Method and apparatus for dynamic channel selection device

• US 9,924,518 B2
• Filed: 04/10/2017
• Issued: 03/20/2018
• Est. Priority Date: 08/10/2015
• Status: Active Grant

• Current Assignee: Chengdu Sk Spruce Technologies Co., Ltd.
• Original Assignee: Network Performance Research Group LLC
• Inventors: Yi, Seung Baek, Tsai, Kun Ting, Chen, Yung-Jui
• Primary Examiner(s): Pezzlo, John
• Application Number:
  US15/483,406
• Publication Number:
  US 20170273084A1
• Time in Patent Office: 344 Days
• Field of Search: 370252, 370329, 370430
• CPC Class Codes: H04L 5/0005 Time-frequency
• CPC Class Codes: H04L 5/0062 Avoidance of ingress interference, e.g. ham radio channels
• CPC Class Codes: H04W 16/10 Dynamic resource partitioning
• 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 for a dynamic frequency selection (“DFS”) master device that can facilitate DFS capabilities for one or more legacy access points that do not have DFS capabilities on their own. The DFS master device can be a device communicably coupled to the access point via a universal serial bus (USB) connection or over Ethernet. In some embodiments, the DFS master device can provide DFS capabilities for a plurality of access points on a network. In other embodiments, the DFS master device can be a separate device that is embeddable on the legacy access point device.

Claims

1. A dynamic frequency selection (DFS) master device, comprising:

a memory that stores computer-executable instructions; and

a processor that executes the computer-executable instructions to perform operations, comprising;

generating first spectral information associated with a plurality of 5 GHz communication channels based on scanning for a radar signal on the plurality of 5 Ghz communication channels;

transmitting the first spectral information to a cloud intelligence device;

receiving, from the cloud intelligence device, integrated spectral information comprising the first spectral information and second spectral information associated with the 5 Ghz communications channels, the second spectral information received by the cloud intelligence device from another dynamic frequency selection master device;

selecting a 5 Ghz communication channel from the plurality of 5 Ghz communication channels based on the integrated spectral information; and

transmitting an instruction to an access point device communicably coupled to the DFS master device to operate a network on the 5 Ghz communication channel.

2. The DFS master device of claim 1, wherein the DFS master device is communicably coupled to the access point device via a universal serial bus port on the access point device.

3. The DFS master device of claim 1, wherein the DFS master device is an embedded device in the access point device.

4. The DFS master device of claim 1, wherein the DFS master device is communicably coupled to the access point device via a wireless connection.

5. The DFS master device of claim 1, wherein the DFS master device is communicably coupled to the access point device via an ethernet connection.

6. The DFS master device of claim 1, wherein the operations further comprise:

selecting the 5 Ghz communication channel based on non-spectral information that includes regulatory information, geographical information, or oceanic and atmospheric information.

7. The DFS master device of claim 1, wherein the operations further comprise:

transmitting a beacon signal in channels of the plurality of 5 Ghz communication channels in which service monitoring is being performed.

8. The DFS master device of claim 1, wherein the DFS master device is detachable from the access point device.

9. The DFS master device of claim 1, wherein the DFS master device is communicably coupled to a plurality of access point devices.

10. The DFS master device of claim 1, wherein the transmitting the first spectral information to the cloud intelligence device and the receiving the integrated spectral information are via the access point device.

11. A DFS master device, comprising:

a radar detector that scans for a radar signal on a plurality of 5 Ghz communication channels;

a scan and signaling module that generates first spectral information based on the radar detector scanning;

a cloud agent that transmits the first spectral information to a cloud intelligence device and receives integrated spectral information from the cloud intelligence device, the integrated spectral information comprising the first spectral information and second spectral information associated with the 5 Ghz communications channels, the second spectral information received by the cloud intelligence device from another dynamic frequency selection master device;

a processor that selects a 5 Ghz communication channel from the plurality of 5 Ghz communication channels based on the integrated spectral information; and

the processor transmits an instruction to an access point device communicably coupled to the DFS master device to park a network on the 5 Ghz communication channel.

12. The DFS master device of claim 11, further comprising

a beacon generator that transmits a beacon signal in channels of the plurality of 5 Ghz communication channels in which in service monitoring is being performed.

13. The DFS master device of claim 11, transmitting the instruction to the access point device via an ethernet connection.

14. The DFS master device of claim 11, transmitting the instruction to the access point device via a USB connection.

15. The DFS master device of claim 11, transmitting the instruction to the access point device via a peripheral component interconnect bus.

16. The DFS master device of claim 11, wherein the processor selects the 5 Ghz communication channel based on non-spectral information that includes regulatory information, geographical information, or oceanic and atmospheric information.

17. The DFS master device of claim 11, wherein the DFS master device is detachable from the access point device.

18. The DFS master device of claim 11, wherein the DFS master device is communicably coupled to a plurality of access point devices.

19. The DFS master device of claim 11, wherein the signaling module transmits the first spectral information to the cloud intelligence device and then receives the integrated spectral information via the access point device.

20. A method to select a communication channel by a DFS master device, comprising:

generating, by a radar detector, first spectral information associated with a plurality of 5 GHz communication channels based on scanning for a radar signal on the plurality of 5 Ghz communication channels;

transmitting, by a signaling module, the first spectral information to a cloud intelligence device;

receiving, by the signaling module, from the cloud intelligence device, integrated spectral information comprising the first spectral information and second spectral information associated with the 5 Ghz communications channels, the second spectral information received by the cloud intelligence device from another dynamic frequency selection master device;

selecting, by a processor, a 5 Ghz communication channel from the plurality of 5 Ghz communication channels based on the integrated spectral information; and

transmitting, by the processor, an instruction to an access point device communicably coupled to the DFS master device to initiate network operations on the 5 Ghz communication channel.