Method and apparatus for directed adaptive control of dynamic channel selection in wireless networks

• US 9,439,197 B1
• Filed: 03/30/2016
• Issued: 09/06/2016
• Est. Priority Date: 08/10/2015
• Status: Expired due to Fees

• Current Assignee: Chengdu Sk Spruce Technologies Co., Ltd.
• Original Assignee: Planetary Network Technologies, Inc.
• Inventors: Yi, Seung Baek, Kurniawan, Erick, Tsai, Kun Ting, Ngo, Terry F K
• Primary Examiner(s): Pezzlo, John
• Application Number:
  US15/085,573
• Time in Patent Office: 160 Days
• Field of Search: 370/252, 370/329, 370/430
• US Class Current: 1/1
• CPC Class Codes: H04L 5/0062 Avoidance of ingress interference, e.g. ham radio channels
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA

Abstract

The present invention relates to wireless networks and more specifically to systems and methods for selecting available channels free of radar signals from a plurality of radio frequency channels. In one embodiment, the present invention provides a standalone multi-channel DFS master device and a cloud intelligence device. The standalone multi-channel DFS master device generates spectral information associated with a plurality of communication channels for a device in communication with the standalone multi-channel DFS master device. The cloud intelligence device receives the spectral information via a network device, integrates the spectral information with other spectral information to generate integrated spectral information, and determines a communication channel for the device that is selected from the plurality of communication channels based at least on the integrated spectral information.

Claims

1. A system, comprising:

a standalone multi-channel dynamic frequency selection (DFS) master device configured to generate spectral information associated with a plurality of 5 GHz communication channels for a device in communication with the standalone multi-channel DFS master device; and

a cloud intelligence device configured to receive the spectral information via a network device, integrate the spectral information with other spectral information to generate integrated spectral information, and determine a communication channel for the device that is selected from the plurality of 5 GHz communication channels based at least on the integrated spectral information,

wherein the standalone multi-channel DFS master device is configured to transmit a whitelist of each of the plurality of 5 GHz communication channels that does not contain a radar signal to the cloud intelligence device via the network device.

2. The system of claim 1, wherein the cloud intelligence device is further configured to determine the communication channel based on regulation information stored in at least one database.

3. The system of claim 1, wherein the cloud intelligence device is further configured to determine the communication channel based on non-spectral information that includes regulatory information, geographical information, or oceanic and atmospheric information.

4. The system of claim 1, wherein the standalone multi-channel DFS master device is configured to switch a 5 GHz transceiver of the standalone multi-channel DFS master device to a channel of the plurality of 5 GHz communication channels, cause a beacon generator of the standalone multi-channel DFS master device to generate a beacon in the channel of the plurality of 5 GHz communication channels, and cause a radar detector of the standalone multi-channel DFS master device to scan for the radar signal in the channel of the plurality of 5 GHz communication channels.

5. The system of claim 4, wherein the standalone multi-channel DFS master device is configured to transmit, to the cloud intelligence device, the spectral information comprising scan information associated with the scan for the radar signal in the channel of the plurality of 5 GHz communication channels.

6. The system of claim 1, wherein the standalone multi-channel DFS master device is configured to transmit a blacklist of each of the plurality of 5 GHz communication channels that contains the radar signal to the cloud intelligence device via the network device.

7. The system of claim 1, wherein the standalone multi-channel DFS master device is configured to transmit the spectral information to the cloud intelligence device via a wide area network or a set of DFS slave devices in communication with the standalone multi-channel DFS master device.

8. The system of claim 1, wherein the device is an access point device, a DFS slave device, a peer-to-peer group owner device, a mobile hotspot device or a radio access node device, and

wherein the standalone multi-channel DFS master device is configured to be in communication with the device via a local area network, a wide area network, an ad hoc network, a peer-to-peer network or a short range wireless network.

9. The system of claim 1, wherein the cloud intelligence device is further configured to enable the standalone multi-channel DFS master device to communicate with another standalone multi-channel DFS master device via a same network or a different network.

10. The system of claim 1, wherein the spectral information is location-tagged and time-stamped.

11. A method, comprising:

generating, using a multi-channel dynamic frequency selection (DFS) device, spectral information associated with a plurality of 5 GHz radio channels for a device in communication with the multi-channel DFS device;

transmitting, using the multi-channel DFS device, the spectral information to a cloud intelligence device via a wide area network, comprising transmitting a whitelist of each of the plurality of 5 GHz radio channels that does not contain a radar signal to the cloud intelligence device via the wide area network;

generating, using the cloud intelligence device, integrated spectral information by integrating the spectral information with other spectral information; and

determining, using the cloud intelligence device, a radio channel for the device from the plurality of 5 GHz radio channels based at least on the integrated spectral information.

12. The method of claim 11, wherein the generating the spectral information comprises:

switching a 5 GHz radio transceiver of the multi-channel DFS device to a channel of the plurality of 5 GHz radio channels;

generating a beacon in the channel of the plurality of 5 GHz radio channels; and

scanning for the radar signal in the channel of the plurality of 5 GHz radio channels.

13. The method of claim 12, wherein the transmitting the spectral information comprises transmitting scan information associated with the scanning for the radar signal in the channel of the plurality of 5 GHz radio channels.

14. The method of claim 11, wherein the transmitting the spectral information comprises transmitting a blacklist of each of the plurality of 5 GHz radio channels that contains the radar signal to the cloud intelligence device via the wide area network.

15. The method of claim 11, further comprising:

receiving, by the cloud intelligence device, regulation information stored in at least one database.

16. The method of claim 15, wherein the determining the radio channel comprises determining the radio channel based on the integrated spectral information and the regulation information.

17. A system, comprising:

a dynamic frequency selection (DFS) device configured to generate spectral information associated with a plurality of 5 GHz radio channels based on an analysis of the plurality of 5 GHz radio channels; and

a cloud intelligence device configured to receive the spectral information via a wide area network, integrate the spectral information with other spectral information to generate integrated spectral information, and determine a radio channel for a device, from the plurality of 5 GHz radio channels, based at least on the integrated spectral information, wherein the device is in communication with the DFS device via a wireless network, wherein the other spectral information is generated by at least one other DFS device configured to analyze the plurality of 5 GHz radio channels, and wherein the DFS device is configured to transmit a whitelist of each of the plurality of 5 GHz radio channels that does not contain a radar signal to the cloud intelligence device via the wide area network.

18. The system of claim 17, wherein the cloud intelligence device is further configured to determine the radio channel based on regulation information associated with the plurality of 5 GHz radio channels and stored in at least one database.

19. The system of claim 17, wherein the DFS device is configured to switch a 5 GHz transceiver of the DFS device to a channel of the plurality of 5 GHz radio channels, generate a beacon in the channel of the plurality of 5 GHz radio channels, and scan for the radar signal in the channel of the plurality of 5 GHz radio channels.

20. The system of claim 19, wherein the DFS device is configured to transmit, to the cloud intelligence device, the spectral information comprising scan information associated with the scan for the radar signal in the channel of the plurality of 5 GHz radio channels.

21. The system of claim 17, wherein the DFS device is configured to transmit a blacklist of each of the plurality of 5 GHz radio channels that contains the radar signal to the cloud intelligence device via the wide area network.

22. The system of claim 17, wherein the spectral information is location-tagged and time-stamped.