Patent ID: 6571108
Filing Date: 2003-05-27
Classification: H04M,H04W

Abstract:
A private branch mobile communication system, comprising:a distributed node switched network including a plurality of private branch exchanges each of which accommodates one or more radio base stations and has an identifiable node number provided thereto, and one or more radio terminals; a common system ID which defines a range of use over said distributed node switched network being allocated to said radio terminals, private branch exchanges and radio base stations; a network common database provided in each of said private branch exchanges and common for said radio terminals which have the system ID and the radio base stations, and a local database provided in each of said private branch exchanges for recording basic data of any of said radio terminals and said radio base stations into the private branch exchange so that the private branch exchange may serve as a home node to the radio terminal; and means provided in each of said private branch exchanges for referring to said network common database to convert an ID from a radio terminal into a node number and a physical accommodation position provided by the private branch exchange of the home node to the radio terminal.