A method for matching subscriber state information of a public land mobile network and subscriber state information of a wired/wireless private network in a public and private mobile communication system interworked with the public land mobile network including one or more mobile switching centers, a plurality of public-network base station controllers coupled to each mobile switching center, and a plurality of public-network base station transceiver subsystems forming a public cell area and being coupled to each base station controller, the public and private mobile communication system including a public and private communication service apparatus coupled to one of the base station controllers, and one or more private base station transceiver subsystems forming a public and private cell area and being coupled to the public and private communication service apparatus, the method comprising the steps of:
- when state information of a terminal located in the public and private cell area is changed, generating a message including a field in which the changed state information of the terminal is recorded and transmitting the message to the base station controller;
- and
- allowing the base station controller to receive and read the field indicating the state information of the terminal included in the message and update state information of the terminal located in a visitor location register.