Uplink transmission power calibration method and associated apparatus and systems

The present application discloses a species uplink transmission power calibration method and associated apparatus and systems, uplink transmission power calibration method comprising: a power calibration of the access point transmits the received frame, the frame including power calibration target received power and current transmission power; The target received power and a current transmission power of uplink transmission power adjustment, so the access point receive power over different sub-carriers or sub-channels is within a predetermined difference range. OFDMA uplink communication can be solved during the uplink transmission power received at different sites vary greatly, the problem is difficult to receive all the uplink data properly, and solves a different station receives the uplink user input multiple output (MU-MIMO) system when the uplink transmission power difference is large, a large inter-user interference problems.