US Patent 10470176 Protection for multi-user transmissions

Aspects of the present disclosure provide various mechanisms for protection of MU transmissions, such as UL MU MIMO and UL OFDMA. The mechanisms may allow for various NAV setting options for UL MU MIMO or UL OFDMA. Aspects of the present invention relate to a processing system configured to generate a first frame configured to trigger multiple transmissions from multiple devices, wherein the first frame has a duration field set to a value corresponding to a duration that covers at least the multiple transmissions, and an interface configured to output the frame for transmission.