METHODS, MEDIA, AND DEVICES FOR MOVING A CONNECTION FROM ONE POINT OF ACCESS TO ANOTHER POINT OF ACCESS

• US 20080285520A1
• Filed: 05/22/2008
• Published: 11/20/2008
• Est. Priority Date: 11/22/2005
• Status: Active Grant

• Current Assignee: Trustees Of Columbia University In The City Of New York (Columbia University)
• Original Assignee: Trustees Of Columbia University In The City Of New York (Columbia University)
• Inventors: FORTE, Andrea G., SCHULZRINNE, Henning G.
• Granted Patent: US 8,750,242 B2
• Time in Patent Office: Days
• US Class Current: 370/331
• CPC Class Codes: H04L 12/1886 with traffic restrictions for efficiency improvement, e.g. involving subnets or subdomains
• CPC Class Codes: H04L 47/125 by balancing the load, e.g. traffic engineering
• CPC Class Codes: H04L 49/109 Integrated on microchip, e.g. switch-on-chip
• CPC Class Codes: H04W 36/0016 Hand-off preparation specially adapted for end-to-end data sessions
• CPC Class Codes: H04W 36/0019 adapted for mobile IP [MIP]
• CPC Class Codes: H04W 36/0061 of neighbour cell information
• CPC Class Codes: H04W 36/0064 of control information between different access points
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks
• CPC Class Codes: H04W 92/20 between access points

Abstract

Systems, methods, media, and devices for providing cooperation among digital processing devices in wireless networks are provided. In some embodiments, methods for moving a connection from one point of access to another point of access are provided, sending a request for information from a first mobile node to at least one other node, wherein the request for information contains first information identifying at least one point of access; receiving a response containing second information identifying at least one point of access from the at least one other node; and establishing a connection between the first mobile node and a point of access identified in the second information. In some embodiments, devices that can move a connection from one point of access to another point of access are provided.

Claims

1. A method for moving a connection from one point of access to another point of access, comprising:

sending a request for information from a first mobile node to at least one other node, wherein the request for information contains first information identifying at least one point of access;

receiving a response containing second information identifying at least one point of access from the at least one other node; and

establishing a connection between the first mobile node and a point of access identified in the second information.

2. The method of claim 1, wherein the at least one other node is at least one mobile node.

3. The method of claim 1, wherein at least one of the first mobile node and the at least one other node is an Internet Packet phone.

4. The method of claim 1, wherein the information identifying at least one point of access of at least one of the first information and second information is a Media Access Control address.

5. The method of claim 1, wherein the information identifying at least one point of access of at least one of the first information and second information contains at least one of a channel and a subnet identifier.

6. The method of claim 1, wherein at least one of the request and the response are multicast packets.

7. The method of claim 1, wherein at least one of the first mobile node and the at least one other node is in ad-hoc mode.

8. The method of claim 1, wherein the first information and the second information each contain a list and wherein the lists are of the same format.

9. The method of claim 1, further comprising storing the second information in a cache.

10. A method for moving a connection from one point of access to another point of access, comprising:

sending a request for information from a first mobile node to at least one other node, wherein the request for information identifies a network;

receiving a response identifying at least one node in the identified network;

sending a request for an address to the at least one identified node;

receiving a response containing the address; and

establishing a connection between the first mobile node and a point of access in the identified network using the address.

11. The method of claim 10, further comprising forwarding packets between a correspondent node and the first mobile node while authenticating with the identified network.

12. The method of claim 10, wherein the address is an Internet Packet address.

13. The method of claim 10, wherein the first mobile node and the at least one identified node are in different subnets before the establishing of a connection.

14. The method of claim 10, wherein the at least one identified node is a mobile node.

15. The method of claim 10, wherein at least one of the first mobile node and the at least one identified node is an Internet Packet phone.

16. A device that can move a connection from one point of access to another point of access, comprising:

an interface in communication with a network;

a memory; and

a processor in communication with the memory and the interface;

wherein the processor;

sends a request for information to at least one node, wherein the request for information contains first information identifying at least one point of access;

receives a response containing second information identifying at least one point of access from the at least one node; and

establishes a connection with a point of access identified in the second information.

17. The device of claim 16, wherein the at least one node is a mobile node.

18. The device of claim 16, wherein at least one of the device and the at least one node is an Internet Packet phone.

19. The device of claim 16, wherein the information identifying at least one point of access of at least one of the first information and second information is a Media Access Control address.

20. The device of claim 16, wherein the information identifying at least one point of access of at least one of the first information and second information contains at least one of a channel and a subnet identifier.

21. The device of claim 16, wherein at least one of the request and the response are multicast packets.

22. The device of claim 16, wherein at least one of the device and the at least one node is in ad-hoc mode.

23. The device of claim 16, wherein the first information and the second information each contain a list and wherein the lists are of the same format.

24. The device of claim 16, wherein the processor further stores the second information in a cache.

25. A device that can move a connection from one point of access to another point of access, comprising:

an interface in communication with a network;

a memory; and

a processor in communication with the memory and the interface;

wherein the processor;

sends a request for information to at least one node, wherein the request for information identifies a network;

receives a response identifying at least one node in the identified network;

sends a request for an address to the at least one identified node;

receives a response containing the address; and

establishes a connection with a point of access in the identified network using the address.

26. The device of claim 25, wherein the processor further forwards packets through another node while authenticating with the identified network.

27. The device of claim 25, wherein the address is an Internet Packet address.

28. The device of claim 25, wherein the device and the at least one identified node are in different subnets before the establishing of a connection.

29. The device of claim 25, wherein the at least one identified node is a mobile node.

30. The device of claim 25, wherein at least one of the device and the at least one identified node is an Internet Packet phone.

31. A computer-readable medium containing computer-executable instructions that, when executed by a processor, cause the processor to perform a method for moving a connection from one point of access to another point of access, the method comprising:

sending a request for information from a first mobile node to at least one other node, wherein the request for information contains first information identifying at least one point of access;

receiving a response containing second information identifying at least one point of access from the at least one other node; and

establishing a connection between the first mobile node and a point of access identified in the second information.

32. The computer-readable medium of claim 31, wherein the at least one other node is a mobile node.

33. The computer-readable medium of claim 31, wherein at least one of the first mobile node and the at least one other node is an Internet Packet phone.

34. The computer-readable medium of claim 31, wherein the information identifying at least one point of access of at least one of the first information and second information is a Media Access Control address.

35. The computer-readable medium of claim 31, wherein the information identifying at least one point of access of at least one of the first information and second information contains at least one of a channel and a subnet identifier.

36. The computer-readable medium of claim 31, wherein at least one of the request and the response are multicast packets.

37. The computer-readable medium of claim 31, wherein at least one of the first mobile node and the at least one other node is in ad-hoc mode.

38. The computer-readable medium of claim 31, wherein the first information and the second information each contain a list and wherein the lists are of the same format.

39. The computer-readable medium of claim 31, the method further comprising storing the second information in a cache.

40. A computer-readable medium containing computer-executable instructions that, when executed by a processor, cause the processor to perform a method for moving a connection from one point of access to another point of access, the method comprising:

sending a request for information from a first mobile node to at least one other node, wherein the request for information identifies a network;

receiving a response identifying at least one node in the identified network;

sending a request for an address to the at least one identified node;

receiving a response containing the address; and

establishing a connection between the first mobile node and a point of access in the identified network using the address.

41. The computer-readable medium of claim 40, the method further comprising forwarding packets between a correspondent node and the first mobile node while authenticating with the identified network.

42. The computer-readable medium of claim 40, wherein the address is an Internet Packet address.

43. The computer-readable medium of claim 40, wherein the first mobile node and the at least one identified node are in different subnets before the establishing of a connection.

44. The computer-readable medium of claim 40, wherein the at least one identified node is at least one mobile node.

45. The computer-readable medium of claim 40, wherein at least one of the first mobile node and the at least one identified node is an Internet Packet phone.