CSI feedback method and apparatus, device, and readable storage medium
AssigneeVivo Mobile Communication Co., Ltd.
InventorsJiangwei Yuan, Yang Song, Peng Sun, Rakesh Tamrakar
Life of this patent
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Abstract
A CSI feedback method and apparatus, a device, and a readable storage medium are disclosed. The method includes: feeding back, by a terminal, one or more CSI reports to a network-side device, where the CSI report includes a first field corresponding to a first measurement hypothesis, where the first measurement hypothesis includes: X STRP measurement hypotheses and one joint transmission measurement hypothesis, where X is a natural number; or the first measurement hypothesis is one of all STRP measurement hypotheses and joint transmission measurement hypotheses.
Claims20
A channel state information (CSI) feedback method, comprising:
- feeding back, by a terminal, one or more CSI reports to a network-side device, wherein the CSI report comprises a rank indicator (RI) field and a channel state information reference signal resource indicator (CRI) field corresponding to a first measurement hypothesis, wherein
- the first measurement hypothesis comprises:
- X single transmission and reception point (STRP) measurement hypotheses and one joint transmission measurement hypothesis, wherein X is a natural number;
- or the first measurement hypothesis is one of all STRP measurement hypotheses and joint transmission measurement hypotheses;
- in a case that the first measurement hypothesis is one of all the STRP measurement hypotheses and joint transmission measurement hypotheses, indicating, by the terminal to the network-side device by using the CRI field in the CSI report, that a type of the first measurement hypothesis is an STRP measurement hypothesis or a joint transmission measurement hypothesis;
- in a case that the first measurement hypothesis comprises the X STRP measurement hypotheses and the one joint transmission measurement hypothesis, a quantity of RI fields in the CSI report is:
- X+1, wherein X RI fields correspond to the X STRP measurement hypotheses, and one RI field corresponds to the one joint transmission measurement hypothesis.
A terminal, comprising a processor, a memory, and a program stored in the memory and capable of running on the processor, wherein the program, when being executed by the processor, implements:
- feeding back one or more channel state information (CSI) reports to a network-side device, wherein the CSI report comprises a rank indicator (RI) field and a channel state information reference signal resource indicator (CRI) field corresponding to a first measurement hypothesis, wherein
- the first measurement hypothesis comprises:
- X single transmission and reception point (STRP) measurement hypotheses and one joint transmission measurement hypothesis, wherein X is a natural number;
- or the first measurement hypothesis is one of all STRP measurement hypotheses and joint transmission measurement hypotheses;
- in a case that the first measurement hypothesis is one of all the STRP measurement hypotheses and joint transmission measurement hypotheses, indicating, by the terminal to the network-side device by using the CRI field in the CSI report, that a type of the first measurement hypothesis is an STRP measurement hypothesis or a joint transmission measurement hypothesis;
- in a case that the first measurement hypothesis comprises the X STRP measurement hypotheses and the one joint transmission measurement hypothesis, a quantity of RI fields in the CSI report is:
- X+1, wherein X RI fields correspond to the X STRP measurement hypotheses, and one RI field corresponds to the one joint transmission measurement hypothesis.
A network-side device, comprising a processor, a memory, and a program stored in the memory and capable of running on the processor, wherein the program, when being executed by the processor, implements:
- receiving one or more channel state information (CSI) reports, wherein the CSI report comprises a rank indicator (RI) field and a channel state information reference signal resource indicator (CRI) field corresponding to a first measurement hypothesis, wherein
- the first measurement hypothesis comprises:
- X single transmission and reception point (STRP) measurement hypotheses and one joint transmission measurement hypothesis, wherein X is a positive integer;
- or the first measurement hypothesis is one of all STRP measurement hypotheses and joint transmission measurement hypotheses;
- in a case that the first measurement hypothesis is one of all the STRP measurement hypotheses and joint transmission measurement hypotheses, determining, by the network-side device using the CRI field in the CSI report, that a type of the first measurement hypothesis is an STRP measurement hypothesis or a joint transmission measurement hypothesis;
- in a case that the first measurement hypothesis comprises the X STRP measurement hypotheses and the one joint transmission measurement hypothesis, a quantity of RI fields in the CSI report is:
- X+1, wherein X RI fields correspond to the X STRP measurement hypotheses, and one RI field corresponds to the one joint transmission measurement hypothesis.
Dependencies are inferred from the claim text.