Huawei and Wi-Fi 6: sixth generation

Huawei and Wi-Fi 6: sixth generation
Attempts to improve the efficiency of wireless Wi-Fi networks have been made since the first universal standards of the 802.11 series were issued. But the first truly fast and effective standard, it seems, can only really be called Wi-Fi 6, which is now gaining popularity. and as usual, Huawei, one of the world's largest manufacturers of equipment for wireless networks, has its own vision of how ideal Wi-Fi 6 devices should look and work.

The first 802.11 wireless networks could only provide 11 Mbit/s, and even then these 11 megabits were shared between all devices in the network segment. The 802.11 g standard raised this figure to 54 Mbit/s, at the same time the first timid attempts to look beyond the 100 Mbit/s mark began, however, which did not lead to the appearance of a single standard. Meanwhile, the popularity of Wi-Fi grew and the 2.4 GHz band gradually became tight, so in 2009, with the advent of the 802.11 n standard, an attempt was made to fully master the 5 GHz band, but only in 2013, with the ratification of 802.11 ac, this frequency segment began to be used massively. This generation of Wi-Fi is called the fifth.

The fifth generation made it possible to achieve or even surpass the performance of wired Gigabit Ethernet, but to ensure really high speeds, the use of 4×4 transceiver-antenna formulas and MU-MIMO principles was required. And only the sixth generation of Wi-Fi became what could be called a truly effective wireless network: even at CES 2018, prototypes of 802.11 ax devices capable of developing up to 11 Gbit/s were demonstrated. This is reflected even in the terms: Wi-Fi 6E and HEW (High-Efficiency Wireless), in both cases the letter E means "efficiency".

The final version of the IEEE 802.11 ax specifications was submitted last year, and approved in September this year. However, Despite the unification and standardization, the leading manufacturers of wireless equipment have their own vision of Wi-Fi 6. among them, such a giant as Huawei stands out. The company is well aware that the it world has changed a lot since the introduction of 802.11 ac and old technologies are not well suited for a number of scenarios, such as the active use of augmented reality, modern video surveillance systems with high-resolution cameras, or the organization of large networks in trade and industry.

In addition, Huawei actively takes into account the fact that many companies, applications and services have migrated or are migrating to the cloud today, and reliable and stable communication is essential for high-quality work with cloud systems. So in their systems and devices Wi-Fi 6 Huawei implements the principle of "100 Mbps to everyone" — is, of course, not even 1 Gbit/s, wired GbE, but in modern networks more and more, and not even all of them do have the option of a wired connection, e.g., various IoT devices, such as "smart tags" in large supermarkets.
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