RADIO LAN SYSTEM, MOBILE COMMUNICATION SYSTEM AND RADIO TERMINAL, AND TERMINAL AUTHENTICATION METHOD

摘要

PROBLEM TO BE SOLVED: To enhance the security in a radio LAN system by authenticating a radio terminal with high accuracy. SOLUTION: In the case that the radio LAN system 100 authenticates the radio terminal 103 accessible to both a mobile communication system 102 and the radio LAN system 100, the radio terminal 103 makes an access request to the radio LAN system 100 and requests the mobile communication system 102 on the authentication at the same time, the mobile communication system 102 transmits the information used for the authentication processing of the radio terminal 103 by the mobile communication system 102 to the radio LAN system 100 in response to the request on the authentication, and the radio LAN system 100 uses the information used for the authentication processing to carry out the authentication processing of the radio terminal 103 making the access request. COPYRIGHT: (C)2004,JPO