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Method for detecting and suppressing pseudo-base station

A detection method and technology for pseudo base stations, which are applied in the field of effective detection and suppression of pseudo base stations, can solve the problems of unrealistic communication protocols of GSM systems, and lack of effective technical means to contain attacks of pseudo base stations, and achieve considerable installation and management costs and hardware. Low cost, low interference effect

Inactive Publication Date: 2014-10-29
PEKING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] As mentioned above, although fake base stations seriously affect the information security of mobile networks, there is no effective technical means to contain the attacks of fake base stations, and it is not realistic to modify the communication protocol of the GSM system as a whole.

Method used

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  • Method for detecting and suppressing pseudo-base station
  • Method for detecting and suppressing pseudo-base station
  • Method for detecting and suppressing pseudo-base station

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Embodiment Construction

[0036] The false base station detection and suppression method of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein an attack suppression scheme based on location update request false signaling is adopted.

[0037] Such as figure 1 As shown, the present invention proposes to deploy static equipment at the center base station of the cell to discover and suppress pseudo base stations. The GSM system uses frequency separation between cells, and the carrier frequencies of different cells are orthogonal to each other. The pseudo base station system selects the carrier frequency point of the cell with weaker signal strength at the location as the working carrier frequency, configures higher transmission power according to the required coverage, and sets the location area code and cell code that cannot be scanned at the location to form a new CGI cell code, in order to make the user mistakenly think that it is moving to a ...

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Abstract

The invention discloses a method for detecting and suppressing a pseudo-base station. The method comprises the following steps of: 1) deploying static equipment on the selected base station, the cell global identifier CGI of each cell of the located base station being stored in the static equipment; 2) continuously monitoring the BCCHs of all the frequency points of the GSM of the located base station, reading the cell global identifier CGI of each frequency point, and comparing the cell global identifier CGI with the cell global identifier CGI of the adjacent cell by the static equipment; of a new cell global identifier CGI occurs, then judging that the pseudo-base station occurs, and recording the working frequency point corresponding to the new cell global identifier CGI; 3) simulating a plurality of user terminals and sending lots of channel allocation request pseudo-signallings to the RACH of the pseudo-base station by the static equipment; 4) after the static equipment does not monitor the information of the new cell global identifier CGI in the BCCHs, stopping sending the channel allocation request pseudo-signallings. The method disclosed by the invention is capable of timely and accurately finding and suppressing the pseudo-base station, extremely low in interference on the existing mobile network, and free from influence on normal mobile communication.

Description

technical field [0001] The invention belongs to the field of mobile communication, and in particular relates to a method for effectively detecting and suppressing false base stations. Background technique [0002] In a mobile communication system, a base station is a network infrastructure deployed by a telecom network operator with legal operating qualifications. Pseudo base stations are base stations erected by other units or individuals not for the purpose of normal communication of users that have appeared in recent years. It is a kind of high-tech equipment commonly used in current telecommunications fraud methods. The "concealment" and "mobility" of fake base stations make it quite difficult to supervise and arrest them, and their assembly cost is low, only a few thousand yuan, but the return can reach tens of thousands of yuan. There has been a tendency to overflow. In 2013, the hazards of fake base stations broke out intensively, with bad social impact, endangering...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W12/12
Inventor 李赓赵玉萍赵辉李斗孙春来
Owner PEKING UNIV
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