METHOD AND APPARATUS OF DYNAMIC FREQUENCY SELECTION IN WIRELESS LOCAL AREA NETWORK SYSTEM

摘要

Provided is a method for selecting a dynamic frequency by an access point (AP) set to communicate over a primary sub-channel and a secondary sub-channel in a basic service set (BSS) in a wireless local area network. The method includes: transmitting a frame including a quiet element and a quiet channel element; and performing channel measurements during the channel interval wherein the quiet element defines a quiet interval when transmission does not occur, the quiet channel element indicates that the secondary sub-channel is to be quiet during the quiet interval, and the quiet channel element indicates a condition under which the primary sub-channel can be used during the quiet interval.