https://www.techradar.com/news/deutsche-telekom-holds-live-5g-nr-trial-in-berlin

Deutsche Telekom has activated a 5G New Radio (NR) cluster in downtown Berlin, claiming the testbed will allow it to see how next generation networks perform in real life conditions.

5G NR is the mobile component of what will eventually constitute commercial 5G networks, which are expected to be commercially launched in Europe in 2020, offering faster speeds, lower latency and high capacity.