Patent ID: 7751824

Claim:
A radio communication system in which a plurality of wireless terminals form wireless channels separately between a common base station unit and the wireless terminals and communicate with the base station unit, the radio communications system comprising: a quality managing unit configured to manage the communication quality of the wireless channel for each of said plurality of wireless terminals by calculating a polling schedule for each of said plurality of wireless terminals on the basis of a predetermined parameter to assign an occupied band of the wireless channel for each of said plurality of wireless terminals; a channel securing unit configured to secure continuously a wireless channel for at least one wireless terminal by controlling the data rate of the wireless channel for each of said plurality of wireless terminals according to a change in the channel state between wireless sections; and a rate change detecting unit configured to detect a change in the data rate of at least one wireless channel, wherein when the change in the data rate is detected by the rate change detecting unit, the quality managing unit recalculates the polling schedule for each of said plurality of wireless terminals to update the occupied band assigned state of the wireless channel for each of said plurality of wireless terminals.