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Method and device for achieving pseudo base station detection

A technology of pseudo base station and preset time, which is applied in the direction of security devices, electrical components, wireless communication, etc., can solve the problem that the pseudo base station cannot be detected, and achieve the effect of detection

Inactive Publication Date: 2015-09-09
CHINA MOBILE GROUP JIANGSU
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, with the development of the pseudo base station system, the LAC of the new pseudo base station will pretend to be the same legal LAC as the normal base station of the operator, so the pseudo base station cannot be detected by detecting the legality of the LAC before and after the handover

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  • Method and device for achieving pseudo base station detection
  • Method and device for achieving pseudo base station detection
  • Method and device for achieving pseudo base station detection

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Embodiment Construction

[0022] In practical applications, the workflow of the pseudo base station is as follows: figure 1 As shown, it specifically includes the following steps:

[0023] Step 0: Establish normal communication between the mobile terminal and the normal base station of the operator;

[0024] Steps 1-2: The mobile terminal discovers a new LAC and meets the cell switching conditions, then the mobile terminal sends a LAC update request;

[0025] Here, the new LAC is the LAC of the pseudo base station;

[0026] Steps 3-4: Update the CELLID and LACID to the pseudo base station, the pseudo base station allocates an independent dedicated control channel (Stand-Alone Dedicated Control Channel, SDCCH) to the mobile terminal, and establishes a signaling channel;

[0027] Steps 5-6: The fake base station sends junk messages, such as advertisements, to the mobile terminal through the signaling channel; after that, the fake base station sends a LAC update failure message to the mobile terminal; ...

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Abstract

The invention provides a method for achieving pseudo base station detection. The method comprises: when switching between cells, a mobile terminal triggers time recording and records CELLIDs and LACIDs acquired by the mobile terminal before and after the mobile terminal is switched; the mobile terminals updates the CELLID and LACID twice within a preset time threshold and finally replaces the CELLID and LACID with those before the mobile terminal is switched, and determines that a pseudo base station is detected if a received short message has a pseudo base station junk short message characteristic in the two reselection processes of the CELLID and the LACID.

Description

technical field [0001] The invention relates to a false base station screening technology, in particular to a method and device for realizing false base station detection. Background technique [0002] In the prior art, since the first generation of pseudo base stations has the feature of using illegal location area codes (Location Area Code, LAC), therefore, dedicated hardware equipment or signaling monitoring systems on the operator’s network side can detect mobile terminals when cell handover occurs The false base station can be discovered by using the legality of the reported LAC before and after the handover. [0003] However, with the development of the pseudo base station system, the LAC of the new pseudo base station will pretend to be the same legal LAC as the normal base station of the operator. In this way, the pseudo base station cannot be detected by detecting the legality of the LAC before and after the handover. Contents of the invention [0004] In view of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W12/12H04W24/00H04W64/00H04W12/122H04W12/128
CPCH04W12/12H04W4/14H04W36/0077H04W24/04
Inventor 张滨李俊娄涛汪德正林华生李海龙段炼
Owner CHINA MOBILE GROUP JIANGSU