Air interface selection between nodes in peer-to-peer/ad-hoc networks

• US 8,194,600 B2
• Filed: 11/24/2008
• Issued: 06/05/2012
• Est. Priority Date: 11/24/2008
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Nagaraja, Nagendra
• Primary Examiner(s): Pham, Chi
• Assistant Examiner(s): Hyun, Soon-Dong
• Application Number:
  US12/276,837
• Publication Number:
  US 20100128695A1
• Time in Patent Office: 1,289 Days
• Field of Search: None
• US Class Current: 370/329
• CPC Class Codes: H04W 36/0066 of control information between different types of networks in order to establish a new radio link in the target network
• CPC Class Codes: H04W 76/11 Allocation or use of connection identifiers
• CPC Class Codes: H04W 76/14 Direct-mode setup
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks

Abstract

Aspects describe pairs of nodes negotiating air interfaces in a peer-to-peer and/or ad hoc network. The negotiation can take into account the capability of each node. The negotiation can be performed on a default link and after negotiation, the nodes can facilitate a communication handoff to the negotiated link. Further, one or more nodes can support multiple air interfaces, wherein nodes that support multiple air interfaces can establish more than one air interface with peer nodes over similar air interfaces or over different air interfaces as a function of negotiation between the nodes.

Claims

1. A first mobile device comprising:

a memory; and

a processor coupled to the memory, the processor and the memory being cooperatively configured to;

establish a first link for communication with a second mobile device;

transmit at least two link identifiers associated with at least two links and rankings associated with each of the at least two link identifiers to the second mobile device; and

negotiate with the second mobile device a second link for communication with the second mobile device, the second link being one of the at least two links, the second link being selected based on the at least two link identifiers and the rankings.

2. The first mobile device of claim 1, wherein the first link is a default link.

3. The first mobile device of claim 1, wherein the at least two links comprise links that utilize at least two different communication technologies supported by the first mobile device.

4. The first mobile device of claim 3, wherein the at least two different communication technologies comprise at least two of the following:

orthogonal frequency-division multiplexing, global system for mobile communications, Wi-Fi, code division multiplexing, frequency division multiplexing, and Bluetooth.

5. The first mobile device of claim 1, wherein the rankings indicate a preference order for utilization of one of the at least two links for communication with the second mobile device.

6. The first mobile device of claim 1, wherein the first link and the second link are communication links that are part of an ad hoc wireless network.

7. The first mobile device of claim 1, wherein the processor and the memory are further cooperatively configured to negotiate with the second mobile device a third link for communication with the second mobile device, the third link being one of the at least two links, the third link being selected either periodically or based on a changed condition of the second link.

8. The first mobile device of claim 1, wherein the processor and the memory are further cooperatively configured to:

detect a change in a link rating of the second link; and

negotiate with the second mobile device a third link for communication with the second mobile device based on the detected link rating change.

9. The first mobile device of claim 8, wherein the change is detected based on at least one of the following:

obtaining statistics based on network signaling, proactively scanning links, and cognitive radio techniques.

10. The first mobile device of claim 1, wherein the processor and the memory are further cooperatively configured to periodically update and transmit the rankings to the second mobile device.

11. A method for communicating in a wireless network, the method comprising:

establishing a first link for communication between a first mobile device and a second mobile device;

transmitting at least two link identifiers associated with at least two links and rankings associated with each of the at least two link identifiers from the first mobile device to the second mobile device; and

negotiating between the first mobile device and the second mobile device a second link for communication between the first mobile device and the second mobile device, the second link being one of the at least two links, the second link being selected based on the at least two link identifiers and the rankings.

12. The method of claim 11, wherein the first link is a default link.

13. The method of claim 11, wherein the at least two links comprise links that utilize at least two different communication technologies supported by the first mobile device.

14. The method of claim 13, wherein the at least two different communication technologies comprise at least two of the following:

orthogonal frequency-division multiplexing, global system for mobile communications, Wi-Fi, code division multiplexing, frequency division multiplexing, and Bluetooth.

15. The method of claim 11, wherein the rankings indicate a preference order for utilization of one of the at least two links for communication between the first mobile device and the second mobile device.

16. The method of claim 11, wherein the first link and the second link are communication links that are part of an ad hoc wireless network.

17. The method of claim 11, further comprising negotiating between the first mobile device and the second mobile device a third link for communication the first mobile device and the second mobile device, the third link being one of the at least two links, the third link being selected either periodically or based on a changed condition of the second link.

18. The method of claim 11, further comprising:

detecting a change in a link rating of the second link; and

negotiating the first mobile device and the second mobile device a third link for communication the first mobile device and the second mobile device based on the detected link rating change.

19. The method of claim 18, wherein the change is detected based on at least one of the following:

obtaining statistics based on network signaling, proactively scanning links, and cognitive radio techniques.

20. The method of claim 11, further comprising periodically updating and transmitting the rankings from the first mobile device to the second mobile device.

21. A first mobile device comprising:

means for establishing a first link for communication with a second mobile device;

means for transmitting at least two link identifiers associated with at least two links and rankings associated with each of the at least two link identifiers to the second mobile device; and

means for negotiating with the second mobile device a second link for communication with the second mobile device, the second link being one of the at least two links, the second link being selected based on the at least two link identifiers and the rankings.

22. A computer program product, comprising:

a non-transitory computer readable medium comprising;

code for causing a computer to establish a first link for communication with a second mobile device;

code for causing the computer to transmit at least two link identifiers associated with at least two links and rankings associated with each of the at least two link identifiers to the second mobile device; and

code for causing the computer to negotiate with the second mobile device a second link for communication with the second mobile device, the second link being one of the at least two links, the second link being selected based on the at least two link identifiers and the rankings.