OFDM COMMUNICATION DEVICE AND GUARD INTERVAL LENGTH DETERMINING METHOD

摘要

An OFDM communication device (10) is characterized in including an RF/IF/BB unit (11) for receiving a series of symbols, a frequency fluctuating quantity information acquiring unit (21) for acquiring frequency fluctuating quantity information indicative of a frequency fluctuating quantity of the series of the received symbols and a GI length determining and instructing unit (23) for determining a GI length in accordance with frequency fluctuating quantity information acquired by the unit (21) and instructing a transmitting device of carrying out a symbol transmission with the determined GI length.