Wi-Fi 6E and its Working
Introduction:
The Wi-Fi 6 (IEEE 802.11 ax) standard offers better capacity, efficiency, coverage, and performance. In terms of performance, Wi-Fi 6 compatible routers will be able to achieve 2.4 Gbps dual-stream (2x2) and 4.8 Gbps quad-stream (4x4) using the new 160 MHz channels. Provided, of course, that the user has compatible devices that are still very scarce. Until the arrival of Wi-Fi 6, wireless devices could only use 2.4 and 5 GHz frequency bands.
The 5 GHz band has been around since 1999 but it became popular in 2009 when the IEEE 802.11n standard was approved. About 12 years Wi-Fi 6E will introduce a new band that foresees the use of frequencies in 6 GHz. While the FCC USA has already given the green light, Europe is still working on approving the free use of 6 GHz frequencies (this band is also currently used for satellite communications).
Figure 1: Wi-Fi Technology in figures.
Wi-Fi 6E versus Wi-Fi 6:
Wi-Fi 6E introduces 6GHz frequencies that allow the use of many more channels (59 distributed in 1.2 GHz of the spectrum), including seven channels of 160 MHz and fourteen of 80 MHz. Wi-Fi 6E devices no longer need to use channels at 20, 40, and 80 MHz; Also, there are no short disconnections, well known to those who live near an airport, caused by DFS management. On the other side, Wi-Fi 6 must use channels of 160 MHz or at least 80 MHz to offer high performance during data transfer. On 5 GHz can take advantage of a maximum of two 160 MHz channels with the obligation for Wi-Fi device manufacturers to use the dynamic frequency selection (DFS) mechanism.
Figure 2: 5GHz Allocation Channel
It is necessary to ensure that no interference is generated with the activity of third parties. With many older Wi-Fi clients still using only 40MHz or 20MHz channels, today's wireless networks are continually forced to divide between compatibility and performance. So, for using the new 6 GHz band you will need new routers and devices: even the latest Wi-Fi 6 routers will not automatically support Wi-Fi 6E. Unless the manufacturer decides to introduce radio modules with integrated frequency support at 6 GHz. The new feature can be activated later with a simple firmware update, but at the moment we are not aware of manufacturers that are applying this approach. The economic value of Wi-Fi solutions in 2021 is estimated at $3.3 trillion, with an estimated 4.2 trillion Wi-Fi enabled devices shipped annually, 2.2 trillion on Wi-Fi 6, and 338 million Wi-Fi 6E.
Key Capabilities of Wi-Fi 6E:
The following are the key capabilities Wi-Fi 6E:
OFDMA - Orthogonal Frequency Division Multiple Access, which allows effective channel sharing for higher network throughput and lower latency.
MU-MIMO - Multi-Users, Multiple input multiple outputs allows the simultaneous transmission of large amounts of data and the support of a greater number of devices by the access points.
TWT (Target wake time) - allows to increase network efficiency and save energy.
1024-QAM - QAM stands for Quadrature Amplitude Modulation Mode - a modulation mode that allows efficient use of the spectrum to encode larger amounts of data. It is done by varying both the phase and the amplitude of the radio waves.
Transmission Beamforming - Beamforming allows to achieve even faster data transmission within a specific range.
Combining Standards - Combining these standards with a refined and certified device can allow performance of even 10 Gbps to be achieved, which with the speed standard of Wi-Fi 4 of 300 Mbps or Wi-Fi 5 of 1 Gbps can impress.
Benefits of Wi-Fi 6E:
HEALTH CARE: We see a trend of advancing care through telemedicine and mobile health (28% increase in telemedicine), creating a demand for a high-performance network in dense environments for guests, patients, staff and medical devices. These efficiencies will enable faster downloads of X-rays and MRIs, and a network 20 times faster than Wi-Fi 4.
WORKSPACE/MULTI-TENANT: Digital collaboration is essential in these verticals. Wi-Fi 6 will enable high-performance, high-capacity UHD video conferencing, prioritized cloud productivity optimized for business applications, and simultaneous UHD video conferencing 3x faster than Wi-Fi 4/5.
Wi-Fi 6E supports the demand for real-time participation and collaboration for connected devices. 77% of students say that digital technologies have helped them improve their grades.
RETAIL: We are currently seeing an increase in robotics and automation in all stores. This helps in eliminating the repetitive tasks and free up associates to do meaningful work. These additional devices create a burden for legacy networks and 6 GHz will allow more speed and bandwidth for task automation.
Advantages of Huawei's Wi-Fi 6E:
The advantage of Huawei Wi-Fi 6E is the fact, it has more open channels compared with any other type of Wi-Fi. The connection of more devices will be allowed without speed surfing. Another very notable advantage is, it is close to the Wi-Fi access point so users can use the 6 GHz band.
Figure 3: A dedicated filter differentiate 5 GHz and 6 GHz
A spectrum only accessible from this type of network, and that will allow us to navigate at a higher speed. The Huawei Wi-Fi 6E also features WPA3 security which is the best security protocol.
