METHOD AND ARCHITECTURE FOR OPTIMIZING MULTI-USER MULTI-INPUT-MULTI-OUTPUT (MU-MIMO) TRANSMISSIONS GROUPING

A transmitter of a wireless Access Point (AP) comprising a circuitry configured to conduct an iterative prolonged process and an iterative instantaneous process for optimizing streams grouping to enhance MU-MIMO transmissions throughput. The prolonged process comprises receiving beamforming reports corresponding to streams transmitted simultaneously by the AP to one or more stations, computing an Effective SINR (ESINR) for each stream with respect to other stream(s) based on the beamforming reports and updating a grouping table associated with each stream to include one or more groups presenting best ESINR for the respective stream. The instantaneous process comprising computing the ESINR for one or more of the streams using most recent beamforming report(s) received and updating one or more of the groups in the grouping table to include one or more additional streams presenting best ESINR. For each MU-MIMO transmission, the transmitter selects a best ESINR group from the updated grouping table.