Method and apparatus for accessing channels in wireless LAN system

摘要

The present invention relates to a wireless communication system, and more specifically, to a method and apparatus for accessing channels in a wireless LAN system. The method for accessing channels in a station (STA) of the wireless communication system according to one embodiment of the present invention comprises the steps of transmitting a first frame of a channel access request to an access point (AP); and receiving, from the AP, a second frame related to whether access to the channel is allowed in response to the first frame, wherein the second frame can include a value for a channel access start offset with respect to the STA.

主权项

1. A method of performing channel access at a specific station (STA) in a wireless communication system, the method comprising:
receiving, at the specific STA, a beacon frame including information on a channel access interval assigned to each group of stations, wherein the specific STA is allowed to access a channel within a channel access interval assigned to a specific station group including the specific STA; transmitting, at the specific STA, a power save (PS)-Poll frame to an access point (AP); receiving, at the specific STA from the AP, a response frame in response to the PS-Poll frame, the response frame including a channel access start offset value for the specific STA, and determining a channel access interval for the specific STA based on the channel access start offset value included in the response frame.