Location registration with a Packet-Switched or Circuit-Switched domain access restriction

摘要

A mobile device and location registration method in a combined update situation, wherein the mobile device updates its location and routing area periodically, that, even when packet communications with the PS domain (i.e. barred) are being restricted and the location cannot be registered, the location can be registered rapidly when the access restriction is released (i.e. when access to the PS domain is possible again). The mobile device comprises a packet timing unit that times a predetermined time; a location registration unit that registers the location to the control server for packet communications; a timing control unit that, if control server for packet communications is under access restriction, controls the timing operations to be temporarily stopped; and a location registration control unit that controls the location registration unit to register the location to the control server for packet communications, and also controls the location registration unit to register the location to the control server for packet communications if the control server for packet communications has released the access restriction and if the timing control unit has stopped the timing operations of the packet timing unit. Periodic update timer. Combined update. Periodic routing/location area update.