| 摘要 |
PROBLEM TO BE SOLVED: To recognize the outside of a communication range by a user in the case of the outside of the communication range of a specified base-station area, to set a re-connection with the base station or a connection with another base station by the user, and to improve a usability in an airport or the like. SOLUTION: A radio communication system uses: a circuit controller; a plurality of base station devices; and a multi-channel access system composed of at least one radio terminal. In the radio communication system, the outside of the communication range of the specified base station is made to inform by the display screen or audio output of the radio terminal, when the radio terminal is positioned outside the communication range of the specified base station during a transmission or during a reception by a communication channel. COPYRIGHT: (C)2007,JPO&INPIT
|
