Electronic device, method, and storage medium for wireless communication

Patent metadata

Field	Value
Publication number	US-12501404-B2
Application number	US-202118017676-A
Country	US
Kind code	B2
Filing date	Jul 30, 2021
Priority date	Aug 3, 2020
Publication date	Dec 16, 2025
Grant date	Dec 16, 2025

Abstract

The present disclosure relates to an electronic device, a method, and a storage medium for a wireless communication system. Various embodiments regarding resource allocation and management for sidelink communication are described. In an embodiment, an electronic device for a first terminal device includes a processing circuit configured to: search for time-frequency resources based on at least two allocation modes to obtain a candidate resource set; select a time-frequency resource from the candidate resource set; and notify a second terminal device of the selected time-frequency resource to be used for sidelink communication with the second terminal device. The processing circuit is further configured to send resource selection information to a base station, where the resource selection information indicates whether a specified resource is selected.

First claim

The invention claimed is:

1 . An electronic device for a first terminal device, wherein the electronic device comprises a processing circuit, and the processing circuit is configured to:
search for time-frequency resources based on at least two allocation modes to obtain a candidate resource set; select a time-frequency resource from the candidate resource set; notify a second terminal device of the selected time-frequency resource to be used for sidelink communication with the second terminal device; and send resource selection information to a base station, wherein the resource selection information indicates whether a specified resource is selected, wherein the search for the time-frequency resources based on at least two allocation modes comprises: for a first allocation mode, sending a resource scheduling request message to the base station, and receiving a resource grant message from the base station; and for a third allocation mode, sending a resource scheduling request message to a cluster scheduling device, and receiving a resource grant message from the cluster scheduling device, wherein the candidate resource set comprises time-frequency resources corresponding to the first and third allocation modes.

2 . The electronic device of claim 1 , wherein the searching for time-frequency resources based on at least two allocation modes further comprises:
for a second allocation mode, perceiving and searching for time-frequency resources, wherein the candidate resource set further comprises time-frequency resources corresponding to the second allocation mode.

3 . The electronic device of claim 2 , wherein the perceiving and searching for time-frequency resources for the second allocation mode comprises:
perceiving resources in a resource window, and selecting a desired resource based on a perception result.

4 . The electronic device of claim 2 , wherein the selecting the time-frequency resource comprises:
selecting the time-frequency resource based on a QoS requirement of sidelink communication and attributes of time-frequency resources in the candidate resource set, wherein a time-frequency resource corresponding to one or more allocation modes is selected.

5 . The electronic device of claim 4 , wherein the resource selection information indicates, to the base station, whether a time-frequency resource corresponding to the first allocation mode is selected.

6 . The electronic device of claim 5 , wherein the resource selection information further indicates, to the base station, a time-frequency resource selected from time-frequency resources corresponding to the second or third allocation mode.

7 . The electronic device of claim 1 , wherein the first terminal device is used as the cluster scheduling device, and the processing circuit is configured to:
send a resource pool scheduling request message to the base station, and receive a resource pool grant message from the base station; and in response to a resource scheduling request message from a specified terminal device, select a time-frequency resource from the resource pool, so as to provide grant for the specified terminal device.

8 . The electronic device of claim 1 , the processing circuit is further configured to: receive, from the base station, parameter configurations of the at least two allocation modes by using radio resource control RRC signaling.

9 . The electronic device of claim 1 , where the processing circuit is further configured to: receive, from the second terminal device, information on a time-frequency resource selected by the second terminal device, where the information on the time-frequency resource is used for receiving sidelink communication from the second terminal device.

10 . The electronic device of claim 1 , wherein the processing circuit is further configured to:
transmit specific time-frequency resource information or index by using sidelink control information to notify the second terminal device of the selected time-frequency resource.

11 . A method for wireless communication, comprising:
by a first terminal device: searching for time-frequency resources based on at least two allocation modes to obtain a candidate resource set; selecting a time-frequency resource from the candidate resource set; notifying a second terminal device of the selected time-frequency resource to be used for sidelink communication with the second terminal device; and sending resource selection information to a base station, wherein the resource selection information indicates whether a specified resource is selected, wherein the searching for the time-frequency resources based on at least two allocation modes comprises: for a first allocation mode, sending a resource scheduling request message to the base station, and receiving a resource grant message from the base station; and for a third allocation mode, sending a resource scheduling request message to a cluster scheduling device, and receiving a resource grant message from the cluster scheduling device, wherein the candidate resource set comprises time-frequency resources corresponding to the first and third allocation modes.

12 . The method of claim 11 , wherein the searching for time-frequency resources based on at least two allocation modes further comprises:
for a second allocation mode, perceiving and searching for time-frequency resources, wherein the candidate resource set further comprises time-frequency resources corresponding to the second allocation mode.

Assignees

• Sony Group Corp

Inventors

• Hou Yanzhao
• Tao Xiaofeng
• Wen Yang
• Wang Chengrui
• Wang Xiaoxue
• Liu Min
• Sun Chen

Classifications

• H04W28/18

  Negotiating wireless communication parameters · CPC title

• H04W72/0453

  Resources in frequency domain, e.g. a carrier in FDMA · CPC title

• H04W72/0446

  Resources in time domain, e.g. slots or frames · CPC title

• H04W72/25 Primary

  between terminals via a wireless link, e.g. sidelink · CPC title

• H04W72/02 Primary

  Selection of wireless resources by user or terminal · CPC title