&gt; 4G definitions are still largely being fought over<p>In which world (other than T-Mobile US) does 4G mean anything other than LTE Advanced?  Sure, there was a fight for many years but it was because of carrier marketing, not because of real technical grounds.<p>At least on a basic level I am quite interested in what comes out of the 5G efforts because what&#x27;s being discussed will be very interesting for new use cases that cannot be done on existing networks.