Either way, I think the question is how does it differentiate the chains from 
each other?   Whether it's 4, 8, or 16, it's still multiple signals on the same 
channel at the same time.  What's the idiot's version of how that works?




________________________________
From: AF <[email protected]> on behalf of castarritt 
<[email protected]>
Sent: Wednesday, October 8, 2025 4:50 PM
To: AnimalFarm Microwave Users Group <[email protected]>
Subject: Re: [AFMUG] 16 spatial streams how is that possible

In my testing, 2x2 vs 4x4 with mu-mimo on the AP was almost unnoticeable for 
home wifi (with the exception of a few clients that had 4x4 radios), and some 
papers/blogs I've seen showed mu-mimo does very little in enterprise wifi as 
well.    Massive MIMO in mobile and fixed wireless is a different story, big 
gains there.  We routinely got 2-3x mu-mimo gain with 450M.  16x16 mu-mimo in 
wifi might be useful for something like a stadium or other wide open space with 
dense clients, but not much else IMO.

On Wed, Oct 8, 2025 at 3:18 PM Rory Conaway 
<[email protected]<mailto:[email protected]>> wrote:
It means the AP is handling 16 streams at once, not the clients.  I've seen 
designs up to 64 with 32 2x2 streams.  Massive MIMO is a good strategy.

Rory

On Wed, Oct 8, 2025 at 12:38 PM castarritt 
<[email protected]<mailto:[email protected]>> wrote:
I thought they dropped 16x and left it at 8x like wifi6.  Pretty much every 
client device is still going to be 2x2, or maybe you could call it 4x4 if 
running MLO in two bands.

On Wed, Oct 8, 2025 at 2:08 PM Ken Hohhof 
<[email protected]<mailto:[email protected]>> wrote:

In the list of supposed advantages of WiFi7 over WiFi6, I see 16 spatial 
streams vs 8.



Can someone explain to me the mechanism for using 16 spatial streams in a 
typical WiFi environment?  I have a hard time wrapping my head around anything 
more than 2 using V/H or dual slant polarization.



I was willing to believe that maybe you could get more (like maybe 4 spatial 
streams) due to reflections off furniture and stuff, and that somehow signal 
processing could magically separate out the streams (even though I don’t 
understand how it does that).  But 8 or 16 just sounds like crazy talk.



Maybe it’s like the rich people houses with 16 car garages, if I were rich 
people I would understand?

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