- Tram Ho
The new Wi-Fi 6 standard is in the beginning stage but Wi-Fi 7 has been developed for many years to come with the promise that the speed will exceed the threshold of wired connection. Wi-Fi 7 will have 30Gbps bandwidth, high speed for video streaming, stable connectivity as well as limiting bandwidth congestion. Wi-Fi 7 is expected to be standardized by 2024.
Wi-Fi 7 will go through 3 stages of development before being officially put into use. The first phase will be to improve the band of the new Wi-Fi 6 standard. Then in 2022, the speed will be pushed higher, especially for users to upload video data, such as phones and computers. And by 2024, a completely new standard will be launched, expected its name to be 802.11be (Wi-Fi 6 is 802.11ax).
The IEEE, the 802.11 developer, has begun researching the 802.11be standard, which is expected to reach 30Gbps. For comparison, in a real test, Wi-Fi 6 has the highest speed of 1.3Gbps. The goal of this organization will be to reduce the latency of wireless connections for tasks such as gaming.
In the first phase, Wi-Fi 6 will be widened the band compared to the current standard. As we all know, Wi-Fi works in two bands of 2.4GHz and 5GHz, but people will add one more band for Wi-Fi that is 6GHz. With 6GHz, engineers predict that speeds will quadruple when working or watching a football game in a stadium. To be compatible with the 6GHz band, devices must support Wi-Fi 6 or later, which also means that older devices will not be usable.
However, some telecommunication service providers have used part of the 6GHz resource. The solution is to work with those units to divide the frequency used through a technology called Automated Frequency Coordinator. In addition, the developer will have to convince the government to license 6GHz for Wi-Fi connections.
By 2022, there will be changes with the speed of Wi-Fi 6 through UL MU-MIMO technology (UL is uplink). We already know about MU-MIMO but UL MU-MIMO is new, but it’s basically a technology to speed up data uploads, we can imagine that streaming video via Wi-Fi will be fast and smooth. than. At the Wi-Fi festival held by Qualcomm, they demoed UL MU-MIMO by showing 10 phones to a girl drawing a picture. 3 units support UL, the video is not interrupted and 7 units without UL, the video will be stopped for a few seconds.
In the final stage, Wi-Fi 7 will be focused on improving speed and coverage. MIMO will be improved with a technology called coordinated MU-MIMO. Currently, engineers admit that it is difficult to develop this technology, but if successful, Wi-Fi will have impressive speed and coverage.
With Wi-Fi 6, access point makers were able to make devices with 8 antennas but 802.11be allowed up to 16 antennas. And all these antennas do not need to be on the same access point, thanks to mesh technology (mesh) that Wi-Fi now covers a wider range with multiple access points. You can have a system of 2 access points with 8 antennas each or 4 access points with 4 antennas each.
In addition, 802.11be has the ability to send data with different frequencies at the same time. For example, it can send data simultaneously at 2.4GHz and 5GHz at the same time, or all three in the future will have an additional 6GHz.
Source : TinhTe