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TV White Space

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Published on 28 August 2019

High-speed Internet over long-distances from just one access point!

What is TV White Space? 
Leti’s demonstration shows a wireless-network solution based on TV White Space technology that provides broad coverage indoors and outdoors: up to 64 km range in open spaces. This demonstration is the first one implementing the IEEE 1900.7 standard for a wide-area, wireless network.

TV White Spaces (TVWS) are portions of the spectrum made available for unlicensed use at locations where the spectrum is not being used by licensed services, such as television broadcasting. 
  • The technology is authorized in the U.S., the UK, Japan, Singapore, Canada and Brazil. Trials have been conducted in these countries, as well as India, South Africa, Ghana, Botswana, Namibia, Tanzania and Kenya

  • The new IEEE 1900.7 standard allows exploitation of TVWS, making Internet traffic possible without interfering with TVrecepti on quality

  • Leti has been an active contributor to the IEEE 1900.7 standard, which will be published in 2016

  • This technological innovation extends the local network coverage (house, garden, campus, Internet access, local radio broadcast) and lowers the level of emitted power

  • Deploying this technology is simple and inexpensive thanks to the low number of access points needed to cover a large geographical area compared to WiFi 

  • TVWS technology operates in unlicensed bands

  • TVWS is a standardized solution, compliant with regulation

Primary applications for this invention include:
  • Rural broadband access, in particular in sparsely populated communities where DSL is not widely deployed (>10 km range with rooftop antennas)
  • Ubiquitous access to communication networks in developing countries
  • University campuses / industrial hot spots (typically a 1 km range in urban areas) 
  • Public or advertisement information broadcasting
  • Small-scale corporate or extended home networks (indoor / outdoor)

How does it work?  
Using a transceiver designed by Leti, the innovation is an advanced non-orthogonal
waveform filter bank multicarrier (FBMC) technology also designed by Leti. It enables
flexible usage of the spectrum and excellent adjacent-channel interference control.
The CES demonstration is the first worldwide implementation of this new modulation
used in the IEEE 1900.7 standard. The demonstration also shows how FBMC technology
outperforms classic broadband multicarrier technology (OFDM). 


Consumer Electronics Show (CES  2017)


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