[Make-wifi-fast] Wi-Fi 6 - how many of our assumptions does it violate?

[Dave Taht]

What I had pushed for in multiple private meetings with multiple
providers was for wifi 6 to expose a per station API to the host AP
cpu. This
neatly rids the host AP of as much need to grok MU ( I really like the
potential in MU) or per station tx rates while still giving the
smarter AP CPU the ability to schedule stations, FQ packets and manage
bufferbloat. A per station API makes gang-scheduling more feasible in
MU-MIMO. There were many other suggestions made along the way
(privately) like having a transmit or receive is almost done
interrupt, "prepare!", and I hope some of those ideas were adopted.

I'd hoped of course to attract some actual paid work on wifi 6, but so
far have only a teeny grant to look over the intel ax200 mess.

On Fri, Jan 24, 2020 at 12:49 PM Bob McMahon via Make-wifi-fast
<make-wifi-fast at lists.bufferbloat.net> wrote:
>
>
>
>
> ---------- Forwarded message ----------
> From: Bob McMahon <bob.mcmahon at broadcom.com>
> To: Rich Brown <richb.hanover at gmail.com>
> Cc: Make-Wifi-fast <make-wifi-fast at lists.bufferbloat.net>
> Bcc:
> Date: Fri, 24 Jan 2020 12:49:36 -0800
> Subject: Re: [Make-wifi-fast] Wi-Fi 6 - how many of our assumptions does it violate?
> I haven't thought this out but 802.11ax is very different per things like AP based scheduling of transmits (trigger frames), assigning to RU (sub carriers), and per STA tx power control.  I think the implementations of these is outside the standard as well.  Those writing traffic schedulers will mostly likely be impacted.
>
> Bob
>
> On Fri, Jan 24, 2020 at 6:06 AM Rich Brown <richb.hanover at gmail.com> wrote:
>>
>> I saw this overview of the now-in-testing Wi-Fi 6 at https://www.howtogeek.com/368332/wi-fi-6-what%E2%80%99s-different-and-why-it-matters/
>>
>> Its multiple MIMO streams and maybe talking to multiple devices at a time seem as if they might be outside the assumptions we use.
>>
>>
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>
>
>
>
> ---------- Forwarded message ----------
> From: Bob McMahon via Make-wifi-fast <make-wifi-fast at lists.bufferbloat.net>
> To: Rich Brown <richb.hanover at gmail.com>
> Cc: Make-Wifi-fast <make-wifi-fast at lists.bufferbloat.net>
> Bcc:
> Date: Fri, 24 Jan 2020 12:49:53 -0800 (PST)
> Subject: Re: [Make-wifi-fast] Wi-Fi 6 - how many of our assumptions does it violate?
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-- 
Make Music, Not War

Dave Täht
CTO, TekLibre, LLC
http://www.teklibre.com
Tel: 1-831-435-0729