US 11,985,666 B2
Method for determining feedback resource in sidelink and device
Xiaocui Li, Beijing (CN); Haibo Xu, Beijing (CN); and Yifan Xue, Beijing (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Appl. No. 17/422,326
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
PCT Filed Jan. 13, 2020, PCT No. PCT/CN2020/071812
§ 371(c)(1), (2) Date Jul. 12, 2021,
PCT Pub. No. WO2020/143834, PCT Pub. Date Jul. 16, 2020.
Claims priority of application No. 201910028788.X (CN), filed on Jan. 11, 2019.
Prior Publication US 2022/0110104 A1, Apr. 7, 2022
Int. Cl. H04W 72/20 (2023.01); H04L 1/1812 (2023.01)
CPC H04W 72/20 (2023.01) [H04L 1/1812 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for determining a feedback resource in a sidelink, the method comprising:
sending, using a first resource, data from a first terminal to a second terminal;
determining, based on a mapping relationship between the first resource and a second resource, the second resource or a first window including the second resource;
either receiving hybrid automatic repeat request (HARQ) feedback information from the second terminal on the second resource or monitoring resources in the first window for the HARQ feedback information from the second terminal;
monitoring sidelink control information (SCI) from another terminal;
determining, based on the SCI, a third resource for the other terminal to send data; and
determining the first resource based on the third resource.