Fronthaul networks, preferably fiber, to a 20+ year concentrator (not a 802.3 switch) at the same location of an electrical panel. Get rid of the SoC and AP which is basically a Sun workstation with NICs and use remote radio heads (or in switch speak, port ASICs.)  This design will work for 50+ years or the lifespan of most buildings. One and one. Best return on labor possible. The MTBF shorter lived parts are replaceable like light bulbs or sprinkler heads.

Spectrum is not limited.  Paul Baran pointed this out in 1994. Probably a good idea to stop with that property rights theory of limited spectrum.

• Shorter range rf transceivers connected to fiber could produce a significant improvement - - tremendous improvement, really.
• a mixture of terrestrial links plus shorter range radio links has the effect of increasing by orders and orders of magnitude the amount of frequency spectrum that can be made available.
• By authorizing high power to support a few users to reach slightly longer distances we deprive ourselves of the opportunity to serve the many.
• Communications systems can be built with 10dB ratio
• Digital transmission when properly done allows a small signal to noise ratio to be used successfully to retrieve an error free signal. And, never forget, any transmission capacity not used is wasted forever, like water over the dam. Not using such techniques represent lost opportunity.