Communication device and communication method

Abstract

A communication device according to the present invention comprises: a communication unit that transmits a first signal and receives the first signal in a state in which there is at least one communication device that uses the same frequency and the same time period to perform processing for transmission and reception, and in which in a first time period in a frequency band in which the processing can be carried out, no signal is transmitted from another communication device or a plurality of communication devices; and a control unit that determines a transmission power based on the received first signal, wherein in a second time period in the frequency band, the communication unit uses the transmission power to transmit a second signal to said one communication device or a communication device among the plurality of communication devices.

Dependencies are inferred from the claim text.