Mobile Terminal Pseudo Base Station Identification via TAC Comparison
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Solution Overview
Problem
Pseudo base stations, disguised as legitimate operators, can deceive mobile terminals, leading to unauthorized message sending and network congestion, compromising user privacy and network security.
Innovation Solution
A method for identifying pseudo base stations by comparing the Tracking Area Code (TAC) values of detected base stations with reference TAC values of legal base stations, using conditions such as difference thresholds and signal strength to determine if a base station is pseudo, thereby preventing unauthorized access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If mobile terminals connect to base stations without verification, then connection speed and ease of operation are improved, but network security and reliability deteriorate due to pseudo base station attacks
Solution Approach 1:
The patent applies preliminary action by verifying the TAC value of the base station before the mobile terminal establishes a connection. The mobile terminal obtains the TAC value of the detected base station and compares it with the stored reference TAC value in advance, determining whether the base station is legitimate before allowing connection. This prevents pseudo base stations from deceiving terminals during the connection process.
2Reliability
If TAC value verification is implemented, then network security and reliability are improved, but device complexity and measurement difficulty increase
Solution Approach 1:
The patent applies self-service by enabling the mobile terminal to autonomously perform TAC value verification without requiring external assistance or complex verification systems. The terminal itself obtains the TAC value, compares it with the stored reference value, and determines legitimacy independently. This simplifies the overall system complexity while maintaining high reliability.
3Measurement precision
If TAC value comparison with threshold is performed, then accuracy of pseudo base station identification is improved, but loss of time increases due to additional verification steps
Solution Approach 1:
The patent applies partial action by implementing a simplified verification process that only compares the TAC value with a threshold reference value, rather than performing exhaustive verification of all base station parameters. This partial verification approach achieves sufficient identification accuracy for pseudo base station detection while minimizing the time required for verification.
Data Source
AI summary
A pseudo base station identification method, device and mobile terminal are provided. The method includes: a mobile terminal acquiring a TAC value of a detected base station; obtaining a reference TAC value, the reference TAC value being a TAC value of a legitimate base station; comparing the TAC value of the detected base station to the reference TAC value; if a difference between the TAC value of the detected base station and the reference TAC value meets a target condition, determining that the detected base station is a pseudo base station.