Communications system for exchanging spectrum sensing measurements through a drop box and method of using same

• US 8,699,360 B2
• Filed: 03/31/2008
• Issued: 04/15/2014
• Est. Priority Date: 03/31/2008
• Status: Active Grant

• Current Assignee: Motorola Solutions, Inc.
• Original Assignee: Motorola Solutions, Inc.
• Inventors: Kuffner, Stephen L., Ayoub, Ramy S., Belcea, John M., Buchwald, Gregory J., Dann, Lynn D., Derango, Mario F., Ecklund, Lawrence M., Ekl, Randy L., Johnson, Michael S., Silk, S. David
• Primary Examiner(s): Rinehart, Mark
• Assistant Examiner(s): BROCKMAN, ANGEL T
• Application Number:
  US12/059,851
• Publication Number:
  US 20090245119A1
• Time in Patent Office: 2,206 Days
• Field of Search: 370/252, 370/352, 370/342
• US Class Current: 370/252
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 48/10 using broadcasted information
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks

Abstract

A communications system and method for exchanging spectrum usage information through a drop box (100) includes one or more central stations (101) that defines a region of operation. A central drop box (102) is associated with the central station (101) for providing a database of spectrum usage information. Stations (103, 105, 107) using the communications system may submit information regarding spectrum usage to the central drop box (102) that affects the region of operation (109, 115) for providing the most efficient and non-interfering uses of the frequency spectrum.

Claims

1. A communications system for exchanging spectrum usage information comprising:

a plurality of stations;

at least one central station that defines a region of operation;

a central drop box associated with the at least one central station for providing a database of spectrum usage information representing spectral occupancy of multiple channels, frequencies, and network; and

a remote drop box, wherein at least one station of the plurality of stations become remote drop box in response to submitting a request to the at least one central station to become a remote drop box;

wherein the plurality of stations submits spectrum usage information representing spectral occupancy of multiple channels, frequencies, and network to at least the central drop box or the remote drop box and further wherein the stations other than remote drop boxes use the at least one central station to submit a request for submitting the spectrum usage information representing spectral occupancy of multiple channels, frequencies, and network to the remote drop box.

2. A communications system as in claim 1, wherein the central drop box includes a message board for posting requests.

3. A communications system as in claim 1, wherein stations using the at least one central station submit a request for pattern analysis of sensed data, the sensed data being posted to the remote drop box.

4. A communications system as in claim 1, wherein stations using the at least one central station submit a request for posting of MAC/PHY information, the MAC/PHY information being posted to the remote drop box.

5. A communications system as in claim 1, wherein stations using the at least one central station submit a request for posting its own usage statistical information to the remote drop box.

6. A communications system as in claim 1, wherein stations using the at least one central station submit a request to submit sensing conclusions, the remote drop box corroborating the sensing conclusions.

7. A cognitive radio (CR) network for exchanging spectrum usage information through a data base comprising:

at least one central station that defines a region of operation;

a central drop box associated with the at least one central station for providing the database of spectrum usage information representing spectral occupancy of multiple channels, frequencies, and network and a bulletin board for posting message information; and

wherein stations using the CR network utilize spectrum usage information representing spectral occupancy of multiple channels, frequencies, and network in the database for most effectively using frequency spectrum in the region of operation;

further wherein the stations become remote drop boxes in response to submitting a request to the at least one central station to become a remote drop box, wherein stations other than remote drop boxes use the at least one central station to submit a request for submitting the spectrum usage information representing spectral occupancy of multiple channels, frequencies, and network to the remote drop box.

8. A CR network as in claim 7, wherein stations using the at least one central station submit a request for pattern analysis of sensed data, the pattern analysis being performed at the remote drop box.

9. A CR network as in claim 7, wherein stations using the at least one central station submit a request for posting of MAC/PHY information, the MAC/PHY information being posted at the remote drop box.

10. A CR network as in claim 7, wherein stations using the at least one central station submit a request for posting its own usage statistical information, the statistical information being posted at the remote drop box.

11. A CR network as in claim 7, wherein stations using the at least one central station submit a request for permission to submit sensing conclusions, the sensing conclusions being posted to the remote drop box.

12. A CR network as in claim 7, wherein stations using the at least one central station submit a request for permission to submit sensing data, the sensed data being posted to the remote drop box.

13. A method for exchanging spectrum usage information through a central drop box in a communications system using the central drop box comprising:

defining a region of operation for at least one central station;

associating the central drop box with the at least one central station for providing a database of spectrum usage information representing spectral occupancy of multiple channels, frequencies, and network;

submitting spectrum usage information representing spectral occupancy of multiple channels, frequencies, and network by stations using the communications system regarding spectrum sensing observations of other stations to the central drop box that affects the region of operation;

submitting a request by the stations to the at least one central station to become remote drop boxes and the stations becoming remote drop boxes in response to the submitted request, wherein stations other than remote drop boxes use the at least one central station to submit a request for the submitting spectrum usage information representing spectral occupancy of multiple channels, frequencies, and network to the remote drop box.

14. A method for exchanging spectrum sensing measurement data as in claim 13, further including the step of:

submitting a request by a station using the at least one central station for pattern analysis of sensed data, the sensed data being posted to the remote drop box and the pattern analysis being performed at the remote drop box.

15. A method for exchanging spectrum sensing measurement data as in claim 13, further including the step of:

submitting a request by a station using the at least one central station to post its own usage statistical information at the remote drop box.

16. A method for exchanging spectrum sensing measurement data as in claim 13, further including the step of:

submitting a request by a station using the at least one central station to post its MAC/PHY information at the remote drop box.

17. A method for exchanging spectrum sensing measurement data as in claim 13, further including the step of:

submitting a request by a station using the at least one central station to submit sensing conclusions at the remote drop box.

18. The method of claim 13, further including the step of:

authenticating the stations submitting information to ensure the veracity of the database.

19. The method of claim 18, wherein the step of authenticating includes:

receiving confirmation, by other networks, of the submitted information.

20. The method of claim 13, further including the step of:

barring a station'"'"'s MAC address when a false request is submitted.

21. A communications system for exchanging spectrum usage information comprising:

a first drop box centralized at least one central station, the at least one central station defining a region of operation;

a remote station that becomes a second drop box in response to submitting a request to the at least one central station to become a drop box; and

stations that submit spectrum usage information to the drop box using the communications system;

wherein the drop box provides a database of spectrum usage information which enables radios seeking to join the communication system to join with efficient and non-interfering use of the frequency spectrum wherein the drop box is a first drop box or a second drop box.

22. A communications system as in claim 21, wherein stations using the at least one central station submit a request for pattern analysis of sensed data, the sensed data being posted to the drop box.

23. A communications system as in claim 21, wherein stations using the at least one central station submit a request for posting its own usage statistical information to the drop box.

24. A communications system as in claim 21, wherein stations using the at least one central station submit a request to submit sensing conclusions, the drop box corroborating the sensing conclusions.

25. A communications system as in claim 21, wherein stations using the at least one central station submit a request for permission to submit sensing data, the sensed data being posted to the drop box.