I don't know about 4G, but I was under the impression that 5G is very short range, competitively speaking, and will require many more cell sites than 2/3/4G. So assuming that 4G is more energy efficient than 2/3G, how does that work with 2/3/4 times the infrastructure required for 5G? Or is 5G really THAT much more efficient that many more transmitters is better than a few 3G ones?
Or am I completely barking up the wrong tree here?