MOBILE STATION, METHOD FOR CONTROLLING MOBILE STATION, MOBILE COMMUNICATION SYSTEM, MOBILITY MANAGEMENT APPARATUS, AND COMPUTER-READABLE MEDIUM

摘要

In one embodiment, a mobile station (1) is capable of performing location registration procedures with first and second mobile management units (31 and 32) that respectively correspond to first and second RANs (Radio Access Networks). Further, the mobile station (1) supports ISR (Idle mode Signalling reduction) for reducing location registration procedures caused by reselection between the first RAN (21) and the second RAN (22). Furthermore, the mobile station (1) is configured to deactivate ISR in the mobile station (1) when voice service configuration information stored in the mobile station (1) is updated when the ISR is activated.

主权项

1. A mobile station comprising:
a communication control unit that is capable of performing location registration procedures with first and second mobility management units respectively corresponding to first and second RANs (Radio Access Networks) and supports ISR (Idle mode Signalling Reduction) between the first and second RANs by the mobile station, wherein when voice service configuration information is changed when the ISR is activated, the communication control unit deactivates the ISR in the mobile station.