In an embodiment, to reduce uplink reporting, a user equipment (UE) keeps a count of the number of uplink protocol data control packet (PDCP) service data units (SDUs) in a measurement period and a number of those uplink PDCP SDUs that either exceeded a configured delay threshold or were discarded without being sent. These numbers are processed by the UE into a single reporting metric which the UE reports to the network for example in a MDT measurement report. The network configures the delay threshold, which may be specific for a given QoS, and may also configure the measurement period.