Mobile communication system which prohibits service to a mobile station having an ID number upon receiving a non-coincidence notice from the mobile station

Claim 1

A mobile communication system comprising: a mobile communication network comprising a mobile service switching center, a plurality of base control stations, each connected to the mobile service switching center, and a plurality of base stations controlled by the base control station; and a mobile station located in a cell of a base station, for communicating control data for placing a call via a control channel and a talk signal via a talk channel to the mobile station's own base station, wherein the mobile communication network comprises: a user information storing means for storing user information corresponding to an ID number of the mobile station, said user information changing each time a particular service to the mobile station being provided; and a user information notifying means for notifying information including said user information to the mobile station each predetermined time; and a service prohibiting means for prohibiting said service to the mobile station having said ID number upon receiving a non-coincidence notice from the mobile station, and the mobile station comprises: a mobile station user information storing means for renewing and storing said user information, said user information changing each time said particular service being requested; and a non-coincidence notifying means for comparing said user information notified at said predetermined time to the mobile station's own base station from the mobile communication network with said independently stored user information so as to notify the mobile communication network of a non-coincidence when the comparison result is not coincident.