5G uses high-frequency waves that support faster speeds
but don't travel as far as current wireless frequencies.
Instead of relying on large cellphone towers
it needs "small cell" sites that are much closer together.
The barrier to 5G is the availability of spectrum,
sufficient to assure that the broadband promise happens.
A significant portion of the spectrum must be dedicated to 5G,
in the millimeter-wave bands above 30GH,
including spectrum at 60GHz, up to 70-80GHz or even higher.
Availability is the domain of government regulations,
and with 50 states, actively operating as 50 laboratories
of democracy, it's anyone's guess how it all shakes out.
Comcast will no doubt cry bloody murder as their profits get impinged.
Will the City of Detroit have the groundwork; legislation/regulation in place ?
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