| 摘要 |
<p>Provided in the present invention are a method for data transmission, a method for data reception, and a device. By utilizing among orthogonal subcarriers at a transmitting end the orthogonal subcarriers that correspond to data symbols to bear the data symbols, a data subcarrier is acquired. By replacing with a pilot sequence the data symbol carried in a predetermined first orthogonal subcarrier among the orthogonal subcarriers, a pilot subcarrier is acquired. When an OFDM modulation is performed on the basis of the data subcarrier and of the pilot subcarrier, parallel transmission to a receiving end and corresponding reception at the receiving end are performed. Because the data symbol carried in a predetermined first orthogonal subcarrier among orthogonal subcarriers is replaced with a pilot sequence, and the pilot sequence is utilized for phase tracking or channel estimation, the transmission performance of an OFDM system is increased. This solves the technical problem of poor transmission quality due to an increased error rate caused by a method for reducing PAPR by sequence coding.</p> |
