ROAMING DEVICE BETWEEN ASYNCHRONOUS NETWORK AND SYNCHRONOUS NETWORK AND METHOD THEREOF - THE DEVICE IS COMPRISED OF A SYNCHRONOUS NETWORK INTERFACE, AN ASYNCHRONOUS NETWORK INTERFACE, A MOBILE APPLICATION PORTION FOR INTEGRATIVELY MANAGING SUBSCRIBERS OF SYNCHRONOUS AND ASYNCHRONOUS NETWORKS, AND AN INTERWORKING UNIT HAVING A PROTOCOL CONVERSION FUNCTION

摘要

PURPOSE: A roaming device between an asynchronous network and a synchronous network is provided to use a multi-band/mode terminal without the necessity for mounting an SIM(Subscriber Identity Module) card on a CDMA(Code Division Multiplex Access) terminal which supports an SIM card function, thereby making the commercialization of UMTS(Universal Mobile Telecommunication System) earlier. CONSTITUTION: A dual stack HLR(Home Location Register)(400) comprises as follows. A synchronous network interface(410a) is used for interfacing with a CDMA network(210). An asynchronous network interface(410b) is used for interfacing with an asynchronous network(700) such as a GSM(Global System for Mobile communication) /UMTS network. A mobile application portion(420) has both the function of the ANSI-41 that is a synchronous standard HLR and the function of the MAP that is an asynchronous standard HLR. An interworking unit(430) has a protocol conversion function for simultaneously processing subscriber service/position information managements of a 2G CDMA network and a 3G GSM/UMTS network.