Wireless Fidelity | WiFi 6

 Wireless Fidelity | WiFi 6

5G and WiFi 6 are different technologies, but in 2020 they will form the perfect combination of ultra-fast connections. With this wifi download speeds are now three times faster. But more importantly, the data rate can be scaled quickly to more devices. On the one hand, it is expected that the number of devices connected via Wireless Fidelity will increase from 10 to 50 over the next few years. On the other hand, you can improve the quality and speed of the data consumed, such as watching streaming video in high resolution. Designed to operate in the existing 2.4 GHz and 5 GHz spectrum.  

WiFi is an indispensable role in the lives of modern people. Now if you go to someone else’s house to be a guest, you will definitely ask a question: “What is the WiFi password in your home?” ” At the tip of last year, the WiFi Alliance proclaimed the modification of WiFi The word and sophisticated word not exist.” WiFi 6 (that is, the original 802.11.ax) will be the name of the next generation WiFi standard. The 802.11a naming format used since 1999 has officially withdrawn from the historical stage.  In addition to the new name, WiFi 6 has brought many benefits, and not just a simple speed increase. WiFi 6 will enter people’s lives this year, and your next mobile phone or laptop may support WiFi 6, so you may wish to learn about it in advance.  

How fast is WiFi 6?  

The simple answer is: 9.6 Gbps. As a comparison, the speed of WiFi 5 is 3.5 Gbps, which shows that the improvement is not small. But the more realistic answer is: this speed is only the theoretical maximum, and it is difficult to achieve in real life. Even if it can be achieved, it is estimated that your internet speed is not up to standard. However, the fact that the speed of WiFi 6 has increased is still important. Because the network speed of 9.6 Gbps may not be exclusive to a single device, it can be distributed to all devices in the entire network, which means that the potential speed of each device will be faster.  

The most important thing about WiFi 6 is not to speed improvement  

Arguably, the most important improvement of WiFi 6 is to reduce congestion and allow more devices to connect to the network. WiFi 6 uses a technology called MU-MIMO (multi-user multi-input multi-output) to achieve this, which allows the router to communicate with multiple devices at the same time instead of communicating sequentially. Currently, MU-MIMO allows the router to communicate with four devices at a time, and WiFi 6 will allow communication with up to 8 devices. WiFi 6 also utilizes other technologies, such as OFDMA (Orthogonal Frequency Division Multiple Access) and transmit beamforming, both of which improve efficiency and network capacity, respectively. In short, WiFi 6 allows the router to communicate with more devices at the same time, and also allows the router to send data to multiple devices in the same broadcast.   The purpose of all these technologies is to solve the problem of network congestion caused by a large number of devices connected to the network. Solving this problem is very important to modern life. According to a survey, when Wi-Fi 5 first came out, American households had an average of about five Wi-Fi devices. At present, American households have an average of 9 WiFi devices, and some companies predict that this number will reach 50 within a few years. In addition, Wi-Fi 6 will provide a better experience in places with a large number of people. The WiFi Alliance specifically mentions retailers, apartment buildings, transportation hubs and sports venues.  

WiFi 6 can also improve battery life  

Another new technology in WiFi 6 allows devices to plan communications with routers, reducing the time required to keep the antenna powered to transmit and search for signals, which means reducing battery consumption and improving battery life. This technology is called Target Wake Time, which allows the router to schedule communication time with the device. But this technology is not helpful for all devices. For example, your laptop needs continuous Internet access, so it is unlikely to benefit too much from this feature (perhaps it will have a greater impact when going to sleep). This technology is more beneficial for small, low-power devices that occasionally need to update their status, such as sensors or smart homes that monitor gas leaks at home.  

WiFi 6 also means better security

Last year, WiFi technology received the largest security update in a decade and began to support the new security protocol WPA3. WPA3 makes it more difficult for hackers to crack passwords by constantly guessing, and even if hackers manage to obtain passwords, it will make some The data becomes less useful. Current devices and routers can support WPA3, but it is not mandatory. However, Wi-Fi 6 devices must use WPA3 in order to obtain WiFi Alliance certification, so once the certification program is launched, most WiFi 6 devices will have stronger security.  

How can I use Wi-Fi 6?  

To use Wi-Fi 6, you must purchase new equipment. Because Wi-Fi technology updates depend on new hardware, not just software, so you need to buy new phones, laptops, etc., and of course, there is a router that supports Wi-Fi 6 to use the new version of Wi-Fi.    

Do you need Wi-Fi 6?  

Upgrading to the new WiFi 6 standard is certainly a good thing, but obviously not everyone needs it. If your network speed is far from gigabit, then Wi-Fi 6 may not mean much to you. In addition, even in an environment with a large number of networked devices, such as shopping malls, offices, or public buildings, to fully utilize the advantages of Wi-Fi 6, you must ensure that all devices on the network support the standard. If your current router only supports Wi-Fi 4 (802.11n) or earlier standards, you may wish to upgrade it to support Wi-Fi 5 first. It may be a better choice to consider when the Wi-Fi 6 router is reduced in price.  

WIFI Usage Scenario 6

The purpose of 802.11ax is to:
High-density public environment: airport, train, auditorium, shopping center, stadium …
5G, Internet of Things (IoT),
In homes that heavily use the Internet,
Offices that use bandwidth-intensive applications (such as VoIP).
The 802.11ax design allows you to browse and download data from mobile devices faster.

WIFI 6 offers

Network congestion: 

As more and more devices connect to the Internet, your router must be able to support multiple connections at the same time. Wi-Fi 6 is designed to provide wider coverage and coverage, so connecting in a “high-density environment” will improve the user experience.

High Speed: 

This standard allows speeds of 11 Gbps on more than two devices at a time, with a maximum speed of 5 Gbps on a single device.

Performance: 

Wi-Fi 6 reduces battery cost with a feature called Target Wake Up Time (TWT). This is two-thirds of the current battery consumption of mobile devices. This feature keeps the device inactive until it’s time to send data. The programming method negotiated with APs.

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