Re: what's the frequency kenneth?
Both. One report I read classified 5G Next Radio bands as such: under 1 GHz are "low", 1 to 6 GHz are "middle", and above 6 GHz are "high".
All of the 5G NR frequency charts I've seen so far only define bands in the low and mid ranges. Most of the bands are a subset of current LTE bands.
It appears as if some the first 5G deployments might be on bands used for 2G and 3G services today. A few carriers have stated that they're retiring those services starting next year. Meanwhile, 5G telco equipment is supposed to roll out around the same time, so the timelines make sense.
But those deployments may also be on newly acquired bands between 2 and 5 GHz. Both the FCC and Ofcom have been busy auctioning off those bits of spectrum. The carriers will probably want to put it all to good use.