Method and device for transmitting wakeup packet in wireless lan system

A transmitting device for transmitting a wake-up packet in a wireless LAN system, the transmitting device comprising:

• a transceiver transmitting or receiving radio signals;
• and
• a processor controlling the transceiver, wherein the processor is configured to:
• configure a first wake-up packet having a first data rate based on a first sync field and a second wake-up packet having a second data rate based on a second sync field, and
• transmit the first and second wake-up packets to a receiving device,
• wherein the first and second wake-up packets are configured as an on signal or an off signal by applying an On-Off Keying (OOK) method,
• wherein the first sync field includes a first sequence,
• wherein the second sync field includes a second sequence being a complementary sequence of the first sequence,
• wherein a number of coefficients 1 and a number of coefficients 0 included in the first sequence are the same,
• wherein the first and second sequences have a length of 32 bits, and
• wherein each bit of the first and second sequences have a duration of 2 us.