System and method for endpoint handoff in a hybrid peer-to-peer networking environment

• US 8,380,859 B2
• Filed: 11/26/2008
• Issued: 02/19/2013
• Est. Priority Date: 11/28/2007
• Status: Active Grant

• Current Assignee: Damaka, Inc.
• Original Assignee: Damaka, Inc.
• Inventors: Chaturvedi, Sivakumar, Gundabathula, Satish
• Primary Examiner(s): Duong, Oanh
• Application Number:
  US12/745,492
• Publication Number:
  US 20100312902A1
• Time in Patent Office: 1,546 Days
• Field of Search: 709223-228, 370/395.2
• US Class Current: 709/228
• CPC Class Codes: H04L 65/1066 Session management
• CPC Class Codes: H04L 65/1083 In-session procedures
• 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 67/147 Signalling methods or messages providing extensions to protocols defined by standardisation
• CPC Class Codes: H04L 67/148 Migration or transfer of sessions
• CPC Class Codes: H04M 2207/18 wireless networks
• CPC Class Codes: H04M 7/0063 where the network is a peer-to-peer network
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters
• CPC Class Codes: H04W 36/0083 Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
• CPC Class Codes: H04W 76/19 Connection re-establishment
• CPC Class Codes: H04W 92/18 between terminal devices

Abstract

A system and method for endpoint handoff in a hybrid peer-to-peer networking environment are provided. In one example, the method includes logging into the peer-to-peer network by a first endpoint. The first endpoint directly notifies a second endpoint that the second endpoint is to transfer an active communication session existing between the second endpoint and a third endpoint from the second endpoint to the first endpoint. The first endpoint receives session parameters associated with the active communication session directly from the second endpoint and directly notifies the third endpoint that the first endpoint is online. The first endpoint then re-establishes the active communication session with the third endpoint using the session parameters.

Claims

1. A method for endpoint handoff in a hybrid peer-to-peer networking environment comprising:

logging into a peer-to-peer network by a first endpoint;

sending, by the first endpoint, a query message directly to a second endpoint to determine whether the second endpoint is involved in any active communication sessions, wherein the query message is sent after receiving presence information about the second endpoint in response to logging into the peer-to-peer network;

receiving, at the first endpoint, session parameters associated with an active communication session directly from the second endpoint, wherein the session parameters indicate that the communication session exists between the second endpoint and a third endpoint, and wherein the session parameters indicate that the communication session includes two-way audio information sent between the second and third endpoints;

sending, by the first endpoint, audio information directly to the third endpoint after receiving the session parameters;

sending, by the first endpoint, an instruction directly to the second endpoint to stop sending audio from the second endpoint to the third endpoint;

determining, by the first endpoint, that audio is not being received from the third endpoint;

communicating, by the first endpoint, directly with the third endpoint using out-of-band signaling to re-establish the communication session;

closing, by the first endpoint, the communication session with the third endpoint without sending a termination signal to the third endpoint;

obtaining, by the first endpoint, a new Internet Protocol (IP) address and port;

restarting, by the first endpoint, the audio session;

sending, by the first endpoint, the new IP address and port directly to the third endpoint; and

receiving, by the first endpoint, audio information associated with the communication session directly from the third endpoint.

2. The method of claim 1 further comprising sending, by the first endpoint, at least one instruction directly to the second endpoint after receiving the session parameters from the second endpoint, wherein the at least one instruction causes the second endpoint to perform an operation designated in the at least one instruction.

3. The method of claim 2 wherein the at least one instruction includes an instruction to terminate the active communication session by the second endpoint.

4. The method of claim 2 wherein the at least one instruction includes an instruction to terminate the active communication session by the second endpoint without signaling the termination to the third endpoint.

5. The method of claim 2 wherein the at least one instruction includes an instruction to log off of the peer-to-peer network.

6. The method of claim 2 wherein the at least one instruction includes an instruction to shut down.

7. The method of claim 2 wherein the at least one instruction is user configurable based on a device type of the second endpoint.

8. The method of claim 1 wherein the logging into the peer-to-peer network by the first endpoint uses authentication information identical to that used by the second endpoint to log into the peer-to-peer network.

9. The method of claim 1 further comprising examining the session parameters, by the first endpoint, to determine that the active communication session includes audio.

10. The method of claim 1 further comprising examining the session parameters, by the first endpoint, to determine that the active communication session includes video.

11. The method of claim 1 further comprising examining the session parameters, by the first endpoint, to determine that the active communication session includes data.

12. A first endpoint device comprising:

a hardware platform; and

an architecture having

a graphical user interface (GUI) configured to provide user access to an endpoint engine;

an operating system configured to provide access to the hardware platform; and

the endpoint engine coupled to the GUI and the operating system, the endpoint engine having a plurality of functional components configured for;

logging into a peer-to-peer network by the first endpoint device;

sending a query, from the first endpoint device, directly to a second endpoint device in order to identify whether the second endpoint device is involved in any communication sessions, wherein the query message is sent after receiving presence information about the second endpoint device in response to logging into the peer-to-peer network;

receiving, by the first endpoint device, session parameters associated with a communication session directly from the second endpoint device, wherein the session parameters indicate that the communication session exists between the second endpoint device and a third endpoint device, and wherein the session parameters indicate that the communication session includes two-way audio information sent between the second and third endpoint devices;

sending, by the first endpoint device, audio information directly to the third endpoint device after receiving the session parameters;

sending, by the first endpoint device, an instruction directly to the second endpoint device to stop sending audio from the second endpoint device to the third endpoint device;

determining, by the first endpoint device, that audio is not being received from the third endpoint device;

communicating, by the first endpoint device, directly with the third endpoint device using out-of-band signaling to re-establish the communication session;

closing, by the first endpoint device, the communication session with the third endpoint device without sending a termination signal to the third endpoint device;

obtaining, by the first endpoint device, a new Internet Protocol (IP) address and port;

restarting, by the first endpoint device, the audio session; and

sending, by the first endpoint device, the new IP address and port directly to the third endpoint device; and

receiving, by the first endpoint device, audio information associated with the communication session directly from the third endpoint device.

13. The first endpoint device of claim 12 wherein the plurality of functional components are further configured for sending, by the first endpoint device, a message directly to the second endpoint device instructing the second endpoint device to not send a termination message to the third endpoint device.

14. The first endpoint device of claim 12 wherein the plurality of functional components are further configured for performing, by the first endpoint device, a STUN (Simple Traversal of UDP (user datagram protocol) through NATs (Network Address Translation)) operation to determine network parameters needed for communication with the first endpoint device by the third endpoint device.

15. The first endpoint device of claim 12 wherein the plurality of functional components are further configured for sending, by the first endpoint device, a notification directly to the third endpoint device that the first endpoint device had logged into the peer-to-peer network, wherein the notification is sent prior to sending audio information from the first endpoint device directly to the third endpoint device.

16. A first endpoint device comprising:

a hardware platform and

an architecture having

a graphical user interface (GUI) configured to provide user access to an endpoint engine;

an operating system configured to provide access to the hardware platform; and

the endpoint engine coupled to the GUI and the operating system, the endpoint engine having a plurality of functional components configured for;

logging into a peer-to-peer network by the first endpoint device;

sending a query, from the first endpoint device, directly to a second endpoint device in order to identify whether the second endpoint device is involved in any communication sessions, wherein the query message is sent after receiving presence information about the second endpoint device in response to logging into the peer-to-peer network;

receiving, by the first endpoint device, session parameters associated with a communication session directly from the second endpoint device, wherein the session parameters indicate that the communication session exists between the second endpoint device and a third endpoint device, and wherein the session parameters indicate that the communication session includes two-way audio information sent between the second and third endpoint devices;

sending, by the first endpoint device, audio information directly to the third endpoint device after receiving the session parameters;

sending, by the first endpoint device, an instruction directly to the second endpoint device to stop sending audio from the second endpoint device to the third endpoint device;

determining, by the first endpoint device, that audio is not being received from the third endpoint device;

communicating, by the first endpoint device, directly with the third endpoint device using out-of-band signaling to re-establish the communication session, wherein the communicating includes sending, by the first endpoint device, a message to the third endpoint device instructing the third endpoint device to stop sending audio and to not send a termination message; and

receiving, by the first endpoint, audio information associated with the communication session directly from the third endpoint device.

17. The first endpoint device of claim 16 wherein the sending, by the first endpoint device, the message to the third endpoint device instructing the third endpoint device to stop sending audio and to not send a termination message occurs only after the first endpoint device has not received audio from the third endpoint device for a certain amount of time.

18. A method for endpoint handoff in a hybrid peer-to-peer networking environment comprising:

logging into a peer-to-peer network by a first endpoint device;

sending a query, from the first endpoint device, directly to a second endpoint device in order to identify whether the second endpoint device is involved in any communication sessions, wherein the query message is sent after receiving presence information about the second endpoint device in response to logging into the peer-to-peer network;

receiving, by the first endpoint device, session parameters associated with a communication session directly from the second endpoint device, wherein the session parameters indicate that the communication session exists between the second endpoint device and a third endpoint device, and wherein the session parameters indicate that the communication session includes two-way audio information sent between the second and third endpoint devices;

sending, by the first endpoint device, audio information directly to the third endpoint device after receiving the session parameters;

sending, by the first endpoint device, an instruction directly to the second endpoint device to stop sending audio from the second endpoint device to the third endpoint device;

determining, by the first endpoint device, that audio is not being received from the third endpoint device;

communicating, by the first endpoint device, directly with the third endpoint device using out-of-band signaling to re-establish the communication session, wherein the communicating includes sending, by the first endpoint device, a message to the third endpoint device instructing the third endpoint device to stop sending audio and to not send a termination message; and

receiving, by the first endpoint, audio information associated with the communication session directly from the third endpoint device.