IP Library Granted Patent US 8,522,017
Granted Patent B2
US 8,522,017 · App. 11/590,775 · Granted Aug 27, 2013

Systems and methods for signal reduction in wireless communication

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Quick Facts
Patent No.
US 8,522,017
App. No.
11/590,775
Granted
Aug 27, 2013
Kind
B2
Abstract

Embodiments of the present invention provide systems and methods for managing wireless communication sessions with reduced signaling. A system of the present invention includes an Access Gateway (AGW) system configured to interface with at least one radio access network and at least one packet data network, wherein the AGW system has a policy enforcement component. The system further includes a session control component configured to receive one or more communication session control requests, obtain session information and policy decisions corresponding to the one or more communication session control requests, and directly reconfigure the policy enforcement component to enforce the obtained session information and policy decisions.

Claims (49)

1. A system comprising:

an Access Gateway (AGW) system configured to interface with at least one radio access network and at least one packet data network, the AGW system including

a policy enforcement component, and

a session control component configured to

receive one or more communication session control requests,

obtain session information and policy decisions from a policy decision component corresponding to the one or more communication session control requests, and

directly reconfigure the policy enforcement component to enforce the obtained session information and policy decisions,

wherein the AGW system comprises a Packet Data Service Node (PDSN),

wherein the session control component is integrated with a Home Agent (HA) and the PDSN to form a single device,

wherein the policy enforcement component and the session control component are integrated into a single device, the single device in communication with the radio access network and the packet data network, and

wherein reconfiguration of the policy enforcement component is achieved internally within the AGW without Mobile Internet Protocol (MIP) messages being exchanged, thereby reducing the signaling associated with at least one of the setup, update and teardown of a communication session.

2. The system of claim 1 , wherein the session control component comprises a Call Session Control Function (CSCF) component.

3. The system of claim 1 , wherein the AGW system comprises an Access Service Network (ASN) Gateway configured to interface with at least one Worldwide Interoperability for Microwave Access (WiMAX) radio access network and at least one packet data network.

4. The system of claim 1 , wherein the one or more communication session control requests comprise Session Initiation Protocol (SIP) messages.

5. A method comprising:

configuring an Access Gateway (AGW) system to interface with at least one radio access network and at least one packet data network;

receiving at a session control component a communication session control request;

obtaining session information and policy decisions from a policy decision component corresponding to the communication session control request using the session control component;

directly reconfiguring a policy enforcement component of the AGW system with the obtained session information and policy decisions using the session control component; and

enforcing the obtained session information and policy decisions corresponding to the communication session control request at the AGW system using the policy enforcement component,

wherein the session control component comprises a Call Session Control Function (CSCF) component,

wherein the session control component is integrated with a Home Agent (HA) to form a single device,

wherein the AGW system comprises a Packet Data Service Node (PDSN),

wherein the policy enforcement component and the session control component are integrated into a single device,

wherein the single device is in communication with the radio access network and the packet data network, and

wherein reconfiguration of the policy enforcement component is achieved internally within the AGW without Mobile Internet Protocol (MIP) messages being exchanged, thereby reducing the signaling associated with at least one of the setup, update and teardown of a communication session.

6. The method of claim 5 , wherein the communication session control request comprises a Session Initiation Protocol (SIP) message.

7. A system comprising:

an Access Gateway (AGW) system configured to interface with at least one radio access network and at least one packet data network, the AGW system having means for enforcing policy decisions for one or more communication sessions; and

session control means for handling one or more communication session control requests,

wherein the session control means receives the one or more communication session control requests, obtains session information and policy decisions from a policy decision component corresponding to the one or more communication session control requests, and directly reconfigures the enforcing means to enforce the obtained session information and policy decisions,

wherein the session control means is integrated with the GGSN to form a single device,

wherein the AGW system comprises a Gateway General Packet Radio Service (GPRS) Support Node (GGSN),

wherein the AGW, the session control means and the means for enforcing policy decisions are integrated into a single device, and

wherein the single device is in communication with the radio access network and the packet data network.

8. The system of claim 7 , wherein the session control means reconfigures the enforcing means without MIP messages being exchanged.

9. The system of claim 7 , wherein the session control means reconfigures the enforcing means without MIP messages being exchanged.

10. The system of claim 7 , wherein the AGW system comprises an Access Service Network (ASN) Gateway configured to interface with at least one Worldwide Interoperability for Microwave Access (WiMAX) radio access network and at least one packet data network.

11. The system of claim 7 , wherein the one or more communication session control requests comprise a Session Initiation Protocol (SIP) message.

12. A method comprising:

configuring an Access Gateway (AGW) system to interface with at least one radio access network and at least one packet data network;

receiving at a session control component a communication session control request;

obtaining session information and policy decisions from a policy decision component corresponding to the communication session control request using the session control component;

directly reconfiguring a policy enforcement component of the AGW system with the obtained session information and policy decisions using the session control component; and

enforcing the obtained session information and policy decisions corresponding to the communication session control request at the AGW system using the policy enforcement component,

wherein the AGW system comprises a Gateway General Packet Radio Service (GPRS) Support Node (GGSN),

wherein the AGW, the policy enforcement component and the session control component are integrated into a single device,

wherein the single device is in communication with the radio access network and the packet data network, and

wherein reconfiguration of the policy enforcement component is achieved internally within the AGW without Mobile Internet Protocol (MIP) messages being exchanged, thereby reducing the signaling associated with at least one of the setup, update and teardown of a communication session.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 23, 2011
From: STARENT NETWORKS LLC
To: CISCO TECHNOLOGY, INC.
Reel/Frame 026794/0924 →
CHANGE OF NAME Recorded Mar 9, 2010
From: STARENT NETWORKS, CORP.
To: STARENT NETWORKS LLC
Reel/Frame 024050/0446 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 12, 2007
From: RAMANKUTTY, RAJESH
To: STARENT NETWORKS CORPORATION
Reel/Frame 018879/0231 →