Search

CN-122003940-A - Communication method and device, terminal equipment and network equipment

CN122003940ACN 122003940 ACN122003940 ACN 122003940ACN-122003940-A

Abstract

The embodiment of the application provides a communication method, a communication device, a terminal device and a network device, wherein the method comprises the steps of measuring reference signals sent by the network device on N reference signal resources in K reference signal resources configured by the network device to obtain precoding information corresponding to M reference signal resources in the K reference signal resources, wherein one or more reference signal resources in the M reference signal resources are not included in the N reference signal resources, K is an integer greater than 1, N, M is an integer greater than 0, and N is smaller than K.

Inventors

  • CHEN WENHONG
  • CAO JIANFEI

Assignees

  • OPPO广东移动通信有限公司

Dates

Publication Date
20260508
Application Date
20231007

Claims (20)

  1. A method of communication, the method comprising: measuring reference signals sent by network equipment on N reference signal resources in K reference signal resources configured by the network equipment to obtain precoding information corresponding to M reference signal resources in the K reference signal resources; Wherein one or more of the M reference signal resources are not included in the N reference signal resources, K is an integer greater than 1, N, M are integers greater than 0, and N is less than K.
  2. The method of claim 1, wherein the measuring the reference signal sent by the network device to obtain precoding information corresponding to M reference signal resources of the K reference signal resources comprises: measuring the reference signals to obtain channel information corresponding to the N reference signal resources; And inputting the channel information corresponding to the N reference signal resources into a first model to obtain precoding information corresponding to the M reference signal resources.
  3. The method of claim 2, wherein the first model is determined from one or more values in K, N, M.
  4. The method of claim 2, wherein the first model is associated with a set of resources where the K reference signal resources are located.
  5. The method of claim 1, wherein the measuring the reference signal sent by the network device to obtain precoding information corresponding to M reference signal resources of the K reference signal resources comprises: measuring the reference signals to obtain channel information corresponding to the N reference signal resources; Inputting the channel information corresponding to the N reference signal resources into a second model to obtain channel information or precoding information corresponding to the K reference signal resources; And inputting the channel information or the precoding information corresponding to the K reference signal resources into a third model to obtain the precoding information corresponding to the M reference signal resources, wherein M is smaller than K.
  6. The method of claim 5, wherein the second model is determined based on one or more of N, K values, and/or, The third model is determined based on one or more values in K, M.
  7. The method of claim 5, wherein the second model and/or the third model is associated with a set of resources where the K reference signal resources are located.
  8. The method of any of claims 2 to 7, wherein the channel information corresponding to the N reference signal resources comprises one or more of: n channel matrixes respectively corresponding to the N reference signal resources; N eigenvector matrixes respectively corresponding to the N reference signal resources and And one joint eigenvector matrix corresponding to the N reference signal resources is an eigenvector matrix corresponding to the N combined channel matrices.
  9. The method of any one of claims 1 to 8, wherein the method further comprises: And receiving first indication information sent by the network equipment, wherein the first indication information is used for indicating the N reference signal resources from the K reference signal resources.
  10. The method of claim 9, wherein, The first indication information indicates the N reference signal resources from the K reference signal resources through a first bit map, or The first indication information indicates the sampling rate of the N reference signal resources corresponding to the K reference signal resources, or The first indication information indicates the index of the N reference signal resources in the K reference signal resources, or The first indication information indicates the value of N, and the N reference signal resources are the first N reference signal resources in the K reference signal resources.
  11. The method of any one of claims 1 to 10, wherein the method further comprises: And receiving second indicating information sent by the network equipment, wherein the second indicating information is used for indicating the value of M, or the second indicating information is used for indicating whether M is allowed to be smaller than K.
  12. The method of any one of claims 1 to 11, wherein the method further comprises: And sending precoding information corresponding to the M reference signal resources to the network equipment.
  13. The method of any one of claims 1 to 12, wherein the method further comprises: transmitting third indication information to the network device, the third indication information including one or more of: the value of M; index indication information of the M reference signal resources; rank indication RI information corresponding to the M reference signal resources; and Channel Quality Indication (CQI) information corresponding to the M reference signal resources.
  14. The method of claim 13, wherein, The index indication information is used for indicating the M reference signal resources from the K reference signal resources through a second bit map, or The index indication information is used for indicating indexes of the M reference signal resources in the K reference signal resources.
  15. The method of any of claims 1-14, wherein the M reference signal resources comprise the N reference signal resources, and M is greater than N.
  16. The method according to any of claims 1 to 15, wherein the number of channel state information, CSI, processing units occupied by the measurement is determined according to the value of N and/or K.
  17. The method according to any of claims 1 to 16, wherein the CSI processing delay required for the measurement is determined from the value of N and/or K.
  18. A method of communication, the method comprising: transmitting reference signals to the terminal equipment on N reference signal resources in K reference signal resources configured for the terminal equipment; Receiving precoding information corresponding to M reference signal resources in the K reference signal resources sent by the terminal equipment; Wherein one or more of the M reference signal resources are not included in the N reference signal resources, K is an integer greater than 1, N, M are integers greater than 0, and N is less than K.
  19. The method of claim 18, wherein the method further comprises: And configuring a first model for the terminal equipment, wherein the first model is used for inputting channel information corresponding to the N reference signal resources obtained by measuring the reference signals by the terminal equipment and outputting precoding information corresponding to the M reference signal resources.
  20. The method of claim 19, wherein the first model is determined from one or more values in K, N, M.

Description

Communication method and device, terminal equipment and network equipment Technical Field The embodiment of the application relates to the technical field of mobile communication, in particular to a communication method and device, terminal equipment and network equipment. Background In the 5G communication system, channel State Information (CSI) feedback corresponding to a multiple transmission and reception point (Transmit Reception Point, TRP) transmission scheme can be supported, where the CSI feedback is performed based on a specific codebook, and the network device can perform downlink multi-TRP transmission based on CSI fed back by the terminal device. For example, CSI feedback corresponding to multi-TRP Non-coherent joint transmission (Non-Coherent Joint Transmission, NC-JT) may be supported, and CSI feedback corresponding to multi-TRP coherent joint transmission (Coherent Joint Transmission, cqt) may be supported. However, in CSI feedback corresponding to the existing multi-TRP transmission scheme, since each TRP needs an independent reference signal resource for CSI measurement, as the number of TRPs increases or the number of ports supported by each TRP increases, the reference signal resource actually used increases linearly. In addition, the terminal equipment needs to perform CSI measurement and CSI calculation on the reference signals on the reference signal resources, and the corresponding calculation complexity is also increased significantly. Disclosure of Invention The embodiment of the application provides a communication method and device, terminal equipment and network equipment. In a first aspect, a communication method provided by an embodiment of the present application includes: Measuring reference signals sent by the network equipment on N reference signal resources in K reference signal resources configured by the network equipment to obtain precoding information corresponding to M reference signal resources in the K reference signal resources; wherein one or more of the M reference signal resources are not included in the N reference signal resources, and K is an integer greater than 1, N, M are integers greater than 0, and N is less than K. In a second aspect, a communication method provided by an embodiment of the present application includes: Transmitting reference signals to the terminal equipment on N reference signal resources in K reference signal resources configured for the terminal equipment; Receiving precoding information corresponding to M reference signal resources in K reference signal resources sent by a terminal device; wherein one or more of the M reference signal resources are not included in the N reference signal resources, and K is an integer greater than 1, N, M are integers greater than 0, and N is less than K. In a third aspect, a communication apparatus provided by an embodiment of the present application is applied to a terminal device, where the apparatus includes: The first processing unit is configured to measure the reference signals sent by the network equipment on N reference signal resources in K reference signal resources configured by the network equipment to obtain precoding information corresponding to M reference signal resources in the K reference signal resources; wherein one or more of the M reference signal resources are not included in the N reference signal resources, and K is an integer greater than 1, N, M are integers greater than 0, and N is less than K. In a fourth aspect, a communication apparatus provided by an embodiment of the present application is applied to a network device, where the apparatus includes: The second sending unit is configured to send reference signals to the terminal equipment on N reference signal resources in K reference signal resources configured for the terminal equipment; The second receiving unit is configured to receive precoding information corresponding to M reference signal resources in the K reference signal resources sent by the terminal equipment; wherein one or more of the M reference signal resources are not included in the N reference signal resources, and K is an integer greater than 1, N, M are integers greater than 0, and N is less than K. In a fifth aspect, an embodiment of the present application provides a terminal device, where the terminal device includes a processor and a memory. The memory is configured to store computer-executable instructions, and the processor is coupled to the memory for implementing the communication method of the first aspect by executing the computer-executable instructions. In a sixth aspect, a network device provided by an embodiment of the present application includes a processor and a memory. The memory is for storing computer executable instructions and the processor is coupled to the memory for implementing the communication method of the second aspect described above by executing the computer executable instructions. In a seventh aspect, an embodimen