A mobile communication system including a fixed station, a detection unit,
and mobile terminals, which provides a wireless communication for the
mobile terminals. The detection unit detects a utilization condition
indicative of a state where the mobile terminals are being used. The fixed
station contains a storage unit that stores a utilization-admission
condition indicative of a state where said mobile terminals are permitted
to be used, and a processing unit for executing communications with the
mobile terminals. The processing unit therefore halts communications with
the mobile terminals in accordance with the utilization condition and
utilization-admission condition.