Comment by porridgeraisin

There was full team that found out that did the test that 26ghz doesn't work IRL. It didn't even work across a street corner. But they were ignored in favour of some well, career pushers.

In india, jio is using 26ghz for wifi now instead. It's a service called airfiber. This don't even use any 5G. It's a weird custom hybrid solution where all the frames are wifi. Density here means that it's feasible to put the receiver on the rooftop of apartment buildings wherever you can get LoS. So in some sense it's been salvaged and those bands are actually being used. It's a fairly popular service.

URLL failed because it's main immediate usecase was supposed to be vehicle to vehicle comms. And auto didn't want telcos middlemanning there. But there is still hope here.