Apparatus, system and method of acknowledging a multi user (MU) multiple-input-multiple-output (MIMO) (MU-MIMO) transmission

A product comprising one or more computer-readable non-transitory storage media comprising computer-executable instructions operable to, when executed by at least one processor, enable the at least one processor to cause an Enhanced Directional Multi-Gigabit (DMG) (EDMG) MU Multiple-Input-Multiple-Output (MIMO) (MU-MIMO) initiator to:

• transmit an EDMG Multi User (MU) Physical Layer (PHY) Protocol Data Unit (PPDU) to a plurality of EDMG STAs, the EDMG MU PPDU comprising a plurality of Aggregate Medium Access Control (MAC) Protocol Data Units (A-MPDUs);
• set a time period after the EDMG MU PPDU, the time period comprising a sequence of a plurality of Block Acknowledgement (BA) periods for the plurality of EDMG STAs, a BA period of the plurality of BA periods configured for transmission of a BA from an EDMG STA of the plurality of EDMG STAs, wherein the instructions, when executed, cause the EDMG MU-MIMO initiator to provide to the EDMG STA information for determining the BA period for transmission of the BA from the EDMG STA;
• and
• process one or more BAs from one or more EDMG STAs of the plurality of EDMG STAs, the one or more BAs received from the one or more EDMG STAs during one or more respective BA periods of the plurality of BA periods.

An apparatus comprising:

• means for causing an Enhanced Directional Multi-Gigabit (DMG) (EDMG) MU Multiple-Input-Multiple-Output (MIMO) (MU-MIMO) initiator to transmit an EDMG Multi User (MU) Physical Layer (PHY) Protocol Data Unit (PPDU) to a plurality of EDMG STAs, the EDMG MU PPDU comprising a plurality of Aggregate Medium Access Control (MAC) Protocol Data Units (A-MPDUs);
• means for setting a time period after the EDMG MU PPDU, the time period comprising a sequence of a plurality of Block Acknowledgement (BA) periods for the plurality of EDMG STAs, a BA period of the plurality of BA periods configured for transmission of a BA from an EDMG STA of the plurality of EDMG STAs;
• means for causing the EDMG MU-MIMO initiator to provide to the EDMG STA information for determining the BA period for transmission of the BA from the EDMG STA;
• and
• means for processing one or more BAs from one or more EDMG STAs of the plurality of EDMG STAs, the one or more BAs received from the one or more EDMG STAs during one or more respective BA periods of the plurality of BA periods.