FRAME SYNCHRONIZATION SYSTEM BETWEEN BASE STATIONS OF MOBILE RADIO COMMUNICATION SYSTEM AND BASE STATION DEVICE EMPLOYING THIS SYSTEM

摘要

A frame synchronization system between base stations of a mobile radio communication system comprising at least one main base station and a plurality of subsidiary base stations, wherein the main base station has a time information receiving means for receiving time information of high precision supplied from outside, a reference frame timing generating means for generating a reference frame timing on the basis of the time information, and a first control channel signal transmitting means for transmitting a control channel signal to the plurality of subsidiary base stations located synchronously with the reference frame timing, and the subsidiary base station has a local frame timing generating means for generating a local frame timing based on the receiving timing of a control channel signal transmitted from the main base station or other subsidiary base stations, and a second control channel signal transmitting means for transmitting a control channel signal synchronously with the local frame timing.