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NODE DEVICE, NETWORK SYSTEM, AND METHOD FOR DISCOVERING NEIGHBOR OF NODE DEVICE IN TVWS COMMUNICATION ENVIRONMENT

  • US 20160249391A1
  • Filed: 02/19/2016
  • Published: 08/25/2016
  • Est. Priority Date: 02/25/2015
  • Status: Active Grant
First Claim
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1. A node device using a TV white space (TVWS), comprising:

  • a decision unit configured to compare energy levels of a first sub-channel and at least one second sub-channel adjacent to the first sub-channel among a plurality of sub-channels with respect to a digital TV (DTV) channel including the plurality of sub-channels and decide whether the DTV channel is an available channel; and

    a discovery unit configured to, if the DTV channel is decided as the available channel, discover a beacon by scanning the first sub-channel in the DTV channel.

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