US 12,143,230 B2
Sidelink signal transmission method in wireless communication system
Giwon Park, Seoul (KR); Seungmin Lee, Seoul (KR); Hanbyul Seo, Seoul (KR); and Jongyoul Lee, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/310,919
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Mar. 19, 2020, PCT No. PCT/KR2020/003801
§ 371(c)(1), (2) Date Aug. 31, 2021,
PCT Pub. No. WO2020/190064, PCT Pub. Date Sep. 24, 2020.
Claims priority of application No. 10-2019-0031265 (KR), filed on Mar. 19, 2019.
Prior Publication US 2022/0140956 A1, May 5, 2022
Int. Cl. H04L 12/00 (2006.01); H04L 1/1812 (2023.01); H04L 1/1867 (2023.01); H04W 72/20 (2023.01); H04W 4/40 (2018.01)
CPC H04L 1/1893 (2013.01) [H04L 1/1812 (2013.01); H04W 72/20 (2023.01); H04W 4/40 (2018.02)] 6 Claims
OG exemplary drawing
 
1. A method of transmitting and receiving a sidelink signal by a first user equipment (UE) in a wireless communication system, the method comprising:
receiving a first control signal for allocating one or more first resources from a base station;
transmitting a first sidelink signal to a second UE on the one or more first resources;
receiving hybrid automatic repeat request (HARQ) negative acknowledgement (NACK) feedback for the first sidelink signal from the second UE;
receiving a second control signal for allocating a second resource as an initial transmission resource of a second sidelink signal following the first sidelink signal from the base station; and
retransmitting the first sidelink signal to the second UE on the second resource based on the one or more first resources being insufficient to retransmit the first sidelink signal.