Enhancements to application data unit metadata

An apparatus for wireless communication at an access 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 apparatus to:
• output control information that identifies criteria to use for determining a delivery status of a protocol data unit set that comprises a plurality of protocol data units, wherein the protocol data unit set is associated with an application layer of the access network entity, and wherein the control information comprises a flow type field that indicates that a protocol data unit of the plurality of protocol data units belongs to a service flow;
• and
• output the plurality of protocol data units in the protocol data unit set with the control information, wherein the delivery status of the protocol data unit set is based at least in part on a threshold indicated by the criteria.

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

• receiving, from a core network entity via an access network entity, control information that identifies criteria to use for determining a delivery status of a protocol data unit set that comprises a plurality of protocol data units, wherein the protocol data unit set is associated with an application layer of the UE, and wherein the control information comprises a flow type field that indicates that a protocol data unit of the plurality of protocol data units belongs to a service flow;
• receiving at least a portion of the protocol data unit set with the control information;
• and
• determining the delivery status of the protocol data unit set based at least in part on a value associated with the received portion of the protocol data unit set and a threshold indicated by the criteria, the delivery status indicating whether the protocol data unit set was successfully delivered to the UE.