Electronic device, wireless communication method, and computer readable medium

Patent metadata

Field	Value
Publication number	US-12040900-B2
Application number	US-202017424167-A
Country	US
Kind code	B2
Filing date	Feb 6, 2020
Priority date	Feb 13, 2019
Publication date	Jul 16, 2024
Grant date	Jul 16, 2024

Abstract

The present invention relates to an electronic device, a wireless communication method, and a computer readable medium. According to one embodiment, the electronic device used for wireless communication comprises a processing circuit. The processing circuit is configured to perform control to send data and information related to retransmission of the data to a target user equipment by means of a sidelink. The processing circuit is further configured to control operation for the retransmission of the data.

First claim

The invention claimed is:

1. An electronic device for wireless communication, comprising processing circuitry configured to:
perform control to transmit data and information on retransmission of the data to a target user equipment via a sidelink; and
control an operation for retransmission of the data based on the information,
wherein the information comprises time domain position information of feedback information relating to a feedback of the data; and
wherein the time domain position information comprises a time domain position for receiving the feedback information and/or a time window for receiving the feedback information, and
wherein the operation comprises:
receiving the feedback information successively at the time domain position and/or in the time window until the feedback information is received, and
performing a retransmission of the data based on the feedback information not being received at the time domain position and/or in the time window.

2. The electronic device according to claim 1 , wherein
the information comprises a time gap between an initial transmission and the retransmission of the data; and
the operation comprises performing the retransmission of the data according to the time gap.

3. The electronic device according to claim 1 , wherein the information further comprises information indicating a retransmission unit; and
the operation comprises receiving the feedback information and performing the retransmission of the data in units of a transmission block or a code block group based on the information indicating the retransmission unit.

4. The electronic device according to claim 3 ,
wherein the operation comprises receiving the feedback information and performing the retransmission of the data in units of a code block group, and
wherein the feedback information comprises codebook information.

5. The electronic device according to claim 1 , wherein the information comprises one or more of:
resource reservation, a source user equipment identification, a target user equipment identification, a frequency domain position for an initial transmission and the retransmission, a frequency domain position for the initial transmission and a transmission of the feedback information, a modulation and coding scheme, a retransmission index, code block group transmission information, or a service priority of the data.

6. The electronic device according to claim 1 , wherein the operation further comprises:
decoding the received feedback information; and
determining whether the decoded feedback information is for the data.

7. The electronic device according to claim 1 ,
wherein the feedback information comprises information on retransmission resources for the data; and
the operation further comprises:
determining retransmission resources for retransmitting the data according to the information on retransmission resources; and
performing the retransmission based on the retransmission resources.

8. An electronic device for wireless communication, comprising processing circuitry configured to:
perform control to receive data and information on a retransmission of the data from source user equipment via a sidelink; and
based on the information, control an operation for the retransmission of the data,
wherein the information comprises time domain position information of feedback information relating to a feedback of the data;
wherein the time domain position information comprises one or more time domain positions for transmitting the feedback information and/or one or more time windows for transmitting the feedback information;
the operation comprises:
transmitting the feedback information at one of the one or more time domain positions or in one of the one or more time windows; and
receiving the retransmission of the data based on the feedback information.

9. The electronic device according to claim 8 , wherein the information comprises a time gap between an initial transmission and the retransmission of the data; and
the operation comprises receiving the retransmission of the data according to the time gap.

10. The electronic device according to claim 8 , wherein the information further comprises information indicating a retransmission unit; and
the operation comprises transmitting the feedback information in units of a transmission block or a code block group based on the information indicating the retransmission unit.

11. The electronic device according to claim 8 , wherein the information comprises a service priority of the data; and
the operation comprises:
transmitting the feedback information and receiving other data based on the service priority; and/or
transmitting the feedback information for a plurality of links based on the service priority.

12. The electronic device according to claim 11 , wherein the operation further comprises:
selecting, according to the priority, a link for which the feedback information is to be transmitted, in a case where the number of the plurality of links exceeds a predetermined threshold.

13. The electronic device according to claim 11 , wherein the operation further comprises distinguishing the feedback information for the plurality of links from each other by:
comprising identification information of corresponding source user equipment in the feedback information; and/or
scrambling the feedback information with a codebook.

14. The electronic device according to claim 8 :
wherein the information comprises information on a retransmission resource for the data, and
wherein the operation further comprises receiving the retransmission of the data based on the information on the retransmission resource.

15. A method performed by a wireless communication device, the method comprising:
transmitting data and information on retransmission of the data to a target user equipment via a sidelink; and
performing an operation for retransmission of the data based on the information,
wherein the information comprises time domain position information of feedback information relating to a feedback of the data; and
wherein the time domain position information comprises a time domain position for receiving the feedback information and/or a time window for receiving the feedback information, and
wherein the operation comprises:
receiving the feedback information successively at the time domain position and/or in the time window until the feedback information is received, and
performing a retransmission of the data based on the feedback information not being received at the time domain position and/or in the time window.

Assignees

• Sony Group Corp

Inventors

• Hou Yanzhao
• Zhu Min
• Gao Lei
• Guo Xin
• Sun Chen
• Wang Bing
• Tao Xiaofeng

Classifications

• H04W72/20

  Control channels or signalling for resource management · CPC title

• H04L1/1812

  Hybrid protocols; Hybrid automatic repeat request [HARQ] · CPC title

• H04L5/0055

  Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861) · CPC title

• H04L5/0053

  Allocation of signalling, i.e. of overhead other than pilot signals · CPC title

• H04L1/1854

  Scheduling and prioritising arrangements · CPC title