Channel that is dramatically increasing with Wi-Fi 6E, do you need to discuss it?

The merit of Wi-Fi 6e is the overwhelming number of channels

The advantages of the Wi-Fi 6e are that the overwhelming number of channels, which leads to a higher speed than before, increases.Especially in the previous Wi-Fi 6, the 160MHz channel was defined in specifications, but the opportunity to actually use it was very rare.With the 6GHz band, the opportunity to use the 160MHz channel will increase significantly.

The figure below is the explanation of this a little more detailed.There is no need for the explanation of Channel Width/Number Available.IEEE 802."AP Discovery" was added as a new function in 11ax, and Section 26.17.2.It will be added to 4 (still IEEE 802).Since 11ax-2021 is not eligible for GET 802 Program, the specifications have not been confirmed).

However, the side of Wi-Fi Alliance is also IEEE 802 for this AP Discovery..It seems that it did not wait for the standardization of 11ax to complete, and there will be no real harm, but Draft 5.It is discussed based on 0.

It is the AP Discovery, but in the past, IN-BAND, that is, the frequency band that I use (2).Only 4GHz/5GHz) could only do Discovery.This is complicated by the access point (AP) 2.There were often different BSSs in the 4GHz band and 5GHz band, and even in the 5GHz band, Low Band (W52 / W53) and HIGH BAND (W56) were separate BSS.

Then, when performing AP Discovery with a client, 2.It was necessary to explore 4GHz and 5GHz x 2 separately.This is In-Band AP Discovery.And for the 6GHz band, in addition to the 6GHz band when performing AP Discover..By performing BSS search at the same time in the 4GHz/5GHz band, the desired BSS was quickly found.This is Out-of-Band AP Discovery, in short, other than 6GHz bands (OUT-OF-BAND) are searched simultaneously.