Patent ID: 11903010
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method, comprising:
sending, by a first terminal device, a reference signal to a second terminal device;
receiving, by the first terminal device from the second terminal device, channel state information of a first sidelink and channel state information of a second sidelink, wherein the second sidelink is a direct link from the second terminal device to a third terminal device, the reference signal is used to determine the channel state information of the first sidelink, and the first sidelink is a direct link from the first terminal device to the second terminal device;
obtaining, by the first terminal device, channel state information of a third sidelink, wherein the third sidelink is a direct link from the first terminal device to the third terminal device; and
determining, by the first terminal device, based on the channel state information of the third sidelink, the channel state information of the second sidelink, and the channel state information of the first sidelink, a link to use to send data or control information to the third terminal device.