Ofdm transmitter apparatus and ofdm receiver apparatus

An orthogonal frequency division multiplexing receiving apparatus comprising:

• a receiving section that receives an orthogonal frequency division multiplexing signal including a synchronized sequence formed with a real number alone or with an imaginary number alone;
• and
• a timing detecting section that detects correlation using a synchronized sequence replica formed with the real number alone or with the imaginary number alone.

An orthogonal frequency division multiplexing transmitting apparatus comprising:

• a frame forming section that forms a frame in which a synchronized sequence is mapped such that symbols in symmetric positions with respect to a direct current component subcarrier are complex conjugates;
• and
• an orthogonal frequency division multiplexing modulating section that orthogonal frequency division multiplexing modulates the frame.

An orthogonal frequency division multiplexing transmitting apparatus comprising:

• a frame constructing section that constructs a frame to which synchronized sequences are mapped in a situation in which symbols in symmetric positions with respect to a direct component subcarrier are complex conjugates of each other and the symbols on one side are furthermore code-inverted to the symbols on the other side;
• and
• an orthogonal frequency division multiplexing modulating section that orthogonal frequency division multiplexing modulates the frame.

An orthogonal frequency division multiplexing receiving apparatus comprising:

• a receiving section that receives a frame in which a synchronized sequence is mapped such that symbols in symmetric positions with respect to a direct current component subcarrier are complex conjugates;
• and
• a timing detecting section that detects correlation using a synchronized sequence replica of a real number signal similar to a result of the synchronized sequence subject to orthogonal frequency division multiplexing modulation.

An orthogonal frequency division multiplexing receiving apparatus comprising:

• a receiving section that receives a frame to which a synchronized sequence is mapped in a situation in which symbols in symmetric positions with respect to a direct component subcarrier are complex conjugates of each other and the symbols on one side are furthermore code-inverted to the symbols on the other side;
• and
• a timing detecting section that detects correlation using a synchronized sequence replica of an imaginary number signal similar to a result of the synchronized sequence subject to orthogonal frequency division multiplexing modulation.