US 12,156,215 B2
Method by which terminal reallocates transmission resources by considering transmission resources between traveling groups in wireless communication system that supports sidelink, and apparatus therefor
Youngdae Kim, Seoul (KR); Hyunmin Kim, Seoul (KR); and Byounggill Kim, Seoul (KR)
Assigned to LG Electronics Inc., Seoul (KR)
Appl. No. 17/779,057
Filed by LG Electronics Inc., Seoul (KR)
PCT Filed Dec. 16, 2019, PCT No. PCT/KR2019/017774
§ 371(c)(1), (2) Date May 23, 2022,
PCT Pub. No. WO2021/125365, PCT Pub. Date Jun. 24, 2021.
Prior Publication US 2023/0107971 A1, Apr. 6, 2023
Int. Cl. H04W 4/00 (2018.01); H04L 5/00 (2006.01); H04W 4/02 (2018.01); H04W 4/46 (2018.01); H04W 72/121 (2023.01); H04W 72/20 (2023.01)
CPC H04W 72/20 (2023.01) [H04L 5/0096 (2013.01); H04W 4/023 (2013.01); H04W 4/46 (2018.02); H04W 72/121 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method of reallocating, by a first user equipment (UE), second resources for transmission of a PSSCH (physical sidelink shared channel) in a wireless communication system supporting sidelink, the method comprising:
receiving configuration information on a resource pool;
selecting first resources in the resource pool;
obtaining first reserved resources from a second PSCCH (physical sidelink control channel) of a neighboring UE;
excluding a specific resource overlapping the reserved resource from the first resources based on a reception strength of the second PSCCH and the first reserved resources;
transmitting a first PSCCH allocating second resources from which the specific resource is excluded from the first resource;
obtaining information on second reserved resources from a third PSCCH of the neighboring UE after transmitting the first PSCCH; and
determining whether to reallocate the second resources based on the third PSCCH,
wherein the third PSCCH includes (i) second group information on a second driving group driving in a lane different from the first driving group including the first UE and (ii) information on the second reserved resources for a transmission and reception of a signal between the second driving group and a third driving group, and
wherein whether to reallocate the second resources is determined based on the second group information and the second reserved resources.