Section: 4.2.4.1 In-session activity time for UE
Content: a) This measurement provides the aggregated active session time for UEs in a cell. b) CC c) Number of session seconds aggregated for UEs in a cell. For E-RABs with bursty flow, a UE is said to be “in session” if any E-RAB data on a Data Radio Bearer (UL or DL) has been transferred during the last 100 ms. For E-RABs with continuous flow, the E-RAB (and the UE) is always seen as being “in session” in the context of this measurement, and the session time is increased from the first data transmission on the E-RAB until 100 ms after the last data transmission on the E-RAB. d) Each measurement is an integer value. e) ERAB.SessionTimeUE f) EUtranCellFDD EUtranCellTDD g) Valid for packet switched traffic h) EPS i) This measurement is to support the Retainability KPI “E-RAB Retainability” defined in [13].