NR SA KPI overview providing quantifying EPS fallback, NSA to/from SA transition and SA handover events. EPS fallback events are itemized per NR RRC state at call initiation and accompanied with QCI1 bearer and user setup time calculation. NSA to/from SA event count is complemented with RAT interruption time and time spent in SA/NSA calculations. SA handover events are separated per frequency transition type and supplemented with handover interruption time calculation.