Just how FAST is WiFi 6? #Helpful Post

Just how FAST is WiFi 6? #Helpful Post

every once in a while it feels like the

stars just align perfectly for me we

were literally right in the middle of

planning a Wi-Fi upgrade so that we

could test the brand new Wi-Fi six

capabilities of the Samsung Galaxy S 10

series when our buds over at Cisco

reached out to sponsor a video

explaining the benefits of Wi-Fi 6 so we

were like ah so yeah you know that

beastly new access point well I think to

really show off the benefit of Wi-Fi 6

we'd probably need a couple of those not

ok yeah so done so today's video then is

all about what Wi-Fi 6 is why you might

care and when you can expect widespread

adoption and we're also gonna take it

for a test drive with the shiny new

Galaxy S 10 plus so strap in cuz this is

gonna be fun

while our ApS are being installed let's

talk about what is the same physically

the hardware for Wi-Fi 6 is actually

quite similar so on the client side cell

phone and other device manufacturers can

continue to lean on the antenna design

experience that they've gained from

previous generations of Wi-Fi with even

the battery consumption of new Wi-Fi 6

chipsets only expected to increase

during times of continuous high speed

data transfer and even then that's only

because the data rate is higher so

nothing really changes there as for the

deployment that's basically the same

remember your best practices for AP

positioning run your Ethernet and wire

everything up to your network switch

because Wi-Fi 6 is backwards compatible

any legacy clients on the network won't

even know the difference now let's talk

about what is different which is

basically everything starting with even

the name Wi-Fi is undergoing a much

needed and surprisingly sensible

rebranding right now from 802.11

something something for those curious by

the way this generation was going to be

called 802.11 a x2 simple numbered

generations so AC becomes 5 and becomes

4 and so on and so forth with these

little icons that are designed to inform

consumers which generation is supported

by both their client and the AP that

they happen to be connected to next up

is the deployment yeah ok it's not quite

the same

so Wi-Fi 6 handles more clients and more

cluttered environments better so you

might not actually need as many APs

which is nice but watch out because

you're not gonna be saving a buck here

each of those access points could be

handling multiple gigabits of data per

second across literally hundreds of

clients so your commodity gigabit p OE

sweet sweet your commodity gigabit POS

which isn't gonna cut it anymore

so we're moving to this maroc ems 355 24

X 2 it's 24

multi gigabit ports could actually be

fully loaded with mr 55 access points

thanks to its beefy 740 watt power

supply and this thing is rated at up to

640 gigabit per second of switching

capacity and all of that is important

because even though it's rated at a mere

39 percent faster throughput so about

600 megabit per second versus 433 on a

single 80 megahertz 5 gigahertz channel

thanks to packing more data into each

payload Wi-Fi 6 has some truly

game-changing features when it comes to

multi client access that are going to

result in far higher overall data rates

and less waiting so first of all access

points can be configured with up to an 8

by 8 antenna configuration so that is 8

for sending and 8 for receiving and on

top of that Wi-Fi 6 supports up to 8

concurrent downlink streams with

multi-user MIMO that is a huge increase

or the for concurrent downlink streams

that was supported with Wi-Fi 5 so this

widening of the highway so to speak is a

big part of what's gonna make Gen 6 so

critical to making Wi-Fi usable in large

venues like sports arenas and crowded

concert halls but it's not even close to

the entire picture the next huge

innovation for large-scale deployments

was actually borrowed from cellular

networks with Wi-Fi 6 the band or the

frequency range that would have made up

a traditional channel can be split using

a technique called orthogonal

frequency-division multiple access or

OFDM a so you know how one of the best

pro tips for anyone living in an

apartment is to use a scanner to see

what channel your neighbors are on and

then manually switch over to a different

one well forget about it

ofd ma allows each band be it 20 40 or

all the way up to 160 megahertz to be

split up into multiple chunks as many as

78 sub channels and each one of those

can be allocated to a separate client

now obvious

to make all of this work the access

point needs to get a little bit smarter

fortunately it did with Wi-Fi 6 an AP

can negotiate what are called

deterministic connections allowing it to

exercise a great deal of control over

the connected clients and how they're

allowed to behave so first a client gets

dynamically assigned however many

channels or sub channels can be spared

at that moment then things get even

crazier each client gets a schedule for

when it's allowed to transmit and

receive data now hold on a second I know

that in the computing world scheduling a

data transmission usually means

increased latency which is one of the

biggest issues with Wi-Fi today but in

practice what this means is less

collision mitigation overhead which

means that there's actually less waiting

around think of it kind of like a

perfectly executed zipper merge on the

highway so it will actually reduce

latency that means yes friends gaming on

Wi-Fi without lag spikes could actually

be a thing with Wi-Fi 6 go figure

another fun feature of deterministic

connections is that they can be used to

save power so you know you're connected

smart light switch your Anna's on button

your asset tags etc etc etc right now

they waste a ton of power constantly

checking in with the network hey you got

anything for me no ok how about now got

anything for me no ok well with

scheduled check-ins called target

wake-up time your devices can check-in

far less frequently dramatically

increasing their battery life the

coolest thing about Wi-Fi 6 though is

not the techie specs as much as I

personally get really amped on that

stuff rather it's the different

experiences that it enables like have

you ever tried to stealthily have a

video chat at the back of a lecture hall

or upload a video to YouTube from a

large event it's a total mess and I mean

even something as stupid as breaking for

lunch during a conference can absolutely

crush your mobile experience as everyone

jumps on Facebook at exactly the same

time well thanks to everything I've

talked about already

and actually a whole host of other new

features including better beamforming

spatial frequency reuse and dynamic

fragmentation which makes better use of

the available spectrum oh man actually I

forgot to mention that to down the line

we're even getting more spectrum in the

five to six gigahertz range that's gonna

be sweet

anyway the point is with all of this new

tech this is not like an incremental

generational evolutionary improvement

and you could even argue that this is

the biggest fundamental change that

we've seen yet for Wi-Fi and I for one

and stoked but it's always a but isn't

there the one buzzkill today

is that while Wi-Fi 6 is backwards

compatible you're gonna have to wait a

little while longer for the kick ass

experience that I've talked about here

because the promises of Wi-Fi 6 can only

be fully realized once client devices

with support for these new features

start to overtake their legacy

counterparts now the good news is that

at least they're already showing up so

all that's left in this video then is to

take our S 10 plus for a quick test

drive now one problem I have is that we

don't have a couple hundred of these so

I'm not going to be able to do like a

mega and client test or anything like

that but we can at least make sure that

everything's working properly here in

the office with a quick speed test so

without further ado let's see just how

fast we can make this go so the first

thing that I noticed just connecting to

our new access points is that remember

those little icons I told you guys about

it's right there at the top of the phone

Wi-Fi 6 so you'll know that you're

negotiating your link using the correct

generation of the technology so that's

pretty cool then for us remember we just

upgraded to 10 gigabit internet so as

long as we can find a speed test server

that can take the burn then all we got

to do is run a simple speed test here

and have a look at what kind of speeds

that we can get and I have never seen

anything like this that upload speed 800

megabit per second guys not only is this

Wi-Fi

this is Wi-Fi on a mobile device this is

a 2 by 2 antenna configuration that is

real-world speeds of like 800 we're

getting close to if I actually plug the

USB type-c dongle into my phone and

plugged it into the wall that's

absolutely incredible and like I said

before it is absolutely just the tip of

the iceberg so thanks for watching guys

thanks to Cisco for sponsoring this

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