DEVICE FOR PROVIDING SYNCHRONOUS SIGNAL IN MICRO CELLULAR SYSTEM AND ITS METHOD

摘要

PURPOSE: A device for providing synchronous signal in micro cellular system is provided to tune synchroness efficiently and improve its performance by providing standard frequency and information of visual synchroness from a central base station to a small base station. CONSTITUTION: A synchronous signal-providing unit in micro cellular system comprises the parts of: a reference frequency sender, which a central base station controller(101) has, sends forward control signal, CDMA signal and reference frequency signal, generated by reference frequency tone from GPS(Global Position System) receiver for synchronizing each small base station(102), after synthesizing electricity from them; and a reference frequency receiver which extracts the reference frequency signal by distributing output of the reference frequency sender received via transmission line and supplies the reference frequency signal, extracted above process, after revising its phase.