UE Behavior Relating to PSI-Based Packet Discarding

原文（中文）

This disclosure relates to techniques for changing protocol data unit (PDU) set processing behavior upon activation or deactivation of PDU set importance (PSI)-based discarding mechanism, particularly where an indication to activate/deactivate the PSI-based discarding mechanism is received when a PDU set has been partially processed. In some scenarios, the PSI-based discarding mechanism may be applied to the remainder of the PDUs in the partially processed PDU set. In other scenarios, the PSI-based discarding mechanism may not be applied until the next PDU set. In some scenarios, the decision of whether to apply the PSI-based discarding mechanism to the remainder of the PDUs in the partially processed PDU set may be based on additional conditions, e.g., involving the processing progress of the PDU set, the importance of the PDU set, other configuration details of the data radio bearer (DRB), buffer size, etc.