US 12,137,475 B2
Method and device for determining sidelink resource in NR V2X
Seungmin Lee, Seoul (KR)
Assigned to LG Electronics Inc., Seoul (KR)
Appl. No. 17/771,372
Filed by LG Electronics Inc., Seoul (KR)
PCT Filed Oct. 23, 2020, PCT No. PCT/KR2020/014582
§ 371(c)(1), (2) Date Apr. 22, 2022,
PCT Pub. No. WO2021/080376, PCT Pub. Date Apr. 29, 2021.
Claims priority of application No. 10-2019-0132545 (KR), filed on Oct. 23, 2019.
Prior Publication US 2022/0377749 A1, Nov. 24, 2022
Int. Cl. H04W 72/542 (2023.01); H04L 5/00 (2006.01); H04W 28/26 (2009.01); H04W 72/02 (2009.01); H04W 72/0446 (2023.01); H04W 72/20 (2023.01); H04W 72/56 (2023.01)
CPC H04W 72/542 (2023.01) [H04L 5/0051 (2013.01); H04W 28/26 (2013.01); H04W 72/02 (2013.01); H04W 72/0446 (2013.01); H04W 72/20 (2023.01); H04W 72/56 (2023.01)] 20 Claims
OG exemplary drawing
 
1. A method for performing sidelink (SL) communication with a second device by a first device, the method comprising:
determining a first resource for first sidelink transmission;
receiving, from the second device or a third device, on an Nth slot, Sidelink Control Information (SCI) including information related to a second resource for second sidelink transmission;
determining, based on a demodulation reference signal (DMRS) Reference Signal Received Power (RSRP) threshold value and a DMRS RSRP measurement value of a first Physical Sidelink Control Channel (PSCCH) or a first Physical Sidelink Shared Channel (PSSCH) related to the SCI, whether to reselect the first resource overlapping with the second resource on an (N+K)th slot spaced from the Nth slot by K slot length; and
transmitting, to the second device, a second PSCCH related to the first sidelink transmission or a second PSSCH related to the second PSCCH, based on the basis of the determination on whether to reselect,
wherein at least one resource for the first sidelink transmission, including the first resource, is determined based on P slot length, which is a resource reservation period related to the first sidelink transmission, and
wherein the N, the K, and the P are positive integers.