METHOD FOR REDUCING UNAUTHORIZED SYSTEM ACCESS

摘要

PROBLEM TO BE SOLVED: To reduce unauthorized system access by a mobile station. SOLUTION: A method for reducing access to communication system resource by an unauthorized mobile station (102) is concerned. A mobile exchange (104) transmits a message to an authentication station (106) in order to put a first authentication process into operation. The authentication station responds by using a message which can contain variables for executing the first process result and additive authentication process. On the basis of the message, the mobile exchange determines whether setup of calls are delayed until the additive authentication process is smoothly finished or whether setup of calls is started parallel with the additive authentication process. COPYRIGHT: (C)2003,JPO