Den næste generation af trådløse standarder er næsten her, og den hedder Wi-Fi 6. Har du hørt noget om denne version? Er^(Are) du spændt på at vide, hvilke nye funktioner denne version bringer? Det burde du være, fordi Wi-Fi 6 lover nogle funktioner, der aldrig er set før.

Da antallet af internetbrugere stiger eksponentielt, er der stor efterspørgsel efter hurtigere internet. Den nye generation af Wi-Fi er bygget til at imødekomme dette. Du vil blive overrasket over at vide, at Wi-Fi 6 har masser af andre funktioner end hastighedsboost.

Hvad er WiFi 6 (802.11 ax)?

Wi-Fi 6 har et teknisk navn – 802.11 ax. Det er efterfølgeren til version 802.11 ac. Det er bare dit almindelige Wi-Fi, men forbinder mere effektivt til internettet. Det forventes, at alle smartenheder i fremtiden kommer med Wi-Fi 6- kompatibilitet.

Etymologien^{(The etymology)}

Du spekulerer måske på, om denne version hedder Wi-Fi 6, hvad var de tidligere versioner? Var der også navne til dem? De tidligere versioner har også navne, men de var ikke brugervenlige. Derfor^(Therefore) var mange mennesker ikke klar over navnene. Med den seneste version er Wi-Fi Alliance dog flyttet til at give et enkelt brugervenligt navn.

Bemærk: De traditionelle navne givet til de forskellige versioner var som følger - 802.11n (2009), 802.11ac (2014) og 802.11ax (kommende). Nu bruges følgende versionsnavne til henholdsvis hver version – Wi-Fi 4, Wi-Fi 5 og Wi-Fi 6^{(Wi-Fi 4, Wi-Fi 5, and Wi-Fi 6)} .

Er Wi-Fi 6 her? Kan du begynde at bruge det?^{(Is Wi-Fi 6 here? Can you start using it?)}

For at høste fordelene ved Wi-Fi 6 fuldt ud, skal man have en Wi-Fi 6- router og Wi-Fi 6- kompatible enheder. Mærker som Cisco , Asus og TP-Link er allerede begyndt at udrulle Wi-Fi 6- routere. Wi-Fi 6- kompatible enheder mangler dog endnu at blive frigivet på det almindelige marked . Samsun Galaxy S10 og de nyeste versioner af iPhone er Wi-Fi 6- kompatible. Det forventes, at bærbare computere og andre smarte enheder snart også vil være Wi-Fi 6- kompatible. Hvis du kun køber en Wi-Fi 6router, kan du stadig tilslutte den til dine gamle enheder. Men du vil ikke observere nogen væsentlig ændring.

Køb af en Wi-Fi 6-enhed^{(Purchasing a Wi-Fi 6 device)}

Når Wi-Fi Alliance har lanceret sin certificeringsproces, vil du begynde at se 'Wi-Fi 6 certificeret'-logoet på nye enheder, der er Wi-Fi 6-kompatible. Indtil i dag havde vores enheder kun et 'Wi-Fi Certified'-logo. Man skulle spejde efter versionsnummeret i specifikationerne. I fremtiden skal du altid kigge efter 'Wi-Fi 6-certificeret'-logoet, mens du køber enheder til din Wi-Fi 6-router.

Lige nu er dette ikke en spilskiftende opdatering til nogen af ​​dine enheder. Derfor er det bedre ikke at begynde at købe nye enheder bare for at gøre dem kompatible med en Wi-Fi 6-router. I de kommende dage, når du begynder at udskifte dine gamle enheder, vil du begynde at medbringe Wi-Fi 6-certificerede enheder. Så det er ikke det værd at skynde sig og begynde at udskifte dine gamle enheder.

Anbefalet: ^{(Recommended:)} Hvad er en router, og hvordan virker den?^{(What is a Router and How does it work?)}

En ting, du dog kan købe lige nu, er en Wi-Fi 6- router. En fordel, du kan se i øjeblikket, er, at hvis du kan tilslutte et større antal enheder (Wi-Fi 5) til din nye router. For at høste alle andre fordele, vent på, at Wi-Fi 6- kompatible enheder kommer ind på markedet.

Attraktive funktioner i Wi-Fi 6^{(Attractive features of Wi-Fi 6 )}

Hvis topvirksomheder allerede har udgivet Wi-Fi 6-kompatible telefoner, og det anslås, at andre virksomheder vil følge trop, skal der være en lang række fordele. Her skal vi se, hvad de nye funktioner i den seneste version er.

1. Mere båndbredde^{(1. More bandwidth)}

Wi-Fi 6 har en bredere kanal. Wi - Fi-^(Wi-Fi) båndet, som var 80 MHz , fordobles til 160 MHz . Dette muliggør hurtigere forbindelser mellem routeren^(router) og din enhed. Med Wi-Fi 6 kan brugeren nemt downloade/uploade store filer, komfortabelt se 8k film. Alle smarte enheder i hjemmet kører problemfrit uden buffering.

2. Energieffektivitet^{(2. Energy efficiency)}

Funktionen Target Wake Time gør systemet energieffektivt. Enheder kan forhandle, hvor længe de forbliver vågne, og hvornår de skal sende/modtage data. Batterilevetiden for IoT-enheder^{(IoT devices)} og andre enheder med lavt strømforbrug forbedres i høj grad, når du øger enhedens søvntid.

3. Ikke flere konflikter med andre routere i nærheden^{(3. No more conflicts with other routers nearby)}

Dit trådløse signal lider på grund af interferens fra andre netværk i nærheden. Wi-Fi 6's Base Service Station ( BSS ) er farvet. Rammer er markeret, så routeren ignorerer tilstødende netværk. Med farve henviser vi til en værdi mellem 0 og 7, der er tildelt adgangspunkterne.

4. Stabil præstation i overfyldte områder^{(4. Stable performance in crowded areas)}

Vi har alle oplevet den faldende hastighed, når vi forsøger at få adgang til Wi-Fi på overfyldte steder. Det er tid til at sige farvel til dette problem! 8X8 MU-MIMO i Wi -Fi 6^{(Wi-Fi 6)} fungerer med uploads og downloads. Indtil den tidligere version fungerede MU-MIMO kun med downloads. Nu kan brugerne vælge mellem mere end 8 streams. Derfor, selvom flere brugere får adgang til routeren samtidigt, er der ikke noget væsentligt fald i båndbreddekvaliteten. Du kan streame, downloade og endda spille onlinespil med flere spillere uden at støde på problemer.

Hvordan håndterer systemet overbelastning?^{(How does the system handle congestion?)}

Her skal vi kende til en teknologi kaldet OFDMA – Orthogonal Frequency Division Multiple Access . Gennem dette kan Wi-Fi-adgangspunktet tale med flere enheder samtidigt. Wi-Fi-kanalen er opdelt i flere underkanaler. Det vil sige, at kanalen er opdelt i mindre frekvenssteder. Hver af disse små kanaler kaldes en ressourceenhed (RU)^{(resource unit (RU))} . Data beregnet til forskellige enheder bæres af underkanalerne. OFDMA forsøger at eliminere problemet med latenstid, som er almindeligt i nutidens Wi-Fi- scenarie.

OFDMA arbejder fleksibelt. Lad os sige, at der er 2 enheder - en pc og en telefon, der forbinder til kanalen. Routeren kan enten allokere 2 forskellige ressourceenheder til disse enheder eller dele de data, der kræves af hver enhed, mellem flere ressourceenheder.

Den mekanisme, hvorved BSS- farvningen virker, kaldes rumlig frekvensgenbrug. Dette hjælper også med at løse overbelastning på grund af flere enheder, der forbinder på samme tid.

Hvorfor denne funktion?^{(Why this feature?)}

Da Wi-Fi 5 blev udgivet, havde den gennemsnitlige amerikanske husstand omkring 5 Wi-Fi- enheder. I dag er det steget til næsten 9 enheder. Det anslås, at tallet kun kommer til at stige. Så det er klart, at der er et stigende behov for at rumme et stort antal Wi-Fi- enheder. Ellers vil routeren ikke være i stand til at tage belastningen. Det vil sænke farten hurtigt.

Husk, at hvis du tilslutter en enkelt Wi-Fi 6- enhed til en Wi-Fi 6- router, vil du muligvis ikke bemærke nogen ændring i hastigheden. Hovedformålet med Wi-Fi 6 er at give en stabil forbindelse til flere enheder samtidigt.

5. Bedre sikkerhed^{(5. Better security)}

Vi er alle godt klar over, at WPA3 var en kæmpe opdatering i dette årti. Med WPA3 har hackere svært ved konstant at gætte adgangskoden. Selvom det lykkes dem at knække adgangskoden, er de oplysninger, de får, måske ikke til stor nytte. Fra nu af er WPA3 valgfrit i alle Wi-Fi-enheder. Men for en Wi-Fi 6- enhed er WPA 3 et must for at opnå en Wi-Fi Alliance - certificering. Når certificeringsprogrammet er lanceret, forventes det, at der vil blive indført strengere sikkerhedsforanstaltninger. Derfor betyder opgradering til Wi-Fi 6 også, at du har bedre sikkerhed.

Læs også: ^{(Also Read:)} Hvordan finder jeg min routers IP-adresse?^{(How to Find My Router’s IP Address?)}

6. Reduceret latenstid^{(6. Reduced latency)}

Latency refererer til forsinkelsen i datatransmission. Mens latency er et problem i sig selv, forårsager det også andre problemer, såsom hyppig afbrydelse og længere indlæsningstid. Wi-Fi 6 pakker data til et signal mere effektivt end den tidligere version. Dermed er latensen nedbragt.

7. Større hastighed^{(7. Greater speed )}

Symbolet, der transmitterer data, er kendt som ortogonal frekvens-divisionsmultipleksing ( OFDM ). Data deles mellem underoperatører, så der er større hastighed (det er 11% hurtigere). På grund af dette udvides dækningen også. Alle enheder i dit hjem, uanset hvor de er placeret, vil modtage stærke signaler på grund af det brede dækningsområde.

Stråleformning^{(Beamforming)}

Beamforming er en proces, hvor routeren fokuserer signaler på en bestemt enhed, hvis den opdager, at enheden står over for problemer. Mens alle routere udfører beamforming, har en Wi-Fi 6-router et større udvalg af beamforming. På grund af denne forbedrede kapacitet vil der næppe være nogen døde zoner i dit hjem. Dette kombineret med ODFM gør det muligt for dig at oprette forbindelse til routeren fra hvor som helst i dit hus.

Hvor hurtigt er Wi-Fi 6?^{(How fast is Wi-Fi 6?)}

Wi-Fi 5 havde en hastighed på 3,5 Gbps . Wi-Fi 6 tager det op et par hak – den forventede teoretiske hastighed ligger på 9,6 Gbps . Det er almindeligt kendt, at teoretiske hastigheder ikke nås i praktisk brug. Typisk er downloadhastigheden 72 Mbps/ 1 % af den maksimale teoretiske hastighed. Da 9,6 Gbps kan opdeles på tværs af et sæt netværksenheder, stiger den potentielle hastighed for hver tilsluttet enhed.

En ting mere at huske med hensyn til hastigheden er, at den også afhænger af andre faktorer. I et miljø, hvor der er et massivt netværk af enheder, kan ændringen i hastighed let observeres. Inden for rammerne af dit hjem, med få enheder, vil det være svært at bemærke forskellen. Hastigheden fra din internetudbyder^{(Internet Service Provider)} ( ISP ) begrænser routeren i at fungere med dens bedste hastighed. Hvis din hastighed er langsom på grund af din internetudbyder^(ISP) , kan en Wi-Fi 6-router ikke løse det.

Resumé^(Summary)

• Wi-Fi 6 (802.11ax) er den næste generation af trådløse forbindelser.
• Det giver brugeren masser af fordele – bredere kanal, evnen til at understøtte stabil forbindelse til flere enheder samtidigt, høj hastighed, længere batterilevetid for enheder med lavt strømforbrug, forbedret sikkerhed, lav latenstid og ingen interferens med netværk i nærheden
• OFDMA og MU-MIMO er de to hovedteknologier, der bruges i Wi-Fi 6.
• For at opleve alle fordelene skal brugeren have begge dele – en Wi-Fi 6-router og Wi-Fi 6-kompatible enheder. I øjeblikket er Samsung Galaxy S10 og de seneste versioner af iPhone de eneste enheder med understøttelse af Wi-Fi 6. Cisco , Asus , TP-Link , og et par andre virksomheder har frigivet Wi-Fi 6-routere.
• Fordele som f.eks. forandring er, at hastigheden kun kan mærkes, hvis du har et stort netværk af enheder. Med et lille antal enheder er det svært at observere ændringen.

What is Wi-Fi 6 (802.11 ax)? And how fast it really is?

The next generation of wireless standards is almost here, and it is called Wi-Fi 6. Have you heard anything about this version? Are you exсited to know what new featureѕ this verѕion brings? You ѕhould be because Wі-Fi 6 promisеs some never seen beforе featureѕ.

As the number of internet users increases exponentially, there is a high demand for faster internet. The new generation of Wi-Fi is built to cater to this. You will be surprised to know that Wi-Fi 6 has plenty of features other than speed boost.

What is WiFi 6 (802.11 ax)?

Wi-Fi 6 has a technical name – 802.11 ax. It is the successor of version 802.11 ac. It is just your regular Wi-Fi but connects more efficiently to the internet. It is expected that in the future, all smart devices will come with Wi-Fi 6 compatibility.

The etymology

You may wonder if this version is called Wi-Fi 6, what were the previous versions? Were there names for them as well? The previous versions have names too, but they were not user friendly. Therefore, many people were not aware of the names. With the latest version, however, the Wi-Fi Alliance has moved to give a simple user-friendly name.

Note: The traditional names given to the various versions were as follows – 802.11n (2009), 802.11ac (2014), and 802.11ax (upcoming). Now, the following version names are used for each version respectively – Wi-Fi 4, Wi-Fi 5, and Wi-Fi 6.

Is Wi-Fi 6 here? Can you start using it?

To reap the benefits of Wi-Fi 6 to the fullest, one must have a Wi-Fi 6 router and Wi-Fi 6 compatible devices. Brands such as Cisco, Asus, and TP-Link have already started rolling out Wi-Fi 6 routers. However, Wi-Fi 6 compatible devices are yet to be released in the mainstream market. The Samsun Galaxy S10 and the latest versions of the iPhone are Wi-Fi 6 compatible. It is expected that laptops and other smart devices will soon be Wi-Fi 6 compatible too. If you only purchase a Wi-Fi 6 router, you can still connect it to your old devices. But you will not observe any significant change.

Purchasing a Wi-Fi 6 device

After the Wi-Fi Alliance launches its certification process, you will start seeing the ‘Wi-Fi 6 certified’ logo on new devices that are Wi-Fi 6 compatible. Up until today, our devices only had a ‘Wi-Fi Certified’ logo. One had to scout for the version number in the specifications. In the future, always look for the ‘Wi-Fi 6 certified’ logo while buying devices for your Wi-Fi 6 router.

As of now, this is not a game-changing update for any of your devices. Therefore, it is better not to start buying new devices just to make them compatible with a Wi-Fi 6 router. In the coming days, when you start replacing your old devices, you will start bringing Wi-Fi 6 certified devices. So, it is not worth it, to rush up and start replacing your old devices.

Recommended: What is a Router and How does it work?

However, one thing you can buy right now is a Wi-Fi 6 router. One benefit that you can see currently is that if you can connect a greater number of devices (Wi-Fi 5) to your new router. To reap all other benefits, wait for Wi-Fi 6 compatible devices to make their way into the market.

Attractive features of Wi-Fi 6

If top companies have already releasedWi-Fi 6 compatible phones and it is estimated that other companies will follow suit, there has to be a good number of benefits. Here, we shall see what the new features of the latest version are.

1. More bandwidth

Wi-Fi 6 has a wider channel. The Wi-Fi band which was 80 MHz is doubled to 160 MHz. This enables faster connections between the router and your device. With Wi-Fi 6, the user can easily download/upload large files, comfortably watch 8k movies. All the smart devices in the home run smoothly without buffering.

2. Energy efficiency

The Target Wake Time feature makes the system energy efficient. Devices can negotiate for how long they stay awake and when to send/receive data. The battery life of IoT devices and other low-power devices is improved to a great extent when you increase device sleep time.

3. No more conflicts with other routers nearby

Your wireless signal suffers due to interference from other networks nearby. Wi-Fi 6’s Base Service Station (BSS) is colored. Frames are marked so that the router ignores neighboring networks. By color, we are referring to a value between 0 to 7 that is assigned to the access points.

4. Stable performance in crowded areas

We have all experienced the diminishing speed when we try to access Wi-Fi in crowded places. Its time to say goodbye to this issue! The 8X8 MU-MIMO in Wi-Fi 6 works with uploads and downloads. Until the previous version, the MU-MIMO worked only with downloads. Now, users can choose from more than 8 streams. Therefore, even if several users access the router simultaneously, there is no significant drop in bandwidth quality. You can stream, download, and even play multi-player online games without facing any issues.

How does the system handle congestion?

Here we need to know about a technology called OFDMA – Orthogonal Frequency Division Multiple Access. Through this, the Wi-Fi access point can talk with multiple devices simultaneously. The Wi-Fi channel is divided into several subchannels. That is, the channel is split into smaller frequency locations. Each of these small channels is called a resource unit (RU). Data intended for various devices are carried by the subchannels. OFDMA attempts to eliminate the problem of latency, which is common in today’s Wi-Fi scenario.

OFDMA works flexibly. Let us say there are 2 devices – a PC and a phone connecting to the channel. The router can either allocate 2 different resource units to these devices or divide the data required by each device between multiple resource units.

The mechanism by which the BSS coloring works is called spatial frequency reuse. This also helps in resolving congestion due to multiple devices connecting at the same time.

Why this feature?

When Wi-Fi 5 was released, the average US household had about 5 Wi-Fi devices. Today, it has increased to almost 9 devices. It is estimated that the number is only going to rise. So, it is clear that there is a growing need to accommodate a large number of Wi-Fi devices. Otherwise, the router will not be able to take the load. It will slow down quickly.

Keep in mind that, if you connect a single Wi-Fi 6 device to a Wi-Fi 6 router, you may not notice any change in speed. The main objective of Wi-Fi 6 is to provide a stable connection to multiple devices simultaneously.

5. Better security

We all are well aware that WPA3 was a huge update in this decade. With WPA3, hackers have a hard time continuously guessing the passwords. Even if they succeed in cracking the password, the information they get may not be of much use. As of now, WPA3 is optional in all Wi-Fi devices. But for a Wi-Fi 6 device, WPA 3 is a must, to obtain a Wi-Fi Alliance certification. Once the certification program is launched, it is expected that stricter security measures will be introduced. Therefore, upgrading to Wi-Fi 6 also means, you have better security.

Also Read: How to Find My Router’s IP Address?

6. Reduced latency

Latency refers to the delay in data transmission. While latency is an issue in itself, it also causes other problems such as frequent disconnection and greater load time. Wi-Fi 6 packages data into a signal more efficiently than the previous version. Thus, the latency is brought down.

7. Greater speed

The symbol that transmits data is knowns as orthogonal frequency-division multiplexing (OFDM). Data is divided among sub-carriers so that there is greater speed (it is 11% faster). Due to this, the coverage also widens. All the devices in your home, irrespective of where they are placed will receive strong signals due to the wide coverage area.

Beamforming

Beamforming is a process wherein the router focuses signals on a particular device if it finds that the device is facing issues. While all routers perform beamforming, a Wi-Fi 6 router has a greater range of beamforming. Due to this enhanced capability, there will hardly be any dead zones in your home. This coupled with ODFM makes it possible for you to connect to the router from anywhere in your house.

How fast is Wi-Fi 6?

Wi-Fi 5 had a speed of 3.5 Gbps. Wi-Fi 6 takes it up a few notches – the expected theoretical speed sits at 9.6 Gbps. It is common knowledge that theoretical speeds are not reached in practical use. Typically, the download speed is 72 Mbps/ 1% of the maximum theoretical speed. Since 9.6 Gbps can be split up across a set of networked devices, the potential speed for each connected device rises.

One more thing to remember regarding the speed is that it depends on other factors as well. In an environment where there is a massive network of devices, the change in speed can be observed easily. Within the confines of your home, with few devices, it will be hard to notice the difference. The speed from your Internet Service Provider (ISP) limits the router from functioning at its best speed. If your speed is slow because of your ISP, a Wi-Fi 6 router cannot fix that.

Summary

• Wi-Fi 6 (802.11ax) is the next generation of wireless connections.
• It provides plenty of benefits to the user – wider channel, the capability to support stable connection to multiple devices simultaneously, high speed, longer battery life for low-power devices, enhanced security, low latency, and no interference with nearby networks
• OFDMA and MU-MIMO are the two main technologies used in Wi-Fi 6.
• To experience all the benefits, the user must have both – a Wi-Fi 6 router and Wi-Fi 6 compatible devices. Currently, Samsung Galaxy S10 and the latest versions of the iPhone are the only devices with support for Wi-Fi 6. Cisco, Asus, TP-Link, and a few other companies have released Wi-Fi 6 routers.
• Benefits such as change are speed is noticeable only if you have a huge network of devices. With a small number of devices, it is hard to observe the change.

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