Re: potential to make cable and DSL as antiquated and pointless
> 5G is just Mobile Wireless. Fixed Wireless can deliver up to 16x performance but is MORE expensive than Fibre unless it's Rural 20km Line Of Sight. Fixed Wireless needs rooftop aerials and LOS to get the performance. Mobile, NO MATTER WHAT xG, is limited to roughly 0.8GHz to 2.3GHz frequencies (Physics).
If the antennas on the base stations were the regular omni/sectorised ones, I might agree with you, however with highly directional beam steering to fixed sites, there is much more antenna gain, leading to an increased range. Also, perhaps people will install rooftop aerials too - seems simpler than running fibre to the premises if there's no existing connection.
Agreed that LOS helps a lot, but it isn't the only option. Again, with a highly directional steered beam, there is lots of opportunity to exploit beam reflections to maintain a decent signal without LOS. This would be particularly applicable in urban environments with all that nice shiny glass to reflect signals off of.
Not entirely sure why you're limiting mobiles to 2.3GHz when there are already 2.6GHz deployments in the UK (Vodafone & EE, for example). 3.5GHz isn't that big a leap up, particularly when you're looking at fixed wireless devices, rather than phones. Sure, with a traditional masthead antenna that is not very directional, these would have limited range, and building penetration probably sucks, but that's not what these base stations are deployed for. You might be interested to note that 3GPP defines a few LTE bands in the 5GHz range (bands 46 and 47), even if I can't find anyone using them (probably for obvious reasons with current 4G equipment).
> The 5G is an excuse for Infrastructure companies to sell upgrades
Not sure I disagree with you here :) I'm sure there are lots of ways these new providers can screw-up or screw-over the punters, and I'd like to be damned sure I'm going to have a decent connection speed before changing to such a provision, but then I'm already on FTTP