Electronic device and method for wireless communication, and computer-readable storage medium

Patent metadata

Field	Value
Publication number	US-12401455-B2
Application number	US-202118005673-A
Country	US
Kind code	B2
Filing date	Aug 26, 2021
Priority date	Sep 2, 2020
Publication date	Aug 26, 2025
Grant date	Aug 26, 2025

Abstract

Provided are an electronic device and method for wireless communication, and a computer-readable storage medium. The electronic device for wireless communication comprises a processing circuit, which is configured to at least select, from a candidate resource set formed of predetermined candidate time-frequency resource blocks, a time-frequency resource block for the initial transmission and/or retransmission of a data block.

First claim

The invention claimed is:

1. An electronic apparatus for wireless communications, comprising:
processing circuitry configured to
select a time-frequency resource block for initially transmitting a data block or a time-frequency resource block for retransmitting a data block from at least a candidate resource set including predetermined candidate time-frequency resource blocks;
divide a resource selection window that includes the candidate resource set into a predetermined number of sub-resource selection windows along a time axis, such that each of the sub-resource selection windows has substantially the same time duration; and
select a candidate time-frequency resource block, from at least an earliest one of the sub-resource selection windows which includes at least one candidate time-frequency resource block, as the time-frequency resource block for initially transmitting the data block, wherein

the processing circuitry is further configured to
in a case that the candidate resource set does not include candidate time-frequency resource blocks which satisfy a predetermined retransmission time interval for retransmitting the data block based on a hybrid automatic repeat request acknowledgement (HARQ-ACK), increase a threshold of a reference signal received power (RSRP) to increase the number of the candidate time-frequency resource blocks in the candidate resource set, and select candidate time-frequency resource blocks satisfying the predetermined retransmission time interval from the candidate resource set that includes an increased number of candidate time-frequency resource blocks for retransmitting the data block, and
select a time-frequency resource block that has a RSRP lower than the threshold as a candidate time-frequency resource block in the candidate resource set in a resource awareness period in which the candidate time-frequency resource block is predetermined.

2. The electronic apparatus according to claim 1 , wherein
the processing circuitry is further configured to
select a candidate time-frequency resource block satisfying a predetermined condition, from candidate time-frequency resource blocks that follow the time-frequency resource block that is selected for initially transmitting the data block in the resource selection window, as the time-frequency resource block for retransmitting the data block.

3. The electronic apparatus according to claim 1 , wherein
in addition to the predetermined candidate time-frequency resource blocks, the candidate resource set further includes one or more candidate time-frequency resource blocks included in an abnormal resource pool which is different from a preconfigured resource pool that includes the predetermined candidate time-frequency resource blocks, and
the resource selection window further includes the one or more candidate time-frequency resource blocks included in the abnormal resource pool.

4. The electronic apparatus according to claim 1 , wherein
the processing circuitry is further configured to
between retransmitting the data block twice respectively using two time-frequency resource blocks based on a hybrid automatic repeat request acknowledgement (HARQ-ACK), perform at least one blind retransmission of the data block using at least one candidate time-frequency resource block included in an abnormal resource pool which is different from a preconfigured resource pool that includes the predetermined candidate time-frequency resource blocks.

5. An electronic apparatus for wireless communications, comprising:
processing circuitry configured to
select a time-frequency resource block for initially transmitting a data block or a time-frequency resource block for retransmitting a data block from at least a candidate resource set including predetermined candidate time-frequency resource blocks;
divide a resource selection window that includes the candidate resource set into a predetermined number of sub-resource selection windows, such that each of the sub-resource selection windows includes substantially the same number of candidate time-frequency resource blocks; and
select a candidate time-frequency resource block from an earliest one of the sub-resource selection windows as the time-frequency resource block for initially transmitting the data block, wherein

the processing circuitry is further configured to
in a case that the candidate resource set does not include candidate time-frequency resource blocks which satisfy a predetermined retransmission time interval for retransmitting the data block based on a hybrid automatic repeat request acknowledgement (HARQ-ACK), select candidate time-frequency resource blocks satisfying the predetermined retransmission time interval from at least one candidate time-frequency resource block included in an abnormal resource pool which is different from a preconfigured resource pool that includes the predetermined candidate time-frequency resource blocks for retransmitting the data block.

6. The electronic apparatus according to claim 5 , wherein
the processing circuitry is further configured to
select a candidate time-frequency resource block satisfying a predetermined condition, from candidate time-frequency resource blocks that follow the time-frequency resource block that is selected for initially transmitting the data block in the resource selection window, as the time-frequency resource block for retransmitting the data block.

7. The electronic apparatus according to claim 5 , wherein
the processing circuitry is further configured to
in a case that the candidate resource set does not include candidate time-frequency resource blocks satisfying a predetermined retransmission time interval for retransmitting the data block based on a hybrid automatic repeat request acknowledgement (HARQ-ACK), change a method for retransmitting the data block by adding a field that indicates a method for retransmitting the data block in control information of data transmission, and
the field is used to indicate that the retransmission of the data block is performed based on one of a hybrid automatic repeat request acknowledgement (HARQ-ACK), a blind retransmission, and a hybrid retransmission including the HARQ-ACK and the blind retransmission.

8. The electronic apparatus according to claim 7 , wherein
the control information is sidelink control information SCI.

9. The electronic apparatus according to claim 5 , wherein
the processing circuitry is further configured to
select a time-frequency resource block for initially transmitting the data block or a time-frequency resource block for retransmitting the data block in a scenario of sidelink resource selection mode 2.

Assignees

• Sony Group Corp

Inventors

• Wang Xiaoxue
• Sun Chen

Classifications

• H04W72/02 Primary

  Selection of wireless resources by user or terminal · CPC title

• H04W72/0453

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

• H04W72/0446 Primary

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

• H04L5/0055

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

• H04L2001/0092

  Error control systems characterised by the topology of the transmission link · CPC title