METHOD OF TRANSMITTING OFDM SIGNAL, OFDM TRANSMITTER AND OFDM RECEIVER

摘要

PPROBLEM TO BE SOLVED: To provide an OFDM transmitter in which computational complexity is reduced when performing macro-diversity reception at a receiver side, deterioration in channel estimation precision caused by interference is reduced and control is simplified. PSOLUTION: The OFDM transmitter includes: a plurality of radio transmission units (108A-109A and 108B-109B); an allocation section (103) for allocating a first pilot signal and a first data signal to subcarriers within a specific time-frequency domain determined to be different between the radio transmission unit and for allocating a second pilot signal and a second data signal to subcarriers outside the relevant domain, respectively; a multiplication section (104) for multiplying the first pilot signal and the first data signal by a complex value determined for each relevant domain; and modulation sections (106A and 106B) for applying OFDM modulation to the first pilot signal and the first data signal multiplied by the complex value and to the second pilot signal and the second data signal to generate an OFDM signal to be supplied to each of the radio transmission units. PCOPYRIGHT: (C)2007,JPO&INPIT