Patent ID: 7433686

Claim:
A mobile communication system including a plurality of mobile stations (MSs), at least one mobile switching center (MSC), a plurality of public mobile communication network's base station controllers (BSCs) each connected to the MSC, and a plurality of public mobile communication network's base station transceiver subsystems (BTSs) connected to each of the base station controllers (BSCs), for forming a public-only cell area, the system comprising: a public/private communication service unit, providing a call or data service, connected to a particular one of the plurality of public mobile communication network's base station controllers (BSCs); and at least one private base station transceiver (pBTS) connected to the public/private communication service unit, for forming a public/private common cell area; wherein if a message received for a service requested by a particular one of the mobile stations (MSs) is a public mobile communication service message, the public/private communication service unit transparently transmits the received message, and if the received message is a private mobile communication service message, the public/private communication service unit provides network access for a corresponding private mobile communication service; and wherein said public/private communication service unit is directly connected between said particular one of the plurality of public mobile communication network's base station controllers (BSCs) and said at least one private base station transceiver (pBTS).