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Communication system with detection of extra-system interference

An interference detection and super-system technology, which is applied in the communication between multiple stations, wireless communication, transmission system, etc., can solve the problem that the occurrence rate of false alarms is small, the detection and distinction are not perfect, and there is no provision for distinguishing between interference and super-system in the system. System interference and other issues

Inactive Publication Date: 2005-01-05
MOTOROLA SOLUTIONS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Therefore, it is necessary to be able to detect and differentiate between intra-system and supra-system disturbances; however, detection and differentiation are not perfect and the incidence of false alarms needs to be minimized
current ETSI specifications do not provide suitable techniques for differentiating intra-system interference from supra-system interference

Method used

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  • Communication system with detection of extra-system interference
  • Communication system with detection of extra-system interference
  • Communication system with detection of extra-system interference

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] first reference figure 1 , it can be seen that as shown in 1 and 2, the HiperLAN / 2 frequency range allocated by the European Postal and Telecommunications Management Conference is shared with the radar part. The wireless positioning frequency is within the range from 5250 to 5350MHz and from 5650 to 5850MHz. Maritime and other Wireless navigation is in the range from 5460 to 5650MHz, and weather radar is in the entire frequency band from 5250 to 5850MHz, as shown in 3.

[0021] radar letter

number type

Working frequency

(MHz)

bandwidth

(MHz)

burst length

(ms) / each burst

Number of pulses sent

sudden

interval

(Second)

pulse

width

(μs)

PRF

(pps)

between pulses

interval

(m-second)

Antenna beamwidth /

scan rate

(° / sec)

Basic test

test signal

＞5250

14

26 / 18

10

1

700

1.43

- / 36

weather ...

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Abstract

A method of communication between two or more terminals (6, 7) with detection of interference, especially in a HiperLAN / 2 system, comprising transmitting data between the terminals (6, 7) in electromagnetic signals of at least a first duration, the electromagnetic signals comprising one or more carrier frequencies within one or more ranges (1, 2) for which extra-system interference, especially with radar signals, is possible, at least one of the terminals (6, 7) being responsive to received signal strengths corresponding to intra-system interference (4, 17, 18). Detection of extra-system interference (5, 16) comprises at least one of the terminals (6, 7) responding selectively to received signal strengths that exceed a threshold level (19) for a second duration that is shorter than the first duration.

Description

technical field [0001] The invention relates to a method and a device for communication between terminals in combination with extra-system interference detection, comprising sending data between said terminals in electromagnetic signals containing signal bursts. Background technique [0002] The invention is particularly applicable to wireless communications in frequency ranges where interference between communication and radar signals is likely to occur; however, it should be understood that the invention is also applicable to other situations. [0003] Radar interference is a particular concern for communications according to the "HiperLAN" standard of the European Telecommunications Standards Institute ("ETSI"), abbreviated as standard TR 101 683 V1.1.1 (2000-02). [0004] The growing demand for "anywhere, anytime" communications and the combination of voice, video, and data communications creates a need for broadband wireless networks. ETSI has created the Broadband Rad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/10H04B7/26H04B17/00H04L12/28H04L27/26H04W16/14H04W72/54
CPCH04W72/08H04L27/2601H04W16/14H04B1/1027H04W72/54H04B17/00
Inventor 戴维·阿尔弗雷德·维吉耶纪尧姆·马克·阿诺代塞巴斯蒂安·塞默恩斯
Owner MOTOROLA SOLUTIONS INC
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