What is this 5G approved by the FCC?

The FCC just approved 5G super fast cell communication.  It is very different so it will require a huge infrastructure investment and time to roll it out.  Simply: it is a higher frequency communication that requires "line-of-sight" which means lots (lots!) of antennas that will be "in sight" of your phone.  Here is a nice article: http://www.wired.com/