Autonomously triggering retransmission of data

A method performed at a user equipment (“UE”), the method comprising:

• generating, at the UE, a first medium access control (“MAC”) protocol data unit (“PDU”) for a first uplink grant associated with an initial transmission for a first hybrid automatic repeat request (“HARQ”) process, wherein the first uplink grant is a configured grant, wherein physical uplink shared channel (“PUSCH”) resources corresponding to the first uplink grant are not dynamically scheduled, and wherein the PUSCH resources are not granted by Downlink Control Information (“DCI”);
• initiating a configured grant timer associated with first HARQ process based on the first uplink grant;
• generating, at the UE, a second MAC PDU for a second uplink grant associated with a second HARQ process having overlapping physical uplink shared channel (“PUSCH”) resources with the first uplink grant, wherein the second uplink grant has a higher priority than the first uplink grant,
• transmitting, by the UE, the second MAC PDU according to the second uplink grant and not transmitting the first MAC PDU according to the first uplink grant;
• and
• stopping, by the UE, the configured grant timer associated with first HARQ process based on not transmitting the first MAC PDU according to the first uplink grant;
• and
• autonomously triggering, at the UE, a retransmission of the first MAC PDU for the first HARQ process, wherein autonomously triggering retransmission comprises triggering the retransmission using next available configured grant resources for the first HARQ process and without receiving network signaling for the retransmission.