Group feedback techniques in wireless systems

A method for wireless communications at a user equipment (UE), comprising:

• identifying a set of time-frequency resources for uplink transmissions;
• transmitting one or more uplink transmissions to a base station via the set of time-frequency resources;
• and
• monitoring for a group feedback message from the base station in response to the one or more uplink transmissions, wherein the group feedback message comprises an indication of whether an uplink transmission was received from a set of UEs including the UE.

An apparatus for wireless communications at a base station, comprising:

• a processor, memory coupled with the processor;
• and
• instructions stored in the memory and executable by the processor to cause the apparatus to:
• monitor a set of time-frequency resources for one or more uplink transmissions from a set of user equipment (UEs) in communication with the base station;
• generate a group feedback message for the set of UEs, wherein the group feedback message comprises an indication of whether an uplink transmission was received from each UE of the set of UEs based at least in part on the monitoring;
• and
• transmit the group feedback message to the set of UEs.

An apparatus for wireless communications at a user equipment (UE), comprising:

• a processor,
• memory coupled with the processor;
• and
• instructions stored in the memory and executable by the processor to cause the apparatus to:
• identify a set of time-frequency resources for uplink transmissions;
• transmit one or more uplink transmissions to a base station via the set of time-frequency resources;
• and
• monitor for a group feedback message from the base station in response to the one or more uplink transmissions, wherein the group feedback message comprises an indication of whether an uplink transmission was received from a set of UEs including the UE.