Section: 4.2.5.1 Average Number of simultaneous E-RABs.
Content: a) This measurement provides the average number of simultaneous E-RABs. The measurement is split into subcounters per E-RAB QoS level (QCI). b) SI. c) This measurement is obtained by sampling at a pre-defined interval, the number of simultaneous E-RABs and then taking the arithmetic mean. The measurement is split into subcounters per QCI, and the possible QCIs are included in TS 36.413[ Evolved Universal Terrestrial Radio Access Network (E-UTRAN); S1 Application Protocol (S1AP) ]  [9]. In case only a subset of per QCI measurements is supported, a sum subcounter will be provided first. d) Each measurement is an integer value. The number of measurements is equal to the number of QCIs plus a possible sum value identified by the .sum suffix. e) The measurement name has the form ERAB.UsageNbrMean.QCI where QCI identifies the E-RAB level quality of service class. f) EUtranCellFDD EUtranCellTDD g) Valid for packet switching. h) EPS