The wireless communication system, which is a frequency band with one other wireless system are used together, wherein the wireless communication system comprises:wireless communications devices a plurality of master - stations, the communications carried out using different frequency channels; anda wireless communication device of a slave - station, with one of the wireless communication devices of the pluralities of the master - stations, and a wireless communications, whereinif a wireless signal of the other wireless system is detected and communications be stopped, which were carried out by means of a frequency channel, the wireless communications device of the master - station the wireless communications device of the slave - station, the wireless communications with the use of this frequency channel has been performed, instructs the connection destination to the wireless communication device of a different master - station to change, the communications using a different frequency channel, and wherein the wireless communication device of the slave - station the connection destination to the wireless communication device of the other master - station, in accordance with the instruction from the wireless communication device of the master - station, and whereinthe wireless communications device of the master - station is a communication channel information to the wireless communications device of the slave - station, which, a frequency channel shows for use in communications in the wireless communications device of the master - station and a frequency channel, via which the wireless signal of the other wireless system is detected, ..
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