US 12,108,353 B2
Time synchronization method, UE, base station, device and computer readable storage medium
Feifei Sun, Beijing (CN); Qi Xiong, Beijing (CN); Chen Qian, Beijing (CN); and Bin Yu, Beijing (CN)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Appl. No. 17/430,861
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
PCT Filed Feb. 14, 2020, PCT No. PCT/KR2020/002090
§ 371(c)(1), (2) Date Aug. 13, 2021,
PCT Pub. No. WO2020/167013, PCT Pub. Date Aug. 20, 2020.
Claims priority of application No. 201910115006.6 (CN), filed on Feb. 14, 2019; application No. 201910335867.5 (CN), filed on Apr. 24, 2019; and application No. 201910924951.0 (CN), filed on Sep. 27, 2019.
Prior Publication US 2022/0039045 A1, Feb. 3, 2022
Int. Cl. H04W 56/00 (2009.01); H04J 3/06 (2006.01)
CPC H04W 56/0045 (2013.01) [H04J 3/0682 (2013.01); H04W 56/0015 (2013.01); H04W 56/0055 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A time synchronization method performed by a user equipment (UE) in a wireless communication system, the method comprising:
receiving, from a base station (BS), a message including information related to propagation delay compensation and reference time information including time uncertainty information;
receiving, from the BS, time difference information indicating a receiving and transmitting time difference measured at the BS based on a sounding reference signal (SRS);
identifying a reference time based on the reference time information; and
performing the propagation delay compensation based on the time difference information,
wherein the information related to propagation delay compensation indicates whether a propagation delay compensation is to be performed by the UE or not to be performed by the UE.