Communication method and apparatus

Patent metadata

Field	Value
Publication number	US-12512918-B2
Application number	US-202217936855-A
Country	US
Kind code	B2
Filing date	Sep 30, 2022
Priority date	Apr 10, 2020
Publication date	Dec 30, 2025
Grant date	Dec 30, 2025

Abstract

This application relates to the field of communication technologies, and provides a communication method and apparatus, to determine a measurement periodicity in which a communication device performs layer 1 signal to interference plus noise ratio (L1-SINR) beam measurement based on a channel measurement resource (CMR) and an interference measurement resource (IMR). The method includes: A communication device receives a CMR and an IMR corresponding to the CMR. A terminal measures an L1-SINR of a receive beam based on the CMR and the IMR, to determine an optimal receive beam of the terminal. The CMR and the IMR are channel state information reference signal (CSI-RS) resources in different CSI-RS resource sets. The communication device determines a value of a first parameter based on repetition corresponding to a CSI-RS resource set corresponding to the CMR, and determines, based on the value of the first parameter, a measurement periodicity for measuring the L1-SINR.

First claim

What is claimed is:

1 . A communication method, comprising:
receiving, by a communication device, a channel measurement resource (CMR) and an interference measurement resource (IMR) corresponding to the CMR, wherein the CMR and the IMR are used to measure a layer 1 signal to interference plus noise ratio (L1-SINR), the CMR comprises one or more channel state information reference signal (CSI-RS) resources in a first CSI-RS resource set, and the IMR comprises one or more CSI-RS resources in a second CSI-RS resource set; determining, by the communication device, a value of a first parameter based on a repetition parameter corresponding to the first CSI-RS resource set; and determining, by the communication device based on the value of the first parameter, a measurement periodicity for measuring the L1-SINR; wherein if the repetition parameter of the first CSI-RS resource set is configured as “on”, the value of the first parameter is ┌R/K┐, or the value of the first parameter is ┌R/min(K, L)┐, wherein a value of R is a maximum quantity of receive beams that is reported when the communication device performs capability reporting, min(K, L) indicates that a smaller value in K and L is used, a value of K is a quantity of CSI-RS resources in the first CSI-RS resource set, and a value of L is a quantity of CSI-RS resources in the second CSI-RS resource set.

2 . The communication method according to claim 1 , wherein if the repetition parameter of the first CSI-RS resource set is configured as “off”, the value of the first parameter is 1.

3 . The communication method according to claim 1 , further comprising: determining, by the communication device, the value of the first parameter based on the repetition parameter corresponding to the first CSI-RS resource set and a repetition parameter corresponding to the second CSI-RS resource set.

4 . The communication method according to claim 3 , wherein if the repetition parameter of the first CSI-RS resource set and the repetition parameter of the second CSI-RS resource set are both configured as “on”, the value of the first parameter is ┌R/K┐, or the value of the first parameter is ┌R/min(K, L)┐, wherein
a value of R is a maximum quantity of receive beams that is reported when the communication device performs capability reporting, min(K, L) indicates that a smaller value in K and L is used, a value of K is a quantity of CSI-RS resources in the first CSI-RS resource set, and a value of L is a quantity of CSI-RS resources in the second CSI-RS resource set.

5 . The communication method according to claim 3 , wherein if the repetition parameter of the first CSI-RS resource set is configured as “off”, or the repetition parameter of the second CSI-RS resource set is configured as “off”, the value of the first parameter is 8, or the value of the first parameter is R, wherein a value of R is a maximum quantity of receive beams that is reported when the communication device performs capability reporting.

6 . The communication method according to claim 1 , wherein a configuration of a repetition parameter of the IMR is consistent with a configuration of a repetition parameter of the CMR.

7 . The communication method according to claim 1 , wherein if the repetition parameter of the first CSI-RS resource set is configured as “off”, each CSI-RS resource in the first CSI-RS resource set has a corresponding measurement resource, and the CSI-RS resource and the corresponding measurement resource have a quasi co-location type D (QCL-TypeD) relationship.

8 . The communication method according to claim 7 , wherein the measurement resource is a synchronization signal block (SSB), and the SSB is a CMR that can be used to measure the L1-SINR, or the SSB is a CMR that can be used to measure an L1-RSRP.

9 . The communication method according to claim 7 , wherein the measurement resource is a CSI-RS resource in a third CSI-RS resource set, a repetition parameter of the third CSI-RS resource set is configured as “on”, and the CSI-RS resource in the third CSI-RS resource set is a CMR that can be used to measure the L1-SINR, or the CSI-RS resource in the third CSI-RS resource set is a CMR that can be used to measure an L1-RSRP.

10 . A communication method, comprising:
configuring, by a network device, a channel measurement resource (CMR) and an interference measurement resource (IMR) corresponding to the CMR, wherein the CMR and the IMR are used to measure a layer 1 signal to interference plus noise ratio (L1-SINR), the CMR comprises one or more channel state information reference signal (CSI-RS) resources in a first CSI-RS resource set, and the IMR comprises one or more CSI-RS resources in a second CSI-RS resource set; and sending, by the network device, the CMR and the IMR corresponding to the CMR to a terminal; wherein a repetition parameter corresponding to the first CSI-RS resource set is used for determining a value of a first parameter, and the first parameter is used for determining a measurement periodicity for measuring the L1-SINR; if the repetition parameter of the first CSI-RS resource set is configured as “on”, the value of the first parameter is ┌R/K┐, or the value of the first parameter is ┌R/min(K, L)┐, wherein a value of R is a maximum quantity of receive beams that is reported when the communication device performs capability reporting, min(K, L) indicates that a smaller value in K and L is used, a value of K is a quantity of CSI-RS resources in the first CSI-RS resource set, and a value of Lis a quantity of CSI-RS resources in the second CSI-RS resource set.

11 . The communication method according to claim 10 , wherein a configuration of a repetition parameter of the IMR is consistent with a configuration of a repetition parameter of the CMR; and
if a repetition parameter of the first CSI-RS resource set is configured as “off”, the network device configures a corresponding measurement resource for each CSI-RS resource in the first CSI-RS resource set, wherein the CSI-RS resource and the corresponding measurement resource have a quasi co-location type D (QCL-TypeD) relationship.

12 . The communication method according to claim 11 , wherein the measurement resource is a synchronization signal block (SSB), and the SSB is a CMR that can be used to measure the L1-SINR, or the SSB is a CMR that can be used to measure an L1-RSRP.

13 . The communication method according to claim 11 , wherein the measurement resource is a CSI-RS resource in a third CSI-RS resource set, a repetition parameter of the third CSI-RS resource set is configured as “on”, and the CSI-RS resource in the third CSI-RS resource set is a CMR that can be used to measure the L1-SINR, or the CSI-RS resource in the third CSI-RS resource set is a CMR that can be used to measure an L1-RSRP.

14 . An apparatus, comprising:
a processor; and a non-transitory computer readable memory coupled to the processor and storing program instructions that, when executed by the processor, cause the apparatus to perform the following steps: receiving a channel measurement resource (CMR) and an interference measurement resource (IMR) corresponding to the CMR, wherein the CMR and the IMR are used to measure a layer 1 signal to interference plus noise ratio (L1-SINR), the CMR comprises one or more channel state information reference signal (CSI-RS) resources in a first CSI-RS resource set, and the IMR comprises one or more CSI-RS resources in a second CSI-RS resource set; determining a value of a first parameter based on a repetition parameter corresponding to the first CSI-RS resource set; and determining, based on the value of the first pa

Assignees

• Huawei Tech Co Ltd

Inventors

• Li Hong
• Zhang Li
• Han Jing
• Shen Zhongyi

Classifications

• H04B17/328

  Reference signal received power [RSRP]; Reference signal received quality [RSRQ] · CPC title

• H04B17/309

  Measuring or estimating channel quality parameters · CPC title

• H04B17/345

  Interference values ({signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]} H04B17/336) · CPC title

• H04B7/088

  using beam selection · CPC title

• H04B17/382

  for resource allocation, admission control or handover · CPC title