MOBILE STATION AND METHOD FOR CERTIFYING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a third generation mobile station having an integrated ESN which can be certified by a second generation wireless communication system by using remote subscriber information. SOLUTION: A mobile station 20 is provided with an integrated user identity module(I-UIM) 24 and a removable user identity module(R-UIM) according to an inter-second generation standard system protocol. The I-UIM 24 includes an integrated electronic serial number(I-ESN) and integrated subscriber information and the R-UIM includes a removable electronic serial number(R-ESN) and remote subscriber information. The mobile station transmits a pair of the I-ESN and the integrated subscriber information or a pair of the R-ESN and the remote subscriber information depending on the user of the mobile station. The registry of the I-ESN making a pair with the integrated subscriber information and the R-ESN making a pair with the remote subscriber information is managed by a wireless communication system.