Terminal device, PGW, and TWAG
摘要
說明書
The user plane connection ID is information for identifying a user plane. The user plane is a transfer path used for transferring user data in the PDN connection. The TWAG 74 may assign the user plane connection ID.
The PDN connection attribute information may be information indicating that the PDN connection established in the present PDN connectivity procedure is not a multi-access PDN connection. Alternatively, the PDN connection attribute information may be information indicating that the PDN connection is not a special PDN connection type. Alternatively, the PDN connection attribute information may be information indicating that the user data transmitted/received through the PDN connection established in the present PDN connectivity procedure is not allowed to be transmitted/received through the access network A and the access network B. Alternatively, when the establishment of the PDN connection for the LIPA is allowed, the PDN connection attribute information may include information indicating that the PDN connection established in the present PDN connectivity procedure is the PDN connection for the LIPA. Note that the UE 10 may transmit the PDN Connectivity Accept message that further includes the connectivity type indicating the type of the PDN connection and/or the WLAN offload permission information (WLAN offload acceptability) indicating whether or not the WLAN offload can be performed. Furthermore, the TWAG 74 may transmit the connectivity type or the WLAN offload permission information including the PDN connection attribute information.
