Method for transmitting and receiving channel measurement information in wireless lan system and device for same

A method for receiving, by an access point (AP), channel measurement information from a station (STA) in a wireless local area network (WLAN) system, the method comprising:

• transmitting a measurement request signal to request channel measurement in a unit of time unit (TU)/1024 to the STA;
• and
• receiving channel measurement information from the STA,
• wherein the channel measurement information is measured based on a First Measurement Duration field comprised in the measurement request signal, wherein the First Measurement Duration field comprises information on a requested measurement duration in the unit of the TU/1024.

A communication device for transmitting channel measurement information in a wireless local area network (WLAN) system, the communication device comprising:

• a memory;
• and
• a processor connected to the memory to process a signal transmitted to and received from another station device,
• wherein the processor is configured to:
• receive a measurement request signal to request channel measurement in a unit of time unit (TU)/1024 from an access point (AP);
• and
• transmit channel measurement information to the AP, and
• the channel measurement information is measured based on a first measurement duration field comprised in the measurement request signal, wherein the first measurement duration field comprises information on a requested measurement duration in the unit of the TU/1024.