RADIO COMMUNICATION APPARATUS AND RADIO COMMUNICATION METHOD

摘要

The throughput of communication between transmitting and receiving stations can be raised in accordance with fading variation rate therebetween. An antenna (9) and a reception RF part (1) receive a signal transmitted from another radio communication device. A transmission path time variation determining part (3) uses the received signal to determine the time variation amount of transmission path response. A pilot signal insertion interval deciding part (4) uses the determined time variation amount of transmission path response to decide an insertion interval of a known reference signal (pilot signal). A transmitting part (5) inserts, based on the insertion interval, the pilot signal into an information signal to be transmitted and then transmits the information signal in which the pilot signal has been inserted to the other radio communication device. In this way, the information signal can be transmitted based on an optimum pilot signal insertion interval in the transmission path which interval is decided from the determination result of the time variation amount of transmission path response. As a result, the throughput of the communication can be improved without providing any redundant pilot signals.