Section: 4.5.6 Cell Unavailable Time
Content: This measurement provides the length of time the cell has been unavailable for each cause. DER (n=1) This measurement is obtained by accumulating the time periods when the cell is unavailable per cause. The possible cause could be “manual intervention”, “fault” and “energy saving”. The sum of all supported per cause measurements shall equal the total time periods of cell unavailability. In case only a subset of per cause measurements is supported, a sum subcounter will be provided first. Each measurement is an integer value (in seconds). The number of measurements is equal to the number of supported causes plus a possible sum value identified by the .sum suffix. The measurement name has the form RRU.CellUnavailableTime.cause. Where cause identifies the cause resuling in cell unavailable. EUtranCellFDD EUtranCellTDD Valid for packet switched traffic EPS This measurement is to support KPI “E-UTRAN Cell Availability” defined in [13].