal device adopts the first and second feature sequences in the feature matrix.
- the corresponding codebook performs data transmission
- the second terminal device uses the codebook corresponding to the 0th feature sequence in the feature matrix for data transmission
- the third terminal device adopts the 4th feature sequence in the feature matrix.
- the corresponding codebook performs data transmission
- the fourth terminal device uses the codebook corresponding to the third and fifth feature sequences in the feature matrix for data transmission.
- Other modes can be understood with reference to mode 1.
- the feature matrix of 4 rows and 6 columns corresponds to only one codebook set, the codebook set allocated by each terminal will be the same codebook set.
- the feature sequence allocation information may also be used to indicate the number of terminal devices, where the number of terminal devices may be the actual number of terminals in the data transmission, or the maximum number of terminal devices that the system can support. .
- the codebook indication information determined by the network device may include the second mode information, the second terminal device ranking information, and the third codebook set information, where the logical information segment 1 may carry the second mode.
- the information is used to indicate the second mode; the logical information segment 2 can carry the second terminal device ranking information, which is used to indicate the ordering of the terminal device in the multiple terminal devices; the logical information segment 3 can carry the third code.
- the set information is used to indicate the codebook set corresponding to the second feature matrix used by each terminal device.
- the logical information segment 3 can be optional because if the feature matrix indicated by the second mode is only Corresponding to a codebook set, then the codebook set allocated by each terminal will be the same codebook set, then there is no need to indicate the codebook set corresponding to the second feature matrix used by each terminal separately.
- each logical information segment of the codebook indication information may be continuously or non-continuously appearing in the instruction in which the codebook indication information is located in any one of the sequential manners. Not limited.
- the terminal device after the terminal device receives the instruction or message carrying the codebook indication information, for example, according to the logical information segment 1 therein, it can be known which mode the network device uses to send the downlink data flow, so that the network device can send the downlink.
- the codebook set corresponding to the second feature matrix used by each terminal device can be known.
- the terminal device can further further allocate information according to each feature sequence in the feature matrix in the plurality of terminal devices, and each codebook in the codebook set has a corresponding relationship with each feature sequence in the feature matrix. Determining, by the network device, the first codebook used by the first downlink data stream to be sent by the network device, and the terminal device is also capable of determining one or more used by the second downlink data stream sent by the network device to the other terminal device.
- the second codebook enables the terminal device to determine the codebook used by all the data streams carried on the same time-frequency resource, and can decode the first data stream sent by the network device to the terminal device according to the codebooks, thereby
- the device and the terminal device can perform downlink data transmission based on the codebook, and can effectively improve the network capacity of the system, including improving the number of accessible users and spectrum efficiency of the system.
- the network device determines to transmit the downlink data stream by using mode 0, and determines that the terminal device receiving the first downlink data stream is ranked second among the three terminal devices, and The network device only needs to indicate to the terminal device the mode 0, the order information of the terminal device, and the codebook set adopted by each terminal device; the terminal device is configured according to the codebook set corresponding to the feature matrix.
- the second terminal device can further allocate information according to each feature sequence in the feature matrix in the plurality of terminal devices, and each code in the codebook set Determining the correspondence between each feature sequence in the feature matrix and determining the codebook set used by the second terminal device
- the codebooks of numbers 3 and 5 are the first codebook, and the codebooks with sequence numbers 0 and 1 in the codebook set used by the first terminal device are the second codebook, and the codebooks used by the third terminal device are centralized.
- the codebooks with serial numbers 2 and 4 are the second codebook. Thereby, the terminal device can decode the first downlink data stream sent by the network device to the terminal device.
- the terminal device may not need to determine the codebook set respectively used by each terminal device.
- the information exchange between the network device and the terminal device enables the terminal device to determine the codebook used by all the data streams carried on the same time-frequency resource, thereby the network device and the terminal device.
- the end device can transmit downlink data based on the codebook, and can effectively improve the network capacity of the system, including improving the number of accessible users and spectrum efficiency of the system.
- each logical information segment indicates an index value
- the index relationship of the codebook is such that the network device and the terminal device can uniquely determine the corresponding mode, the feature matrix, the codebook set, and the codebook by using the pre-established correlation index relationship according to the index value indicated by the logical information segment.
- the network device and the terminal device may pre-store the codebook by using various methods, but the following two conditions must be met: First, the network device and the terminal device may learn one according to the stored codebook. The number of resource units or subcarriers or resource particles included in the coding unit; second, the network device and the terminal device can learn, according to the stored codebook, which resource units or subcarriers or resource particles the terminal device will be in a coding unit. Which non-zero modulation symbols are sent.
- a simple and straightforward method of satisfying the above storage conditions is to store the codebook in the form described above, including all zero modulation symbols and non-zero modulation symbols of the stored codeword, which are not described herein for brevity.
- the embodiment of the present invention only uses the second mode information, the second terminal device ranking information, and the third codebook set information as an example, but the present invention is not limited thereto, and the codebook indication The information may also include other information.
- the i-th codebook in the codebook set has a corresponding relationship with the i-th feature sequence in the corresponding feature matrix, where i is a natural number and is less than or equal to the number of feature sequences.
- the number of codebooks in the codebook set may be the same as or different from the number of feature sequences of the feature matrix corresponding to the codebook set.
- the number of codebooks in the codebook set is smaller than the codebook set.
- the number of feature sequences of the corresponding feature matrix is the same as the number of feature sequences of the feature matrix corresponding to the codebook set.
- the method for transmitting the indication information in the embodiment of the present invention determines, by using the network device, the first codebook used to send the first downlink data stream to the terminal device in one or more codebooks, and determines to send the second downlink data stream.
- the terminal device can enable Determining a codebook used by all data streams carried on the same time-frequency resource, and decoding the first data stream sent by the network device to the terminal device according to the codebooks, whereby the network device and the terminal device can be based on the codebook
- the downlink data is transmitted, and the network capacity of the system can be effectively improved, including the number of accessible users and the spectrum efficiency of the system.
- the network device may send the codebook indication information to the terminal device in multiple manners.
- the network device may indicate the terminal device in a dynamic or semi-static manner through a downlink control channel; the network device may also pass The data channel indicates the terminal device in a semi-static manner; the network device can also indicate the terminal device in a static manner through a broadcast channel or a data channel.
- the sending the codebook indication information to the terminal device includes: sending, to the terminal device, a downlink scheduling message, a dedicated high-layer control signaling, or a system broadcast message, the downlink scheduling message, the The dedicated high layer control signaling and the system broadcast message include the codebook indication information.
- the dedicated high layer control signaling includes a radio resource control RRC connection setup message and an RRC connection reconfiguration message. It should be understood that the embodiment of the present invention only uses the dedicated high-layer control signaling, including the RRC connection setup message and the RRC connection reconfiguration message, as an example, but the present invention is not limited thereto, and other dedicated high-layer control signaling may be used to the terminal device. Send the codebook indication message.
- the codebook is a sparse code multiple access SCMA codebook. Further, optionally, the number of zero modulation symbols in the codeword included in the codebook is greater than or equal to the number of non-zero modulation symbols.
- the network device sends the codebook indication information to the terminal device by using at least one of a bit string mode and a table mode.
- the codebook indication information is bit string information.
- the logical information segment in the codebook indication information may have multiple implementation methods, including but not limited to the following:
- Method 1 The logical information segment uses an independent bit string or a bit bitmap to implement the information indication function
- Method 2 a combination indication of multiple logical information segments
- Manner 3 The logical information segment and the message segment indicating the information in the message or the information segment having the other indication function are merged.
- the method for transmitting the indication information in the embodiment of the present invention determines, by using the network device, the first codebook used to send the first downlink data stream to the terminal device in one or more codebooks, and determines to send the second downlink data stream.
- One or more second codebooks used wherein the second downlink data stream is one or more of the time-frequency resources used by the first downlink data stream except the first downlink data stream Downstream data streams, and determining codebook indication information for indicating the first codebook and the one or more second codebooks, and transmitting the codebook indication information to the terminal device, so that the terminal device can determine the same time a codebook used by all data streams carried on the frequency resource, and capable of decoding the first data stream sent by the network device to the terminal device according to the codebooks, whereby the network device and the terminal device can perform downlink data based on the codebook Transmission and can effectively increase the network capacity of the system.
- a method for transmitting indication information according to an embodiment of the present invention is described in detail from the perspective of a network device, wherein a codebook set satisfies that the codewords in the same codebook set have the same total number of modulation symbols. And the codebooks in the same codebook set have the same total number of codewords; a method of transmitting the indication information according to an embodiment of the present invention will be described from the perspective of the terminal device with reference to FIG. 18 to FIG.
- the method 300 for transmitting indication information shown in FIG. 6 can be performed, for example, by a terminal device in a communication system, such as a user equipment.
- the method 300 includes:
- Receive codebook indication information where the codebook indication information is used to indicate that the network device sends the first codebook used by the first downlink data stream, and the network device sends one or more seconds used by the second downlink data stream.
- a codebook where the second downlink data stream is one or more downlink data streams carried on the time-frequency resource used by the first downlink data stream except the first downlink data stream, the codebook It is composed of two or more code words, which are multi-dimensional complex vectors, and are used to represent a mapping relationship between data and at least two modulation symbols, and the mapping relationship may be a direct mapping relationship, and the at least two modulations
- the symbol includes at least one zero modulation symbol and at least one non-zero modulation symbol;
- S320 Determine the first codebook and the one or more second codebooks according to the codebook indication information.
- the data stream may be a downlink data stream, or may be a data stream sent by the network device to the network device.
- the network device allocates or specifies a codebook for one or more downlink data streams to be received of each terminal device; in order to enable the terminal device to The downlink data stream sent by the terminal device is correctly received or decoded.
- the terminal device not only needs to know the codebook used by the network device to send the downlink data stream, but also needs to know the time-frequency resource used by the network device to send the downlink data stream.
- One or more codebooks used to send other downstream data streams are examples of codebook for the network device to send the downlink data stream.
- the network device may determine the first codebook and the one or more second codebooks, and determine codebook indication information for indicating the first codebook and the one or more second codebooks, the first The codebook is a codebook used by the network device to send the first downlink data stream to the terminal device, where the one or more second codebooks are one or more used by the network device to send the second downlink data stream to other terminal devices.
- the codebook indication information may be sent to the terminal device, where the codebook indication information is used to indicate that the terminal device receives the first codebook and the one or more second codebooks used by the first downlink data.
- the terminal device may determine, according to the codebook indication information, a first codebook used by the network device to send the first downlink data stream, and the network device uses the downlink data stream to send the downlink data stream. Transmitting one or more second codebooks used by other downlink data streams on the same time-frequency resource, whereby the terminal device can send the network code device according to the first codebook and the one or more second codebooks A downlink data is received or decoded. Therefore, the information exchange between the network device and the terminal device enables the terminal device to determine the codebook used by all the data streams carried on the same time-frequency resource, so that the network device and the terminal device can perform downlink data based on the codebook. Transmission and can effectively increase the network capacity of the system.
- the method for transmitting the indication information in the embodiment of the present invention determines, by using the network device, the first codebook used to send the first downlink data stream to the terminal device in one or more codebooks, and determines to send the second downlink data stream.
- One or more second codebooks used wherein the second downlink data stream is one or more of the time-frequency resources used by the first downlink data stream except the first downlink data stream Downstream data streams, and determining codebook indication information for indicating the first codebook and the one or more second codebooks, and transmitting the codebook indication information to the terminal device, so that the terminal device can determine the same time
- the codebook decodes the first data stream sent by the network device to the terminal device, so that the network device and the terminal device can perform downlink data transmission based on the codebook, and can effectively improve the network capacity of the system, including improving the system. Number of access users and spectrum efficiency.
- the non-orthogonal multiple access technology transmits a plurality of different data streams on the same resource unit by using the codebook, that is, multiple different data streams multiplex the same resource unit, where different data
- the codebooks used by the streams are different, so as to achieve the purpose of improving the utilization of resources, the data streams may be from the same terminal device or from different terminal devices.
- the non-orthogonal multiple access technology directly maps the data in the data stream to a codeword in the codebook, that is, a multi-dimensional complex vector, to realize extended transmission of data on multiple resource units. It may be binary bit data or multi-dimensional data, and the resource unit may be a resource unit of a time domain, a frequency domain, a spatial domain, a time-frequency domain, a spatio-temporal domain or a time-frequency spatial domain.
- the codebook is composed of two or more codewords
- the codeword is a multi-dimensional complex vector, which is used to represent a mapping relationship between data and at least two modulation symbols, and the mapping relationship may be a direct mapping relationship, the at least two modulation symbols comprising at least one zero modulation symbol and at least one non-zero modulation symbol; each feature matrix consisting of two or more feature sequences, each feature matrix corresponding to one or more codes
- each feature sequence also corresponds to one or more codebooks, and the feature sequence is composed of a zero element and an element, and the zero element indicates that all codewords in the corresponding codebook have modulation symbols at corresponding positions of the zero element.
- a zero modulation symbol, the 1 element indicates that all codewords in the corresponding codebook are not all zero modulation symbols or all non-zero modulation symbols at corresponding positions of the 1 element.
- multiple codebooks may be divided into one or more codebook clusters, and each codebook cluster may include one or more codebooks, for any two codebooks in the same codebook cluster,
- codebook a and codebook b have the following characteristics: the codeword in codebook a has the same total number of modulation symbols as the codeword in codebook b. Therefore, the codebook in the codebook cluster satisfies the same total number of modulation symbols that all codewords have, that is, the lengths of all the codewords are the same, that is, the number of resource units multiplexed by the data stream is the same.
- multiple codebooks may also be divided into one or more codebook sets, and each codebook set may include one or more codebooks, for any two codebooks in the same codebook set,
- the codebook c and the codebook d have the following features: (1) the codeword in the codebook c has the same total number of modulation symbols as the codeword in the codebook d; (2) the codeword in the codebook c The number is the same as the number of codewords in codebook d, that is, the codebook in the codebook set has the same total number of codewords.
- each codebook cluster includes one or more codebook sets, and each codebook set packet Include one or more codebooks, each codebook consisting of two or more codewords, wherein each codebook cluster satisfies that the codewords in the same codebook cluster have the same total number of modulation symbols, each The codebook set satisfies that the codewords in the same codebook set have the same total number of modulation symbols, and the codebooks in the same codebook set have the same total number of codewords.
- the codebook indication information includes the first codebook cluster information, the first codebook set information, and the first indication information, where the first codebook cluster information is used to indicate the first a codebook cluster, the first codebook information is used to indicate a first codebook set in the first codebook cluster, and the first indication information is used to indicate a first codebook in the first codebook set, the first codebook An indication information is further used to indicate one or more second codebook sets in the first codebook cluster, and the one or more second codebooks in the one or more second codebook sets;
- the determining the first codebook and the one or more second codebooks according to the codebook indication information includes:
- each codebook cluster includes at least one codebook set, each codebook set including at least one codebook
- the codebook cluster satisfies that the codewords in the same codebook cluster have the same total number of modulation symbols, and the codebook sets satisfy the same number of modulation symbols in the same codebook set, and the code in the same codebook set.
- the total number of codewords has the same number.
- the network device and the terminal device may store a pre-designed codebook, where each codebook may be divided into one or more codebook sets, and each codebook set is composed of one or more codes.
- the composition, each codebook set corresponds to one modulation order, and any two codebooks in the same codebook set have the following characteristics: the codewords in the same codebook set have the same total number of modulation symbols, and the same codebook set The codebook has the same total number of codewords.
- the one or more codebook sets divided according to the above manner may be further divided into one or more codebook clusters, each codebook cluster being composed of one or more codebook sets, and any two codes in the same codebook cluster.
- the set such as the codebook set A and the codebook set B, has the following feature: the codeword in the codebook set A and the codeword in the codebook set B have the same total number of modulation symbols, that is, all codewords have the same length That is, the number of resource units multiplexed by the data stream is the same. That is, the codebook cluster satisfies that the codewords in the same codebook cluster have the same total number of modulation symbols.
- the terminal device receives the codebook indication information sent by the network device, and may include The first codebook cluster information, the first codebook set information, and the first indication information are included.
- the codebook indication information may be composed of three logical information segments, where the logical information segment 1 may carry the first codebook cluster information, and is used to instruct the terminal device to send the first downlink data stream and the second downlink data stream.
- the first codebook cluster used; the logical information segment 2 may carry the first codebook set information, and is used to instruct the terminal device to send the first codebook set in the first codebook cluster used by the first downlink data stream;
- the logical information segment 3 may be configured to carry the first indication information, where the first indication information is used to indicate the first codebook in the first codebook set, where the first indication information is further used to indicate the One or more second codebook sets, and the one or more second codebooks in the one or more second codebook sets.
- each logical information segment of the codebook indication information may be continuously or non-continuously appearing in the instruction in which the codebook indication information is located in any one of the sequential manners. Not limited.
- the terminal device can learn, according to the logical information segment 1 therein, which codebook in the codebook cluster the network device uses to send the first downlink data stream and the first
- the second downlink data stream is obtained by the terminal device according to the logical information segment 2 therein, and the network device uses the codebook in the codebook cluster indicated by the logical information segment 1 to send the first downlink data stream; the terminal device is configured according to In the logical information segment 3, it can be known which codebook in the codebook set indicated by the logical information segment 2 of the network device sends the first downlink data stream, and further, the terminal device can also learn that the network device uses the code indicated by the logical information segment 1 Which codebook sets in the cluster and which codebooks in the codebook set send the second downlink data stream.
- the information exchange between the network device and the terminal device enables the terminal device to determine the codebook used by all the data streams carried on the same time-frequency resource, so that the network device and the terminal device can perform downlink based on the codebook.
- the transmission of data can effectively improve the network capacity of the system, including increasing the number of accessible users and spectrum efficiency of the system.
- the terminal device may receive the first codebook in the first codebook set indicated by the network device in multiple manners, and the one or more second codebooks in the first codebook cluster And the one or more second codebooks in the one or more second codebook sets are described separately below.
- the first indication information includes: first codebook information, second codebook set information, and second codebook information, where the first codebook information is used to indicate the first The first codebook in a codebook set, the second codebook information is used to indicate the one or more second codebook sets in the first codebook cluster, and the second codebook information is used to indicate the One or more of the second codebook sets One or more second codebooks.
- the logical information segment 3 carrying the first indication information may further include three logical information sub-sections, namely, logical information sub-segment 1, logical information sub-segment 2, and logical information sub-
- the logical information sub-segment 1 can carry the first codebook information for indicating the first codebook in the first codebook set
- the logical information sub-segment 2 can carry the second codebook set information, Instructing the one or more second codebook sets in the first codebook cluster
- the logical information subsection 3 may carry second codebook information for indicating the one of the one or more second codebook sets Or multiple second codebooks.
- the embodiment of the present invention only takes the first indication information including the first codebook information, the second codebook set information, and the second codebook information as an example, but the present invention is not limited thereto.
- the information exchange between the network device and the terminal device enables the terminal device to determine the codebook used by all the data streams carried on the same time-frequency resource, so that the network device and the terminal device can perform downlink based on the codebook.
- the transmission of data can effectively improve the network capacity of the system, including increasing the number of accessible users and spectrum efficiency of the system.
- the first indication information includes M sets of bit string information corresponding to each codebook set in the first codebook cluster, and each set of bit string information is used to indicate corresponding Whether the codebook set belongs to the first codebook set or the one or more second codebook sets, and the codebook set corresponding to the each group of bitstring information belongs to the first codebook set or the one or more
- the group of bit string information is further used to indicate the first codebook or the one or more second codebooks in the corresponding codebook set, where M is the first codebook cluster includes The number of codebook sets.
- each logical information segment indicates an index value
- the corresponding codebook cluster, codebook set and codebook are uniquely determined by the pre-established correlation index relationship according to the index value indicated by the logical information segment.
- the network device and the terminal device may pre-store the codebook by using various methods, and details are not described herein for brevity.
- the method for transmitting the indication information in the embodiment of the present invention determines, by using the network device, the first codebook used to send the first downlink data stream to the terminal device in one or more codebooks, and determines to send the second downlink data stream.
- the codebook indication information of the second codebook is sent to the terminal device, so that the terminal device can determine the codebook used by all the data streams carried on the same time-frequency resource, and can be based on the codebook pairs.
- the first data stream sent by the network device to the terminal device is decoded, so that the network device and the terminal device can perform downlink data transmission based on the codebook, and can effectively improve the network capacity of the system, including the accessible user of the system. Number and spectrum efficiency, etc.
- the codebook indication information includes first mode information and first terminal device ranking information, where the first mode information is used to indicate a first mode, where The first mode is used to indicate that the first codebook and the third codebook set to which the one or more second codebooks belong, and the codebook in the third codebook set are in the first data stream and the second data
- the allocation information in the plurality of terminal devices to which the flow belongs, the first terminal device ranking information is used to indicate the ordering of the terminal device in the plurality of terminal devices;
- the determining the first codebook and the one or more second codebooks according to the codebook indication information includes:
- each codebook set includes at least one codebook, the codebook set satisfies that the codewords in the same codebook set have the same total number of modulation symbols, and the code in the same codebook set The total number of codewords has the same number.
- the network device and the terminal device may store a pre-designed codebook, where each codebook may be divided into one or more codebook sets, and each codebook set is composed of one or more codes.
- the present composition, and any two codebooks in the same codebook set, such as codebook a and codebook b, have the following characteristics: the codeword in codebook a has the same total number of modulation symbols as the codeword in codebook b , that is, the codeword in the codebook a is the same as the length of the codeword in the codebook b, that is, the number of resource units multiplexed by the data stream is the same; and the number of codewords in the codebook a and the codebook b The number of codewords is the same, that is, the codebook in the codebook set has the same total number of codewords.
- the codebooks in the codebook set have the same number of codewords, and the number of codewords may be referred to as a modulation order, those skilled in the art may also refer to the modulation order as other Name, therefore in the embodiment of the invention
- the codebook set can be understood to consist of a codebook having a modulation order, and further the codebook has the same length of codewords.
- the network device and the terminal device may further store various modes designed in advance.
- each mode indicates that the network device sends the first downlink data stream and the second downlink data stream to the terminal device.
- the same codebook set that is, in the embodiment of the present invention, the first codebook and the one or more second codebooks belong to the same codebook set; on the other hand, each mode also indicates each code in the codebook set
- the allocation information in the plurality of terminal devices that is, each mode may also indicate the codebook information respectively used to transmit the downlink data stream to each of the sequentially arranged terminal devices.
- the codebook indication information that is used by the network device to indicate the first codebook and the one or more second codebooks may include the first mode information and the first terminal device ranking information, where
- the logical information segment 1 can carry the first mode information, and is used to indicate the first mode.
- the logical information segment 2 can carry the first terminal device ranking information, and is used to indicate the ordering of the terminal device in the multiple terminal devices.
- each logical information segment of the codebook indication information may be continuously or non-continuously appearing in the instruction in which the codebook indication information is located in any one of the sequential manners. Not limited.
- the terminal device after the terminal device receives the instruction or message carrying the codebook indication information, for example, according to the logical information segment 1 therein, it can be known which mode the network device uses to send the downlink data flow, so that the network device can send the downlink.
- One or more second codebooks enabling the terminal device to determine a codebook used by all data streams carried on the same time-frequency resource, and capable of transmitting the first data stream to the terminal device according to the codebooks
- the decoding is performed, so that the network device and the terminal device can perform downlink data transmission based on the codebook, and can effectively improve the network capacity of the system, including improving the number of accessible users and spectrum efficiency of the system.
- each logical information segment indicates an index value
- Index relationship, codebook set index value, and codebook set in each codebook cluster The index relationship and the index relationship between the codebook index value and the codebook in each codebook set, so that the network device and the terminal device can uniquely determine the index value indicated by the logical information segment through a pre-established correlation index relationship.
- the network device and the terminal device may pre-store the codebook by using various methods, but the following two conditions must be met: First, the network device and the terminal device may learn one according to the stored codebook. The number of resource units or subcarriers or resource particles included in the coding unit; second, the network device and the terminal device can learn, according to the stored codebook, which resource units or subcarriers or resource particles the terminal device will be in a coding unit. Which non-zero modulation symbols are sent.
- a simple and straightforward method of satisfying the above storage conditions is to store the codebook in the form described above, including all zero modulation symbols and non-zero modulation symbols of the stored codeword, which are not described herein for brevity.
- the method for transmitting the indication information in the embodiment of the present invention enables the terminal device to determine the codebook used by all the data streams carried on the same time-frequency resource, and can send the network device to the terminal device according to the codebooks.
- a data stream is decoded, whereby the network device and the terminal device can perform downlink data transmission based on the codebook, and can effectively improve the network capacity of the system, including improving the number of accessible users and spectrum efficiency of the system.
- FIG. 19 shows still another schematic flowchart of a method of transmitting indication information according to another embodiment of the present invention.
- the codebook indication information includes second mode information, second terminal device ranking information, and third codebook set information, where the second mode information is used.
- the second mode is used to indicate that the first codebook and the second feature matrix to which the one or more second codebooks belong, and the feature sequence in the second feature matrix are at the first The data stream and the allocation information in the plurality of terminal devices to which the second data stream belongs, the second terminal device ranking information is used to indicate the ordering of the terminal device in the plurality of terminal devices, and the third codebook set information is used And a codebook set corresponding to the second feature matrix respectively used by each of the plurality of terminal devices;
- the determining the first codebook and the one or more second codebooks according to the codebook indication information includes:
- each codebook set includes at least one codebook, the codebook set satisfies that the codewords in the same codebook set have the same total number of modulation symbols, and the code in the same codebook set The total number of codewords has the same number; wherein each codebook in the codebook set corresponds to each feature sequence in the feature matrix.
- the network device and the terminal device may store a pre-designed codebook, where each codebook may be divided into one or more codebook sets, and each codebook set is composed of one or more codes.
- the present composition, and any two codebooks in the same codebook set, such as codebook a and codebook b, have the following characteristics: the codeword in codebook a has the same total number of modulation symbols as the codeword in codebook b , that is, the codeword in the codebook a is the same as the length of the codeword in the codebook b, that is, the number of resource units multiplexed by the data stream is the same; and the number of codewords in the codebook a and the codebook b The number of codewords is the same, that is, the codebook in the codebook set has the same total number of codewords. Therefore, in the embodiment of the present invention, the codebook set is composed of a codebook having a modulation order, and the codebook has the same codeword length.
- one codebook set can uniquely correspond to one feature matrix; and one feature matrix can correspond to one or more codebook sets, and each codebook set can correspond to one modulation order.
- the network device and the terminal device may further store various modes designed in advance.
- each mode indicates that the network device sends the first downlink data stream and the second downlink data stream to the plurality of terminal devices.
- the same feature matrix is used, that is, in the embodiment of the present invention, the first codebook and the one or more second codebooks correspond to the same feature matrix, and thus, the first codebook and the one or more The two codebooks may have different modulation orders; on the other hand, each mode also indicates allocation information of the feature sequences in the feature matrix in the plurality of terminal devices, since in the embodiment of the present invention, the codebooks are concentrated
- Each codebook corresponds to each feature sequence in the feature matrix, and thus the allocation information can also be used to indicate the codebook information used by the terminal device in the corresponding codebook set; on the other hand, each mode is in the indication feature.
- the sequence may also indicate the number of the plurality of terminal devices while the information is distributed among the plurality of terminal devices.
- the codebook indication information determined by the network device may include second mode information, second terminal device ranking information, and third codebook set information, where the logical information segment 1 may The second mode information is carried to indicate the second mode; the logical information segment 2 can carry the second terminal device ranking information, which is used to indicate the ordering of the terminal device in the multiple terminal devices; the logical information segment 3 can The third codebook set information is carried, and is used to indicate a codebook set corresponding to the second feature matrix used by each terminal device.
- each logical information segment of the codebook indication information may be continuously or non-continuously appearing in the instruction in which the codebook indication information is located in any one of the sequential manners. Not limited.
- the terminal device after the terminal device receives the instruction or message carrying the codebook indication information, for example, according to the logical information segment 1 therein, it can be known which mode the network device uses to send the downlink data flow, so that the network device can send the downlink.
- the codebook set is arranged, the codebook set.
- the logical information segment 3 may be optional, because if the feature matrix indicated by the mode corresponds to only one codebook set, then the codebook set allocated by each terminal will be the same codebook set, then no indication is needed. A codebook set corresponding to the second feature matrix used by each terminal.
- the terminal device can further further allocate information according to each feature sequence in the feature matrix in the plurality of terminal devices, and each codebook in the codebook set has a corresponding relationship with each feature sequence in the feature matrix. Determining, by the network device, the first codebook used by the first downlink data stream to be sent by the network device, and the terminal device is also capable of determining one or more used by the second downlink data stream sent by the network device to the other terminal device.
- the second codebook enables the terminal device to determine the codebook used by all the data streams carried on the same time-frequency resource, and can decode the first data stream sent by the network device to the terminal device according to the codebooks, thereby
- the device and the terminal device can perform downlink data transmission based on the codebook, and can effectively improve the network capacity of the system, including improving the number of accessible users and spectrum efficiency of the system.
- the information exchange between the network device and the terminal device enables the terminal device to determine the codebook used by all the data streams carried on the same time-frequency resource, so that the network device and the terminal device can perform downlink based on the codebook.
- the transmission of data can effectively improve the network capacity of the system, including increasing the number of accessible users and spectrum efficiency of the system.
- each codebook in the codebook set respectively corresponds to each feature sequence in the feature matrix may represent the number of codebooks in the codebook set and the feature sequence in the feature matrix.
- the number of the same is the same, that is, the codeword in the codebook has the same total number of modulation symbols as the corresponding number of elements in the corresponding feature sequence; on the other hand, it can also indicate that any one of the elements in the feature sequence can correspond to At least one codeword is found in the codebook such that the modulation symbol of the codeword at the 1 element position is not a zero modulation symbol; for any one of the zero elements in the signature sequence, all codewords in the corresponding codebook are at the zero element The modulation symbols at the corresponding locations are all zero modulation symbols.
- each logical information segment indicates an index value
- the index relationship of the codebook is such that the network device and the terminal device can uniquely determine the corresponding mode, the feature matrix, the codebook set, and the codebook by using the pre-established correlation index relationship according to the index value indicated by the logical information segment.
- the network device and the terminal device may pre-store the codebook by using various methods, and details are not described herein for brevity.
- each codebook in the codebook set has a one-to-one correspondence with each feature sequence in the feature matrix, that is, the i-th codebook in the codebook set and the corresponding feature matrix.
- the i-th feature sequence has a correspondence relationship, where i is a natural number and is less than or equal to the number of feature sequences.
- the number of codebooks in the codebook set may be the same as or different from the number of feature sequences of the feature matrix corresponding to the codebook set.
- the number of codebooks in the codebook set is smaller than the codebook set.
- the number of feature sequences of the corresponding feature matrix is the same as the number of feature sequences of the feature matrix corresponding to the codebook set.
- the codebook indication information sent by the receiving network device includes: receiving a downlink scheduling message, a dedicated high-layer control signaling, or a system broadcast message sent by the network device, the downlink scheduling message, the The dedicated high layer control signaling and the system broadcast message include the codebook indication information.
- the dedicated high-level control signaling includes radio resource control.
- RRC Connection Setup message and RRC Connection Reconfiguration message includes radio resource control.
- the terminal device may receive the codebook indication information that is sent by the network device in at least one of a bit string manner and a table manner.
- the codebook indication information is bit string information.
- the codebook is a sparse code multiple access SCMA codebook. Further, optionally, the number of zero modulation symbols in the codeword included in the codebook is greater than or equal to the number of non-zero modulation symbols.
- the method for transmitting the indication information in the embodiment of the present invention enables the terminal device to determine the codebook used by all the data streams carried on the same time-frequency resource, and can send the network device to the terminal device according to the codebooks.
- a data stream is decoded, whereby the network device and the terminal device can perform downlink data transmission based on the codebook, and can effectively improve the network capacity of the system, including improving the number of accessible users and spectrum efficiency of the system.
- a method for transmitting indication information according to an embodiment of the present invention is described in detail above with reference to FIG. 16 to FIG. 19, and a transmission indication information according to an embodiment of the present invention will be described below with reference to FIGS. 20 to 22, 14, and 15. Device.
- the apparatus 500 for transmitting indication information shown in FIG. 9 includes: a first determining module 510, a second determining module 520, a third determining module 530, and a sending module 540, where
- a first determining module 510 configured to determine, in one or more codebooks, a first codebook used to send a first downlink data stream to a terminal device, where the codebook is composed of two or more codewords, where The codeword is a multi-dimensional complex vector for indicating a mapping relationship between data and at least two modulation symbols, and the mapping relationship may be a direct mapping relationship, the at least two modulation symbols including at least one zero modulation symbol and at least one non-zero modulation symbol;
- the second determining module 520 is configured to determine one or more second codebooks used for sending the second downlink data stream, where the second downlink data stream is carried on a time-frequency resource used by the first downlink data stream.
- One or more downstream data streams in addition to the first downstream data stream;
- a third determining module 530 configured to determine the first part that is used by the first determining module 510 to determine a codebook and the codebook indication information of the one or more second codebooks determined by the second determining module 520;
- the sending module 540 is configured to send the codebook indication information determined by the third determining module 530 to the terminal device.
- the apparatus for transmitting the indication information in the embodiment of the present invention determines, by the network device, the first codebook used for transmitting the first downlink data stream to the terminal device in one or more codebooks, and determines to send the second downlink data stream.
- One or more second codebooks used wherein the second downlink data stream is one or more of the time-frequency resources used by the first downlink data stream except the first downlink data stream Downstream data streams, and determining codebook indication information for indicating the first codebook and the one or more second codebooks, and transmitting the codebook indication information to the terminal device, so that the terminal device can determine the same time a codebook used by all data streams carried on the frequency resource, and capable of decoding the first data stream sent by the network device to the terminal device according to the codebooks, whereby the network device and the terminal device can perform downlink data based on the codebook Transmission and can effectively increase the network capacity of the system.
- the third determining module 530 includes:
- a first determining unit 531 configured to determine a first codebook set to which the first codebook belongs, one or more second codebook sets to which the one or more second codebooks belong, and the first codebook set And a first codebook cluster to which the one or more second codebook sets belong, wherein each codebook cluster includes at least one codebook set, and each of the codebook sets includes at least one codebook, the codebook cluster
- the codewords in the same codebook cluster satisfy the same total number of modulation symbols, the codebook set satisfies that the codewords in the same codebook set have the same total number of modulation symbols, and the codebooks in the same codebook set have the total codewords. The same amount;
- the second determining unit 532 is configured to determine the codebook indication information, where the codebook indication information includes first codebook cluster information, first codebook set information, and first indication information, where the first codebook cluster information is used by Instructing the first codebook cluster, the first codebook set information is used to indicate the first codebook set in the first codebook cluster, and the first indication information is used to indicate the first codebook set.
- a first codebook where the first indication information is further used to indicate the one or more second codebook sets in the first codebook cluster, and the one or more of the one or more second codebook sets The second codebook.
- the first indication information determined by the second determining unit 532 includes: first codebook information, second codebook set information, and second codebook information, where the first The codebook information is used to indicate the first codebook in the first codebook set, where the second codebook set information is used to indicate the one or more second codebook sets in the first codebook cluster, the first Two codebook information is used to indicate the one The one or more second codebooks in the set of one or more second codebooks.
- the first indication information determined by the second determining unit 532 includes M sets of bit string information corresponding to each codebook set in the first codebook cluster, and each The group bit string information is used to indicate whether the corresponding codebook set belongs to the first codebook set or the one or more second codebook sets, and the codebook set corresponding to the each group of bit string information belongs to the first code.
- the set of bit string information is further used to indicate the first codebook or the one or more second codebooks in the corresponding codebook set, where The number of codebook sets included in the first codebook cluster.
- the third determining module 530 includes:
- a fifth determining unit 535 configured to determine a first mode and an order of the terminal device in the plurality of terminal devices to which the first data stream and the second data stream belong, the first mode being used to indicate the first codebook a third codebook set to which the one or more second codebooks belong, and allocation information of the codebooks in the third codebook set in the plurality of terminal devices; wherein each codebook set includes at least one of the a codebook, the codebook set satisfies that the codewords in the same codebook set have the same total number of modulation symbols, and the codebooks in the same codebook set have the same total number of codewords;
- a sixth determining unit 536 configured to determine the codebook indication information, where the codebook indication information includes first mode information and first terminal device ranking information, where the first mode information is used to indicate the first mode, where A terminal device ranking information is used to indicate the ordering of the terminal device in the plurality of terminal devices.
- the third determining module 530 includes:
- a seventh determining unit 537 configured to determine a second mode, an order of the terminal device in the first data stream and the plurality of terminal devices to which the second data stream belongs, and each of the plurality of terminal devices a codebook set, the second mode is used to indicate that the first codebook and the second feature matrix to which the one or more second codebooks belong, and the feature sequence in the second feature matrix are in the multiple terminals
- the allocation information in the device wherein each feature matrix corresponds to one or more codebook sets, the feature matrix is composed of two or more feature sequences, the feature sequence is composed of zero elements and 1 element, the zero element
- the modulation symbols representing all the codewords in the corresponding codebook at the corresponding positions of the zero elements are all zero modulation symbols, and the 1 element indicates that all the codewords in the corresponding codebook have incomplete modulation symbols at corresponding positions of the 1 element.
- each codebook set includes at least one codebook, the codebook set satisfies that the codewords in the same codebook set have the same total number of modulation symbols, and the same codebook The same total number of code words in this code having; wherein the codebook set Each codebook corresponds to each feature sequence in the feature matrix;
- the eighth determining unit 538 is configured to determine the codebook indication information, where the codebook indication information includes second mode information, second terminal device ranking information, and third codebook set information, where the second mode information is used to indicate In the second mode, the second terminal device ranking information is used to indicate the ordering of the terminal device in the multiple terminal devices, where the third codebook set information is used to indicate that each of the terminal devices respectively uses the second device
- the codebook set corresponding to the feature matrix may be optional for the reasons described above.
- apparatus 500 may correspond to the network device in the method embodiment of the present invention, and the above and other operations and/or functions of the respective modules in the apparatus 500 are respectively implemented in order to implement FIG. 3 to FIG.
- the corresponding flows of the respective methods 200 in FIG. 16 and FIG. 17 are not described herein again for the sake of brevity.
- the apparatus for transmitting the indication information in the embodiment of the present invention determines, by the network device, the first codebook used for transmitting the first downlink data stream to the terminal device in one or more codebooks, and determines to send the second downlink data stream.
- One or more second codebooks used wherein the second downlink data stream is one or more of the time-frequency resources used by the first downlink data stream except the first downlink data stream Downstream data streams, and determining codebook indication information for indicating the first codebook and the one or more second codebooks, and transmitting the codebook indication information to the terminal device, so that the terminal device can determine the same time a codebook used by all data streams carried on the frequency resource, and capable of decoding the first data stream sent by the network device to the terminal device according to the codebooks, whereby the network device and the terminal device can perform downlink data based on the codebook Transmission and can effectively increase the network capacity of the system.
- an apparatus for transmitting indication information according to an embodiment of the present invention is described in detail from a network device side.
- the transmission indication information according to an embodiment of the present invention will be described in detail from the terminal device side with reference to FIG. Device.
- the apparatus 600 for transmitting indication information shown in FIG. 12 includes: a receiving module 610, a determining module 620, and a decoding module 630, where
- the receiving module 610 is configured to receive codebook indication information, where the codebook indication information is used to indicate that the network device sends the first codebook used by the first downlink data stream, and the network device sends the second downlink data stream to use one or a plurality of second codebooks, where the second downlink data stream is one or more downlink data streams carried on the time-frequency resource used by the first downlink data stream except the first downlink data stream
- the codebook is composed of two or more codewords, which are multidimensional complex vectors. For indicating a mapping relationship between data and at least two modulation symbols, the mapping relationship may be a direct mapping relationship, the at least two modulation symbols including at least one zero modulation symbol and at least one non-zero modulation symbol;
- a determining module 620 configured to determine the first codebook and the one or more second codebooks according to the codebook indication information received by the receiving module 610;
- the decoding module 630 is configured to decode the received first downlink data stream according to the first codebook and the one or more second codebooks determined by the determining module 620.
- the apparatus for transmitting the indication information in the embodiment of the present invention determines, by the network device, the first codebook used for transmitting the first downlink data stream to the terminal device in one or more codebooks, and determines to send the second downlink data stream.
- One or more second codebooks used wherein the second downlink data stream is one or more of the time-frequency resources used by the first downlink data stream except the first downlink data stream Downstream data streams, and determining codebook indication information for indicating the first codebook and the one or more second codebooks, and transmitting the codebook indication information to the terminal device, so that the terminal device can determine the same time a codebook used by all data streams carried on the frequency resource, and capable of decoding the first data stream sent by the network device to the terminal device according to the codebooks, whereby the network device and the terminal device can perform downlink data based on the codebook Transmission and can effectively increase the network capacity of the system.
- the codebook indication information received by the receiving module 610 includes first codebook cluster information, first codebook set information, and first indication information, where The first codebook cluster information is used to indicate a first codebook cluster, where the first codebook set information is used to indicate a first codebook set in the first codebook cluster, and the first indication information is used to indicate the first codebook set.
- the first codebook cluster information is used to indicate a first codebook cluster
- the first codebook set information is used to indicate a first codebook set in the first codebook cluster
- the first indication information is used to indicate the first codebook set.
- the first indication information is further used to indicate one or more second codebook sets in the first codebook cluster, and the one or more second codebook sets One or more second codebooks;
- the determining module 620 includes: a first determining unit 621, configured to determine, according to the first codebook cluster information, the first codebook set information, and the first indication information, the first part included in the first codebook cluster The first codebook in a codebook set and the one or more second codebooks in the one or more second codebook sets included in the first codebook cluster, wherein each codebook cluster includes at least a codebook set, each of the codebook sets includes at least one codebook, the codebook clusters satisfying that the codewords in the same codebook cluster have the same total number of modulation symbols, and the codebook set satisfies the code in the same codebook set.
- the word has the same total number of modulation symbols, and the codebooks in the same codebook set have the same total number of codewords.
- the first indication information packet received by the receiving module 610 The first codebook information, the second codebook information, and the second codebook information, where the first codebook information is used to indicate the first codebook in the first codebook set, the second codebook The set information is used to indicate the one or more second codebook sets in the first codebook cluster, the second codebook information is used to indicate the one or more first ones of the one or more second codebook sets Two yards.
- the first indication information received by the receiving module 610 includes M groups of bit string information corresponding to each codebook set in the first codebook cluster, each group of bits.
- the string information is used to indicate whether the corresponding codebook set belongs to the first codebook set or the one or more second codebook sets, and the codebook set corresponding to the each group of bit string information belongs to the first codebook set.
- the each group of bit string information is further used to indicate the first codebook or the one or more second codebooks in the corresponding codebook set, where M is the The number of codebook sets included in the first codebook cluster.
- the codebook indication information received by the receiving module 610 includes first mode information and first terminal device ranking information, where the first mode information is used. Instructing the first mode, the first mode is used to indicate that the first codebook and the third codebook set to which the one or more second codebooks belong, and the codebook in the third codebook set are in the first data And the allocation information in the plurality of terminal devices to which the second data stream belongs, the first terminal device ranking information is used to indicate the ordering of the terminal device in the multiple terminal devices;
- the determining module 620 includes: a third determining unit 623, configured to determine, according to the first mode information and the first terminal device ranking information, in the third codebook set indicated by the first mode, The first codebook corresponding to the terminal device ranking information, and the one or more second codebooks, wherein each codebook set includes at least one codebook, the codebook set satisfies the codewords in the same codebook set The total number of modulation symbols is the same, and the codebooks in the same codebook set have the same total number of codewords.
- the codebook indication information received by the receiving module 610 includes second mode information, second terminal device ranking information, and third codebook set information, where
- the second mode information is used to indicate a second mode, where the second mode is used to indicate that the first codebook and the second feature matrix to which the one or more second codebooks belong, and the second feature matrix
- the distribution information of the feature sequence in the plurality of terminal devices to which the first data stream and the second data stream belong, the second terminal device ranking information is used to indicate the ordering of the terminal device in the plurality of terminal devices, the
- the third codebook set information is used to indicate a codebook set corresponding to the second feature matrix respectively used by each of the plurality of terminal devices; wherein the third codebook set information may be optional
- the reason is as described above.
- the determining module 620 includes: a fourth determining unit 624, configured to, according to the second mode information, the second terminal device ranking information, and the third codebook set information, in the second indicated by the second mode Determining, in the one or more codebook sets corresponding to the feature matrix, the first codebook corresponding to the second terminal device ranking information, and the one or more second codebooks, wherein each feature matrix corresponds to one or more a codebook set consisting of two or more feature sequences consisting of a zero element and an element, the zero element indicating that all codewords in the corresponding codebook correspond to the zero element
- the modulation symbols of the location are all zero modulation symbols, and the 1 element indicates that all the codewords in the corresponding codebook are not all zero modulation symbols or all non-zero modulation symbols at the corresponding positions of the 1 element; each codebook The set includes at least one codebook, the codebook set satisfies that the codewords in the same codebook set have the same total number of modulation symbols, and the codebooks
- the apparatus 600 for transmitting indication information may correspond to the terminal apparatus in the method embodiment of the present invention, and the above and other operations and/or functions of the respective modules in the apparatus 600 are respectively implemented in order to implement FIG.
- the corresponding processes of the respective methods 300 in FIG. 8, FIG. 18 and FIG. 19 are not described herein again for the sake of brevity.
- the apparatus for transmitting the indication information in the embodiment of the present invention determines, by the network device, the first codebook used for transmitting the first downlink data stream to the terminal device in one or more codebooks, and determines to send the second downlink data stream.
- One or more second codebooks used wherein the second downlink data stream is one or more of the time-frequency resources used by the first downlink data stream except the first downlink data stream Downstream data streams, and determining codebook indication information for indicating the first codebook and the one or more second codebooks, and transmitting the codebook indication information to the terminal device, so that the terminal device can determine the same time a codebook used by all data streams carried on the frequency resource, and capable of decoding the first data stream sent by the network device to the terminal device according to the codebooks, whereby the network device and the terminal device can perform downlink data based on the codebook Transmission and can effectively increase the network capacity of the system.
- the apparatus 800 for transmitting indication information shown in FIG. 14 includes a processor 810, a memory 820, a bus system 830, and a transmitter 840.
- the processor 810 determines codebook indication information for indicating the first codebook and the one or more second codebooks, including:
- each codebook cluster includes at least one codebook set, each codebook set includes at least one codebook, and the codebook cluster satisfies code in the same codebook cluster
- the word has the same total number of modulation symbols, the codebook set satisfies that the codewords in the same codebook set have the same total number of modulation symbols, and the codebooks in the same codebook set have the same total number of codewords;
- the codebook indication information includes the first codebook cluster information, the first codebook set information, and the first indication information, where the first codebook cluster information is used to indicate the first codebook cluster
- the first codebook information is used to indicate the first codebook set in the first codebook cluster
- the first indication information is used to indicate the first codebook in the first codebook set
- the first codebook is further used to indicate the one or more second codebook sets in the first codebook cluster, and the one or more second codebooks in the one or more second codebook sets.
- the first indication information determined by the processor 810 includes: first codebook information, second codebook set information, and second codebook information, where the first codebook information is used by Instructing the first codebook in the first codebook set, the second codebook set information is used to indicate the one or more second codebook sets in the first codebook cluster, the second codebook information And indicating the one or more second codebooks in the one or more second codebook sets.
- the first indication information determined by the processor 810 includes M sets of bit string information corresponding to each codebook set in the first codebook cluster, each set of bit string information. And indicating whether the corresponding codebook set belongs to the first codebook set or the one or more second codebook sets, and the codebook set corresponding to the each group of bit string information belongs to the first codebook set or the The one or more second codebooks are further used to indicate the first codebook or the one or more second codebooks in the corresponding codebook set, where M is the first The number of codebook sets included in the codebook cluster.
- the processor 810 determines codebook indication information for indicating the first codebook and the one or more second codebooks, including:
- each codebook set includes at least one codebook, the codebook set satisfies The codewords in the same codebook set have the same total number of modulation symbols, and the codebooks in the same codebook set have The total number of codewords is the same;
- Determining the codebook indication information where the code mode indication information includes the first mode information and the first terminal device ranking information, where the first mode information is used to indicate the first mode, and the first terminal device ranking information is used to indicate The ordering of the terminal device in the plurality of terminal devices.
- the processor 810 determines codebook indication information for indicating the first codebook and the one or more second codebooks, including:
- each feature matrix corresponds to one or more codebook sets, the feature matrix consisting of two or more feature sequences consisting of zero elements and 1 element, the zero elements representing the corresponding codebook
- the modulation symbols of all codewords at corresponding positions of the zero element are all zero modulation symbols
- the 1 element indicates that all codewords in the corresponding codebook are not all zero modulation symbols at the corresponding positions of the 1 element or all are non- a zero modulation symbol
- each codebook set includes at least one codebook, the codebook set satisfies that the codewords in the same codebook set have the same total number of modulation symbols, and
- the codebook indication information includes second mode information, second terminal device ranking information, and third codebook set information, wherein the second mode information is used to indicate the second mode, the second mode
- the terminal device ranking information is used to indicate the order of the terminal device in the plurality of terminal devices
- the third codebook set information is used to indicate the codebook set corresponding to the second feature matrix respectively used by each terminal device.
- the third codebook information may be optional for the reasons described above.
- the apparatus 800 for transmitting indication information may correspond to the network device and the apparatus 500 in the embodiment of the present invention, and may correspond to executing a corresponding body in the method according to an embodiment of the present invention, and the apparatus 800
- the above and other operations and/or functions of the respective modules in order to implement the respective processes of the respective methods in FIG. 3 to FIG. 5, FIG. 16 and FIG. 17 are omitted for brevity.
- the apparatus for transmitting the indication information in the embodiment of the present invention determines, by the network device, the first codebook used for transmitting the first downlink data stream to the terminal device in one or more codebooks, and determines to send the second downlink data stream.
- the codebook indication information of the second codebook is sent to the terminal device, so that the terminal device can determine the codebook used by all the data streams carried on the same time-frequency resource, and can be based on the codebook pairs.
- the first data stream sent by the network device to the terminal device is decoded, whereby the network device and the terminal device can perform downlink data transmission based on the codebook, and can effectively improve the network capacity of the system.
- the apparatus 900 for transmitting indication information shown in FIG. 15 includes a processor 910, a memory 920, a bus system 930, and a receiver 940.
- the codebook indication information received by the receiver 940 includes first codebook cluster information, first codebook set information, and first indication information, where the first codebook cluster information is used. Instructing the first codebook cluster, the first codebook set information is used to indicate a first codebook set in the first codebook cluster, and the first indication information is used to indicate the first code in the first codebook set. The first indication information is further used to indicate one or more second codebook sets in the first codebook cluster, and the one or more second codebooks in the one or more second codebook sets. ;
- the processor 910 determines the first codebook and the one or more second codebooks according to the codebook indication information, including:
- each codebook cluster includes at least one codebook set, each codebook set including at least one codebook
- the codebook cluster satisfies the same number of modulation symbols in the same codebook cluster, and the codebook set satisfies any two codebooks in the same codebook set.
- the modulation symbols for all codewords are zero modulation symbols.
- the locations are the same; or the codebooks satisfying the same codebook set have the same total number of modulation symbols, and the codebooks in the same codebook set have the same total number of codewords.
- the first indication information received by the receiver 940 includes: first codebook information, second codebook set information, and second codebook information, where the first codebook information is used by Instructing the first codebook in the first codebook set, the second codebook set information is used to indicate the one or more second codebook sets in the first codebook cluster, the second codebook information And indicating the one or more second codebooks in the one or more second codebook sets.
- the first indication information received by the receiver 940 includes Each set of codebooks in the first codebook cluster has one-to-one corresponding M sets of bit string information, and each set of bit string information is used to indicate whether the corresponding codebook set belongs to the first codebook set or the one or more The second codebook set, when the codebook set corresponding to the each group of bit string information belongs to the first codebook set or the one or more second codebook sets, the group of bit string information is further used to indicate corresponding The first codebook or the one or more second codebooks in the codebook set, where M is the number of codebook sets included in the first codebook cluster.
- the codebook indication information received by the receiver 940 includes first mode information and first terminal device ranking information, where the first mode information is used to indicate a first mode, where the first mode The mode is used to indicate that the first codebook and the third codebook set to which the one or more second codebooks belong, and the codebook in the third codebook set belong to the first data stream and the second data stream
- the allocation information in the plurality of terminal devices, the first terminal device ranking information is used to indicate the ordering of the terminal device in the plurality of terminal devices;
- the processor 910 determines the first codebook and the one or more second codebooks according to the codebook indication information, including:
- each codebook set includes at least one codebook, the codebook set satisfies that the codewords in the same codebook set have the same total number of modulation symbols, and the codebooks in the same codebook set have The total number of codewords is the same.
- the codebook indication information received by the receiver 940 includes second mode information, second terminal device ranking information, and third codebook set information, where the second mode information is used to indicate a second mode, the second mode is used to indicate that the first codebook and the second feature matrix to which the one or more second codebooks belong, and the feature sequence in the second feature matrix are in the first data stream And the allocation information in the plurality of terminal devices to which the second data stream belongs, the second terminal device ranking information is used to indicate the ordering of the terminal device in the plurality of terminal devices, where the third codebook set information is used to indicate a codebook set corresponding to the second feature matrix respectively used by each of the plurality of terminal devices; wherein the third codebook set information may be optional for the reasons described above.
- the processor 910 determines the first codebook and the one or more second codebooks according to the codebook indication information, including:
- each feature matrix corresponds to one or more codebook sets
- the feature matrix is composed of two or Composing two or more feature sequences
- the feature sequence is composed of a zero element and an element
- the zero element indicates that all code words in the corresponding codebook have zero modulation symbols at corresponding positions of the zero element
- the 1 The element indicates that all codewords in the corresponding codebook are not all zero modulation symbols or all non-zero modulation symbols at corresponding positions of the 1 element
- each codebook set includes at least one codebook, the codebook set The codewords satisfying the same codebook set have the same total number of modulation symbols, and the codebooks in the same codebook set have the same total number of codewords; wherein each codebook in the codebook set and
- the apparatus 900 for transmitting indication information may correspond to the terminal apparatus and apparatus 600 in the embodiment of the present invention, and may correspond to a corresponding subject in a method according to an embodiment of the present invention, and the apparatus 900
- the above and other operations and/or functions of the respective modules in order to implement the respective processes of the respective methods in FIG. 6 to FIG. 8, FIG. 18 and FIG. 19 are omitted for brevity.
- the apparatus for transmitting the indication information in the embodiment of the present invention determines, by the network device, the first codebook used for transmitting the first downlink data stream to the terminal device in one or more codebooks, and determines to send the second downlink data stream.
- One or more second codebooks used wherein the second downlink data stream is one or more of the time-frequency resources used by the first downlink data stream except the first downlink data stream Downstream data streams, and determining codebook indication information for indicating the first codebook and the one or more second codebooks, and transmitting the codebook indication information to the terminal device, so that the terminal device can determine the same time a codebook used by all data streams carried on the frequency resource, and capable of decoding the first data stream sent by the network device to the terminal device according to the codebooks, whereby the network device and the terminal device can perform downlink data based on the codebook Transmission and can effectively increase the network capacity of the system.
- system and “network” are used interchangeably herein.
- the term “and/or” in this context is merely an association describing the associated object, indicating that there may be three relationships, for example, A and / or B, which may indicate that A exists separately, and both A and B exist, respectively. B these three situations.
- the character "/" in this article generally indicates that the contextual object is an "or" relationship.
- B corresponding to A means that B is associated with A, and root According to A, B can be determined.
- determining B from A does not mean that B is only determined based on A, and that B can also be determined based on A and/or other information.
- a component can be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer.
- an application running on a computing device and a computing device can be a component.
- One or more components can reside within a process and/or execution thread, and the components can be located on one computer and/or distributed between two or more computers.
- these components can execute from various computer readable media having various data structures stored thereon.
- a component may, for example, be based on signals having one or more data packets (eg, data from two components interacting with another component between the local system, the distributed system, and/or the network, such as the Internet interacting with other systems) Communicate through local and/or remote processes.
- data packets eg, data from two components interacting with another component between the local system, the distributed system, and/or the network, such as the Internet interacting with other systems
- the term "article of manufacture” as used in this application encompasses a computer program accessible from any computer-readable device, carrier, or media.
- the computer readable medium may include, but is not limited to, a magnetic storage device (for example, a hard disk, a floppy disk, or a magnetic tape), and an optical disk (for example, a CD (Compact Disk), a DVD (Digital Versatile Disk). Etc.), smart cards and flash memory devices (eg, EPROM (Erasable Programmable Read-Only Memory), cards, sticks or key drivers, etc.).
- various storage media described herein can represent one or more devices and/or other machine-readable media for storing information.
- the term "machine-readable medium” may include, without limitation, a wireless channel and various other mediums capable of storing, containing, and/or carrying instructions and/or data.
- the disclosed systems, devices, and methods may be implemented in other manners.
- the device embodiments described above are merely illustrative.
- the division of the unit is only a logical function division.
- there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
- the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, or an electrical, mechanical or other form of connection.
- the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present invention.
- each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
- the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
- the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
- the technical solution of the present invention contributes in essence or to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium.
- a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
- the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .
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Abstract
Description
模式 | 码本集 | 码本分配信息 |
0 | 0 | {{0,2},{3},{1,4,5}} |
1 | 0 | {{1,2},{0,4},{3},{5}} |
… | … | … |
模式 | 特征矩阵 | 特征序列分配信息 |
0 | 4×6 | {{0,1},{3,5},{2,4}} |
1 | 4×6 | {{1,2},{0},{4},{3,5}} |
… | … | … |
Claims (100)
- 一种传输指示信息的方法,其特征在于,包括:在一个或多个码本中确定向终端设备发送第一下行数据流使用的第一码本,所述码本由两个或两个以上的码字组成,所述码字为多维复数向量,用于表示数据与至少两个调制符号之间的映射关系,所述至少两个调制符号包括至少一个零调制符号和至少一个非零调制符号;确定发送第二下行数据流使用的一个或多个第二码本,其中,所述第二下行数据流为所述第一下行数据流所使用的时频资源上承载的除了所述第一下行数据流之外的一个或多个下行数据流;确定用于指示所述第一码本和所述一个或多个第二码本的码本指示信息;向所述终端设备发送所述码本指示信息。
- 根据权利要求1所述的方法,其特征在于,所述确定用于指示所述第一码本和所述一个或多个第二码本的码本指示信息,包括:确定所述第一码本所属的第一码本集、所述一个或多个第二码本所属的一个或多个第二码本集、以及所述第一码本集和所述一个或多个第二码本集所属的第一码本簇,其中,每个码本簇包括至少一个码本集,每个所述码本集包括至少一个所述码本,所述码本簇满足相同码本簇中的码字具有的调制符号总数量相同,所述码本集满足相同码本集中任意两个码本对于所有码字的调制符号都为零调制符号的位置相同,或所述码本集满足相同码本集中的码字具有的调制符号总数量相同,并且相同码本集中的码本具有的码字总数量相同;确定所述码本指示信息,所述码本指示信息包括第一码本簇信息、第一码本集信息和第一指示信息,其中,所述第一码本簇信息用于指示所述第一码本簇,所述第一码本集信息用于指示所述第一码本簇中的所述第一码本集,所述第一指示信息用于指示所述第一码本集中的所述第一码本,所述第一指示信息还用于指示所述第一码本簇中的所述一个或多个第二码本集,以及所述一个或多个第二码本集中的所述一个或多个第二码本。
- 根据权利要求2所述的方法,其特征在于,所述第一指示信息包括:第一码本信息、第二码本集信息和第二码本信息,其中,所述第一码本信息用于指示所述第一码本集中的所述第一码本,所述第二码本集信息用于指示 所述第一码本簇中的所述一个或多个第二码本集,所述第二码本信息用于指示所述一个或多个第二码本集中的所述一个或多个第二码本。
- 根据权利要求2所述的方法,其特征在于,所述第一指示信息包括与所述第一码本簇中的每个码本集一一对应的M组比特串信息,每组比特串信息用于指示相应的码本集是否属于所述第一码本集或所述一个或多个第二码本集,在与所述每组比特串信息相应的码本集属于所述第一码本集或所述一个或多个第二码本集时,所述每组比特串信息进一步用于指示相应的码本集中的所述第一码本或所述一个或多个第二码本,其中,M为所述第一码本簇包括的码本集的数量。
- 根据权利要求3或4所述的方法,其特征在于,所述第一指示信息包括所述第一码本和所述一个或多个第二码本的调制阶数信息,其中,每个所述码本集中的每个码本的调制阶数不同。
- 根据权利要求1所述的方法,其特征在于,所述确定用于指示所述第一码本和所述一个或多个第二码本的码本指示信息,包括:确定所述第一码本所属的第一特征序列、所述一个或多个第二码本所属的一个或多个第二特征序列、以及所述第一特征序列和所述一个或多个第二特征序列所属的第一特征矩阵,其中,每个特征矩阵由两个或两个以上的特征序列组成,每个所述特征序列对应一个或多个所述码本,所述特征序列由零元素和1元素组成,所述零元素表示所对应的码本中的所有码字在所述零元素相应位置的调制符号全为零调制符号,所述1元素表示所对应的码本中的所有码字在所述1元素相应位置的调制符号不全为零调制符号或全为非零调制符号;确定所述码本指示信息,所述码本指示信息包括第一特征矩阵信息、第一特征序列信息和第二指示信息,其中,所述第一特征矩阵信息用于指示所述第一特征矩阵,所述第一特征序列信息用于指示所述第一特征矩阵中的所述第一特征序列,所述第二指示信息用于指示所述第一特征序列对应的一个或多个码本中的所述第一码本,所述第二指示信息还用于指示所述第一特征矩阵中的所述一个或多个第二特征序列,以及所述一个或多个第二特征序列对应的一个或多个码本中的所述一个或多个第二码本。
- 根据权利要求6所述的方法,其特征在于,所述第二指示信息包括:第三码本信息、第二特征序列信息和第四码本信息,其中,所述第三码本信 息用于指示所述第一特征序列对应的一个或多个码本中的所述第一码本,所述第二特征序列信息用于指示所述第一特征矩阵中的所述一个或多个第二特征序列,所述第四码本信息用于指示所述一个或多个第二特征序列对应的一个或多个码本中的所述一个或多个第二码本。
- 根据权利要求6所述的方法,其特征在于,所述第二指示信息包括与所述第一特征矩阵中的每个特征序列一一对应的M组比特串信息,每组比特串信息用于指示相应的特征序列是否属于所述第一特征序列或所述一个或多个第二特征序列,在与所述每组比特串信息相应的特征序列属于所述第一特征序列或所述一个或多个第二特征序列时,所述每组比特串信息进一步用于指示相应的特征序列所对应的一个或多个码本中的所述第一码本或所述一个或多个第二码本,其中,M为所述第一特征矩阵包括的特征序列的数量。
- 根据权利要求7或8所述的方法,其特征在于,所述第二指示信息包括所述第一码本和所述一个或多个第二码本的调制阶数信息,其中,每个所述特征序列对应的一个或多个码本中的每个码本的调制阶数不同。
- 根据权利要求1所述的方法,其特征在于,所述确定用于指示所述第一码本和所述一个或多个第二码本的码本指示信息,包括:确定第一模式以及所述终端设备在所述第一数据流和所述第二数据流所属的多个终端设备中的排序,所述第一模式用于指示所述第一码本和所述一个或多个第二码本所属的第三码本集、以及所述第三码本集中的码本在所述多个终端设备中的分配信息;其中,每个码本集包括至少一个所述码本,所述码本集满足相同码本集中的码字具有的调制符号总数量相同,并且相同码本集中的码本具有的码字总数量相同;确定所述码本指示信息,所述码本指示信息包括第一模式信息和第一终端设备排序信息,其中,所述第一模式信息用于指示所述第一模式,所述第一终端设备排序信息用于指示所述终端设备在所述多个终端设备中的排序。
- 根据权利要求1所述的方法,其特征在于,所述确定用于指示所述第一码本和所述一个或多个第二码本的码本指示信息,包括:确定第二模式、所述终端设备在所述第一数据流和所述第二数据流所属的多个终端设备中的排序、以及所述多个终端设备中的每个终端设备使用的码本集,所述第二模式用于指示所述第一码本和所述一个或多个第二码本所 属的第二特征矩阵、以及所述第二特征矩阵中的特征序列在所述多个终端设备中的分配信息;其中,每个特征矩阵对应一个或多个码本集,所述特征矩阵由两个或两个以上的特征序列组成,所述特征序列由零元素和1元素组成,所述零元素表示所对应的码本中的所有码字在所述零元素相应位置的调制符号全为零调制符号,所述1元素表示所对应的码本中的所有码字在所述1元素相应位置的调制符号不全为零调制符号或全为非零调制符号;每个码本集包括至少一个所述码本,所述码本集满足相同码本集中的码字具有的调制符号总数量相同,并且相同码本集中的码本具有的码字总数量相同;其中,所述码本集中的每个码本分别与所述特征矩阵中的每个特征序列相对应;确定所述码本指示信息,所述码本指示信息包括第二模式信息、第二终端设备排序信息以及第三码本集信息,其中,所述第二模式信息用于指示所述第二模式,所述第二终端设备排序信息用于指示所述终端设备在所述多个终端设备中的排序,所述第三码本集信息用于指示所述每个终端设备分别使用的与所述第二特征矩阵对应的码本集。
- 根据权利要求1至11中任一项所述的方法,其特征在于,所述向所述终端设备发送所述码本指示信息,包括:向所述终端设备发送下行调度消息、专用高层控制信令或系统广播消息,所述下行调度消息、所述专用高层控制信令和所述系统广播消息包括所述码本指示信息。
- 根据权利要求12所述的方法,其特征在于,所述专用高层控制信令包括无线资源控制RRC连接建立消息和RRC连接重配置消息。
- 根据权利要求1至13中任一项所述的方法,其特征在于,所述码本指示信息为比特串信息。
- 根据权利要求1至14中任一项所述的方法,其特征在于,所述码本为稀疏码多址接入SCMA码本。
- 根据权利要求15所述的方法,其特征在于,所述码本包括的码字中的零调制符号的数量大于或等于非零调制符号的数量。
- 一种传输指示信息的方法,其特征在于,包括:接收网络设备发送的码本指示信息,所述码本指示信息用于指示所述网络设备发送第一下行数据流使用的第一码本,以及所述网络设备发送第二下行数据流使用的一个或多个第二码本,其中,所述第二下行数据流为所述第 一下行数据流所使用的时频资源上承载的除了所述第一下行数据流之外的一个或多个下行数据流,所述码本由两个或两个以上的码字组成,所述码字为多维复数向量,用于表示数据与至少两个调制符号之间的映射关系,所述至少两个调制符号包括至少一个零调制符号和至少一个非零调制符号;根据所述码本指示信息确定所述第一码本和所述一个或多个第二码本;根据所述第一码本和所述一个或多个第二码本对所述网络设备发送的所述第一下行数据流进行解码。
- 根据权利要求17所述的方法,其特征在于,所述码本指示信息包括第一码本簇信息、第一码本集信息和第一指示信息,其中,所述第一码本簇信息用于指示第一码本簇,所述第一码本集信息用于指示所述第一码本簇中的第一码本集,所述第一指示信息用于指示所述第一码本集中的第一码本,所述第一指示信息还用于指示所述第一码本簇中的一个或多个第二码本集,以及所述一个或多个第二码本集中的所述一个或多个第二码本;其中,所述根据所述码本指示信息确定所述第一码本和所述一个或多个第二码本,包括:根据所述第一码本簇信息、所述第一码本集信息和所述第一指示信息,确定所述第一码本簇包括的所述第一码本集中的所述第一码本,以及所述第一码本簇包括的所述一个或多个第二码本集中的所述一个或多个第二码本,其中,每个码本簇包括至少一个码本集,每个所述码本集包括至少一个所述码本,所述码本簇满足相同码本簇中的码字具有的调制符号总数量相同,所述码本集满足相同码本集中任意两个码本对于所有码字的调制符号都为零调制符号的位置相同,或所述码本集满足相同码本集中的码字具有的调制符号总数量相同,并且相同码本集中的码本具有的码字总数量相同。
- 根据权利要求18所述的方法,其特征在于,所述第一指示信息包括:第一码本信息、第二码本集信息和第二码本信息,其中,所述第一码本信息用于指示所述第一码本集中的所述第一码本,所述第二码本集信息用于指示所述第一码本簇中的所述一个或多个第二码本集,所述第二码本信息用于指示所述一个或多个第二码本集中的所述一个或多个第二码本。
- 根据权利要求18所述的方法,其特征在于,所述第一指示信息包括与所述第一码本簇中的每个码本集一一对应的M组比特串信息,每组比特串信息用于指示相应的码本集是否属于所述第一码本集或所述一个或多 个第二码本集,在与所述每组比特串信息相应的码本集属于所述第一码本集或所述一个或多个第二码本集时,所述每组比特串信息进一步用于指示相应的码本集中的所述第一码本或所述一个或多个第二码本,其中,M为所述第一码本簇包括的码本集的数量。
- 根据权利要求19或20所述的方法,其特征在于,所述第一指示信息包括所述第一码本和所述一个或多个第二码本的调制阶数信息,其中,每个所述码本集中的每个码本的调制阶数不同。
- 根据权利要求17所述的方法,其特征在于,所述码本指示信息包括第一特征矩阵信息、第一特征序列信息和第二指示信息,其中,所述第一特征矩阵信息用于指示第一特征矩阵,所述第一特征序列信息用于指示所述第一特征矩阵中的第一特征序列,所述第二指示信息用于指示所述第一特征序列对应的一个或多个码本中的所述第一码本,所述第二指示信息还用于指示所述第一特征矩阵中的一个或多个第二特征序列,以及所述一个或多个第二特征序列对应的一个或多个码本中的所述一个或多个第二码本;其中,所述根据所述码本指示信息确定所述第一码本和所述一个或多个第二码本,包括:根据所述第一特征矩阵信息、所述第一特征序列信息和所述第二指示信息,确定所述第一特征矩阵包括的所述第一特征序列对应的一个或多个码本中的所述第一码本,以及所述第一特征矩阵包括的所述一个或多个第二特征序列中的所述一个或多个第二码本,其中,每个特征矩阵由两个或两个以上的特征序列组成,每个所述特征序列对应一个或多个所述码本,所述特征序列由零元素和1元素组成,所述零元素表示所对应的码本中的所有码字在所述零元素相应位置的调制符号全为零调制符号,所述1元素表示所对应的码本中的所有码字在所述1元素相应位置的调制符号不全为零调制符号或全为非零调制符号。
- 根据权利要求22所述的方法,其特征在于,所述第二指示信息包括:第三码本信息、第二特征序列信息和第四码本信息,其中,所述第三码本信息用于指示所述第一特征序列对应的一个或多个码本中的所述第一码本,所述第二特征序列信息用于指示所述第一特征矩阵中的所述一个或多个第二特征序列,所述第四码本信息用于指示所述一个或多个第二特征序列对应的一个或多个码本中的所述一个或多个第二码本。
- 根据权利要求22所述的方法,其特征在于,所述第二指示信息包括与所述第一特征矩阵中的每个特征序列一一对应的M组比特串信息,每组比特串信息用于指示相应的特征序列是否属于所述第一特征序列或所述一个或多个第二特征序列,在与所述每组比特串信息相应的特征序列属于所述第一特征序列或所述一个或多个第二特征序列时,所述每组比特串信息进一步用于指示相应的特征序列所对应的一个或多个码本中的所述第一码本或所述一个或多个第二码本,其中,M为所述第一特征矩阵包括的特征序列的数量。
- 根据权利要求23或24所述的方法,其特征在于,所述第二指示信息包括所述第一码本和所述一个或多个第二码本的调制阶数信息,其中,每个所述特征序列对应的一个或多个码本中的每个码本的调制阶数不同。
- 根据权利要求17所述的方法,其特征在于,所述码本指示信息包括第一模式信息和第一终端设备排序信息,其中,所述第一模式信息用于指示第一模式,所述第一模式用于指示所述第一码本和所述一个或多个第二码本所属的第三码本集、以及所述第三码本集中的码本在所述第一数据流和所述第二数据流所属的多个终端设备中的分配信息,所述第一终端设备排序信息用于指示所述终端设备在所述多个终端设备中的排序;其中,所述根据所述码本指示信息确定所述第一码本和所述一个或多个第二码本,包括:根据所述第一模式信息和所述第一终端设备排序信息,在所述第一模式指示的所述第三码本集中,确定与所述第一终端设备排序信息相应的所述第一码本,以及所述一个或多个第二码本,其中,每个码本集包括至少一个所述码本,所述码本集满足相同码本集中的码字具有的调制符号总数量相同,并且相同码本集中的码本具有的码字总数量相同。
- 根据权利要求17所述的方法,其特征在于,所述码本指示信息包括第二模式信息、第二终端设备排序信息以及第三码本集信息,其中,所述第二模式信息用于指示第二模式,所述所述第二模式用于指示所述第一码本和所述一个或多个第二码本所属的第二特征矩阵、以及所述第二特征矩阵中的特征序列在所述第一数据流和所述第二数据流所属的多个终端设备中的分配信息,所述第二终端设备排序信息用于指示所述终端设备在所述多个终端设备中的排序,所述第三码本集信息用于指示所述多个终端设备中的每个 终端设备分别使用的与所述第二特征矩阵对应的码本集;其中,所述根据所述码本指示信息确定所述第一码本和所述一个或多个第二码本,包括:根据所述第二模式信息、所述第二终端设备排序信息以及所述第三码本集信息,在与所述第二模式指示的所述第二特征矩阵对应的一个或多个码本集中,确定与所述第二终端设备排序信息相应的所述第一码本,以及所述一个或多个第二码本,其中,每个特征矩阵对应一个或多个码本集,所述特征矩阵由两个或两个以上的特征序列组成,所述特征序列由零元素和1元素组成,所述零元素表示所对应的码本中的所有码字在所述零元素相应位置的调制符号全为零调制符号,所述1元素表示所对应的码本中的所有码字在所述1元素相应位置的调制符号不全为零调制符号或全为非零调制符号;每个码本集包括至少一个所述码本,所述码本集满足相同码本集中的码字具有的调制符号总数量相同,并且相同码本集中的码本具有的码字总数量相同;其中,所述码本集中的每个码本分别与所述特征矩阵中的每个特征序列相对应。
- 根据权利要求17至27中任一项所述的方法,其特征在于,所述接收网络设备发送的码本指示信息,包括:接收所述网络设备发送的下行调度消息、专用高层控制信令或系统广播消息,所述下行调度消息、所述专用高层控制信令和所述系统广播消息包括所述码本指示信息。
- 根据权利要求28所述的方法,其特征在于,所述专用高层控制信令包括无线资源控制RRC连接建立消息和RRC连接重配置消息。
- 根据权利要求17至29中任一项所述的方法,其特征在于,所述码本指示信息为比特串信息。
- 根据权利要求17至30中任一项所述的方法,其特征在于,所述码本为稀疏码多址接入SCMA码本。
- 根据权利要求31所述的方法,其特征在于,所述码本包括的码字中的零调制符号的数量大于或等于非零调制符号的数量。
- 一种传输指示信息的装置,其特征在于,包括:第一确定模块,用于在一个或多个码本中确定向终端设备发送第一下行数据流使用的第一码本,所述码本由两个或两个以上的码字组成,所述码字为多维复数向量,用于表示数据与至少两个调制符号之间的映射关系,所述 至少两个调制符号包括至少一个零调制符号和至少一个非零调制符号;第二确定模块,用于确定发送第二下行数据流使用的一个或多个第二码本,其中,所述第二下行数据流为所述第一下行数据流所使用的时频资源上承载的除了所述第一下行数据流之外的一个或多个下行数据流;第三确定模块,用于确定用于指示所述第一确定模块确定的所述第一码本和所述第二确定模块确定的所述一个或多个第二码本的码本指示信息;发送模块,用于向所述终端设备发送所述第三确定模块确定的所述码本指示信息。
- 根据权利要求33所述的装置,其特征在于,所述第三确定模块包括:第一确定单元,用于确定所述第一码本所属的第一码本集、所述一个或多个第二码本所属的一个或多个第二码本集、以及所述第一码本集和所述一个或多个第二码本集所属的第一码本簇,其中,每个码本簇包括至少一个码本集,每个所述码本集包括至少一个所述码本,所述码本簇满足相同码本簇中的码字具有的调制符号总数量相同,所述码本集满足相同码本集中任意两个码本对于所有码字的调制符号都为零调制符号的位置相同,或所述码本集满足相同码本集中的码字具有的调制符号总数量相同,并且相同码本集中的码本具有的码字总数量相同;第二确定单元,用于确定所述码本指示信息,所述码本指示信息包括第一码本簇信息、第一码本集信息和第一指示信息,其中,所述第一码本簇信息用于指示所述第一码本簇,所述第一码本集信息用于指示所述第一码本簇中的所述第一码本集,所述第一指示信息用于指示所述第一码本集中的所述第一码本,所述第一指示信息还用于指示所述第一码本簇中的所述一个或多个第二码本集,以及所述一个或多个第二码本集中的所述一个或多个第二码本。
- 根据权利要求34所述的装置,其特征在于,所述第二确定单元确定的所述第一指示信息包括:第一码本信息、第二码本集信息和第二码本信息,其中,所述第一码本信息用于指示所述第一码本集中的所述第一码本,所述第二码本集信息用于指示所述第一码本簇中的所述一个或多个第二码本集,所述第二码本信息用于指示所述一个或多个第二码本集中的所述一个或多个第二码本。
- 根据权利要求34所述的装置,其特征在于,所述第二确定单元确定的所述第一指示信息包括与所述第一码本簇中的每个码本集一一对应的M组比特串信息,每组比特串信息用于指示相应的码本集是否属于所述第一码本集或所述一个或多个第二码本集,在与所述每组比特串信息相应的码本集属于所述第一码本集或所述一个或多个第二码本集时,所述每组比特串信息进一步用于指示相应的码本集中的所述第一码本或所述一个或多个第二码本,其中,M为所述第一码本簇包括的码本集的数量。
- 根据权利要求35或36所述的装置,其特征在于,所述第二确定单元确定的所述第一指示信息包括所述第一码本和所述一个或多个第二码本的调制阶数信息,其中,每个所述码本集中的每个码本的调制阶数不同。
- 根据权利要求33所述的装置,其特征在于,所述第三确定模块包括:第三确定单元,用于确定所述第一码本所属的第一特征序列、所述一个或多个第二码本所属的一个或多个第二特征序列、以及所述第一特征序列和所述一个或多个第二特征序列所属的第一特征矩阵,其中,每个特征矩阵由两个或两个以上的特征序列组成,每个所述特征序列对应一个或多个所述码本,所述特征序列由零元素和1元素组成,所述零元素表示所对应的码本中的所有码字在所述零元素相应位置的调制符号全为零调制符号,所述1元素表示所对应的码本中的所有码字在所述1元素相应位置的调制符号不全为零调制符号或全为非零调制符号;第四确定单元,用于确定所述码本指示信息,所述码本指示信息包括第一特征矩阵信息、第一特征序列信息和第二指示信息,其中,所述第一特征矩阵信息用于指示所述第一特征矩阵,所述第一特征序列信息用于指示所述第一特征矩阵中的所述第一特征序列,所述第二指示信息用于指示所述第一特征序列对应的一个或多个码本中的所述第一码本,所述第二指示信息还用于指示所述第一特征矩阵中的所述一个或多个第二特征序列,以及所述一个或多个第二特征序列对应的一个或多个码本中的所述一个或多个第二码本。
- 根据权利要求38所述的装置,其特征在于,所述第四确定单元确定的所述第二指示信息包括:第三码本信息、第二特征序列信息和第四码本信息,其中,所述第三码本信息用于指示所述第一特征序列对应的一个或多个码本中的所述第一码本,所述第二特征序列信息用于指示所述第一特征矩 阵中的所述一个或多个第二特征序列,所述第四码本信息用于指示所述一个或多个第二特征序列对应的一个或多个码本中的所述一个或多个第二码本。
- 根据权利要求38所述的装置,其特征在于,所述第四确定单元确定的所述第二指示信息包括与所述第一特征矩阵中的每个特征序列一一对应的M组比特串信息,每组比特串信息用于指示相应的特征序列是否属于所述第一特征序列或所述一个或多个第二特征序列,在与所述每组比特串信息相应的特征序列属于所述第一特征序列或所述一个或多个第二特征序列时,所述每组比特串信息进一步用于指示相应的特征序列所对应的一个或多个码本中的所述第一码本或所述一个或多个第二码本,其中,M为所述第一特征矩阵包括的特征序列的数量。
- 根据权利要求39或40所述的装置,其特征在于,所述第四确定单元确定的所述第二指示信息包括所述第一码本和所述一个或多个第二码本的调制阶数信息,其中,每个所述特征序列对应的一个或多个码本中的每个码本的调制阶数不同。
- 根据权利要求33所述的装置,其特征在于,所述第三确定模块包括:第五确定单元,用于确定第一模式以及所述终端设备在所述第一数据流和所述第二数据流所属的多个终端设备中的排序,所述第一模式用于指示所述第一码本和所述一个或多个第二码本所属的第三码本集、以及所述第三码本集中的码本在所述多个终端设备中的分配信息;其中,每个码本集包括至少一个所述码本,所述码本集满足相同码本集中的码字具有的调制符号总数量相同,并且相同码本集中的码本具有的码字总数量相同;第六确定单元,用于确定所述码本指示信息,所述码本指示信息包括第一模式信息和第一终端设备排序信息,其中,所述第一模式信息用于指示所述第一模式,所述第一终端设备排序信息用于指示所述终端设备在所述多个终端设备中的排序。
- 根据权利要求33所述的装置,其特征在于,所述第三确定模块包括:第七确定单元,用于确定第二模式、所述终端设备在所述第一数据流和所述第二数据流所属的多个终端设备中的排序、以及所述多个终端设备中的每个终端设备使用的码本集,所述第二模式用于指示所述第一码本和所述一 个或多个第二码本所属的第二特征矩阵、以及所述第二特征矩阵中的特征序列在所述多个终端设备中的分配信息;其中,每个特征矩阵对应一个或多个码本集,所述特征矩阵由两个或两个以上的特征序列组成,所述特征序列由零元素和1元素组成,所述零元素表示所对应的码本中的所有码字在所述零元素相应位置的调制符号全为零调制符号,所述1元素表示所对应的码本中的所有码字在所述1元素相应位置的调制符号不全为零调制符号或全为非零调制符号;每个码本集包括至少一个所述码本,所述码本集满足相同码本集中的码字具有的调制符号总数量相同,并且相同码本集中的码本具有的码字总数量相同;其中,所述码本集中的每个码本分别与所述特征矩阵中的每个特征序列相对应;第八确定单元,用于确定所述码本指示信息,所述码本指示信息包括第二模式信息、第二终端设备排序信息以及第三码本集信息,其中,所述第二模式信息用于指示所述第二模式,所述第二终端设备排序信息用于指示所述终端设备在所述多个终端设备中的排序,所述第三码本集信息用于指示所述每个终端设备分别使用的与所述第二特征矩阵对应的码本集。
- 根据权利要求33至43中任一项所述的装置,其特征在于,所述发送模块具体用于:向所述终端设备发送下行调度消息、专用高层控制信令或系统广播消息,所述下行调度消息、所述专用高层控制信令和所述系统广播消息包括所述码本指示信息。
- 根据权利要求44所述的装置,其特征在于,所述专用高层控制信令包括无线资源控制RRC连接建立消息和RRC连接重配置消息。
- 根据权利要求33至45中任一项所述的装置,其特征在于,所述第三确定模块确定的所述码本指示信息为比特串信息。
- 根据权利要求33至46中任一项所述的装置,其特征在于,所述码本为稀疏码多址接入SCMA码本。
- 根据权利要求47所述的装置,其特征在于,所述码本包括的码字中的零调制符号的数量大于或等于非零调制符号的数量。
- 根据权利要求33至48中任一项该的装置,其特征在于,所述装置为网络设备。
- 一种传输指示信息的装置,其特征在于,包括:接收模块,用于接收网络设备发送的码本指示信息,所述码本指示信息 用于指示所述网络设备发送第一下行数据流使用的第一码本,以及所述网络设备发送第二下行数据流使用的一个或多个第二码本,其中,所述第二下行数据流为所述第一下行数据流所使用的时频资源上承载的除了所述第一下行数据流之外的一个或多个下行数据流,所述码本由两个或两个以上的码字组成,所述码字为多维复数向量,用于表示数据与至少两个调制符号之间的映射关系,所述至少两个调制符号包括至少一个零调制符号和至少一个非零调制符号;确定模块,用于根据所述接收模块接收的所述码本指示信息确定所述第一码本和所述一个或多个第二码本;解码模块,用于根据所述确定模块确定的所述第一码本和所述一个或多个第二码本对所述网络设备发送的所述第一下行数据流进行解码。
- 根据权利要求50所述的装置,其特征在于,所述接收模块接收的所述码本指示信息包括第一码本簇信息、第一码本集信息和第一指示信息,其中,所述第一码本簇信息用于指示第一码本簇,所述第一码本集信息用于指示所述第一码本簇中的第一码本集,所述第一指示信息用于指示所述第一码本集中的第一码本,所述第一指示信息还用于指示所述第一码本簇中的一个或多个第二码本集,以及所述一个或多个第二码本集中的所述一个或多个第二码本;其中,所述确定模块包括:第一确定单元,用于根据所述第一码本簇信息、所述第一码本集信息和所述第一指示信息,确定所述第一码本簇包括的所述第一码本集中的所述第一码本,以及所述第一码本簇包括的所述一个或多个第二码本集中的所述一个或多个第二码本,其中,每个码本簇包括至少一个码本集,每个所述码本集包括至少一个所述码本,所述码本簇满足相同码本簇中的码字具有的调制符号总数量相同,所述码本集满足相同码本集中任意两个码本对于所有码字的调制符号都为零调制符号的位置相同,或所述码本集满足相同码本集中的码字具有的调制符号总数量相同,并且相同码本集中的码本具有的码字总数量相同。
- 根据权利要求51所述的装置,其特征在于,所述接收模块接收的所述第一指示信息包括:第一码本信息、第二码本集信息和第二码本信息,其中,所述第一码本信息用于指示所述第一码本集中的所述第一码本,所述第二码本集信息用于指示所述第一码本簇中的所述一个或多个第二码本集, 所述第二码本信息用于指示所述一个或多个第二码本集中的所述一个或多个第二码本。
- 根据权利要求51所述的装置,其特征在于,所述接收模块接收的所述第一指示信息包括与所述第一码本簇中的每个码本集一一对应的M组比特串信息,每组比特串信息用于指示相应的码本集是否属于所述第一码本集或所述一个或多个第二码本集,在与所述每组比特串信息相应的码本集属于所述第一码本集或所述一个或多个第二码本集时,所述每组比特串信息进一步用于指示相应的码本集中的所述第一码本或所述一个或多个第二码本,其中,M为所述第一码本簇包括的码本集的数量。
- 根据权利要求52或53所述的装置,其特征在于,所述接收模块接收的所述第一指示信息包括所述第一码本和所述一个或多个第二码本的调制阶数信息,其中,每个所述码本集中的每个码本的调制阶数不同。
- 根据权利要求50所述的装置,其特征在于,所述接收模块接收的所述码本指示信息包括第一特征矩阵信息、第一特征序列信息和第二指示信息,其中,所述第一特征矩阵信息用于指示第一特征矩阵,所述第一特征序列信息用于指示所述第一特征矩阵中的第一特征序列,所述第二指示信息用于指示所述第一特征序列对应的一个或多个码本中的所述第一码本,所述第二指示信息还用于指示所述第一特征矩阵中的一个或多个第二特征序列,以及所述一个或多个第二特征序列对应的一个或多个码本中的所述一个或多个第二码本;其中,所述确定模块包括:第二确定单元,用于根据所述第一特征矩阵信息、所述第一特征序列信息和所述第二指示信息,确定所述第一特征矩阵包括的所述第一特征序列对应的一个或多个码本中的所述第一码本,以及所述第一特征矩阵包括的所述一个或多个第二特征序列中的所述一个或多个第二码本,其中,每个特征矩阵由两个或两个以上的特征序列组成,每个所述特征序列对应一个或多个所述码本,所述特征序列由零元素和1元素组成,所述零元素表示所对应的码本中的所有码字在所述零元素相应位置的调制符号全为零调制符号,所述1元素表示所对应的码本中的所有码字在所述1元素相应位置的调制符号不全为零调制符号或全为非零调制符号。
- 根据权利要求55所述的装置,其特征在于,所述接收模块接收的所述第二指示信息包括:第三码本信息、第二特征序列信息和第四码本信息, 其中,所述第三码本信息用于指示所述第一特征序列对应的一个或多个码本中的所述第一码本,所述第二特征序列信息用于指示所述第一特征矩阵中的所述一个或多个第二特征序列,所述第四码本信息用于指示所述一个或多个第二特征序列对应的一个或多个码本中的所述一个或多个第二码本。
- 根据权利要求55所述的装置,其特征在于,所述接收模块接收的所述第二指示信息包括与所述第一特征矩阵中的每个特征序列一一对应的M组比特串信息,每组比特串信息用于指示相应的特征序列是否属于所述第一特征序列或所述一个或多个第二特征序列,在与所述每组比特串信息相应的特征序列属于所述第一特征序列或所述一个或多个第二特征序列时,所述每组比特串信息进一步用于指示相应的特征序列所对应的一个或多个码本中的所述第一码本或所述一个或多个第二码本,其中,M为所述第一特征矩阵包括的特征序列的数量。
- 根据权利要求56或57所述的装置,其特征在于,所述接收模块接收的所述第二指示信息包括所述第一码本和所述一个或多个第二码本的调制阶数信息,其中,每个所述特征序列对应的一个或多个码本中的每个码本的调制阶数不同。
- 根据权利要求50所述的装置,其特征在于,所述接收模块接收的所述码本指示信息包括第一模式信息和第一终端设备排序信息,其中,所述第一模式信息用于指示第一模式,所述第一模式用于指示所述第一码本和所述一个或多个第二码本所属的第三码本集、以及所述第三码本集中的码本在所述第一数据流和所述第二数据流所属的多个终端设备中的分配信息,所述第一终端设备排序信息用于指示所述终端设备在所述多个终端设备中的排序;其中,所述确定模块包括:第三确定单元,用于根据所述第一模式信息和所述第一终端设备排序信息,在所述第一模式指示的所述第三码本集中,确定与所述第一终端设备排序信息相应的所述第一码本,以及所述一个或多个第二码本,其中,每个码本集包括至少一个所述码本,所述码本集满足相同码本集中的码字具有的调制符号总数量相同,并且相同码本集中的码本具有的码字总数量相同。
- 根据权利要求50所述的装置,其特征在于,所述接收模块接收的所述码本指示信息包括第二模式信息、第二终端设备排序信息以及第三码本 集信息,其中,所述第二模式信息用于指示第二模式,所述所述第二模式用于指示所述第一码本和所述一个或多个第二码本所属的第二特征矩阵、以及所述第二特征矩阵中的特征序列在所述第一数据流和所述第二数据流所属的多个终端设备中的分配信息,所述第二终端设备排序信息用于指示所述终端设备在所述多个终端设备中的排序,所述第三码本集信息用于指示所述多个终端设备中的每个终端设备分别使用的与所述第二特征矩阵对应的码本集;其中,所述确定模块包括:第四确定单元,用于根据所述第二模式信息、所述第二终端设备排序信息以及所述第三码本集信息,在与所述第二模式指示的所述第二特征矩阵对应的一个或多个码本集中,确定与所述第二终端设备排序信息相应的所述第一码本,以及所述一个或多个第二码本,其中,每个特征矩阵对应一个或多个码本集,所述特征矩阵由两个或两个以上的特征序列组成,所述特征序列由零元素和1元素组成,所述零元素表示所对应的码本中的所有码字在所述零元素相应位置的调制符号全为零调制符号,所述1元素表示所对应的码本中的所有码字在所述1元素相应位置的调制符号不全为零调制符号或全为非零调制符号;每个码本集包括至少一个所述码本,所述码本集满足相同码本集中的码字具有的调制符号总数量相同,并且相同码本集中的码本具有的码字总数量相同;其中,所述码本集中的每个码本分别与所述特征矩阵中的每个特征序列相对应。
- 根据权利要求50至60中任一项所述的装置,其特征在于,所述接收模块具体用于:接收所述网络设备发送的下行调度消息、专用高层控制信令或系统广播消息,所述下行调度消息、所述专用高层控制信令和所述系统广播消息包括所述码本指示信息。
- 根据权利要求61所述的装置,其特征在于,所述专用高层控制信令包括无线资源控制RRC连接建立消息和RRC连接重配置消息。
- 根据权利要求50至62中任一项所述的装置,其特征在于,所述接收模块接收的所述码本指示信息为比特串信息。
- 根据权利要求50至63中任一项所述的装置,其特征在于,所述码本为稀疏码多址接入SCMA码本。
- 根据权利要求64所述的装置,其特征在于,所述码本包括的码字中的零调制符号的数量大于或等于非零调制符号的数量。
- 根据权利要求50至65中任一项该的装置,其特征在于,所述装置为终端设备。
- 一种传输指示信息的装置,其特征在于,包括:处理器、存储器、总线系统和发送器,其中,所述处理器、所述存储器和所述发送器通过所述总线系统相连,所述存储器用于存储指令,所述处理器用于执行所述存储器存储的指令,以控制所述发送器发送信号;其中,所述处理器用于:在一个或多个码本中确定向终端设备发送第一下行数据流使用的第一码本,所述码本由两个或两个以上的码字组成,所述码字为多维复数向量,用于表示数据与至少两个调制符号之间的映射关系,所述至少两个调制符号包括至少一个零调制符号和至少一个非零调制符号;确定发送第二下行数据流使用的一个或多个第二码本,其中,所述第二下行数据流为所述第一下行数据流所使用的时频资源上承载的除了所述第一下行数据流之外的一个或多个下行数据流;以及确定用于指示所述第一码本和所述一个或多个第二码本的码本指示信息;其中,所述发送器用于:向所述终端设备发送所述码本指示信息。
- 根据权利要求67所述的装置,其特征在于,所述处理器确定用于指示所述第一码本和所述一个或多个第二码本的码本指示信息,包括:确定所述第一码本所属的第一码本集、所述一个或多个第二码本所属的一个或多个第二码本集、以及所述第一码本集和所述一个或多个第二码本集所属的第一码本簇,其中,每个码本簇包括至少一个码本集,每个所述码本集包括至少一个所述码本,所述码本簇满足相同码本簇中的码字具有的调制符号总数量相同,所述码本集满足相同码本集中任意两个码本对于所有码字的调制符号都为零调制符号的位置相同,或所述码本集满足相同码本集中的码字具有的调制符号总数量相同,并且相同码本集中的码本具有的码字总数量相同;确定所述码本指示信息,所述码本指示信息包括第一码本簇信息、第一码本集信息和第一指示信息,其中,所述第一码本簇信息用于指示所述第一码本簇,所述第一码本集信息用于指示所述第一码本簇中的所述第一码本集,所述第一指示信息用于指示所述第一码本集中的所述第一码本,所述第 一指示信息还用于指示所述第一码本簇中的所述一个或多个第二码本集,以及所述一个或多个第二码本集中的所述一个或多个第二码本。
- 根据权利要求68所述的装置,其特征在于,所述处理器确定的所述第一指示信息包括:第一码本信息、第二码本集信息和第二码本信息,其中,所述第一码本信息用于指示所述第一码本集中的所述第一码本,所述第二码本集信息用于指示所述第一码本簇中的所述一个或多个第二码本集,所述第二码本信息用于指示所述一个或多个第二码本集中的所述一个或多个第二码本。
- 根据权利要求68所述的装置,其特征在于,所述处理器确定的所述第一指示信息包括与所述第一码本簇中的每个码本集一一对应的M组比特串信息,每组比特串信息用于指示相应的码本集是否属于所述第一码本集或所述一个或多个第二码本集,在与所述每组比特串信息相应的码本集属于所述第一码本集或所述一个或多个第二码本集时,所述每组比特串信息进一步用于指示相应的码本集中的所述第一码本或所述一个或多个第二码本,其中,M为所述第一码本簇包括的码本集的数量。
- 根据权利要求69或70所述的装置,其特征在于,所述处理器确定的所述第一指示信息包括所述第一码本和所述一个或多个第二码本的调制阶数信息,其中,每个所述码本集中的每个码本的调制阶数不同。
- 根据权利要求67所述的装置,其特征在于,所述处理器确定用于指示所述第一码本和所述一个或多个第二码本的码本指示信息,包括:确定所述第一码本所属的第一特征序列、所述一个或多个第二码本所属的一个或多个第二特征序列、以及所述第一特征序列和所述一个或多个第二特征序列所属的第一特征矩阵,其中,每个特征矩阵由两个或两个以上的特征序列组成,每个所述特征序列对应一个或多个所述码本,所述特征序列由零元素和1元素组成,所述零元素表示所对应的码本中的所有码字在所述零元素相应位置的调制符号全为零调制符号,所述1元素表示所对应的码本中的所有码字在所述1元素相应位置的调制符号不全为零调制符号或全为非零调制符号;确定所述码本指示信息,所述码本指示信息包括第一特征矩阵信息、第一特征序列信息和第二指示信息,其中,所述第一特征矩阵信息用于指示所述第一特征矩阵,所述第一特征序列信息用于指示所述第一特征矩阵中的所 述第一特征序列,所述第二指示信息用于指示所述第一特征序列对应的一个或多个码本中的所述第一码本,所述第二指示信息还用于指示所述第一特征矩阵中的所述一个或多个第二特征序列,以及所述一个或多个第二特征序列对应的一个或多个码本中的所述一个或多个第二码本。
- 根据权利要求72所述的装置,其特征在于,所述处理器确定的所述第二指示信息包括:第三码本信息、第二特征序列信息和第四码本信息,其中,所述第三码本信息用于指示所述第一特征序列对应的一个或多个码本中的所述第一码本,所述第二特征序列信息用于指示所述第一特征矩阵中的所述一个或多个第二特征序列,所述第四码本信息用于指示所述一个或多个第二特征序列对应的一个或多个码本中的所述一个或多个第二码本。
- 根据权利要求72所述的装置,其特征在于,所述处理器确定的所述第二指示信息包括与所述第一特征矩阵中的每个特征序列一一对应的M组比特串信息,每组比特串信息用于指示相应的特征序列是否属于所述第一特征序列或所述一个或多个第二特征序列,在与所述每组比特串信息相应的特征序列属于所述第一特征序列或所述一个或多个第二特征序列时,所述每组比特串信息进一步用于指示相应的特征序列所对应的一个或多个码本中的所述第一码本或所述一个或多个第二码本,其中,M为所述第一特征矩阵包括的特征序列的数量。
- 根据权利要求73或74所述的装置,其特征在于,所述处理器确定的所述第二指示信息包括所述第一码本和所述一个或多个第二码本的调制阶数信息,其中,每个所述特征序列对应的一个或多个码本中的每个码本的调制阶数不同。
- 根据权利要求67所述的装置,其特征在于,所述处理器确定用于指示所述第一码本和所述一个或多个第二码本的码本指示信息,包括:确定第一模式以及所述终端设备在所述第一数据流和所述第二数据流所属的多个终端设备中的排序,所述第一模式用于指示所述第一码本和所述一个或多个第二码本所属的第三码本集、以及所述第三码本集中的码本在所述多个终端设备中的分配信息;其中,每个码本集包括至少一个所述码本,所述码本集满足相同码本集中的码字具有的调制符号总数量相同,并且相同码本集中的码本具有的码字总数量相同;确定所述码本指示信息,所述码本指示信息包括第一模式信息和第一终 端设备排序信息,其中,所述第一模式信息用于指示所述第一模式,所述第一终端设备排序信息用于指示所述终端设备在所述多个终端设备中的排序。
- 根据权利要求67所述的装置,其特征在于,所述处理器确定用于指示所述第一码本和所述一个或多个第二码本的码本指示信息,包括:确定第二模式、所述终端设备在所述第一数据流和所述第二数据流所属的多个终端设备中的排序、以及所述多个终端设备中的每个终端设备使用的码本集,所述第二模式用于指示所述第一码本和所述一个或多个第二码本所属的第二特征矩阵、以及所述第二特征矩阵中的特征序列在所述多个终端设备中的分配信息;其中,每个特征矩阵对应一个或多个码本集,所述特征矩阵由两个或两个以上的特征序列组成,所述特征序列由零元素和1元素组成,所述零元素表示所对应的码本中的所有码字在所述零元素相应位置的调制符号全为零调制符号,所述1元素表示所对应的码本中的所有码字在所述1元素相应位置的调制符号不全为零调制符号或全为非零调制符号;每个码本集包括至少一个所述码本,所述码本集满足相同码本集中的码字具有的调制符号总数量相同,并且相同码本集中的码本具有的码字总数量相同;其中,所述码本集中的每个码本分别与所述特征矩阵中的每个特征序列相对应;确定所述码本指示信息,所述码本指示信息包括第二模式信息、第二终端设备排序信息以及第三码本集信息,其中,所述第二模式信息用于指示所述第二模式,所述第二终端设备排序信息用于指示所述终端设备在所述多个终端设备中的排序,所述第三码本集信息用于指示所述每个终端设备分别使用的与所述第二特征矩阵对应的码本集。
- 根据权利要求67至77中任一项所述的装置,其特征在于,所述发送器向所述终端设备发送所述码本指示信息,包括:向所述终端设备发送下行调度消息、专用高层控制信令或系统广播消息,所述下行调度消息、所述专用高层控制信令和所述系统广播消息包括所述码本指示信息。
- 根据权利要求78所述的装置,其特征在于,所述专用高层控制信令包括无线资源控制RRC连接建立消息和RRC连接重配置消息。
- 根据权利要求67至79中任一项所述的装置,其特征在于,所述处理器确定的所述码本指示信息为比特串信息。
- 根据权利要求67至80中任一项所述的装置,其特征在于,所述码 本为稀疏码多址接入SCMA码本。
- 根据权利要求81所述的装置,其特征在于,所述码本包括的码字中的零调制符号的数量大于或等于非零调制符号的数量。
- 根据权利要求67至82中任一项所述的装置,其特征在于,所述装置为网络设备。
- 一种传输指示信息的装置,其特征在于,包括:处理器、存储器、总线系统和接收器,其中,所述处理器、所述存储器和所述接收器通过所述总线系统相连,所述存储器用于存储指令,所述处理器用于执行所述存储器存储的指令,以控制所述接收器接收信号;其中,所述接收器用于:接收网络设备发送的码本指示信息,所述码本指示信息用于指示所述网络设备发送第一下行数据流使用的第一码本,以及所述网络设备发送第二下行数据流使用的一个或多个第二码本,其中,所述第二下行数据流为所述第一下行数据流所使用的时频资源上承载的除了所述第一下行数据流之外的一个或多个下行数据流,所述码本由两个或两个以上的码字组成,所述码字为多维复数向量,用于表示数据与至少两个调制符号之间的映射关系,所述至少两个调制符号包括至少一个零调制符号和至少一个非零调制符号;其中,所述处理器用于:根据所述码本指示信息确定所述第一码本和所述一个或多个第二码本;以及根据所述第一码本和所述一个或多个第二码本对所述网络设备发送的所述第一下行数据流进行解码。
- 根据权利要求84所述的装置,其特征在于,所述接收器接收的所述码本指示信息包括第一码本簇信息、第一码本集信息和第一指示信息,其中,所述第一码本簇信息用于指示第一码本簇,所述第一码本集信息用于指示所述第一码本簇中的第一码本集,所述第一指示信息用于指示所述第一码本集中的第一码本,所述第一指示信息还用于指示所述第一码本簇中的一个或多个第二码本集,以及所述一个或多个第二码本集中的所述一个或多个第二码本;其中,所述处理器根据所述码本指示信息确定所述第一码本和所述一个或多个第二码本,包括:根据所述第一码本簇信息、所述第一码本集信息和所述第一指示信息,确定所述第一码本簇包括的所述第一码本集中的所述第一码本,以及所述第 一码本簇包括的所述一个或多个第二码本集中的所述一个或多个第二码本,其中,每个码本簇包括至少一个码本集,每个所述码本集包括至少一个所述码本,所述码本簇满足相同码本簇中的码字具有的调制符号总数量相同,所述码本集满足相同码本集中任意两个码本对于所有码字的调制符号都为零调制符号的位置相同,或所述码本集满足相同码本集中的码字具有的调制符号总数量相同,并且相同码本集中的码本具有的码字总数量相同。
- 根据权利要求85所述的装置,其特征在于,所述接收器接收的所述第一指示信息包括:第一码本信息、第二码本集信息和第二码本信息,其中,所述第一码本信息用于指示所述第一码本集中的所述第一码本,所述第二码本集信息用于指示所述第一码本簇中的所述一个或多个第二码本集,所述第二码本信息用于指示所述一个或多个第二码本集中的所述一个或多个第二码本。
- 根据权利要求85所述的装置,其特征在于,所述接收器接收的所述第一指示信息包括与所述第一码本簇中的每个码本集一一对应的M组比特串信息,每组比特串信息用于指示相应的码本集是否属于所述第一码本集或所述一个或多个第二码本集,在与所述每组比特串信息相应的码本集属于所述第一码本集或所述一个或多个第二码本集时,所述每组比特串信息进一步用于指示相应的码本集中的所述第一码本或所述一个或多个第二码本,其中,M为所述第一码本簇包括的码本集的数量。
- 根据权利要求86或87所述的装置,其特征在于,所述接收器接收的所述第一指示信息包括所述第一码本和所述一个或多个第二码本的调制阶数信息,其中,每个所述码本集中的每个码本的调制阶数不同。
- 根据权利要求84所述的装置,其特征在于,所述接收器接收的所述码本指示信息包括第一特征矩阵信息、第一特征序列信息和第二指示信息,其中,所述第一特征矩阵信息用于指示第一特征矩阵,所述第一特征序列信息用于指示所述第一特征矩阵中的第一特征序列,所述第二指示信息用于指示所述第一特征序列对应的一个或多个码本中的所述第一码本,所述第二指示信息还用于指示所述第一特征矩阵中的一个或多个第二特征序列,以及所述一个或多个第二特征序列对应的一个或多个码本中的所述一个或多个第二码本;其中,所述处理器根据所述码本指示信息确定所述第一码本和所述一个 或多个第二码本,包括:根据所述第一特征矩阵信息、所述第一特征序列信息和所述第二指示信息,确定所述第一特征矩阵包括的所述第一特征序列对应的一个或多个码本中的所述第一码本,以及所述第一特征矩阵包括的所述一个或多个第二特征序列中的所述一个或多个第二码本,其中,每个特征矩阵由两个或两个以上的特征序列组成,每个所述特征序列对应一个或多个所述码本,所述特征序列由零元素和1元素组成,所述零元素表示所对应的码本中的所有码字在所述零元素相应位置的调制符号全为零调制符号,所述1元素表示所对应的码本中的所有码字在所述1元素相应位置的调制符号不全为零调制符号或全为非零调制符号。
- 根据权利要求89所述的装置,其特征在于,所述接收器接收的所述第二指示信息包括:第三码本信息、第二特征序列信息和第四码本信息,其中,所述第三码本信息用于指示所述第一特征序列对应的一个或多个码本中的所述第一码本,所述第二特征序列信息用于指示所述第一特征矩阵中的所述一个或多个第二特征序列,所述第四码本信息用于指示所述一个或多个第二特征序列对应的一个或多个码本中的所述一个或多个第二码本。
- 根据权利要求89所述的装置,其特征在于,所述接收器接收的所述第二指示信息包括与所述第一特征矩阵中的每个特征序列一一对应的M组比特串信息,每组比特串信息用于指示相应的特征序列是否属于所述第一特征序列或所述一个或多个第二特征序列,在与所述每组比特串信息相应的特征序列属于所述第一特征序列或所述一个或多个第二特征序列时,所述每组比特串信息进一步用于指示相应的特征序列所对应的一个或多个码本中的所述第一码本或所述一个或多个第二码本,其中,M为所述第一特征矩阵包括的特征序列的数量。
- 根据权利要求90或91所述的装置,其特征在于,所述接收器接收的所述第二指示信息包括所述第一码本和所述一个或多个第二码本的调制阶数信息,其中,每个所述特征序列对应的一个或多个码本中的每个码本的调制阶数不同。
- 根据权利要求84所述的装置,其特征在于,所述接收器接收的所述码本指示信息包括第一模式信息和第一终端设备排序信息,其中,所述第一模式信息用于指示第一模式,所述第一模式用于指示所述第一码本和所述 一个或多个第二码本所属的第三码本集、以及所述第三码本集中的码本在所述第一数据流和所述第二数据流所属的多个终端设备中的分配信息,所述第一终端设备排序信息用于指示所述终端设备在所述多个终端设备中的排序;其中,所述处理器根据所述码本指示信息确定所述第一码本和所述一个或多个第二码本,包括:根据所述第一模式信息和所述第一终端设备排序信息,在所述第一模式指示的所述第三码本集中,确定与所述第一终端设备排序信息相应的所述第一码本,以及所述一个或多个第二码本,其中,每个码本集包括至少一个所述码本,所述码本集满足相同码本集中的码字具有的调制符号总数量相同,并且相同码本集中的码本具有的码字总数量相同。
- 根据权利要求84所述的装置,其特征在于,所述接收器接收的所述码本指示信息包括第二模式信息、第二终端设备排序信息以及第三码本集信息,其中,所述第二模式信息用于指示第二模式,所述所述第二模式用于指示所述第一码本和所述一个或多个第二码本所属的第二特征矩阵、以及所述第二特征矩阵中的特征序列在所述第一数据流和所述第二数据流所属的多个终端设备中的分配信息,所述第二终端设备排序信息用于指示所述终端设备在所述多个终端设备中的排序,所述第三码本集信息用于指示所述多个终端设备中的每个终端设备分别使用的与所述第二特征矩阵对应的码本集;其中,所述处理器根据所述码本指示信息确定所述第一码本和所述一个或多个第二码本,包括:根据所述第二模式信息、所述第二终端设备排序信息以及所述第三码本集信息,在与所述第二模式指示的所述第二特征矩阵对应的一个或多个码本集中,确定与所述第二终端设备排序信息相应的所述第一码本,以及所述一个或多个第二码本,其中,每个特征矩阵对应一个或多个码本集,所述特征矩阵由两个或两个以上的特征序列组成,所述特征序列由零元素和1元素组成,所述零元素表示所对应的码本中的所有码字在所述零元素相应位置的调制符号全为零调制符号,所述1元素表示所对应的码本中的所有码字在所述1元素相应位置的调制符号不全为零调制符号或全为非零调制符号;每个码本集包括至少一个所述码本,所述码本集满足相同码本集中的码字具有的调制符号总数量相同,并且相同码本集中的码本具有的码字总数量相同;其中,所述码本集中的每个码本分别与所述特征矩阵中的每个特征序列相对应。
- 根据权利要求84至94中任一项所述的装置,其特征在于,所述接收器接收网络设备发送的码本指示信息,包括:接收所述网络设备发送的下行调度消息、专用高层控制信令或系统广播消息,所述下行调度消息、所述专用高层控制信令和所述系统广播消息包括所述码本指示信息。
- 根据权利要求95所述的装置,其特征在于,所述专用高层控制信令包括无线资源控制RRC连接建立消息和RRC连接重配置消息。
- 根据权利要求84至96中任一项所述的装置,其特征在于,所述接收器接收的所述码本指示信息为比特串信息。
- 根据权利要求84至97中任一项所述的装置,其特征在于,所述码本为稀疏码多址接入SCMA码本。
- 根据权利要求98所述的装置,其特征在于,所述码本包括的码字中的零调制符号的数量大于或等于非零调制符号的数量。
- 根据权利要求84至99中任一项所述的装置,其特征在于,所述装置为终端设备。
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KR1020177020500A KR20170108007A (ko) | 2014-12-22 | 2015-04-24 | 지시 정보 전송 방법 및 장치 |
JP2017533818A JP6517347B2 (ja) | 2014-12-22 | 2015-04-24 | 指示情報伝送方法および装置 |
EP15871536.7A EP3226637B1 (en) | 2014-12-22 | 2015-04-24 | Method and device for transmitting indication information |
BR112017013447-0A BR112017013447A2 (zh) | 2014-12-22 | 2015-04-24 | Transmission method and apparatus for indicating information |
RU2017126033A RU2668112C1 (ru) | 2014-12-22 | 2015-04-24 | Устройство и способ передачи информации указания |
CN201580070192.6A CN107113849B (zh) | 2014-12-22 | 2015-04-24 | 传输指示信息的方法和装置 |
US15/630,706 US10470188B2 (en) | 2014-12-22 | 2017-06-22 | Transmission of one or more codebooks between network and terminal devices |
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CN108242972B (zh) * | 2016-12-26 | 2020-12-15 | 华为技术有限公司 | 非正交传输数据的方法和设备 |
US10735143B2 (en) * | 2017-11-07 | 2020-08-04 | Huawei Technologies Co., Ltd. | System and method for bit mapping in multiple access |
CN114245464A (zh) * | 2018-12-26 | 2022-03-25 | 北京小米移动软件有限公司 | 时域资源分配方法、数据发送方法、基站及终端 |
CN111953448B (zh) * | 2019-05-17 | 2024-04-30 | 株式会社Ntt都科摩 | 无线通信系统中的终端和基站 |
CN114585102A (zh) * | 2020-11-30 | 2022-06-03 | 华为技术有限公司 | 传输数据的方法以及装置 |
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JP2018506206A (ja) | 2018-03-01 |
JP6517347B2 (ja) | 2019-05-22 |
US10470188B2 (en) | 2019-11-05 |
KR20170108007A (ko) | 2017-09-26 |
EP3226637B1 (en) | 2019-06-12 |
US20170353959A1 (en) | 2017-12-07 |
CN107113849B (zh) | 2019-07-23 |
EP3226637A1 (en) | 2017-10-04 |
EP3226637A4 (en) | 2017-12-20 |
WO2016101460A8 (zh) | 2016-09-15 |
BR112017013447A2 (zh) | 2018-04-10 |
CN107113849A (zh) | 2017-08-29 |
RU2668112C1 (ru) | 2018-09-26 |
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