US 12,232,076 B2
Method for positioning sidelink and device therefor
Jongseob Baek, Seoul (KR); Hanbyul Seo, Seoul (KR); and Woosuk Ko, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/798,472
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Feb. 19, 2021, PCT No. PCT/KR2021/002112
§ 371(c)(1), (2) Date Aug. 9, 2022,
PCT Pub. No. WO2021/167393, PCT Pub. Date Aug. 26, 2021.
Claims priority of application No. 10-2020-0020963 (KR), filed on Feb. 20, 2020; application No. 10-2020-0021350 (KR), filed on Feb. 21, 2020; and application No. 10-2020-0024909 (KR), filed on Feb. 28, 2020.
Prior Publication US 2023/0076030 A1, Mar. 9, 2023
Int. Cl. G01S 13/87 (2006.01); H04W 64/00 (2009.01); H04W 92/18 (2009.01)
CPC H04W 64/006 (2013.01) [G01S 13/876 (2013.01); H04W 92/18 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of performing positioning by a user equipment (UE) mounted in a positioning vehicle in a cellular vehicle-to-everything (C-V2X) communication system, the method comprising:
measuring a time of flight (ToF) by performing round trip time (RTT) ranging with a road side unit (RSU);
determining a positioning mode, wherein the positioning mode includes a self-positioning mode and a cooperative positioning mode;
measuring a relative position of a neighbor vehicle using a sensor mounted in the positioning vehicle based on the determined positioning mode being the cooperative positioning mode, and storing first positioning measurement information related to the measured relative position;
selecting a neighbor vehicle to perform cooperative positioning;
transmitting the first positioning measurement information to the selected neighbor vehicle;
receiving second positioning measurement information from the selected neighbor vehicle; and
determining a current position of the positioning vehicle based on the first positioning measurement information and the second positioning measurement information.