Device for generating ranging signal of wireless communication system and method of generating ranging signal of wireless terminal

A device for generating a ranging signal of a wireless communication system, comprising:

• an inverse fast Fourier transformer configured to perform inverse fast Fourier transform (IFFT) of a frequency-domain signal having a periodic ranging signal length into a time-domain signal independently from a ranging mode;
• a demultiplexer configured to distribute the time-domain signal having a periodic ranging signal length transformed by the inverse fast Fourier transformer based on the set ranging mode;
• an initial ranging signal generator configured to generate an initial ranging signal from the time-domain signal having a periodic ranging signal length distributed by the demultiplexer when the ranging mode is set to an initial ranging mode;
• and
• a multiplexer configured to multiplex the initial ranging signal generated by the initial is ranging signal generator when the ranging mode is set to an initial ranging mode or the time-domain signal having a periodic ranging signal length distributed by the demultiplexer when the ranging mode is set to a periodic ranging mode and output the results.