Mobile terminal identity recognition method and system

Abstract

The embodiment of the invention provides a mobile terminal identity recognition method and system. The method comprises the steps of according to IMSI or MSISDN, carried in a query request, of a to-be-recognized mobile terminal and a pre-established corresponding relation among the IMSI, the MSISDN and the TMSI, obtaining the TMSI of the to-be-identified mobile terminal through query; sending theinquired TMSI of the to-be-identified mobile terminal to a wireless signaling analysis module; enabling the wireless signaling analysis module to match the accessed TMSI of the to-be-identified mobileterminal with the queried TMSI of the to-be-identified mobile terminal, and determining whether the accessed to-be-identified mobile terminal is a target terminal or not according to a matching result. According to the embodiment of the invention, the wireless signaling analysis module is linked with the core network signaling analysis module, and the target on the air interface can be accuratelyidentified by receiving the latest TMSI of the to-be-identified mobile terminal sent by the core network signaling analysis module, so that the problem of false identification in the prior art is solved.

Description

technical field [0001] The present invention relates to the field of mobile communication, and more specifically, to a mobile terminal identification method and system. Background technique [0002] In the mobile communication standard, the International Mobile Subscriber Identity (IMSI: International Mobile Subscriber Identity) and the Mobile Subscriber ISDN number (MSISDN: Mobile Subscriber ISDN number) are signs to distinguish mobile users, and the IMSI identifies a Subscriber Identity Module Card (SIM: Subscriber Identity Module Card), MSISDN identifies a mobile phone user. [0003] In 3G, 4G, and 5G mobile communication networks, for security reasons, after a user accesses the network, the IMSI is not transmitted on the wireless side, but a temporary identifier for the mobile user is used. In WCDMA and TD-SCDMA networks, the temporary ID is used on the air interface on the wireless side. Mobile Subscriber Identity (TMSI: Temporary Mobile Subscriber Identity), the LTE n...

AI Technical Summary

Problems solved by technology

[0008] Among them, method 1 and method 2 are suitable for networks that are not encrypted or whose encryption algorithm is easy to crack. However, currently 3G / 4G / 5G networks are generally encrypted and the encryption algorithm is difficult to crack. The wireless signaling analysis module cannot Decipher the calling number and SMS content from the air interface; method 3 can be used in encrypted networks, but this method based on statistical identification has the problem of misidentification

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