FIELD: radio engineering, communication.
SUBSTANCE: method to access a transmitting medium by a station (STA) in the wireless LAN system comprises stages for receiving a predetermined frame including a timestamp are provided; identification of restricted access window (RAW) assignment field included in the predetermined frame; and performing a slot access defined on the basis of a sub-field of the RAW assignment field, when the STA belongs to the RAW relating to the RAW assignment field, at that, whether the STA belongs to the RAW is determined whether an attachment identifier (AID) is included. The STA stations in the AID range and the RAW assignment field include a sub-field indicating whether the AID range is determined by TIM bitmap.
EFFECT: possibility to reduce the consumption of the signal transmission resources by simplifying the signal information.
13 cl, 31 dwg, 2 tbl
