Method of Avoiding or Minimizing Cost of Stateful Connections Between Application Servers and S-CSCF Nodes in an IMS Network with Multiple Domains

• US 20110164563A1
• Filed: 01/04/2011
• Published: 07/07/2011
• 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.
• Granted Patent: US 8,483,373 B2
• Time in Patent Office: Days
• US Class Current: 370/328
• CPC Class Codes: H04L 65/1016 IP multimedia subsystem [IMS]
• CPC Class Codes: H04L 65/1104 Session initiation protocol [SIP]
• CPC Class Codes: H04L 67/14 Session management for real-time applications in data packet communications networks H04L65/1066
• CPC Class Codes: H04L 67/142 Managing session states for stateless protocols; Signalling session states; State transitions; Keeping-state mechanisms

Abstract

Methods of avoiding or minimizing cost of stateful connections between application servers (ASs) and S-CSCF nodes in an IMS network with multiple domains. S-CSCF service logic is provided and connected to a co-located AS. The IMS includes a network operator administration domain and an MVNO service domain, and the S-CSCF logic and AS are maintained in the same domain, e.g., the MVNO or network operator domain.

Claims

1. A system for avoiding or minimizing cost of stateful inter-domain connections between application servers (ASs) and serving call state control function (S-CSCF) node in a network with multiple domains, including a network operator administration domain and an mobile virtual network operator (MVNO) service domain, the system comprising:

a user endpoint (UE) comprising UE control logic;

a serving node comprising serving node control logic, wherein the serving node is in communication with the UE;

wherein the AS and the S-CSCF node are co-located in the serving node and are maintained in the same domain, thereby avoiding or minimizing the cost of inter-domain stateful connections between the AS and the S-CSCF node by providing intra-domain connections between the AS and the S-CSCF logic.

2. The system of claim 1 wherein the same domain is the MVNO domain.

3. The system of claim 1, wherein the serving node control logic instantiates call models dynamically, each said call model having filter codes to associate one or more service requests from the UE to an AS.

4. The system of claim 3, wherein the call model is adapted to the dynamic context of the UE.

5. The system of claim 4, wherein the UE control logic senses the dynamic context of the UE and transmits the dynamic context to the serving node.

6. The system of claim 1 comprising a call model database in communication with the serving node.

7. The system of claim 6, wherein the call model database is maintained by a Virtual Service Organization (VSO) or an MVNO.

8. The system of claim 7, wherein at least one AS is maintained in the same MVNO or VSO.