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Scanning method in wireless system

  • US 9,264,981 B2
  • Filed: 03/10/2009
  • Issued: 02/16/2016
  • Est. Priority Date: 03/14/2008
  • Status: Active Grant
First Claim
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1. A method of acquiring network information, performed by a station, in a wireless local area network (WLAN), the method comprising:

  • transmitting a probe request frame to an access point, the probe request frame including a Homogeneous Extended Basic Service Set ID (HESSID) field and a network type field, the HESSID field including a HESSID desired by the station, the network type field including a network type desired by the station;

    receiving a probe response frame from the access point, the probe response frame being transmitted when the network type of the network type field is matched with a network type of the access point and the HESSID of the HESSID field in the probe request frame is matched with a HESSID of the access point, the probe response frame comprises the HESSID field and the network type field;

    transmitting a request frame to the access point, the request frame including a request for information about a link connecting the WLAN and another network; and

    receiving a response frame from the access point in response to the request frame, the response frame including the information about the link,wherein the information about the link comprises a field indicating a speed of the link that is used to connect the WLAN and the another network.

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