Terminal device and pcrf

A User Equipment (UE) establishing a Packet Data Network (PDN) connection over a WLAN, the UE comprising:

• LTE interface circuitry configured to:
• transmit a PDN connectivity request message to a Mobility Management Entity (MME), in a case where an Evolved Universal Terrestrial Radio Access Network (E-UTRAN) is added to the PDN connection, and
• receive an Activate default EPS bearer context request message from the MME;
• and
• a controller,
• wherein in a case that a Network-based IP flow mobility (NBIFOM) mode of the PDN connection is a UE-initiated NBIFOM mode, the PDN connectivity request message includes first information indicating a default access selected by the UE,
• the Activate default EPS bearer context request message includes second information indicating a default access determined by a Policy and Charging Rule Function (PCRF), and
• in a case that a routing filter matching with a packet does not exist, the controller is configured to route the packet to the default access indicated by the second information.

A communication method performed by a User Equipment (UE) establishing a Packet Data Network (PDN) connection over a WLAN, the communication method comprising:

• transmitting a PDN connectivity request message to a Mobility Management Entity (MME), in a case where an Evolved Universal Terrestrial Radio Access Network (E-UTRAN) is added to the PDN connection, and
• receiving an Activate default EPS bearer context request message from the MME, wherein
• in a case that a Network-based IP flow mobility (NBIFOM) mode of the PDN connection is a UE-initiated NBIFOM mode, the PDN connectivity request message includes first information indicating a default access selected by the UE,
• the Activate default EPS bearer context request message includes second information indicating a default access determined by a Policy and Charging Rule Function (PCRF), and
• the communication method further comprising, in a case that a routing filter matching with a packet does not exist, routing the packet to the default access indicated by the second information.