US 12,207,161 B2
Improving sidelink positioning via messaging between wireless nodes
Chang-Sik Choi, Seoul (KR); Kapil Gulati, Belle Mead, NJ (US); and Sudhir Kumar Baghel, Pleasanton, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on May 12, 2023, as Appl. No. 18/316,729.
Application 18/316,729 is a division of application No. 17/336,274, filed on Jun. 1, 2021, granted, now 11,689,890.
Claims priority of provisional application 63/033,798, filed on Jun. 2, 2020.
Prior Publication US 2023/0283991 A1, Sep. 7, 2023
Int. Cl. H04W 4/02 (2018.01); G01S 5/02 (2010.01); H04L 5/00 (2006.01); H04W 4/029 (2018.01); H04W 4/40 (2018.01); H04W 56/00 (2009.01)
CPC H04W 4/029 (2018.02) [G01S 5/02216 (2020.05); H04L 5/0048 (2013.01); H04W 4/40 (2018.02); H04W 56/001 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method for wireless communications performed by a first wireless node, comprising:
transmitting a first positioning reference signal (PRS) at a first time;
receiving a second PRS from a second wireless node at a second time;
receiving, from the second wireless node, a first message indicating a third time when the second wireless node received the first PRS and a fourth time when the second wireless node transmitted the second PRS;
estimating a clock error component between the first wireless node and the second wireless node, using the first time, the second time, the third time, and the fourth time; and
transmitting, to a user equipment (UE), a second message indicating the clock error component.