Mediation system and method for hybrid network including an IMS network

• US 7,672,297 B2
• Filed: 06/24/2005
• Issued: 03/02/2010
• Est. Priority Date: 06/24/2005
• Status: Active Grant

• Current Assignee: Aylus Networks Incorporated
• Original Assignee: Aylus Networks Incorporated
• Inventors: Dorbala, Prasad S., Naqvi, Shamim A., Ganmukhi, Mahesh N., Wong, Ellis L.
• Primary Examiner(s): Matar; Ahmad F.
• Assistant Examiner(s): GAY, SONIA L
• Application Number:
  US11/166,406
• Publication Number:
  US 20070008951A1
• Time in Patent Office: 1,712 Days
• Field of Search: 370259-271, 370351-356, 370/401, 455/414.1, 455/414.2, 455/414.3, 455/414.4, 379/201.01, 379/201.02, 379/201.03, 379/201.05, 379/207.02, 379/207.11, 379/221.15
• US Class Current: 370/352
• CPC Class Codes: H04L 12/2801 Broadband local area networks
• CPC Class Codes: H04L 65/1016 IP multimedia subsystem [IMS]
• CPC Class Codes: H04L 67/51 Discovery or management thereof, e.g. service location protocol [SLP] or web services

Abstract

Mediation systems and methods for hybrid networks including an IMS network. A system and method mediates an IMS network having a serving call state control function (S-CSCF) for providing session control for user endpoint (UE) devices with an alternative network to create a hybrid network. A service and corresponding service request code are defined to utilize at least a subset of capabilities provided by said alternative network. The S-CSCF is provisioned to identify and receive an alternative network service request message from a UE, including providing a call model having at least one filter code to associate said alternative network service code with at least one application server (AS) dedicated to serving alternative network service requests, said AS being responsive to service point triggers (SPTs). The AS is in communication with and capable of controlling delivery of at least a subset of services provided by said alternative network. The alternative network is a wireless broadcast network, such as a DVB-H network or a forward link only (FLO) network. The IMS network and S-CSCF and ASs are provisioned to provide two-way transport for interactive services for said hybrid network. The call model for alternative network services is constructed as a dynamic call model.

Claims

1. A system for mediating a first network having a serving call state control function (S-CSCF) for providing session control for user endpoint (UE) devices with an alternative network to create a hybrid network, said system comprising:

a first network;

an alternative network;

a plurality of application servers (ASs) located in both the first network and the alternative network;

logic located in the AS to define a service and corresponding service request code to utilize at least a subset of capabilities provided by said alternative network;

logic located in the AS to provision the S-CSCF to identify and receive an alternative network service request message from a UE, said logic including logic to provide a call model based on a cost function, wherein the call model having at least one filter code to associate said alternative network service code with at least one application server (AS) dedicated to serving alternative network service requests, said AS being responsive to service point triggers (SPTs);

wherein said AS having logic to determine whether to use said alternative network or said first network based on a cost function, being in communication with and capable of controlling delivery of at least a subset of services provided by said alternative network and creating a hybrid network of said first network and said alternative network.

2. The system of claim 1 wherein said alternative network is a wireless broadcast network.

3. The system of claim 2 wherein said wireless broadcast network is a Digital Video Broadcast—

Handheld (DVB-H) network.

4. The system of claim 2 wherein said wireless broadcast network is a forward link only (FLO) network.

5. The system of claim 1 wherein the first network and S-CSCF and ASs are provisioned to provide two-way transport for interactive services for said hybrid network.

6. The system of claim 1 wherein the call model for alternative network services is constructed as a dynamic call model.

7. The system of claim 1 wherein said AS utilizes proxy logic to communicate with the alternative network.

8. The system of claim 1 wherein said AS is located within said alternative network.

9. A method of mediating a first network having a service call state control function (S-CSCF) for providing session control for user endpoint (UE) devices with an alternative network to create a hybrid network, said method comprising:

defining a service and corresponding service request code to utilize at least a subset of capabilities provided by said alternative network;

provisioning the S-CSCF to identify and receive an alternative network service request message from a UE, including providing a call model having at least one filter code to associate said alternative network service request code with at least one application server (AS) dedicated to serving alternative network service requests, said AS being responsive to service point triggers (SPTs);

creating a hybrid network of said first network and said alternative network; and

said AS determining whether to use said alternative network or said first network based on a cost function, wherein said AS is in communication with and capable of controlling delivery of at least a subset provided by said alternative network.

10. The method of claim 9 wherein said alternative network is a wireless broadcast network.

11. The method of claim 10 wherein said wireless broadcast network is a Digital Video Broadcast—

Handheld (DVB-H) network.

12. The method of claim 10 wherein said wireless broadcast network is a forward link only (FLO) network.

13. The method of claim 9 wherein the first network and S-CSCF and ASs are provisioned to provide two-way transport for interactive services for said hybrid network.

14. The method of claim 9 wherein the call model for alternative network services is constructed as a dynamic call model.

15. A method of mediating an IMS network having a serving call state control function (S-CSCF) for providing session control for user endpoint (UE) devices with an alternative network to create a hybrid network, said method comprising:

receiving a service request from the UE;

transferring the service request to the S-CSCF;

executing a filter code stack in the S-CSCF;

transferring control to a first application server (AS) based on the service request;

executing a cost function by the first AS;

creating a hybrid network of said first network and said alternative network; and

determining by the first AS whether to use said alternative network or said first network to deliver the service based on the cost function.

16. The method of claim 15 comprising:

transferring control to a second AS for execution of second AS service logic and delivery of the service requested to the UE.

17. The method of claim 15 comprising constructing a new set of filter codes (NFC) based on the cost function.

18. The method of claim 17 comprising loading the NFC into the S-CSCF for execution.

19. The method of claim 16 wherein the second application server acts as a control element for a selected network, wherein the selected network was determined based on the cost function