Patent ID: 7313396

Claim:
A method comprising: providing a private mobile communication system cooperating with a public land mobile network (PLMN); the private mobile communication system including a private Home Location Register (pHLR) and a private Base Station Controller (pBSC); registering a mobile station (MS) by the pBSC, the pHLR being arranged in the private mobile communication system and storing MS registration information of the MS to communicate with the private mobile communication system, the pBSC enabling the private mobile communication system to cooperate with the PLMN, the registering of the MS including: receiving an Origination Message (ORM) transmitted from the MS through a private Base Transceiver Station (pBTS) in the private mobile network; extracting a function code, a mobile directory number (MDN), and MS information from the received ORM; examining MS registration information stored in the pHLR using the extracted MDN upon the function code being a registration function code; and updating and registering the MS registration information using the extracted MS information upon the examined MS registration information being in a registration initialization pattern.