Signaling support for multiple coding schemes to a single user device

A method for wireless communications at a first wireless device, comprising:

• transmitting control signaling to a second wireless device, the control signaling indicating a plurality of different modulation and coding schemes (MCSs) to be applied to at least one of a plurality of spatial streams or a plurality of resource units, and wherein the control signaling indicates that a respective MCS of the plurality of different MCSs is being applied to a respective spatial stream of the plurality of spatial streams or to a respective resource unit of the plurality of resource units;
• transmitting, in accordance with the control signaling, one or more first bits of a first service data unit to the second wireless device via a first spatial stream of the plurality of spatial streams or via a first resource unit of the plurality of resource units in accordance with a first MCS of the plurality of different MCSs;
• and
• transmitting, in accordance with the control signaling, one or more second bits, of the first service data unit or of a second service data unit, to the second wireless device via a second spatial stream of the plurality of spatial streams or via a second resource unit of the plurality of resource units in accordance with a second MCS of the plurality of different MCSs, wherein the first MCS is different from the second MCS.

A first wireless device, comprising:

• one or more memories storing processor-executable code;
• and
• one or more processors coupled with the one or more memories and individually or collectively operable to execute the code to cause the first wireless device to:
• transmit control signaling to a second wireless device, the control signaling indicating a plurality of quadrature amplitude modulations (QAMs) to be applied to a plurality of spatial streams, wherein the control signaling comprises an indicator that unequal QAM is applied across the plurality of spatial streams and indicates that a respective QAM of the plurality of QAMs is applied to a respective spatial stream of the plurality of spatial streams.