METHOD AND APPARATUS FOR ACTIVE SCANNING IN WIRELESS LAN

Title:

METHOD AND APPARATUS FOR ACTIVE SCANNING IN WIRELESS LAN

Document Type and Number:

WIPO Patent Application WO/2014/061978

Kind Code:

A1

Abstract:

Disclosed are a method and an apparatus for active scanning in a wireless LAN. In the method for active scanning in the wireless LAN, a scanning STA, which has received from a different STA a first probe request frame, can start a probe timer and perform a clear channel assessment (CCA) for detecting a channel state of a receiving channel. When the channel state is not busy until the probe timer reaches a minimum channel time, the scanning STA transmits to an AP from the receiving channel a second probe request frame, and when the channel state is busy until the probe timer reaches the minimum channel time and the scanning STA does not receive a probe reply frame, which includes at least the same information expected to be received based on scanning information, the scanning STA can transmit to the AP from the receiving channel the second probe request frame.

Inventors:

PARK GI WON (KR)
RYU KI SEON (KR)
CHO HAN GYU (KR)

Application Number:

PCT/KR2013/009216

Publication Date:

April 24, 2014

Filing Date:

October 15, 2013

Export Citation:

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Assignee:

LG ELECTRONICS INC (KR)

International Classes:

H04W48/16; H04W48/14

Foreign References:

US20080014934A1	2008-01-17
US20110075589A1	2011-03-31
US20120076045A1	2012-03-29
US7894405B2	2011-02-22

Other References: