sfx2000
Part of the Furniture
If you are using MU-MIMO with more than one MU-MIMO device, please share your experience.
Has it helped? Has it hurt? Does it make any noticeable difference?
I'm thinking a lot of folks might be using MU, and not realizing it - many of the Mesh/Multiple Point platforms are supporting it between nodes, not out to the client STA's, but between them.
Orbi is a good example with one base and 2 or more satellites - I've seen the wireless PCAP's that suggest MU is in play, since I have a neighbor with an 3-node Orbi system in place.
This is captured from the Root/Primary/Base Orbi - see MU is there...
It's only on the backhaul 5GHz link, but it's there, at least in the captures - one can see the VHT NDP Announcement going out on Broadcast vs. being addressed to a specific STA - that's a sounding request for beamforming, and broadcast is a tell...
Makes sense actually - for certain traffic in a multiple point system like Orbi, it can help on the backhaul.
FWIW - saw hints in that same PCAP that suggests for the Orbi Backhaul - it may support 160MHz in the future - both 160 and 80+80, might be something in the driver code, but it's there - disabled at present (because DFS? - this was in the US)