Method and apparatus for accessing channel in WLAN system

摘要

The present invention relates to a wireless communication system, and more specifically, disclosed are a method and an apparatus for accessing a channel in a WLAN system. A method for synchronizing channels from a station (STA) in the wireless communication system, according to one embodiment of the present invention, comprises the steps of: receiving from an access point (AP) setting information with respect to an least one slot allowing channel access by the STA; receiving a synchronization frame from the AP from a slot boundary of the at least one slot; and synchronizing the channels on the basis of the synchronization frame, wherein the synchronization frame may be a null data packet (NDP) frame.

主权项

1. A method for performing channel synchronization by a station (STA) of a wireless communication system, the method comprising:
receiving configuration information regarding at least one slot in which channel access of the station (STA) is allowed, from an access point (AP); receiving a synchronization frame from the access point (AP) at a slot boundary of the at least one slot; and performing the channel synchronization on the basis of the synchronization frame, wherein the synchronization frame is a null data packet (NDP) frame, which is a Physical Layer Packet Data Unit (PPDU) frame including a Short Training Field (STF), a Long Training Field (LTF) and a signal (SIG) field without inclusion of a data field, and wherein the SIG field includes a Basic Service Set Identifier (BSSID) field and a duration field.