Changing steering matrix corresponding to mu-mimo group to allow access points transmit on wireless communication channel simultaneously

A network device, comprising at least:

• a memory;
• a processor executing instructions from the memory to:
• receive a plurality of beamforming feedback frames from a plurality of client devices in a wireless local area network (WLAN);
• receive a particular beamforming feedback frame from a first access point in the WLAN;
• select a first subset of the plurality of client devices and the first access point as members of a multi-user multiple input, multiple output (MU-MIMO) group;
• change a steering matrix corresponding to the MU-MIMO group based on both the received plurality of beamforming feedback frames and the particular beamforming feedback frame to allow the network device and the first access point transmit on a particular wireless communication channel simultaneously without interfering each other.

A non-transitory machine-readable storage medium encoded with instructions executable by at least one processor of a first access point, the machine-readable storage medium comprising instructions to:

• receive a plurality of beamforming feedback frames from a plurality of client devices in a wireless local area network (WLAN);
• in response to not receiving a particular beamforming feedback frame from a second access point in the WLAN subsequent to the first access point transmitting a first null data packet (NDP) frame, calculating the particular beamforming feedback frame based on a second NDP frame received from the second access point;
• select a first subset of the plurality of client devices and the second access point as members of a multi-user multiple input, multiple output (MU-MIMO) group;
• and
• change a steering matrix corresponding to the MU-MIMO group based on both the plurality of beamforming feedback frames and the particular beamforming feedback frame to allow the first access point and the second access point transmit on a particular wireless communication channel simultaneously without interfering each other.