PARENT MOBILE DEVICE, CHILD MOBILE DEVICE, HOME LOCATION REGISTER DEVICE, AND MOBILE SWITCHING CENTER

摘要

When a plurality of child mobile devices present in a mobile body having a parent mobile device move to an adjacent position registration area, it is possible to prevent concentrated use of the radio resources by these position registrations performed all at once by these child mobile devices. For this, a mobile body communication system (1) includes at least notification information transmission means (21) for notifying the respective child mobile devices (3) that they are under control of the parent mobile device (2), linkage maintaining means (31) for maintaining the parent-child relationship, home location register devices (5, 6) having extended areas (52, 62) holding the mobile device linkage information, and mobile device linkage information transfer means (41) for transferring the address information of the parent mobile device (2).