5G is long-range research, 4G designs are prototyping now.  Again "lifecycle cost" are not included in any comparables I've seen published anywhere.  Nor is the cost of 'energy density' EVER considered.  subsidies are a fraction that of renewables when all are included.  Renewables will never be competitive or practical no matter how much you wish it.  The "battery storage" problem is also a matter of physics no matter how much wishing is done.  No research in storage is predicting any appreciable reduction in size and scale to solve the "coulomb problem."  https://en.wikipedia.org/wiki/Coulomb%27s_law

Not to mention the toxic/pollution/recycle problems of "renewables" vs 4G.