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For the context - what do US, UK and China do?
In the US, it's open for unlicensed use for very low power devices. That is, it's open for WiFi. It's used by WiFi 6E, 7, and 8. https://www.fcc.gov/document/fcc-opens-entire-6-ghz-band-ver...
Earlier quoted context omitted.
That's exactly why it should be used for wifi! 2.4GHz is completely unusable in urban environments, because you're getting interference from two dozen neighbours. And everyone has a poor connection, so their "handy" nephew will turn up the transmission power to the maximum - which of course makes it even worse. 6GHz barely makes it through a concrete wall, so you're only receiving your own AP, so you have the whole b…
> 6GHz barely makes it through a concrete wall, so you're only receiving your own AP, so you have the whole bandwith mostly to yourself. I'm no expert and only speak from personal experience. When the signal is weak, you don't have the whole bandwith, you only get low throughput. Ideally you would want a strong, high penetration signal (low frequency) and all users on separate channels. It's of course impossible in d…
It gets really bad when signal is difficult to distinguish from noise because (for example!) everyone is talking at roughly the same power level. Think crowded bar with everyone yelling at each other.
When one is significantly louder than others, even if the others are not that quiet, it’s not a big deal unless at your ear/antenna they have the same loudness. Think concert with big speakers for the main act.
6ghz is better for many isolated networks right next to each other precisely because the others ‘voices’ lose power so quickly. You don’t have the competition for attention. Think ‘every couple in the bar gets their own booth’.
Wired connections are even better, because the amount of noise required to be unable to tell apart signal from noise is orders of magnitude higher - like ‘noisy welder right on top/EMP’ levels. Because the wires can actually be shielded. It’s like having your own hotel room.
Tbh it's probably much more useful for mobile operators than wifi. 6GHz does not propagate well at all at wifi power limits and as such one 320MHz band probably won't overlap much with neighbours, even in apartment buildings. This does preclude having 640MHz bands though in future wifi standards, but I'm not sure how important that is - Wifi7 on MLO could theoretically deliver 7.2gbit/sec in 2x2 config and double tha…
That's exactly why it should be used for wifi! 2.4GHz is completely unusable in urban environments, because you're getting interference from two dozen neighbours. And everyone has a poor connection, so their "handy" nephew will turn up the transmission power to the maximum - which of course makes it even worse. 6GHz barely makes it through a concrete wall, so you're only receiving your own AP, so you have the whole b…
Tbh it's probably much more useful for mobile operators than wifi. 6GHz does not propagate well at all at wifi power limits and as such one 320MHz band probably won't overlap much with neighbours, even in apartment buildings. This does preclude having 640MHz bands though in future wifi standards, but I'm not sure how important that is - Wifi7 on MLO could theoretically deliver 7.2gbit/sec in 2x2 config and double tha…
And why does it need to be reserved exclusively for them? Can’t they be just another user of a well established standard or do they want to abuse the crap out of it?
If other types of devices also use your channel, you'll have to shut up and wait for airtime even longer. Having WiFi and cellular co-exist mean that they are both fighting eachother over airtime, and both spending a lot of time silent.
It's preferable to avoid channel overlap when the services need to co-exist.
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It’s even more amusing in some ways. A common way to refer to those from the USA in Brazil, for instance (even an official one!) is ‘Norte Americano’. Which is all kinds of weird because - what about Mexico and Canada? And what about the ‘United states’ part? It’s just to disambiguate from ‘Americano’ as in what others in South America sometimes use to refer to latin Americans and as a little bit of a FU to the USA,…
Ahh, I forgot about that...and to be transparent, I actually have no idea what French Guyana, Haiti, or Belize typically do to differentiate between people of the American continent(s) and US persons. I should have said Hispanoamerica, but oh well.
Earlier quoted context omitted.
That's exactly why it should be used for wifi! 2.4GHz is completely unusable in urban environments, because you're getting interference from two dozen neighbours. And everyone has a poor connection, so their "handy" nephew will turn up the transmission power to the maximum - which of course makes it even worse. 6GHz barely makes it through a concrete wall, so you're only receiving your own AP, so you have the whole b…
> 6GHz barely makes it through a concrete wall, so you're only receiving your own AP, so you have the whole bandwith mostly to yourself. I agree with this and the fact that 6GHz should still be available for wifi, but this whole bandwidth frenzy over wifi has always seemed like a meme for anyone except power users. A 4K netflix stream caps out around 15mbps, so >95% of typical home users will be just fine using 2.4/5…
In practice it is all about degraded performance. If you're sitting in another room than the AP, close to your neighbour, do you want to be left with 50Mbps remaining out of the original 5000Mbps, or 2Mbps remaining out of the original 200Mpbs?
Earlier quoted context omitted.
> To be really pedantic we should acknowledge there's no good reason to separate Europe from Asia, it's all one geographical continent. To be even more pedantic you have to throw in Africa as well, as that is connected by land to Asia just like Europe is! Now we have the supercontinent Afroeurasia which contains like 85% of the worlds population.
Suez Canal exists and cuts off Africa from Eurasia
Relevant watching: Map Men: How many continents are there? (https://www.youtube.com/watch?v=hrsxRJdwfM0)
EU, not Europe.
I live in a EU country in an apartment and 5GHz is completely crowded and pretty much unusable because of DFS (making your WiFi AP unexpectedly stop to do a complete scan and choose a new channel), so 6GHz is the only stable, high bandwidth option here, and we need more channels so that most peopole chan switch to it.
The cellular networks operators can have that shitty 5GHz part of the spectrum if they want it!