fool around with 28 GHz
Yes, in open plan offices. Or rooftops.
Qualcomm's stuck its flag into the desert island labelled “5G”, hoping to turn it into a lush paradise. 5G today is mostly a feature list awaiting the conclusion of a standards processes in coming years. In the meantime, carriers and vendors want their work to land in the standards – and their patents to generate luscious …
This is what I've found baffling about 5G from an RF hardware perspective; these mm wave frequencies are expensive to generate and don't go anywhere. OK there really aren't any easy options for providing an RF channel 800MHz or more wide, but how the heck this can be turned into a commercially viable cellular system eludes me.