<p>An RF unit (72) and modulation-demodulation unit (74) receive a packet signal that is from a base station device at a first period of a frame including at least the first period and a second period and includes information pertaining to the frame configuration. An extraction unit (86) identifies the second period in the frame on the basis of the received packet signal. A configuration unit (88) configures the wait time in the identified second period. A carrier sense unit (90) executes a carrier sense over the configured wait time. The modulation-demodulation unit (74) and RF unit (72) broadcast the packet signal on the basis of the results of the carrier sense.</p>
