US 12,192,930 B2
Method and apparatus for transmiting and receiving synchronization signal in new radio vehicle to everything system
Dong Hyun Park, Seoul (KR); and Sung Jun Yoon, Seoul (KR)
Assigned to Innovative Technology Lab Co., Ltd., Seoul (KR)
Filed by Innovative Technology Lab Co., Ltd., Seoul (KR)
Filed on Feb. 14, 2024, as Appl. No. 18/441,529.
Application 18/441,529 is a continuation of application No. 17/172,604, filed on Feb. 10, 2021, granted, now 11,937,194.
Application 17/172,604 is a continuation of application No. PCT/KR2019/010411, filed on Aug. 16, 2019.
Claims priority of application No. 10-2018-0096338 (KR), filed on Aug. 17, 2018.
Prior Publication US 2024/0188009 A1, Jun. 6, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 4/40 (2018.01); G01S 19/05 (2010.01); H04L 27/26 (2006.01); H04W 56/00 (2009.01); H04W 72/02 (2009.01); H04W 72/0446 (2023.01); H04W 92/18 (2009.01)
CPC H04W 56/001 (2013.01) [G01S 19/05 (2013.01); H04L 27/26025 (2021.01); H04W 4/40 (2018.02); H04W 72/02 (2013.01); H04W 72/0446 (2013.01); H04W 92/18 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A wireless user device comprising:
at least one antenna;
at least one processor; and
a memory storing instructions that, when executed by the at least one processor, cause the wireless user device to:
determine a global navigation satellite system (GNSS) as a synchronization reference source associated with a sidelink synchronization;
determine a slot number for sidelink communication, based on:
the GNSS being the synchronization reference source associated with a sidelink synchronization;
a subcarrier spacing index for sidelink; and
one or more time parameters associated with the GNSS, wherein the determining the slot number is based on Floor((Tcurrent−Tref−OffsetDFN)*2μ)mod(10*2μ), where Tcurrent is a current Coordinated Universal Time (UTC) time obtained from the GNSS, Tref is a reference UTC time, OffsetDFN is, if configured, a direct frame number (DFN) offset value associated with a sidelink DFN or, if not configured, zero, and, wherein μ is the subcarrier spacing index for sidelink; and
transmit, based on the slot number, a sidelink synchronization signal from the wireless user device to a second wireless user device.