MOBILE COMMUNICATION SYSTEM, MOBILE STATION, SWITCHING CENTER, AND METHOD FOR POSITION REGISTRATION FOR MOBILE STATION

摘要

The present invention abates network loads caused by changes in selection of position registration devices on the circuit-switching network side, fluctuation in number of installations, and the like. A mobile communication system includes a mobile station, a packet-switching station, and a plurality of position registration devices for managing the position of the mobile station. After one position registration device has been selected from among the plurality of position registration devices for the mobile station, the mobile station transmits a Network Resource Identifier (NRI) included within a Temporary Mobile Station Identifier (TMSI) to the packet switching station at the time of position registration. The packet switching station requests a position registration from the position registration device on the basis of the NRI.