MOBILE STATION AND COMMUNICATION METHOD

摘要

A mobile station and a communication method are provided, which are capable of preventing a state where no incoming calls can be received from continuing for a long time even if an IP-CAN Bearer, which is a logical communication path used for SIP and audio media, is removed for some reason. UE 100 is connectable to an access network complying with the Internet protocol and executes registration with an IP multimedia subsystem complying with the Internet protocol. The UE 100 includes: a bearer establishment unit 110 configured to establish an IP-CAN Bearer that is a logical communication path between the UE 100 and a PGW constituting the access network; and a registration processing unit 120 configured to execute registration of the mobile station with the IP multimedia subsystem when the bearer establishment unit 110 establishes the IP-CAN Bearer.