EAP660HD BSS Coloring OBSS PD Threshold
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@Fae and Tp-Link support team,
I am working on a proposal wherein I might need close to 90, 802,11AX APs. I have received few days ago, Qty 1 of EAP660HD and OC300 so I am playing with these.
I am assuming that BSS Coloring is on by default and that will help in deploying these APs in close proximity of each other and using 40MHz channels, in absence of DFS channels in North America, we then have only 4 of 40MHz channels. While background interference because of co-channel does not get mitigated by the BSS coloring, but at least clients don't have to wait for their turn and they can transmit simultaneously even when they see another transmission happening on the same channel.
https://community.tp-link.com/en/home/stories/detail/594
https://www.tp-link.com/ae/omada-wifi6/
The channel scheme shown in the link above for 40MHz channel shows channel 56& 104, which are not available in North America. So I assume, we can choose something like 36, 44, 149 and 157.
My understanding though is that OBSS PD threshold needs to be set to essentially have the clients and APs to known when to ignore the transmissions on co-channel. But there is no such option provided under OC300 / SD Controller. So I assume then that it is set to some fixed value and will like to know what is that value please? I am also concerned that rather than an inverted saucer type of coverage pattern from the EAP / AX APs, APs to AP energy seen coming at even 90 degrees from the bore sight of the AP pointed downward, is significant. And if the APs are deployed mostly in open areas, the co-channel energy seen by APs will be high and there should have been some settings provided to counter it for BSS coloring threshold purposes.
Can you let us know as to what is the fixed threshold used? Hopefully it is not -82dBm and is more like -78dBm for typical use case where my AP to AP separation is close to 60 feet?
In my limited tests with an AP placed 25 foot high facing down, two separate SSIDs (one for 2.4 set to medium power and 20MHz channel, and second for 5Ghz set to high power and 40MHz channel width), throughput at about 30 feet away from the AP boresight is better at 2.4, than at 5GHz SSID.
Another question I have is as to what all features have been implemented so far. Seems like documents talk about MU-MIMO and OFDMA, BSS Coloring, TWT, but can we confirm that both OFDMA as well as MU-MIMO are implemented?
Thanks
