Method and apparatus for transmitting wake-up packet in wireless LAN system

A transmitting apparatus transmitting a wake-up frame in a wireless LAN system, the apparatus comprising:

• a transceiver transmitting or receiving a radio signal;
• and
• a processor configured to control the transceiver, wherein the processor is configured to:
• generate a wake-up frame to which an on-off keying (OOK) method is applied;
• and
• transmit the wake-up frame to a receiving apparatus,
• wherein the wake-up frame is configured with an on signal and an off signal,
• the on signal is configured with a signal obtained by masking half of a signal in which a cyclic prefix (CP) has been inserted into a first time domain signal,
• the first time domain signal is generated by inserting a coefficient into contiguous 13 subcarriers of a 20 MHz band and performing 64-point inverse fast Fourier transform (IFFT), and
• a signal located at a front part of the on signal is nulled.