The problem is that most BTSs have weak links in remote locations, and it will become a problem to manage the increasing density of such devices in this places.
I've read that 5g will allow for more divices/bts and larger coverange, but I still don't understand how that will be possible.
edit: some numbers from here https://twitter.com/Gabeuk/status/1099709788676636672 --
> Challenges of 5G deployment, according to Zhengmao Li, EVP China Mobile (biggest operator on the world).
> 1. 5G needs 3 X base stations for same coverage as LTE due to higher frequencies
> 2. Power consumption of a 5G base staion is 3 X LTE
> 3. 5G base station costs 4 X price of LTE
so, 1/3 the coverage at 4x the price
IDK, I'm just an analyst so I'm waiting for the internal spec sheets, until then I can only speculate, but I don't see anyone too exited about it.
IMHO most clients will be happy with an average of 40mbps and decent latencies, which is somewhat difficult to achieve consistently in many places.
But I also know that competitors will force us to get onto 5g with marketing stunts. There is already a large ISP marketing LTE as 5g so...
Edit: Frequencies depend more on regulation than anything else, and the spectrum in Spain is not really open for many experiments. Also more power consumption will be a problem In remote places. Maybe we could use more solar arrays, but that's increasing the cost further and adding complexity.
I've seen about ~20 of my friend switching to 5G phones, partially because Youtube buffers when seeing 1080p videos on the 4G network.