| 摘要 |
<p>An OFDM transmitter apparatus and an OFDM receiver apparatus wherein the calculation amount of cell search can be reduced and a faster cell search and a reduced circuit scale can be accomplished. A base station apparatus (100), which serves as an OFDM transmitter apparatus, comprises an SCH inserting part (130) that serves as a frame forming means for forming a frame in which synchronous sequences are arranged such that symbols located symmetrically about a subcarrier of a DC component are complex conjugates; and an IFFT part (135) that servers as an OFDM modulation means for OFDM modulating the formed frame. Thus, at a mobile station apparatus (200), which receives the frame, only a real number signal can be used as an SCH replica signal to perform a correlation processing, so that the calculation amount can be reduced and a faster cell search can be accomplished. In addition, because of the reduced calculation amount, the circuit scale at the receiving end can be reduced.</p> |
