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Radar detection and/or protection in a wireless communication system operating in a spectrum shared with at least one radar system

A wireless communication system and radar detection technology, applied in wireless communication, radio wave reflection/re-radiation, interference to communication, etc., can solve problems such as the inability to process information used by radar, and achieve the effect of robust radar protection

Inactive Publication Date: 2017-12-01
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to national security concerns, the SAS may not be able to process information about radar use

Method used

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  • Radar detection and/or protection in a wireless communication system operating in a spectrum shared with at least one radar system
  • Radar detection and/or protection in a wireless communication system operating in a spectrum shared with at least one radar system
  • Radar detection and/or protection in a wireless communication system operating in a spectrum shared with at least one radar system

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Embodiment Construction

[0045] Throughout the drawings, the same reference numerals are used for similar or corresponding elements.

[0046] It might be useful to start with a brief overview of some problems with existing solutions.

[0047] Since 2004, technical specifications for Wi-Fi systems used in the 5GHz band were initially adopted by ETSI specifications (eg, EN 301-893v1.2.3) for weather radar stations in European time zones and subsequently for use with stricter and more A broadly requested U.S. defense radar that provides Dynamic Frequency Selection (DFS) functionality for radar protection.

[0048] A typical Wi-Fi implementation has functionality such as receiver hardware and / or software capable of detecting and measuring radar pulses and chirps (i.e., with a certain pulse width, power, and frequency indicated by the chip) scan signal), the software has a set of state machines that receive interrupts from the hardware and determine if enough pulses are detected (e.g., exceeding a power t...

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Abstract

There is provided a method and corresponding arrangement and units for radar detection in a wireless communication system operating in a spectrum shared with at least one radar system. The method basically comprises the steps of collecting (S1) measurement information related to radar sensing measurements by aggregating radar sensing measurements from multiple, geographically distributed radar sensing units forming a radar sensing network implemented in the wireless communication system, and processing (S2) the measurement information according to at least one radar sensing rule to generate a radar detection result. With this new and fundamental radar detection procedure in place, it may further be beneficial to take action(s) for radar protection and / or dynamic adjustment of radar detection functionalities.

Description

technical field [0001] The proposed technique relates generally to wireless communication systems and radar technology, and in particular to radar detection and / or protection in wireless communication systems operating in a frequency spectrum shared with at least one radar system. Background technique [0002] Currently, wireless communication systems typically operate on spectrum dedicated to each individual system (e.g. mobile networks in block-licensed IMT spectrum) or several similar systems on an equal access basis (e.g. Operates in a spectrum shared between Wifi and Bluetooth in the license-exempt RLAN / ISM spectrum). Other forms of sharing also exist within limited boundaries, eg, defined by static geographic exclusion zones. [0003] Currently, new forms of sharing are discussed, including spectrum sharing between a wireless communication system and one or more radar systems. For example, in the United States, the Federal Communications Commission (FCC) is planning ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/02H04W16/14G01S13/02H04W84/18
CPCH04K3/226H04W16/14H04K3/822H04K2203/16H04K2203/18G01S7/021
Inventor 肯内特·瓦尔斯泰特米卡埃尔·普吕茨
Owner TELEFON AB LM ERICSSON (PUBL)