| 摘要 |
PROBLEM TO BE SOLVED: To provide a radio LAN system in which a user previously having an authority connected to a network need not conduct an operation for acquiring the authority again even when a network topology is changed; and to provide a radio terminal used for the system, a radio base station, and a server. SOLUTION: The radio base station 2b has a set-information storage for storing a set information displaying conditions permitting a reversion to its own station to the radio terminal, and a radio-communication set control unit for transmitting the set information while the set information is contained in a beacon. The radio terminal 1 extracts the set information from a radio-communication interface receiving the beacon emitted from the radio base station 2b and the beacon emitted from the radio base station 2b, and decides whether or not the communication setting of its own terminal coincides to conditions displayed by the extracted set information. The radio terminal 1 transmits a reversion demand to the second radio base station when the communication setting of its own terminal does not coincide with the conditions displayed by the extracted set information, conducts a mutual authentication with the server for the setting, and acquires the set information. COPYRIGHT: (C)2006,JPO&NCIPI
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