公开(公告)号：US20190141649A1

公开(公告)日：2019-05-09

申请号：US16220563

申请日：2018-12-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jun HU ,  Haibing CAO ,  Yajun LUO

IPC: H04W56/00 ,  H04W84/10 ,  H04W72/04

Abstract: Embodiments of the present disclosure relate to the communications field, and in particular, to frequency synchronization of base stations. In an example frequency synchronization method, a first base station obtains a second frequency offset of a second base station. The first base station then determines a frequency difference between the first base station and the second base station and a first frequency offset of the first base station based on the second frequency offset and the frequency difference. The first base station then performs frequency synchronization based on the first frequency offset. In some instances, the first base station can determine, through interaction between the first base station and the second base station, the first frequency offset of the first base station without depending on a synchronous Ethernet to perform frequency synchronization.