Feedback design for network coding termination in broadcasting

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

• receiving, from a network node, a first set of network encoded packets based on a set of packets;
• attempting to decode the first set of network encoded packets;
• and
• transmitting, to the network node, feedback indicating a number of successfully received packets of the first set of network encoded packets resulting from attempting to decode the first set of network encoded packets.

An apparatus for wireless communications, 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 packets for a broadcast to a plurality of user equipments (UEs);
• transmit, to the plurality of UEs, a first set of network encoded packets based on the set of packets;
• receive feedback from each of one or more of the plurality of UEs, the feedback indicating a number of successfully received packets of the first set of network encoded packets at each of the one or more UEs;
• determine that the number of successfully received packets of the first set of network encoded packets fails to satisfy a decodability threshold value for at least one of the one or more UEs;
• and
• transmit, based at least in part on the determining, a second set of network encoded packets selected from the set of packets.

An apparatus for wireless communications, 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 network node, a first set of network encoded packets based on a set of packets;
• attempt to decode the first set of network encoded packets;
• and
• transmit, to the network node, feedback indicating a number of successfully received packets of the first set of network encoded packets resulting from the attempt to decode the first set of network encoded packets.