Feedback for multicast transmissions while in an inactive or idle mode

A method for wireless communications at a base station, comprising:

• transmitting, to a user equipment (UE), one or more configurations for multicast feedback for use by the UE while in an inactive mode or an idle mode;
• transmitting one or more multicast transmissions via a set of time frequency resources configured for multicast communications;
• and
• monitoring, based at least in part on transmitting the one or more multicast transmissions, for one or more multicast feedback messages from the UE in accordance with the one or more configurations;
• and
• receiving a reception status report from the UE that indicates a ratio of a quantity of physical control channels received by the UE for the multicast transmissions to a total quantity of physical control channels for the multicast transmissions scheduled over a set of monitoring occasions, the reception status report being received on a set of uplink resources associated with the ratio.

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:
• receive, from a base station, one or more configurations for the UE to use, while in an inactive mode or an idle mode, to provide feedback associated with multicast transmissions from the base station;
• monitor, while in the inactive mode or the idle mode, a set of time frequency resources configured for the multicast transmissions from the base station;
• transmit, while in the inactive mode or the idle mode, one or more multicast feedback messages in accordance with the one or more configurations based at least in part on the monitoring;
• and
• transmit a reception status report that indicates a ratio of a quantity of received physical control channels for the multicast transmissions to a total quantity of physical control channels for the multicast transmissions scheduled over a set of monitoring occasions, the reception status report being transmitted on a set of uplink resources associated with the ratio.

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:
• transmit, to a user equipment (UE), one or more configurations for multicast feedback by the UE in an inactive mode or an idle mode;
• transmit one or more multicast transmissions via a set of time frequency resources configured for multicast communications;
• and
• monitor, based at least in part on transmitting the one or more multicast transmissions, for one or more multicast feedback messages from the UE in accordance with the one or more configurations;
• and
• receive a reception status report from the UE that indicates a ratio of a quantity of physical control channels received by the UE for the multicast transmissions to a total quantity of physical control channels for the multicast transmissions scheduled over a set of monitoring occasions, the reception status report being received on a set of uplink resources associated with the ratio.