Abstract
A method for generating a codebook and a method and an apparatus for data transmission are provided. The method includes: receiving a label of a codeword sent by a User Equipment (UE); selecting the codeword identified by the label from the codebook for eight-antenna; and coding data to be sent by using the codeword. The codebook for eight-antenna includes at least one rank-8 codeword for eight-antenna. The rank-8 codeword for eight-antenna is generated by multiplying an inverse matrix of a rotation matrix for eight-antenna with an eight-dimensional matrix formed by rank-4 codewords for four-antenna; or generated by extending rank-4 codewords for eight-antenna where the rank-4 codeword for eight-antenna is generated according to codewords for four-antenna. Therefore the codeword in the codebook for eight-antenna is applicable to scenarios including dual-polarization strong correlation dual-polarization weak correlation single-polarization strong correlation and single-polarization weak correlation etc.
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Technologies



Product


Use Cases

Services

Claim
1. A base station apparatus, comprising
a storage unit configured to store a codebook for an eight-antenna configuration, the codebook for the eight-antenna configuration comprising at least one rank-8 codeword for the eight-antenna configuration, the rank-8 codeword for the eight-antenna configuration being generated by extending rank-4 codewords for the eight-antenna configuration;
a receiver configured to receive a label of a codeword from a user equipment (UE);
a searching unit configured to select the codeword identified by the label from the codebook for the eight-antenna configuration;
a coding unit configured to code data to be sent using the codeword selected by the searching unit; and
a transmitter configured to send the coded data,
wherein each rank-4 codeword for the eight-antenna configuration is generated by creating a matrix by multiplying the rank-4 codeword for a four-antenna configuration with a diagonal matrix and concatenating the rank-4 codeword for the four-antenna configuration and the matrix.', 'a storage unit configured to store a codebook for an eight-antenna configuration, the codebook for the eight-antenna configuration comprising at least one rank-8 codeword for the eight-antenna configuration, the rank-8 codeword for the eight-antenna configuration being generated by extending rank-4 codewords for the eight-antenna configuration;', 'a receiver configured to receive a label of a codeword from a user equipment (UE);', 'a searching unit configured to select the codeword identified by the label from the codebook for the eight-antenna configuration;', 'a coding unit configured to code data to be sent using the codeword selected by the searching unit; and', 'a transmitter configured to send the coded data,', 'wherein each rank-4 codeword for the eight-antenna configuration is generated by creating a matrix by multiplying the rank-4 codeword for a four-antenna configuration with a diagonal matrix and concatenating the rank-4 codeword for the four-antenna configuration and the matrix.
2. The base station apparatus according to claim 1, wherein the rank-8 codeword for the eight-antenna configuration is generated by forming a first four columns of the rank-8 codeword for the eight-antenna configuration with a first rank-4 codeword for the eight-antenna configuration and forming a remaining four columns of the rank-8 codeword for the eight-antenna configuration with a second rank-4 codeword for the eight-antenna configuration.
3. The base station apparatus according to claim 1, wherein the rank-8 codeword for the eight-antenna configuration is generated by forming a first four columns of the rank-8 codeword for the eight-antenna configuration with the rank-4 codeword for the eight-antenna configuration, and forming a remaining four columns with a negative value of the rank-four codeword for the eight-antenna configuration.
4. A base station apparatus, comprising
a storage unit configured to store a codebook for an eight-antenna configuration, the codebook for the eight-antenna configuration comprising at least one rank-8 codeword for the eight-antenna configuration, the rank-8 codeword for the eight-antenna configuration being generated by extending rank-4 codewords for the eight-antenna configuration;
a receiver configured to receive a label of a codeword from a user equipment (UE);
a searching unit configured to select the codeword identified by the label from the codebook for the eight-antenna configuration;
a coding unit configured to code data to be sent using the codeword selected by the searching unit; and
a transmitter configured to send the coded data,
wherein each rank-4 codeword for the eight-antenna configuration is generated by creating a matrix by multiplying the rank-4 codeword for a four-antenna configuration with a diagonal matrix and concatenating a second rank-4 codeword for the four-antenna configuration and the matrix.', 'a storage unit configured to store a codebook for an eight-antenna configuration, the codebook for the eight-antenna configuration comprising at least one rank-8 codeword for the eight-antenna configuration, the rank-8 codeword for the eight-antenna configuration being generated by extending rank-4 codewords for the eight-antenna configuration;', 'a receiver configured to receive a label of a codeword from a user equipment (UE);', 'a searching unit configured to select the codeword identified by the label from the codebook for the eight-antenna configuration;', 'a coding unit configured to code data to be sent using the codeword selected by the searching unit; and', 'a transmitter configured to send the coded data,', 'wherein each rank-4 codeword for the eight-antenna configuration is generated by creating a matrix by multiplying the rank-4 codeword for a four-antenna configuration with a diagonal matrix and concatenating a second rank-4 codeword for the four-antenna configuration and the matrix.
5. The base station apparatus according to claim 4, wherein the rank-8 codeword for the eight-antenna configuration is generated by forming a first four columns of the rank-8 codeword for the eight-antenna configuration with a first rank-4 codeword for the eight-antenna configuration and forming a remaining four columns of the rank-8 codeword for the eight-antenna configuration with a second rank-4 codeword for the eight-antenna configuration.
6. The base station apparatus according to claim 4, wherein the rank-8 codeword for the eight-antenna configuration is generated by forming a first four columns of the rank-8 codeword for the eight-antenna configuration with the rank-4 codeword for the eight-antenna configuration, and forming a remaining four columns with a negative value of the rank-four codeword for the eight-antenna configuration.
7. An apparatus for generating a codebook in a communication system, comprises:
a storage unit, configured to store instructions for generating a codebook, the codebook comprises at least one rank-8 codeword for an eight-antenna configuration, the rank-8 codeword for the eight-antenna configuration being generated by extending a rank-4 codeword for the eight-antenna configuration, wherein the rank-4 codeword for the eight-antenna configuration is generated by creating a matrix by multiplying a rank-4 codeword for a four-antenna configuration with a diagonal matrix, and concatenating the rank-4 codeword for the four-antenna configuration and the matrix; and
a processor coupled to the storage unit, configured to execute the instructions retained in the storage unit.', 'a storage unit, configured to store instructions for generating a codebook, the codebook comprises at least one rank-8 codeword for an eight-antenna configuration, the rank-8 codeword for the eight-antenna configuration being generated by extending a rank-4 codeword for the eight-antenna configuration, wherein the rank-4 codeword for the eight-antenna configuration is generated by creating a matrix by multiplying a rank-4 codeword for a four-antenna configuration with a diagonal matrix, and concatenating the rank-4 codeword for the four-antenna configuration and the matrix; and', 'a processor coupled to the storage unit, configured to execute the instructions retained in the storage unit.
8. The apparatus according to claim 7, wherein the rank-8 codeword for the eight-antenna configuration is generated by forming a first four columns of the rank-8 codeword for the eight-antenna configuration with a first rank-4 codeword for the eight-antenna configuration, and forming a remaining four columns with a second rank-4 codeword for the eight-antenna configuration.
9. The apparatus according to claim 7, wherein the rank-8 codeword for the eight-antenna configuration is generated by forming a first four columns of the rank-8 codeword for the eight-antenna configuration with the rank-4 codeword for the eight-antenna configuration, and forming a remaining four columns with a negative value of the rank-4 codeword for the eight antenna configuration
10. An apparatus for generating a codebook in a communication system, comprises:
a storage unit, configured to store instructions for generating a codebook, the codebook comprises at least one rank-8 codeword for an eight-antenna configuration, the rank-8 codeword for the eight-antenna configuration being generated by extending a rank-4 codeword for the eight-antenna configuration, wherein, the rank-4 codeword for the eight-antenna configuration is generated by creating a matrix by multiplying a rank-4 codeword for a four-antenna configuration (the four antenna) with a diagonal matrix, and concatenating a second rank-4 codeword for the four-antenna configuration and the matrix; and
a processor coupled to the storage unit, configured to execute the instructions retained in the storage unit.', 'a storage unit, configured to store instructions for generating a codebook, the codebook comprises at least one rank-8 codeword for an eight-antenna configuration, the rank-8 codeword for the eight-antenna configuration being generated by extending a rank-4 codeword for the eight-antenna configuration, wherein, the rank-4 codeword for the eight-antenna configuration is generated by creating a matrix by multiplying a rank-4 codeword for a four-antenna configuration (the four antenna) with a diagonal matrix, and concatenating a second rank-4 codeword for the four-antenna configuration and the matrix; and', 'a processor coupled to the storage unit, configured to execute the instructions retained in the storage unit.11. The apparatus according to claim 10, wherein the rank-8 codeword for the eight-antenna configuration is generated by forming a first four columns of the rank-8 codeword for the eight-antenna configuration with a first rank-4 codeword for the eight-antenna configuration, and forming a remaining four columns with a second rank-4 codeword for the eight-antenna configuration.12. The apparatus according to claim 10, wherein the rank-8 codeword for the eight-antenna configuration is generated by forming a first four columns of the rank-8 codeword for the eight-antenna configuration with the rank-4 codeword for the eight-antenna configuration, and forming a remaining four columns with a negative value of the rank-4 codeword for the eight antenna configuration.']
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Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.