Reserving network resources for a communication session

• US 20070014256A1
• Filed: 07/12/2005
• Published: 01/18/2007
• Est. Priority Date: 07/12/2005
• Status: Active Grant

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: Leung, Kent, Iyer, Jayaraman, Le Faucheur, Francois, Lindert, David, Oswal, Anand, Malaviya, Viren
• Granted Patent: US 7,787,414 B2
• Time in Patent Office: Days
• US Class Current: 370/328
• CPC Class Codes: H04W 28/26 Resource reservation
• CPC Class Codes: H04W 76/12 Setup of transport tunnels
• CPC Class Codes: H04W 80/04 Network layer protocols, e.g. mobile IP [Internet Protocol]

Abstract

Requesting a network resource includes facilitating a communication session between a mobile node and an endpoint. A trigger event is received at a first anchor point associated with the mobile node. The trigger event indicates that reservation of a network resource is being requested for the communication session. A second anchor point associated with the endpoint is identified. Reservation of the network resources for the communication sessions is initiated over a tunnel between the first anchor point and the second anchor point.

Claims

1. A method for requesting a network resource for a communication session, comprising:

facilitating a communication session between a mobile node and an endpoint;

receiving a trigger event at a first anchor point, the first anchor point associated with the mobile node, the trigger event indicating that reservation of a network resource is being requested for the communication session;

identifying a second anchor point associated with the endpoint; and

initiating reservation of the network resource for the communication session over a tunnel, the tunnel being between the first anchor point and the second anchor point.

2. The method of claim 1, wherein:

receiving the trigger event at the first anchor point further comprises;

receiving the trigger event indicating a quality of service condition, the quality of service condition to be satisfied by the network resource; and

initiating reservation of the network resource further comprises;

requesting the network resource according to the quality of service condition.

3. The method of claim 1, wherein:

receiving the trigger event at the first anchor point further comprises;

receiving the trigger event comprising a path message, the path message indicating a quality of service; and

initiating reservation of the network resource further comprises;

requesting the network resource according to the quality of service.

4. The method of claim 1, wherein initiating reservation of the network resource further comprises:

performing the reservation in the network.

5. The method of claim 1, further comprising:

performing an aggregated management service at the first anchor point, the aggregated management service comprising at least one of a connection admission control management service, a mobility management service, and a quality of service management service.

6. The method of claim 1, further comprising:

initiating route optimization for the flow to identify a path for the tunnel.

10. The first anchor point of claim 5, the interface is operable to receive the trigger event by:

receiving a call control message.

7. A first anchor point operable to request a network resource for a communication session, comprising:

an interface operable to;

receive a plurality of messages to facilitate a communication session between a mobile node and an endpoint, the mobile node associated with the first anchor point; and

receive a trigger event indicating that reservation of a network resource is being requested for the communication session; and

a processor coupled to the interface and operable to;

identify a second anchor point associated with the endpoint; and

initiate reservation of the network resource for the communication session over a tunnel, the tunnel being between the first anchor point and the second anchor point.

8. The first anchor point of claim 7, wherein:

the interface is operable to receive the trigger event by;

receiving the trigger event indicating a quality of service condition, the quality of service condition to be satisfied by the network resource; and

the processor is operable to initiate reservation of the network resource by;

requesting the network resource according to the quality of service condition.

9. The first anchor point of claim 7, wherein:

the interface is operable to receive the trigger event by;

receiving the trigger event comprising a path message, the path message indicating a quality of service; and

the processor is operable to initiate reservation of the network resource by;

requesting the network resource according to the quality of service.

11. The first anchor point of claim 7, the processor is further operable to:

perform an aggregated management service at the first anchor point, the aggregated management service comprising at least one of a connection admission control management service, a mobility management service, and a quality of service management service.

12. The first anchor point of claim 7, the processor is further operable to:

initiate route optimization for the flow to identify a path for the tunnel.

13. The first anchor point of claim 7, wherein:

the interface is operable to receive the trigger event by;

receiving the trigger event indicating a quality of service condition, the quality of service condition to be satisfied by the network resource; and

receiving a call control message; and

the processor is operable to;

initiate reservation of the network resource by;

requesting the network resource according to the quality of service condition;

perform an aggregated management service at the first anchor point, the aggregated management service comprising at least one of a connection admission control management service, a mobility management service, and a quality of service management service; and

initiate route optimization for the flow to identify a path for the tunnel.

14. A system for requesting a network resource for a communication session, comprising:

means for facilitating a communication session between a mobile node and an endpoint;

means for receiving a trigger event at a first anchor point, the first anchor point associated with the mobile node, the trigger event indicating that reservation of a network resource is being requested for the communication session;

means for identifying a second anchor point associated with the endpoint; and

means for initiating reservation of the network resource for the communication session over a tunnel, the tunnel being between the first anchor point and the second anchor point.

15. A method for optimizing a path for a communication session, comprising:

facilitating a plurality of communication sessions between a plurality of mobile nodes and a plurality of endpoints, the mobile nodes communicating through a first anchor point, the endpoints communicating through a second anchor point;

receiving a plurality of trigger events at the first anchor point, a trigger event indicating that reservation of a network resource is being requested for a communication session; and

initiating reservation of the network resources for the communication sessions over a tunnel, the tunnel being between the first anchor point and the second anchor point.

16. The method of claim 15, wherein:

receiving the plurality of trigger events at the first anchor point further comprises;

receiving the trigger events, each trigger event indicating a quality of service condition, the quality of service condition to be satisfied by the network resource; and

initiating reservation of the network resources further comprises;

requesting the network resources according to the quality of service conditions.

17. A first anchor point for optimizing a path for a communication session, comprising:

an interface operable to;

receive a plurality of messages to facilitate a plurality of communication sessions between a plurality of mobile nodes and a plurality of endpoints, the mobile nodes communicating through the first anchor point, the endpoints communicating through a second anchor point; and

receive a plurality of trigger events, a trigger event indicating that reservation of a network resource is being requested for a communication session; and

a processor coupled to the interface and operable to;

initiate reservation of the network resources for the communication sessions over a tunnel, the tunnel being between the first anchor point and the second anchor point.

18. The first anchor point of claim 17, wherein:

the interface is operable to receive the trigger event by;

receiving the trigger events, each trigger event indicating a quality of service condition, the quality of service condition to be satisfied by the network resource; and

the processor is operable to initiate reservation of the network resources by;

requesting the network resources according to the quality of service conditions.

19. A system for optimizing a path for a communication session, comprising:

means for facilitating a plurality of communication sessions between a plurality of mobile nodes and a plurality of endpoints, the mobile nodes communicating through a first anchor point, the endpoints communicating through a second anchor point;

means for receiving a plurality of trigger events at the first anchor point, a trigger event indicating that reservation of a network resource is being requested for a communication session;

means for initiating reservation of the network resources for the communication sessions over a tunnel, the tunnel being between the first anchor point and the second anchor point.

20. A network for optimizing a path for a communication session, comprising:

a first anchor point and a second anchor point operable to;

facilitate a plurality of communication sessions between a plurality of mobile nodes and a plurality of endpoints, the mobile nodes communicating through a first anchor point, the endpoints communicating through a second anchor point;

the first anchor point further operable to;

receive a plurality of trigger events, a trigger event indicating that reservation of a network resource is being requested for a communication session; and

initiating reservation of the network resources for the communication sessions over a tunnel, the tunnel being between the first anchor point and the second anchor point.

21. The network of claim 20, wherein the first anchor point is further operable to:

receive the plurality of trigger events by;

receiving the trigger events, each trigger event indicating a quality of service condition, the quality of service condition to be satisfied by the network resource; and

initiate reservation of the network resources by;

requesting the network resources according to the quality of service conditions.

22. The network of claim 20, wherein at least one trigger event comprises a call control message.

23. The network of claim 20, further comprising a home agent operable to inform the first anchor point of the second anchor point.

24. The network of claim 20, wherein:

the first anchor point is further operable to;

receive the plurality of trigger events by;

receiving the trigger events, each trigger event indicating a quality of service condition, the quality of service condition to be satisfied by the network resource; and

initiate reservation of the network resources by;

requesting the network resources according to the quality of service conditions; and

at least one trigger event comprises a call control message; and

further comprising a home agent operable to inform the first anchor point of the second anchor point.