km/h. At reasonable noise and out-of-cluster interference levels at the RS positions, Kalman predictors can provide sufficient channel prediction accuracy for these “pedestrian” UEs. In our setting, the use of prediction instead of using outdated CSI almost triples the prediction horizon for which acceptable accuracy is obtained on average. The useful range e.g. corresponds to prediction horizons (feedback loop latencies) of 15 ms for 5km/h users at 2.66 GHz and to horizons of 5 ms for velocities of 57 km/h at 700 MHz.
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Sources: Grant Agreement, Grant Agreement