Patent ID: 10638438

Abstract:
A synchronization information sending method, a synchronization information receiving method, a base station, and a communications node are provided. The sending method includes: obtaining, by a communications node, a pulse per second PPS; obtaining, by the communications node, a first time T1 based on the PPS; obtaining, by the communications node, a second time T2 based on the subframe; determining, by the communications node, a first time difference TD 1 based on the first time T1 and the second time T2; obtaining, by the communications node, a second time difference TD 2 based on the first time difference TD 1 and the TA. Different base stations use a same pulse per second PPS as a reference to adjust a sending time, a radio frame number, and a subframe number of a subframe, so that the different base stations are synchronized with each other.