Section: 4.4.3.2 DL PDCP SDU drop rate
Content: This measurement provides the fraction of IP packets (PDCP SDUs) which are dropped on the downlink. Only user-plane traffic (DTCH) is considered. A dropped packet is one whose context is removed from the eNodeB/RN without any part of it having been transmitted on the air interface. Packets discarded during handover are excluded from the count. The measurement is split into subcounters per E-RAB QoS level (QCI). SI This measurement is obtained according to the definition in 3GPP TS 36.314[ Evolved Universal Terrestrial Radio Access  (E-UTRA); Layer 2 - Measurements ]  [11]. Separate counters are maintained for each QCI. In case only a subset of per QCI measurements is supported, a drop rate subcounter calculated across all QCIs will be provided first. Each measurement is an integer value representing the drop rate multiplied by 1E6. The number of measurements is equal to the number of QCIs plus a possible sum value identified by the .sum suffix. The measurement name has the form DRB.PdcpSduDropRateDl.QCI where QCI identifies the target E-RAB level quality of service class. EUtranCellFDD EUtranCellTDD Valid for packet switched traffic EPS