System and method for managing radio access to spectrum and to a spectrum management system

• US 8,576,817 B2
• Filed: 04/08/2010
• Issued: 11/05/2013
• Est. Priority Date: 04/08/2010
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Spectrum Bridge, Inc.
• Inventors: Uppalapati, Sekhar V., Schmidt, Jeffrey C., Camchong, Mario, Stanforth, Peter
• Primary Examiner(s): LIU, JUNG
• Application Number:
  US12/756,581
• Publication Number:
  US 20110250915A1
• Time in Patent Office: 1,307 Days
• Field of Search: 370/203, 370204-215, 370229-240, 370310-337, 370338-350, 370351-394, 370/395.1, 370/395.3, 370/395.4, 370/395.41, 370/395.42, 370/395.5, 370/395.52, 370/395.53, 370412-421, 370431-457, 370458-463, 370464-497, 370498-522, 370523-520, 370521-529
• US Class Current: 370/338
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 48/12 using downlink control channel
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks
• CPC Class Codes: H04W 88/04 adapted for relaying to or from another terminal or user

Abstract

A communication system where radios without a normally available communication pathway to a spectrum management system (referred to as spoke radio devices) communicate with the spectrum management system by joining a network established by a hub radio device that has a prior registration with the spectrum management system. Once joined, the spoke may seek registration with the spectrum management system and, if appropriate, obtain a spectrum allocation from the spectrum management system. Also, once registered, spoke radio devices may form a network of their own.

Claims

1. A method of radio communications using a hub radio device that forms part of a communication system, the communication system having a spectrum management system that allocates spectrum to radio devices in the communication system, comprising the following steps carried out by the hub radio device:

registering with the spectrum management system and receiving a spectrum allocation for the hub radio device from the spectrum management system, the spectrum allocation for the hub radio device identifying available operating channels for the hub radio device;

forming a network on one of the operating channels identified in the spectrum allocation for the hub radio device;

broadcasting a beacon over an operating channel that is identified in the spectrum allocation for the hub radio device;

joining into the network a spoke radio device from which a join request is received; and

acting as a communication pathway for communication between the spoke radio device and the spectrum management system for the spoke radio device to register with the spectrum management system and to receive a spectrum allocation for the spoke radio device from the spectrum management system, the spectrum allocation for the spoke radio device identifying available operating channels for the spoke radio device and being a separate spectrum allocation than the spectrum allocation for the hub radio device; and

wherein the beacon contains data regarding the spectrum management system, the data distinguishing the spectrum management system from other spectrum management systems that provide spectrum allocations to radio devices.

2. The method of claim 1, wherein the operating channel on which the network is formed is selected by the hub radio device from plural channels in the spectrum allocation for the hub radio device.

3. The method of claim 2, wherein the selected operating channel is a whitespace channel and the spectrum allocation for the hub radio device is a channel map of available whitespace channels.

4. The method of claim 2, further comprising communicating the operating channel selection to the spectrum management system.

5. The method of claim 1, wherein the hub radio device is a fixed radio device or a mode II radio device.

6. The method of claim 1, further comprising the hub registering again with the spectrum management system if the registration of the hub expires.

7. The method of claim 1, wherein the joining includes receiving a join request from the spoke radio device and transmitting a join grant to the spoke radio device.

8. The method of claim 1, further comprising receiving a command from the spectrum management system to cease communication over the operating channel, discontinuing communication over the operating channel, and seeking a new spectrum allocation from the spectrum management system.

9. The method of claim 8, wherein the command is one of a channel revocation or a deregistration.

20. The method of claim 1, wherein communication between the hub radio device and the spectrum management system, including communication between the spoke radio device and the spectrum management system for which the hub radio devices acts as a communication pathway, is by way of a network access device that operatively connects the hub radio device to the Internet independent of the channels identified in the spectrum allocation for the hub radio device, the spectrum management system being accessible via the Internet.

21. The method of claim 1, wherein the hub radio device and the spoke radio device each are whitespace radio devices, the spoke radio device is without an available communication pathway to the spectrum management system other than via another whitespace device.

10. A method of radio communications using a spoke radio device that forms part of a communication system, the communication system having a spectrum management system that allocates spectrum to radio devices in the communication system, comprising the following steps carried out by the spoke radio device:

scanning for and receiving a beacon that is broadcast by a hub radio device, the hub radio device being registered with the spectrum management system and operating on a network formed by the hub radio device on a channel identified in a spectrum allocation provided to the hub radio device from the spectrum management system;

joining the network formed by the hub radio device; and

registering with the spectrum management system and receiving a spectrum allocation for the spoke radio device from the spectrum management system, messages to carry out the registering and receiving the spectrum allocation are transmitted via the hub radio device as a communication pathway for communication between the spoke radio device and the spectrum management system, and the spectrum allocation for the spoke radio device identifying available operating channels for the spoke radio device and being a separate spectrum allocation than the spectrum allocation for the hub radio device; and

wherein beacons are received from plural hub radio devices and each beacon contains data regarding a spectrum management system associated with the respective hub radio system, the data in each beacon distinguishing the respective spectrum management system from other spectrum management systems that provide spectrum allocations to radio devices; and

the method further comprising selecting a network of one hub radio device to loin from the plural hub radio systems according to a preferred one of the spectrum management systems.

11. The method of claim 10, further comprising the spoke radio device establishing a network separate from the network formed by the hub radio device, the network established by the spoke radio device on an operating channel that is identified in the spectrum allocation for the spoke radio device and conducting wireless communications over the network established by the spoke radio device with another radio device.

12. The method of claim 11, further comprising the spoke radio device receiving a command from the spectrum management system to cease communication over the operating channel, discontinuing communication over the operating channel, and seeking a new spectrum allocation from the spectrum management system.

13. The method of claim 12, wherein the command is one of a channel revocation or a deregistration.

14. The method of claim 12, further comprising the spoke radio device selecting the operating channel for the network established by the spoke radio device from plural channels identified in the spectrum allocation for the spoke radio device.

15. The method of claim 14, wherein the selected operating channel is a whitespace channel and the spectrum allocation is a channel map of available whitespace channels.

16. The method of claim 14, further comprising communicating the operating channel selection to the spectrum management system.

17. The method of claim 10, wherein the spoke radio device is a fixed radio device or a mode II radio device.

18. The method of claim 10, further comprising the spoke radio device registering again with the spectrum management system if the registration expires.

19. The method of claim 10, wherein the spoke radio system is a mode I radio device.

22. The method of claim 10, wherein communication between the hub radio device and the spectrum management system, including communication between the spoke radio device and the spectrum management system for which the hub radio devices acts as a communication pathway, is by way of a network access device that operatively connects the hub radio device to the Internet independent of the channels identified in the spectrum allocation for the hub radio device, the spectrum management system being accessible via the Internet.

23. The method of claim 10, wherein the hub radio device and the spoke radio device each are whitespace radio devices, the spoke radio device is without an available communication pathway to the spectrum management system other than via another whitespace device.