Wireless communication method, terminal device and network device

Patent metadata

Field	Value
Publication number	US-12101653-B2
Application number	US-202117458522-A
Country	US
Kind code	B2
Filing date	Aug 26, 2021
Priority date	Mar 21, 2019
Publication date	Sep 24, 2024
Grant date	Sep 24, 2024

Abstract

Disclosed in embodiments of the present disclosure are a wireless communication method, a terminal device and a network device. The method includes that the terminal device receives configuration information of a first resource from the network device and the terminal device determines the first resource on a first bandwidth part (BWP) according to the configuration information. The first resource includes a channel state information reference signal CSI-RS resource and/or a channel state information interference measurement CSI-IM resource. The first BWP is a BWP on an unlicensed carrier, and the first BWP includes at least two subbands in a frequency domain.

First claim

What is claimed is:

1. A method for wireless communication, comprising:
receiving, by a terminal device, configuration information of a first resource sent by a network device, wherein the first resource comprises a channel state information reference signal (CSI-RS) resource; and
determining, by the terminal device, the first resource on a first bandwidth part (BWP) according to the configuration information, wherein the first BWP is a BWP on an unlicensed carrier, and the first BWP comprises at least two subbands in a frequency domain;
wherein the first resource comprises the CSI-RS resource, and the method further comprises:
performing, by the terminal device, channel state information (CSI) measurement according to a valid CSI-RS resource in the CSI-RS resource, wherein the valid CSI-RS resource comprises a CSI-RS resource in the CSI-RS resource that is on a subband and a symbol occupied by the network device, and wherein the valid CSI-RS resource is a part of configured CSI-RS resources, and the other part of the configured CSI-RS resources is an invalid CSI-RS resource,
wherein the method further comprises:
receiving, by the terminal device, indication information indicating measurement information corresponding to the invalid CSI-RS resource.

2. The method according to claim 1 , wherein the configuration information is used for indicating the first resource on the first BWP.

3. The method according to claim 2 , wherein the configuration information is used for indicating the first resource on at least one subband comprised in the first BWP.

4. The method according to claim 2 , wherein the configuration information comprises a starting resource block (RB) of the first resource and a number of RB comprised in the first resource on the first BWP.

5. A terminal device, comprising:
a processor and a memory, wherein the memory is configured to store a computer program, and the processor is configured to call and run the computer program stored in the memory so as to:
receive configuration information of a first resource sent by a network device, wherein the first resource comprises a channel state information reference signal (CSI-RS) resource; and
determine the first resource on a first bandwidth part (BWP) according to the configuration information, wherein the first BWP is a BWP on an unlicensed carrier, and the first BWP comprises at least two subbands in a frequency domain;
wherein the first resource comprises the CSI-RS resource, and the processor is further configured to:
perform channel state information (CSI) measurement according to a valid CSI-RS resource in the CSI-RS resource, wherein the valid CSI-RS resource comprises a CSI-RS resource in the CSI-RS resource that is on a subband and a symbol occupied by the network device, and wherein the valid CSI-RS resource is a part of configured CSI-RS resources, and the other part of the configured CSI-RS resources is an invalid CSI-RS resource, wherein the processor is further configured to:
receive indication information indicating measurement information corresponding to the invalid CSI-RS resource.

6. The terminal device according to claim 5 , wherein the configuration information is used for indicating the first resource on the first BWP.

7. The terminal device according to claim 6 , wherein the configuration information is used for indicating the first resource on at least one subband comprised in the first BWP.

8. The terminal device according to claim 6 , wherein the configuration information comprises a starting resource block (RB) of the first resource and a number of RB comprised in the first resource on the first BWP.

9. A network device, comprising:
a processor and a memory, wherein the memory is configured to store a computer program, and the processor is configured to call and run the computer program stored in the memory so as to:
send configuration information of a first resource to a terminal device, wherein the configuration information is used for determining the first resource on a first bandwidth part (BWP) by the terminal device, the first BWP is a BWP on an unlicensed carrier, the first BWP comprises at least two subbands in a frequency domain, and the first resource comprises a channel state information reference signal (CSI-RS) resource;
wherein the first resource comprises the CSI-RS resource, channel state information (CSI) measurement is performed according to a valid CSI-RS resource in the CSI-RS resource, wherein the valid CSI-RS resource comprises a CSI-RS resource in the CSI-RS resource that is on a subband and a symbol occupied by the network device, and wherein the valid CSI-RS resource is a part of configured CSI-RS resources, and the other part of the configured CSI-RS resources is an invalid CSI-RS resource, and the processor is further configured to:
send indication information to the terminal device, wherein the indication information is used for indicating measurement information corresponding to the invalid CSI-RS resource.

10. The network device according to claim 9 , wherein the configuration information is used for indicating the first resource on the first BWP.

11. The network device according to claim 10 , wherein the configuration information is used for indicating the first resource on at least one subband comprised in the first BWP.

12. The network device according to claim 10 , wherein the configuration information comprises a starting resource block (RB) of the first resource and a number of RB comprised in the first resource on the first BWP.

Assignees

• Guangdong Oppo Mobile Telecommunications Corp Ltd
• Guangdong Oppo Mobile Telecommunication Corp Ltd

Inventors

• Wu Zuomin

Classifications

• H04B7/0626

  Channel coefficients, e.g. channel state information [CSI] · CPC title

• H04W72/0457

  Variable allocation of band or rate · CPC title

• H04W72/044 Primary

  based on the type of the allocated resource · CPC title

• H04W24/02 Primary

  Arrangements for optimising operational condition · CPC title

• H04W16/14

  Spectrum sharing arrangements {between different networks} · CPC title