SYSTEM AND METHOD FOR SESSION SWEEPING BETWEEN DEVICES

• US 20110238862A1
• Filed: 03/29/2010
• Published: 09/29/2011
• Est. Priority Date: 03/29/2010
• Status: Active Grant

• Current Assignee: Damaka, Inc.
• Original Assignee: Damaka, Inc.
• Inventors: CHATURVEDI, SIVAKUMAR, GUNDABATHULA, SATISH
• Granted Patent: US 9,043,488 B2
• Time in Patent Office: Days
• US Class Current: 709/238
• CPC Class Codes: H04L 63/0807 using tickets, e.g. Kerberos cryptographic mechanisms or cryptographic arrangements for entity authentication using tickets or tokens H04L9/3213
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 67/104 Peer-to-peer [P2P] networks
• CPC Class Codes: H04L 67/142 Managing session states for stateless protocols; Signalling session states; State transitions; Keeping-state mechanisms
• CPC Class Codes: H04L 67/146 Markers for unambiguous identification of a particular session, e.g. session cookie or URL-encoding
• CPC Class Codes: H04W 4/16 Communication-related supplementary services, e.g. call-transfer or call-hold

Abstract

An improved system and method are disclosed for peer-to-peer communications. In one example, the method enables an endpoint to sweep an ongoing communication session to another endpoint by transferring session information between the endpoints.

Claims

1. A method for sweeping an active session existing between a first endpoint and a second endpoint from the first endpoint to a third endpoint, the method comprising:

providing, by the third endpoint, authentication credentials to an access server to gain access to a peer-to-peer network, wherein the access server returns a buddy list associated with the authentication credentials to the third endpoint in response, and wherein the second endpoint is included on the buddy list as an endpoint with which the third endpoint is authorized to communicate;

identifying, by the third endpoint, that the first and third endpoints are simultaneously logged in because they gained access to the peer-to-peer network using identical authentication credentials;

sending, by the third endpoint, a go away message directly to the first endpoint;

receiving, by the third endpoint, session information from the first endpoint corresponding to the active session occurring between the first and second endpoints, wherein the session information includes information needed by the third endpoint to participate in the active session with the second endpoint;

sending, by the third endpoint, an update message directly to the second endpoint, wherein the update message instructs the second endpoint to transition the active session from the first endpoint to the second endpoint and includes information needed for the second endpoint to transition the active session from the first endpoint to the third endpoint; and

receiving, by the third endpoint, a response to the update message from the second endpoint, wherein the response includes information needed for the third endpoint to participate in the active session with the second endpoint.

2. The method of claim 1 further comprising sending, by the third endpoint, a presence message directly to the second endpoint to notify the second endpoint that the third endpoint is online.

3. The method of claim 2 further comprising:

receiving, by the third endpoint, a response to the presence message directly from the second endpoint, wherein the response identifies the second endpoint as the sender of the response; and

determining, by the third endpoint, whether the second endpoint identified in the response is the same as an endpoint identified in the session information received from the first endpoint.

4. The method of claim 1 wherein the receiving the session information includes receiving the session information by the third endpoint directly from the first endpoint via one of a wireline and a wireless interface.

5. The method of claim 1 wherein the receiving the session information includes retrieving the session information by the third endpoint from a memory location accessible to both the first endpoint and the third endpoint.

6. The method of claim 1 wherein the session information includes Session Initiation Protocol (SIP) dialog information.

7. The method of claim 6 wherein the update message is a SIP UPDATE message.

8. The method of claim 1 wherein the session information includes state information needed to synchronize a state machine on the third endpoint with a state machine on the second endpoint.

9. The method of claim 1 wherein the first and third endpoints are located on a single physical device.

10. A method for sweeping an active session existing between a first endpoint and a second endpoint from the first endpoint to a third endpoint, the method comprising:

receiving, by the first endpoint, a go away message directly from the third endpoint;

checking, by the first endpoint, a policy associated with the first endpoint to determine an action to be taken upon receipt of the go away message;

identifying, by the first endpoint, that the first endpoint is engaged in an active session with the second endpoint; and

transferring, by the first endpoint, session information to the third endpoint, wherein the session information includes information needed by the third endpoint to enter the active session with the second endpoint.

11. The method of claim 10 further comprising determining, by the first endpoint, whether to transfer the session information to the third endpoint based on the policy.

12. The method of claim 11 further comprising determining, by the first endpoint, whether a timer has expired, wherein the transferring occurs only within a period of time defined by the timer.

13. The method of claim 10 wherein the transferring the session information includes sending the session information directly from the first endpoint to the third endpoint via one of a wireline and a wireless interface.

14. The method of claim 10 wherein the transferring the session information includes storing the session information by the first endpoint in a memory location accessible to both the first endpoint and the third endpoint.

15. The method of claim 10 wherein the session information includes Session Initiation Protocol (SIP) dialog information.

16. The method of claim 10 wherein the session information includes state information needed to synchronize a state machine on the third endpoint with a state machine on the second endpoint.

17. The method of claim 10 wherein the first and third endpoints are located on a single physical device.

18. A system comprising:

a network interface;

a processor coupled to the network interface; and

a memory coupled to the processor and containing a plurality of instructions for execution by the processor, the instructions including instructions for configuring a third endpoint stored at least partially in the memory to sweep an active session existing between a first endpoint and a second endpoint from the first endpoint to the third endpoint by;

providing, by the third endpoint, authentication credentials to an access server to gain access to a peer-to-peer network, wherein the access server returns a buddy list associated with the authentication credentials to the third endpoint in response, and wherein the second endpoint is included on the buddy list as an endpoint with which the third endpoint is authorized to communicate;

identifying, by the third endpoint, that the first and third endpoints are simultaneously logged in because they gained access to the peer-to-peer network using identical authentication credentials;

sending, by the third endpoint, a go away message directly to the first endpoint;

receiving, by the third endpoint, session information from the first endpoint corresponding to the session occurring between the first and second endpoints, wherein the session information includes information needed by the third endpoint to participate in the session with the second endpoint;

sending, by the third endpoint, an update message directly to the second endpoint, wherein the update message instructs the second endpoint to switch the active session from the first endpoint to the second endpoint and includes information needed for the second endpoint to transition the active session from the first endpoint to the third endpoint; and

receiving, by the third endpoint, a response to the update message from the second endpoint, wherein the response includes information needed for the third endpoint to participate in the active session with the second endpoint.

19. The system of claim 18 further comprising instructions for the first endpoint, wherein the first endpoint is stored at least partially in the memory, the instructions including:

receiving, by the first endpoint, the go away message directly from the third endpoint;

checking, by the first endpoint, a policy associated with the first endpoint to determine an action to be taken upon receipt of the go away message;

identifying, by the first endpoint, that the first endpoint is engaged in the active session with the second endpoint; and

transferring, by the first endpoint, session information to the third endpoint, wherein the session information includes information needed by the third endpoint to enter the active session with the second endpoint.

20. The system of claim 19 wherein the transferring the session information by the first endpoint includes storing the session information by the first endpoint in a memory location accessible to both the first endpoint and the third endpoint, and wherein the receiving, by the third endpoint, the session information includes retrieving the session information by the third endpoint from the memory location.