Patent ID: 8761693

Claim:
A wireless transmission apparatus for transmitting transmission signals via wireless transmission paths, comprising: a transmission signal reception portion receiving transmission signals; a transmission signal registration portion registering the transmission signals received by the transmission signal reception portion to a transmission buffer portion; a modulation portion which picks up a transmission signal registered at a first position between the transmission signals stored in the transmission buffer portion and which modulates the picked up transmission signal; a transmission portion which transmits the transmission signal modulated by the modulation portion by using a transmission power amount which corresponds to a modulation method used by the modulation portion; a traffic amount calculation portion which calculates a traffic amount caused by the traffic signals received by the transmission signal reception portion at each predetermined unit time interval; an average traffic amount calculation portion which calculates an average traffic amount that is an average of the traffic amount calculated by the traffic amount calculation portion in a nearest predetermined interval every time the traffic amount calculation portion calculates the traffic amount; and a modulation method setting portion which changes the modulation method used by the modulation portion based on the average traffic amount calculated by the average traffic amount calculation portion.