US 12,218,816 B2
Timing advance determining method and communication apparatus
Xiaolu Wang, Hangzhou (CN); Hejia Luo, Hangzhou (CN); Ying Chen, Hangzhou (CN); Rong Li, Hangzhou (CN); and Bin Wang, Hangzhou (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., GuangDong (CN)
Filed on Aug. 12, 2022, as Appl. No. 17/886,739.
Application 17/886,739 is a continuation of application No. PCT/CN2020/121913, filed on Oct. 19, 2020.
Claims priority of application No. 202010093795.0 (CN), filed on Feb. 14, 2020; and application No. 202011105020.7 (CN), filed on Oct. 15, 2020.
Prior Publication US 2022/0393957 A1, Dec. 8, 2022
Int. Cl. H04W 4/00 (2018.01); H04L 43/0864 (2022.01)
CPC H04L 43/0864 (2013.01) 15 Claims
OG exemplary drawing
 
1. A timing advance (TA) determining method, comprising:
determining, by a terminal, a common timing parameter and a round-trip delay of a service link; and
obtaining, by the terminal, a TA for signal sending based on the common timing parameter and the round-trip delay of the service link,
wherein the TA is obtained based on the common timing parameter, the round-trip delay of the service link, a numerical drift, and an offset,
wherein the numerical drift is obtained from at least one of a timing advance command (TAC) or a media access control and control element (MAC CE), and
wherein the offset is obtained from at least one of radio resource control message or system information SIB1, or
the offset is a value agreed on by using a protocol.