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US 11,903,010 B2Granted
Sidelink quality measurement method and communications apparatus
AssigneeHuawei Technologies Co., Ltd.
InventorsTianze Li, Zhengzheng Xiang, Jinfang Zhang, Hongjia Su, Lei Lu
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Abstract
This application provides a sidelink quality measurement method and a communications apparatus. The method includes: A first terminal device sends a reference signal to a second terminal device, where the reference signal is used to determine channel state information of a first sidelink, and the first sidelink is a direct link from the first terminal device to the second terminal device. The first terminal device receives, from the second terminal device, the channel state information of the first sidelink.
Claims20
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.
2 more elements
A method, comprising:
- receiving, by a second terminal device, a reference signal from a first terminal device;
- determining, by the second terminal device, channel state information of a first sidelink based on the reference signal, wherein the first sidelink is a direct link from the first terminal device to the second terminal device;
- obtaining, by a second terminal device, 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;
- and
- sending, by the second terminal device to the first terminal device or a network device, the channel state information of the first sidelink and the channel state information of the second sidelink.
2 more elements
A method, comprising:
- receiving, by a network device from a first terminal device or a second terminal device, channel state information of a first sidelink, wherein the first sidelink is a direct link from the first terminal device to the second terminal device;
- receiving, by the network device from a third terminal device, channel state information of a second sidelink and channel state information of a third sidelink, wherein the second sidelink is a direct link from the second terminal device to the third terminal device, and the third sidelink is a direct link from the first terminal device to the third terminal device;
- determining, by the network 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 first link for sending data or control information by the first terminal device to the third terminal device;
- and
- sending, by the network device, information about the first link to the first terminal device.
2 more elements
A communications apparatus, comprising:
- a memory storage comprising instructions;
- and
- one or more processors in communication with the memory storage, wherein the execution of the instructions by the one or more processors causes the apparatus to:
- send a reference signal to a second terminal device;
- receive, 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 a first sidelink, and the first sidelink is a direct link from a first terminal device to the second terminal device;
- obtain 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
- determine, 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.
5 more elements
A communications apparatus, comprising:
- a memory storage comprising instructions;
- and
- one or more processors in communication with the memory storage, wherein the execution of the instructions by the one or more processors causes the apparatus to:
- receive a reference signal from a first terminal device;
- determine channel state information of a first sidelink based on the reference signal, wherein the first sidelink is a direct link from the first terminal device to a second terminal device;
- obtain 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;
- and
- send, to the first terminal device or a network device, the channel state information of the first sidelink and the channel state information of the second sidelink.
5 more elements
A communications apparatus, comprising:
- a memory storage comprising instructions;
- and
- one or more processors in communication with the memory storage, wherein the execution of the instructions by the one or more processors causes the apparatus to:
- receive, from a first terminal device or a second terminal device, channel state information of a first sidelink, wherein the first sidelink is a direct link from the first terminal device to the second terminal device;
- receive channel state information of a second sidelink and channel state information of a third sidelink from a third terminal device, wherein the second sidelink is a direct link from the second terminal device to the third terminal device, and the third sidelink is a direct link from the first terminal device to the third terminal device;
- determine, 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 for sending data or control information by the first terminal device to the third terminal device;
- and
- send information about the link to the first terminal device.
5 more elements
Dependencies are inferred from the claim text.