Methods and apparatuses for PPDU transmission and reception in a
wireless LAN
system are disclosed. A method according to embodiments of the present disclosure can include the steps of generating, by a first STA, a PPDU, wherein one or more
data bits are mapped to each of data subcarriers for
data transmission in the PPDU based on an MCS; and transmitting, by the first STA, the PPDU to a second STA.