In 2016, G.fast looked very promising.
Thousands worked at developing and deploying.
It wasn't enough.
Most carriers are investing
in fiber or 5G instead.
Dark Blue: Firm commitments from incumbent: BT (10M), Belgacom, Australian NBN, Swisscom, Austria, Bezeq Israel, Chunghwa Taiwan, Telus Canada, Telekom South Africa, SK Korea, (U.S.) AT&T, Century, Frontier, Windstream, Belgium, Omantel
Mid Blue: Smaller carriers in Germany, Norway, Finland, Japan
- Published: 09 July 2017 09 July 2017
Rami Verbin of Sckipio has no doubts: Doubling the frequency range will double speeds from today's 500-800 megabits. Soon, perhaps in 2018, apartment buildings will get 1200-1500 megabits from either fiber to the basement or wireless to the rooftop. Close in distribution points, like those announced by Australia's NBN, will also see those speeds.
Thousands of homes can now get 500-800 megabits with first generation chips, using 106 GHz. The field results confirm the models used by Rami and the other members of the standards committee. BT's Trevor Linney says the model has proven "pretty much spot on."
At 50 meters - 8-10 stories in most buildings - 1400 gigabits is expected. A gigabit should reach 80-90 meters. After about 150 meters, the extra spectrum yield almost no improvement. High frequencies don't travel very far over copper. Chart from Sckipio at right.)
The standards committee is already working on using 424 GHz and even 848 GHz.