Retransmission optimization mechanisms

A method for wireless communications at a second network node, comprising:

• transmitting one or more signals, each of the one or more signals transmitted as an initial transmission and as one or more retransmissions in accordance with a first redundancy version index order which specifies respective redundancy version indices for each of the initial transmission and the one or more retransmissions;
• receiving a request that the second network node transmit future signals in accordance with a second redundancy version index order;
• and
• transmitting the future signals in accordance with the second redundancy version index order.

An apparatus for wireless communications at a first network node 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 second network node, one or more signals, each of the one or more signals received as an initial transmission and as one or more retransmissions in accordance with a first redundancy version index order which specifies respective redundancy version indices for each of the initial transmission and the one or more retransmissions;
• monitor the initial transmission and the one or more retransmissions for each of the one or more signals to determine an error metric associated with each redundancy version index of the first redundancy version index order;
• and
• transmit a request for the second network node to transmit future signals in accordance with a second redundancy version index order based at least in part on the monitoring.

An apparatus for wireless communications at a second network node, 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 one or more signals, each of the one or more signals transmitted as an initial transmission and as one or more retransmissions in accordance with a first redundancy version index order which specifies respective redundancy version indices for each of the initial transmission and the one or more retransmissions;
• receive a request that the second network node transmit future signals in accordance with a second redundancy version index order;
• and
• transmit the future signals in accordance with the second redundancy version index order.