WiFi 6 and WiFi 6E the latest generation of WiFi is here which is WiFi 6 and WiFi 6E extension. The technical term is 802.11ax. WiFi 6E you may not have heard of it’s part of WiFi 6. But has one important additional feature which is actually huge.
We going to see what that big difference is. And then also how WiFi 6 and WiFi 6E are both way better than WiFi 5. We going to break down some technical stuff and explain it as simply as possible. So you don’t have to be some kind of expert.
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What’s is the deal with Wifi 6 and 6E?
They both have the same features and improvements over WiFi 5. We will go through all the things they included. However, the difference comes in the frequency spectrums. So while WiFi 6 supports the 2.4 and 5Ghz bands as previous WiFi 5.
WiFi 6E will actually support an additional third 6Ghz band that was just recently was opened up by the FCC and registered for unlicensed use.
And other countries are also opening up part of the 6Ghz band, all for use in Wifi. This might not sound like a big deal, “oh we already have dual bands, why do we need these bands.?” But it’s actually a huge deal and we going to see it why.
What does it mean? How is it any better?
Well, the biggest benefit is going to be in spectrally noisy areas. Means areas which have a lot of Wifi signal bouncing around.
A lot of access points and routers for example, offices, apartment buildings, public venues, stuff where a lot of people going to be. On their phone and all connecting to similar WiFi hotspots.
With this new spectrum, it’s going to allow a whole bunch of more space for Wifi channels.
So different access points don’t have to be competing over it, and it’s going to have way less interference. When your setup a router, you have to choose, or have it auto choose, a signal channel it’s going to operate on.
Then all your devices are going to be connecting on that single channel.
And the channel is basically a certain range of the full 2.4, 5 or 6Ghz range. We choose only small part of it. The fewer the channel, then the more those are going to have to be shared by nearby access points.
Just like neighbors, if you have more than three neighbors like an apartment complex nearby. Then there is going to be some overlap, and it’s going to cause a lot of interference. And the current 2.4Ghz and 5Ghz range both have some shortcomings that 6Ghz will solve.
So why is 6Ghz WiFi so much better?
Even though 5ghz is basically the same amount of frequency. In reality the actual usable amount of the 5Ghz spectrum is not big as you think. It’s significantly bigger than 2.4Ghz for example, shown in the above images that 2.4Ghz have 3 channels.
Where 5Ghz has 25 channels expect not really, you can see 16 of those 25, 5Ghz channels are called DFS.
“Dynamic Frequency Selection” these are channel that happen to share the same frequency used by radar from. Airports, Weather radar stuff like that. Actually a law in United States basically says they don’t want WiFi interfering with it.
WiFi can technically use these channels, all WiFi devices and routers have technology built in to be able to detect radar signals. So you end up with nine truly free WiFi Channels, which is still better that 2.4Ghz.
The 6Ghz full spectrum is actually from 5.925 to 7.125 Ghz. That’s actually 1200Mhz a little bit more than a full Ghz.
That means it supports a whopping (59) 20Mhz Channels. And those can be divided into (29) 40Mhz, (14) 80Mhz or (7) 160Mhz.
However, there are some caveats for example, in the United State, the FCC did regulate. Which parts of that full spectrum can be used outside with standards or higher power WiFi access points.
And which can be used in lower power indoor use. Now the good news is that for indoor use, consumers uses. You can use any of the channels all of them are allowed. It’s just that on outside routers which might be used on venues stuff.
Then those are restricted and only 41 out of the 59 are usable there. But still you don’t have to worry about.
That restriction unless you’re running a business or something like that. Most of the countries like Europe are not adopting yet the full 6Ghz spectrum. They have only adopted an unlicensed use of 5925 – 6425 MHz range, which is half of what the USA and Canada have done.
The basic huge benefit of 6Ghz is that you’re going to have way more space not only have more channels. If you need for less interference, but also you can have bigger channels which going to have a lot more bandwidth.
Why Wifi 6 and 6E Are Better?
We learned that the WiFi 6 and 6E way better than WiFi 5, more than just having this extra new frequency. It’s a lot faster potentially, so you can have up to 3.5 *Gigabits* per WiFi spatial stream and you can have four of these.
Depending upon high-end the device is and therefore theoretically one WiFi router could have a throughput of like 14 *Gigabits* per second. The other big technological feature of WiFi 6 is something called OFDMA (Orthogonal Frequency Division Multiple Access).
This basically allows the router to split one channel into many subunits and broadcast to several devices at once.
And there are several more technical improvements, all designed to increase the efficiency of Wifi 6.
In particularly high density environments. That was really the main goal when they were creating WiFi when there’s a lot of density. So for both 6 and 6E it’s just with 6E you get that extra bandwidth.
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