Terminal device, PGW, and TWAG
摘要
說明書
Moreover, the PGW 30 may transmit, to the PCRF 60, a control message in the IP-CAN session procedure, including information indicating whether the PDN connection to be established is the multi-access PDN connection or the single-access PDN connection based on the above determination.
More specifically, when the multi-access PDN connection is to be established, the PGW 30 transmits, to the PCRF 60, the information indicating the access network B, the PDN connection ID, and the information indicating that the PDN connection is the multi-access PDN connection. Alternatively, when the single-access PDN connection is to be established, the PGW 30 transmits, to the PCRF 60, the information indicating the access network B, the PDN connection ID, and the information indicating that the PDN connection is the single-access PDN connection.
Note that the PDN connection ID may be an ID assigned when the PGW 30 establishes the PDN connection in the PDN connectivity procedure, or may be information for uniquely identifying the PDN connection that the UE 10 establishes with the PGW 30.
Based on the reception of the Create Session Request or the completion of the IP-CAN Session Update procedure, based on the Create Session Request, the PGW 30 transmits a Create Session Response to the TWAG 74 (S1806).
