Patent ID: 9554326
Date: 2017-01-24
CPC Classifications: H04W

Claim:
1. An active scanning method in a wireless local area network (WLAN), the active scanning method comprising: receiving, by a second station (STA), a first probe request frame broadcasted from a first STA; broadcasting, by the second STA, a second probe request frame to an AP (access point), wherein the second probe request frame includes a probe request frame detection field, and wherein the probe request frame detection field indicates that the second STA has received the first probe request frame; and receiving, by the second STA, a beacon frame or a probe response frame from the AP, wherein the probe response frame is a response to the second probe request frame, and wherein when the same information should be transmitted to the first STA and the second STA as a response to the first probe request frame and the second probe request frame, the AP broadcasts the probe response frame.