Precoding Matrix Indication Method, User Equipment, and Access Device

Abstract

Embodiments of the present disclosure provide a precoding matrix indication method, user equipment, and an access device. The precoding matrix indication method includes: generating indication information, where the indication information indicates KNZ-v non-zero weighting coefficients, the KNZ-v non-zero weighting coefficients belong to KNZ non-zero weighting coefficients, v is a quantity of transport layers, the KNZ non-zero weighting coefficients are for constructing a precoding matrix, and the precoding matrix is constructed based on at least the KNZ non-zero weighting coefficients, m spatial domain vectors, and n frequency domain vectors, where the indication information is generated in a first manner when a first preset condition is met, or the indication information is generated in a second manner when a second preset condition is met; and sending the indication information.

Description

Claims

1. A precoding matrix indication method, comprising: generating indication information, wherein the indication information indicates KNZ -v non-zero weighting coefficients, the KNZ -v non-zero weighting coefficients belong to KNZ non-zero weighting coefficients, v is a quantity of transport layers, and the KNZ non-zero weighting coefficients are for constructing a precoding matrix, wherein when a first preset condition is met, the indication information indicates that a group 1 comprises KNZ/2-vfirst-type parameters, or when a second preset condition is met, the indication information indicates that a group 2 comprises all first-type parameters; andsending the indication information.

2. The method according to claim 1, wherein the first preset condition comprises the following condition: KNZ/2-v>0.

3. The method according to claim 1, wherein the second preset condition comprises the following condition: KNZ/2-v≤0.

4. The method according to claim 1, wherein the all first-type parameters comprise KNZ - v first-type parameters.

5. The method according to claim 1, wherein the method comprises: when the first preset condition is met, the indication information further indicates that the group 2 comprises remaining first-type parameters that are in the KNz -v first-type parameters and that are other than the KNZ/2-vfirst-type parameters.

6. A communication apparatus, comprising: at least one processor;at least one memory configured to store a computer program that, when executed by the at least one processor, causes the communication apparatus to perform at least following operations: generating indication information, wherein the indication information indicates KNZ -v non-zero weighting coefficients, the KNZ -v non-zero weighting coefficients belong to KNZ non-zero weighting coefficients, v is a quantity of transport layers, and the KNZ non-zero weighting coefficients are for constructing a precoding matrix, wherein when a first preset condition is met, the indication information indicates that a group 1 comprises KNZ/2-vfirst-type parameters, or when a second preset condition is met, the indication information indicates that a group 2 comprises all first-type parameters; andsending the KNZ -v non-zero weighting coefficients based on the indication information.

7. The communication apparatus according to claim 6, wherein the first preset condition comprises the following condition: KNZ/2-v>0.

8. The communication apparatus according to claim 6, wherein the second preset condition comprises the following condition: KNZ/2-v≤0.

9. The communication apparatus according to claim 6, wherein the all first-type parameters comprise KNZ -v first-type parameters.

10. The communication apparatus according to claim 6, wherein when the first preset condition is met, the indication information further indicates that the group 2 comprises remaining first-type parameters that are in the KNZ -v first-type parameters and that are other than the KNZ/2-vfirst-type parameters.

11. A communications chip comprising at least one processor, wherein the at least one processor is coupled with at least one memory that stores computer instructions, that when executed by the at least one processor, cause the communications chip to perform at least following operations: generating indication information, wherein the indication information indicates KNZ -v non-zero weighting coefficients, the KNZ -v non-zero weighting coefficients belong to KNZ non-zero weighting coefficients, v is a quantity of transport layers, and the KNZ non-zero weighting coefficients are for constructing a precoding matrix, wherein when a first preset condition is met, the indication information indicates that a group 1 comprises KNZ/2-vfirst-type parameters, or when a second preset condition is met, the indication information indicates that a group 2 comprises all first-type parameters; andsending the indication information.

12. The communication chip according to claim 11, wherein the first preset condition comprises the following condition: KNZ/2-v>0.

13. The communication chip according to claim 11, wherein the second preset condition comprises the following condition: KNZ/2-v≤0.

14. The communication chip according to claim 11, wherein the all first-type parameters comprise KNZ -v first-type parameters.

15. The communication chip according to claim 11, wherein when the first preset condition is met, the indication information further indicates that the group 2 comprises remaining first-type parameters that are in the KNZ -v first-type parameters and that are other than the KNZ/2-vfirst-type parameters.

16. A non-transitory computer-readable storage medium storing computer instructions, that when executed by at least one processor, cause the at least one processor to perform at least following operations: generating indication information, wherein the indication information indicates KNZ -v non-zero weighting coefficients, the KNZ -v non-zero weighting coefficients belong to KNZ non-zero weighting coefficients, v is a quantity of transport layers, and the KNZ non-zero weighting coefficients are for constructing a precoding matrix, wherein when a first preset condition is met, the indication information indicates that a group 1 comprises KNZ/2-vfirst-type parameters, or when a second preset condition is met, the indication information indicates that a group 2 comprises all first-type parameters; andsending the KNZ -v non-zero weighting coefficients based on the indication information.

17. The non-transitory computer-readable storage medium according to claim 16, wherein the first preset condition comprises the following condition: KNZ/2-v>0[KNZ /2] -v>0.

18. The non-transitory computer-readable storage medium according to claim 16, wherein the second preset condition comprises the following condition: KNZ/2-v≤0.

19. The non-transitory computer-readable storage medium according to claim 16, wherein the all first-type parameters comprise KNZ -v first-type parameters.

20. The non-transitory computer-readable storage medium according to claim 16, wherein when the first preset condition is met, the indication information further indicates that the group 2 comprises remaining first-type parameters that are in the KNZ -v first-type parameters and that are other than the KNZ/2-vfirst-type parameters.