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Method and apparatus for scanning existing networks in TVWS

  • US 9,544,839 B2
  • Filed: 02/09/2015
  • Issued: 01/10/2017
  • Est. Priority Date: 10/21/2009
  • Status: Active Grant
First Claim
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1. A method of scanning existing networks at a first station in a communication system, the method comprising:

  • receiving, by a first station, a white space map (WSM) comprising information for available channels from a second station; and

    scanning, by the first station, the existing networks on the available channels identified within the received WSM,wherein scanning the existing networks is performed by one or more of a first scheme or a second scheme, the first scheme comprising listening to a beacon frame from an AP station of a basic service set (BSS) on a specific channel among the available channels identified by the received WSM, the second scheme comprising transmitting a probe request frame to an AP station of the BSS on any channel among the available channels identified by the received WSM; and

    receiving a probe response frame in response to the probe request frame.

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