Terminal device, PGW, and TWAG
摘要
說明書
In light of the foregoing, an object of the present invention is to provide a suitable way of implementing a communication control procedure in response to a PDN connectivity establishment request from a terminal device.
To address the above issues, a terminal device of the present invention includes a WLAN interface unit configured to, for establishment of a Packet Data Network (PDN) connection, transmit a PDN connectivity request message to a Trusted WLAN Access Gateway (TWAG) and receive a PDN connectivity reject message from the TWAG. The PDN connectivity request message includes a Protocol Configuration Option (PCO).
The PCO includes information indicating a request of Network-based IP Flow Mobility (NBIFOM) usage. The PDN connectivity reject message is a response message to the PDN connectivity request message. The PDN connectivity reject message includes a Cause. The Cause includes information indicating that multi-access to the PDN connection is not allowed.
A PDN Gateway (PGW) of the present invention is a PGW capable of establishing a PDN connection with a terminal device and includes an IP mobile communication network interface unit configured to receive a Create Session Request message from a Trusted WLAN Access Gateway (TWAG) and transmit a Create Session Response message to the TWAG. The Create Session Request message includes information indicating a request of Network-based IP Flow Mobility (NBIFOM) usage. The Create Session Response message is a response message to the Create Session Request message. The Create Session Response message includes a Cause. The Cause is information indicating that multi-access to the PDN connection is not allowed.
