White Space (radio technology)

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As white space in the are telecommunications frequencies referred to which a broadcast service is assigned, but not used locally.

The interest in the use of white spaces arose after analog television in the UHF frequencies was replaced by DVB-T , which means that less spectrum is required for terrestrial television . The spectrum that is released is also known as the digital dividend .

In the USA , the Federal Communications Commission has passed a regulation according to which unlicensed end devices may use these white spaces if they comply with certain regulations. In 2020, the FCC approved a range of devices to provide broadband to rural areas. The devices send and receive in the spectrum of the VHF channel 2 to 35.

In the EU there is still no regulation on the unlicensed use of these white spaces. But there are studies of how these could be used in the future.

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  1. ↑ [1] FCC Report 10-174 "Second memorandum opinion and order - in the matter of unlicensed operation in TV Broadcast bands - additional spectrum for unlicensed devices below 900 MHz and in the 3 GHz band"
  2. ↑ FCC Chairman Pai Proposes Updating TV White Space Rules. Retrieved July 10, 2020 .
  3. ↑ [2] (PDF file; 94 kB) CEPT Report 24 "A preliminary assessment of the feasibility of fitting new / future applications / services into non-harmonized spectrum of the digital dividend (namely the so-caled 'white spaces' between allotments) "
  4. ↑ [3] CEPT ECC Draft Report "Technical and operational requirements for the possible operation of cognitive radio systems in the 'White spaces' of the frequency band 470-790 MHZ"

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