主权项 |
1. A method for an initial channel access performed by a station (STA) in a wireless LAN, comprising:
receiving, by the STA, a frame including information on a channel state and N (N>1) access parameter sets from an access point (AP); selecting, by the STA, a random variable when the information on the channel state indicates that a wireless link is congested; selecting, by the STA, one access parameter set among the N access parameter sets based on the random variable; and transmitting an association request frame to the AP by performing the initial channel access based on the one access parameter set, wherein each of the N access parameter sets includes information on a contention window minimum (CWmin), a contention window maximum (CWmax) and an arbitration inter-frame space (AIFS) to perform the initial channel access by the STA. |