IDENTITY ACQUISITION OF MOBILE STATIONS IN A MOBILE TELECOMMUNICATIONS NETWORK

摘要

A method for acquiring identity parameters of a target mobile station operating in a GSM mobile telecommunications network, within a predetermined area in which the target mobile station may be located and within which radio signals from base stations of the mobile network are either not present (by use of a Faraday Cage) or are disrupted (by use of a disrupting signal), whereby to force the target mobile station to enter a no-service mode, A virtual telecommunications network is presented within the predetermined area, configured at a low GSM protocol level, and employing the emergency calls procedure, which is such that the target mobile station attaches to the virtual network, and the virtual network requires the target mobile station to disclose identity parameters.