I dont see any technical explanations here so I will give it a try.
5g wasn't meant to exist so soon, but it was a technology gold rush in a way. Whichever hardware/software manufacturer managed to design, apply, and deploy 5g the fastest, before the 3gpp design spec was finalized got all their version of 5g made official 3gpp.
This means that if Company A deploys and gets their version of 5g widely adopted, but it requires Company A software/secret-sauce, then Company B is forced to pay them to license the tech.
There are alot of theories over why it is how it is, but in reality, it's just companies making plays to force their licensing into the marketplace for max revenue. In the end, it's not about you the consumer Source: I'm a 5g software engineer
It's the "RCA Television System" all over again. Get as much as you can out there, before it's even really ready, and that way when it does show up for reals you'll have the major market share and everyone else will follow.
To be fair here, Goldmark's mechanical system wasn't ever going to be a thing except in niche cases, but Sarnoff's relentless business plays killed it before it got out there.
Your explanation jives with what I remember from my time in Ma Bell's care, and from what little I still connect to from that life.
RCA screens did not risk human health. This is more like the Boing Max disaster. Lets push a technology and pray nobody connects the dead people to our business kind of strategy.
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