Patent ID: 8798024

Claim:
A communication method in a communication system configured by a transmitting station device and a receiving station device for transmitting and receiving a multicarrier signal using a spectrum including a plurality of subcarriers, the communication method comprising: a control step of setting a superposed rate which is a rate in which a superposed band in which interference is occurring is used in a used frequency band used for transmitting the multicarrier signal so as to increase frequency utilization efficiency of the used frequency band; and a transmitting step of transmitting the multicarrier signal using a spectrum allocated in accordance with the set superposed rate, wherein an allocation target of data to be transmitted is the entirety of the superposed band and a non-superposed band in the used frequency band and, wherein the communication method is a communication method when three or more communication systems simultaneously perform communication, and the control step further comprises: a spectrum arranging step of deriving the superposed rate from a bandwidth of each spectrum and a predetermined superposed bandwidth in which each spectrum is superposed on another spectrum and of arranging each spectrum so that the superposed rate of each spectrum is the same; and a spectrum allocating step of allocating the spectrum arranged in its own communication system.