US 12,445,219 B2
Air interface time service method for mobile terminal, mobile terminal and readable storage medium
Chenglong Wang, Shenzhen (CN); Jiangpeng Zhou, Shenzhen (CN); and Fan Bai, Shenzhen (CN)
Assigned to ZTE CORPORATION, Shenzhen (CN)
Appl. No. 18/007,399
Filed by ZTE CORPORATION, Shenzhen (CN)
PCT Filed Nov. 22, 2021, PCT No. PCT/CN2021/132129
§ 371(c)(1), (2) Date Jan. 30, 2023,
PCT Pub. No. WO2022/111418, PCT Pub. Date Jun. 2, 2022.
Claims priority of application No. 202011375248.8 (CN), filed on Nov. 30, 2020.
Prior Publication US 2023/0291488 A1, Sep. 14, 2023
Int. Cl. H04J 3/06 (2006.01); H04W 56/00 (2009.01)
CPC H04J 3/0638 (2013.01) [H04W 56/001 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for selecting synchronization time source over air interface for a mobile terminal device, comprising:
receiving a broadcast message transmitted by a base station among a plurality of base stations, the broadcast message comprising a time synchronization message;
in response to the time synchronization message being a synchronization time source, executing a time synchronization strategy to determine whether time precision of the base station satisfies a preset condition;
in response to the time precision of the base station satisfying the preset condition, continuously using the time synchronization message as the synchronization time source; and
in response to the time precision of the base station not satisfying the preset condition, using locally maintained time information as the synchronization time source.