Electronic device, wireless communication method, and computer-readable storage medium related to resource selection window size thresholds

Patent metadata

Field	Value
Publication number	US-12418369-B2
Application number	US-202118004450-A
Country	US
Kind code	B2
Filing date	Jul 28, 2021
Priority date	Aug 4, 2020
Publication date	Sep 16, 2025
Grant date	Sep 16, 2025

Abstract

The present disclosure relates to an electronic device, a wireless communication method and a computer-readable storage medium. The electronic device of the present disclosure comprises a processing circuit, which is configured to: discontinuously sense, in a time domain, whether a resource in a resource pool is idle; and according to a sensing result, determine a resource for a transmission process of a hybrid automatic repeat request (HARQ), the transmission process comprising an initial transmission process and a retransmission process. By using the electronic device, wireless communication method and computer-readable storage medium of the present disclosure, a user equipment can support both partial sensing and HARQ techniques.

First claim

The invention claimed is:

1. An electronic device, comprising:
processing circuitry configured to:
sense, in first and second sensing windows that are discontinuous in a time domain, plural resources in either the first and second sensing windows that are idle, the plural resources that are sensed corresponding to a pool of resources for transmission and retransmission;
determine a plurality of resource selection windows that follow the first and second sensing windows and that are discontinuous in the time domain, each of the plurality of resource selection windows comprising the pool of resources for transmission and retransmission; and
perform a transmission process that includes an initial transmission and at least two retransmissions in one or more resource selection windows of the plurality of resource selection windows,
wherein the initial transmission and the at least two retransmissions are performed in resources in the one or more resource selection windows that correspond to resources that have been determined to be idle in both the first and second sensing windows,
wherein a total number of transmissions/retransmissions of the transmission process is K, where K is an integer≥3, and
wherein the processing circuitry is further configured to:
determine a resource selection window size that is applied to each of the plurality resource selection windows based on the total number K,
determine whether the resource selection window size exceeds a resource selection window size threshold and generate a determination result, and
control the transmission process that includes the initial transmission and the at least two retransmissions based on the determination result.

2. The electronic device according to claim 1 , wherein the resource selection window size increases as the total number K increases.

3. The electronic device according to claim 1 , wherein the processing circuitry is further configured to:
based on the resource selection window size that is determined based on the total number K, determine a sensing window size that is applied to the first and second sensing windows, such that the sensing window size is equal to or greater than the resource selection window size.

4. The electronic device according to claim 1 ,
wherein, upon the determination result indicating the resource selection window size does not exceed the resource selection window size threshold, all transmissions of the initial transmission and the at least two retransmissions are performed in resources that exist only in a first of the one or more resource selection windows, and
wherein, upon the determination result indicating that the resource selection window size does exceed the resource selection window size threshold, some transmissions of the initial transmission and the at least two retransmissions are performed in resources in the first resource selection window, and other transmissions of the initial transmission and the at least two retransmissions are performed in resources in a second resource selection window that follows the first resource selection window.

5. The electronic device according to claim 1 ,
wherein upon the determination result indicating that the resource selection window size does exceed the resource selection window size threshold, some transmissions of the initial transmission and the at least two retransmissions are performed in first resources existing in the one or more resource selection windows, and other transmissions of the initial transmission and the at least two retransmissions are performed in second resources existing in one or more resource random selection windows, and
wherein the one or more resource selection windows and the one or more resource random selection windows constitute corresponding subwindows, and the second resources are selected by the processing circuitry without first sensing whether the second resources are idle.

6. The electronic device according to claim 1 , wherein, upon the determination result indicating that the resource selection window size does exceed the resource selection window size threshold the processing circuitry discards at least one of the at least two retransmissions.

7. A wireless communication method performed by an electronic device, the wireless communication method comprising:
sensing, in first and second sensing windows that are discontinuous in a time domain, plural resources in either the first and second sensing windows that are idle, the plural resources that are sensed corresponding to a pool of resources for transmission and retransmission;
determining a plurality of resource selection windows that follow the first and second sensing windows and that are discontinuous in the time domain, each of the plurality of resource selection windows comprising the pool of resources for transmission and retransmission; and
performing a transmission process that includes an initial transmission and at least two retransmissions in one or more resource selection windows of the plurality of resource selection windows,
wherein the initial transmission and the at least two retransmissions are performed in resources in the one or more resource selection windows that correspond to resources that have been determined to be idle in both the first and second sensing windows,
wherein a total number of transmissions/retransmissions of the transmission process is K, where K is an integer≥3, and
wherein the method further comprises:
determining a resource selection window size that is applied to each of the plurality resource selection windows based on the total number K;
determining whether the resource selection window size exceeds a resource selection window size threshold and generating a determination result; and
controlling the transmission process that includes the initial transmission and the at least two retransmissions based on the determination result.

8. The wireless communication method according to claim 7 , wherein the resource selection window size increases as the total number K increases.

9. The wireless communication method according to claim 7 , wherein the wireless communication method further comprises:
based on the resource selection window size that is determined based on the total number K, determining a sensing window size that is applied to the first and second sensing windows, such that the sensing window size is equal to or greater than the resource selection window size.

10. The wireless communication method according to claim 7 ,
wherein, upon the determination result indicating that the resource selection window size does not exceed the resource selection window size threshold, all transmissions of the initial transmission and the at least two retransmissions are performed in resources that exist only in a first of the one or more resource selection windows, and
wherein, upon the determination result indicating that the resource selection window size does exceed the resource selection window size threshold, some transmissions of the initial transmission and the at least two retransmissions are performed in resources in the first resource selection window, and other transmissions of the initial transmission and the at least two retransmissions are performed in resources in a second resource selection window that follows the first resource selection window.

11. The wireless communication method according to claim 7 ,
wherein, upon the determination result indicating that the resource selection window size does exceed the resource selection window size threshold, some transmissions of the initial transmission and the at least two retransmissions are performed in first resources existing in

Assignees

• Sony Group Corp

Inventors

• Wu Zhikun
• Sun Chen

Classifications

• H04L1/1887 Primary

  Scheduling and prioritising arrangements · CPC title

• H04W72/02

  Selection of wireless resources by user or terminal · CPC title

• H04W72/12

  Wireless traffic scheduling · CPC title

• H04W40/12

  based on transmission quality or channel quality · CPC title

• H04W72/20

  Control channels or signalling for resource management · CPC title