System and Method To Avoid Interference With Radar Systems

• US 20130194944A1
• Filed: 07/25/2012
• Published: 08/01/2013
• Est. Priority Date: 01/27/2012
• Status: Active Grant

• Current Assignee: AirTies Co.
• Original Assignee: Airties Kablosuz Iletisim San VE DIS TIC As
• Inventors: Birlik, Firat, Soyak, Eren, Taskin, Metin Ismail
• Granted Patent: US 9,119,079 B2
• Time in Patent Office: Days
• US Class Current: 370/252
• CPC Class Codes: H04K 2203/18 for wireless local area networks or WLAN
• CPC Class Codes: H04K 3/226 Selection of non-jammed channel for communication spectrum sharing arrangements H04W16/14; selection of wireless resources by user or terminal H04W72/02
• CPC Class Codes: H04K 3/822 by detecting the presence of a surveillance, interception or detection
• CPC Class Codes: H04L 12/413 with random access, e.g. carrier-sense multiple-access with collision detection [CSMA-CD]
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 72/54 based on quality criteria
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]

Abstract

A gateway device includes an input port for receiving Internet signals, a single RF module, a memory and a processor. The memory has computer executable instructions stored therein, wherein execution of the computer executable instructions by the processor causes the processor to retrieve a channel monitoring time from the memory. The execution of the computer executable instructions further causes the processor to monitor selected channels and develop and store in the memory a value of a confidence level for each channel. Each channel is monitored for a predetermined period of time between transmissions of data and the confidence level associated with a channel indicates the probability that frequencies associated with such channel are used by a radar system.

Claims

1. A wireless network device comprising:

an input port adapted to receive Internet signals;

a single RF module adapted to supply wireless signals to a network;

a memory, wherein the memory has computer executable instructions stored therein; and

a processor, wherein execution of the computer executable instructions by the processor causes the processor to;

retrieve a channel monitoring time from the memory,

determine if the single RF module is idle,

determine a period of time the single RF module is idle,

determine a quantity of 5 GHz channels that may be monitored in the period of time,

randomly select channels to monitor, wherein the quantity of selected channels does not exceed the quantity of 5 GHz channels that may he monitored,

monitor the selected channels, wherein each channel is monitored for a predetermined period of time between transmissions of data,

develop a value of a confidence level for each channel, wherein the confidence level associated with a channel indicates the probability that frequencies associated with such channel are used by a radar system, and

store the developed values of confidence levels in the memory.

2. The wireless network device of claim 1, wherein the wireless network device is an access point.

3. The wireless network device of claim 1, wherein the wireless network device is a gateway.

4. The wireless network device of claim 1, wherein the wireless network device operates in a wireless network.

5. The wireless network device of claim 4, wherein the wireless network includes a further wireless network device operating therein.

6. The wireless network device of claim 5, wherein the processor of the wireless network device and a processor of the further wireless network device simultaneously monitor an identical channel.

7. The wireless network device of claim 5, wherein the processor of the wireless network device and a processor of the further wireless network device simultaneously monitor a first and a second channel, wherein the first and the second channel are different.

8. The wireless network device of claim 5, wherein the processor of the further wireless network device monitors a channel and transmits a result of the monitoring to the wireless network device.

9. The wireless network device of claim 1, wherein the wireless network device is adapted to operate in an 802.11X compliant network.