Method for transmitting or receiving signal in wireless communication system, and device for supporting same

A transmission stage for transmitting a signal in a wireless communication system, comprising:

• a radio frequency (RF) module for transmitting and receiving radio signals;
• and
• a processor configured to control the RF module, wherein the processor is configured to:
• generate at least one bit as a complex value symbol by using a modulation scheme;
• map the complex value symbol to subcarriers having an even index or subcarriers having an odd index among subcarriers of at least one configured resource block (RB);
• perform an inverse fast Fourier transform (IFFT) on the subcarriers to which the complex value symbol has been mapped in order to generate a time continuous signal including a first real part signal and a first imaginary part signal;
• generate a second real part signal and a second imaginary part signal based on a partial signal in each of the first real part signal and the first imaginary part signal;
• perform a direct current (DC) bias on the time continuous signal based on the second real part signal and the second imaginary part signal;
• and
• transmit the DC-biased signal.