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What is the difference between the Wi-Fi standards "6" and "6E"?Crisp commentary

When I was searching the web to replace the Wi-Fi device, the word "Wi-Fi 6 compatible" was found. I was relieved because there was an explanation of the latest standard, but I found the word "Wi-Fi 6E" on another site. I'm wondering how 6 and 6E are different. [Image] Wi-Fi 6 logo Wi-Fi 6E is the latest Wi-Fi standard announced by the Wi-Fi Alliance in January 2020. Wi-Fi 6 was announced in January 2019, so it's clear that 6E is newer. However, 6E is not a successor to 6, but is positioned as Extended. Both technically comply with the same standard (IEEE 802.11ax), but the generation names are used differently for "6E" and "6" depending on the corresponding frequency. The frequency bands supported by Wi-Fi 6 are the 2.4GHz band and the 5GHz band. On the other hand, Wi-Fi 6E supports 6GHz band in addition to 2.4GHz band and 5GHz band. In other words, whether or not you can use the 6GHz band is the decisive difference between "6E" and "6". Although there is no difference in performance as Wi-Fi 6 such as theoretical maximum speed (9.6 Gbps) and low latency, Wi-Fi 6E can benefit from faster communication speed and stabilization using the 6 GHz band. .. As of January 2022, the use of the 6GHz band by individuals is not permitted in Japan, but according to the "Radio Policy Council Report (Draft) in the Age of Digital Transformation" compiled by the Ministry of Internal Affairs and Communications in 2nd year of Reiwa. , 1GHz width will be newly allocated to "IoT / wireless LAN system" by 2025. At the timing of Wi-Fi 6E or the next "Wi-Fi 7", it seems that the 6GHz band will be available in Japan as well.

Shinobu at sea