Downlink control information indication for multicast and unicast transmissions

A method for wireless communications at a network entity, comprising:

• transmitting a codepoint configuration for a point to multipoint transmission scheme that indicates a mapping between a plurality of codepoint indexes, a plurality of multicast configurations, and a plurality of unicast configurations, wherein the mapping indicates at least one codepoint index of the plurality of codepoint indexes is associated with both of one of the plurality of multicast configurations and one of the plurality of unicast configurations;
• transmitting a control message that schedules a shared data channel transmission for a UE group comprising a plurality of UEs, the control message comprising a first codepoint index of the plurality of codepoint indexes indicating a transmission configuration that is one of a first multicast configuration of the plurality of multicast configurations or a first unicast configuration of the plurality of unicast configurations;
• and
• transmitting the shared data channel transmission in accordance with the indicated transmission configuration.

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

• a processor;
• and
• a memory coupled with the processor, with instructions stored in the memory and executable by the processor to cause the apparatus to:
• receive a codepoint configuration for a point to multipoint transmission scheme that indicates a mapping between a plurality of codepoint indexes, a plurality of multicast configurations, and a plurality of unicast configurations, wherein the mapping indicates at least one codepoint index of the plurality of codepoint indexes is associated with both of one of the plurality of multicast configurations and one of the plurality of unicast configurations;
• receive a control message that schedules a shared data channel transmission for at least one UE of a UE group comprising a plurality of UEs including the first UE, the control message comprising a first codepoint index of the plurality of codepoint indexes;
• identify a transmission configuration that is one of a first multicast configuration of the plurality of multicast configurations or a first unicast configuration of the plurality of unicast configurations to apply for receiving the shared data channel transmission based at least in part on the mapping and the first codepoint index;
• and
• receive the shared data channel transmission in accordance with the identified transmission configuration.

An apparatus for wireless communications at a network entity, comprising:

• a processor;
• and
• a memory coupled with the processor, with instructions stored in the memory and executable by the processor to cause the apparatus to:
• transmit a codepoint configuration for a point to multipoint transmission scheme that indicates a mapping between a plurality of codepoint indexes, a plurality of multicast configurations, and a plurality of unicast configurations, wherein the mapping indicates at least one codepoint index of the plurality of codepoint indexes is associated with both of one of the plurality of multicast configurations and one of the plurality of unicast configurations;
• transmit a control message that schedules a shared data channel transmission for a UE group comprising a plurality of UEs, the control message comprising a first codepoint index of the plurality of codepoint indexes indicating a transmission configuration that is one of a first multicast configuration of the plurality of multicast configurations or a first unicast configuration of the plurality of unicast configurations;
• and
• transmit the shared data channel transmission in accordance with the indicated transmission configuration.