PCRN session architecture for roaming
View Patent ↗Various exemplary embodiments relate to a method performed by a node for creating a virtual IP-CAN session, the method including: receiving, at the network node, a S9 message; creating a S9 session; creating a virtual IP-CAN session associated with the S9 session; persisting the S9 session; and transmitting an answer S9 message.
1. A method performed by a network node for creating a virtual IP-CAN session, the method comprising:
receiving, at the network node, a S9 message;
creating a S9 session;
creating the virtual IP-CAN session associated with the S9 session;
persisting the S9 session; and
transmitting an answer S9 message.
2. The method of claim 1 , further comprising:
creating a S9 subsession.
3. The method of claim 2 , wherein the S9 subsession is associated with the virtual IP-CAN session.
4. The method of claim 3 , further comprising a plurality of S9 subsessions and a plurality of virtual IP-CAN sessions, wherein each of the plurality of S9 subsessions corresponds to one of the plurality of virtual IP-CAN sessions.
5. The method of claim 1 , wherein the S9 message is a CCR.
6. The method of claim 5 , wherein the answer S9 message is a CCA.
7. The method of claim 1 , wherein the virtual IP-CAN session corresponds to a roaming UE that subscribes to the network node.
8. The method of claim 7 , further comprising:
receiving a request message from an application function to provide application services to the roaming UE; and
associating the request message with the virtual IP-CAN session.
9. The method of claim 8 , further comprising:
generating a Gx RAR;
generating a S9 RAR message; and
transmitting the S9 RAR message.
10. The method of claim 9 , further comprising:
generating a Rx AAA message; and
transmitting the Rx AAA to the application function.
11. A method performed by a node for interacting with a virtual IP-CAN session associated with a roaming user equipment (UE), the method comprising:
receiving a request message from an application function to provide application services to the roaming UE;
finding the virtual IP-CAN session associated with the request;
generating a Gx RAR;
generating a S9 RAR based upon the Gx RAR; and
transmitting the S9 RAR.
12. The method of claim 11 , further comprising:
generating a Rx AAA; and
transmitting the Rx AAA to the application function.
13. A tangible and non-transitory machine-readable storage medium encoded with instructions for execution by a network node for creating a virtual IP-CAN session, the tangible and non-transitory machine-readable storage medium comprising:
instructions for receiving, at the network node, a S9 message;
instructions for creating a S9 session;
instructions for creating the virtual IP-CAN session associated with the S9 session;
instructions for persisting the S9 session; and
instructions for transmitting an answer S9 message.
14. The tangible and non-transitory machine-readable storage medium of claim 13 , further comprising:
instructions for creating a S9 subsession.
15. The tangible and non-transitory machine-readable storage medium of claim 14 , wherein the S9 subsession is associated with the virtual IP-CAN session.
16. The tangible and non-transitory machine-readable storage medium of claim 15 , further comprising a plurality of S9 subsessions and a plurality of virtual IP-CAN sessions, wherein each of the plurality of S9 subsessions corresponds to one of the plurality of virtual IP-CAN sessions.
17. The tangible and non-transitory machine-readable storage medium of claim 13 , wherein the S9 message is a CCR.
18. The tangible and non-transitory machine-readable storage medium of claim 17 , wherein the answer S9 message is a CCA.
19. The tangible and non-transitory machine-readable storage medium of claim 13 , wherein the virtual IP-CAN session corresponds to a roaming UE that subscribes to the network node.
20. The tangible and non-transitory machine-readable storage medium of claim 19 , further comprising:
instructions for receiving a request message from an application function to provide application services to the roaming UE; and
instructions for associating the request message with the virtual IP-CAN session.
21. The tangible and non-transitory machine-readable storage medium of claim 20 , further comprising:
instructions for generating a Gx RAR;
instructions for generating a S9 RAR message; and
instructions for transmitting the S9 RAR message.
22. The tangible and non-transitory machine-readable storage medium of claim 21 , further comprising:
instructions for generating a Rx AAA message; and
instructions for transmitting the Rx AAA to the application function.