TERMINATION DATA ROAMING SERVICE SYSTEM FROM CDMA2000 NETWORK TO WCDMA NETWORK USING TCS AND METHOD THEREFOR

摘要

PURPOSE: A termination data roaming service system from a CDMA2000(Code Division Multiple Access 2000) network to a WCDMA(Wideband CDMA) network using a TCS(Termination Control System) and a method therefor are provided to roam termination data from the synchronous CDMA2000 network to the asynchronous WCDMA network. CONSTITUTION: A DHLR(Dual Home Location Register)(240) manages respective subscriber information of a CDMA2000 network(100) and a WCDMA network(200). A TCS(270) processes calls terminated to a mobile terminal which roams from the CDMA2000 network(100) to the WCDMA network(200), and manages termination information. An SIP(Session Initiation Protocol) server(250) receives a termination message from the TCS(270) which can be applied to both synchronous and asynchronous networks, and provides the received termination message to the mobile terminal. The first database manages a mapping table as to subscriber information of the synchronous network, The second database manages a mapping table as to subscriber information of the asynchronous network, and the third database manages user IDs of subscribers.