Polling improvements for radio link control

A network entity, comprising:

• one or more memories storing processor-executable code;
• and
• one or more processors coupled with the one or more memories and individually or collectively operable to execute the code to cause the network entity to:
• output a configuration message indicating a threshold time duration event associated with transmission of a polling message for requesting a status protocol data unit, the threshold time duration event corresponding to a time period following transmission of a data message without reception of the status protocol data unit, wherein the time period is based at least in part on an amount of time that has elapsed since arrival of the data message at a packet data convergence protocol layer without reception of an acknowledgement for the data message;
• and
• obtain a first polling message that indicates a remaining time corresponding to the threshold time duration event and that requests a first status protocol data unit comprising feedback for a first data message.

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

• receiving a configuration message indicating a threshold time duration event associated with transmission of a polling message for requesting a status protocol data unit, the threshold time duration event corresponding to a time period following transmission of a data message without reception of the status protocol data unit;
• transmitting a first data message;
• and
• transmitting, after a time duration has elapsed since transmission of the first data message without reception of a first status protocol data unit, a first polling message that indicates a remaining time corresponding to the threshold time duration event and that requests the first status protocol data unit comprising feedback for the first data message, wherein the time duration is based at least in part on an amount of time that has elapsed since arrival of the first data message at a packet data convergence protocol layer of the UE without reception of an acknowledgement for the first data message.