It needs to work backwards, much like Video Codec and ask what do the stakeholders really want or need?
We are closing in to rolling out the last / final phase of 5G. And yet none of the Massive MIMO on FDD is happening. We are still stuck on 32T32R, hardly that impressive considering we have that in LTE already. Not to mention the insane complexity increase from 4G to 5G. And judging from the previews of 6G that seems to be event worst.
If you ask an average user, they will tell you they don't feel much different between 4G and 5G. Yes there are capacity increase and other things. But at this stage I don't think the benefits outweigh the cost of switching. That is both from MNOs and End user perspective.
4G used clever ideas to get much better practical spectrum efficiency than people thought was possible... At the cost of very expensive infrastructure. The biggest selling point to carriers was standalone 5G networks that were cheaper to build but paradoxically carriers are prone to frame 5G as a feature customers pay more for.
The area where wireless networks fall short is coverage. Obviously many homes and businesses are difficult to cover with wireless technology. Also many "IoT" and public service situations need wide coverage, and a network that works in 92% of places is "close but not cigar." There are few obvious answers rather than "lots of fiber and very cheap small cells" and "satellite technology" but it's what it takes to address wireless use cases that currently aren't addressed.
Most of what passes for 5G in the US is the same old but full duplex with wider channels.
Calling that 5G obscures the fact that millimeter wave 5G standalone is a totally different beast, and a huge network engineering challenge.
It may seem bureaucratic to regulate what people can call 5G, but US consumers get ripped off thinking they're on an advanced network when in fact you could call it the long-term evolution (see what I did there?) of the existing network.
In Germany I notice a massive difference in 4G and 5G. If I see 4G on my phone and know I can put it away again if it's not some kind of an emergency because it's basically unusable. I am not sure what is going on here, probably the telcos that are limiting the bandwidth.
The thing that changed with 5G is that my iPhone 13 Pro‘s battery has been draining 30% faster. Enable the hotspot and it gets burning hot.
My pessimistic take is it’s being optimized for the “numbers” users benchmark with. The 5G repeater towers that display on your phone as full-bars but the tower itself is constrained, to juicing the speedtests. Apple even changed how the RSSI translates to the bars. There are engineers doing great work, and the marketing teams muddle the waters (like ATT’s “5Ge”).
I think it’s also because the best frequencies are already occupied by 2g/3g and 4g so it’s hard to provide good 5g coverage over large areas.
I’m not in the industry, so I can’t speak intelligently on this, but as a user, literally the only change I’ve actually noticed in my day-to-day is that when they removed 3G, I lost a shitload of connectivity. I live probably half a mile from the capital building in a greater metro region of over a million people and I still get shit connection at home on TMo. Maybe physics is the problem, but why waste time making things insanely fast in a lab setting? Work on making it fucking usable in the real world, like in a neighborhood with trees.
I do not give a shit if I can download at 500mbps while resting my phone on a wireless router. I need to be able to USE it.
Ive never heard a single person say they don't see a difference between 4G and 5G, atleast in the USA.
Ive switched my entire home internet setup to 5G and haven't had an outtage in two years. Whereas it was once a week with fiber. I also can fallback with duel sims.
5G has legitimately changed my quality of (digital) life.
Something I've noticed is that a phone is actually usable at a stadium or concert when 3g or 4g felt essentially useless at that density.