US 12,302,307 B2
Method and apparatus for determining groupcast feedback resource, storage medium and user equipment
Yun Deng, Shanghai (CN)
Assigned to SPREADTRUM COMMUNICATIONS (SHANGHAI) CO., LTD., Shanghai (CN)
Appl. No. 17/624,711
Filed by SPREADTRUM COMMUNICATIONS (SHANGHAI) CO., LTD., Shanghai (CN)
PCT Filed Apr. 27, 2020, PCT No. PCT/CN2020/087111
§ 371(c)(1), (2) Date Jan. 4, 2022,
PCT Pub. No. WO2021/004136, PCT Pub. Date Jan. 14, 2021.
Claims priority of application No. 201910609888.1 (CN), filed on Jul. 8, 2019.
Prior Publication US 2022/0248414 A1, Aug. 4, 2022
Int. Cl. H04W 4/40 (2018.01); H04L 1/1812 (2023.01); H04L 5/00 (2006.01); H04W 4/08 (2009.01); H04W 72/02 (2009.01); H04W 72/0446 (2023.01); H04W 72/121 (2023.01); H04W 72/1263 (2023.01); H04W 72/20 (2023.01); H04W 72/231 (2023.01)
CPC H04W 72/121 (2013.01) [H04L 1/1812 (2013.01); H04L 5/0053 (2013.01); H04W 72/02 (2013.01); H04W 72/0446 (2013.01); H04W 72/1263 (2013.01); H04W 72/20 (2023.01)] 19 Claims
OG exemplary drawing
 
1. A method for determining a groupcast feedback resource, comprising:
a first Receiver (Rx) User Equipment (UE) receiving sidelink control information and transmission data from a Transmitter (Tx) UE, wherein the Tx UE transmits the sidelink control information and the transmission data to Rx UEs using a groupcast mode, wherein the Rx UEs and the Tx UE constitute a group;
determining positions of available feedback resources allocated for the Rx UEs at least based on the sidelink control information, wherein the sidelink control information directly or indirectly indicates the positions of the available feedback resources, and said determining positions of available feedback resources allocated for the Rx UEs at least based on the sidelink control information comprises determining the positions of the available feedback resources based on a position of a Physical Sidelink Shared Channel (PSSCH) indicated in the sidelink control information; and
determining the available feedback resource for the first Rx UE based on an intra-group identifier of the first Rx UE and a first preset mapping relationship between intra-group identifiers and the available feedback resources allocated for the Rx UEs.