Power saving mechanism for MU-MIMO transmissions

A non-transitory computer-readable storage medium, comprising a plurality of instructions, that when executed, enable processing circuitry to:

• generate a first multiple-user PHY protocol data unit (MU-PPDU) to communicate in a downlink (DL) multiple-user multiple-input and multiple-output (MU-MIMO) communication to initiate a reverse direction (RD) communication, the MU-PPDU comprising aggregated frames, the aggregated frames comprising a frame to request a block acknowledgement and a quality of service (QoS) frame comprising a grant for a RD communication;
• cause transmission of the first MU-PPDU to a second station (STA);
• process the reverse direction communication including a first block acknowledgement and data in response to the first MU-PPDU;
• and
• cause transmission of a second block acknowledgement to acknowledge the reverse direction communication.

An apparatus, comprising:

• a memory of a first station (STA);
• and
• processing circuitry of the first STA coupled to the memory, the processing circuitry to:
• process a first multiple-user PHY protocol data unit (MU-PPDU) to communicate in a downlink (DL) multiple-user multiple-input and multiple-output (MU-MIMO) communication to initiate a reverse direction (RD) communication, wherein the MU-PPDU comprises aggregated frames, the aggregated frames comprising a frame to request a block acknowledgement and a quality of service (QoS) frame comprising a grant for a RD communication;
• cause transmission of the reverse direction communication including a first block acknowledgement and data in response to reception of the first MU-PPDU;
• and
• process a second block acknowledgement communicated to acknowledge the reverse direction communication.

A non-transitory computer-readable storage medium, comprising a plurality of instructions, that when executed, enable processing circuitry to:

• process a first multiple-user PHY protocol data unit (MU-PPDU) to communicate in a downlink (DL) multiple-user multiple-input and multiple-output (MU-MIMO) communication to initiate a reverse direction (RD) communication, wherein the MU-PPDU comprises aggregated frames, the aggregated frames comprising a frame to request a block acknowledgement and a quality of service (QoS) frame comprising a grant for a RD communication;
• cause transmission of the reverse direction communication including a first block acknowledgement and data in response to reception of the first MU-PPDU;
• and
• process a second block acknowledgement communicated to acknowledge the reverse direction communication.