CN116349154A - Indication method, determination method and device thereof - Google Patents
Indication method, determination method and device thereof Download PDFInfo
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- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
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Abstract
The embodiment of the disclosure discloses an indication method, a determination method and a device thereof, wherein the indication method comprises the following steps: the network equipment determines the code word selected by the network equipment; the network equipment determines the first antenna port group number corresponding to the selected code word; and the network equipment sends indication information to the terminal equipment according to the first antenna port group number and the selected code word, wherein the indication information indicates the code word selected by the network equipment and the first antenna port group number corresponding to the code word. By implementing the embodiment of the disclosure, the indication scheme of the code word selected by the network equipment and the antenna port group number corresponding to the code word is provided, and the indication problem of the antenna port group number and the code word is solved.
Description
Technical Field
The disclosure relates to the field of communication technologies, and in particular, to an indication method, a determination method and a device thereof.
Background
In the MIMO (Multiple-Input Multiple-Output) uplink 8-port transmission enhancement study of version R18, relevant discussion is made on the antenna port group number, the full-coherent codeword design, the partial-coherent codeword design, and the TPMI (Transmit Precoding Matrix Indicator ) design. Firstly, the number of antenna port groups of the terminal equipment is defined, namely, the number of antenna port groups of the terminal equipment is defined as Ng, the antenna ports in each antenna port group carry out full-coherent transmission, and the antenna ports among different antenna port groups carry out incoherent transmission. When the terminal device is a full coherence terminal device, ng=1; ng=2 or 4 when the terminal device is a partially coherent terminal device; ng=8 when the terminal device is an incoherent terminal device. In the full-coherent codeword design, two full-coherent codeword designs are proposed, wherein scheme 1 constructs a full-coherent codeword based on the R15 DL Type I codebook and scheme 2 constructs a full-coherent codeword based on the R15 UL 4Tx/2Tx codebook. The partially coherent codeword design employs constructing a partially coherent codeword based on an R15 UL 4Tx/2Tx codebook.
In the 8-port codebook design of R18, since codewords of different coherent types use different design criteria, a new codeword and an indication scheme of the number of antenna port groups need to be considered. However, there is currently no effective means for indicating the codeword and the number of antenna port groups.
Disclosure of Invention
The embodiment of the disclosure provides an indication method, a determination method and a device thereof, which can solve the indication problem of the antenna port group number and the code word by providing an indication scheme of the code word selected by network equipment and the antenna port group number corresponding to the code word.
In a first aspect, embodiments of the present disclosure provide an indication method, the method performed by a network device, the method comprising:
determining a codeword selected by the network device;
determining the number of first antenna port groups corresponding to the selected code word;
and sending indication information to terminal equipment according to the first antenna port group number and the selected code word, wherein the indication information indicates the code word selected by the network equipment and the first antenna port group number corresponding to the code word.
In the technical scheme, the indication scheme of the code word selected by the network equipment and the antenna port group number corresponding to the code word is provided, so that the network equipment can send indication information to the terminal equipment to indicate the code word selected by the network equipment and the antenna port group number corresponding to the code word, and the indication problem of the antenna port group number and the code word is solved.
In one implementation manner, the determining the number of the first antenna port groups corresponding to the selected codeword includes:
receiving the number of the second antenna port groups of the terminal equipment, which is sent by the terminal equipment, and the number of the antenna ports contained in each antenna port group;
determining a configurable codeword of the terminal device according to the second antenna port group number of the terminal device;
and determining the number of the first antenna port group corresponding to the code word selected by the network equipment according to the configurable code word of the terminal equipment.
In a possible implementation manner, the determining the configurable codeword of the terminal device according to the second antenna port group number of the terminal device includes:
and under the condition that the number of the second antenna port group is 1, determining that the configurable code word of the terminal equipment is the code word with the first antenna port group number of a first value, wherein the first value is any one of the following values: 1,2,4 and 8; or,
and under the condition that the number of the second antenna port group is 2, determining that the configurable code word of the terminal equipment is the code word with the number of the first antenna port group being a second numerical value, wherein the second numerical value is any one of the following numerical values: 2,4 and 8; or,
And under the condition that the number of the second antenna port group is 4, determining that the configurable code word of the terminal equipment is a code word with the number of the first antenna port group being a third value, wherein the third value is any one of the following values: 4 and 8; or,
and under the condition that the number of the second antenna port groups is 8, determining that the configurable code word of the terminal equipment is the code word with the number of the first antenna port groups being 8.
In a possible implementation manner, the determining the configurable codeword of the terminal device according to the second antenna port group number of the terminal device includes:
under the condition that the number of the second antenna port groups is 1, determining that the configurable code word of the terminal equipment is the code word with the number of the first antenna port groups being 1; or,
under the condition that the number of the second antenna port groups is 2, determining that the configurable code word of the terminal equipment is the code word with the number of the first antenna port groups being 2; or,
determining that the configurable code word of the terminal equipment is the code word with the number of the first antenna port groups being 4 under the condition that the number of the second antenna port groups is 4; or,
and under the condition that the number of the second antenna port groups is 8, determining that the configurable code word of the terminal equipment is the code word with the number of the first antenna port groups being 8.
In one implementation manner, the indication information includes a first indication field and a second indication field, where the first indication field indicates an index value corresponding to a codeword selected by the network device, and the second indication field indicates the number of antenna port groups of the codeword selected by the network device.
In one possible implementation, the length of the second indication field is a fixed bit length or a dynamic bit length.
In a possible implementation manner, the sending, according to the first antenna port group number and the selected codeword, indication information to a terminal device includes:
determining a first Transmission Precoding Matrix Indicator (TPMI) codebook table corresponding to the first antenna port group number if the first antenna port group number is 1; wherein, the first TPMI codebook table is a TPMI codebook table of a full coherent codeword;
determining an index value corresponding to the selected codeword from the first TPMI codebook table;
determining the first indication field according to an index value corresponding to the selected codeword;
determining the second indication domain according to the first antenna port group number;
and sending the indication information comprising the first indication domain and the second indication domain to the terminal equipment.
In a possible implementation manner, the sending, according to the first antenna port group number and the selected codeword, indication information to a terminal device includes:
determining a second TPMI codebook table corresponding to the first antenna port group number if the first antenna port group number is 2; the second TPMI codebook table includes all 4 antenna port full-coherent codewords with Rank from 1 to 4 and a full-zero matrix;
determining an index value corresponding to the selected codeword from the second TPMI codebook table;
determining the first indication field according to an index value corresponding to the selected codeword; the first indication domain comprises a first indication subdomain and a second indication subdomain, wherein the first indication subdomain indicates a codeword corresponding to a first antenna port group, and the second indication subdomain indicates a codeword corresponding to a second antenna port group;
determining the second indication domain according to the first antenna port group number;
and sending the indication information comprising the first indication domain and the second indication domain to the terminal equipment.
In a possible implementation manner, the sending, according to the first antenna port group number and the selected codeword, indication information to a terminal device includes:
Determining a third TPMI codebook table corresponding to the first antenna port group number if the first antenna port group number is 4; the third TPMI codebook table includes all 2 antenna ports full-coherent codewords from 1 to 2 and a full-zero matrix;
determining an index value corresponding to the selected codeword from the third TPMI codebook table;
determining the first indication field according to an index value corresponding to the selected codeword; the first indication domain comprises a first indication subdomain, a second indication subdomain, a third indication subdomain and a fourth indication subdomain, wherein the first indication subdomain indicates codewords corresponding to a first antenna port group, the second indication subdomain indicates codewords corresponding to a second antenna port group, the third indication subdomain indicates codewords corresponding to a third antenna port group, and the fourth indication subdomain indicates codewords corresponding to a fourth antenna port group;
determining the second indication domain according to the first antenna port group number;
and sending the indication information comprising the first indication domain and the second indication domain to the terminal equipment.
In a possible implementation manner, the sending, according to the first antenna port group number and the selected codeword, indication information to a terminal device includes:
Determining a fourth TPMI codebook table corresponding to the first antenna port group number if the first antenna port group number is 8; wherein the fourth TPMI codebook table is a TPMI codebook table of a non-coherent codeword;
determining an index value corresponding to the selected codeword from the fourth TPMI codebook table;
determining the first indication field according to an index value corresponding to the selected codeword;
determining the second indication domain according to the first antenna port group number;
and sending the indication information comprising the first indication domain and the second indication domain to the terminal equipment.
In one implementation manner, the sending, according to the first antenna port group number and the selected codeword, indication information to a terminal device includes:
determining a beam index and a co-phase coefficient index under the condition that the first antenna port group number is 1;
determining a first indication field according to the beam index and the co-phasing coefficient index;
determining a second indication domain according to the first antenna port group number;
and sending the indication information comprising the first indication domain and the second indication domain to the terminal equipment.
In one implementation, the indication information includes a joint indication field, where the joint indication field jointly indicates an index value corresponding to the codeword selected by the network device and the number of antenna port groups of the codeword selected by the network device.
In a possible implementation manner, the sending, according to the first antenna port group number and the selected codeword, indication information to a terminal device includes:
determining a fifth TPMI codebook table corresponding to the first antenna port group number; wherein, the fifth TPMI codebook table includes all codewords from Rank 1 to 8;
determining an index value corresponding to the selected codeword from the fifth TPMI codebook table;
determining a corresponding bit domain mapping index from a joint indication domain table according to the index value corresponding to the selected codeword and the first antenna port group number;
determining the joint indication domain according to the bit domain mapping index;
and sending the indication information comprising the joint indication domain to the terminal equipment.
In a second aspect, an embodiment of the present disclosure provides a determining method, which is performed by a terminal device, the method including:
receiving indication information sent by network equipment, wherein the indication information indicates a codeword selected by the network equipment and a first antenna port group number corresponding to the codeword;
and determining the code word selected by the network equipment and the first antenna port group number corresponding to the code word according to the indication information.
In the technical scheme, the indication information is sent to the terminal equipment through the network equipment, so that the terminal equipment determines the code word selected by the network equipment and the antenna port group number corresponding to the code word according to the indication information, and the indication problem of the antenna port group number and the code word is solved.
In one implementation, the method further comprises:
transmitting the number of the second antenna port group of the terminal device to the network device, and the serial number of the antenna port contained in each antenna port group; the number of the second antenna port groups and the number of the antenna ports included in each antenna port group are used for indicating the network equipment to determine the number of the first antenna port groups corresponding to the code word selected by the network equipment according to the configurable code word of the terminal equipment.
In a possible implementation manner, the indication information includes a first indication field and a second indication field, where the first indication field indicates an index value corresponding to a codeword selected by the network device, and the second indication field indicates the number of antenna port groups of the codeword selected by the network device.
In one possible implementation, the length of the second indication field is a fixed bit length or a dynamic bit length.
In a possible implementation manner, the determining, according to the indication information, the codeword selected by the network device and the first antenna port group number corresponding to the codeword includes:
determining an index value corresponding to the codeword selected by the network device according to a first indication field in the indication information;
determining the number of the first antenna port groups corresponding to the code word according to the second indication domain in the indication information;
and determining the code word selected by the network equipment according to the index value corresponding to the code word selected by the network equipment and the first antenna port group number corresponding to the code word.
In one possible implementation manner, the determining the codeword selected by the network device according to the index value corresponding to the codeword selected by the network device and the first antenna port group number corresponding to the codeword includes:
determining a first Transmission Precoding Matrix Indicator (TPMI) codebook table corresponding to the first antenna port group number if the first antenna port group number is 1; wherein, the first TPMI codebook table is a TPMI codebook table of a full coherent codeword;
and determining the code word selected by the network equipment from the first TPMI codebook table according to the index value corresponding to the code word selected by the network equipment.
In one possible implementation manner, the determining the codeword selected by the network device according to the index value corresponding to the codeword selected by the network device and the first antenna port group number corresponding to the codeword includes:
determining a second TPMI codebook table corresponding to the first antenna port group number if the first antenna port group number is 2; the second TPMI codebook table includes all 4 antenna port full-coherent codewords with Rank from 1 to 4 and a full-zero matrix;
and determining the code word selected by the network equipment from the second TPMI codebook table according to the index value corresponding to the code word selected by the network equipment.
In one possible implementation manner, the determining the codeword selected by the network device according to the index value corresponding to the codeword selected by the network device and the first antenna port group number corresponding to the codeword includes:
determining a third TPMI codebook table corresponding to the first antenna port group number if the first antenna port group number is 4; the third TPMI codebook table includes all 2 antenna ports full-coherent codewords from 1 to 2 and a full-zero matrix;
and determining the code word selected by the network equipment from the third TPMI codebook table according to the index value corresponding to the code word selected by the network equipment.
In one possible implementation manner, the determining the codeword selected by the network device according to the index value corresponding to the codeword selected by the network device and the first antenna port group number corresponding to the codeword includes:
determining a fourth TPMI codebook table corresponding to the first antenna port group number if the first antenna port group number is 8; wherein the fourth TPMI codebook table is a TPMI codebook table of a non-coherent codeword;
and determining the code word selected by the network equipment from the fourth TPMI codebook table according to the index value corresponding to the code word selected by the network equipment.
In one implementation manner, the determining, according to the indication information, the codeword selected by the network device and the first antenna port group number corresponding to the codeword includes:
under the condition that the number of the first antenna port groups is 1, determining a beam index and a co-phase coefficient index according to a first indication domain in the indication information;
determining a codeword selected by the network device according to the beam index and the co-phase coefficient index;
and determining the number of the first antenna port groups corresponding to the code words according to the second indication field in the indication information.
In one implementation, the indication information includes a joint indication field, where the joint indication field jointly indicates an index value corresponding to the codeword selected by the network device and the number of antenna port groups of the codeword selected by the network device.
In a possible implementation manner, the determining, according to the indication information, the codeword selected by the network device and the first antenna port group number corresponding to the codeword includes:
according to the joint indication domain in the indication information, determining an index value corresponding to a code word selected by the network equipment and a first antenna port group number corresponding to the code word from a joint indication domain table;
determining a fifth TPMI codebook table corresponding to the first antenna port group number; wherein, the fifth TPMI codebook table includes all codewords from Rank 1 to 8;
and determining the code word selected by the network equipment from the fifth TPMI codebook table according to the index value corresponding to the code word selected by the network equipment.
In a third aspect, an embodiment of the present disclosure provides a communications apparatus that performs some or all of the functions of the network device in the method described in the first aspect, for example, the functions of the communications apparatus may perform some or all of the functions of the embodiments of the present disclosure, or may perform the functions of any of the embodiments of the present disclosure alone. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the functions described above.
In one implementation, the communication device may include a transceiver module and a processing module in a structure configured to support the communication device to perform the corresponding functions in the method. The transceiver module is used for supporting communication between the communication device and other equipment. The communication device may further comprise a memory module for coupling with the transceiver module and the processing module, which holds the necessary computer programs and data of the communication device.
In one implementation, the processing module is configured to determine a codeword selected by a network device; the processing module is further configured to determine a first antenna port group number corresponding to the selected codeword; and the receiving and transmitting module is used for transmitting indication information to the terminal equipment according to the first antenna port group number and the selected code word, wherein the indication information indicates the code word selected by the network equipment and the first antenna port group number corresponding to the code word.
In a possible implementation manner, the transceiver module is further configured to receive a second antenna port group number of the terminal device and a number of an antenna port included in each antenna port group, where the second antenna port group number is sent by the terminal device; the processing module is specifically configured to: determining a configurable codeword of the terminal device according to the second antenna port group number of the terminal device; and determining the number of the first antenna port group corresponding to the code word selected by the network equipment according to the configurable code word of the terminal equipment.
In one possible implementation manner, the processing module is specifically configured to: and under the condition that the number of the second antenna port group is 1, determining that the configurable code word of the terminal equipment is the code word with the first antenna port group number of a first value, wherein the first value is any one of the following values: 1,2,4 and 8; or, in the case that the second antenna port group number is 2, determining that the configurable codeword of the terminal device is a codeword in which the first antenna port group number is a second value, where the second value is any one of the following values: 2,4 and 8; or, in the case that the second antenna port group number is 4, determining that the configurable codeword of the terminal device is a codeword of which the first antenna port group number is a third value, where the third value is any one of the following values: 4 and 8; or in the case that the second antenna port group number is 8, determining that the configurable codeword of the terminal equipment is the codeword of which the first antenna port group number is 8.
In one possible implementation manner, the processing module is specifically configured to: under the condition that the number of the second antenna port groups is 1, determining that the configurable code word of the terminal equipment is the code word with the number of the first antenna port groups being 1; or determining that the configurable code word of the terminal equipment is the code word with the number of the first antenna port groups being 2 under the condition that the number of the second antenna port groups is 2; or determining that the configurable code word of the terminal equipment is the code word with the number of the first antenna port groups being 4 under the condition that the number of the second antenna port groups is 4; or in the case that the second antenna port group number is 8, determining that the configurable codeword of the terminal equipment is the codeword of which the first antenna port group number is 8.
In one implementation manner, the indication information includes a first indication field and a second indication field, where the first indication field indicates an index value corresponding to a codeword selected by the network device, and the second indication field indicates the number of antenna port groups of the codeword selected by the network device.
In one possible implementation, the length of the second indication field is a fixed bit length or a dynamic bit length.
In one possible implementation, the processing module is further configured to: determining a first Transmission Precoding Matrix Indicator (TPMI) codebook table corresponding to the first antenna port group number if the first antenna port group number is 1; wherein, the first TPMI codebook table is a TPMI codebook table of a full coherent codeword; determining an index value corresponding to the selected codeword from the first TPMI codebook table; determining the first indication field according to an index value corresponding to the selected codeword; and determining the second indication domain according to the first antenna port group number. The transceiver module is specifically configured to: and sending the indication information comprising the first indication domain and the second indication domain to the terminal equipment.
In one possible implementation, the processing module is further configured to: determining a second TPMI codebook table corresponding to the first antenna port group number if the first antenna port group number is 2; the second TPMI codebook table includes all 4 antenna port full-coherent codewords with Rank from 1 to 4 and a full-zero matrix; determining an index value corresponding to the selected codeword from the second TPMI codebook table; determining the first indication field according to an index value corresponding to the selected codeword; the first indication domain comprises a first indication subdomain and a second indication subdomain, wherein the first indication subdomain indicates a codeword corresponding to a first antenna port group, and the second indication subdomain indicates a codeword corresponding to a second antenna port group; and determining the second indication domain according to the first antenna port group number. The transceiver module is specifically configured to: and sending the indication information comprising the first indication domain and the second indication domain to the terminal equipment.
In one possible implementation, the processing module is further configured to: determining a third TPMI codebook table corresponding to the first antenna port group number if the first antenna port group number is 4; the third TPMI codebook table includes all 2 antenna ports full-coherent codewords from 1 to 2 and a full-zero matrix; determining an index value corresponding to the selected codeword from the third TPMI codebook table; determining the first indication field according to an index value corresponding to the selected codeword; the first indication domain comprises a first indication subdomain, a second indication subdomain, a third indication subdomain and a fourth indication subdomain, wherein the first indication subdomain indicates codewords corresponding to a first antenna port group, the second indication subdomain indicates codewords corresponding to a second antenna port group, the third indication subdomain indicates codewords corresponding to a third antenna port group, and the fourth indication subdomain indicates codewords corresponding to a fourth antenna port group; and determining the second indication domain according to the first antenna port group number. The transceiver module is specifically configured to: and sending the indication information comprising the first indication domain and the second indication domain to the terminal equipment.
In one possible implementation, the processing module is further configured to: determining a fourth TPMI codebook table corresponding to the first antenna port group number if the first antenna port group number is 8; wherein the fourth TPMI codebook table is a TPMI codebook table of a non-coherent codeword; determining an index value corresponding to the selected codeword from the fourth TPMI codebook table; determining the first indication field according to an index value corresponding to the selected codeword; and determining the second indication domain according to the first antenna port group number. The transceiver module is specifically configured to: and sending the indication information comprising the first indication domain and the second indication domain to the terminal equipment.
In one implementation, the processing module is further configured to: determining a beam index and a co-phase coefficient index under the condition that the first antenna port group number is 1; determining a first indication field according to the beam index and the co-phasing coefficient index; and determining a second indication domain according to the first antenna port group number. The transceiver module is specifically configured to: and sending the indication information comprising the first indication domain and the second indication domain to the terminal equipment.
In one implementation, the indication information includes a joint indication field, where the joint indication field jointly indicates an index value corresponding to the codeword selected by the network device and the number of antenna port groups of the codeword selected by the network device.
In one possible implementation, the processing module is further configured to: determining a fifth TPMI codebook table corresponding to the first antenna port group number; wherein, the fifth TPMI codebook table includes all codewords from Rank 1 to 8; determining an index value corresponding to the selected codeword from the fifth TPMI codebook table; determining a corresponding bit domain mapping index from a joint indication domain table according to the index value corresponding to the selected codeword and the first antenna port group number; and determining the joint indication domain according to the bit domain mapping index. The transceiver module is further configured to: and sending the indication information comprising the joint indication domain to the terminal equipment.
As an example, the processing module may be a processor, the transceiver module may be a transceiver or a communication interface, and the storage module may be a memory.
In a fourth aspect, an embodiment of the present disclosure provides another communication apparatus having a function of implementing part or all of the terminal device in the method example described in the second aspect, for example, a function of the communication apparatus may be provided with a function in part or all of the embodiments of the present disclosure, or may be provided with a function of implementing any one of the embodiments of the present disclosure separately. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the functions described above.
In one implementation, the communication device may include a transceiver module and a processing module in a structure configured to support the communication device to perform the corresponding functions of the method. The transceiver module is used for supporting communication between the communication device and other equipment. The communication device may further comprise a memory module for coupling with the transceiver module and the processing module, which holds the necessary computer programs and data of the communication device.
In one implementation manner, the transceiver module is configured to receive indication information sent by a network device, where the indication information indicates a codeword selected by the network device and a first antenna port group number corresponding to the codeword; and the processing module is used for determining the code word selected by the network equipment and the first antenna port group number corresponding to the code word according to the indication information.
In one implementation, the transceiver module is further configured to: transmitting the number of the second antenna port group of the terminal device to the network device, and the serial number of the antenna port contained in each antenna port group; the number of the second antenna port groups and the number of the antenna ports included in each antenna port group are used for indicating the network equipment to determine the number of the first antenna port groups corresponding to the code word selected by the network equipment according to the configurable code word of the terminal equipment.
In a possible implementation manner, the indication information includes a first indication field and a second indication field, where the first indication field indicates an index value corresponding to a codeword selected by the network device, and the second indication field indicates the number of antenna port groups of the codeword selected by the network device.
In one possible implementation, the length of the second indication field is a fixed bit length or a dynamic bit length.
In one possible implementation manner, the processing module is specifically configured to: determining an index value corresponding to the codeword selected by the network device according to a first indication field in the indication information; determining the number of the first antenna port groups corresponding to the code word according to the second indication domain in the indication information; and determining the code word selected by the network equipment according to the index value corresponding to the code word selected by the network equipment and the first antenna port group number corresponding to the code word.
In one possible implementation manner, the processing module is specifically configured to: determining a first Transmission Precoding Matrix Indicator (TPMI) codebook table corresponding to the first antenna port group number if the first antenna port group number is 1; wherein, the first TPMI codebook table is a TPMI codebook table of a full coherent codeword; and determining the code word selected by the network equipment from the first TPMI codebook table according to the index value corresponding to the code word selected by the network equipment.
In one possible implementation manner, the processing module is specifically configured to: determining a second TPMI codebook table corresponding to the first antenna port group number if the first antenna port group number is 2; the second TPMI codebook table includes all 4 antenna port full-coherent codewords with Rank from 1 to 4 and a full-zero matrix; and determining the code word selected by the network equipment from the second TPMI codebook table according to the index value corresponding to the code word selected by the network equipment.
In one possible implementation manner, the processing module is specifically configured to: determining a third TPMI codebook table corresponding to the first antenna port group number if the first antenna port group number is 4; the third TPMI codebook table includes all 2 antenna ports full-coherent codewords from 1 to 2 and a full-zero matrix; and determining the code word selected by the network equipment from the third TPMI codebook table according to the index value corresponding to the code word selected by the network equipment.
In one possible implementation manner, the processing module is specifically configured to: determining a fourth TPMI codebook table corresponding to the first antenna port group number if the first antenna port group number is 8; wherein the fourth TPMI codebook table is a TPMI codebook table of a non-coherent codeword; and determining the code word selected by the network equipment from the fourth TPMI codebook table according to the index value corresponding to the code word selected by the network equipment.
In one implementation, the processing module is specifically configured to: under the condition that the number of the first antenna port groups is 1, determining a beam index and a co-phase coefficient index according to a first indication domain in the indication information; determining a codeword selected by the network device according to the beam index and the co-phase coefficient index; and determining the number of the first antenna port groups corresponding to the code words according to the second indication field in the indication information.
In one implementation, the indication information includes a joint indication field, where the joint indication field jointly indicates an index value corresponding to the codeword selected by the network device and the number of antenna port groups of the codeword selected by the network device.
In one possible implementation manner, the processing module is specifically configured to: according to the joint indication domain in the indication information, determining an index value corresponding to a code word selected by the network equipment and a first antenna port group number corresponding to the code word from a joint indication domain table; determining a fifth TPMI codebook table corresponding to the first antenna port group number; wherein, the fifth TPMI codebook table includes all codewords from Rank 1 to 8; and determining the code word selected by the network equipment from the fifth TPMI codebook table according to the index value corresponding to the code word selected by the network equipment.
In a fifth aspect, embodiments of the present disclosure provide a communication device comprising a processor, which when invoking a computer program in memory, performs the method of the first aspect described above.
In a sixth aspect, embodiments of the present disclosure provide a communication device comprising a processor that, when invoking a computer program in memory, performs the method of the second aspect described above.
In a seventh aspect, embodiments of the present disclosure provide a communication apparatus comprising a processor and a memory, the memory having a computer program stored therein; the processor executes the computer program stored in the memory to cause the communication device to perform the method of the first aspect described above.
In an eighth aspect, embodiments of the present disclosure provide a communication apparatus comprising a processor and a memory, the memory having a computer program stored therein; the processor executes the computer program stored in the memory to cause the communication device to perform the method of the second aspect described above.
In a ninth aspect, embodiments of the present disclosure provide a communications apparatus comprising a processor and interface circuitry for receiving code instructions and transmitting to the processor, the processor being configured to execute the code instructions to cause the apparatus to perform the method of the first aspect described above.
In a tenth aspect, embodiments of the present disclosure provide a communications device comprising a processor and interface circuitry for receiving code instructions and transmitting to the processor, the processor being configured to execute the code instructions to cause the device to perform the method of the second aspect described above.
In an eleventh aspect, an embodiment of the disclosure provides a communication system, where the system includes a communication device according to the third aspect and a communication device according to the fourth aspect, or where the system includes a communication device according to the fifth aspect and a communication device according to the sixth aspect, or where the system includes a communication device according to the seventh aspect and a communication device according to the eighth aspect, or where the system includes a communication device according to the ninth aspect and a communication device according to the tenth aspect.
In a twelfth aspect, embodiments of the present disclosure provide a computer readable storage medium storing instructions for use by a network device as described above, which when executed, cause the network device to perform the method of the first aspect described above.
In a thirteenth aspect, an embodiment of the disclosure provides a readable storage medium storing instructions for use by the terminal device, where the instructions, when executed, cause the terminal device to perform the method of the second aspect.
In a fourteenth aspect, the present disclosure also provides a computer program product comprising a computer program which, when run on a computer, causes the computer to perform the method of the first aspect described above.
In a fifteenth aspect, the present disclosure also provides a computer program product comprising a computer program which, when run on a computer, causes the computer to perform the method of the second aspect described above.
In a sixteenth aspect, the present disclosure provides a chip system comprising at least one processor and an interface for supporting a network device to implement the functionality referred to in the first aspect, e.g. to determine or process at least one of data and information referred to in the above-described method. In one possible design, the chip system further includes a memory to hold computer programs and data necessary for the network device. The chip system can be composed of chips, and can also comprise chips and other discrete devices.
In a seventeenth aspect, the present disclosure provides a chip system comprising at least one processor and an interface for supporting a terminal device to implement the functionality referred to in the second aspect, e.g. to determine or process at least one of data and information referred to in the above-mentioned method. In one possible design, the chip system further includes a memory for holding computer programs and data necessary for the terminal device. The chip system can be composed of chips, and can also comprise chips and other discrete devices.
In an eighteenth aspect, the present disclosure provides a computer program which, when run on a computer, causes the computer to perform the method of the first aspect described above.
In a nineteenth aspect, the present disclosure provides a computer program which, when run on a computer, causes the computer to perform the method of the second aspect described above.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the background of the present disclosure, the following description will explain the drawings that are required to be used in the embodiments or the background of the present disclosure.
Fig. 1 is a schematic architecture diagram of a communication system provided in an embodiment of the present disclosure;
FIG. 2 is a flow chart of an indication method provided by an embodiment of the present disclosure;
FIG. 3 is a flow chart of another indication method provided by an embodiment of the present disclosure;
FIG. 4 is a flow chart of another indication method provided by an embodiment of the present disclosure;
FIG. 5 is a flow chart of yet another indication method provided by an embodiment of the present disclosure;
FIG. 6 is a flow chart of yet another indication method provided by an embodiment of the present disclosure;
FIG. 7 is an exemplary diagram of a first indication field in indication information provided by an embodiment of the present disclosure;
FIG. 8 is a flow chart of another indication method provided by an embodiment of the present disclosure;
FIG. 9 is a flow chart of yet another method of indication provided by an embodiment of the present disclosure;
FIG. 10 is a flow chart of a determination method provided by an embodiment of the present disclosure;
fig. 11 is a schematic structural diagram of a communication device according to an embodiment of the present disclosure;
fig. 12 is a schematic structural diagram of another communication device provided in an embodiment of the present disclosure;
fig. 13 is a schematic structural diagram of a chip according to an embodiment of the disclosure.
Detailed Description
Embodiments of the present disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present disclosure and are not to be construed as limiting the present disclosure. Wherein, in the description of the present disclosure, "/" means or is meant unless otherwise indicated, e.g., a/B may represent a or B; "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone.
The terminology used in the embodiments of the disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the disclosure. As used in this disclosure of embodiments and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that although the terms first, second, third, etc. may be used in embodiments of the present disclosure to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, the first information may also be referred to as second information, and similarly, the second information may also be referred to as first information, without departing from the scope of embodiments of the present disclosure. The words "if" and "if" as used herein may be interpreted as "at … …" or "at … …" or "in response to a determination", depending on the context.
Embodiments of the present disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the like or similar elements throughout. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present disclosure and are not to be construed as limiting the present disclosure.
In the MIMO (Multiple-Input Multiple-Output) uplink 8-port transmission enhancement study of version R18, the antenna port group number, the full-coherent codeword design, the partial-coherent codeword design, and the TPMI (Transmit Precoding Matrix Indicator ) design are discussed in relation. Firstly, the number of antenna port groups of the terminal equipment is defined, namely, the number of antenna port groups of the terminal equipment is defined as Ng, the antenna ports in each antenna port group carry out full-coherent transmission, and the antenna ports among different antenna port groups carry out incoherent transmission. When the terminal device is a full coherence terminal device, ng=1; ng=2 or 4 when the terminal device is a partially coherent terminal device; ng=8 when the terminal device is an incoherent terminal device. In the design of the full-coherent codeword, there are two designs of the full-coherent codeword: scheme 1, constructing a full coherent codeword based on an R15 DL Type I codebook; scheme 2, full coherent codeword is constructed based on the R15 UL 4Tx/2Tx codebook. Wherein in general scheme 1 performs better than scheme 2. When the codebook performance simulation evaluation is carried out, the random phase error is required to be considered, and as the codebook performance simulation evaluation result is not converged when the codeword performance comparison under the condition of the random phase error is considered, the full-coherence codeword can be constructed by adopting the following implementation modes: generating full coherent codewords using scheme 1 unless the total codeword number M is 2 N Otherwise add 2 in codebook N -a full coherent codeword generated by scheme 2. The partially coherent codeword design employs constructing a partially coherent codeword based on an R15 UL 4Tx/2Tx codebook. See Proposal, proposal, defining two basic design principles of partially coherent codewords with Ng=2, one possibleThe embodiment is to construct the partially coherent codeword using scheme a as follows.
The codeword indication scheme in the existing protocol is as follows, taking a 4-port CP-OFDM waveform as an example. Table 6.3.1.5-3, table6.3.1.5-5, table 6.3.1.5-6, table 6.3.1.5-7 in TS 38.211 give codewords with layers 1-4, respectively, and each Table contains all codewords of the layers that are fully coherent, partially coherent and incoherent. A specific precoding matrix and layer number indication scheme is given in TS 38.212, i.e. indicated by the precoding matrix and layer number (Precoding information and number of layers) field, where the precoding matrix and layer number are joint indications. For example, table 7.3.1.1.2-2 gives the configurable codeword and indication scheme for a 4-port maximum 4-layer fully coherent UE (the configurable codeword for a fully coherent UE may be a fully coherent codeword, a partially coherent codeword and a noncoherent codeword). For example, when the index indicated by the bit field is 55, the index corresponds to "2 layers:tpmi=21", that is, represents a codeword 
However, in the 8-port codebook design of R18, since codewords of different coherent types employ different design criteria, a new codeword indication scheme is considered. In the RANs 1#110b conference, agreement is given in which the instruction problem of antenna port group and TPMI is taken into consideration. In the RANs 1#111 conference, a Proposal (Proposal) is given in which two indication methods of antenna port group and TPMI are considered, respectively, independent indication and joint indication. Accordingly, the present disclosure primarily contemplates independent/combined antenna port groups and TPMI indication schemes.
Therefore, the embodiment of the disclosure provides an indicating method, a determining method and a device thereof, which can send indicating information to a terminal device through a network device to indicate a codeword selected by the network device and the number of antenna port groups corresponding to the codeword, thereby solving the indicating problems of the number of antenna port groups and the codeword.
In order to better understand an indication method, a determination method and a device thereof disclosed in the embodiments of the present disclosure, a communication system to which the embodiments of the present disclosure are applicable is first described below.
Referring to fig. 1, fig. 1 is a schematic architecture diagram of a communication system according to an embodiment of the disclosure. The communication system may include, but is not limited to, one network device and one terminal device, and the number and form of devices shown in fig. 1 are only for example and not limiting the embodiments of the present disclosure, and may include two or more network devices and two or more terminal devices in practical applications. The communication system shown in fig. 1 is exemplified as including a network device 101 and a terminal device 102.
It should be noted that the technical solution of the embodiment of the present disclosure may be applied to various communication systems. For example: a long term evolution (long term evolution, LTE) system, a fifth generation (5th generation,5G) mobile communication system, a 5G New Radio (NR) system, or other future new mobile communication systems, etc.
The network device 101 in the embodiment of the present disclosure is an entity for transmitting or receiving a signal on the network side. For example, the network device 101 may be an evolved NodeB (eNB), a transmission point (transmission reception point, TRP), a next generation NodeB (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a wireless fidelity (wireless fidelity, wiFi) system, etc. The embodiments of the present disclosure do not limit the specific technology and specific device configuration employed by the network device. The network device provided by the embodiments of the present disclosure may be composed of a Centralized Unit (CU) and a Distributed Unit (DU), where the CU may also be referred to as a control unit (control unit), the structure of the CU-DU may be used to split the protocol layers of the network device, such as a base station, where functions of part of the protocol layers are placed in the CU for centralized control, and functions of the rest part or all of the protocol layers are distributed in the DU, where the CU centrally controls the DU.
The terminal device 102 in the embodiments of the present disclosure is an entity on the user side for receiving or transmitting signals, such as a mobile phone. The terminal device may also be referred to as a terminal device (terminal), a User Equipment (UE), a Mobile Station (MS), a mobile terminal device (MT), etc. The terminal device may be an automobile with a communication function, a smart car, a mobile phone (mobile phone), a wearable device, a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in unmanned-driving (self-driving), a wireless terminal device in teleoperation (remote medical surgery), a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation safety (transportation safety), a wireless terminal device in smart city (smart city), a wireless terminal device in smart home (smart home), or the like. The embodiment of the present disclosure does not limit the specific technology and the specific device configuration adopted by the terminal device.
It may be understood that, the communication system described in the embodiments of the present disclosure is for more clearly describing the technical solutions of the embodiments of the present disclosure, and is not limited to the technical solutions provided in the embodiments of the present disclosure, and those skilled in the art can know that, with the evolution of the system architecture and the appearance of new service scenarios, the technical solutions provided in the embodiments of the present disclosure are equally applicable to similar technical problems.
The indication method, the determination method and the device provided by the disclosure are described in detail below with reference to the accompanying drawings.
Referring to fig. 2, fig. 2 is a flow chart illustrating an indication method according to an embodiment of the disclosure. It should be noted that the method is performed by a network device. As shown in fig. 2, the method may include, but is not limited to, the following steps.
In step 201, a codeword selected by a network device is determined.
In embodiments of the present disclosure, the network device may determine the codeword selected by itself. In one implementation, the network device may select an appropriate codeword based on algorithms in the related art, and determine the codeword selected by the network device. The network device calculates a codeword in a codebook according to the algorithm, and then indicates the codeword to the terminal device through DCI (Downlink Control Information ), and the terminal device uses the codeword to perform uplink precoding transmission. As an example, after the terminal device completes the random access procedure and enters the RRC (Radio Resource Control ) connected state, the network device (e.g., a base station) may refer to a physical uplink shared channel (physical uplink share channel, pusch) transmitted by the receiving terminal device, a sounding reference signal (sounding reference signal, srs), or a channel quality information report (csi report) transmitted by the terminal device. The network device (e.g., base station) then selects the appropriate pre-encoded codeword so that the codeword selected by the network device can be determined. It will be appreciated that the implementation manner of selecting the appropriate codeword by the network device may also be implemented by using other algorithms, which are not limited herein and will not be described in detail.
In step 202, the number of first antenna port groups corresponding to the selected codeword is determined.
In the study of enhancing the MIMO uplink 8-port transmission of R18, the number of antenna port groups is discussed. The number of antenna port groups of the UE is defined, namely the number of antenna port groups of the UE is defined as Ng, the antenna ports in each antenna port group are transmitted in a full coherent mode, and the antenna ports among different antenna port groups are transmitted in a non-coherent mode. Ng=1 when the UE is a fully coherent UE; ng=2 or 4 when the UE is a partially coherent UE; ng=8 when the UE is an incoherent UE.
In some embodiments of the present disclosure, the network device may determine, according to the number of second antenna port groups reported by the terminal device and the number of antenna ports of each antenna port group, the number of first antenna port groups corresponding to the codeword selected by the network device. As an example, the number of the first antenna port groups corresponding to the codeword selected by the network device may be defined as Ng'.
In one possible implementation, the network device receives the number of second antenna port groups of the terminal device and the number of antenna ports included in each antenna port group, which are sent by the terminal device. The network device determines a configurable codeword of the terminal device according to the second antenna port group number of the terminal device. The network equipment determines the number of the first antenna port groups corresponding to the code words selected by the network equipment according to the configurable code words of the terminal equipment. The configurable codeword of the terminal device refers to a codeword that the network device can configure for the terminal device, that is, a codeword that the network device can indicate to the terminal device.
As an example, the terminal device reports the number Ng of antenna port groups, and reports the number of antenna ports included in each antenna port group. The network device receives the antenna port group number Ng reported by the terminal device and the serial numbers of the antenna ports contained in each antenna port group. The network device determines the configurable code word of the terminal device according to the antenna port group number Ng, and determines the antenna port group number Ng' corresponding to the code word selected by the network device according to the configurable code word of the terminal device.
Optionally, one possible implementation manner of determining the configurable codeword of the terminal device according to the second antenna port group number of the terminal device may be as follows:
under the condition that the number of the second antenna port group (i.e. the number Ng of the antenna port groups reported by the terminal equipment) is 1, determining that the configurable code word of the terminal equipment is a code word of which the number of the first antenna port group (i.e. the number Ng of the antenna port group corresponding to the code word selected by the network equipment) is a first value, wherein the first value is any one of the following values: 1,2,4 and 8; or,
and under the condition that the number of the second antenna port group is 2, determining that the configurable code word of the terminal equipment is the code word with the number of the first antenna port group being a second value, wherein the second value is any one of the following values: 2,4 and 8; or,
And under the condition that the number of the second antenna port group is 4, determining that the configurable code word of the terminal equipment is a code word with the number of the first antenna port group being a third value, wherein the third value is any one of the following values: 4 and 8; or,
and under the condition that the number of the second antenna port groups is 8, determining the configurable code word of the terminal equipment as the code word with the number of the first antenna port groups being 8.
That is, the configurable codeword for a UE with ng=1 may be a codeword for the first antenna port group number Ng ' =1/2/4/8, i.e. for a UE with ng=1, the network device may configure Ng ' =1 for the UE, or Ng ' =2 for the UE, or Ng ' =4 for the UE, or Ng ' =8 for the UE. The configurable codeword for a UE with ng=2 may be a codeword for the first antenna port group number Ng '=2/4/8, i.e. for a UE with ng=2, the network device may configure the codeword for the UE with Ng' =2, or may configure the codeword for the UE with Ng '=4, or may configure the codeword for the UE with Ng' =8. The configurable codeword for ng=4 UEs may be a codeword for the first antenna port group number Ng ' =4/8, i.e. for ng=4 UEs, the network device may configure Ng ' =4 codewords for the UE or may configure Ng ' =8 codewords for the UE. The configurable codeword for ng=8 UEs may be a codeword for the first antenna port group number Ng '=8, i.e. for ng=8 UEs, the network device may configure Ng' =8 codewords for the UE.
Optionally, another possible implementation manner of determining the configurable codeword of the terminal device according to the second antenna port group number of the terminal device may be as follows:
under the condition that the number of the second antenna port groups (i.e. the number of antenna port groups Ng reported by the terminal equipment) is 1, determining that the configurable code word of the terminal equipment is a code word with the number of the first antenna port groups (i.e. the number of antenna port groups Ng' corresponding to the code word selected by the network equipment) being 1; or,
under the condition that the number of the second antenna port group is 2, determining that the configurable code word of the terminal equipment is the code word with the number of the first antenna port group being 2; or,
under the condition that the number of the second antenna port group is 4, determining that the configurable code word of the terminal equipment is the code word with the number of the first antenna port group being 4; or,
and under the condition that the number of the second antenna port groups is 8, determining the configurable code word of the terminal equipment as the code word with the number of the first antenna port groups being 8.
That is, the configurable codeword for ng=1 UE may be a codeword for the first antenna port group number Ng '=1, i.e. for ng=1 UE, the network device may configure Ng' =1 codeword for the UE. The configurable codeword for ng=2 UE may be a codeword for the first antenna port group number Ng '=2, i.e. for ng=2 UE, the network device may configure Ng' =2 codeword for the UE. The configurable codeword for ng=4 UEs may be a codeword for the first antenna port group number Ng '=4, i.e. for ng=4 UEs, the network device may configure Ng' =4 codewords for the UE. The configurable codeword for ng=8 UEs may be a codeword for the first antenna port group number Ng '=8, i.e. for ng=8 UEs, the network device may configure Ng' =8 codewords for the UE.
After the network device determines the configurable code word of the terminal device according to the antenna port group number Ng, the network device may determine the antenna port group number Ng' corresponding to the code word selected by the network device according to the configurable code word of the terminal device. For example, taking the number ng=2 of antenna port groups reported by the network device received by the terminal device, determining that the configurable codeword of the terminal device is the codeword of the first number Ng ' =2/4/8 of antenna port groups as an example, the network device may determine, according to the configurable codeword of the terminal device, that the codeword selected by the network device is a codeword in a codebook subset of Ng ' =2, and the network device may determine that the number Ng ' of antenna port groups corresponding to the codeword selected by the network device is 2. For another example, taking the number ng=2 of antenna port groups reported by the network device, where determining that the configurable codeword of the terminal device is the codeword of the first number Ng ' =2/4/8 of antenna port groups is taken as an example, the network device may determine, according to the configurable codeword of the terminal device, that the codeword selected by the network device is a codeword in a codebook subset of Ng ' =8, where the network device may determine that the number Ng ' of antenna port groups corresponding to the codeword selected by the network device is 8.
In step 203, according to the first antenna port group number and the selected codeword, indication information is sent to the terminal device, where the indication information indicates the network device to select the codeword and the first antenna port group number corresponding to the codeword.
In the embodiment of the disclosure, the network device may send the indication information to the terminal device according to the first antenna port group number and the selected codeword. And the terminal equipment determines the code word selected by the network equipment and the first antenna port group number corresponding to the code word according to the indication information.
Optionally, in an embodiment of the present disclosure, the number of the first antenna port groups corresponding to the codeword and the codeword selected by the network device may be indicated by an independent indication manner, or the number of the first antenna port groups corresponding to the codeword and the codeword selected by the network device may also be indicated by a joint indication manner.
In one implementation manner, when an independent indication manner is adopted to indicate the codeword selected by the network device and the first antenna port group number corresponding to the codeword, the indication information sent by the network device to the terminal device may include a first indication field and a second indication field, where the first indication field indicates an index value corresponding to the codeword selected by the network device, and the second indication field indicates the antenna port group number Ng' of the codeword selected by the network device. As an example, the first indication field may be a TPMI indication field.
As an example, a precoding matrix antenna port group number indication field (i.e., the second indication field described above) may be introduced in the DCI, where the network device indicates the number Ng 'of antenna ports of the codeword selected by the network device (where Ng' is one of 1, 2, 4, and 8), and the length of the second indication field may be a fixed bit length or a dynamic bit length. For example, when the length of the second indication field is a fixed bit length, a 2-bit indication may be used, one possible way being as shown in Table 1 below
Table 1 mapping relation table of antenna port number Ng' and index
| |
0 | 1 | 2 | 3 |
| Ng’ | 1 | 2 | 4 | 8 |
It will be appreciated that each of the elements in table 1 described above are independent, and are illustratively listed in the same table, but do not represent that all elements in the table must exist simultaneously in accordance with what is shown in the table. Wherein the value of each element is independent of any other element value in table 1. It will be appreciated by those skilled in the art that the values of each element in table 1 are a separate embodiment. It should be noted that, in the embodiment of the present disclosure, a plurality of tables are included, and each of the tables is similar to table 1, where a plurality of independent embodiments are combined into a same table, and each element in the tables should be considered as an independent embodiment.
For another example, when the length of the second indication field is a dynamic bit length, if ng=1 or 2 of the RRC configuration, 2 bits are used, if ng=4 of the RRC configuration, 1 bit is used, and if ng=8 of the RRC configuration, no indication is required.
In one implementation manner, when the code word selected by the network device and the first antenna port group number corresponding to the code word are indicated by adopting a joint indication manner, the indication information sent by the network device to the terminal device may include a joint indication field, where the joint indication field jointly indicates an index value corresponding to the code word selected by the network device and the antenna port group number of the code word selected by the network device.
Various implementations of step 203 described above will be described in terms of both independent and joint indications.
1) Independently indicating the code word selected by the network device and the first antenna port group number corresponding to the code word
In some embodiments of the present disclosure, in the case where the first antenna port group number is 1, as shown in fig. 3, the step 203, that is, one implementation manner of sending the indication information to the terminal device according to the first antenna port group number and the selected codeword, includes the following steps:
In step 301, a first TPMI codebook table corresponding to a first antenna port group number is determined.
In this embodiment, the first TPMI codebook table is a TPMI codebook table of a full-coherence codeword.
In one implementation, a TPMI codebook table of Ng' =1 is agreed in the protocol, where the TPMI codebook table is a TPMI codebook table of full-coherent codewords, for example, the TPMI codebook table includes all 8 antenna ports full-coherent codewords with rank from 1 to 8. In the case of the first antenna port group number Ng '=1, the network device may determine a TPMI codebook table corresponding to the Ng' =1.
In step 302, an index value corresponding to the selected codeword is determined from the first TPMI codebook table.
Optionally, the network device may determine, from the first TPMI codebook table, an index value corresponding to the codeword selected by the network device.
In step 303, a first indication field is determined based on an index value corresponding to the selected codeword.
Optionally, the network device determines the first indication field according to an index value corresponding to the codeword selected by the network device. As an example, the first indication field may be a TPMI indication field.
In step 304, a second indication field is determined based on the first antenna port group number.
Optionally, the network device determines the second indication domain according to the number of the first antenna port groups corresponding to the code words selected by the network device. The length of the second indication field may be a fixed bit length or a dynamic bit length. For example, when the length of the second indication field is a fixed bit length, the first antenna port group number Ng 'may be indicated using 2 bits, e.g., the first antenna port group number Ng' =1, and then the bit value "00" may be used. As another example, when the length of the second indication field is a dynamic bit length, ng=1 of the RRC configuration, 2 bits are used to indicate the first antenna port group number Ng ', e.g., the first antenna port group number Ng' =1, and a bit value of "00" may be used to indicate.
In step 305, indication information comprising a first indication field and a second indication field is sent to the terminal device.
Alternatively, the network device may send indication information including the first indication field and the second indication field to the terminal device. And the terminal equipment determines the code word selected by the network equipment and the first antenna port group number corresponding to the code word according to the first indication domain and the second indication domain in the indication information.
That is, when the codeword selected by the network device satisfies Ng' =1, the network device may indicate the codeword through the full coherence codeword TPMI table. The terminal device may calculate an 8-port codeword from the indicated codeword.
In some embodiments of the present disclosure, in the case where the first antenna port group number is 2, as shown in fig. 4, the step 203, that is, one implementation manner of sending the indication information to the terminal device according to the first antenna port group number and the selected codeword, includes the following steps:
in step 401, a second TPMI codebook table corresponding to the first antenna port group number is determined.
In this embodiment, the second TPMI codebook table includes all 4 antenna ports full coherent codewords with Rank from 1 to 4 and a full zero matrix. In one implementation, a TPMI codebook table of Ng' =2 is agreed in the protocol, and includes all 4 antenna port full-coherent codewords with Rank from 1 to 4 and a full-zero matrix. In the case of the first antenna port group number Ng '=2, the network device may determine a TPMI codebook table corresponding to the Ng' =2. For example, one possible way of this second TPMI codebook table is shown in table 2 below.
Table 2 Ng' =2 TPMI codebook table
In step 402, an index value corresponding to the selected codeword is determined from the second TPMI codebook table.
Optionally, the network device may determine, from the second TPMI codebook table, an index value corresponding to the codeword selected by the network device.
For example, in a possible manner of the second TPMI codebook table, as in table 2 above, the precoding structure is
For example, assume that the codeword selected by the network device is
It can be determined from the above table 2 that the 4-port codeword indexes are respectively indicatedLeads 16 and 4; assume that the codeword selected by the network device is +.>
It can be determined from the above table 2 that the 4-port codeword indexes 24 and 30 are indicated, respectively.
In step 403, a first indication field is determined based on an index value corresponding to the selected codeword.
In an embodiment of the disclosure, the first indication field includes a first indication subdomain and a second indication subdomain, where the first indication subdomain indicates a codeword corresponding to the first antenna port group, and the second indication subdomain indicates a codeword corresponding to the second antenna port group. The first indication subfield and the second indication subfield may be TPMI subfields, respectively. In one implementation, the first indication subdomain may use 5 bits to indicate codewords corresponding to the first antenna port group, and the second indication subdomain may use 5 bits to indicate codewords corresponding to the second antenna port group.
In step 404, a second indication field is determined based on the first antenna port group number.
Optionally, the network device determines the second indication domain according to the number of the first antenna port groups corresponding to the code words selected by the network device. The length of the second indication field may be a fixed bit length or a dynamic bit length. For example, when the length of the second indication field is a fixed bit length, the first antenna port group number Ng 'may be indicated using 2 bits, e.g., the first antenna port group number Ng' =2, and then the bit value "01" may be used. As another example, when the length of the second indication field is a dynamic bit length, if ng=1 or 2 of the RRC configuration, the first antenna port group number Ng 'is indicated using 2 bits, such as the first antenna port group number Ng' =2, a bit value of "01" may be used.
In step 405, indication information comprising a first indication field and a second indication field is sent to a terminal device.
Alternatively, the network device may send indication information including the first indication field and the second indication field to the terminal device. And the terminal equipment determines the code word selected by the network equipment and the first antenna port group number corresponding to the code word according to the first indication domain and the second indication domain in the indication information.
For example, when the codeword selected by the network device satisfies Ng' =2, the network device may determine the first indication field according to the second TPMI codebook table, that is, table 2 (including all 4 antenna port full-coherent codewords of rank=1-4 and 0 matrix), using 5 bits to indicate the codeword corresponding to the first antenna port group, using 5 bits to indicate the codeword corresponding to the second antenna port group, and determining the second indication field according to the number of the first antenna port groups. The network device sends indication information comprising the first indication domain and the second indication domain to the terminal device. The terminal equipment calculates 8-port code words according to the code words indicated in the indication information, and determines the first antenna port group number corresponding to the code words selected by the network equipment according to the antenna port group number indicated in the indication information.
In some embodiments of the present disclosure, in the case where the first antenna port group number is 4, as shown in fig. 5, the step 203, that is, one implementation manner of sending the indication information to the terminal device according to the first antenna port group number and the selected codeword, includes the following steps:
in step 501, a third TPMI codebook table corresponding to the first antenna port group number is determined.
In this embodiment, the third TPMI codebook table includes all 2 antenna ports full coherent codewords from 1 to 2 and a full zero matrix. In one implementation, a TPMI codebook table of Ng' =4 is agreed in the protocol, and includes all 2 antenna port full-coherent codewords with Rank from 1 to 2 and a full-zero matrix. In the case of the first antenna port group number Ng '=4, the network device may determine a TPMI codebook table corresponding to the Ng' =4. For example, one possible way of this third TPMI codebook table is shown in table 3 below.
Table 3Ng' =4 TPMI codebook table
In step 502, an index value corresponding to the selected codeword is determined from the third TPMI codebook table.
Optionally, the network device may determine, from the third TPMI codebook table, an index value corresponding to the codeword selected by the network device.
For example, in a possible manner of the third TPMI codebook table, as in table 3 above, the precoding structure is
For example, assume that the codeword selected by the network device is
It can be determined from the above table 3 that the 2- port codeword indexes 0,1,6 and 2 are indicated, respectively.
In step 503, a first indication field is determined based on an index value corresponding to the selected codeword.
The first indication domain comprises a first indication subdomain, a second indication subdomain, a third indication subdomain and a fourth indication subdomain, wherein the first indication subdomain indicates a codeword corresponding to the first antenna port group, the second indication subdomain indicates a codeword corresponding to the second antenna port group, the third indication subdomain indicates a codeword corresponding to the third antenna port group, and the fourth indication subdomain indicates a codeword corresponding to the fourth antenna port group. The first indication subfield, the second indication subfield, the third indication subfield, and the fourth indication subfield may be TPMI subfields, respectively. In one implementation, the first indication sub-field may use 3 bits to indicate codewords corresponding to the first antenna port group, the second indication sub-field may use 3 bits to indicate codewords corresponding to the second antenna port group, the third indication sub-field may use 3 bits to indicate codewords corresponding to the third antenna port group, and the fourth indication sub-field may use 3 bits to indicate codewords corresponding to the fourth antenna port group.
In step 504, a second indication field is determined based on the first antenna port group number.
Optionally, the network device determines the second indication domain according to the number of the first antenna port groups corresponding to the code words selected by the network device. The length of the second indication field may be a fixed bit length or a dynamic bit length. For example, when the length of the second indication field is a fixed bit length, the first antenna port group number Ng 'may be indicated using 2 bits, e.g., the first antenna port group number Ng' =4, and then the bit value "10" may be used. As another example, when the length of the second indication field is a dynamic bit length, if ng=1 or 2 of the RRC configuration, the first antenna port group number Ng 'is indicated using 2 bits, for example, the first antenna port group number Ng' =4, and a bit value of "01" may be used; if ng=4 of the RRC configuration, the first antenna port group number Ng 'is indicated using 1 bit, such as the first antenna port group number Ng' =4, a bit value of "0" may be used.
In step 505, indication information comprising a first indication field and a second indication field is sent to the terminal device.
Alternatively, the network device may send indication information including the first indication field and the second indication field to the terminal device. And the terminal equipment determines the code word selected by the network equipment and the first antenna port group number corresponding to the code word according to the first indication domain and the second indication domain in the indication information.
For example, when the codeword selected by the network device satisfies Ng' =4, the network device may determine the first indication domain according to the third TPMI codebook table, that is, table 3 (including all 2 antenna port full-coherent codewords of rank=1-2 and 0 matrix), using 3 bits to indicate the codeword corresponding to the first antenna port group, using 3 bits to indicate the codeword corresponding to the second antenna port group, using 3 bits to indicate the codeword corresponding to the third antenna port group, using 3 bits to indicate the codeword corresponding to the fourth antenna port group, and determining the second indication domain according to the number of the first antenna port groups. The network device sends indication information comprising the first indication domain and the second indication domain to the terminal device. The terminal equipment calculates 8-port code words according to the code words indicated in the indication information, and determines the first antenna port group number corresponding to the code words selected by the network equipment according to the antenna port group number indicated in the indication information.
In some embodiments of the present disclosure, in the case that the first antenna port group number is 8, as shown in fig. 6, the step 203, that is, one implementation manner of sending the indication information to the terminal device according to the first antenna port group number and the selected codeword includes the following steps:
In step 601, a fourth TPMI codebook table corresponding to the first antenna port group number is determined.
In this embodiment, the fourth TPMI codebook table is a TPMI codebook table of a non-coherent codeword.
In one implementation, a TPMI codebook table of Ng' =8 is agreed in the protocol, where the TPMI codebook table is a TPMI codebook table of non-coherent codewords, for example, the TPMI codebook table includes all 1 antenna port non-coherent codewords with rank from 1 to 8. In the case of the first antenna port group number Ng '=8, the network device may determine a TPMI codebook table corresponding to the Ng' =8.
In step 602, an index value corresponding to the selected codeword is determined from the fourth TPMI codebook table.
Optionally, the network device may determine, from the fourth TPMI codebook table, an index value corresponding to the codeword selected by the network device.
In step 603, a first indication field is determined based on an index value corresponding to the selected codeword.
Optionally, the network device determines the first indication field according to an index value corresponding to the codeword selected by the network device. As an example, the first indication field may be a TPMI indication field.
In step 604, a second indication field is determined based on the first antenna port group number.
Optionally, the network device determines the second indication domain according to the number of the first antenna port groups corresponding to the code words selected by the network device. The length of the second indication field may be a fixed bit length or a dynamic bit length. For example, when the length of the second indication field is a fixed bit length, the first antenna port group number Ng 'may be indicated using 2 bits, e.g., the first antenna port group number Ng' =8, and then the bit value "11" may be used. As another example, when the length of the second indication field is a dynamic bit length, if ng=1 or 2 of the RRC configuration, the first antenna port group number Ng 'is indicated using 2 bits, for example, the first antenna port group number Ng' =8, and the bit value "11" may be used for indication; if ng=4 of the RRC configuration, the first antenna port group number Ng 'may be indicated using 1 bit, such as the first antenna port group number Ng' =8, and the bit value "1" may be used; no indication may be required if ng=8 for RRC configuration.
In step 605, indication information comprising a first indication field and a second indication field is sent to a terminal device.
Alternatively, the network device may send indication information including the first indication field and the second indication field to the terminal device. And the terminal equipment determines the code word selected by the network equipment and the first antenna port group number corresponding to the code word according to the first indication domain and the second indication domain in the indication information.
That is, when the codeword selected by the network device satisfies Ng' =8, the network device may indicate the codeword through the non-coherent codeword TPMI table. The terminal equipment can calculate an 8-port code word according to the indicated code word, and determine the first antenna port group number corresponding to the code word selected by the network equipment according to the antenna port group number indicated in the indication information.
It should be noted that, in one implementation, the first indication field in the indication information may use 1 TPMI field, where the bit field length of the TPMI field is the same as the bit field length corresponding to Ng' with the largest required bit field length. For example, as shown in fig. 7, ng' =1 consists of 1 TPMI subfield; ng' =2, consisting of 2 TPMI subfields; ng' =4, consisting of 4 TPMI subfields; ng' =8, consisting of 1 TPMI subfield; the other bits are set to 0. In another implementation, the first indication field in the indication information may use 4 TPMI fields, where the length of each TPMI field is determined by the number of full-coherent codewords, the number of non-coherent codewords, and the number of indication bits required for each sub-matrix when Ng' =2 and 4.
It should also be noted that the network device may send indication information to the terminal device to indicate the beam index and the co-phasing coefficient index. The terminal equipment determines a beam index and a co-phase coefficient index according to the indication in the indication information, and determines a codeword selected by the network equipment according to the beam index and the co-phase coefficient index. Optionally, in some embodiments of the present disclosure, in a case where the first antenna port group number Ng' =1, as shown in fig. 8, step 203 above, that is, one implementation manner of sending the indication information to the terminal device according to the first antenna port group number and the selected codeword includes the following steps:
In step 801, a beam index and a co-phasing coefficient index are determined.
In one possible implementation manner, the network device may determine a corresponding beam index and a co-phase coefficient index according to the codeword selected by the network device, where the beam index may include: i11 I12, i13, the co-phasing coefficient index may comprise i2.
In step 802, a first indication field is determined based on the beam index and the co-phasing coefficient index.
Alternatively, the network device may determine the first indication field from the beam index and the co-phasing coefficient index. That is, when the codeword selected by the network device satisfies Ng' =1, the network device may indicate the codeword selected by the network device through the beam index (e.g., including i11, i12, i 13) and the co-phasing coefficient index (e.g., including i 2).
In step 803, a second indication field is determined based on the first antenna port group number.
Optionally, the network device determines the second indication domain according to the number of the first antenna port groups corresponding to the code words selected by the network device. The length of the second indication field may be a fixed bit length or a dynamic bit length. For example, when the length of the second indication field is a fixed bit length, the first antenna port group number Ng 'may be indicated using 2 bits, e.g., the first antenna port group number Ng' =1, and then the bit value "00" may be used. As another example, when the length of the second indication field is a dynamic bit length, ng=1 of the RRC configuration, 2 bits are used to indicate the first antenna port group number Ng ', e.g., the first antenna port group number Ng' =1, and a bit value of "00" may be used to indicate.
In step 804, indication information comprising a first indication field and a second indication field is sent to the terminal device.
Alternatively, the network device may send indication information including the first indication field and the second indication field to the terminal device. The terminal equipment determines a beam index and a co-phase coefficient index according to a first indication domain in the indication information, and determines a corresponding code word according to the beam index and the co-phase coefficient index, wherein the code word is a code word selected by the network equipment. The terminal device may further determine, according to a second indication field in the indication information, a first antenna port group number corresponding to the codeword selected by the network device.
2) Indicating the code word selected by the network equipment and the first antenna port group number corresponding to the code word
In some embodiments of the present disclosure, as shown in fig. 9, the step 203, that is, one implementation of sending the indication information to the terminal device according to the first antenna port group number and the selected codeword, includes the following steps:
in step 901, a fifth TPMI codebook table corresponding to the first antenna port group number is determined.
In this embodiment, all codewords from 1 to 8 Rank are included in the fifth TPMI codebook table.
In one implementation, a TPMI codebook table of Ng '=1, a TPMI codebook table of Ng' =2, a TPMI codebook table of Ng '=4, and a TPMI codebook table of Ng' =8 are agreed in the protocol, where the TPMI codebook table of Ng '=1 includes all codewords of Ng' =1 from 1 to 8 (rank=1-8), the TPMI codebook table of Ng '=2 includes all codewords of Ng' =2 from 1 to 8 (rank=1-8), the TPMI codebook table of Ng '=4 includes all codewords of Ng' =4 from 1 to 8 (rank=1-8), and the TPMI codebook table of Ng '=8 includes all codewords of Ng' =8 from 1 to 8 (rank=1-8).
After determining the first antenna port group number corresponding to the codeword selected by the network device, the network device may determine a fifth TPMI codebook table corresponding to the first antenna port group number based on a protocol convention. For example, assuming that the network device determines the number Ng ' =2 of the first antenna port group corresponding to the codeword selected by the network device, the network device may determine, based on a protocol convention, a TPMI codebook table of Ng ' =2 of the fifth TPMI codebook table corresponding to the number of the first antenna port group, where the table includes all codewords of Rank from 1 to 8 (rank=1-8) when Ng ' =2.
In step 902, an index value corresponding to the selected codeword is determined from the fifth TPMI codebook table.
Optionally, the network device may determine, according to the codeword selected by the network device, an index value corresponding to the codeword from the fifth TPMI codebook table.
In step 903, a corresponding bit domain mapping index is determined from the joint indication domain table according to the index value corresponding to the selected codeword and the first antenna port group number.
In one implementation, a joint indication field table, such as precoding information and an antenna port group (Precoding information and number of antenna groups), is agreed in the protocol, for example, one possible way of the joint indication field table is as follows table 4, in which the codewords of rank=1 when Ng ' =1, the codewords of rank=1 when Ng ' =2, the codewords of rank=1 when ng=4 ', the codewords of rank=1 when ng=8 ', the codewords of rank= …, rank=8 when Ng ' =1, the codewords of rank=8 when Ng ' =2, the codewords of rank=8 when Ng ' =4, and the codewords of rank=8 when Ng ' =8 ' are sequentially given, where the specific TPMI value needs to be determined according to the 3GPP conference progress.
Table 4 Joint indication Domain Table
In this embodiment, the network device may determine, according to an index value corresponding to the codeword selected by the network device and the number of first antenna port groups corresponding to the codeword, a corresponding bit domain mapping index from a joint indication domain table agreed by a protocol.
In step 904, a joint indication field is determined from the bit field mapping index.
Optionally, after determining the corresponding bit domain mapping index from the joint indication domain table, the network device may determine the joint indication domain according to the bit domain mapping index.
In step 905, indication information including a joint indication field is transmitted to the terminal device.
Alternatively, the network device may send indication information including the joint indication field to the terminal device. And the terminal equipment determines the code word selected by the network equipment and the first antenna port group number corresponding to the code word according to the joint indication domain in the indication information.
In the embodiment of the disclosure, by providing the indication scheme of the code word selected by the network device and the antenna port group number corresponding to the code word, the network device can send indication information to the terminal device so as to indicate the code word selected by the network device and the antenna port group number corresponding to the code word, thereby solving the indication problem of the antenna port group number and the code word.
It will be appreciated that the above embodiments are implementations of the indication method of the embodiments of the present disclosure described from the network device side. The embodiment of the disclosure also provides a determination method, and an implementation manner of the determination method will be described from a terminal device side. Referring to fig. 10, fig. 10 is a flowchart of a determining method according to an embodiment of the disclosure. It should be noted that, the determining method of the embodiments of the present disclosure may be performed by a terminal device. As shown in fig. 10, the method may include, but is not limited to, the following steps.
In step 1001, indication information sent by a network device is received.
Alternatively, the terminal device may receive the indication information sent by the network device. In this embodiment, the indication information indicates a codeword selected by the network device and a first antenna port group number corresponding to the codeword.
In some embodiments of the present disclosure, the number of first antenna port groups corresponding to the codeword selected by the network device may be determined by the network device based on the number of second antenna port groups of the terminal device reported by the terminal device and the number of antenna ports included in each antenna port group. In one implementation, the terminal device may send, to the network device, the number Ng of the second antenna port group of the terminal device and the number of the antenna port included in each antenna port group; the second antenna port group number and the number of the antenna port included in each antenna port group are changed to instruct the network device to determine the first antenna port group number corresponding to the codeword selected by the network device according to the configurable codeword of the terminal device.
In one possible implementation, the network device receives the number of second antenna port groups of the terminal device and the number of antenna ports included in each antenna port group, which are sent by the terminal device. The network device determines a configurable codeword of the terminal device according to the second antenna port group number of the terminal device. The network equipment determines the number of the first antenna port groups corresponding to the code words selected by the network equipment according to the configurable code words of the terminal equipment.
As an example, the terminal device reports the number Ng of antenna port groups, and reports the number of antenna ports included in each antenna port group. The network device receives the antenna port group number Ng reported by the terminal device and the serial numbers of the antenna ports contained in each antenna port group. The network device determines the configurable code word of the terminal device according to the antenna port group number Ng, and determines the antenna port group number Ng' corresponding to the code word selected by the network device according to the configurable code word of the terminal device.
Optionally, one possible implementation manner of determining the configurable codeword of the terminal device according to the second antenna port group number of the terminal device may be as follows:
under the condition that the number of the second antenna port group (i.e. the number Ng of the antenna port groups reported by the terminal equipment) is 1, determining that the configurable code word of the terminal equipment is a code word of which the number of the first antenna port group (i.e. the number Ng of the antenna port group corresponding to the code word selected by the network equipment) is a first value, wherein the first value is any one of the following values: 1,2,4 and 8; or,
and under the condition that the number of the second antenna port group is 2, determining that the configurable code word of the terminal equipment is the code word with the number of the first antenna port group being a second value, wherein the second value is any one of the following values: 2,4 and 8; or,
And under the condition that the number of the second antenna port group is 4, determining that the configurable code word of the terminal equipment is a code word with the number of the first antenna port group being a third value, wherein the third value is any one of the following values: 4 and 8; or,
and under the condition that the number of the second antenna port groups is 8, determining the configurable code word of the terminal equipment as the code word with the number of the first antenna port groups being 8.
That is, the configurable codeword for a UE with ng=1 may be a codeword for the first antenna port group number Ng ' =1/2/4/8, i.e. for a UE with ng=1, the network device may configure Ng ' =1 for the UE, or Ng ' =2 for the UE, or Ng ' =4 for the UE, or Ng ' =8 for the UE. The configurable codeword for a UE with ng=2 may be a codeword for the first antenna port group number Ng '=2/4/8, i.e. for a UE with ng=2, the network device may configure the codeword for the UE with Ng' =2, or may configure the codeword for the UE with Ng '=4, or may configure the codeword for the UE with Ng' =8. The configurable codeword for ng=4 UEs may be a codeword for the first antenna port group number Ng ' =4/8, i.e. for ng=4 UEs, the network device may configure Ng ' =4 codewords for the UE or may configure Ng ' =8 codewords for the UE. The configurable codeword for ng=8 UEs may be a codeword for the first antenna port group number Ng '=8, i.e. for ng=8 UEs, the network device may configure Ng' =8 codewords for the UE.
Optionally, another possible implementation manner of determining the configurable codeword of the terminal device according to the second antenna port group number of the terminal device may be as follows:
under the condition that the number of the second antenna port groups (i.e. the number of antenna port groups Ng reported by the terminal equipment) is 1, determining that the configurable code word of the terminal equipment is a code word with the number of the first antenna port groups (i.e. the number of antenna port groups Ng' corresponding to the code word selected by the network equipment) being 1; or,
under the condition that the number of the second antenna port group is 2, determining that the configurable code word of the terminal equipment is the code word with the number of the first antenna port group being 2; or,
under the condition that the number of the second antenna port group is 4, determining that the configurable code word of the terminal equipment is the code word with the number of the first antenna port group being 4; or,
and under the condition that the number of the second antenna port groups is 8, determining the configurable code word of the terminal equipment as the code word with the number of the first antenna port groups being 8.
That is, the configurable codeword for ng=1 UE may be a codeword for the first antenna port group number Ng '=1, i.e. for ng=1 UE, the network device may configure Ng' =1 codeword for the UE. The configurable codeword for ng=2 UE may be a codeword for the first antenna port group number Ng '=2, i.e. for ng=2 UE, the network device may configure Ng' =2 codeword for the UE. The configurable codeword for ng=4 UEs may be a codeword for the first antenna port group number Ng '=4, i.e. for ng=4 UEs, the network device may configure Ng' =4 codewords for the UE. The configurable codeword for ng=8 UEs may be a codeword for the first antenna port group number Ng '=8, i.e. for ng=8 UEs, the network device may configure Ng' =8 codewords for the UE.
After the network device determines the configurable code word of the terminal device according to the antenna port group number Ng, the network device may determine the antenna port group number Ng' corresponding to the code word selected by the network device according to the configurable code word of the terminal device. For example, taking the number ng=2 of antenna port groups reported by the network device received by the terminal device, determining that the configurable codeword of the terminal device is the codeword of the first number Ng ' =2/4/8 of antenna port groups as an example, the network device may determine, according to the configurable codeword of the terminal device, that the codeword selected by the network device is a codeword in a codebook subset of Ng ' =2, and the network device may determine that the number Ng ' of antenna port groups corresponding to the codeword selected by the network device is 2. For another example, taking the number ng=2 of antenna port groups reported by the network device, where determining that the configurable codeword of the terminal device is the codeword of the first number Ng ' =2/4/8 of antenna port groups is taken as an example, the network device may determine, according to the configurable codeword of the terminal device, that the codeword selected by the network device is a codeword in a codebook subset of Ng ' =8, where the network device may determine that the number Ng ' of antenna port groups corresponding to the codeword selected by the network device is 8.
Optionally, the indication information received by the terminal device may be indication information sent by the network device to the terminal device according to a codeword selected by the network device and a first antenna port group number corresponding to the codeword. The implementation manner of the indication information sent to the terminal device by the network device according to the code word selected by the network device and the first antenna port group number corresponding to the code word may be implemented by any one of the indication methods in the foregoing embodiments, which is not limited herein or is not repeated herein.
In step 1002, according to the indication information, a codeword selected by the network device and a first antenna port group number corresponding to the codeword are determined.
Optionally, the terminal device may determine, according to the received indication information of the network device, a codeword selected by the network device and a first antenna port group number corresponding to the codeword.
Optionally, in an embodiment of the present disclosure, the number of the first antenna port groups corresponding to the codeword and the codeword selected by the network device may be indicated by an independent indication manner, or the number of the first antenna port groups corresponding to the codeword and the codeword selected by the network device may also be indicated by a joint indication manner.
In one implementation manner, when an independent indication manner is adopted to indicate the codeword selected by the network device and the first antenna port group number corresponding to the codeword, the indication information sent by the network device to the terminal device may include a first indication field and a second indication field, where the first indication field indicates an index value corresponding to the codeword selected by the network device, and the second indication field indicates the antenna port group number Ng' of the codeword selected by the network device. For descriptions of the first indication field and the second indication field, reference may be made to descriptions of the first indication field and the second indication field in the indication method of the above embodiment, which are not limited herein, and are not repeated herein.
In one implementation manner, when the code word selected by the network device and the first antenna port group number corresponding to the code word are indicated by adopting a joint indication manner, the indication information sent by the network device to the terminal device may include a joint indication field, where the joint indication field jointly indicates an index value corresponding to the code word selected by the network device and the antenna port group number of the code word selected by the network device. For the description of the joint indication domain, reference may be made to the description of the joint indication domain in the indication method of the foregoing embodiment, which is not limited herein, and is not repeated herein.
Various implementations of step 1002 described above will be described in terms of both independent and joint indications.
1) Independently indicating the code word selected by the network device and the first antenna port group number corresponding to the code word
In some embodiments of the present disclosure, the step 1002, that is, the determining, according to the indication information, the codeword selected by the network device and an implementation manner of the first antenna port group number corresponding to the codeword, includes the following steps:
step 10021, determining, according to the first indication field in the indication information, an index value corresponding to the codeword selected by the network device.
Optionally, the terminal device may determine, according to the first indication field in the received indication information of the network device, an index value corresponding to the codeword selected by the network device.
Step 10022, determining the number of the first antenna port groups corresponding to the codeword according to the second indication field in the indication information.
Optionally, the terminal device may determine, according to the second indication field in the received indication information of the network device, the number of first antenna port groups corresponding to the codeword selected by the network device. For example, if the bit value of the second indication field is 01, the number Ng' =2 of the first antenna port group corresponding to the codeword selected by the network device is determined.
Step 10023, determining the code word selected by the network device according to the index value corresponding to the code word selected by the network device and the first antenna port group number corresponding to the code word.
Optionally, the terminal device may determine a corresponding TPMI codebook table according to the number of first antenna ports corresponding to the codeword selected by the network device, and determine the codeword selected by the network device from the corresponding TPMI codebook table according to the index value corresponding to the codeword selected by the network device.
In one implementation manner, the implementation manner of step 10023 (i.e. determining the code word selected by the network device according to the index value corresponding to the code word selected by the network device and the number of the first antenna port groups corresponding to the code word) may be as follows: determining a first transmission precoding matrix indicator TPMI codebook table corresponding to the first antenna port group number Ng' =1; the first TPMI codebook table is a TPMI codebook table of a full-coherence codeword; and determining the code word selected by the network equipment from the first TPMI codebook table according to the index value corresponding to the code word selected by the network equipment.
As an example, when the codeword selected by the network device satisfies Ng '=1, the terminal device may determine a TPMI codebook table of Ng' =1 based on the protocol convention, where the TPMI codebook table is a TPMI codebook table of full-coherent codewords, for example, the TPMI codebook table includes all 8 antenna ports full-coherent codewords with rank from 1 to 8. The terminal device may determine the codeword selected by the network device from the TPMI codebook table of Ng' =1 according to the index value corresponding to the codeword selected by the network device, so as to obtain an 8-port codeword.
In one implementation manner, the implementation manner of step 10023 (i.e. determining the code word selected by the network device according to the index value corresponding to the code word selected by the network device and the number of the first antenna port groups corresponding to the code word) may be as follows: determining a second TPMI codebook table corresponding to the first antenna port group number in the case where the first antenna port group number Ng' =2; wherein, the second TPMI codebook table includes all 4 antenna ports full coherent codewords and full zero matrix with Rank from 1 to 4; and determining the code word selected by the network equipment from the second TPMI codebook table according to the index value corresponding to the code word selected by the network equipment.
As an example, when the codeword selected by the network device satisfies Ng '=2, the terminal device may determine a TPMI codebook table of Ng' =2 based on a protocol convention, where the TPMI codebook table includes all 4 antenna ports full coherent codewords with Rank from 1 to 4 and a full zero matrix. The terminal device may determine the codeword selected by the network device from the TPMI codebook table of Ng' =2 according to the index value corresponding to the codeword selected by the network device, so as to obtain an 8-port codeword.
For example, taking the TPMI codebook table with table 2 Ng' =2 as an example, assuming that the first indication field in the indication information indicates the index 16 and the index 4 of the 4-port codeword respectively, the terminal device may determine the codeword of the index 16 and the codeword of the index 4 from the table 2, and may obtain an 8-port codeword (i.e. the codeword selected by the network device) in combination with the precoding structure, where the 8-port codeword is 
Assuming that the first indication field in the indication information indicates the 4-port codeword indexes 24 and 30, respectively, the terminal device may determine the codeword of the index 24 and the codeword of the index 30 from the table 2, and may obtain an 8-port codeword (i.e. the codeword selected by the network device) in combination with the precoding structure, where the 8-port codeword is ∈>
In one implementation manner, the implementation manner of step 10023 (i.e. determining the code word selected by the network device according to the index value corresponding to the code word selected by the network device and the number of the first antenna port groups corresponding to the code word) may be as follows: determining a third TPMI codebook table corresponding to the first antenna port group number in the case where the first antenna port group number Ng' =4; wherein, the third TPMI codebook table includes all 2 antenna ports full coherent codewords from 1 to 2 and a full zero matrix; and determining the code word selected by the network equipment from the third TPMI codebook table according to the index value corresponding to the code word selected by the network equipment.
As an example, when the codeword selected by the network device satisfies Ng '=4, the terminal device may determine a TPMI codebook table of Ng' =4 based on a protocol convention, where the TPMI codebook table includes all 2 antenna ports full coherent codewords from Rank 1 to 2 and a full zero matrix. The terminal device may determine the codeword selected by the network device from the TPMI codebook table of Ng' =4 according to the index value corresponding to the codeword selected by the network device, so as to obtain an 8-port codeword.
For example, taking the TPMI codebook table with table 3 Ng' =4 as an example, assuming that the first indication field in the indication information indicates 2- port codeword indexes 0,1,6 and 2, respectively, the terminal device may determine the codeword with index 0, the codeword with index 1, the codeword with index 6, and the codeword with index 2 from the table 3, and combine the precoding structure to obtain an 8-port codeword (i.e. the codeword selected by the network device), where the 8-port codeword is
In one implementation manner, the implementation manner of step 10023 (i.e. determining the code word selected by the network device according to the index value corresponding to the code word selected by the network device and the number of the first antenna port groups corresponding to the code word) may be as follows: determining a fourth TPMI codebook table corresponding to the first antenna port group number in the case where the first antenna port group number Ng' =8; wherein the fourth TPMI codebook table is a TPMI codebook table of a non-coherent codeword; and determining the code word selected by the network equipment from the fourth TPMI codebook table according to the index value corresponding to the code word selected by the network equipment.
As an example, when the codeword selected by the network device satisfies Ng '=8, the terminal device may determine a TPMI codebook table of Ng' =8 based on the protocol convention, where the TPMI codebook table is a TPMI codebook table of non-coherent codewords, for example, the TPMI codebook table includes all 1 antenna port non-coherent codewords with rank from 1 to 8. The terminal device may determine the codeword selected by the network device from the TPMI codebook table of Ng' =8 according to the index value corresponding to the codeword selected by the network device, so as to obtain an 8-port codeword.
It should be noted that, the network device may send indication information to the terminal device to indicate the beam index and the co-phase coefficient index. The terminal equipment determines a beam index and a co-phase coefficient index according to the indication in the indication information, and determines a codeword selected by the network equipment according to the beam index and the co-phase coefficient index. Optionally, in some embodiments of the present disclosure, in the case where the first antenna port group number Ng' =1, the implementation manner of step 1002 (i.e. determining, according to the indication information, the codeword selected by the network device and the first antenna port group number corresponding to the codeword) may be as follows: determining a beam index and a co-phase coefficient index according to a first indication domain in the indication information; determining a codeword selected by the network device according to the beam index and the co-phase coefficient index; and determining the number of the first antenna port groups corresponding to the code word according to the second indication field in the indication information.
In one implementation, when the codeword selected by the network device satisfies Ng' =1, the network device may indicate the codeword selected by the network device through a beam index (e.g., including i11, i12, i 13) and a co-phasing coefficient index (e.g., including i 2). The terminal device may determine the corresponding beam index and the co-phase coefficient index according to the first indication field in the received indication information of the network device. And the terminal equipment calculates and obtains an 8-port code word according to the beam index and the co-phase coefficient index. The terminal device may further determine, according to a second indication field in the indication information, a first antenna port group number corresponding to the codeword.
2) Indicating the code word selected by the network equipment and the first antenna port group number corresponding to the code word
In some embodiments of the present disclosure, the implementation manner of step 1002 (i.e., determining, according to the indication information, the codeword selected by the network device and the first antenna port group corresponding to the codeword) may be as follows: according to the joint indication domain in the indication information, determining an index value corresponding to a code word selected by the network equipment and a first antenna port group number corresponding to the code word from a joint indication domain table; determining a fifth TPMI codebook table corresponding to the first antenna port group number; wherein, the fifth TPMI codebook table includes all codewords with Rank from 1 to 8; and determining the code word selected by the network equipment from the fifth TPMI codebook table according to the index value corresponding to the code word selected by the network equipment.
In one implementation, a TPMI codebook table of Ng '=1, a TPMI codebook table of Ng' =2, a TPMI codebook table of Ng '=4, and a TPMI codebook table of Ng' =8 are agreed in the protocol, where the TPMI codebook table of Ng '=1 includes all codewords of Ng' =1 from 1 to 8 (rank=1-8), the TPMI codebook table of Ng '=2 includes all codewords of Ng' =2 from 1 to 8 (rank=1-8), the TPMI codebook table of Ng '=4 includes all codewords of Ng' =4 from 1 to 8 (rank=1-8), and the TPMI codebook table of Ng '=8 includes all codewords of Ng' =8 from 1 to 8 (rank=1-8). A joint indication field table, such as precoding information and an antenna port group (Precoding information and number of antenna groups) indication field table, is agreed in the protocol, for example, in a possible manner in the joint indication field table, such as table 4, where in order, the codeword of rank=1 when Ng '=1, the codeword of rank=1 when Ng' =2, the codeword of rank=1 when ng=4 ', the codeword of rank=1 when ng=8', the codeword of rank= …, ng '=1, the codeword of rank=8 when Ng' =2, the codeword of rank=8 when Ng '=4, the codeword of rank=8 when ng=8', and the specific TPMI value in the table needs to be determined according to the 3GPP conference progress. And the terminal equipment determines an index value corresponding to the code word selected by the network equipment and the first antenna port group number corresponding to the code word from a joint indication domain table agreed by the protocol according to the joint indication domain in the received indication information of the network equipment. The terminal equipment determines a fifth TPMI codebook table corresponding to the first antenna port group number from the TPMI codebook table agreed by the protocol, and determines the code word selected by the network equipment from the fifth TPMI codebook table according to the index value corresponding to the code word selected by the network equipment.
In the embodiment of the disclosure, the indication information is sent to the terminal equipment through the network equipment, so that the terminal equipment determines the code word selected by the network equipment and the antenna port group number corresponding to the code word according to the indication information, and the indication problem of the antenna port group number and the code word is solved.
In the embodiments provided in the present disclosure, the method provided in the embodiments of the present disclosure is described from the perspective of the network device and the terminal device, respectively. In order to implement the functions in the method provided by the embodiments of the present disclosure, the network device and the terminal device may include a hardware structure, a software module, and implement the functions in the form of a hardware structure, a software module, or a hardware structure plus a software module. Some of the functions described above may be implemented in a hardware structure, a software module, or a combination of a hardware structure and a software module.
Fig. 11 is a schematic structural diagram of a communication device 110 according to an embodiment of the disclosure. The communication device 110 shown in fig. 11 may include a transceiver module 1101 and a processing module 1102. The transceiver module 1101 may include a transmitting module for implementing a transmitting function and/or a receiving module for implementing a receiving function, and the transceiver module 1101 may implement the transmitting function and/or the receiving function.
The communication device 110 may be a terminal device, a device in a terminal device, or a device that can be used in cooperation with a terminal device. Alternatively, the communication device 110 may be a network device, a device in a network device, or a device that can be used in cooperation with a network device.
The communication apparatus 110 is a network device: a processing module 1102, configured to determine a codeword selected by a network device; the processing module 1102 is further configured to determine a first antenna port group number corresponding to the selected codeword; and the transceiver module 1101 is configured to send indication information to the terminal device according to the first antenna port group number and the selected codeword, where the indication information indicates the network device to select the codeword and the first antenna port group number corresponding to the codeword.
In a possible implementation manner, the transceiver module 1101 is further configured to receive the number of second antenna port groups of the terminal device and the number of antenna ports included in each antenna port group, which are sent by the terminal device; the processing module 1102 is specifically configured to: determining a configurable codeword of the terminal device according to the second antenna port group number of the terminal device; and determining the number of the first antenna port groups corresponding to the code words selected by the network equipment according to the configurable code words of the terminal equipment.
In one possible implementation, the processing module 1102 is specifically configured to: under the condition that the number of the second antenna port group is 1, determining that the configurable code word of the terminal equipment is a code word with the number of the first antenna port group being a first value, wherein the first value is any one of the following values: 1,2,4 and 8; or, in the case that the second antenna port group number is 2, determining that the configurable codeword of the terminal device is a codeword in which the first antenna port group number is a second value, where the second value is any one of the following values: 2,4 and 8; or, in the case that the second antenna port group number is 4, determining that the configurable codeword of the terminal device is a codeword of which the first antenna port group number is a third value, where the third value is any one of the following values: 4 and 8; or, in the case that the second antenna port group number is 8, determining that the configurable codeword of the terminal device is a codeword of which the first antenna port group number is 8.
In one possible implementation, the processing module 1102 is specifically configured to: under the condition that the number of the second antenna port groups is 1, determining that the configurable code word of the terminal equipment is the code word with the number of the first antenna port groups being 1; or under the condition that the number of the second antenna port groups is 2, determining that the configurable code word of the terminal equipment is the code word with the number of the first antenna port groups being 2; or under the condition that the number of the second antenna port groups is 4, determining that the configurable code word of the terminal equipment is the code word with the number of the first antenna port groups being 4; or, in the case that the second antenna port group number is 8, determining that the configurable codeword of the terminal device is a codeword of which the first antenna port group number is 8.
In one implementation, the indication information includes a first indication field and a second indication field, where the first indication field indicates an index value corresponding to a codeword selected by the network device, and the second indication field indicates a number of antenna port groups of the codeword selected by the network device.
In one possible implementation, the length of the second indication field is a fixed bit length or a dynamic bit length.
In one possible implementation, the processing module 1102 is further configured to: determining a first Transmission Precoding Matrix Indicator (TPMI) codebook table corresponding to a first antenna port group number in the case that the first antenna port group number is 1; the first TPMI codebook table is a TPMI codebook table of a full-coherence codeword; determining an index value corresponding to the selected codeword from a first TPMI codebook table; determining a first indication domain according to an index value corresponding to the selected codeword; and determining a second indication domain according to the first antenna port group number. The transceiver module 1101 is specifically configured to: and sending indication information comprising the first indication domain and the second indication domain to the terminal equipment.
In one possible implementation, the processing module 1102 is further configured to: determining a second TPMI codebook table corresponding to the first antenna port group number if the first antenna port group number is 2; the second TPMI codebook table comprises all 4 antenna port full-coherent codewords with Rank from 1 to 4 and a full-zero matrix; determining an index value corresponding to the selected codeword from a second TPMI codebook table; determining a first indication domain according to an index value corresponding to the selected codeword; the first indication domain comprises a first indication subdomain and a second indication subdomain, wherein the first indication subdomain indicates a codeword corresponding to the first antenna port group, and the second indication subdomain indicates a codeword corresponding to the second antenna port group; and determining a second indication domain according to the first antenna port group number. The transceiver module 1101 is specifically configured to: and sending indication information comprising the first indication domain and the second indication domain to the terminal equipment.
In one possible implementation, the processing module 1102 is further configured to: determining a third TPMI codebook table corresponding to the first antenna port group number if the first antenna port group number is 4; the third TPMI codebook table comprises all 2 antenna port full-coherence codewords from 1 to 2 and a full-zero matrix; determining an index value corresponding to the selected codeword from a third TPMI codebook table; determining a first indication domain according to an index value corresponding to the selected codeword; the first indication domain comprises a first indication subdomain, a second indication subdomain, a third indication subdomain and a fourth indication subdomain, wherein the first indication subdomain indicates a codeword corresponding to the first antenna port group, the second indication subdomain indicates a codeword corresponding to the second antenna port group, the third indication subdomain indicates a codeword corresponding to the third antenna port group, and the fourth indication subdomain indicates a codeword corresponding to the fourth antenna port group; and determining a second indication domain according to the first antenna port group number. The transceiver module 1101 is specifically configured to: and sending indication information comprising the first indication domain and the second indication domain to the terminal equipment.
In one possible implementation, the processing module 1102 is further configured to: determining a fourth TPMI codebook table corresponding to the first antenna port group number if the first antenna port group number is 8; the fourth TPMI codebook table is a TPMI codebook table of a non-coherent codeword; determining an index value corresponding to the selected codeword from a fourth TPMI codebook table; determining a first indication domain according to an index value corresponding to the selected codeword; and determining a second indication domain according to the first antenna port group number. The transceiver module 1101 is specifically configured to: and sending indication information comprising the first indication domain and the second indication domain to the terminal equipment.
In one implementation, the processing module 1102 is further configured to: determining a beam index and a co-phase coefficient index under the condition that the number of the first antenna port group is 1; determining a first indication field according to the beam index and the co-phase coefficient index; and determining a second indication domain according to the first antenna port group number. The transceiver module 1101 is specifically configured to: and sending indication information comprising the first indication domain and the second indication domain to the terminal equipment.
In one implementation, the indication information includes a joint indication field, where the joint indication field jointly indicates an index value corresponding to a codeword selected by the network device and a number of antenna port groups of the codeword selected by the network device.
In one possible implementation, the processing module 1102 is further configured to: determining a fifth TPMI codebook table corresponding to the first antenna port group number; wherein, the fifth TPMI codebook table includes all codewords with Rank from 1 to 8; determining an index value corresponding to the selected codeword from a fifth TPMI codebook table; determining a corresponding bit domain mapping index from the joint indication domain table according to the index value corresponding to the selected codeword and the first antenna port group number; the joint indication field is determined from the bit field mapping index. The transceiver module 1101 is further configured to: and sending indication information comprising the joint indication domain to the terminal equipment.
The communication apparatus 110 is a terminal device: the transceiver 1101 is configured to receive indication information sent by a network device, where the indication information indicates a codeword selected by the network device and a first antenna port group number corresponding to the codeword; the processing module 1102 is configured to determine, according to the indication information, a codeword selected by the network device and a first antenna port group number corresponding to the codeword.
In one implementation, the transceiver module 1101 is further configured to: transmitting the number of the second antenna port group of the terminal equipment to the network equipment, wherein the number of the antenna port is contained in each antenna port group; the second antenna port group number and the number of the antenna port contained in each antenna port group are used for indicating the network equipment to determine the first antenna port group number corresponding to the code word selected by the network equipment according to the configurable code word of the terminal equipment.
In one possible implementation manner, the indication information includes a first indication field and a second indication field, where the first indication field indicates an index value corresponding to a codeword selected by the network device, and the second indication field indicates the number of antenna port groups of the codeword selected by the network device.
In one possible implementation, the length of the second indication field is a fixed bit length or a dynamic bit length.
In one possible implementation, the processing module 1102 is specifically configured to: determining an index value corresponding to the codeword selected by the network device according to a first indication domain in the indication information; determining the number of the first antenna port groups corresponding to the code words according to a second indication domain in the indication information; and determining the code word selected by the network equipment according to the index value corresponding to the code word selected by the network equipment and the first antenna port group number corresponding to the code word.
In one possible implementation, the processing module 1102 is specifically configured to: determining a first Transmission Precoding Matrix Indicator (TPMI) codebook table corresponding to a first antenna port group number in the case that the first antenna port group number is 1; the first TPMI codebook table is a TPMI codebook table of a full-coherence codeword; and determining the code word selected by the network equipment from the first TPMI codebook table according to the index value corresponding to the code word selected by the network equipment.
In one possible implementation, the processing module 1102 is specifically configured to: determining a second TPMI codebook table corresponding to the first antenna port group number if the first antenna port group number is 2; the second TPMI codebook table comprises all 4 antenna port full-coherent codewords with Rank from 1 to 4 and a full-zero matrix; and determining the code word selected by the network equipment from the second TPMI codebook table according to the index value corresponding to the code word selected by the network equipment.
In one possible implementation, the processing module 1102 is specifically configured to: determining a third TPMI codebook table corresponding to the first antenna port group number if the first antenna port group number is 4; the third TPMI codebook table comprises all 2 antenna port full-coherence codewords from 1 to 2 and a full-zero matrix; and determining the code word selected by the network equipment from the third TPMI codebook table according to the index value corresponding to the code word selected by the network equipment.
In one possible implementation, the processing module 1102 is specifically configured to: determining a fourth TPMI codebook table corresponding to the first antenna port group number if the first antenna port group number is 8; the fourth TPMI codebook table is a TPMI codebook table of a non-coherent codeword; and determining the code word selected by the network equipment from the fourth TPMI codebook table according to the index value corresponding to the code word selected by the network equipment.
In one implementation, the processing module 1102 is specifically configured to: under the condition that the number of the first antenna port group is 1, determining a beam index and a co-phase coefficient index according to a first indication domain in indication information; determining a codeword selected by the network device according to the beam index and the co-phase coefficient index; and determining the number of the first antenna port groups corresponding to the code words according to the second indication field in the indication information.
In one implementation, the indication information includes a joint indication field, where the joint indication field jointly indicates an index value corresponding to a codeword selected by the network device and a number of antenna port groups of the codeword selected by the network device.
In one possible implementation, the processing module 1102 is specifically configured to: according to the joint indication domain in the indication information, determining an index value corresponding to the code word selected by the network equipment and a first antenna port group number corresponding to the code word from a joint indication domain table; determining a fifth TPMI codebook table corresponding to the first antenna port group number; wherein, the fifth TPMI codebook table includes all codewords with Rank from 1 to 8; and determining the code word selected by the network equipment from the fifth TPMI codebook table according to the index value corresponding to the code word selected by the network equipment.
The specific manner in which the various modules perform the operations in the apparatus of the above embodiments have been described in detail in connection with the embodiments of the method, and will not be described in detail herein.
Referring to fig. 12, fig. 12 is a schematic structural diagram of another communication device 120 according to an embodiment of the disclosure. The communication device 120 may be a network device, a terminal device, a chip system, a processor, or the like that supports the network device to implement the above method, or a chip, a chip system, a processor, or the like that supports the terminal device to implement the above method. The device can be used for realizing the method described in the method embodiment, and can be particularly referred to the description in the method embodiment.
The communication device 120 may include one or more processors 1201. The processor 1201 may be a general purpose processor, a special purpose processor, or the like. For example, a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processor may be used to control communication devices (e.g., base stations, baseband chips, terminal equipment chips, DUs or CUs, etc.), execute computer programs, and process data of the computer programs.
Optionally, the communication device 120 may further include one or more memories 1202, on which a computer program 1204 may be stored, and the processor 1201 executes the computer program 1204, so that the communication device 120 performs the method described in the above method embodiments. Optionally, the memory 1202 may also store data. The communication device 120 and the memory 1202 may be provided separately or may be integrated.
Optionally, the communication device 120 may further include a transceiver 1205, an antenna 1206. The transceiver 1205 may be referred to as a transceiver unit, transceiver circuitry, or the like, for implementing a transceiver function. The transceiver 1205 may include a receiver, which may be referred to as a receiver or a receiving circuit, etc., for implementing a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, etc., for implementing a transmitting function.
Optionally, one or more interface circuits 1207 may also be included in the communication device 120. The interface circuit 1207 is configured to receive code instructions and transmit the code instructions to the processor 1201. The processor 1201 executes the code instructions to cause the communication device 120 to perform the method described in the method embodiments described above.
The communication apparatus 120 is a network device: processor 1201 is configured to perform steps 201, 202, and 203 in fig. 2; step 301, step 302, step 303 and step 304 in fig. 3 are performed; step 401, step 402, step 403, and step 404 in fig. 4 are performed; step 501, step 502, step 503 and step 504 in fig. 5 are performed; step 601, step 602, step 603, and step 604 in fig. 6 are performed; step 801, step 802, and step 803 in fig. 8 are performed; or step 901, step 902, step 903, and step 904 in fig. 9. The transceiver 1205 is configured to perform step 305 in fig. 3; step 405 in fig. 4 is performed; step 505 in fig. 5 is performed; step 605 in fig. 6 is performed; step 804 in fig. 8 is performed; or performs step 905 of fig. 9.
The communication device 120 is a terminal apparatus: the transceiver 1205 is used to perform step 1001 in fig. 10. The processor 1201 is for performing step 1002 in fig. 10.
In one implementation, a transceiver for implementing the receive and transmit functions may be included in the processor 1201. For example, the transceiver may be a transceiver circuit, or an interface circuit. The transceiver circuitry, interface or interface circuitry for implementing the receive and transmit functions may be separate or may be integrated. The transceiver circuit, interface or interface circuit may be used for reading and writing codes/data, or the transceiver circuit, interface or interface circuit may be used for transmitting or transferring signals.
In one implementation, the processor 1201 may have a computer program stored thereon, which, when executed on the processor 1201, may cause the communication apparatus 120 to perform the method described in the method embodiments above. The computer program may be solidified in the processor 1201, in which case the processor 1201 may be implemented in hardware.
In one implementation, the communication device 120 may include circuitry that may implement the functions of transmitting or receiving or communicating in the foregoing method embodiments. The processors and transceivers described in this disclosure may be implemented on integrated circuits (integrated circuit, ICs), analog ICs, radio frequency integrated circuits RFICs, mixed signal ICs, application specific integrated circuits (application specific integrated circuit, ASIC), printed circuit boards (printed circuit board, PCB), electronic devices, and the like. The processor and transceiver may also be fabricated using a variety of IC process technologies such as complementary metal oxide semiconductor (complementary metal oxide semiconductor, CMOS), N-type metal oxide semiconductor (NMOS), P-type metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (bipolar junction transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
The communication apparatus described in the above embodiment may be a network device or a terminal device, but the scope of the communication apparatus described in the present disclosure is not limited thereto, and the structure of the communication apparatus may not be limited by fig. 12. The communication means may be a stand-alone device or may be part of a larger device. For example, the communication device may be:
(1) A stand-alone integrated circuit IC, or chip, or a system-on-a-chip or subsystem;
(2) A set of one or more ICs, optionally including storage means for storing data, a computer program;
(3) An ASIC, such as a Modem (Modem);
(4) Modules that may be embedded within other devices;
(5) A receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handset, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligent device, and the like;
(6) Others, and so on.
For the case where the communication device may be a chip or a chip system, reference may be made to the schematic structural diagram of the chip shown in fig. 13. The chip shown in fig. 13 includes a processor 1301 and an interface 1302. Wherein the number of processors 1301 may be one or more, and the number of interfaces 1302 may be a plurality.
For the case where the chip is used to implement the functions of the network device in the embodiments of the present disclosure:
a processor 1301 configured to determine a codeword selected by the network device; processor 1301 is further configured to determine a first antenna port group number corresponding to the selected codeword; and an interface 1302, configured to send indication information to the terminal device according to the first antenna port group number and the selected codeword, where the indication information indicates the network device to select the codeword and the first antenna port group number corresponding to the codeword.
In a possible implementation manner, the interface 1302 is further configured to receive a second antenna port group number of the terminal device and a number of an antenna port included in each antenna port group, where the second antenna port group number is sent by the terminal device; processor 1301 is specifically configured to: determining a configurable codeword of the terminal device according to the second antenna port group number of the terminal device; and determining the number of the first antenna port groups corresponding to the code words selected by the network equipment according to the configurable code words of the terminal equipment.
In one possible implementation, the processor 1301 is specifically configured to: under the condition that the number of the second antenna port group is 1, determining that the configurable code word of the terminal equipment is a code word with the number of the first antenna port group being a first value, wherein the first value is any one of the following values: 1,2,4 and 8; or, in the case that the second antenna port group number is 2, determining that the configurable codeword of the terminal device is a codeword in which the first antenna port group number is a second value, where the second value is any one of the following values: 2,4 and 8; or, in the case that the second antenna port group number is 4, determining that the configurable codeword of the terminal device is a codeword of which the first antenna port group number is a third value, where the third value is any one of the following values: 4 and 8; or, in the case that the second antenna port group number is 8, determining that the configurable codeword of the terminal device is a codeword of which the first antenna port group number is 8.
In one possible implementation, the processor 1301 is specifically configured to: under the condition that the number of the second antenna port groups is 1, determining that the configurable code word of the terminal equipment is the code word with the number of the first antenna port groups being 1; or under the condition that the number of the second antenna port groups is 2, determining that the configurable code word of the terminal equipment is the code word with the number of the first antenna port groups being 2; or under the condition that the number of the second antenna port groups is 4, determining that the configurable code word of the terminal equipment is the code word with the number of the first antenna port groups being 4; or, in the case that the second antenna port group number is 8, determining that the configurable codeword of the terminal device is a codeword of which the first antenna port group number is 8.
In one implementation, the indication information includes a first indication field and a second indication field, where the first indication field indicates an index value corresponding to a codeword selected by the network device, and the second indication field indicates a number of antenna port groups of the codeword selected by the network device.
In one possible implementation, the length of the second indication field is a fixed bit length or a dynamic bit length.
In one possible implementation, the processor 1301 is further configured to: determining a first Transmission Precoding Matrix Indicator (TPMI) codebook table corresponding to a first antenna port group number in the case that the first antenna port group number is 1; the first TPMI codebook table is a TPMI codebook table of a full-coherence codeword; determining an index value corresponding to the selected codeword from a first TPMI codebook table; determining a first indication domain according to an index value corresponding to the selected codeword; and determining a second indication domain according to the first antenna port group number. The interface 1302 is specifically configured to: and sending indication information comprising the first indication domain and the second indication domain to the terminal equipment.
In one possible implementation, the processor 1301 is further configured to: determining a second TPMI codebook table corresponding to the first antenna port group number if the first antenna port group number is 2; the second TPMI codebook table comprises all 4 antenna port full-coherent codewords with Rank from 1 to 4 and a full-zero matrix; determining an index value corresponding to the selected codeword from a second TPMI codebook table; determining a first indication domain according to an index value corresponding to the selected codeword; the first indication domain comprises a first indication subdomain and a second indication subdomain, wherein the first indication subdomain indicates a codeword corresponding to the first antenna port group, and the second indication subdomain indicates a codeword corresponding to the second antenna port group; and determining a second indication domain according to the first antenna port group number. The interface 1302 is specifically configured to: and sending indication information comprising the first indication domain and the second indication domain to the terminal equipment.
In one possible implementation, the processor 1301 is further configured to: determining a third TPMI codebook table corresponding to the first antenna port group number if the first antenna port group number is 4; the third TPMI codebook table comprises all 2 antenna port full-coherence codewords from 1 to 2 and a full-zero matrix; determining an index value corresponding to the selected codeword from a third TPMI codebook table; determining a first indication domain according to an index value corresponding to the selected codeword; the first indication domain comprises a first indication subdomain, a second indication subdomain, a third indication subdomain and a fourth indication subdomain, wherein the first indication subdomain indicates a codeword corresponding to the first antenna port group, the second indication subdomain indicates a codeword corresponding to the second antenna port group, the third indication subdomain indicates a codeword corresponding to the third antenna port group, and the fourth indication subdomain indicates a codeword corresponding to the fourth antenna port group; and determining a second indication domain according to the first antenna port group number. The interface 1302 is specifically configured to: and sending indication information comprising the first indication domain and the second indication domain to the terminal equipment.
In one possible implementation, the processor 1301 is further configured to: determining a fourth TPMI codebook table corresponding to the first antenna port group number if the first antenna port group number is 8; the fourth TPMI codebook table is a TPMI codebook table of a non-coherent codeword; determining an index value corresponding to the selected codeword from a fourth TPMI codebook table; determining a first indication domain according to an index value corresponding to the selected codeword; and determining a second indication domain according to the first antenna port group number. The interface 1302 is specifically configured to: and sending indication information comprising the first indication domain and the second indication domain to the terminal equipment.
In one implementation, processor 1301 is further configured to: determining a beam index and a co-phase coefficient index under the condition that the number of the first antenna port group is 1; determining a first indication field according to the beam index and the co-phase coefficient index; and determining a second indication domain according to the first antenna port group number. The interface 1302 is specifically configured to: and sending indication information comprising the first indication domain and the second indication domain to the terminal equipment.
In one implementation, the indication information includes a joint indication field, where the joint indication field jointly indicates an index value corresponding to a codeword selected by the network device and a number of antenna port groups of the codeword selected by the network device.
In one possible implementation, the processor 1301 is further configured to: determining a fifth TPMI codebook table corresponding to the first antenna port group number; wherein, the fifth TPMI codebook table includes all codewords with Rank from 1 to 8; determining an index value corresponding to the selected codeword from a fifth TPMI codebook table; determining a corresponding bit domain mapping index from the joint indication domain table according to the index value corresponding to the selected codeword and the first antenna port group number; the joint indication field is determined from the bit field mapping index. Interface 1302 is also for: and sending indication information comprising the joint indication domain to the terminal equipment.
For the case where the chip is used to implement the functions of the terminal device in the embodiments of the present disclosure:
the interface 1302 is configured to receive indication information sent by a network device, where the indication information indicates a codeword selected by the network device and a first antenna port group number corresponding to the codeword; processor 1301 is configured to determine, according to the indication information, a codeword selected by the network device and a first antenna port group number corresponding to the codeword.
In one implementation, interface 1302 is also to: transmitting the number of the second antenna port group of the terminal equipment to the network equipment, wherein the number of the antenna port is contained in each antenna port group; the second antenna port group number and the number of the antenna port contained in each antenna port group are used for indicating the network equipment to determine the first antenna port group number corresponding to the code word selected by the network equipment according to the configurable code word of the terminal equipment.
In one possible implementation manner, the indication information includes a first indication field and a second indication field, where the first indication field indicates an index value corresponding to a codeword selected by the network device, and the second indication field indicates the number of antenna port groups of the codeword selected by the network device.
In one possible implementation, the length of the second indication field is a fixed bit length or a dynamic bit length.
In one possible implementation, the processor 1301 is specifically configured to: determining an index value corresponding to the codeword selected by the network device according to a first indication domain in the indication information; determining the number of the first antenna port groups corresponding to the code words according to a second indication domain in the indication information; and determining the code word selected by the network equipment according to the index value corresponding to the code word selected by the network equipment and the first antenna port group number corresponding to the code word.
In one possible implementation, the processor 1301 is specifically configured to: determining a first Transmission Precoding Matrix Indicator (TPMI) codebook table corresponding to a first antenna port group number in the case that the first antenna port group number is 1; the first TPMI codebook table is a TPMI codebook table of a full-coherence codeword; and determining the code word selected by the network equipment from the first TPMI codebook table according to the index value corresponding to the code word selected by the network equipment.
In one possible implementation, the processor 1301 is specifically configured to: determining a second TPMI codebook table corresponding to the first antenna port group number if the first antenna port group number is 2; the second TPMI codebook table comprises all 4 antenna port full-coherent codewords with Rank from 1 to 4 and a full-zero matrix; and determining the code word selected by the network equipment from the second TPMI codebook table according to the index value corresponding to the code word selected by the network equipment.
In one possible implementation, the processor 1301 is specifically configured to: determining a third TPMI codebook table corresponding to the first antenna port group number if the first antenna port group number is 4; the third TPMI codebook table comprises all 2 antenna port full-coherence codewords from 1 to 2 and a full-zero matrix; and determining the code word selected by the network equipment from the third TPMI codebook table according to the index value corresponding to the code word selected by the network equipment.
In one possible implementation, the processor 1301 is specifically configured to: determining a fourth TPMI codebook table corresponding to the first antenna port group number if the first antenna port group number is 8; the fourth TPMI codebook table is a TPMI codebook table of a non-coherent codeword; and determining the code word selected by the network equipment from the fourth TPMI codebook table according to the index value corresponding to the code word selected by the network equipment.
In one implementation, processor 1301 is specifically configured to: under the condition that the number of the first antenna port group is 1, determining a beam index and a co-phase coefficient index according to a first indication domain in indication information; determining a codeword selected by the network device according to the beam index and the co-phase coefficient index; and determining the number of the first antenna port groups corresponding to the code words according to the second indication field in the indication information.
In one implementation, the indication information includes a joint indication field, where the joint indication field jointly indicates an index value corresponding to a codeword selected by the network device and a number of antenna port groups of the codeword selected by the network device.
In one possible implementation, the processor 1301 is specifically configured to: according to the joint indication domain in the indication information, determining an index value corresponding to the code word selected by the network equipment and a first antenna port group number corresponding to the code word from a joint indication domain table; determining a fifth TPMI codebook table corresponding to the first antenna port group number; wherein, the fifth TPMI codebook table includes all codewords with Rank from 1 to 8; and determining the code word selected by the network equipment from the fifth TPMI codebook table according to the index value corresponding to the code word selected by the network equipment.
Optionally, the chip further comprises a memory 1303, the memory 1303 being configured to store necessary computer programs and data.
Those of skill in the art will further appreciate that the various illustrative logical blocks (illustrative logical block) and steps (step) described in connection with the embodiments of the disclosure may be implemented by electronic hardware, computer software, or combinations of both. Whether such functionality is implemented as hardware or software depends upon the particular application and design requirements of the overall system. Those skilled in the art may implement the described functionality in varying ways for each particular application, but such implementation is not to be understood as beyond the scope of the embodiments of the present disclosure.
The embodiment of the present disclosure also provides a communication system, which includes the communication apparatus as a terminal device and the communication apparatus as a network device in the embodiment of fig. 11, or includes the communication apparatus as a terminal device and the communication apparatus as a network device in the embodiment of fig. 12.
The present disclosure also provides a readable storage medium having instructions stored thereon which, when executed by a computer, perform the functions of any of the method embodiments described above.
The present disclosure also provides a computer program product which, when executed by a computer, performs the functions of any of the method embodiments described above.
In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product comprises one or more computer programs. When the computer program is loaded and executed on a computer, the flow or functions described in accordance with the embodiments of the present disclosure are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer program may be stored in or transmitted from one computer readable storage medium to another, for example, by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means from one website, computer, server, or data center. The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.
Those of ordinary skill in the art will appreciate that: the various numbers of first, second, etc. referred to in this disclosure are merely for ease of description and are not intended to limit the scope of embodiments of this disclosure, nor to indicate sequencing.
At least one of the present disclosure may also be described as one or more, a plurality may be two, three, four or more, and the present disclosure is not limited. In the embodiment of the disclosure, for a technical feature, the technical features in the technical feature are distinguished by "first", "second", "third", "a", "B", "C", and "D", and the technical features described by "first", "second", "third", "a", "B", "C", and "D" are not in sequence or in order of magnitude.
The correspondence relationships shown in the tables in the present disclosure may be configured or predefined. The values of the information in each table are merely examples, and may be configured as other values, and the present disclosure is not limited thereto. In the case of the correspondence between the configuration information and each parameter, it is not necessarily required to configure all the correspondence shown in each table. For example, in the table in the present disclosure, the correspondence shown by some rows may not be configured. For another example, appropriate morphing adjustments, e.g., splitting, merging, etc., may be made based on the tables described above. The names of the parameters indicated in the tables may be other names which are understood by the communication device, and the values or expressions of the parameters may be other values or expressions which are understood by the communication device. When the tables are implemented, other data structures may be used, for example, an array, a queue, a container, a stack, a linear table, a pointer, a linked list, a tree, a graph, a structure, a class, a heap, a hash table, or a hash table.
Predefined in this disclosure may be understood as defining, predefining, storing, pre-negotiating, pre-configuring, curing, or pre-sintering.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.
The foregoing is merely specific embodiments of the disclosure, but the protection scope of the disclosure is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the disclosure, and it is intended to cover the scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.
Claims (31)
1. A method of indication, the method performed by a network device, the method comprising:
determining a codeword selected by the network device;
determining the number of first antenna port groups corresponding to the selected code word;
and sending indication information to terminal equipment according to the first antenna port group number and the selected code word, wherein the indication information indicates the code word selected by the network equipment and the first antenna port group number corresponding to the code word.
2. The method of claim 1, wherein the determining the first antenna port group number corresponding to the selected codeword comprises:
receiving the number of the second antenna port groups of the terminal equipment, which is sent by the terminal equipment, and the number of the antenna ports contained in each antenna port group;
determining a configurable codeword of the terminal device according to the second antenna port group number of the terminal device;
and determining the number of the first antenna port group corresponding to the code word selected by the network equipment according to the configurable code word of the terminal equipment.
3. The method of claim 2, wherein the determining the configurable codeword for the terminal device based on the second number of antenna port groups for the terminal device comprises:
And under the condition that the number of the second antenna port group is 1, determining that the configurable code word of the terminal equipment is the code word with the first antenna port group number of a first value, wherein the first value is any one of the following values: 1,2,4 and 8; or,
and under the condition that the number of the second antenna port group is 2, determining that the configurable code word of the terminal equipment is the code word with the number of the first antenna port group being a second numerical value, wherein the second numerical value is any one of the following numerical values: 2,4 and 8; or,
and under the condition that the number of the second antenna port group is 4, determining that the configurable code word of the terminal equipment is a code word with the number of the first antenna port group being a third value, wherein the third value is any one of the following values: 4 and 8; or,
and under the condition that the number of the second antenna port groups is 8, determining that the configurable code word of the terminal equipment is the code word with the number of the first antenna port groups being 8.
4. The method of claim 2, wherein the determining the configurable codeword for the terminal device based on the second number of antenna port groups for the terminal device comprises:
under the condition that the number of the second antenna port groups is 1, determining that the configurable code word of the terminal equipment is the code word with the number of the first antenna port groups being 1; or,
Under the condition that the number of the second antenna port groups is 2, determining that the configurable code word of the terminal equipment is the code word with the number of the first antenna port groups being 2; or,
determining that the configurable code word of the terminal equipment is the code word with the number of the first antenna port groups being 4 under the condition that the number of the second antenna port groups is 4; or,
and under the condition that the number of the second antenna port groups is 8, determining that the configurable code word of the terminal equipment is the code word with the number of the first antenna port groups being 8.
5. The method of claim 1, wherein the indication information comprises a first indication field and a second indication field, wherein the first indication field indicates an index value corresponding to a codeword selected by the network device, and the second indication field indicates a number of antenna port groups of the codeword selected by the network device.
6. The method of claim 5, wherein the length of the second indication field is a fixed bit length.
7. The method of claim 5, wherein the sending indication information to the terminal device according to the first antenna port group number and the selected codeword comprises:
determining a first Transmission Precoding Matrix Indicator (TPMI) codebook table corresponding to the first antenna port group number if the first antenna port group number is 1; wherein, the first TPMI codebook table is a TPMI codebook table of a full coherent codeword;
Determining an index value corresponding to the selected codeword from the first TPMI codebook table;
determining the first indication field according to an index value corresponding to the selected codeword;
determining the second indication domain according to the first antenna port group number;
and sending the indication information comprising the first indication domain and the second indication domain to the terminal equipment.
8. The method of claim 5, wherein the sending indication information to the terminal device according to the first antenna port group number and the selected codeword comprises:
determining a second TPMI codebook table corresponding to the first antenna port group number if the first antenna port group number is 2; the second TPMI codebook table includes all 4 antenna port full-coherent codewords with Rank from 1 to 4 and a full-zero matrix;
determining an index value corresponding to the selected codeword from the second TPMI codebook table;
determining the first indication field according to an index value corresponding to the selected codeword; the first indication domain comprises a first indication subdomain and a second indication subdomain, wherein the first indication subdomain indicates a codeword corresponding to a first antenna port group, and the second indication subdomain indicates a codeword corresponding to a second antenna port group;
Determining the second indication domain according to the first antenna port group number;
and sending the indication information comprising the first indication domain and the second indication domain to the terminal equipment.
9. The method of claim 5, wherein the sending indication information to the terminal device according to the first antenna port group number and the selected codeword comprises:
determining a third TPMI codebook table corresponding to the first antenna port group number if the first antenna port group number is 4; the third TPMI codebook table includes all 2 antenna ports full-coherent codewords from 1 to 2 and a full-zero matrix;
determining an index value corresponding to the selected codeword from the third TPMI codebook table;
determining the first indication field according to an index value corresponding to the selected codeword; the first indication domain comprises a first indication subdomain, a second indication subdomain, a third indication subdomain and a fourth indication subdomain, wherein the first indication subdomain indicates codewords corresponding to a first antenna port group, the second indication subdomain indicates codewords corresponding to a second antenna port group, the third indication subdomain indicates codewords corresponding to a third antenna port group, and the fourth indication subdomain indicates codewords corresponding to a fourth antenna port group;
Determining the second indication domain according to the first antenna port group number;
and sending the indication information comprising the first indication domain and the second indication domain to the terminal equipment.
10. The method of claim 5, wherein the sending indication information to the terminal device according to the first antenna port group number and the selected codeword comprises:
determining a fourth TPMI codebook table corresponding to the first antenna port group number if the first antenna port group number is 8; wherein the fourth TPMI codebook table is a TPMI codebook table of a non-coherent codeword;
determining an index value corresponding to the selected codeword from the fourth TPMI codebook table;
determining the first indication field according to an index value corresponding to the selected codeword;
determining the second indication domain according to the first antenna port group number;
and sending the indication information comprising the first indication domain and the second indication domain to the terminal equipment.
11. The method of claim 1, wherein the sending indication information to the terminal device according to the first antenna port group number and the selected codeword comprises:
Determining a beam index and a co-phase coefficient index under the condition that the first antenna port group number is 1;
determining a first indication field according to the beam index and the co-phasing coefficient index;
determining a second indication domain according to the first antenna port group number;
and sending the indication information comprising the first indication domain and the second indication domain to the terminal equipment.
12. The method of claim 1, wherein the indication information comprises a joint indication field that jointly indicates an index value corresponding to the codeword selected by the network device and a number of antenna port groups of the codeword selected by the network device.
13. The method of claim 12, wherein said transmitting indication information to a terminal device based on said first antenna port group number and said selected codeword comprises:
determining a fifth TPMI codebook table corresponding to the first antenna port group number; wherein, the fifth TPMI codebook table includes all codewords from Rank 1 to 8;
determining an index value corresponding to the selected codeword from the fifth TPMI codebook table;
determining a corresponding bit domain mapping index from a joint indication domain table according to the index value corresponding to the selected codeword and the first antenna port group number;
Determining the joint indication domain according to the bit domain mapping index;
and sending the indication information comprising the joint indication domain to the terminal equipment.
14. A method of determining, the method being performed by a terminal device, the method comprising:
receiving indication information sent by network equipment, wherein the indication information indicates a codeword selected by the network equipment and a first antenna port group number corresponding to the codeword;
and determining the code word selected by the network equipment and the first antenna port group number corresponding to the code word according to the indication information.
15. The method of claim 14, wherein the method further comprises:
transmitting the number of the second antenna port group of the terminal device to the network device, and the serial number of the antenna port contained in each antenna port group; the number of the second antenna port groups and the number of the antenna ports included in each antenna port group are used for indicating the network equipment to determine the number of the first antenna port groups corresponding to the code word selected by the network equipment according to the configurable code word of the terminal equipment.
16. The method according to claim 14 or 15, wherein the indication information comprises a first indication field and a second indication field, wherein the first indication field indicates an index value corresponding to a codeword selected by the network device, and the second indication field indicates a number of antenna port groups of the codeword selected by the network device.
17. The method of claim 16, wherein the length of the second indication field is a fixed bit length or a dynamic bit length.
18. The method of claim 16, wherein determining, according to the indication information, the codeword selected by the network device and the first antenna port group number corresponding to the codeword includes:
determining an index value corresponding to the codeword selected by the network device according to a first indication field in the indication information;
determining the number of the first antenna port groups corresponding to the code word according to the second indication domain in the indication information;
and determining the code word selected by the network equipment according to the index value corresponding to the code word selected by the network equipment and the first antenna port group number corresponding to the code word.
19. The method of claim 18, wherein the determining the codeword selected by the network device based on the index value corresponding to the codeword selected by the network device and the first antenna port group number corresponding to the codeword comprises:
determining a first Transmission Precoding Matrix Indicator (TPMI) codebook table corresponding to the first antenna port group number if the first antenna port group number is 1; wherein, the first TPMI codebook table is a TPMI codebook table of a full coherent codeword;
And determining the code word selected by the network equipment from the first TPMI codebook table according to the index value corresponding to the code word selected by the network equipment.
20. The method of claim 18, wherein the determining the codeword selected by the network device based on the index value corresponding to the codeword selected by the network device and the first antenna port group number corresponding to the codeword comprises:
determining a second TPMI codebook table corresponding to the first antenna port group number if the first antenna port group number is 2; the second TPMI codebook table includes all 4 antenna port full-coherent codewords with Rank from 1 to 4 and a full-zero matrix;
and determining the code word selected by the network equipment from the second TPMI codebook table according to the index value corresponding to the code word selected by the network equipment.
21. The method of claim 18, wherein the determining the codeword selected by the network device based on the index value corresponding to the codeword selected by the network device and the first antenna port group number corresponding to the codeword comprises:
determining a third TPMI codebook table corresponding to the first antenna port group number if the first antenna port group number is 4; the third TPMI codebook table includes all 2 antenna ports full-coherent codewords from 1 to 2 and a full-zero matrix;
And determining the code word selected by the network equipment from the third TPMI codebook table according to the index value corresponding to the code word selected by the network equipment.
22. The method of claim 18, wherein the determining the codeword selected by the network device based on the index value corresponding to the codeword selected by the network device and the first antenna port group number corresponding to the codeword comprises:
determining a fourth TPMI codebook table corresponding to the first antenna port group number if the first antenna port group number is 8; wherein the fourth TPMI codebook table is a TPMI codebook table of a non-coherent codeword;
and determining the code word selected by the network equipment from the fourth TPMI codebook table according to the index value corresponding to the code word selected by the network equipment.
23. The method of claim 14, wherein determining, according to the indication information, the codeword selected by the network device and the first antenna port group number corresponding to the codeword includes:
under the condition that the number of the first antenna port groups is 1, determining a beam index and a co-phase coefficient index according to a first indication domain in the indication information;
Determining a codeword selected by the network device according to the beam index and the co-phase coefficient index;
and determining the number of the first antenna port groups corresponding to the code words according to the second indication field in the indication information.
24. The method of claim 14, wherein the indication information comprises a joint indication field that jointly indicates an index value corresponding to the codeword selected by the network device and a number of antenna port groups of the codeword selected by the network device.
25. The method of claim 24, wherein determining, according to the indication information, the codeword selected by the network device and the first antenna port group number corresponding to the codeword includes:
according to the joint indication domain in the indication information, determining an index value corresponding to a code word selected by the network equipment and a first antenna port group number corresponding to the code word from a joint indication domain table;
determining a fifth TPMI codebook table corresponding to the first antenna port group number; wherein, the fifth TPMI codebook table includes all codewords from Rank 1 to 8;
and determining the code word selected by the network equipment from the fifth TPMI codebook table according to the index value corresponding to the code word selected by the network equipment.
26. A communication device, comprising:
the processing module is used for determining the code word selected by the network equipment;
the processing module is further configured to determine a first antenna port group number corresponding to the selected codeword;
and the receiving and transmitting module is used for transmitting indication information to the terminal equipment according to the first antenna port group number and the selected code word, wherein the indication information indicates the code word selected by the network equipment and the first antenna port group number corresponding to the code word.
27. A communication device, comprising:
the receiving and transmitting module is used for receiving indication information sent by the network equipment, wherein the indication information indicates a code word selected by the network equipment and a first antenna port group number corresponding to the code word;
and the processing module is used for determining the code word selected by the network equipment and the first antenna port group number corresponding to the code word according to the indication information.
28. A communication device, characterized in that the device comprises a processor and a memory, the memory having stored therein a computer program, the processor executing the computer program stored in the memory to cause the device to perform the method according to any of claims 1 to 13.
29. A communication device, characterized in that the device comprises a processor and a memory, the memory having stored therein a computer program, the processor executing the computer program stored in the memory to cause the device to perform the method of any of claims 14 to 25.
30. A computer readable storage medium storing instructions which, when executed, cause a method as claimed in any one of claims 1 to 13 to be implemented.
31. A computer readable storage medium storing instructions which, when executed, cause a method as claimed in any one of claims 14 to 25 to be implemented.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2023/076621 WO2024168762A1 (en) | 2023-02-16 | 2023-02-16 | Indication method, determination method, and apparatus |
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| CN116349154A true CN116349154A (en) | 2023-06-27 |
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| CN202380008307.3A Pending CN116349154A (en) | 2023-02-16 | 2023-02-16 | Indication method, determination method and device thereof |
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| WO (1) | WO2024168762A1 (en) |
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| CN113965231A (en) * | 2017-03-24 | 2022-01-21 | 华为技术有限公司 | Information transmission method and equipment |
| CN112615654B (en) * | 2019-10-04 | 2024-08-13 | 英特尔公司 | Apparatus and method for UE capability reporting for full power uplink transmission |
| CN112751598B (en) * | 2019-10-31 | 2022-11-11 | 华为技术有限公司 | Method for processing precoding matrix and communication device |
| WO2021184336A1 (en) * | 2020-03-20 | 2021-09-23 | Qualcomm Incorporated | Configuration for phase tracking reference signal ports to enable uplink transmission with multiple codewords |
| US20230037090A1 (en) * | 2021-09-24 | 2023-02-02 | Intel Corporation | Per-panel power control operation for uplink in 5g systems |
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- 2023-02-16 WO PCT/CN2023/076621 patent/WO2024168762A1/en unknown
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