In case you haven't seen it; this is a good article explaining how Cisco Meraki's AutoRF system works to select channel and power levels.
https://wirelesslywired.com/2019/05/08/meraki-auto-rf-explained/
The Pachyderm in the Pa, as far as 5 GHz WiFi is concerned, is this requirement -
Aggregate spectrum usage is balanced across all available channels
This isn't aggregate spectrum usage by an individual or organisation, this isn't aggregate spectrum usage by WiFi users, this is aggregate spectrum usage by all spectrum users.
RESOLUTION COM6/22 (WRC-15)
considering
considering further
noting
ebis) that future Earth exploration-satellite service (active) systems are being planned to utilize up to 300 MHz of bandwidth within the 5 GHz EESS allocated frequency band to improve image resolution and provide improved applications to users;
recognizing
invites ITU-R
to conduct and complete the following in time for WRC-19:
invites administrations
to participate in the studies by submitting contributions to ITU‑R.
That is a big elephant.
Nice article, thanks for the share Philip!
@Uberseehandel This reminds me of a topic I heard in a podcast I listened to earlier this week. Apparently the new 5G mobile standard will use radio frequencies that coincide with the frequency of microwaves coming from water vapor thus causing issues for our weather prediction sattellites. Apparently no one thought of this when that particular band was sold to a provider. It's said to bring our weather prediction accuracy back 17%. I've read other articles that say the issues wouldn't be that big if the network gear keeps to regulations (like we do with DFS I guess). Not sure who's going to be right...
Interestingly, I put that into our OneNote system back in 2015/2016.
As I recall, part of the problem was that the WiFi industry had been less than cooperative when negotiating with other (mostly non-commercial) users of the 5 GHz spectrum. A lot of people felt somewhat bruised after the previous WRC conference, so at the 2015 conference the WiFi industry was blind-sided by a coordinated application for tighter controls of WiFi access to the 5 GHz portion of the spectrum.
To exacerbate matters, a new spectrum user has emerged - mobile WiFi (automobiles), or what the FCC calls connected and automated vehicles technology (CAV). I think it was over 20 years ago when I noticed as I flew in and out of Munich airport that BMW was carrying out CAV tests in the area.
It seems to me that the WiFi industry has pretty well ignored the implications of what is happening with demand for access to the 5 GHz spectrum and how it will be managed and shared amongst competing users and user groups. So, encouraged by the IEEE, the computer industry has continued to develop 5 GHz technology.
Eventually there will be a move to the 60 GHz band, some of us have been hoping for this for a long time. There have been concerns about range, but I believe the Koreans have laid those concerns to rest through their testing.
I also believe that we do not always help ourselves with our WiFi implementations. I am reminded of how the cuckoo lays its eggs in the nests of others, and we all know what happens when the egg hatches.