A pseudo base station identification method and device
An identification method and pseudo base station technology, applied in the field of pseudo base station identification methods and devices, can solve the problem that the pseudo base station identification system is difficult to analyze, cannot effectively identify abnormal location updates from the same pseudo base station, cannot analyze the influence range of the pseudo base station, etc. question
Active Publication Date: 2019-07-05
CHINA MOBILE GROUP SHAIHAI
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However, with the development of pseudo-base station identification technology, operators of pseudo-base stations have also begun to use some technical means to evade capture, such as placing pseudo-base station equipment on vehicles, moving continuously after the equipment is turned on, and constantly changing the LAC during the movement process. , these methods will make it difficult for the pseudo base station identification system to analyze which location updates come from the same pseudo base station
[0004] To sum up, since most of the current pseudo-base stations are vehicle-mounted systems, which move fast and change LAC during the movement, it is impossible to effectively identify which abnormal location updates come from the same pseudo-base station, and thus it is impossible to analyze the influence of the pseudo-base station scope
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[0026] In view of the fact that most of the current pseudo base stations are in-vehicle systems, the moving speed is fast, and the LAC is changed during the movement process, which makes it impossible to effectively identify which abnormal position updates come from the same pseudo base station, and thus cannot analyze the influence range of the pseudo base station. The embodiment of the invention proposes a technical solution, which determines the abnormal location update data of each cell by updating the obtained terminal location data, and then further obtains the motion trajectory of the pseudo base station according to a given algorithm, so that the pseudo base station can be effectively identified. The base station can accurately analyze the influence range of the pseudo base station.
[0027] The main implementation principles, specific implementations and corresponding beneficial effects of the technical solutions of the embodiments of the present invention will be desc...
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The invention discloses a pseudo base station identification method and device, comprising: obtaining the location update data of the terminal; determining the abnormal location update data of each cell formed by the pseudo base station in the obtained location update data; for each cell Generate the pseudo location area code LAC chain of the cell; merge the pseudo LAC chains between the cells until they converge to generate a pseudo LAC group; determine the trajectory of the pseudo base station according to the generated pseudo LAC group. In this way, the position of the pseudo base station can be dynamically positioned in real time to facilitate on-site capture, and it can effectively identify which abnormal location updates come from the same pseudo base station, and then analyze the scope of influence of the pseudo base station.
Description
technical field [0001] The present invention relates to the field of communication technologies, and in particular, to a method and device for identifying a pseudo base station. Background technique [0002] Pseudo base station is a new type of mobile communication equipment developed based on software radio technology. It is used to simulate the base station of telecom operators and utilize the one-way authentication loophole in the Global System for Mobile Communication (English: Global System for Mobile communication, abbreviation: GSM) protocol. , at the Um interface between the mobile station (English: Mobile Station, abbreviation: MS) and the base station subsystem (English: Base Station Subsystem, abbreviation: BSS), disguised as a legal BSS and network subsystem (English: Network SubSystem , abbreviation: NSS), invade the communication link of the mobile communication network, disconnect the MS from other parts of the legitimate network, and turn the MS to communicat...
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IPC IPC(8): H04W12/12H04W24/00H04W12/122
Inventor 刘之浩陈方杰姚馨珏杨之纬
Owner CHINA MOBILE GROUP SHAIHAI