Methods and apparatus for communicating data on the basis of tone plan

An access point (AP) transmitting data in a wireless local area network (WLAN) system, the AP comprising:

• a memory;
• a transceiver;
• and
• a processor operatively coupled with the memory and the transceiver, wherein the processor is configured to:
• transmit control information to at least one station (STA);
• and
• transmit data to the at least one STA, based on the control information,
• wherein the control information comprises resource unit (RU) information for transmitting the data in a broadband,
• wherein, based on the RU information being tone plan information for a full bandwidth of the broadband, the RU information comprises allocation information on that the broadband consists of 12 guard tones, a 4068-tone RU, 5 DC tones, and 11 guard tones,
• wherein, based on the RU information being tone plan information which applies orthogonal frequency division multiplex access (OFDMA) for the broadband, the RU information comprises allocation information on that the broadband consists of 12 guard tones, a 2020-tone RU, a 13-tone RU, 7 DC tones, a 13-tone RU, a 2020-tone RU, and 11 guard tones,
• wherein the 4068-tone RU is an RU comprising 4068 tones,
• wherein a tone index of the 4068-tone RU ranges from −2036 to −3 and from 3 to 2036, and
• wherein the data is transmitted through the 4068-tone RU.

A station (STA) receiving data in a wireless local area network (WLAN) system, the STA comprising:

• a memory;
• a transceiver;
• and
• a processor operatively coupled with the memory and the transceiver, wherein the processor is configured to
• receive control information from an access point (AP);
• and
• receive data from the AP, based on the control information,
• wherein the control information comprises resource unit (RU) information for transmitting the data in a broadband,
• wherein, based on the RU information being tone plan information for a full bandwidth of the broadband, the RU information comprises allocation information on that the broadband consists of 12 guard tones, a 4068-tone RU, 5 DC tones, and 11 guard tones,
• wherein, based on the RU information being tone plan information which applies orthogonal frequency division multiplex access (OFDMA) for the broadband, the RU information comprises allocation information on that the broadband consists of 12 guard tones, a 2020-tone RU, a 13-tone RU, 7 DC tones, a 13-tone RU, a 2020-tone RU, and 11 guard tones,
• wherein the 4068-tone RU is an RU comprising 4068 tones,
• wherein a tone index of the 4068-tone RU ranges from −2036 to −3 and from 3 to 2036, and
• wherein the data is received through the 4068-tone RU.