Method and device for transmission or reception based on distributed resource unit tone plan in wireless lan system

A method comprising:

• generating, by a first station (STA), a physical layer protocol data unit (PPDU) including data field, wherein the data field is mapped on at least one distributed resource unit (DRU);
• and
• transmitting the PPDU to at least one second STA on a bandwidth including a 20 MHz channel,
• wherein based on the at least one DRU including a 26-tone DRU:
• the 26-tone DRU is one of 9 predefined 26-tone DRUs;
• one 26-tone DRU is defined as every 9th subcarrier within each of at least one range, which includes a first lowest subcarrier among available subcarriers within the 20 MHz channel;
• another 26-tone DRU is defined as every 9th subcarrier within each of at least one range, which includes a second lowest subcarrier among available subcarriers within the 20 MHz channel;
• another 26-tone DRU is defined as every 9th subcarrier within each of at least one range, which includes a third lowest subcarrier among available subcarriers within the 20 MHz channel;
• another 26-tone DRU is defined as every 9th subcarrier within each of at least one range, which includes a fourth lowest subcarrier among available subcarriers within the 20 MHz channel;
• another 26-tone DRU is defined as every 9th subcarrier within each of at least one range, which includes a fifth lowest subcarrier among available subcarriers within the 20 MHz channel;
• another 26-tone DRU is defined as every 9th subcarrier within each of at least one range, which includes a sixth lowest subcarrier among available subcarriers within the 20 MHz channel;
• another 26-tone DRU is defined as every 9th subcarrier within each of at least one range, which includes a seventh lowest subcarrier among available subcarriers within the 20 MHz channel;
• another 26-tone DRU is defined as every 9th subcarrier within each of at least one range, which includes an eighth lowest subcarrier among available subcarriers within the 20 MHz channel;
• another 26-tone DRU is defined as every 9th subcarrier within each of at least one range, which includes a ninth lowest subcarrier among available subcarriers within the 20 MHz channel.

A first station (STA) device comprising:

• at least one transceiver;
• and
• at least one processor connected to the at least one transceiver,
• wherein the at least one processor is configured to:
• generate a physical layer protocol data unit (PPDU) including data field, wherein the data field is mapped on at least one distributed resource unit (DRU);
• and
• transmit, through the at least one transceiver, the PPDU to at least one second STA on a bandwidth including a 20 MHz channel,
• wherein based on the at least one DRU including a 26-tone DRU:
• the 26-tone DRU is one of 9 predefined 26-tone DRUs;
• one 26-tone DRU is defined as every 9th subcarrier within each of at least one range, which includes a first lowest subcarrier among available subcarriers within the 20 MHz channel;
• another 26-tone DRU is defined as every 9th subcarrier within each of at least one range, which includes a second lowest subcarrier among available subcarriers within the 20 MHz channel;
• another 26-tone DRU is defined as every 9th subcarrier within each of at least one range, which includes a third lowest subcarrier among available subcarriers within the 20 MHz channel;
• another 26-tone DRU is defined as every 9th subcarrier within each of at least one range, which includes a fourth lowest subcarrier among available subcarriers within the 20 MHz channel;
• another 26-tone DRU is defined as every 9th subcarrier within each of at least one range, which includes a fifth lowest subcarrier among available subcarriers within the 20 MHz channel;
• another 26-tone DRU is defined as every 9th subcarrier within each of at least one range, which includes a sixth lowest subcarrier among available subcarriers within the 20 MHz channel;
• another 26-tone DRU is defined as every 9th subcarrier within each of at least one range, which includes a seventh lowest subcarrier among available subcarriers within the 20 MHz channel;
• another 26-tone DRU is defined as every 9th subcarrier within each of at least one range, which includes an eighth lowest subcarrier among available subcarriers within the 20 MHz channel;
• another 26-tone DRU is defined as every 9th subcarrier within each of at least one range, which includes a ninth lowest subcarrier among available subcarriers within the 20 MHz channel.

A second station (STA) device comprising:

• at least one transceiver;
• and
• at least one processor connected to the at least one transceiver,
• wherein the at least one processor is configured to:
• receive, through the at least one transceiver, a physical layer protocol data unit (PPDU) including data field from a first STA on a bandwidth including a 20 MHz channel;
• and
• decode the data field mapped on at least one distributed resource unit (DRU),
• wherein based on the at least one DRU including a 26-tone DRU:
• the 26-tone DRU is one of 9 predefined 26-tone DRUs;
• one 26-tone DRU is defined as every 9th subcarrier within each of at least one range, which includes a first lowest subcarrier among available subcarriers within the 20 MHz channel;
• another 26-tone DRU is defined as every 9th subcarrier within each of at least one range, which includes a second lowest subcarrier among available subcarriers within the 20 MHz channel;
• another 26-tone DRU is defined as every 9th subcarrier within each of at least one range, which includes a third lowest subcarrier among available subcarriers within the 20 MHz channel;
• another 26-tone DRU is defined as every 9th subcarrier within each of at least one range, which includes a fourth lowest subcarrier among available subcarriers within the 20 MHz channel;
• another 26-tone DRU is defined as every 9th subcarrier within each of at least one range, which includes a fifth lowest subcarrier among available subcarriers within the 20 MHz channel;
• another 26-tone DRU is defined as every 9th subcarrier within each of at least one range, which includes a sixth lowest subcarrier among available subcarriers within the 20 MHz channel;
• another 26-tone DRU is defined as every 9th subcarrier within each of at least one range, which includes a seventh lowest subcarrier among available subcarriers within the 20 MHz channel;
• another 26-tone DRU is defined as every 9th subcarrier within each of at least one range, which includes an eighth lowest subcarrier among available subcarriers within the 20 MHz channel;
• another 26-tone DRU is defined as every 9th subcarrier within each of at least one range, which includes a ninth lowest subcarrier among available subcarriers within the 20 MHz channel.