Wireless communication system and communicating method thereof

The present invention relates to, and more particularly to a wireless communication system in the system is ubiquitous computing technologies to wireless communication to the optimal communication channel and its communication method of the wireless communication system. To this end, the present invention is in a radio communication system for performing communication using a plurality of channels in the specific frequency range, and a plurality of wireless communication devices to perform a specific function of its own; Includes a radio channel controller, the radio channel controller for calculating the best channel based on the channel state information transmitted from the plurality of wireless communication devices is the plurality of the channel change request signal that corresponds to the best channel the calculated the wireless communications device transmits to a wireless communication device, and is configured to communicate to dynamically change to the optimum channel by the channel change request signal. Wireless communication, 2.4GHz, channel, ZigBee (Zigbee), the gateway