WO2020199954A1 - 信息映射方法、信息获取方法、终端设备及网络设备 - Google Patents
信息映射方法、信息获取方法、终端设备及网络设备 Download PDFInfo
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Definitions
- This application relates to the field of wireless communication technologies, such as an information mapping method, an information acquisition method, terminal equipment, network equipment, communication system, and storage medium.
- the precoding technology of the multi-antenna technology improves the performance of communication by applying precoding to the transmitting antenna.
- the transmitting side transmits a reference signal (RS, Reference Signal) on a resource (Resource), and the receiving side uses the reference signal to measure channel state information (CSI, Channel State Information), and then feeds back the measured channel in the form of precoding State information
- precoding is usually fed back in the form of precoding matrix indicator (PMI, Precoding Matrix Indicator) information.
- PMI Precoding Matrix Indicator
- This application provides an information mapping method, information acquisition method, terminal equipment, network equipment, communication system, and storage medium.
- the embodiment of the present application provides an information mapping method, including:
- the one or more fields are divided into a first partial field and a second partial field; wherein the first partial field is used to carry at least one of the following information fields of channel state information: a field indicating the rank of the precoding, indicating the first The wideband channel quality indicator field of a transmission block, the subband differential channel quality indicator field of the first transmission block, and the field indicating the number of elements to be fed back in the first matrix; the second part of the field is used for At least one of the following information fields carrying channel state information: a field indicating the information of the second matrix, a field indicating the position of the strongest coefficient in the first matrix, a field indicating the reference amplitude of the second polarization direction, and a field indicating the The domain of the elements being fed back; wherein the domain indicating the elements being fed back in the first matrix includes: a domain indicating the magnitude of the elements being fed back in the first matrix, indicating the elements being fed back in the first matrix Phase domain; wherein the element in the second matrix is used to indicate the position of the element
- the first bit sequence is generated according to the first partial field
- the second bit sequence is generated according to the second partial field.
- the embodiment of the present application provides an information acquisition method, including:
- the first partial field is used to carry at least one of the following information fields of channel state information: a field indicating the rank of precoding, a field indicating a wideband channel quality indicator of the first transport block, and a field indicating the information of the first transport block.
- the field of subband differential channel quality indication the field indicating the number of elements to be fed back in the first matrix;
- the second partial field is used to carry at least one of the following information fields of channel state information: a field indicating information of the second matrix, a field indicating the position of the strongest coefficient in the first matrix, and a field indicating the reference amplitude of the second polarization direction Domain, indicating the domain of the element being fed back in the first matrix; wherein the domain indicating the element being fed back in the first matrix includes: a domain indicating the magnitude of the element being fed back in the first matrix, indicating the first matrix The domain of the phase of the element being fed back in the matrix;
- the element in the second matrix is used to indicate the position of the element to be fed back in the first matrix.
- An embodiment of the present application provides a terminal device, including:
- the mapping unit is used to map one or more information fields of channel state information to one or more fields of uplink control information
- a processing unit configured to divide the one or more fields into a first partial field and a second partial field; generate a first bit sequence according to the first partial field, and generate a second bit sequence according to the second partial field;
- the first partial field is used to carry at least one of the following information fields of channel state information: a field indicating the rank of precoding, a field indicating a wideband channel quality indicator of the first transport block, and a field indicating the information of the first transport block.
- the field of subband differential channel quality indication the field indicating the number of elements to be fed back in the first matrix;
- the second partial field is used to carry at least one of the following information fields of channel state information: a field indicating information of the second matrix, a field indicating the position of the strongest coefficient in the first matrix, and a field indicating the reference amplitude of the second polarization direction Domain, indicating the domain of the element being fed back in the first matrix; wherein the domain indicating the element being fed back in the first matrix includes: a domain indicating the magnitude of the element being fed back in the first matrix, indicating the first matrix The domain of the phase of the element being fed back in the matrix;
- the element in the second matrix is used to indicate the position of the element to be fed back in the first matrix.
- An embodiment of the present application provides a network device, including:
- An information extraction unit configured to obtain the first bit sequence and the second bit sequence from the uplink control information; obtain the first partial field from the first bit sequence, and obtain the second partial field from the second bit sequence;
- An information processing unit configured to obtain one or more information fields constituting the channel state information based on the first partial field and the second partial field;
- the first partial field is used to carry at least one of the following information fields of channel state information: a field indicating the rank of precoding, a field indicating a wideband channel quality indicator of the first transport block, and a field indicating the information of the first transport block.
- the field of subband differential channel quality indication the field indicating the number of elements to be fed back in the first matrix;
- the second partial field is used to carry at least one of the following information fields of channel state information: a field indicating information of the second matrix, a field indicating the position of the strongest coefficient in the first matrix, and a field indicating the reference amplitude of the second polarization direction Domain, indicating the domain of the element being fed back in the first matrix; wherein the domain indicating the element being fed back in the first matrix includes: a domain indicating the magnitude of the element being fed back in the first matrix, indicating the first matrix The domain of the phase of the element being fed back in the matrix;
- the element in the second matrix is used to indicate the position of the element to be fed back in the first matrix.
- the embodiment of the present application provides a terminal device, which includes a processor and a memory for storing a computer program that can run on the processor, where the memory is used for storing the computer program, and the processor is used for calling and running the computer program.
- the computer program stored in the memory executes the foregoing steps.
- An embodiment of the present application provides a network device, including: a processor and a memory for storing a computer program that can run on the processor, where the memory is used for storing the computer program, and the processor is used for calling and running all the computer programs.
- the computer program stored in the memory executes the foregoing steps.
- the embodiment of the present application provides a communication system, including: the aforementioned terminal device and the aforementioned network device.
- An embodiment of the present application provides a storage medium that stores a computer program, and when the computer program is executed by a processor, any one of the methods in the embodiments of the present application is implemented.
- one or more information fields of channel state information can be mapped to uplink control information, specifically to the first partial field and the second partial field in the uplink control information, and the first partial field And the second part of the fields respectively constitute the first bit sequence and the second bit sequence; in this way, the channel state information can be mapped to the uplink control information.
- FIG. 1 is a schematic flowchart of an information mapping method proposed by an embodiment of this application
- FIG. 3 is a schematic flowchart of an information acquisition method proposed by an embodiment of this application.
- FIG. 5 is a schematic diagram of the composition structure of a terminal device proposed by an embodiment of this application.
- FIG. 6 is a schematic diagram of the structure of a terminal device provided by another embodiment of the application.
- FIG. 7 is a schematic diagram of a hardware composition structure of a terminal device provided by an embodiment of the application.
- FIG. 8 is a schematic diagram of the composition structure of a network device provided by an embodiment of the application.
- FIG. 9 is a schematic diagram of the composition structure of a network device provided by another embodiment of this application.
- FIG. 10 is a schematic diagram of the hardware structure of a network device provided by an embodiment of the application.
- FIG. 11 is a schematic diagram of a hardware composition structure of a terminal device provided by another embodiment of this application.
- FIG. 12 is a schematic diagram of a hardware composition structure of a network device provided by another embodiment of this application.
- FIG. 13 is a schematic diagram of the composition structure of a communication system provided by an embodiment of this application.
- FIG. 14 is a schematic diagram of the composition structure of a communication system provided by another embodiment of this application.
- an information mapping method is provided, as shown in FIG. 1, including:
- Step 101 Map one or more information fields of channel state information to one or more fields of uplink control information.
- Step 102 Divide the one or more fields into a first partial field and a second partial field; wherein the first partial field is used to carry at least one of the following information fields of channel state information: a field indicating the rank of the precoding , The field indicating the wideband channel quality indicator of the first transmission block, the field indicating the subband differential channel quality indicator of the first transmission block, and the field indicating the number of elements to be fed back in the first matrix; the second Some fields are used to carry at least one of the following information fields of channel state information: a field indicating the information of the second matrix, a field indicating the position of the strongest coefficient in the first matrix, a field indicating the reference amplitude of the second polarization direction, and a field indicating the first matrix
- the domain of the elements being fed back in a matrix; wherein the domain indicating the elements being fed back in the first matrix includes: a domain indicating the magnitude of the elements being fed back in the first matrix, indicating the domain of the elements being fed back in the first matrix
- Step 103 Generate a first bit sequence according to the first partial field, and generate a second bit sequence according to the second partial field.
- This embodiment can be applied to the terminal device side. After completing the foregoing processing, it may further include: sending uplink control information to a network device; wherein, the network device may be a device on the network side, for example, it may be a base station on the network side.
- this embodiment may include the following processing procedures:
- Step 201 Map one or more information fields of channel state information to one or more fields of uplink control information; divide the one or more fields into a first partial field and a second partial field; according to the first partial field Generate the first bit sequence, and generate the second bit sequence according to the second part of the field.
- Step 202 Send the uplink control information to the network device.
- the uplink control information finally sent to the network device in step 202 is the uplink control information including the first bit sequence and the second bit sequence, that is, the uplink control information of one or more information domains mapped with channel state information.
- the following first describes the configuration of the precoding involved in this embodiment. Taking a network device as a base station, and taking a layer of precoding in multi-layer precoding as an example, the specific configuration can be as follows: W VCU .
- W represents a single-layer precoding, which is a matrix of N Tx rows and N 3 columns, where N Tx represents the number of antenna ports, and N 3 represents the number of PMI frequency domain units. That is, the rows of W correspond to the antenna ports, and the columns are The frequency domain unit corresponds.
- Is a matrix composed of M row vectors u m , where T represents the transposition of the matrix, m 0,1,...,M-1; M is a positive integer; the vector u m is called a frequency domain vector .
- the first matrix in this embodiment can be represented by C, which is specifically as follows:
- It is a matrix with 2L rows and M columns, the elements of which are the coefficients of the column vectors in the V matrix and the row vectors in the U matrix.
- the second matrix in the foregoing embodiment may be C map .
- the terminal device feeds back the L vectors v l constituting the V matrix to the base station, and feeds back the M vectors u m constituting the U matrix, and uses a 2L row and M column bit matrix C map to indicate in the form of bitmap The position of the element to be fed back in the C matrix, and the corresponding coefficient indicated in the feedback C matrix; wherein the matrix C map (ie the second matrix) corresponds to the elements at the same position in the matrix C (ie the first matrix) one to one.
- the coefficients in the C matrix indicated by the bitmap for feedback are 0 by default. It should be pointed out here that the element being fed back can refer to the coefficient being fed back in the first matrix C.
- the vector v l is selected from a predefined codebook
- the u m vector is selected from a predefined codebook.
- the number of elements in the u m vector is called the number of frequency domain units N 3 of the PMI, and is equal to The number of basis vectors in the predefined codebook space where the vector is located, so N 3 also represents The number of basis vectors in the predefined codebook space where the vector is located.
- the base station transmits to the terminal the parameters (L, M, K 0 ) of the control feedback report; wherein the terminal feeds back the L vectors v l constituting the V matrix to the base station , The M vectors u m forming the U matrix are fed back, and the terminal feeds back at most K 0 coefficients in the C matrix to the base station.
- the precoding fed back by the terminal is used for layer 1 transmission in the spatial domain, and the rank of precoding is called 1; for layer 2 transmission, the rank of precoding is called 2; the same is used for RI layer transmission, called precoding.
- the terminal feeds back the precoding rank and precoding.
- the base station transmits to the terminal the reported control parameters (L, M, K 0 ) corresponding to each possible rank and each layer of the corresponding rank PMI.
- the channel state information is composed of multiple parts of information, and each part of information is called an information field, and a field indicating a certain part of information has the same meaning as a certain part of information.
- the field is the bit or a sequence of bits that carry information, that is, the information is represented by a bit sequence.
- the first matrix is the coefficient in matrix C, that is, the element in matrix C.
- the second polarization direction reference amplitude is the reference amplitude of the coefficients belonging to the second polarization direction in the matrix C.
- the reference amplitude of the first polarization direction is the reference amplitude of the coefficients belonging to the first polarization direction in the matrix C, and the default is 1.
- the field indicating the coefficient amplitude in the matrix C where the coefficient amplitude refers to the differential amplitude of the coefficient for the second polarization direction, and also refers to the differential amplitude of the coefficient for the first polarization direction.
- mapping one or more information fields of channel state information to one or more fields of uplink control information may include:
- the field indicating the information of the second matrix in the channel state information is mapped to the first field of the uplink control information; wherein, the first field contains a one-dimensional sequence, and the one-dimensional sequence consists of the second matrix of the second matrix. The elements of the dimensional matrix are mapped.
- the first field and the second field in this embodiment do not represent the order of the fields, and are only used to distinguish different fields.
- the specific arrangement order is irrelevant.
- the first field can be arranged before the second field.
- the first field can also be arranged after the second field; of course, this embodiment can also include more fields, for example, the third field, the fourth field, the fifth field and more, which do not represent each field.
- the arrangement order of is only used to distinguish each field.
- each field when each field is specifically arranged, it can be the first field-the second field-the fourth field-the sixth field-the third field-the fifth field.
- the expression method thereof shall not prevail, but shall prevail according to the subsequent rules or description, and the description will not be repeated below.
- the way to perform the mapping may be to add the elements of the two-dimensional matrix to the one-dimensional sequence in the order of increasing rows of the second matrix, and finally obtain the mapped one-dimensional sequence as the first of the uplink control information. Field.
- the second matrix such as It is a matrix with 2L rows and M columns, a two-dimensional bit matrix, in which the elements indicate the first matrix in a bit-mapped manner Whether the elements in are reported.
- the mapping of the second matrix C from the map matrix to the bit sequence in the field is a mapping from two-dimensional matrix elements to a one-dimensional sequence, that is, the field mapped into the two-dimensional matrix is a one-dimensional sequence.
- a first field sequence of the second bitmap matrix C map the uplink control information is mapped in the second row of the matrix C map matrix, then the matrix C map all of the second element of the second matrix C map i.e. the next row All elements in a row are sequentially mapped to the sequence in the field.
- the elements in are mapped to the sequence in the field in order, that is, the sequence Map to the sequence in the field in order; among them, if m ⁇ n, then i m ⁇ i n .
- the second matrix C map mapping a bit sequence field is increasing order row C map mapping a second matrix
- the sequence in the field is mapped to the sequence in the increasing order of rows, which is the sequence [d 0 ,d 1 ,...
- the elements in ,d 2L-1 ] are mapped to the sequence in the first field in order, which is the sequence [d 0,0 ,d 0,1 ,...,d 0,M-1 ,d 1,0 ,d 1,1 ,...,d 1,M-1 ,...,d 2L-1,0 ,d 2L-1,1 ,...,d 2L-1,M-1 ] are mapped to the sequence in the first field in order .
- the determination of N is related to the number of maximum feedback elements.
- the determination method can adopt the following formula:
- K 0 is the maximum possible number of feedback elements in the first matrix C configured by the base station for the terminal.
- the coefficient in the first matrix C is the element in the first matrix C
- the coefficient means that the element in the first matrix C is the coefficient of the column in the matrix V and the row in the matrix U, that is, the position of the strongest coefficient in the matrix C It is the same as the position of the strongest element in the matrix C.
- the position of the strongest element in C is the index number l * of the row of the strongest element in C and the index number m * of the column, that is (l * , m * ), which can only be located at the first indicated by the second matrix C map
- the positions of the elements of matrix C that is, there are at most K 0 possible positions, use A field sequence of bits is used to map one of K 0 possible positions, so that overhead can be saved to the greatest extent.
- the position indicated in the map field of the second matrix C and The corresponding relationship of the sequence state composed of bits is the first corresponding relationship.
- use The bits indicate the position of the strongest coefficient in the first matrix C.
- the position indicated in the map field of the second matrix C is the same as
- the corresponding relationship of the sequence state composed of bits is the second corresponding relationship. According to the second corresponding relationship, use The bits indicate the position of the strongest coefficient in the first matrix C.
- the first corresponding relationship is that the position indicated in the map field of the second matrix C corresponds to the sequence state in order, for example, the first position in the second matrix C map corresponds to The sequence state 0 composed of bits corresponds to the sequence state 0, and then the indicated incremental position corresponds to the incremental bit sequence state.
- K 1 positions are indicated in the C map field.
- sequence state n refers to the number of sequence composition is n, for example, the lowest bit sequence 001 on the right side is the number 1, 010 is the number 2, 100 is the number 4; for example, the lowest bit sequence 001 on the left is the number 4, 010 The number is 2, 100 is the number 1.
- a sequence of N bits is used to indicate the position.
- the sequence state is 3
- the position in the second matrix corresponds to the sequence state from front to back, it means that the indication is in the second matrix.
- the 4th position is 3
- Corresponding in the order of the positions indicated in the map field of the second matrix C can reduce the complexity of calculating the position of the strongest element in the first matrix C; according to the order of the positions indicated in the map field of the second matrix C
- the relationship corresponding to the order of the sequence state can reduce the complexity of calculating the position of the strongest element in the first matrix C; the relationship between the first position indicated in the map field of the second matrix C and the sequence state 0 can be reduced
- the complexity of calculating the position of the strongest element in the first matrix C is small.
- the second correspondence is that the first position indicated in the map field of the second matrix C and the The sequence state (2 b -1) constituted by bits corresponds to, and then the indicated increasing position corresponds to the decreasing bit sequence state.
- the map field of the second matrix C indicates K 1 positions, where ⁇ 1st position, 2nd position,..., K 1th position ⁇ and ⁇ sequence state 2 b -1, sequence state 2 b -2, ..., the sequence state 2 b -K 1 ⁇ corresponds to each other in sequence;
- the sequence state n refers to the number of sequence composition is n, for example, the lowest bit sequence 001 on the right side is the number 1, 010 is the number 2, 100 is the number 4; for example, the lowest bit sequence 001 on the left is the number 4, 010 The number is 2, 100 is the number 1.
- this correspondence according to the order of the positions indicated in the map field of the second matrix C can reduce the complexity of calculating the position of the strongest element in the first matrix C; according to the position indicated in the map field of the second matrix C
- the corresponding relationship between the order of the positions and the reverse order of the sequence states can reduce the complexity of calculating the position of the strongest element in the first matrix C.
- the corresponding relationship between the first position indicated in the map field of the second matrix C and the end state of the sequence can reduce the complexity of calculating the position of the strongest element in the first matrix C.
- the first bit sequence is generated according to the first partial field
- the second bit sequence is generated according to the second partial field.
- the second bit sequence is mainly composed of the second partial field.
- the second field Arrange the second field that carries the field indicating the position of the strongest coefficient in the first matrix after the first field of the field that carries the information indicating the second matrix; wherein, the second field contains N bits Sequence; N is an integer, and N is related to the maximum number of feedback elements configured by the network device.
- the method for determining the sequence composed of N bits contained in the second field is as described above and will not be repeated here.
- the field carrying the field indicating the map information of the second matrix C is more important, because the field carrying the field indicating the position of the strongest coefficient in the first matrix C needs to depend on the second matrix to obtain the position of the strongest coefficient in the first matrix C C map information, and the top field in the uplink control information bit sequence is more reliable in transmission than the bottom field.
- the domain of the second matrix C For example, after carrying the first field indicating the domain of the map information of the second matrix C, immediately carrying the second field indicating the domain of the strongest coefficient position in the first matrix C; or, the domain of the second matrix C map information After the first field, one or more other fields are followed, and a second field carrying the field indicating the position of the strongest coefficient in the first matrix C is added.
- Generating the second bit sequence according to the second part of the field may also include: combining the third field corresponding to the same coefficient in the first matrix with the field indicating the coefficient amplitude in the first matrix and the third field in the first matrix indicating the The fourth field of the field of the coefficient phase is set to be adjacently arranged.
- y is a coefficient reported by feedback in the first matrix C
- a y is the amplitude of y
- the field carrying A y is G y
- P y is the phase of y
- the field carrying P y is Hy
- a second bit sequence and the field field H y G y phase immediately, for example arranged in a G y H y, or H y G y are arranged
- H y wherein G y phase and immediately, without gaps other fields.
- z is another coefficient reported by feedback in the first matrix C
- Az is the amplitude of z
- the field carrying Az is G z
- P z is the phase of z
- the field carrying P z is H z
- the fields carrying the amplitude and phase of these two coefficients are arranged as G y H y G z H z , or arranged as H y G y H z G z , or arranged as G z H z G y H y , or arranged in a H z G z H y G y ; wherein, G y H y phase and immediately, without gaps other field, G z and H z with immediately, without gaps other fields.
- the close proximity of the amplitude-bearing field and the phase field corresponding to the same coefficient can shorten the time to obtain the same coefficient, and the obtained coefficient can be used without waiting for the acquisition of other coefficients, that is, the waiting time for using the coefficient can be shortened.
- One polarization direction is the polarization direction corresponding to the strongest coefficient in the first matrix, and the second polarization direction is another polarization direction that is different from the first polarization direction.
- the polarization direction of the coefficient in the first matrix C refers to the polarization direction of the column vector in the matrix V corresponding to the coefficient.
- the element corresponding to the antenna port of the polarization direction is not zero, and the other polarization The element corresponding to the antenna port of the direction is zero.
- the row of the first half of the sequence number of the first matrix C belongs to one polarization direction, for example, the row of index number ⁇ 0,1,...,L-1 ⁇ belongs to one polarization direction; the row of the second half of the sequence number belongs to another The polarization direction, for example, the row with index number ⁇ L,L+1,...,2L-1 ⁇ belongs to another polarization direction; the polarization direction of the coefficient in the first matrix C means that the coefficient is in the first matrix C The polarization direction of the row.
- the field arrangement can be described as follows: For example, the polarization direction corresponding to the strongest coefficient in the first matrix C is p A , and the element that is fed back with the polarization direction p A in the first matrix C is The fields corresponding to the magnitude of each coefficient are as follows The fields corresponding to the phase carrying each coefficient are sequentially The other polarization direction is p B , and the element that is fed back in the first matrix C with the polarization direction p B is The fields corresponding to the magnitude of each coefficient are as follows The fields corresponding to the phase carrying each coefficient are sequentially
- An example of the field arrangement is that the amplitude field and the phase field of the same coefficient are next to each other, the field corresponding to the polarization direction corresponding to the strongest coefficient is arranged first, and the field of the other polarization direction is arranged behind:
- Another example is to sort the field corresponding to the amplitude of the strongest polarization direction first, then the field of the phase corresponding to the strongest polarization direction, then the field of the amplitude corresponding to the other polarization direction, and finally the field of the phase corresponding to the other polarization direction.
- Another example of arrangement is to arrange the field of the phase corresponding to the strongest polarization direction first, then the field of the amplitude corresponding to the strongest polarization direction, then the field of the phase corresponding to the other polarization direction, and finally the field of the phase corresponding to the other polarization direction.
- Such a processing method can arrange the field corresponding to the polarization direction corresponding to the strongest coefficient first, and can improve the reliability of transmission of the field corresponding to the polarization direction corresponding to the strongest coefficient, thereby improving the performance of uplink control information bit sequence transmission.
- the second field carrying the field indicating the position of the strongest coefficient in the first matrix is set before the seventh field carrying the field indicating the element fed back in the first matrix.
- the seventh field carrying the field indicating the element being fed back in the first matrix C is immediately after the second field carrying the field indicating the position of the strongest coefficient in the first matrix C;
- the seventh field that carries the field indicating the element being fed back in the first matrix C is after the second field that carries the field indicating the position of the strongest coefficient in the first matrix C, with one or more other fields in between.
- This processing method can arrange the field carrying the field indicating the position of the strongest coefficient in the first matrix C first, which can improve the reliability of transmission of the field carrying the field indicating the position of the strongest coefficient in the first matrix C;
- the correctness of the transmission of the strong coefficient position is also related to whether the receiving side can correctly understand the corresponding relationship between the value of other coefficients and the position of these coefficients. Therefore, the position of the strongest coefficient is more important than the value of other coefficients. Value is more reliable transmission.
- the elements to be fed back in the first matrix C are in the order of the coefficients indicated in the first field carrying the map information of the second matrix C:
- the fields corresponding to the magnitude of each coefficient are as follows
- the fields corresponding to the phase carrying each coefficient are sequentially
- the fields carrying the amplitude of each coefficient and the fields carrying the phase of each coefficient are arranged as
- the fields carrying the above-mentioned information fields are arranged as: ⁇ field carrying the field indicating the bit matrix C map information, carrying the field indicating the position of the strongest coefficient in the first matrix C, carrying the reference amplitude indicating the second polarization direction
- the field of the domain which carries the field indicating the domain of the coefficient amplitude in the first matrix C, and the field indicating the domain of the coefficient phase in the C matrix ⁇ ;
- Another field arrangement can be: ⁇ a field that carries the field indicating the map information of the second matrix C, a field that carries the field indicating the position of the strongest coefficient in the first matrix C, and a field that indicates the reference amplitude of the second polarization direction
- the field indicates the domain of the coefficient phase in the first matrix C, and carries the field indicating the domain of the coefficient amplitude in the first matrix C ⁇ .
- the first part of the fields are sequentially connected to form the first bit sequence, for example ⁇ carrying field indicating the rank of precoding (Rank), carrying the wideband channel quality indicator (Wideband channel) indicating the first transport block (Transport Block, TB)
- the field of the Quality Information (Channel Quality Indicator, CQI) field which carries the field that indicates the subband differential channel quality indicator (Subband Differential CQI) field of the first transport block (TB), and the field that indicates the feedback in the matrix
- CQI Quality Information
- the second part of the fields are sequentially connected into a second bit sequence, for example ⁇ a field that carries the field indicating the map information of the second matrix C, a field that carries the field indicating the position of the strongest coefficient in the first matrix C, and a field indicating the second pole
- the field of the domain of the reference amplitude of the transformation direction carries the field indicating the coefficient amplitude in the matrix C, the field carrying the field indicating the coefficient phase in the matrix C ⁇ , or ⁇ the field carrying the field indicating the bit matrix C map information, Carrying the field indicating the position of the strongest coefficient in matrix C, carrying the field indicating the reference amplitude of the second polarization direction, carrying the field indicating the coefficient phase in matrix C, carrying the field indicating the coefficient amplitude in matrix C Field of the domain ⁇ .
- the generating the second bit sequence according to the second partial field further includes: arranging the fields carrying the precoding information of each layer in the order of the precoding layer.
- the precoding rank is 2, that is, the precoding has a total of 2 layers, that is, ⁇ the first layer precoding, the second layer precoding ⁇ , and the fields of each layer are arranged in the order of the precoding layer as follows: ⁇ bearing the first layer precoding The coding information field, the field carrying the layer 2 precoding information ⁇ .
- the precoding rank is 3, that is, the precoding has a total of 3 layers, that is, ⁇ the first layer precoding, the second layer precoding, the third layer precoding ⁇ , and the fields of each layer are arranged in the order of the precoding layer It is as follows: ⁇ fields carrying precoding information of the first layer, fields carrying precoding information of the second layer, fields carrying precoding information of the third layer ⁇ .
- the precoding rank is 4, that is, the precoding has a total of 4 layers, that is, ⁇ the first layer precoding, the second layer precoding, the third layer precoding, the fourth layer precoding ⁇ , according to the precoding layer
- the order of the fields of each layer is as follows: ⁇ fields that carry layer 1 precoding information, fields that carry layer 2 precoding information, fields that carry layer 3 precoding information, and fields that carry layer 4 precoding information ⁇ .
- the generating the first bit sequence according to the first partial field further includes: arranging a field carrying a field indicating the number of elements to be fed back in the first matrix at the first position of the first partial field.
- the network equipment such as the base station
- the network equipment needs to know the information of the number of elements fed back in the first matrix in order to determine the length of the second bit sequence, so as to correctly receive the second bit sequence and interpret the information therein; Therefore, the field that carries the field indicating the number of elements to be fed back in the first matrix is very important. Putting it at the top of the first part of the field can improve the transmission reliability of this field, thereby improving the transmission reliability of uplink control information. .
- the method further includes: determining, according to the maximum value of the rank configured by the base station for the terminal, the number of fields carrying the field indicating the number of elements to be fed back in the first matrix.
- the maximum value of the rank of the precoding required to be fed back by the base station for the terminal configuration is 1
- the number of fields carrying the fields indicating the number of elements to be fed back in the first matrix is 1
- each field carries a layer of precoding.
- the maximum value of the rank of the precoding required to be fed back by the base station for configuring the terminal is 2, the number of fields carrying the field indicating the number of elements to be fed back in the first matrix is 2, and each field carries a layer of precoding The field indicating the number of elements being fed back in the first matrix.
- the first field carries the field of the first layer precoding to indicate the number of elements fed back in the first matrix; the second field carries the field of the second layer precoding to indicate the number of elements in the first matrix.
- the maximum value of the rank of the precoding required to be fed back by the base station for the terminal configuration is 3, the number of fields carrying the fields indicating the number of elements to be fed back in the first matrix is 3, and each field carries a layer of precoding The field indicating the number of elements being fed back in the first matrix.
- the first field carries the field of the first layer precoding to indicate the number of elements fed back in the first matrix; the second field carries the field of the second layer precoding to indicate the number of elements in the first matrix.
- the field of the number of elements to be fed back; the third field carries the field of the third layer precoding to indicate the number of elements to be fed back in the first matrix.
- the maximum value of the rank of the precoding required to be fed back by the base station for configuring the terminal is 4, the number of fields carrying the field indicating the number of elements to be fed back in the first matrix is 4, and each field carries a layer of precoding The field indicating the number of elements being fed back in the first matrix.
- the first field carries the field of the first layer precoding to indicate the number of elements fed back in the first matrix; the second field carries the field of the second layer precoding to indicate the number of elements in the first matrix.
- the third field carries the field of the third layer precoding to indicate the number of elements to be fed back in the first matrix.
- the fourth field carries a field of the fourth layer precoding to indicate the number of elements to be fed back in the first matrix.
- the number of fields carrying the fields indicating the number of elements to be fed back in the first matrix is determined, and further includes: the number of non-zero values of the number carried by the field is indicated by The rank of the feedback precoding.
- the maximum value of the rank of the precoding required to be fed back by the base station for the terminal configuration is P
- the number of fields carrying the fields indicating the number of elements to be fed back in the first matrix is P
- each field carries a layer of precoding
- a field used to indicate the number of elements to be fed back in the first matrix where the number carried by Q fields is non-zero, then it indicates that the rank of the precoding to be fed back is Q
- P and Q are positive Integer.
- one or more information fields of channel state information can be mapped to uplink control information, specifically to the first part of the field and the second part of the uplink control information, and by The first part of the field and the second part of the field respectively constitute the first bit sequence and the second bit sequence; in this way, the channel state information can be mapped to the uplink control information.
- the above-mentioned embodiment also provides mapping the domain of the position of the strongest element in the first matrix to a sequence of N bits, the complexity of calculating the position of the strongest element in the first matrix is reduced; and by mapping the strongest element The field of the element being fed back in the first polarization direction is arranged before the sixth field corresponding to the element being fed back in the second polarization direction to ensure the reliability of information transmission.
- an information acquisition method is provided, as shown in FIG. 3, including:
- Step 301 Obtain the first bit sequence and the second bit sequence from the uplink control information.
- Step 302 Obtain the first partial field from the first bit sequence, and obtain the second partial field from the second bit sequence.
- Step 303 Based on the first partial field and the second partial field, obtain one or more information fields constituting the channel state information.
- the first partial field is used to carry at least one of the following information fields of channel state information: a field indicating the rank of precoding, a field indicating a wideband channel quality indicator of the first transport block, and a field indicating the information of the first transport block.
- the field of subband differential channel quality indication the field indicating the number of elements to be fed back in the first matrix;
- the second partial field is used to carry at least one of the following information fields of channel state information: a field indicating information of the second matrix, a field indicating the position of the strongest coefficient in the first matrix, and a field indicating the reference amplitude of the second polarization direction Domain, indicating the domain of the element being fed back in the first matrix; wherein the domain indicating the element being fed back in the first matrix includes: a domain indicating the magnitude of the element being fed back in the first matrix, indicating the first matrix The domain of the phase of the element being fed back in the matrix;
- the element in the second matrix is used to indicate the position of the element to be fed back in the first matrix.
- the network device may be a device on the network side, for example, it may be a base station on the network side.
- this embodiment may include the following processing procedures:
- Step 401 Receive uplink control information sent by a terminal device.
- Step 402 Obtain the first bit sequence and the second bit sequence from the uplink control information; obtain the first partial field from the first bit sequence, and obtain the second partial field from the second bit sequence; based on the first partial field And the second part of the field, to obtain one or more information fields constituting the channel state information.
- the precoding structure involved in this embodiment is the same as the previous example, and will not be repeated here.
- the acquiring one or more information fields constituting the channel state information based on the first partial field and the second partial field includes:
- the two-dimensional matrix elements constituting the second matrix are determined.
- the processing of converting a one-dimensional sequence into a two-dimensional matrix in this embodiment is contrary to the processing rule of mapping a two-dimensional matrix into a one-dimensional sequence in the previous embodiment, so the specific processing will not be repeated.
- the position of the strongest coefficient in the first matrix is determined based on the sequence of N bits contained in the second field in the second partial field; where N is an integer, and N is related to the number of maximum feedback elements.
- the determination of N is related to the number of maximum feedback elements.
- the determination method can adopt the following formula:
- K 0 is the number of maximum feedback elements in the first matrix C that the base station configures for the terminal and may be fed back.
- the coefficient in the first matrix C is the element in the first matrix C
- the coefficient means that the element in the first matrix C is the coefficient of the column in the matrix V and the row in the matrix U, that is, the position of the strongest coefficient in the matrix C It is the same as the position of the strongest element in the matrix C.
- the position of the strongest element in C is the index number l * of the row of the strongest element in C and the index number m * of the column, ie (l * , m * ), which can only be located in the element of matrix C indicated by the matrix C map Position, that is, there are at most K 0 possible positions, using A field sequence of bits is used to map one of K 0 possible positions, so that overhead can be saved to the greatest extent.
- the position indicated in the map field of the second matrix C and The corresponding relationship of the sequence state composed of bits is the first corresponding relationship.
- use The bits indicate the position of the strongest coefficient in the first matrix C.
- the position indicated in the map field of the second matrix C is the same as The corresponding relationship of the sequence state composed of bits is the second corresponding relationship.
- use The bits indicate the position of the strongest coefficient in the first matrix C.
- the first corresponding relationship is that the position indicated in the map field of the second matrix C corresponds to the sequence state in order, for example, the first position in the second matrix C map corresponds to The sequence state 0 composed of bits corresponds to the sequence state 0, and then the indicated incremental position corresponds to the incremental bit sequence state, for example, K 1 positions in the C map field.
- sequence state n refers to the number of sequence composition is n, for example, the lowest bit sequence 001 on the right side is the number 1, 010 is the number 2, 100 is the number 4; for example, the lowest bit sequence 001 on the left is the number 4, 010 The number is 2, 100 is the number 1.
- a sequence of N bits is used to indicate the position.
- the sequence state is 3
- the position in the second matrix corresponds to the sequence state from front to back, it means that the indication is in the second matrix.
- Corresponding in the order of the positions indicated in the map field of the second matrix C can reduce the complexity of calculating the position of the strongest element in the first matrix C; according to the order of the positions indicated in the map field of the second matrix C
- the relationship corresponding to the order of the sequence state can reduce the complexity of calculating the position of the strongest element in the first matrix C; the relationship between the first position indicated in the map field of the second matrix C and the sequence state 0 can be reduced
- the complexity of calculating the position of the strongest element in the first matrix C is small.
- the second correspondence is that the first position indicated in the C map field and the The sequence state (2 b -1) composed of bits corresponds to the sequence state (2 b -1), and then the indicated increasing position corresponds to the decreasing bit sequence state.
- the C map field indicates K 1 positions, where ⁇ first position, 2 position,..., K 1 position ⁇ corresponds to ⁇ sequence state 2 b -1, sequence state 2 b -2,..., sequence state 2 b -K 1 ⁇ in sequence;
- the sequence state n refers to the number of sequence composition is n, for example, the lowest bit sequence 001 on the right side is the number 1, 010 is the number 2, 100 is the number 4; for example, the lowest bit sequence 001 on the left is the number 4, 010 The number is 2, 100 is the number 1.
- this correspondence according to the order of the positions indicated in the map field of the second matrix C can reduce the complexity of calculating the position of the strongest element in the first matrix C; according to the position indicated in the map field of the second matrix C
- the corresponding relationship between the order of the positions and the reverse order of the sequence states can reduce the complexity of calculating the position of the strongest element in the first matrix C.
- the corresponding relationship between the first position indicated in the map field of the second matrix C and the end state of the sequence can reduce the complexity of calculating the position of the strongest element in the first matrix C.
- the second field contains a sequence composed of N bits; N is an integer, and N is related to the maximum number of feedback elements configured by the network device.
- the method for determining the sequence composed of N bits contained in the second field is as described above and will not be repeated here.
- the field carrying the field indicating the map information of the second matrix C is more important, because the field carrying the field indicating the position of the strongest coefficient in the first matrix C needs to depend on the second matrix to obtain the position of the strongest coefficient in the first matrix C C map information, and the top field in the uplink control information bit sequence is more reliable in transmission than the bottom field.
- the second field carrying the domain indicating the position of the strongest coefficient in the first matrix C is extracted; or, the domain of the second matrix C map information After the first field of, one or more other fields are followed, and then the second field carrying the field indicating the position of the strongest coefficient in the first matrix C is extracted.
- the information of the second matrix is determined based on the first field; the position of the strongest coefficient in the first matrix is determined based on the second field; the method of determining the position of the strongest coefficient based on the content of the second field can be as described above, here No longer.
- the coefficient amplitude and the coefficient phase corresponding to the coefficient in the first matrix are determined.
- the third field and the fourth field are adjacent, that is, there are no other fields. That is, when the third field is extracted from the second partial field, the adjacent field can be determined to be the fourth field, so as to obtain the coefficient amplitude and the coefficient phase corresponding to the coefficient in the first matrix.
- y is a coefficient reported by feedback in the first matrix C
- a y is the amplitude of y
- the field carrying A y is G y
- P y is the phase of y
- the field carrying P y is Hy
- a second bit sequence and the field field H y G y phase immediately, for example arranged in a G y H y, or H y G y are arranged
- H y wherein G y phase and immediately, without gaps other fields.
- z is another coefficient reported by feedback in the first matrix C
- Az is the amplitude of z
- the field carrying Az is G z
- P z is the phase of z
- the field carrying P z is H z
- the fields carrying the amplitude and phase of these two coefficients are arranged as G y H y G z H z , or arranged as H y G y H z G z , or arranged as G z H z G y H y , or arranged in a H z H z G z H y G y; wherein, G y H y phase and immediately, without gaps other field, G z and H z with immediately, with no other field interval.
- the close proximity of the amplitude-bearing field and the phase field corresponding to the same coefficient can shorten the time to obtain the same coefficient, and the obtained coefficient can be used without waiting for the acquisition of other coefficients, that is, the waiting time for using the coefficient can be shortened.
- the first polarization direction is the polarization direction corresponding to the strongest coefficient in the first matrix
- the second polarization direction is another polarization direction different from the first polarization direction.
- the fifth field and the sixth field are extracted from the second part of the field, and the fifth field located in front is determined as the element to be fed back for the first polarization direction according to the preset arrangement rule, and the sixth field is It is the feedback element in the second polarization direction.
- the field arrangement rule can be described as follows: the polarization direction corresponding to the strongest coefficient in the first matrix C is p A , and the fifth field contains the elements that are fed back with the polarization direction p A in the first matrix C:
- the magnitude of each coefficient corresponding to the load is as follows The fields corresponding to the phase carrying each coefficient are sequentially
- the other polarization direction is p B , that is, the sixth field contains the feedback element of the first matrix C with the polarization direction p B as
- the fields corresponding to the magnitude of each coefficient are as follows The fields corresponding to the phase carrying each coefficient are sequentially
- An example of the field arrangement is that the amplitude field and the phase field of the same coefficient are next to each other, the field corresponding to the polarization direction corresponding to the strongest coefficient is arranged first, and the field of the other polarization direction is arranged behind:
- the amplitude and phase of one coefficient corresponding to the two polarization inversions can be sequentially obtained according to this rule, and then the amplitude and phase of the next coefficient can be obtained, and finally the amplitude and phase corresponding to each coefficient can be obtained.
- Another example is to sort the field corresponding to the amplitude of the strongest polarization direction first, then the field of the phase corresponding to the strongest polarization direction, then the field of the amplitude corresponding to the other polarization direction, and finally the field of the phase corresponding to the other polarization direction.
- the amplitude and phase fields are obtained in sequence according to the arrangement rule. For example, it may be obtained by first obtaining K elements as the coefficient amplitudes of the first polarization direction, and then obtaining K elements as the coefficients of the first polarization direction Phase; The K elements obtained are the amplitude of the second polarization direction, and the last K elements are the coefficient phase of the second polarization direction.
- the amplitude and phase fields are obtained in sequence according to the arrangement rule. For example, it may be obtained by first obtaining K elements as the coefficient phase of the first polarization direction, and then obtaining K elements as the coefficient of the first polarization direction Amplitude; The K elements obtained are the phases of the second polarization direction, and the last K elements are the coefficient amplitudes of the second polarization direction.
- Such a processing method can arrange the field corresponding to the polarization direction corresponding to the strongest coefficient first, which can improve the reliability of transmission of the field corresponding to the polarization direction corresponding to the strongest coefficient, thereby ensuring the performance of uplink control information bit sequence transmission.
- the element to be fed back in the first matrix is determined based on the seventh field arranged after the second field.
- the element fed back in the first matrix C is obtained from the seventh field.
- the seventh field is extracted, and the element fed back in the first matrix C is obtained from the seventh field.
- the preset number can be obtained through pre-negotiation with the terminal device, or determined by the two parties according to a pre-determined agreement. For example, there can be 3 fields in between, or more or less, which is not exhaustive in this embodiment.
- Another way to indicate the field arrangement of the fields of the elements to be fed back in the first matrix, said obtaining one or more information fields constituting the channel state information based on the first partial field and the second partial field includes:
- the element to be fed back in the first matrix is determined based on the at least one field.
- the network device can determine which field in the channel state information corresponding to the extracted field according to the preset first bit sequence and the arrangement order of the fields in the second bit sequence; the preset first bit sequence
- the sequence of each field in one bit sequence and the second bit sequence can be determined according to the protocol or can be obtained through negotiation with the terminal device.
- the following provides an example of the preset sequence of each field in the first bit sequence and the second bit sequence:
- the first part of the fields are connected in order to form the first bit sequence, for example ⁇ a field that carries a field indicating the rank of precoding (Rank), a field that carries a wideband channel quality indicator (Wideband CQI) indicating the first transport block (TB)
- the field carries the field indicating the subband differential channel quality indicator (Subband differential CQI) field of the first transport block (TB), and the field carries the field indicating the number of elements to be fed back in the matrix C ⁇ ;
- the second part of the fields are sequentially connected into a second bit sequence, for example ⁇ a field that carries the field indicating the map information of the second matrix C, a field that carries the field indicating the position of the strongest coefficient in the first matrix C, and a field indicating the second pole
- the field of the domain of the reference amplitude of the transformation direction carries the field indicating the coefficient amplitude in the matrix C, the field carrying the field indicating the coefficient phase in the matrix C ⁇ , or ⁇ the field carrying the field indicating the bit matrix C map information, Carrying the field indicating the position of the strongest coefficient in matrix C, carrying the field indicating the reference amplitude of the second polarization direction, carrying the field indicating the coefficient phase in matrix C, carrying the field indicating the coefficient amplitude in matrix C Field of the domain ⁇ .
- the first partial field from the first bit sequence and obtain the second partial field from the second bit sequence; obtain one or more information fields that make up the channel state information based on the first partial field and the second partial field;
- the fields carrying the precoding information of each layer are arranged in the order of the precoding layer.
- the precoding rank is 2, that is, the precoding has a total of 2 layers, that is, ⁇ the first layer precoding, the second layer precoding ⁇ , and the fields of each layer are arranged in the order of the precoding layer as follows: ⁇ bearing the first layer precoding The coding information field, the field carrying the layer 2 precoding information ⁇ .
- the precoding rank is 3, that is, the precoding has a total of 3 layers, that is, ⁇ the first layer precoding, the second layer precoding, the third layer precoding ⁇ , and the fields of each layer are arranged in the order of the precoding layer It is as follows: ⁇ fields carrying precoding information of the first layer, fields carrying precoding information of the second layer, fields carrying precoding information of the third layer ⁇ .
- the precoding rank is 4, that is, the precoding has a total of 4 layers, that is, ⁇ the first layer precoding, the second layer precoding, the third layer precoding, the fourth layer precoding ⁇ , according to the precoding layer
- the order of the fields of each layer is as follows: ⁇ fields that carry layer 1 precoding information, fields that carry layer 2 precoding information, fields that carry layer 3 precoding information, and fields that carry layer 4 precoding information ⁇ .
- Obtaining the first partial field from the first bit sequence may include: obtaining, from the first bit in the first partial field in the first bit sequence, a field carrying a field indicating the number of elements to be fed back in the first matrix.
- the field carrying the field indicating the number of elements to be fed back in the first matrix is ranked first in the first partial field.
- the bearer indicates the first
- the field of the field of the number of elements to be fed back in the matrix is very important. Putting it at the top of the first part of the field can improve the transmission reliability of this field, thereby improving the transmission reliability of the uplink control information.
- the first partial field from the first bit sequence, and obtain one or more information fields constituting the channel state information based on the first partial field and the second partial field; wherein the bearer indication is determined according to the maximum value of the rank configured by the base station for the terminal The number of fields in the field of the number of elements to be fed back in the first matrix.
- the maximum value of the rank of the precoding required to be fed back by the base station for the terminal configuration is 1
- the number of fields carrying the fields indicating the number of elements to be fed back in the first matrix is 1
- each field carries a layer of precoding.
- the maximum value of the rank of the precoding required to be fed back by the base station for configuring the terminal is 2, the number of fields carrying the field indicating the number of elements to be fed back in the first matrix is 2, and each field carries a layer of precoding The field indicating the number of elements being fed back in the first matrix.
- the first field carries the field of the first layer precoding to indicate the number of elements fed back in the first matrix; the second field carries the field of the second layer precoding to indicate the number of elements in the first matrix.
- the maximum value of the rank of the precoding required to be fed back by the base station for the terminal configuration is 3, the number of fields carrying the fields indicating the number of elements to be fed back in the first matrix is 3, and each field carries a layer of precoding The field indicating the number of elements being fed back in the first matrix.
- the first field carries the field of the first layer precoding to indicate the number of elements fed back in the first matrix; the second field carries the field of the second layer precoding to indicate the number of elements in the first matrix.
- the field of the number of elements to be fed back; the third field carries the field of the third layer precoding to indicate the number of elements to be fed back in the first matrix.
- the maximum value of the rank of the precoding required to be fed back by the base station for configuring the terminal is 4, the number of fields carrying the field indicating the number of elements to be fed back in the first matrix is 4, and each field carries a layer of precoding The field indicating the number of elements being fed back in the first matrix.
- the first field carries the field of the first layer precoding to indicate the number of elements fed back in the first matrix; the second field carries the field of the second layer precoding to indicate the number of elements in the first matrix.
- the third field carries the field of the third layer precoding to indicate the number of elements to be fed back in the first matrix.
- the fourth field carries a field of the fourth layer precoding to indicate the number of elements to be fed back in the first matrix.
- determining the number of fields carrying fields indicating the number of elements to be fed back in the first matrix further includes: determining the number of non-zero values of the number carried by the fields The rank of the feedback precoding.
- the maximum value of the rank of the precoding required to be fed back by the base station for the terminal configuration is P
- the number of fields carrying the fields indicating the number of elements to be fed back in the first matrix is P
- each field carries a layer of precoding A field used to indicate the number of elements to be fed back in the first matrix; where the number of Q fields carried is non-zero, then the rank of the precoding to be fed back is determined to be Q; where P and Q are positive Integer.
- one or more information fields of channel state information can be obtained through uplink control information.
- the first bit sequence and the second bit sequence are obtained from the uplink control information, and the first bit sequence is obtained from the first bit sequence.
- Obtain the first partial field from the bit sequence obtain the second partial field from the second bit sequence, and obtain one or more information fields of the channel state information according to the first partial field and the second partial field; in this way, it is possible to obtain the uplink control information Channel state information.
- a terminal device as shown in FIG. 5, including:
- the mapping unit 51 is configured to map one or more information fields of channel state information to one or more fields of uplink control information
- the processing unit 52 is configured to divide the one or more fields into a first partial field and a second partial field; generate a first bit sequence according to the first partial field, and generate a second bit sequence according to the second partial field;
- the first partial field is used to carry at least one of the following information fields of channel state information: a field indicating the rank of precoding, a field indicating a wideband channel quality indicator of the first transport block, and a field indicating the information of the first transport block.
- the field of subband differential channel quality indication the field indicating the number of elements to be fed back in the first matrix;
- the second partial field is used to carry at least one of the following information fields of channel state information: a field indicating information of the second matrix, a field indicating the position of the strongest coefficient in the first matrix, and a field indicating the reference amplitude of the second polarization direction Domain, indicating the domain of the element being fed back in the first matrix; wherein the domain indicating the element being fed back in the first matrix includes: a domain indicating the magnitude of the element being fed back in the first matrix, indicating the first matrix The domain of the phase of the element being fed back in the matrix;
- the element in the second matrix is used to indicate the position of the element to be fed back in the first matrix.
- This embodiment can be applied to the terminal device side. After completing the foregoing processing, it may further include: sending uplink control information to a network device; wherein, the network device may be a device on the network side, for example, it may be a base station on the network side.
- this embodiment may further include: an information sending unit 53 configured to send the uplink control information to the network device.
- the uplink control information finally sent to the network device is the uplink control information including the first bit sequence and the second bit sequence, that is, the uplink control information of one or more information domains mapped with channel state information.
- the mapping unit 51 the field indicating the information of the second matrix in the channel state information is mapped to the first field of the uplink control information; wherein, the first field contains a one-dimensional sequence, and the one-dimensional sequence consists of The two-dimensional matrix elements of the second matrix are obtained by mapping.
- the first field and the second field in this embodiment do not represent the order of the fields, and are only used to distinguish different fields.
- the specific arrangement order is irrelevant.
- the first field can be arranged before the second field.
- the first field can also be arranged after the second field; of course, this embodiment can also include more fields, for example, the third field, the fourth field, the fifth field and more, which do not represent each field.
- the arrangement order of is only used to distinguish each field.
- each field when each field is specifically arranged, it can be the first field-the second field-the fourth field-the sixth field-the third field-the fifth field.
- the expression method thereof shall not prevail, but shall prevail according to the subsequent rules or description, and the description will not be repeated below.
- the way to perform the mapping may be to add the elements of the two-dimensional matrix to the one-dimensional sequence in the order of increasing rows of the second matrix, and finally obtain the mapped one-dimensional sequence as the first of the uplink control information. Field.
- the second matrix such as It is a matrix with 2L rows and M columns, a two-dimensional bit matrix, in which the elements indicate the first matrix in a bit-mapped manner Whether the elements in are reported.
- the mapping of the second matrix C from the map matrix to the bit sequence in the field is a mapping from two-dimensional matrix elements to a one-dimensional sequence, that is, the field mapped into the two-dimensional matrix is a one-dimensional sequence.
- a first field sequence of the second bitmap matrix C map the uplink control information is mapped in the second row of the matrix C map matrix, then the matrix C map all of the second element of the second matrix C map i.e. the next row All elements in a row are sequentially mapped to the sequence in the field.
- the mapping unit 51 is configured to map the field indicating the position of the strongest coefficient in the first matrix in the channel state information to the second field of the uplink control information; wherein, the second field contains a field consisting of N bits Sequence; N is an integer, and N is related to the maximum number of feedback elements configured by the network device.
- the determination of N is related to the number of maximum feedback elements.
- the determination method can adopt the following formula:
- K 0 is the number of maximum feedback elements in the first matrix C that the base station configures for the terminal and may be fed back.
- the coefficient in the first matrix C is the element in the first matrix C
- the coefficient means that the element in the first matrix C is the coefficient of the column in the matrix V and the row in the matrix U, that is, the position of the strongest coefficient in the matrix C It is the same as the position of the strongest element in the matrix C.
- the position of the strongest element in C is the index number l * of the row of the strongest element in C and the index number m * of the column, that is (l * , m * ), which can only be located at the first indicated by the second matrix C map
- the positions of the elements of matrix C that is, there are at most K 0 possible positions, use A field sequence of bits is used to map one of K 0 possible positions, so that overhead can be saved to the greatest extent.
- the position indicated in the map field of the second matrix C and The corresponding relationship of the sequence state composed of bits is the first corresponding relationship.
- use The bits indicate the position of the strongest coefficient in the first matrix C.
- the position indicated in the map field of the second matrix C is the same as
- the corresponding relationship of the sequence state composed of bits is the second corresponding relationship. According to the second corresponding relationship, use The bits indicate the position of the strongest coefficient in the first matrix C.
- the first corresponding relationship is that the position indicated in the map field of the second matrix C corresponds to the sequence state in order, for example, the first position in the second matrix C map corresponds to The sequence state 0 composed of bits corresponds to the sequence state 0, and then the indicated incremental position corresponds to the incremental bit sequence state, for example, K 1 positions are indicated in the C map field.
- sequence state n refers to the number of sequence composition is n, for example, the lowest bit sequence 001 on the right side is the number 1, 010 is the number 2, 100 is the number 4; for example, the lowest bit sequence 001 on the left is the number 4, 010 The number is 2, 100 is the number 1.
- a sequence of N bits is used to indicate the position.
- the sequence state is 3
- the position in the second matrix corresponds to the sequence state from front to back, it means that the indication is in the second matrix.
- the 4th position is 3
- Corresponding in the order of the positions indicated in the map field of the second matrix C can reduce the complexity of calculating the position of the strongest element in the first matrix C; according to the order of the positions indicated in the map field of the second matrix C
- the relationship corresponding to the order of the sequence state can reduce the complexity of calculating the position of the strongest element in the first matrix C; the relationship between the first position indicated in the map field of the second matrix C and the sequence state 0 can be reduced
- the complexity of calculating the position of the strongest element in the first matrix C is small.
- the second correspondence is that the first position indicated in the map field of the second matrix C and the The sequence state (2 b -1) constituted by bits corresponds to, and then the indicated increasing position corresponds to the decreasing bit sequence state.
- the map field of the second matrix C indicates K 1 positions, where ⁇ 1st position, 2nd position,..., K 1th position ⁇ and ⁇ sequence state 2 b -1, sequence state 2 b -2, ..., the sequence state 2 b -K 1 ⁇ corresponds to each other in sequence;
- the sequence state n refers to the number of sequence composition is n, for example, the lowest bit sequence 001 on the right side is the number 1, 010 is the number 2, 100 is the number 4; for example, the lowest bit sequence 001 on the left is the number 4, 010 The number is 2, 100 is the number 1.
- this correspondence according to the order of the positions indicated in the map field of the second matrix C can reduce the complexity of calculating the position of the strongest element in the first matrix C; according to the position indicated in the map field of the second matrix C
- the corresponding relationship between the order of the positions and the reverse order of the sequence states can reduce the complexity of calculating the position of the strongest element in the first matrix C.
- the corresponding relationship between the first position indicated in the map field of the second matrix C and the end state of the sequence can reduce the complexity of calculating the position of the strongest element in the first matrix C.
- the first bit sequence is generated according to the first part of the field
- the second bit sequence is generated according to the second part of the field.
- the following description is mainly given for the second part of the field to form the second bit sequence:
- the processing unit 52 arranges the second field that carries the field indicating the position of the strongest coefficient in the first matrix after the first field of the field that carries the information indicating the second matrix; wherein, the second field contains N A sequence of bits; N is an integer, and N is related to the maximum number of feedback elements configured by the network device.
- the method for determining the sequence composed of N bits contained in the second field is as described above and will not be repeated here.
- the field carrying the field indicating the map information of the second matrix C is more important, because the field carrying the field indicating the position of the strongest coefficient in the first matrix C needs to depend on the second matrix to obtain the position of the strongest coefficient in the first matrix C C map information, and the top field in the uplink control information bit sequence is more reliable in transmission than the bottom field.
- the domain of the second matrix C For example, after carrying the first field indicating the domain of the map information of the second matrix C, immediately carrying the second field indicating the domain of the strongest coefficient position in the first matrix C; or, the domain of the second matrix C map information After the first field, one or more other fields are followed, and a second field carrying the field indicating the position of the strongest coefficient in the first matrix C is added.
- Generating the second bit sequence according to the second part of the field may also include: combining the third field corresponding to the same coefficient in the first matrix with the field indicating the coefficient amplitude in the first matrix and the third field in the first matrix indicating the The fourth field of the field of the coefficient phase is set to be adjacently arranged.
- y is a coefficient reported by feedback in the first matrix C
- a y is the amplitude of y
- the field carrying A y is G y
- P y is the phase of y
- the field carrying P y is Hy
- a second bit sequence and the field field H y G y phase immediately, for example arranged in a G y H y, or H y G y are arranged
- H y wherein G y phase and immediately, without gaps other fields.
- z is another coefficient reported by feedback in the first matrix C
- Az is the amplitude of z
- the field carrying Az is G z
- P z is the phase of z
- the field carrying P z is H z
- the fields carrying the amplitude and phase of these two coefficients are arranged as G y H y G z H z , or arranged as H y G y H z G z , or arranged as G z H z G y H y , or arranged in a H z H z G z H y G y; wherein, G y H y phase and immediately, without gaps other field, G z and H z with immediately, with no other field interval.
- the close proximity of the amplitude-bearing field and the phase field corresponding to the same coefficient can shorten the time to obtain the same coefficient, and the obtained coefficient can be used without waiting for the acquisition of other coefficients, that is, the waiting time for using the coefficient can be shortened.
- the processing unit 52 arranges the fifth field carrying the feedback element corresponding to the first polarization direction in the first matrix before the sixth field carrying the feedback element corresponding to the second polarization direction of the first matrix ;
- the first polarization direction is the polarization direction corresponding to the strongest coefficient in the first matrix
- the second polarization direction is another polarization direction different from the first polarization direction.
- the polarization direction of the coefficient in the first matrix C refers to the polarization direction of the column vector in the matrix V corresponding to the coefficient.
- the element corresponding to the antenna port of the polarization direction is not zero, and the other polarization The element corresponding to the antenna port of the direction is zero.
- the row of the first half of the sequence number of the first matrix C belongs to one polarization direction, for example, the row of index number ⁇ 0,1,...,L-1 ⁇ belongs to one polarization direction; the row of the second half of the sequence number belongs to another The polarization direction, for example, the row with index number ⁇ L,L+1,...,2L-1 ⁇ belongs to another polarization direction; the polarization direction of the coefficient in the first matrix C means that the coefficient is in the first matrix C The polarization direction of the row.
- the field arrangement can be described as follows: For example, the polarization direction corresponding to the strongest coefficient in the first matrix C is p A , and the element that is fed back with the polarization direction p A in the first matrix C is The fields corresponding to the magnitude of each coefficient are as follows The fields corresponding to the phase carrying each coefficient are sequentially The other polarization direction is p B , and the element that is fed back in the first matrix C with the polarization direction p B is The fields corresponding to the magnitude of each coefficient are as follows The fields corresponding to the phase carrying each coefficient are sequentially
- An example of the field arrangement is that the amplitude field and the phase field of the same coefficient are next to each other, the field corresponding to the polarization direction corresponding to the strongest coefficient is arranged first, and the field of the other polarization direction is arranged behind:
- Another example is to sort the field corresponding to the amplitude of the strongest polarization direction first, then the field of the phase corresponding to the strongest polarization direction, then the field of the amplitude corresponding to the other polarization direction, and finally the field of the phase corresponding to the other polarization direction.
- Another example of arrangement is to arrange the field of the phase corresponding to the strongest polarization direction first, then the field of the amplitude corresponding to the strongest polarization direction, then the field of the phase corresponding to the other polarization direction, and finally the field of the phase corresponding to the other polarization direction.
- Such a processing method can arrange the field corresponding to the polarization direction corresponding to the strongest coefficient first, and can improve the reliability of transmission of the field corresponding to the polarization direction corresponding to the strongest coefficient, thereby improving the performance of uplink control information bit sequence transmission.
- the processing unit 52 sets the second field carrying the field indicating the position of the strongest coefficient in the first matrix before the seventh field carrying the field indicating the element being fed back in the first matrix.
- the seventh field carrying the field indicating the element being fed back in the first matrix C is immediately after the second field carrying the field indicating the position of the strongest coefficient in the first matrix C;
- the seventh field that carries the field indicating the element being fed back in the first matrix C is after the second field that carries the field indicating the position of the strongest coefficient in the first matrix C, with one or more other fields in between.
- the processing unit 52 arranges the fields that carry the elements that are fed back in the first matrix based on the order of the elements that are fed back in the first matrix indicated by the first field that carries the information of the second matrix. At least one field.
- the elements to be fed back in the first matrix C are in the order of the coefficients indicated in the first field carrying the map information of the second matrix C:
- the fields corresponding to the magnitude of each coefficient are as follows
- the fields corresponding to the phase carrying each coefficient are sequentially
- the fields carrying the amplitude of each coefficient and the fields carrying the phase of each coefficient are arranged as
- the fields carrying the above-mentioned information fields are arranged as: ⁇ field carrying the field indicating the bit matrix C map information, carrying the field indicating the position of the strongest coefficient in the first matrix C, carrying the reference amplitude indicating the second polarization direction
- the field of the domain which carries the field indicating the domain of the coefficient amplitude in the first matrix C, and the field indicating the domain of the coefficient phase in the C matrix ⁇ ;
- Another field arrangement can be: ⁇ a field that carries the field indicating the map information of the second matrix C, a field that carries the field indicating the position of the strongest coefficient in the first matrix C, and a field that indicates the reference amplitude of the second polarization direction
- the field indicates the domain of the coefficient phase in the first matrix C, and carries the field indicating the domain of the coefficient amplitude in the first matrix C ⁇ .
- the processing unit 52 arranges the fields carrying the precoding information of each layer according to the order of the precoding layers.
- the precoding rank is 2, that is, the precoding has a total of 2 layers, that is, ⁇ the first layer precoding, the second layer precoding ⁇ , and the fields of each layer are arranged in the order of the precoding layer as follows: ⁇ bearing the first layer precoding The coding information field, the field carrying the layer 2 precoding information ⁇ .
- the precoding rank is 3, that is, the precoding has a total of 3 layers, that is, ⁇ the first layer precoding, the second layer precoding, the third layer precoding ⁇ , and the fields of each layer are arranged in the order of the precoding layer It is as follows: ⁇ fields carrying precoding information of the first layer, fields carrying precoding information of the second layer, fields carrying precoding information of the third layer ⁇ .
- the precoding rank is 4, that is, the precoding has a total of 4 layers, that is, ⁇ the first layer precoding, the second layer precoding, the third layer precoding, the fourth layer precoding ⁇ , according to the precoding layer
- the order of the fields of each layer is as follows: ⁇ fields that carry layer 1 precoding information, fields that carry layer 2 precoding information, fields that carry layer 3 precoding information, and fields that carry layer 4 precoding information ⁇ .
- the processing unit 52 arranges the fields carrying the precoding information of each layer according to the order of the precoding layers.
- the processing unit 52 ranks the field carrying the field indicating the number of elements to be fed back in the first matrix at the first part of the field.
- the processing unit 52 determines, according to the maximum value of the rank configured by the base station for the terminal, the number of fields carrying the fields indicating the number of elements to be fed back in the first matrix.
- the processing unit 52 the number of non-zero values of the number carried by the field indicates the rank of the precoding fed back.
- the first part of the fields are connected in order to form the first bit sequence, for example ⁇ a field that carries a field indicating the rank of precoding (Rank), a field that carries a wideband channel quality indicator (Wideband CQI) indicating the first transport block (TB)
- the field carries the field indicating the subband differential channel quality indicator (Subband differential CQI) field of the first transport block (TB), and the field carries the field indicating the number of elements to be fed back in the matrix C ⁇ ;
- the second part of the fields are sequentially connected into a second bit sequence, for example ⁇ a field that carries the field indicating the map information of the second matrix C, a field that carries the field indicating the position of the strongest coefficient in the first matrix C, and a field indicating the second pole
- the field of the domain of the reference amplitude of the transformation direction carries the field indicating the coefficient amplitude in the matrix C, the field carrying the field indicating the coefficient phase in the matrix C ⁇ , or ⁇ the field carrying the field indicating the bit matrix C map information, Carrying the field indicating the position of the strongest coefficient in matrix C, carrying the field indicating the reference amplitude of the second polarization direction, carrying the field indicating the coefficient phase in matrix C, carrying the field indicating the coefficient amplitude in matrix C Field of the domain ⁇ .
- the terminal device may include mobile phones, smart phones, notebook computers, digital broadcast receivers, and personal digital assistants (PDAs). ), tablet computers (Portable Android Device, PAD), portable multimedia players (Portable Media Player, PMP), mobile terminals such as navigation devices, and fixed terminals such as digital (television, TV), desktop computers, etc.
- PDAs personal digital assistants
- PMP portable multimedia players
- mobile terminals such as navigation devices
- fixed terminals such as digital (television, TV), desktop computers, etc.
- the terminal is a mobile terminal.
- the configuration according to the embodiments of the present application can also be applied to fixed-type terminals.
- the terminal device may include a wireless communication unit, which may be specifically composed of a transmitter 61 and a receiver 62 in the figure, a processor 63, a memory 64, a power module 65, and so on.
- the figure shows a terminal device with various components, but it should be understood that implementation of all the shown components is not required. More or fewer components can be implemented instead.
- the foregoing transmitter may be a physical component of the information sending unit in this embodiment; the processor may be a processing unit and a mapping unit in this embodiment.
- one or more information fields of channel state information can be mapped to uplink control information, specifically to the first part of the field and the second part of the uplink control information, and by The first part of the field and the second part of the field respectively constitute the first bit sequence and the second bit sequence; in this way, the channel state information can be mapped to the uplink control information.
- the above-mentioned embodiment also provides mapping the domain of the position of the strongest element in the first matrix to a sequence of N bits, the complexity of calculating the position of the strongest element in the first matrix is reduced; and by mapping the strongest element The field of the element being fed back in the first polarization direction is arranged before the sixth field corresponding to the element being fed back in the second polarization direction to ensure the reliability of information transmission.
- a network device including:
- the information extraction unit 71 is configured to obtain the first bit sequence and the second bit sequence from the uplink control information; obtain the first partial field from the first bit sequence, and obtain the second partial field from the second bit sequence;
- the information processing unit 72 is configured to obtain one or more information fields constituting the channel state information based on the first partial field and the second partial field;
- the first partial field is used to carry at least one of the following information fields of channel state information: a field indicating the rank of precoding, a field indicating a wideband channel quality indicator of the first transport block, and a field indicating the information of the first transport block.
- the field of subband differential channel quality indication the field indicating the number of elements to be fed back in the first matrix;
- the second partial field is used to carry at least one of the following information fields of channel state information: a field indicating information of the second matrix, a field indicating the position of the strongest coefficient in the first matrix, and a field indicating the reference amplitude of the second polarization direction Domain, indicating the domain of the element being fed back in the first matrix; wherein the domain indicating the element being fed back in the first matrix includes: a domain indicating the magnitude of the element being fed back in the first matrix, indicating the first matrix The domain of the phase of the element being fed back in the matrix;
- the element in the second matrix is used to indicate the position of the element to be fed back in the first matrix.
- the network device may further include: an information receiving unit 73, configured to receive uplink control information sent by the terminal device.
- the network device in this embodiment may be a device on the network side, such as a base station.
- the precoding structure involved in this embodiment is the same as the previous example, and will not be repeated here.
- the information processing unit 72 determines the two-dimensional matrix elements that constitute the second matrix based on the one-dimensional sequence contained in the first field contained in the second partial field.
- the processing of converting a one-dimensional sequence into a two-dimensional matrix in this embodiment is contrary to the processing rule of mapping a two-dimensional matrix into a one-dimensional sequence in the previous embodiment, so the specific processing will not be repeated.
- the position of the strongest coefficient in the first matrix is determined based on the sequence of N bits contained in the second field in the second partial field; where N is an integer, and N is related to the number of maximum feedback elements.
- the determination of N is related to the number of maximum feedback elements.
- the determination method can adopt the following formula:
- K 0 is the number of maximum feedback elements in the first matrix C that the base station configures for the terminal and may be fed back.
- the coefficient in the first matrix C is the element in the first matrix C
- the coefficient means that the element in the first matrix C is the coefficient of the column in the matrix V and the row in the matrix U, that is, the position of the strongest coefficient in the matrix C It is the same as the position of the strongest element in the matrix C.
- the position of the strongest element in C is the index number l * of the row of the strongest element in C and the index number m * of the column, ie (l * , m * ), which can only be located in the element of matrix C indicated by the matrix C map Position, that is, there are at most K 0 possible positions, using A field sequence of bits is used to map one of K 0 possible positions, so that overhead can be saved to the greatest extent.
- the position indicated in the map field of the second matrix C and The corresponding relationship of the sequence state composed of bits is the first corresponding relationship.
- use The bits indicate the position of the strongest coefficient in the first matrix C.
- the position indicated in the map field of the second matrix C is the same as The corresponding relationship of the sequence state composed of bits is the second corresponding relationship.
- use The bits indicate the position of the strongest coefficient in the first matrix C.
- the first corresponding relationship is that the position indicated in the map field of the second matrix C corresponds to the sequence state in order, for example, the first position in the second matrix C map corresponds to The sequence state 0 composed of bits corresponds to the sequence state 0, and then the indicated incremental position corresponds to the incremental bit sequence state, for example, K 1 positions in the C map field.
- sequence state n refers to the number of sequence composition is n, for example, the lowest bit sequence 001 on the right side is the number 1, 010 is the number 2, 100 is the number 4; for example, the lowest bit sequence 001 on the left is the number 4, 010 The number is 2, 100 is the number 1.
- a sequence of N bits is used to indicate the position.
- the sequence state is 3
- the position in the second matrix corresponds to the sequence state from front to back, it means that the indication is in the second matrix.
- Corresponding in the order of the positions indicated in the map field of the second matrix C can reduce the complexity of calculating the position of the strongest element in the first matrix C; according to the order of the positions indicated in the map field of the second matrix C
- the relationship corresponding to the order of the sequence state can reduce the complexity of calculating the position of the strongest element in the first matrix C; the relationship between the first position indicated in the map field of the second matrix C and the sequence state 0 can be reduced
- the complexity of calculating the position of the strongest element in the first matrix C is small.
- the second correspondence is that the first position indicated in the C map field and the The sequence state (2 b -1) composed of bits corresponds to the sequence state (2 b -1), and then the indicated increasing position corresponds to the decreasing bit sequence state.
- the C map field indicates K 1 positions, where ⁇ first position, 2 position,..., K 1 position ⁇ corresponds to ⁇ sequence state 2 b -1, sequence state 2 b -2,..., sequence state 2 b -K 1 ⁇ in sequence;
- the sequence state n refers to the number of sequence composition is n, for example, the lowest bit sequence 001 on the right side is the number 1, 010 is the number 2, 100 is the number 4; for example, the lowest bit sequence 001 on the left is the number 4, 010 The number is 2, 100 is the number 1.
- this correspondence according to the order of the positions indicated in the map field of the second matrix C can reduce the complexity of calculating the position of the strongest element in the first matrix C; according to the position indicated in the map field of the second matrix C
- the corresponding relationship between the order of the positions and the reverse order of the sequence states can reduce the complexity of calculating the position of the strongest element in the first matrix C.
- the corresponding relationship between the first position indicated in the map field of the second matrix C and the end state of the sequence can reduce the complexity of calculating the position of the strongest element in the first matrix C.
- the information processing unit 72 determines the information of the second matrix based on the first field in the second partial field; and determines the position of the strongest coefficient in the first matrix based on the second field that is arranged after the first field in the second partial field ;
- the second field contains a sequence composed of N bits; N is an integer, and N is related to the maximum number of feedback elements configured by the network device.
- the method for determining the sequence composed of N bits contained in the second field is as described above and will not be repeated here.
- the field carrying the field indicating the map information of the second matrix C is more important, because the field carrying the field indicating the position of the strongest coefficient in the first matrix C needs to depend on the second matrix to obtain the position of the strongest coefficient in the first matrix C C map information, and the top field in the uplink control information bit sequence is more reliable in transmission than the bottom field.
- the second field carrying the domain indicating the position of the strongest coefficient in the first matrix C is extracted; or, the domain of the second matrix C map information After the first field of, one or more other fields are followed, and then the second field carrying the field indicating the position of the strongest coefficient in the first matrix C is extracted.
- the information of the second matrix is determined based on the first field; the position of the strongest coefficient in the first matrix is determined based on the second field; the method of determining the position of the strongest coefficient based on the content of the second field can be as described above, here No longer.
- the information processing unit 72 determines the coefficient amplitude and the coefficient phase corresponding to the coefficient in the first matrix based on the adjacent third field and the fourth field in the second partial field.
- the third field and the fourth field are adjacent, that is, there are no other fields. That is, when the third field is extracted from the second partial field, the adjacent field can be determined to be the fourth field, so as to obtain the coefficient amplitude and the coefficient phase corresponding to the coefficient in the first matrix.
- y is a coefficient reported by feedback in the first matrix C
- a y is the amplitude of y
- the field carrying A y is G y
- P y is the phase of y
- the field carrying P y is Hy
- a second bit sequence and the field field H y G y phase immediately, for example arranged in a G y H y, or H y G y are arranged
- H y wherein G y phase and immediately, without gaps other fields.
- z is another coefficient reported by feedback in the first matrix C
- Az is the amplitude of z
- the field carrying Az is G z
- P z is the phase of z
- the field carrying P z is H z
- the fields carrying the amplitude and phase of these two coefficients are arranged as G y H y G z H z , or arranged as H y G y H z G z , or arranged as G z H z G y H y , or arranged in a H z H z G z H y G y; wherein, G y H y phase and immediately, without gaps other field, G z and H z with immediately, with no other field interval.
- the close proximity of the amplitude-bearing field and the phase field corresponding to the same coefficient can shorten the time to obtain the same coefficient, and the obtained coefficient can be used without waiting for the acquisition of other coefficients, that is, the waiting time for using the coefficient can be shortened.
- the information processing unit 72 determines, based on the fifth field in the second partial field, the element to be fed back corresponding to the first polarization direction in the first matrix;
- the first polarization direction is the polarization direction corresponding to the strongest coefficient in the first matrix
- the second polarization direction is another polarization direction different from the first polarization direction.
- the fifth field and the sixth field are extracted from the second part of the field, and the fifth field located in front is determined as the element to be fed back for the first polarization direction according to the preset arrangement rule, and the sixth field is It is the feedback element in the second polarization direction.
- the field arrangement rule can be described as follows: the polarization direction corresponding to the strongest coefficient in the first matrix C is p A , and the fifth field contains the elements that are fed back with the polarization direction p A in the first matrix C:
- the magnitude of each coefficient corresponding to the load is as follows The fields corresponding to the phase carrying each coefficient are sequentially
- the other polarization direction is p B , that is, the sixth field contains the elements that are fed back in the first matrix C with the polarization direction p B as
- the fields corresponding to the magnitude of each coefficient are as follows
- the fields corresponding to the phase carrying each coefficient are sequentially
- An example of the field arrangement is that the amplitude field and the phase field of the same coefficient are next to each other, the field corresponding to the polarization direction corresponding to the strongest coefficient is arranged first, and the field of the other polarization direction is arranged behind:
- the amplitude and phase of one coefficient corresponding to the two polarization inversions can be sequentially obtained according to this rule, and then the amplitude and phase of the next coefficient can be obtained, and finally the amplitude and phase corresponding to each coefficient can be obtained.
- the amplitude and phase fields are obtained in sequence according to the arrangement rule. For example, it may be obtained by first obtaining K elements as the coefficient amplitudes of the first polarization direction, and then obtaining K elements as the coefficients of the first polarization direction Phase; The K elements obtained are the amplitude of the second polarization direction, and the last K elements are the coefficient phase of the second polarization direction.
- the amplitude and phase fields are obtained in sequence according to the arrangement rule. For example, it may be obtained by first obtaining K elements as the coefficient phase of the first polarization direction, and then obtaining K elements as the coefficient of the first polarization direction Amplitude; The K elements obtained are the phases of the second polarization direction, and the last K elements are the coefficient amplitudes of the second polarization direction.
- Such a processing method can arrange the field corresponding to the polarization direction corresponding to the strongest coefficient first, and can improve the reliability of transmission of the field corresponding to the polarization direction corresponding to the strongest coefficient, thereby ensuring the performance of uplink control information bit sequence transmission.
- the information processing unit 72 determines the position of the strongest coefficient in the first matrix based on the second field
- the element to be fed back in the first matrix is determined based on the seventh field arranged after the second field.
- the element fed back in the first matrix C is obtained from the seventh field.
- the seventh field is extracted, and the element fed back in the first matrix C is obtained from the seventh field.
- the preset number can be obtained through pre-negotiation with the terminal device, or determined by the two parties according to a pre-determined agreement. For example, there can be 3 fields in between, or more or less, which is not exhaustive in this embodiment.
- Another way to indicate the field arrangement of the fields of the elements to be fed back in the first matrix, said obtaining one or more information fields constituting the channel state information based on the first partial field and the second partial field includes:
- the element to be fed back in the first matrix is determined based on the at least one field.
- the network device can determine which field in the channel state information corresponding to the extracted field according to the preset sequence of the first bit sequence and the sequence of each field in the second bit sequence; the preset The sequence of each field in the first bit sequence and the second bit sequence can be determined according to the protocol, or can be negotiated with the terminal device.
- the following provides an example of the preset sequence of each field in the first bit sequence and the second bit sequence:
- the first part of the fields are connected in order to form the first bit sequence, for example ⁇ a field that carries a field indicating the rank of precoding (Rank), a field that carries a wideband channel quality indicator (Wideband CQI) indicating the first transport block (TB)
- the field carries the field indicating the subband differential channel quality indicator (Subband differential CQI) field of the first transport block (TB), and the field carries the field indicating the number of elements to be fed back in the matrix C ⁇ ;
- the second part of the fields are sequentially connected into a second bit sequence, for example ⁇ a field that carries the field indicating the map information of the second matrix C, a field that carries the field indicating the position of the strongest coefficient in the first matrix C, and a field indicating the second pole
- the field of the domain of the reference amplitude of the transformation direction carries the field indicating the coefficient amplitude in the matrix C, the field carrying the field indicating the coefficient phase in the matrix C ⁇ , or ⁇ the field carrying the field indicating the bit matrix C map information, Carrying the field indicating the position of the strongest coefficient in matrix C, carrying the field indicating the reference amplitude of the second polarization direction, carrying the field indicating the coefficient phase in matrix C, carrying the field indicating the coefficient amplitude in matrix C Field of the domain ⁇ .
- the fields carrying the precoding information of each layer are arranged in the order of the precoding layer.
- the information extraction unit is configured to obtain a field carrying a field indicating the number of elements to be fed back in the first matrix from the first bit in the first partial field in the first bit sequence.
- the field carrying the field indicating the number of elements to be fed back in the first matrix is ranked first in the first partial field.
- the information processing unit is configured to determine, according to the maximum value of the rank configured by the base station for the terminal, the number of fields carrying the field indicating the number of elements to be fed back in the first matrix. Specifically, the rank of the precoding fed back may be determined by the number of non-zero values of the number carried in the field.
- FIG. 10 is a schematic diagram of the hardware structure of a network device in this embodiment, such as a base station, which includes a transmitter 81, a receiver 82, a power module 85, a memory 84, and a processor 83.
- one or more information fields of channel state information can be obtained through uplink control information.
- the first bit sequence and the second bit sequence are obtained from the uplink control information, and the first bit sequence is obtained from the first bit sequence.
- Obtain the first partial field from the bit sequence obtain the second partial field from the second bit sequence, and obtain one or more information fields of the channel state information according to the first partial field and the second partial field; in this way, it is possible to obtain the uplink control information Channel state information.
- FIG. 11 is a schematic structural diagram of an embodiment of a terminal device of this application.
- a terminal device 130 provided in an embodiment of this application includes a memory 1303 and a processor 1304.
- the terminal device 130 may also include an interface 1301 and a bus 1302.
- the interface 1301, the memory 1303 and the processor 1304 are connected through a bus 1302.
- the memory 1303 is used to store instructions.
- the processor 1304 is configured to read the instructions to execute the technical solutions of the foregoing method embodiments applied to the terminal device. The implementation principles and technical effects are similar, and details are not described herein again.
- FIG. 12 is a schematic structural diagram of an embodiment of a base station of this application.
- a base station 140 provided in an embodiment of this application includes a memory 1403 and a processor 1404.
- the base station may further include an interface 1401 and a bus 1402.
- the interface 1401, the memory 1403 and the processor 1404 are connected through a bus 1402.
- the memory 1403 is used to store instructions.
- the processor 1404 is configured to read the instructions to execute the technical solutions of the foregoing method embodiments applied to the base station. The implementation principles and technical effects are similar, and details are not described herein again.
- FIG. 13 is a schematic structural diagram of an embodiment of a communication system of this application.
- the terminal device may be the user equipment (UE) 110, 120, and 130 in the figure as an example.
- the function of the UE is the same as the foregoing embodiment, and will not be repeated.
- the system includes: the user equipment 130 in the foregoing embodiment and the base station 140 in the foregoing embodiment.
- the base station in the figure may be the network device in the embodiment, and the user equipment is the aforementioned terminal device, and the functions that can be implemented are the same as the aforementioned functions, which will not be repeated here.
- user terminal encompasses any suitable type of wireless user equipment, such as mobile phones, portable data processing devices, portable web browsers, or vehicle-mounted mobile stations.
- the various embodiments of the present application can be implemented in hardware or dedicated circuits, software, logic or any combination thereof.
- some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software that may be executed by a controller, microprocessor or other computing device, although the application is not limited thereto.
- the embodiments of the present application may be implemented by executing computer program instructions by a data processor of a mobile device, for example, in a processor entity, or by hardware, or by a combination of software and hardware.
- Computer program instructions can be assembly instructions, Industry Subversive Alliance (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, status setting data, or written in any combination of one or more programming languages Source code or object code.
- ISA Industry Subversive Alliance
- the block diagram of any logical flow in the drawings of the present application may represent program steps, or may represent interconnected logic circuits, modules, and functions, or may represent a combination of program steps and logic circuits, modules, and functions.
- the computer program can be stored on the memory.
- the memory can be of any type suitable for the local technical environment and can be implemented using any suitable data storage technology.
- the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
- the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory, etc.
- the volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache.
- RAM can include many forms, such as static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronization Dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (Synchlink DRAM, SLDRAM) and direct memory bus random access Memory (Direct Rambus RAM, DR RAM).
- Static RAM, SRAM static random access memory
- DRAM dynamic random access memory
- synchronous dynamic random access memory Synchronous DRAM, SDRAM
- Double data rate synchronization Dynamic random access memory Double Data Rate SDRAM, DDR SDRAM
- Enhanced SDRAM, ESDRAM enhanced synchronous dynamic random access memory
- Synchlink DRAM, SLDRAM synchronous connection dynamic random access memory
- Direct Rambus RAM Direct Rambus RAM
- the processor of the embodiment of the present application may be of any type suitable for the local technical environment, such as but not limited to general-purpose computers, special-purpose computers, microprocessors, digital signal processors (Digital Signal Processors, DSP), and application specific integrated circuits (Application Specific Integrated Circuit, ASIC), Field-Programmable Gate Array (FGPA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or processors based on multi-core processor architecture.
- the general-purpose processor may be a microprocessor or any conventional processor.
- the foregoing processor may implement or execute the steps of each method disclosed in the embodiments of the present application.
- the software module may be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
- the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
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Abstract
Description
Claims (23)
- 一种信息映射方法,包括:将信道状态信息的至少一个信息域,映射为上行控制信息的至少一个字段;将所述至少一个字段分为第一部分字段以及第二部分字段;其中,所述第一部分字段用于承载所述信道状态信息的以下信息域中至少之一:指示预编码的秩的域,指示第一个传输块的宽带信道质量指示的域,指示第一个传输块的子带差分信道质量指示的域,指示第一矩阵中的被反馈的元素的数目的域;所述第二部分字段用于承载所述信道状态信息的以下信息域中至少之一:指示第二矩阵的信息的域,指示所述第一矩阵中最强系数位置的域,指示第二极化方向参考幅度的域,指示所述第一矩阵中的被反馈的元素的域;其中,所述指示所述第一矩阵中的被反馈的元素的域包括:指示所述第一矩阵中的被反馈的元素幅度的域,指示所述第一矩阵中的被反馈的元素相位的域;其中,所述第二矩阵中的元素用于指示所述第一矩阵中的被反馈的元素的位置;根据所述第一部分字段生成第一个比特序列,根据所述第二部分字段生成第二个比特序列。
- 根据权利要求1所述的方法,其中,所述将信道状态信息的至少一个信息域,映射为上行控制信息的至少一个字段,包括:将所述信道状态信息中的指示所述第二矩阵的信息的域映射为所述上行控制信息的第一字段;其中,所述第一字段中包含一维序列,所述一维序列由所述第二矩阵的二维矩阵元素映射得到。
- 根据权利要求1所述的方法,其中,所述将信道状态信息的至少一个信息域,映射为上行控制信息的至少一个字段,包括:将所述信道状态信息中的指示所述第一矩阵中最强系数位置的域映射为所述上行控制信息的第二字段;其中,所述第二字段中包含由N个比特组成的序列;其中,所述N为整数,且所述N与网络设备所配置的最大反馈元素的数量相关。
- 根据权利要求1所述的方法,其中,所述根据所述第二部分字段生成第二个比特序列,包括:将承载指示所述第一矩阵中最强系数位置的域的第二字段,排列在承载指示所述第二矩阵的信息的域的第一字段之后;其中,所述第二字段中包含由N个比特组成的序列;其中,所述N为整数,且所述N与网络设备所配置的最大反馈元素的数量相关。
- 根据权利要求1所述的方法,其中,所述根据所述第二部分字段生成第二个比特序列,包括:将所述第一矩阵中同一个系数对应的承载指示所述第一矩阵中的系数幅度的域的第三字段与承载指示所述第一矩阵中的系数相位的域的第四字段设置为相邻排列。
- 根据权利要求1所述的方法,其中,所述根据所述第二部分字段生成第二个比特序列,包括:将承载所述第一矩阵中第一极化方向所对应的被反馈的元素的第五字段,排列在承载所述第一矩阵的第二极化方向对应的被反馈的元素的第六字段之前;其中,所述第一极化方向为所述第一矩阵中最强系数所对应的极化方向,所述第二极化方向为与所述第一极化方向不同的极化方向。
- 根据权利要求1所述的方法,其中,所述根据所述第二部分字段生成第二个比特序列,包括:将承载指示所述第一矩阵中最强系数位置的域的第二字段,设置在承载指示所述第一矩阵中被反馈的元素的域的第七字段之前。
- 根据权利要求1所述的方法,其中,所述根据所述第二部分字段生成第二个比特序列,包括:基于承载指示所述第二矩阵信息的域的第一字段所指示的所述第一矩阵中的被反馈的元素的顺序,排列承载所述第一矩阵中的被反馈的元素的域的至少一个字段。
- 根据权利要求1所述的方法,其中,所述根据所述第二部分字段生成第二个比特序列,包括:将所述第二部分字段包括的字段依次相邻连接排列、且相邻字段之间无其它字段,组成所述第二个比特序列。
- 根据权利要求1所述的方法,其中,所述根据所述第一部分字段生成第一个比特序列,包括:将承载指示所述第一矩阵中的被反馈的元素的数目的域的字段排在所述第一部分字段的首位。
- 一种信息获取方法,包括:从上行控制信息中获取第一个比特序列以及第二个比特序列;从所述第一个比特序列中获取第一部分字段,从所述第二个比特序列中获取第二部分字段;基于所述第一部分字段以及所述第二部分字段,获取组成信道状态信息的至少一个信息域;其中,所述第一部分字段用于承载所述信道状态信息的以下信息域中至少之一:指示预编码的秩的域,指示第一个传输块的宽带信道质量指示的域,指示第一个传输块的子带差分信道质量指示的域,指示第一矩阵中的被反馈的元素的数目的域;所述第二部分字段用于承载所述信道状态信息的以下信息域中至少之一:指示第二矩阵的信息的域,指示所述第一矩阵中最强系数位置的域,指示第二极化方向参考幅度的域,指示所述第一矩阵中的被反馈的元素的域;其中,所述指示所述第一矩阵中的被反馈的元素的域包括:指示所述第一矩阵中的被反馈的元素幅度的域,指示所述第一矩阵中的被反馈的元素相位的域;其中,所述第二矩阵中的元素用于指示所述第一矩阵中的被反馈的元素的位置。
- 根据权利要求11所述的方法,其中,所述基于所述第一部分字段以及所述第二部分字段,获取组成信道状态信息的至少一个信息域,包括:基于所述第二部分字段中包含的第一字段中包含的一维序列,确定组成所述第二矩阵的二维矩阵元素。
- 根据权利要求11所述的方法,其中,所述基于所述第一部分字段以及所述第二部分字段,获取组成信道状态信息的至少一个信息域,包括:基于所述第二部分字段中的第二字段中包含的N个比特组成的序列,确定所述第一矩阵中最强系数位置;其中,所述N为整数,且所述N与最大反馈元素的数量相关。
- 根据权利要求11所述的方法,其中,所述基于所述第一部分字段以及所述第二部分字段,获取组成信道状态信息的至少一个信息域,包括:基于所述第二部分字段中的第一字段确定所述第二矩阵的信息;基于所述第二部分字段中排列在所述第一字段之后的第二字段,确定所述第一矩阵中最强系数位置;其中,所述第二字段中包含由N个比特组成的序列;所述N为整数,且所述N与最大反馈元素的数量相关。
- 根据权利要求11所述的方法,其中,所述基于所述第一部分字段以及 所述第二部分字段,获取组成信道状态信息的至少一个信息域,包括:基于所述第二部分字段中相邻的第三字段以及第四字段,确定所述第一矩阵中系数对应的系数幅度以及系数相位。
- 根据权利要求11所述的方法,其中,所述基于所述第一部分字段以及所述第二部分字段,获取组成信道状态信息的至少一个信息域,包括:基于所述第二部分字段中的第五字段确定所述第一矩阵中第一极化方向所对应的被反馈的元素;基于所述第二部分字段中排列在所述第五字段之后的第六字段,确定第二极化方向对应的被反馈的元素;其中,所述第一极化方向为所述第一矩阵中最强系数所对应的极化方向,所述第二极化方向为与所述第一极化方向不同的极化方向。
- 根据权利要求11所述的方法,其中,所述基于所述第一部分字段以及所述第二部分字段,获取组成信道状态信息的至少一个信息域,包括:基于第二字段确定所述第一矩阵中最强系数位置;基于排列在所述第二字段之后的第七字段确定所述第一矩阵中的被反馈的元素。
- 根据权利要求11所述的方法,其中,所述基于所述第一部分字段以及所述第二部分字段,获取组成信道状态信息的至少一个信息域,包括:基于第一字段确定所述第二矩阵,基于所述第二矩阵所指示的所述第一矩阵中的被反馈的元素的顺序,确定承载所述第一矩阵中的被反馈的元素的域的至少一个字段;基于所述至少一个字段确定所述第一矩阵中的被反馈的元素。
- 根据权利要求11所述的方法,其中,所述从所述第一个比特序列中获取第一部分字段,包括:从所述第一个比特序列中所述第一部分字段中的首位,获取承载指示所述第一矩阵中的被反馈的元素的数目的域的字段。
- 一种终端设备,包括:映射单元,设置为将信道状态信息的至少一个信息域,映射为上行控制信息的至少一个字段;处理单元,设置为将所述至少一个字段分为第一部分字段以及第二部分字段;根据所述第一部分字段生成第一个比特序列,根据所述第二部分字段生成 第二个比特序列;其中,所述第一部分字段用于承载所述信道状态信息的以下信息域中至少之一:指示预编码的秩的域,指示第一个传输块的宽带信道质量指示的域,指示第一个传输块的子带差分信道质量指示的域,指示第一矩阵中的被反馈的元素的数目的域;所述第二部分字段用于承载所述信道状态信息的以下信息域中至少之一:指示第二矩阵的信息的域,指示所述第一矩阵中最强系数位置的域,指示第二极化方向参考幅度的域,指示所述第一矩阵中的被反馈的元素的域;其中,所述指示所述第一矩阵中的被反馈的元素的域包括:指示所述第一矩阵中的被反馈的元素幅度的域,指示所述第一矩阵中的被反馈的元素相位的域;其中,所述第二矩阵中的元素用于指示所述第一矩阵中的被反馈的元素的位置。
- 一种网络设备,包括:信息提取单元,设置为从上行控制信息中获取第一个比特序列以及第二个比特序列;从所述第一个比特序列中获取第一部分字段,从所述第二个比特序列中获取第二部分字段;信息处理单元,设置为基于所述第一部分字段以及所述第二部分字段,获取组成信道状态信息的至少一个信息域;其中,所述第一部分字段用于承载所述信道状态信息的以下信息域中至少之一:指示预编码的秩的域,指示第一个传输块的宽带信道质量指示的域,指示第一个传输块的子带差分信道质量指示的域,指示第一矩阵中的被反馈的元素的数目的域;所述第二部分字段用于承载所述信道状态信息的以下信息域中至少之一:指示第二矩阵的信息的域,指示所述第一矩阵中最强系数位置的域,指示第二极化方向参考幅度的域,指示所述第一矩阵中的被反馈的元素的域;其中,所述指示所述第一矩阵中的被反馈的元素的域包括:指示所述第一矩阵中的被反馈的元素幅度的域,指示所述第一矩阵中的被反馈的元素相位的域;其中,所述第二矩阵中的元素用于指示所述第一矩阵中的被反馈的元素的位置。
- 一种终端设备,包括:处理器和设置为存储能够在所述处理器上运行的计算机程序的存储器,其中,所述存储器设置为存储计算机程序,所述处理器设置为调用并运行 所述存储器中存储的计算机程序,执行如权利要求1-10中任一项所述的信息映射方法。
- 一种网络设备,包括:处理器和设置为存储能够在所述处理器上运行的计算机程序的存储器,其中,所述存储器设置为存储计算机程序,所述处理器设置为调用并运行所述存储器中存储的计算机程序,执行如权利要求11-19中任一项所述的信息获取方法。
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