SEMIAUTONOMOUS SYNCHRONIZATION AMONG BASE STATIONS FOR TDMA-TDD COMMUNICATION-SYSTEMS

This paper proposes a semi-autonomous frame synchronization scheme for a TDMA (Time Division Multiple Access)-TDD (Time Division Duplexing) personal communication system to realize accurate frame synchronizatio n in a simple manner. The proposed scheme selects specific adjacent ba se stations by the station indicator (SID), carries out high resolutio n frame timing control, and compensates the propagation delay between base stations by using geographical data. This autonomously synchroniz es all base stations to each other. Computer simulation and analysis r esults confirm the accurate and stable TDMA frame synchronization of a ll base stations even in fading environments.