OFDM OFDM METHOD AND DEVICE FOR TRANSMITTING OFDM SIGNAL AND METHOD AND DEVICE FOR RECEIVING OFDM SIGNAL

摘要

The transmitter generates a frequency-shifted OFDM baseband signal by performing a frequency-upshifting of the signal to be transmitted by the difference between the carrier frequencies f0 and fbase through the digital module; generating an OFDM symbol signal having the carrier frequency f0 by upconverting the frequency-shifted OFDM baseband signal to fbase using an analog oscillator; and transmitting the OFDM symbol signal having the carrier frequency f0 .f is 128 △ base of an integral multiple of the frequency f and the closest frequency as the carrier frequency f0, where △ f is the sub-carrier interval.