Apparatus, method and system for matching subscriber states in network in which public land mobile network and wired/wireless private network are interworked

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 at least one mobile switching center, 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 at least one private base station transceiver subsystem forming a public and private cell area and being coupled to the public and private communication service apparatus, the method comprising the steps of:

• receiving an incoming call message directed to a mobile station located within the public and private cell area from the public-network base station controller;
• determining whether the mobile station is currently coupled to a call associated with the private network;
• and
• coupling the mobile station to an incoming call from the public network when the mobile station is in an idle state and generating a paging response message to transmitting it to the public-network base station transceiver subsystem when the mobile station is currently coupled to a call associated with the private network.

A public and private communication service apparatus interworked with the public land mobile network including a plurality of mobile stations, at least one mobile switching center, 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 communication service apparatus being coupled to at least one private base station transceiver subsystems forming a public and private cell area, comprising:

• a network connection controller for providing a network connection for private switching services when a message for an incoming signal reception request directed to a terminal located within the public and private cell area is a private mobile communication service message, determining whether the terminal is in an idle state or a private call connection state when the message for the incoming signal reception request directed to the terminal is a public mobile communication service message, providing a network connection if the terminal is in the idle state, and generating a paging response message to transmit it to the public-network base station controller when the terminal is in the private call connection state;
• and
• a communication path former for forming a communication path corresponding to services requested in a received service request message in response to a control of the network connection controller.