WIRELESS COMMUNICATION APPARATUS

摘要

Wireless communication apparatus includes a receiving unit (23) that receives, as a received signal, a first packet having, as a unit, a slot including at least two repetitive symbol sequences obtained by transmitting the same symbol, while switching a plurality of antenna beams having different directions; a carrier detecting unit (24) that detects, from the received signal, a carrier every symbol interval; a slot time measuring unit (25) that measures, from the received signal, a slot length; a generating unit (29) that generates a second packet having, as a unit, the aforementioned slot; a transmission timer (27) that subtracts, by the slot length, from the time interval up to the transmission of the second packet; a slot determination unit (26) that determines whether any carrier has been detected within a time interval of the slot length; a control unit (28) that, if any carrier has been detected within the time interval of the slot length, stops the transmission timer for the time interval of the slot length; and a transmitting unit (30) that transmits the second packet in accordance with the transmission timer.