Mobile phone based method for positioning pseudo base station

Abstract

The invention belongs to the technical field of communication, and relates to a mobile phone based method for positioning a pseudo base station, aiming to realize the positioning and tracking of the pseudo base station only by an intelligent terminal instead of an expensive professional positioning device. The algorithm measures the power information of the pseudo base station via an intelligent terminal; a smart phone uploads the measured data to the cloud and preprocesses the data at the cloud; joining the point with high signal intensity with the point with low signal intensity, and taking a median line; based on the distribution characteristic of the signal intensity, a map is segmented by the median line; and the pseudo base station is finally positioned according to the segmentation of multiple points. The positioning and tracking of the pseudo base station are realized by only a smart phone, the searching cost of the pseudo base station is greatly reduced, and meanwhile, the searching of the pseudo base station is convenient and rapid.

Description

Technical field [0001] The present invention relates to the field of communication technology, in particular to a method for locating a pseudo base station based on a mobile phone. Background technique [0002] GSM is currently the most widely used mobile communication standard. The three major domestic operators, China Mobile, China Unicom and China Telecom, all use the GSM protocol for their 2G mobile networks. Since GSM was opened in Europe in 1991, more than 20 years have passed. During this period, many technicians discovered security vulnerabilities in GSM base stations through research, and even GSM sniffing tools and GSM open source projects have already appeared abroad. These research results are used by lawbreakers to defraud mobile users' money, and even more to spread anti-party and anti-social speech in an attempt to endanger national and regional security. [0003] The pseudo base station uses the mobile signaling monitoring system to monitor various signaling proces...

AI Technical Summary

Problems solved by technology

And the pseudo-base station is generally placed on the car, and it can work normally at a speed of no higher than 60 kilometers per hour, so its concealment and flexibility are very strong, and it is not necessarily located and tracked.

In addition, the areas where criminals use pseudo-base stations are generally selected in crowded areas such as bank gates and crossroads. The channel environment in such areas is complex and changeable, which seriously affects the positioning accuracy.

[0006] Due to the flexibility, variability and complexity of positioning of pseudo base stations, there is no mature commercial technology and method for positioning and tracking of pseudo base stations.

The existing technical solutions are mainly: according to the contact information in the illegal advertisement information, follow the clues to find the offender, this method is not reliable enough, and cannot effectively deal with the working pseudo base stations without contact information; The call rate roughly judges the location of the fake base station, and then notifies the relevant law enforcement officers to enforce the law. This positioning method is not flexible enough and the positioning accuracy is poor; using professional measuring equipment to search in a blanket manner requires a large number of professionals and is time-consuming. force

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