US 12,219,507 B2
Periodic tracking reference signals for sidelink communications
Chih-Hao Liu, San Diego, CA (US); Jing Sun, San Diego, CA (US); Xiaoxia Zhang, San Diego, CA (US); Yisheng Xue, San Diego, CA (US); Tao Luo, San Diego, CA (US); Peter Gaal, San Diego, CA (US); and Sony Akkarakaran, Poway, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Feb. 17, 2022, as Appl. No. 17/651,569.
Prior Publication US 2023/0262621 A1, Aug. 17, 2023
Int. Cl. H04W 56/00 (2009.01); H04W 52/52 (2009.01); H04W 72/02 (2009.01); H04W 72/0446 (2023.01); H04W 72/0453 (2023.01); H04W 72/20 (2023.01)
CPC H04W 56/001 (2013.01) [H04W 52/52 (2013.01); H04W 72/02 (2013.01); H04W 72/0446 (2013.01); H04W 72/0453 (2013.01); H04W 72/20 (2023.01)] 30 Claims
OG exemplary drawing
 
1. A method of wireless communication performed by a first sidelink user equipment (UE), the method comprising:
receiving, from a second sidelink UE, an indicator indicating a tracking reference signal (TRS) periodicity;
receiving, from the second sidelink UE via a groupcast communication associated with a plurality of UEs, a TRS based on the TRS periodicity;
acquiring time and frequency synchronization with the second sidelink UE based on the TRS; and
receiving a physical sidelink shared channel (PSSCH) communication based on the time and frequency synchronization with the second sidelink UE.