Terminal apparatus, control apparatus, gateway, and communication control method

Abstract

To provide a communication control means for establishing a session suitable for a terminal apparatus connecting to multiple access networks of various kinds and a network apparatus, a user data communication control means suitable for a terminal apparatus that has established sessions via multiple access networks and a network apparatus, and the like. This provides a communication control means suitable for a terminal apparatus and a network apparatus that support connection to multiple access networks of various kinds.

1 . A terminal apparatus comprising:
 a transmission and/or reception unit configured to receive a session establishment accept message including at least first identification information, from a core network via a 3GPP access in a first session establishment procedure; and   a controller configured to establish a session supporting Access Traffic Splitting with the core network, based on the first session establishment procedure, wherein   the first identification information is information indicating that the session supporting Access Traffic Splitting is established, and   the session is a session in which communication through a first communication path via the 3GPP access is possible.   
     
     
         2 . The terminal apparatus according to claim I, wherein
 the transmission and/or reception unit receives a session establishment accept message including at least the first identification information, from the core network or an access network via a Non-3GPP access in a second session establishment procedure, and   the controller enables the session in which communication through the first communication path and a second communication path via the Non-3GPP access is possible, based on the second session establishment procedure.   
     
     
         3 . The terminal apparatus according to  claim 2 , wherein
 the transmission and/or reception unit transmits a session establishment request message including at least second identification information, to the core network via the 3GPP access in the first session establishment procedure,   the transmission and/or reception unit transmits a session establishment request message including at least the second identification information, to the core network or the access network via the Non-3GPP access in the second session establishment procedure, and   the second identification information is information indicating that establishment of a session supporting Access Traffic Splitting is requested.   
     
     
         4 . The terminal apparatus according to  claim 1 , wherein
 the transmission and/or reception unit receives an attach accept message including at least third identification information, from the core network via the 3GPP access in an attach procedure, and   the third identification information is capability information of the core network indicating that Access Traffic Splitting is supported.   
     
     
         5 . The terminal apparatus according to  claim 4 , wherein
 the transmission and/or reception unit transmits an attach request message including at least fourth identification information, to the core network via the 3GPP access in the attach procedure, and   the fourth identification information is capability information of the terminal apparatus indicating that Access Traffic Splitting is supported.   
     
     
         6 . The terminal apparatus according to  claim 2 , wherein
 the transmission and/or reception unit transmits a routing update request message including at least fifth identification information, to the core network via the 3GPP access in a state where the second session establishment procedure is completed, and   the fifth identification information is information for requesting to stop Access Traffic Splitting capability.   
     
     
         7 . A control apparatus to be included in a core network, the control apparatus comprising
 a transmission and/or reception unit configured to transmit a session establishment accept message including at least first identification information, to a terminal apparatus via a 3GPP access in a session establishment procedure, wherein   the first identification information is information indicating that a session supporting Access Traffic Splitting is established.   
     
     
         8 . The control apparatus according to  claim 7 , wherein
 the transmission and/or reception unit transmits an attach accept message including at least second identification information, to the terminal apparatus via the 3GPP access in an attach procedure, and   the second identification information is capability information of the core network indicating that Access Traffic Splitting is supported.   
     
     
         9 . The control apparatus according to  claim 8 , wherein
 the transmission and/or reception unit receives an attach request message including at least third identification information, from the terminal apparatus via the 3GPP access in the attach procedure, and   the third identification information is capability information of the terminal apparatus indicating that Access Traffic Splitting is supported.   
     
     
         10 . A gateway for connecting an access network and a core network, the gateway comprising
 a transmission and/or reception unit configured to receive a session establishment request message including at least first identification information, from the terminal apparatus via the Non-3GPP access in a session establishment procedure, wherein   the transmission and/or reception unit transmits a session establishment accept message including at least second identification information, to the terminal apparatus via the Non-3GPP access in the session establishment procedure,   the first identification information is information indicating that establishment of a session supporting Access Traffic Splitting is requested, and   the second identification information is information indicating that establishment of a session supporting Access Traffic Splitting is established.   
     
     
         11 - 20 . (canceled)