Data transmission coexistence within television white space channels
US9276795B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2014 |
| Grant date | Mar 1, 2016 |
| Priority date | — |
| Expiry date | Apr 22, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W16/14
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods, systems, and/or devices are provided that permit data transmissions over unused television channels. A method operational in a receiver device, includes monitoring one or more repurposed channels within a television broadcast frequency spectrum for data waveforms, wherein waveforms of different bandwidths coexist within the one or more repurposed channels, and at least a larger waveform has a first bandwidth larger than a channel bandwidth for each repurposed channel. The method also includes receiving a waveform over a repurposed channel from among the one or more repurposed channels, wherein the received waveform has a second bandwidth smaller than the channel bandwidth. The method further includes processing the received waveform by applying a downclocking factor to a clock of the receiver device that causes the receiver device to process the received waveform according to the second bandwidth to obtain a data payload from the received waveform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.