Active search method in wireless lan system
AssigneeKt Corporation
InventorsYang Seok JEONG, Joo Young KIM
Life of this patent
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Abstract
An active search method in a wireless LAN system is disclosed. The active search method comprises the steps of: transmitting, through an arbitrary channel, a preceding probe request frame for confirming the existence of an access point; acquiring, from at least one access point, a probe ACK frame that is a response to the preceding probe request frame; setting a maximum waiting time on the basis of the number of probe ACK frames; and performing an active search for an access point in the arbitrary channel for the maximum waiting time. Therefore, the waiting time for receiving a probe response frame can be reduced.
Claims12
A method for active scanning by a station (STA), the method comprising:
- transmitting, by the STA to an access point (AP), a probe request frame including first information indicating whether an optional element is requested to be included in a probe ACK frame;
- and
- receiving, by the STA from the AP, the probe ACK frame including the optional element requested by the STA, when the first information is included in the probe request frame and the AP is capable of transmitting probe ACK frames.
A method for active scanning by an access point (AP), the method comprising:
- receiving, by the AP from a station (STA), a probe request frame including first information indicating whether an optional element is requested to be included in a probe ACK frame;
- and
- transmitting, by the AP to the STA, the probe ACK frame including the optional element requested by the STA, when the first information is included in the probe request frame and the AP is capable of transmitting probe ACK frames.
An apparatus of a station (STA) for active scanning, the apparatus comprising:
- a transceiver;
- and
- a processor,
- wherein the processor is configured to:
- cause the transceiver to transmit, to an access point (AP), a probe request frame including first information indicating whether an optional element is requested to be included in a probe ACK frame;
- and
- cause the transceiver to receive, from the AP, the probe ACK frame including the optional element requested by the STA, when the first information is included in the probe request frame and the AP is capable of transmitting probe ACK frames.
An apparatus of an access point (AP) for active scanning, the apparatus comprising:
- a transceiver;
- and
- a processor,
- wherein the processor is configured to:
- cause the transceiver to receive, from a station (STA), a probe request frame including first information indicating whether an optional element is requested to be included in a probe ACK frame;
- and
- cause the transceiver to transmit, to the STA, the probe ACK frame including the optional element requested by the STA, when the first information is included in the probe request frame and the AP is capable of transmitting probe ACK frames.
Dependencies are inferred from the claim text.