SYSTEMS AND METHODS FOR IMS USER SESSIONS WITH DYNAMIC SERVICE SELECTION

• US 20110092206A1
• Filed: 12/21/2010
• Published: 04/21/2011
• Est. Priority Date: 04/17/2007
• Status: Active Grant

• Current Assignee: Aylus Networks Incorporated
• Original Assignee: Aylus Networks Incorporated
• Inventors: Day, Anju, Naqvi, Shamim A., Wong, Ellis L.
• Granted Patent: US 8,170,534 B2
• Time in Patent Office: Days
• US Class Current: 455/435.1
• CPC Class Codes: H04L 65/1016 IP multimedia subsystem [IMS]
• CPC Class Codes: H04W 72/51 based on terminal or device properties

Abstract

Under one aspect, a system generates dynamic call models within an IMS network, allowing different user entities (UEs) to have different service experiences. The IMS network includes application servers (ASs) and a serving call state control function (S-CSCF) that receives and then forwards UE service requests. The system includes storage media storing a service tree, which defines potential call models that map potential UE service requests onto ASs. At least two potential call models map a specified potential UE service request onto different ASs that can provide different service experiences. The system includes control logic for providing session control, which receives UE service requests from the S-CSCF, receives the service tree from the storage media, generates a call model for each UE based on potential call models defined by the service tree and on the requested service, and invokes a specified AS based on the generated call model.

Claims

1. A user endpoint (UE) for switching dynamically between call models within a network, the network including application servers (ASs) for providing services to the UE based on service requests by the UE, the network further including Serving Node (SN) for receiving service requests by the UE, the UE comprising:

agent logic for

expressing a dynamic context of the UE in a dynamic context message;

transmitting the dynamic context message to the SN; and

utilizing a new call model based on the dynamic context message, wherein the new call model maps a service request to a plurality of Application Servers (ASs)

2. The user endpoint of claim 1, wherein the mapping of a service request in the new call model to the ASs is based on one of a hierarchical service tree, a trie data structure or a multi-dimensional matrix, wherein each provides a variety of service options based on a variety of parameters

3. The user endpoint of claim 1, wherein the dynamic context of the UE comprises an access network that becomes newly available to the UE.

4. The user endpoint of claim 1, wherein the new call model identifies a new access network to be utilized by the ASs to provide the requested service.

5. The user endpoint of claim 1, wherein the new call model identifies a new UE to be utilized by the ASs to provide the requested service.

6. The user endpoint of claim 1, wherein the new call model identifies the original and a new UE and the original and a new access network, to the ASs to provide the requested service.

7. The user endpoint of claim 1, wherein in response to a change in the context of the UE, the agent logic is further utilized for

detecting a change in the dynamic context of the UE;

expressing the change in the dynamic context as a second dynamic context of the UE in a dynamic context message;

transmitting the second dynamic context message to the SN; and

utilizing a second new call model based on the second dynamic context message, wherein the second call model maps a service request to a plurality of ASs.

8. The user endpoint of claim 7, wherein the detecting occurs while the UE is participating in a network service.

9. A method of operating a user endpoint (UE) to switching dynamically between call models within a network, the network including Application Servers (ASs) for providing services to the UE based on service requests by the UE, the network further including a Serving Node (SN) for receiving service requests by the UE, the UE comprising:

expressing a dynamic context of the UE in a dynamic context message;

transmitting the dynamic context message to the SN; and

utilizing a new call model based on the dynamic context message, wherein the new call model maps a service request to a plurality of Application Servers (ASs).

10. The method of claim 9, wherein the mapping of a service request in the new call model to the ASs is based on one of a hierarchical service tree, a trie data structure or a multi-dimensional matrix, wherein each provides a variety of service options based on a variety of parameters.

11. The method of claim 9, wherein the dynamic context of the UE comprises an access network that becomes newly available to the UE.

12. The method of claim 9, wherein the new call model identifies a new access network to be utilized by the ASs to provide the requested service.

13. The method of claim 9, wherein the new call model identifies a new UE to be utilized by the ASs to provide the requested service.

14. The method of claim 9, wherein the new call model identifies the original and a new UE and the original and a new access network to the ASs to provide the requested service.

15. The method of claim 9, wherein in response to a change in the context of the UE, the method further comprises:

detecting a change in the dynamic context of the UE;

expressing the change in the dynamic context as a second dynamic context of the UE in a dynamic context message;

transmitting the second dynamic context message to the SN; and

utilizing a second new call model based on the second dynamic context message, wherein the second call model maps a service request to a plurality of ASs.

16. The method of claim 15, wherein the detecting occurs while the UE is participating in a network service.

17. A system for switching dynamically between call models within a network, the network including application servers (ASs) for providing services to a user endpoint (UE) based on service requests by the UE, the network further including a Serving Node (SN) for receiving service requests by the UE, the system comprising:

a UE comprising agent logic for

expressing a dynamic context of the UE in a dynamic context message;

transmitting the dynamic context message to the SN; and

utilizing a new call model based on the dynamic context message, wherein the new call model maps a service request to a plurality of Application Servers (ASs); and

a SN comprising control logic, wherein the SN is in wireless communication with the UE and the control logic of the SN works in conjunction with the agent logic of the UE.

18. The system of claim 17, wherein the mapping of a service request in the new call model to ASs is based on one of a hierarchical service tree, a trie data structure or a multi-dimensional matrix, wherein each provides a variety of service options based on a variety of parameters

19. The system of claim 17, wherein the dynamic context of the UE comprises an access network that becomes newly available to the UE.

20. The system of claim 17, wherein the new call model identifies a new access network to be utilized by the ASs to provide the requested service.

21. The system of claim 17, wherein the new call model identifies a new UE to be utilized by the ASs to provide the requested service.

22. The system of claim 17, wherein the new call model identifies the original and a new UE and the original and a new access network, to the ASs to provide the requested service.

23. The system of claim 17, wherein in response to a change in the context of the UE, the agent logic is further utilized for

detecting a change in the dynamic context of the UE;

expressing the change in the dynamic context as a second dynamic context of the UE in a dynamic context message;

transmitting the second dynamic context message to the SN; and

utilizing a second new call model based on the second dynamic context message, wherein the second call model maps a service request to a plurality of ASs.

24. The user endpoint of claim 23, wherein the detecting occurs while the UE is participating in a network service.