CPC H04W 48/18 (2013.01) [H04W 4/02 (2013.01); H04W 8/02 (2013.01); H04W 8/04 (2013.01); H04W 8/20 (2013.01); H04W 8/24 (2013.01); H04W 60/04 (2013.01); H04W 64/003 (2013.01); H04W 4/70 (2018.02); H04W 84/042 (2013.01); H04W 92/045 (2013.01)] | 5 Claims |
1. A terminal device for selecting a core network in a mobile communication system, the terminal device comprising:
a service information acquisition unit configured to acquire, when a location registration of the terminal device is successful, a service information of a service to which a user subscribed for a specific type of service from a node of a dedicated core network dedicated to a specific service, and to store the service information;
a service information determining unit configured to determine whether the stored service information is valid; and
a service information transmission unit configured to transmit, when the stored service information is determined to be valid, the stored service information to a base station apparatus,
wherein the dedicated core network sends a request message to a home subscriber server when the dedicated core network receives the service information from the base station apparatus, and
wherein the dedicated core network receives an answer message including the service information which the user subscribed from the home subscriber server when the home subscriber server receives the request message from the dedicated core network.
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