Method and system for distinguishing pseudo base station in real time

Abstract

The invention provides a method for distinguishing a pseudo base station in real time. The method comprises steps as follows: when a mobile terminal detects that an LAC (location area code) varies, acquiring the LAC and latitude and longitude coordinates; if the variation of the LAC from an initial LAC exceeds a first preset value or the variation of the latitude and longitude coordinates from initial latitude and longitude coordinates exceeds a second preset value, determining that a base station connected with the mobile terminal is the pseudo base station; positioning the pseudo base station according to a radio lateral positioning technology. The invention further provides a system for distinguishing the pseudo base station in real time. The system comprises an acquisition unit, a determination unit and a positioning unit. With the adoption of the method and the system, the pseudo base station can be distinguished before junk short messages are received, privacy disclosure can be effectively prevented, and the pseudo base station can be detected in real time and distinguished accurately and quickly.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and system for real-time identification of pseudo base stations. Background technique [0002] In a cellular mobile communication system, when a mobile terminal selects a Public Land Mobile Network (PLMN), it will try to reside in a cell with reliable downlink decoding and good uplink communication quality, so that the mobile terminal Receive the paging information and system information of the PLMN and can establish a call process with this cell and other actions. At the same time, monitor the broadcast control channel (BCCH) carrier that can reselect the frequency point of the adjacent cell. The pseudo base station sets the BCCH carrier as the BCCH of a certain adjacent cell to increase the strength of the transmitted signal so that the mobile terminal in the target area can receive The pseudo base station signals reselection to the pseudo base station. Pseudo...

AI Technical Summary

Problems solved by technology

[0004] The above method is limited to the analysis of the content of the message after the user receives the spam message, or compares the geographic location by querying the database, but the test results show that the geographic location of the base station is very vague, and the latitude and longitude cannot be clearly located. Even a normal base station cannot be accurately located. To locate the specific location of the base station, the geographical location of the mobile phone client must also open the location service data access to obtain it. This method is not accurate enough and consumes a lot of traffic resources and consumes a lot of mobile phone power.

Moreover, after receiving spam messages, judging the fake base station, the scope of security threats to deal with is relatively narrow

It is impossible to actively determine the existence of the pseudo base station in order to intercept the short message sent by the pseudo base station in time

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