Node device, network system, and method for discovering neighbor of node device in TVWS communication environment
US9980150B2 · kind B2 · utility
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15Claims
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Key dates
| Filing date | Feb 19, 2016 |
| Grant date | May 22, 2018 |
| Priority date | — |
| Expiry date | Jun 15, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W8/005
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A node device using a TV white space (TVWS) includes a decision unit for comparing 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 deciding whether the DTV channel is an available channel, and a discovery unit for, if the DTV channel is decided as the available channel, discovering a beacon by scanning the first sub-channel in the DTV channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.