US 11,889,442 B2
Method and device for transmitting and receiving synchronization signal of device-to-device communication terminal in wireless communication system
Hyukjin Chae, Seoul (KR); Hanbyul Seo, Seoul (KR); and Seungmin Lee, Seoul (KR)
Assigned to LG Electronics Inc., Seoul (KR)
Filed by LG Electronics Inc., Seoul (KR)
Filed on Jul. 11, 2022, as Appl. No. 17/861,965.
Application 17/861,965 is a continuation of application No. 16/799,058, filed on Feb. 24, 2020, granted, now 11,388,687.
Application 16/799,058 is a continuation of application No. 16/064,730, granted, now 10,575,269, issued on Feb. 25, 2020, previously published as PCT/KR2017/010726, filed on Sep. 27, 2017.
Claims priority of provisional application 62/458,590, filed on Feb. 14, 2017.
Claims priority of provisional application 62/458,562, filed on Feb. 13, 2017.
Claims priority of provisional application 62/426,219, filed on Nov. 23, 2016.
Claims priority of provisional application 62/407,513, filed on Oct. 12, 2016.
Claims priority of provisional application 62/403,050, filed on Sep. 30, 2016.
Claims priority of provisional application 62/400,623, filed on Sep. 27, 2016.
Prior Publication US 2022/0353833 A1, Nov. 3, 2022
Int. Cl. H04W 56/00 (2009.01); H04B 7/185 (2006.01); H04W 72/0446 (2023.01); H04W 72/23 (2023.01); H04W 72/30 (2023.01); H04W 72/51 (2023.01)
CPC H04W 56/001 (2013.01) [H04B 7/18523 (2013.01); H04B 7/18582 (2013.01); H04W 56/002 (2013.01); H04W 56/0015 (2013.01); H04W 72/0446 (2013.01); H04W 72/23 (2023.01); H04W 72/30 (2023.01); H04W 72/51 (2023.01)] 6 Claims
OG exemplary drawing
 
1. A method performed by a second user equipment (UE) in a wireless communication system, the method comprising;
receiving, by the second UE from a first UE directly synchronized to a Global Navigation Satellite System (GNSS), a first sidelink synchronization signal (SLSS) with a first SLSS ID,
selecting, by the second UE, a second SLSS ID for a second SLSS based on the received first SLSS; and
transmitting, by the second UE, the second SLSS,
wherein, based on the first UE is out of a cell coverage and the first SLSS is received on a first resource, a first value related to GNSS-synchronization propagation through the out of the cell coverage is selected as the second SLSS ID, and
wherein, based on the first UE is in the cell coverage and the first SLSS is received on a second resource, a second value related to GNSS-synchronization propagation through the out of the cell coverage is selected as the second SLSS ID.