Method for sending or receiving information, and communication apparatus

Abstract

The present application provides a method for sending or receiving information, and a communication apparatus. CSI reported by a terminal side to a network side comprises an RI, wherein the RI is associated with one candidate value among a group of candidate values of a rank configured by the network side. On the basis of the candidate value corresponding to the rank being equal to 1 or greater than 1, there being one or more quantization bits for codeword elements of an AI-based CSI codeword, the implementation such as different layers discard the codeword elements in an inter-layer common or inter-layer specific manner when the candidate value associated with the RI is greater than 1, and discarding processing and quantization on the CSI codeword, the terminal side reports the CSI to the network side. Facing the problem that the AI-based CSI codeword does not have an actual physical meaning, the present application can avoid the situation of loss of all pieces of CSI in a certain dimension that may be caused under a rule-based CSI discarding solution, and can reduce the performance loss of a system during AI-based CSI reporting.

Claims

1. A method of transmitting information, characterized by, include: Obtain Channel State Information (CSI) reporting configuration information, wherein the CSI reporting configuration information includes rank constraint information, and the rank constraint information indicates one or more candidate values ​​for the rank; Send CSI, where, The CSI includes a rank indicator RI, which is associated with a first candidate value among the one or more candidate values; and The CSI also includes a first bitstream, which is obtained based on the discarding and quantization of CSI codewords, and the discarding process is related to the first candidate value.

2. The method of claim 1, wherein, The CSI codeword is obtained by processing a matrix composed of channel feature vectors based on an artificial intelligence (AI) encoder. The channel feature vectors are determined based on the measured CSI.

3. The method according to claim 1 or 2, characterized in that, The method includes: Send a first message, which indicates the first candidate value.

4. The method according to any one of claims 1 to 3, characterized in that, The first bitstream is obtained based on the first candidate value, the number of quantized bits of the codeword elements of the CSI codeword, and the discarding and quantization of the CSI codeword.

5. The method of claim 4, wherein, The CSI reporting configuration information also includes second information, which indicates the number of quantization bits.

6. The method according to claim 4 or 5, characterized in that, The CSI reporting configuration information also includes the number of reported codeword elements.

7. The method according to any one of claims 4-6, characterized in that, The method further includes: The first candidate value is 1. Based on the number of quantized bits, the first code stream is generated. The first code stream comes from M0 codeword elements out of the M codeword elements contained in the CSI codeword, where M0 is the number of reported codeword elements.

8. The method according to any one of claims 4-6, characterized in that, The method further includes: The first candidate value is r, where r is greater than 1. Based on the number of quantization bits, the first bitstream is generated. The first bitstream contains r sub-bitstreams, each of which corresponds to one of the r layers. The sub-bitstream of the i-th layer in the r layers comes from M0 codeword elements of the i-th layer. Each of the r layers contains M codeword elements, where M0 is the number of reported codeword elements.

9. The method according to any one of claims 4-6, characterized in that, The first bitstream is obtained based on the first candidate value, the number of quantized bits of the codeword elements of the CSI codeword, and the discarding and quantization of the CSI codeword, including: The first bitstream is obtained based on the first candidate value, the number of quantized bits, the type of the number of quantized bits, and the discarding and quantization of the CSI codeword.

10. The method of claim 9, wherein, The CSI reporting configuration information also includes third information, which indicates the type of the number of quantization bits.

11. The method according to claim 9 or 10, characterized in that, The method further includes: The first candidate value is 1, and the number of quantization bits is n, and the number of quantization bits corresponding to the CSI code word is x j M j code word elements M code word elements, the CSI code word comprising M code word elements, ∑ j M j = M, j = 1, 2,... n, n greater than or equal to 2; generating the first code stream based on the n kinds of quantization bit number and the quantization bit number corresponding to the n kinds of quantization bit number one by one, wherein the first code stream comprises n sub-code streams, and a jth sub-code stream in the n sub-code streams corresponds to the jth kind of quantization bit number Each code element.

12. The method of claim 9 or 10, wherein, The method further includes: The first candidate value is r, where r is greater than 1, and the type of the number of quantized bits is one. The first bitstream is generated, which contains r sub-bitstreams. The r sub-bitstreams correspond one-to-one with r layers. The bitstream of the i-th layer in the r layers comes from the M0 codeword elements of the i-th layer. Each of the r layers contains M codeword elements.

13. The method of claim 9 or 10, wherein, The method further includes: The first candidate value is r, r is greater than 1, and the quantity of the quantization bits is one kind, the first code stream is generated, the first code stream comprises r sub-code streams, the r sub-code streams one-to-one correspond to r layers, a sub-code stream of an i-th layer in the r layers is from M i code word elements of the i-th layer, and the i-th layer in the r layers comprises M code word elements.

14. The method of claim 9 or 10, wherein, The method further includes: The first candidate value is r, r is greater than 1, the number of quantization bits is n kinds, the first code stream is generated, the first code stream includes r sub-code streams, the r sub-code streams one-to-one correspond to r layers, the sub-code stream of the i layer in the r layers is from the i layer, and the corresponding number of quantization bits is x j ​ M code word elements, where the i-th layer contains M j code word elements, j = 1, 2,... n, n is greater than or equal to 2.

15. The method of claim 9 or 10, wherein, The method further includes: The first candidate value is r, r is greater than 1, the number of quantization bits is n kinds, the first code stream is generated, the first code stream includes r sub-code streams, the r sub-code streams one-to-one correspond to r layers, the sub-code stream of the i-th layer in the r layers is from the i-th layer, and the number of quantization bits is x j Corresponding a code word element, the i-th layer comprising There are 1, 2, ..., n codeword elements, where j = 1, 2, ..., n, and n is greater than or equal to 2.

16. The method of any one of claims 1-15, wherein, The CSI codeword is determined based on the reported configuration information.

17. A method of receiving information, characterized by, include: The channel state information (CSI) reporting configuration information is sent, which includes rank constraint information, and the rank constraint information indicates one or more candidate values ​​for the rank. Receive CSI, where, The CSI includes a rank indicator RI, which is associated with a first candidate value among the one or more candidate values; and The CSI also includes a first bitstream, which is obtained based on the discarding and quantization of CSI codewords, and the discarding process is related to the first candidate value.

18. The method of claim 17, wherein, The CSI codeword is obtained by processing a matrix composed of channel feature vectors based on an artificial intelligence (AI) encoder. The channel feature vectors are determined based on the measured CSI.

19. The method of claim 17 or 18, wherein, The method includes: Receive first information, which indicates the first candidate value.

20. The method of any one of claims 17-19, wherein, The first bitstream is obtained based on the first candidate value, the number of quantized bits of the codeword elements of the CSI codeword, and the discarding and quantization of the CSI codeword.

21. The method of claim 20, wherein, The CSI reporting configuration information also includes second information, which indicates the number of quantization bits.

22. The method of claim 20 or 21, wherein, The CSI reporting configuration information also includes the number of reported codeword elements.

23. A communications device, characterized by include: The processing module is used to obtain Channel State Information (CSI) reporting configuration information, wherein the CSI reporting configuration information includes rank constraint information, and the rank constraint information indicates one or more candidate values ​​for the rank; as well as A communication module is configured to transmit a CSI, wherein the CSI includes a rank indicator RI associated with a first candidate value among the one or more candidate values; and the CSI further includes a first bitstream obtained by discarding and quantizing CSI codewords, the discarding being related to the first candidate value.

24. A communications device, characterized by include: Communication module, used for: The system transmits Channel State Information (CSI) reporting configuration information, which includes rank constraint information indicating one or more candidate values ​​for the rank; and... Receive CSI, wherein the CSI includes a rank indicator RI associated with a first candidate value among the one or more candidate values; and the CSI further includes a first bitstream obtained by discarding and quantizing CSI codewords, the discarding being related to the first candidate value.

25. A communications device, characterized by The system includes a communication interface and circuitry. The communication interface is used to acquire information required to perform the method as described in any one of claims 1-16, and to send the information to the circuitry, which is used to perform the method as described in any one of claims 1-16 based on the received information; or... The communication interface is used to acquire information required to perform the method as described in any one of claims 17-22, and to send the information to the circuit, which is used to perform the method as described in any one of claims 17-22 based on the received information.

26. A communications device, characterized by It includes a module or unit for performing the method as described in any one of claims 1-16; or, it includes a module or unit for performing the method as described in any one of claims 17-22.

27. A communications device, characterized by The device includes a processor coupled to a memory, the processor being configured to execute a computer program or instructions stored in the memory to cause the communication device to perform the method as described in any one of claims 1-16, or to perform the method as described in any one of claims 17-22.

28. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that, when executed on a computer, implement the method as described in any one of claims 1-16, or implement the method as described in any one of claims 17-22.

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