Radio Transmission Device, Radio Reception Device, Radio Transmission Method, and Radio Reception Method

A radio receiving apparatus comprising:

• a receiving section that receives a data signal that is transmitted by a single carrier and is composed of a plurality of frequency components, and in which a frequency component of one part among the plurality of frequency components has been replaced by a pilot signal;
• a conversion section that executes time-domain to frequency-domain conversion on a received data signal;
• and
• a channel estimation section that performs channel estimation for each of the plurality of frequency components using a part corresponding to a pilot signal within a data signal on which conversion has been executed.

A radio transmitting method of the present invention comprising:

• a conversion step of executing time-domain to frequency-domain conversion on a data signal;
• a replacement step of replacing a frequency component of one part among a plurality of frequency components composing a data signal on which conversion has been executed by a pilot signal;
• a reverse-conversion step of executing frequency-domain to time-domain reverse-conversion on a data signal in which the frequency component of one part has been replaced by a pilot signal;
• and
• a transmitting step of transmitting by means of a single carrier a data signal on which reverse-conversion has been executed.

A radio receiving method comprising:

• a receiving step of receiving a data signal that is transmitted by a single carrier and is composed of a plurality of frequency components, and in which a frequency component of one part among the plurality of frequency components has been replaced by a pilot signal;
• a conversion step of executing time-domain to frequency-domain conversion on a received data signal;
• and
• a channel estimation step of performing channel estimation for each of the plurality of frequency components using a part corresponding to a pilot signal within a data signal on which conversion has been executed.