US 11,974,241 B2
Method and device for transmitting or receiving synchronization signal in wireless communication system
Hyunseok Ryu, Suwon-si (KR); Jeongho Yeo, Suwon-si (KR); Jinyoung Oh, Suwon-si (KR); Sungjin Park, Suwon-si (KR); and Jonghyun Bang, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Appl. No. 17/309,145
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
PCT Filed Oct. 14, 2019, PCT No. PCT/KR2019/013442
§ 371(c)(1), (2) Date Apr. 29, 2021,
PCT Pub. No. WO2020/091264, PCT Pub. Date May 7, 2020.
Claims priority of application No. 10-2018-0133145 (KR), filed on Nov. 1, 2018.
Prior Publication US 2022/0015047 A1, Jan. 13, 2022
Int. Cl. H04W 72/04 (2023.01); H04W 4/40 (2018.01); H04W 56/00 (2009.01); H04W 92/18 (2009.01)
CPC H04W 56/001 (2013.01) [H04W 4/40 (2018.02); H04W 92/18 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method performed by a user equipment (UE) supporting vehicle-to-everything (V2X) communication in a wireless communication system, the method comprising:
receiving, from a base station, priority order information through radio resource control (RRC) signaling or a system information block (SIB), wherein the priority order information indicates a priority order of a global navigation satellite system (GNSS) and a base station, and wherein the base station includes at least one of an evolved node B (eNB) or a next-generation node B (gNB);
receiving, from a plurality of sidelink synchronization sources, a plurality of sidelink synchronization signals (SLSSs), based on the priority order information;
identifying at least one SLSS among the plurality of SLSSs, wherein the at least one SLSS is from sidelink synchronization sources having a same priority and reference signal received power (RSRP) values for the at least one SLSS exceed a preset threshold;
selecting a sidelink synchronization source with a largest RSRP value of the identified at least one SLSS; and
performing the V2X communication based on the selected sidelink synchronization source,
wherein the plurality of sidelink synchronization sources comprise at least one of the GNSS, the eNB, the gNB, or another UE.