WIRELESS COMMUNICATION SYSTEM, AIR INTERFACE SYNCHRONIZING METHOD, BASE STATION AND ITS CONTROLLING APPARATUS

摘要

A wireless communication system, an air interface synchronizing method, a base station and its controlling apparatus are provided. The wireless communication system includes at least two base stations (420, 430) and a base station controlling apparatus (410). The at least two base stations (420, 430) is used to receive a same signal (460) sent by a terminal (440) separately and to record the signal received time (470) when the signal (460) is received separately and to report up to the base station controlling apparatus (410); the base station controlling apparatus (410) is used to obtain the signal received time (470) recorded by the two base stations (420, 430), to obtain the offsets of the air interfaces of the two base stations (420, 430) according to the signal received time (470), and to send the offsets down to the two base stations (420, 430); the two base stations (420, 430) is also used to synchronize the air interfaces of the two base stations (420, 430) according to the offsets.