Method and apparatus for scanning in wireless LAN
AssigneeLG Electronics Inc.
InventorsGiwon Park, Jinsam Kwak, Kiseon Ryu
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Abstract
A method and an apparatus for scanning in a wireless LAN are disclosed. The method for scanning in a wireless LAN comprises the steps of: enabling a station (STA) to receive, from a first access point (AP) operated in a first channel, a detection frame comprising identifier information of a second AP operated in a second channel and beacon frame transmission time information of the second AP, and enabling the STA to scan a beacon frame of the second AP on the basis of the beacon frame transmission time information of the second AP. Thus, the present invention can rapidly perform a scanning operation.
Claims14
A method for scanning in a wireless local area network (LAN), the method comprising:
- receiving, by a station(STA), a discovery frame from a first access point(AP) operating on a first channel, the discovery frame including identifier information of a second AP operating on a second channel and beacon frame transmission time information of the second AP;
- and
- scanning, by the STA, a beacon frame of the second AP based on the beacon frame transmission time information of the second AP,
- wherein the beacon frame transmission time information of the second AP includes information on a difference between a transmission time of the discovery frame and a transmission time of a beacon frame of the second AP transmitted after the discovery frame is transmitted, and
- wherein a transmission period of the discovery frame is shorter than a transmission period of a beacon frame of the first AP.
An STA (station) of a wireless local area network (LAN) system, the STA comprising:
- a processor configured to:
- receive a discovery frame from a first access point(AP) operating on a first channel, the discovery frame including identifier information of a second AP operating on a second channel and beacon frame transmission time information of the second AP, and
- scan a beacon frame of the second AP based on the beacon frame transmission time information of the second AP,
- wherein the beacon frame transmission time information of the second AP includes information on a difference between a transmission time of the discovery frame and a transmission time of a beacon frame of the second AP transmitted after the discovery frame is transmitted, and
- wherein a transmission period of the discovery frame is shorter than a transmission period of a beacon frame of the first AP.
Dependencies are inferred from the claim text.