Terminal apparatus, control apparatus, gateway, and communication control method
View Patent ↗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 User Equipment (UE) comprising:
transmission and reception circuitry; and
a controller,
wherein:
the transmission and reception circuitry is configured to:
transmit, to a core network, over 3GPP access, a Protocol Data Unit (PDU) Session Establishment Request message; and
receive, from the core network, over the 3GPP access, a PDU Session Establishment Accept message, as a response to the PDU Session Establishment Request message, the PDU Session Establishment Accept message including routing rules for a Multi-Access PDU Session and identification information for establishing the Multi-Access PDU Session;
the controller is configured to recognize that the Multi-Access PDU Session is established, based on receiving the PDU Session Establishment Accept message;
a first communication path over the 3GPP access is established;
the transmission and reception circuitry is further configured to receive, over non-3GPP access, a control message including the identification information; and
a second communication path over the non-3GPP access is established.
2. The UE according to claim 1 , wherein the PDU Session Establishment Request message further includes information indicating that the UE supports Access Traffic Switching and Access Traffic Splitting.
3. The UE according to claim 1 , wherein the PDU Session Establishment Request message further includes information indicating that the UE supports Access Traffic Splitting.
4. The UE according to claim 1 , wherein the PDU Session Establishment Request message further includes information indicating that the UE supports Access Traffic Switching.
5. A communication method performed by a User Equipment (UE), the communication method comprising:
transmitting, a to a core network, over 3GPP access, a Protocol Data Unit (PDU) Session Establishment Request message;
receiving, from the core network, over the 3GPP access, a PDU Session Establishment Accept message, as a response to the PDU Session Establishment Request message, the PDU Session Establishment Accept message including routing rules for a Multi-Access PDU Session and identification information for establishing the Multi-Access PDU Session; and
recognizing that the Multi-Access PDU Session is established, based on receiving the PDU Session Establishment Accept message;
establishing a first communication path over the 3GPP access;
receiving, over non-3GPP access, a control message including the identification information; and
establishing a second communication path over the non-3GPP access.
6. The communication method according to claim 5 , wherein the PDU Session Establishment Request message further includes information indicating that the UE supports Access Traffic Switching and Access Traffic Splitting.
7. The communication method according to claim 5 , wherein the PDU Session Establishment Request message further includes information indicating that the UE supports Access Traffic Splitting.
8. The communication method according to claim 5 , wherein the PDU Session Establishment Request message further includes information indicating that the UE supports Access Traffic Switching.