CONTROL CHANNEL NEGOTIATED INTERMITTENT WIRELESS COMMUNICATION

• US 20090088089A1
• Filed: 10/02/2007
• Published: 04/02/2009
• Est. Priority Date: 10/02/2007
• Status: Active Grant

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Mahajan, Ratul, Chandra, Ranveer, Gkantsidis, Christos, Wolman, Alastair, Xiong, Yongqiang, Rowstron, Antony Ian Taylor
• Granted Patent: US 8,184,656 B2
• Time in Patent Office: Days
• US Class Current: 455/101
• CPC Class Codes: H04B 7/02 Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas RAKE receivers H04B1/7115
• CPC Class Codes: H04B 7/04 using two or more spaced independent antennas
• CPC Class Codes: H04B 7/12 Frequency diversity
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters
• CPC Class Codes: H04W 64/006 with additional information processing, e.g. for direction or speed determination

Abstract

A dual mode communication device utilizes a control channel to exploit diversity, history, and context in advance of establishing a broadband data exchange session on a broadband but shorter range wireless data channel, maximizing productive use of such a session. Appropriate diversity for the negotiated session further enhance data transfer, including path diversity, radio technology diversity (e.g., WiMax, Wi-Fi, ultra wideband, Bluetooth), antenna diversity (e.g., MIMO), modulation diversity (e.g., rate selection for 802.11, or symbol length selection to combat multi-path fading), and frequency diversity (e.g., 2.4 GHz versus 5 GHz). Historical information about channel characteristics optimize the selection of channel parameters with respect to the diversity choices. In addition, context information such as location and speed can be used to categorize the historical information that is collected to further optimize channel parameters.

Claims

1. A portable wireless device for performing a short duration digital data exchange with another wireless device, comprising:

a first wireless communication channel for performing a data exchange session;

a second wireless communication channel of longer range than the first wireless communication channel; and

a wireless controller responsive to sensing a control signal on the second wireless communication channel to negotiate parameters for a future data exchange session including a data request, the wireless controller further response to sensing a data signal on the first wireless communication channel to establish the data exchange session and to perform the data exchange of the data request.

2. The portable wireless device of claim 1, further comprising a session prediction module containing diversity parameters for a wireless network, the wireless controller accessing the diversity parameters to optimize the wireless communication channel.

3. The portable wireless device of claim 2, further comprising a location engine for determining a present location and vector to predict proximity to the wireless network.

4. The portable wireless device of claim 3, wherein the location engine comprises a global positioning system module.

5. The portable wireless device of claim 3, further comprising a roadmap database to predict a route of travel.

6. The portable wireless device of claim 3, further comprising a digital terrain map to predict proximity as a function of effective range.

7. The portable wireless device of claim 1, wherein a selected one of the first and second communication channel comprises a radio modality selected from a group consisting of an IEEE 802.11 digital communication channel, an IEEE 802.16 WiMAX digital communication channel, a Bluetooth personal access network channel, a digital cellular telephony systems, and ultra-wideband (UWB).

8. The portable wireless device of claim 1, wherein a host network is communication with a first infrastructure wireless device, a second infrastructure wireless device along a route of travel of the portable wireless device, and a source of content associated with the data request, the controller of the portable wireless device requesting a data session along a course of travel from second infrastructure device of the host network and receives in turn parameters for the future data exchange session with the first infrastructure wireless device.

9. The portable wireless device of claim 1, further comprising antenna diversity selector for increasing data exchanged during the data session.

10. The portable wireless device of claim 1, further comprising a cognitive radio scanner, the controller further negotiating parameters for a sensed available channel to the second wireless communication channel.

11. The portable wireless device of claim 1, further comprising a coding module having a plurality of communication parameters selectable to predictively extend an effective reception range of the wireless portable device.

12. The portable wireless device of claim 11, wherein the coding module comprises a forward error coding module and a modulation coding module.

13. The portable wireless device of claim 11, further comprising a directional antenna having antenna gain oriented toward a direction of travel of the portable wireless device.

14. The portable wireless device of claim 1, further comprising a rule-based component for optimizing the data exchange session.

15. The portable wireless device of claim 1, further comprising an artificial intelligence component for optimizing the data exchange session.

16. A method for short duration digital data exchange with another wireless device, comprising:

negotiating parameters via a wireless control channel for a future wideband data exchange session on a wireless data channel;

requesting data to be exchanged during the data exchange session; and

establishing and performing the data exchange session in response to coming within reception range suitable for wideband data exchange.

17. The method of claim 16, further comprising:

predicting a route of travel;

determining a network device for wideband data exchange that will be within range at a future time based upon the route of travel; and

negotiating parameters via the wireless control channel for use of a wireless data channel with the network device in advance of being within range of the wireless data channel.

18. The method of claim 16, further comprising performing diversity optimizing of the data exchange session based upon historical data associated with a network device.

19. The method of claim 16, further comprising performing diversity optimizing of the data exchange session based upon parameters provided over the wireless control channel.

20. A computer-implemented for short duration digital data exchange with another wireless device system, comprising:

means for negotiating parameters via a wireless control channel for a future wideband data exchange session on a wireless data channel;

means for requesting data to be exchanged during the data exchange session; and

means establishing and performing the data exchange session in response to coming within reception range suitable for wideband digital data exchange.