Base station, mobile station, method of controlling base station, and recording medium

A mobile station comprising:

• a receiver that receives a first orthogonal frequency division multiplexing (OFDM) signal generated based on a first OFDM symbol;
• and
• a processor that
• generates a first valid symbol by eliminating a first guard interval from the first OFDM symbol,
• converts the first valid symbol being a time domain signal to a frequency domain signal by performing Fourier transform for the first valid symbol, and
• generates transmission data by executing demodulation processing, based on the frequency domain signal, wherein
• at least one of a second OFDM symbol adjacent to the first OFDM symbol or at least one of a plurality of subcarriers configuring the first valid symbol is blank.

A control method for a base station, the method comprising:

• generating a first modulation symbol from transmission data;
• converting the first modulation symbol from a frequency domain signal to a first valid symbol being a time domain signal by performing inverse Fourier transform for the first modulation symbol;
• inserting a first guard interval into the first valid symbol;
• outputting an inserted signal as a first orthogonal frequency division multiplexing (OFDM) symbol;
• transmitting a first OFDM signal generated based on the first OFDM symbol;
• and
• leaving blank at least one of
• a second OFDM symbol adjacent to the first OFDM symbol or at least one of a plurality of subcarriers configuring the first valid symbol.