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Configurable radar detection and avoidance system for wireless OFDM tranceivers

A technology of radar detection and radar, applied in radio wave measurement system, transmission system, wireless communication, etc., can solve problems such as unable to filter method or coordinate packet processor and radar module detection, unable to detect hidden radar, etc.

Inactive Publication Date: 2009-07-01
LINK TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this practical case, stealthy radars may not be detected using traditional methods because of the OFDM signal
Unfortunately, traditional methods cannot apply various filtering methods or coordinate packet processors and radar modules for detection

Method used

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  • Configurable radar detection and avoidance system for wireless OFDM tranceivers
  • Configurable radar detection and avoidance system for wireless OFDM tranceivers
  • Configurable radar detection and avoidance system for wireless OFDM tranceivers

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Embodiment Construction

[0031] The present invention relates to radar detection and avoidance methods for wireless devices including transceivers.

[0032] The representations described below are intended to enable those skilled in the art to which the present invention pertains to understand the contents and implement them accordingly. Various modifications of the preferred embodiments and the general principles and features described herein will be apparent to those skilled in the art. Therefore, the present invention should not be limited to the illustrated embodiments, but should be given the broadest scope consistent with the above-mentioned principles and features.

[0033] The present invention may include any combination of software, firmware, code, program product, custom code, machine instruction, description file, configuration combination, application of existing software, application data system in one or more embodiments, individually or collectively etc., but not limited to the above....

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PUM

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Abstract

The present invention relates generally to wireless transceivers, and more particularly but not exclusively to radar detection and avoidance methodologies for wireless devices including transceivers. In one or more implementations, a method for detecting radar operating in the unlicensed 5.25-5.35 and 5.47-10.725 GHz radio bands, using wireless devices, such as WiFi AP, are provided. A WiFi AP is used to automatically detect the presence of radar on all channels in these bands, alert all of its clients, and move to another channel that is known to be devoid of radar using one or more implementations.

Description

technical field [0001] The present invention relates to wireless transceivers, and more particularly, but not limited to, radar detection and avoidance methods for wireless devices incorporating transceivers. Background technique [0002] Wireless devices operating in the 5.25-5.35 GHz and 5.47-5.752 GHz radio bands require the ability to detect the presence of radar in various terrain conditions. [0003] For example, the European Union took the lead in harmonizing radio standards by providing its reference dynamic frequency selection (DFS) for devices operating in the 5150-5350 MHz and 5470-5725 MHz bands (EN 301 893 V1.2.3 standard). This EU standard specifies the types of waveforms that a system should detect and defines threshold conditions and timing requirements when operating in the 5250-5350MHz and 5470-5725MHz bands. After that, the US Federal Communications Commission issued a memorandum numbered 03-287 (Docket No. 03-287), which revised Part 2 and Part 15 (parts...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/40H04B17/00
CPCH04W16/14G01S7/021H04K3/226H04K2203/18H04K3/822
Inventor 托马斯·E·佩尔童健证基兰
Owner LINK TECH INC