Patent ID: 7990883

Claim:
A communication system forming a network having no relationship of a controlling station and a controlled station, in which a plurality of communication stations respectively operate in a self-organized distributed control manner using a plurality of communication channels, wherein each of the communication stations manages at least time information concerning transmission/reception time of a beacon signal and communication channel information concerning a communication channel to use, a transmitting communication station trying to transmit the beacon signal or data switches a communication channel to use in accordance with the time information and the communication channel information to transmit the beacon signal or the data, a receiving communication station trying to receive the beacon signal or the data switches the communication channel to use in accordance with the time information and the communication channel information to receive the beacon signal or the data, each of said communication stations notifies said time information and said communication channel information by describing in the beacon signal, and grasps a time and a communication channel at and through which another communication station carries out communication in accordance with said time information and said communication channel information described in the beacon signal received from the another communication station, and a new entry communication station newly entering said network produces neighboring station time zone information regarding a time zone already used by the another communication station by superposing said time information and said communication channel information described in the beacon signal received from the another communication station, and determines transmission time for transmitting a beacon signal of the new entry communication station and a communication channel used for transmitting the beacon signal of the new entry communication station.