Method for transmitting data transmission resource allocation information in wireless LAN system, and apparatus therefor

An access point (AP) apparatus for transmitting a radio frame to a plurality of stations (STAs) in a wireless local area network (WLAN) system, the AP apparatus comprising:

• a processor configured to generate the radio frame including a signaling field and a data field, the signaling field including a first signaling field (SIG A field) including common control information of the plurality of STAs and a second signaling field (SIG B field) including user specific control information of each of the plurality of STAs, and the second signaling field further including data transmission resource allocation information of each of the plurality of STAs;
• and
• a transceiver configured to transmit the frame generated by the processor to the plurality of STAs,
• wherein, if the frame is transmitted with a bandwidth of 40 MHz or more, the processor configures a first one of the data transmission resource allocation information transmitted through a first 20 MHz band independently from a second one of the data transmission resource allocation information transmitted through a second 20 MHz band, the first 20 MHz band and the second 20 MHz band are two contiguous 20 MHz bands,
• wherein the processor further configures the second signaling field transmitted through a specific 20-MHz band to include data transmission resource allocation information for the data field on the specific 20-MHz band, and
• wherein the processor further configures the second signaling field transmitted through the specific 20 MHz band to further include data transmission resource allocation information for the data field on another 20 MHz band which is non-contiguous to the specific 20 MHz band, if the frame is transmitted with the bandwidth of 40 MHz or more.