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A green mobile communication jamming device and jamming method thereof

A mobile communication and interference device technology, applied in the field of communication, can solve problems such as electromagnetic wave pollution, complex space signals, and the inability of mobile phones to realize communication functions, and achieve the effect of preventing cheating in exams and leaking secrets

Active Publication Date: 2017-12-01
CHINA ELECTRONIS TECH INSTR CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main features of these two kinds of jammers are that they will emit one or more interference signals, drowning the receiving signals of all mobile phones in the coverage area, blocking all connections between the mobile phone and the outside world, and making the mobile phone unable to realize the communication function.
It makes the original space signal more complicated and brings electromagnetic wave pollution to our living environment

Method used

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  • A green mobile communication jamming device and jamming method thereof
  • A green mobile communication jamming device and jamming method thereof

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Embodiment Construction

[0046] combined with Figures 1 to 2 The specific embodiment of the present invention is described further:

[0047] A device for implementing a green mobile communication interference by adding a refusal to establish service signaling on the BCH channel of an existing base station, including a frequency conversion receiving unit, an anti-aliasing filter unit, an A / D acquisition unit, a digital demodulation unit, and a channel decoding unit unit, BCH analysis unit, generating refusal to establish service message unit, BCH adding signaling unit, encoding unit, digital modulation unit, shaping filter unit, D / A conversion unit, IQ modulation unit, variable filter unit, gain control unit.

[0048] The device receives space base station signals and analyzes the BCH channel of the base station through the above-mentioned frequency conversion receiving unit, anti-aliasing filter unit, A / D acquisition unit, digital demodulation unit, channel decoding unit, and BCH analysis unit, and t...

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Abstract

The invention discloses a green mobile communication interference device and method. The method comprises the following steps: receiving a space base station signal, and resolving a BCH (Broadcast Channel) of a base station through a frequency conversion receiving unit, an anti-aliasing filtering unit, an A / D acquisition unit, a digital demodulation unit, a channel decoding unit and a BCH analysis unit; generating a business establishment rejection message through a business establishment rejection message generation unit; attaching the business establishment rejection message generated by the business establishment rejection message generation unit to the BCH through a BCH signaling addition unit; and transmitting a base station signal carrying the business establishment rejection message of the BCH through an encoding unit, a digital modulation unit, a shape filtering unit, a D / A conversion unit, an IQ modulation unit, a variable filtering unit and a gain control unit. According to the device and the method, new signaling is added on the BCH of the existing space base station signal, so that green mobile communication interference is realized.

Description

technical field [0001] The invention relates to the communication field, in particular to a green mobile communication interference device and an interference method thereof. Background technique [0002] With the increasing awareness of confidentiality, it is a relatively common phenomenon that all kinds of conferences and examinations use full-band jammers to prevent mobile phone leaks. There are currently two technical solutions for the jammer. One is to scan from the low-end frequency to the high-end at a certain speed during the work process. This scanning speed can form garbled interference in the received message signal of the mobile phone, and the mobile phone cannot detect it. The normal data sent from the base station prevents the mobile phone from establishing a connection with the base station. The other is to use broadband AWGN noise or modulated signals for targeted interference against the standard and working frequency bands currently used by mobile phones. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/10H04K3/00
CPCH04B1/10H04K3/60
Inventor 凌云志张煜王嘉嘉
Owner CHINA ELECTRONIS TECH INSTR CO LTD
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