US 12,471,063 B2
Sidelink resource determining method, apparatus, and system
Haibo Xu, Beijing (CN); Xiao Xiao, Shenzhen (CN); Dongdong Wei, Shanghai (CN); Jun Wang, Shanghai (CN); and Jian Wang, Beijing (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Appl. No. 17/630,204
Filed by HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
PCT Filed Aug. 17, 2020, PCT No. PCT/CN2020/109626
§ 371(c)(1), (2) Date Jan. 26, 2022,
PCT Pub. No. WO2021/032064, PCT Pub. Date Feb. 25, 2021.
Claims priority of application No. 201910760444.8 (CN), filed on Aug. 16, 2019.
Prior Publication US 2022/0295450 A1, Sep. 15, 2022
Int. Cl. H04W 72/02 (2009.01); H04L 1/08 (2006.01); H04L 1/1812 (2023.01); H04L 5/00 (2006.01); H04W 72/0453 (2023.01); H04W 72/56 (2023.01)
CPC H04W 72/02 (2013.01) [H04L 1/08 (2013.01); H04L 1/1812 (2013.01); H04L 5/0053 (2013.01); H04W 72/0453 (2013.01); H04W 72/56 (2023.01)] 18 Claims
OG exemplary drawing
 
1. A method, comprising:
sending, by a first communications apparatus, a first data packet to a second communications apparatus via a first sidelink resource, wherein the first sidelink resource is a sidelink resource configured by a network device for the first communications apparatus;
determining, by the first communications apparatus, that the second communications apparatus fails to decode the first data packet, when the first communications apparatus does not receive either acknowledgment (ACK) or negative acknowledgment (NACK) for the first data packet from the second communications apparatus;
feeding back, by the first communications apparatus, first indication information to the network device indicates that the second communications apparatus fails to decode the first data packet;
receiving, by the first communications apparatus, a first configuration message from the network device, wherein the first configuration message comprises a second sidelink resource associated with a sidelink hybrid automatic repeat request (HARQ) process;
after receiving the first configuration message, using, by the first communications apparatus, the second sidelink resource associated with the sidelink HARQ process to retransmit the first data packet to the second communications apparatus.