Methods, media, and devices for moving a connection from one point of access to another point of access

• US 8,750,242 B2
• Filed: 05/22/2008
• Issued: 06/10/2014
• 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.
• Primary Examiner(s): Patel, Jay P
• Application Number:
  US12/125,617
• Publication Number:
  US 20080285520A1
• Time in Patent Office: 2,210 Days
• Field of Search: 370331-334
• 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 36/0011 for data sessions of end-to-end connection
• CPC Class Codes: H04W 36/0016 Hand-off preparation specially adapted for end-to-end data sessions
• CPC Class Codes: H04W 36/0055 Transmission or use of information for re-establishing the radio link
• CPC Class Codes: H04W 36/0061 of neighbour cell information
• CPC Class Codes: H04W 36/08 Reselecting an access point
• 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 facilitating moving a connection from one point of access to another point of access, comprising:

receiving a request for information from a first mobile node at at least one other mobile node, wherein the request for information contains at least one first entry, wherein each first entry is for a unique point of access in a first set of at least one point of access and includes first information identifying the unique point of access corresponding to the first entry;

determining that a second set of at least one point of access are not included in the first set of points of access; and

sending a response containing at least one second entry, wherein each second entry is for a unique point of access in the second set of at least one point of access and includes second information identifying the unique point of access corresponding to the second entry.

2. The method of claim 1, wherein at least one of the first mobile node and the at least one other mobile node is voice-over-Internet-Protocol phone.

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

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

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

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

7. 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.

8. The method of claim 1, further comprising storing the at least one second entry in a cache.

25. The method of claim 1, further comprising establishing a connection between the first mobile node and a point of access identified in the second information.

9. A device that can facilitate moving 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;

receives a request for information from at least one mobile node, wherein the request for information contains at least one first entry, wherein each first entry is for a unique point of access in a first set of at least one point of access and includes first information identifying the unique point of access corresponding to the first entry;

determines that a second set of at least one point of access are not included in the first set of points of access; and

sends a response containing at least one second entry, wherein each second entry is for a unique point of access in the second set of at least one point of access and includes second information identifying the unique point of access corresponding to the second entry.

10. The device of claim 9, wherein at least one of the device and the at least one mobile node is voice-over-Internet-Protocol phone.

11. The device of claim 9, wherein the information identifying the unique point of access of at least one of the first information and the second information is a Media Access Control address.

12. The device of claim 9, wherein the information identifying the unique point of access of at least one of the first information and the second information contains at least one of a channel and a subnet identifier.

13. The device of claim 9, wherein at least one of the request and the response are multicast packets.

14. The device of claim 9, wherein at least one of the device and the at least one mobile node is in ad-hoc mode.

15. The device of claim 9, wherein the first information and the second information each contain a list and wherein the lists are of the same format.

16. The device of claim 9, wherein the processor further stores the at least one second entry in a cache.

26. The device of claim 9, wherein the processor also establishes a connection between the first mobile node and a point of access identified in the second information.

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

receiving a request for information from a first mobile node at at least one other mobile node, wherein the request for information contains at least one first entry, wherein each first entry is for a unique point of access in a first set of at least one point of access and includes first information identifying the unique point of access corresponding to the first entry;

determining that a second set of at least one point of access are not included in the first set of points of access; and

sending a response containing at least one second entry, wherein each second entry is for a unique point of access in the second set of at least one point of access and includes second information identifying the unique point of access corresponding to the second entry.

18. The non-transitory computer-readable medium of claim 17, wherein at least one of the first mobile node and the at least one other mobile node is voice-over-Internet-Protocol phone.

19. The non-transitory computer-readable medium of claim 17, wherein the information identifying the unique point of access of at least one of the first information and the second information is a Media Access Control address.

20. The non-transitory computer-readable medium of claim 17, wherein the information identifying the unique point of access of at least one of the first information and the second information contains at least one of a channel and a subnet identifier.

21. The non-transitory computer-readable medium of claim 17, wherein at least one of the request and the response are multicast packets.

22. The non-transitory computer-readable medium of claim 17, wherein at least one of the first mobile node and the at least one other mobile node is in ad-hoc mode.

23. The non-transitory computer-readable medium of claim 17, wherein the first information and the second information each contain a list and wherein the lists are of the same format.

24. The non-transitory computer-readable medium of claim 17, the method further comprising storing the at least one second entry in a cache.

27. The non-transitory computer-readable medium of claim 17, wherein the method further comprises establishing a connection between the first mobile node and a point of access identified in the second information.