White space utilization

• US 9,681,367 B2
• Filed: 11/24/2015
• Issued: 06/13/2017
• Est. Priority Date: 02/22/2013
• Status: Active Grant

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Inventors: Garnett, Paul W., Mitchell, Paul W. A., Hassan, Amer A.
• Primary Examiner(s): Figueroa, Marisol
• Application Number:
  US14/951,426
• Publication Number:
  US 20160081014A1
• Time in Patent Office: 567 Days
• Field of Search: 455453
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information
• CPC Class Codes: H04W 64/003 locating network equipment
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/542 using measured or perceived quality

Abstract

The concepts relate to radio white space utilization. One example can obtain information about a location of a device. The example can access a white space database to obtain radio white space frequencies relative to the location. This example can also perform active scanning of at least some of the radio white space frequencies at the location and not perform active scanning on allocated frequencies.

Claims

1. A system, comprising:

a white space data store;

a processing device; and

a storage device storing computer-executable instructions which, when executed by the processing device, cause the processing device to;

obtain information about a location of a mobile device;

determine a current operating capacity of at least one cell tower proximate the mobile device;

access the white space data store to obtain a list of radio white space frequencies relative to the location;

send the obtained list of the radio white space frequencies to the mobile device over a cellular network; and

,

based at least in part on the current operating capacity of the at least one cell tower, instruct the mobile device to perform active scanning of at least some of the radio white space frequencies from the list to discover a wireless access point at the location, the wireless access point providing a radio white space network on an individual radio white space frequency.

2. The system of claim 1, wherein the computer-executable instructions further cause the processing device to populate the white space data store with information from a regulatory database that maps locations to radio white space frequencies.

3. The system of claim 2, wherein the computer-executable instructions further cause the processing device to periodically synchronize the white space data store with the regulatory database.

4. The system of claim 1, wherein the system relates to a cell service provider.

5. The system of claim 4, wherein the computer-executable instructions further cause the processing device to populate the white space data store with information from a regulatory database relating to locations for which the cell service provider provides service.

6. The system of claim 1, wherein the computer-executable instructions further cause the processing device to instruct the mobile device to switch at least some data communication to the radio white space network from the cellular network.

7. The system of claim 1, wherein the computer-executable instructions further cause the processing device to instruct the mobile device to perform active scanning of a particular radio white space frequency from the list before performing active scanning of other radio white space frequencies from the list.

8. The system of claim 1, wherein the computer-executable instructions further cause the processing device to obtain interference data from the mobile device for the radio white space network and add the interference data to the white space data store.

9. A system comprising:

a white space data store;

a processing device; and

a communication component configured to execute on the processing device, the communication component being configured to;

obtain information about a location of a mobile device;

access the white space data store to obtain a list of radio white space frequencies for the location of the mobile device;

determine that a cell service provider is at or near capacity; and

responsive to the cell service provider being at or near capacity, cause the mobile device to scan multiple radio white space frequencies from the list to identify an individual white space frequency for data communication instead of using the cell service provider for the data communication.

10. The system of claim 9, the communication component being configured to:

determine that the cell service provider is at or near capacity based at least on a cell tower that is proximate the location of the mobile device.

11. The system of claim 10, further comprising the cell tower.

12. The system of claim 9, wherein the communication component is configured to:

cause the mobile device to perform active scanning of the multiple radio white space frequencies from the list.

13. A method comprising:

obtaining a location of a mobile device;

making a determination that at least one cell tower proximate the mobile device is currently operating at or near capacity;

obtaining a list of radio white space frequencies available at the location of the mobile device;

sending the obtained list of the radio white space frequencies to the mobile device; and

based at least in part on the determination that the at least one cell tower proximate the mobile device is currently operating at or near capacity, instructing the mobile device to perform active scanning of at least some of the radio white space frequencies from the list to discover a wireless access point at the location.

14. The method of claim 13, the obtaining the location comprising receiving the location from the mobile device.

15. The method of claim 13, the sending and instructing being performed using cellular data communication.

16. The method of claim 15, performed by a cellular service provider.

17. The method of claim 16, further comprising;

populating a white space data store maintained by the cellular service provider with white space authorizations provided by a regulatory database; and

obtaining the list of radio white space frequencies from the white space data store.

18. The method of claim 17, the populating being performed for areas where the cellular service provider provides service but not for other areas where the cellular service provider does not provide service.

19. The method of claim 17, further comprising:

obtaining feedback indicating interference on different white space frequencies;

incorporating the feedback into the white space data store; and

recommending specific white space frequencies to the mobile device based at least on corresponding levels of interference of certain white space frequencies that are available at the location of the mobile device.

20. The method of claim 19, further comprising:

receiving further feedback relating to an individual recommended white space frequency used by the mobile device; and

incorporating the further feedback into the white space data store.