Question: In accordance with Event I1 (Interference becomes higher than threshold) in Radio Resource Control (RRC), what condition must be met for a User Equipment (UE) to consider leaving the event, where Mi is the measured interference in dBm, Hys is the hysteresis parameter in dB, and Thresh is the threshold parameter in dBm?
Option 1: Mi + Hys > Thresh
Option 2: Mi + Hys < Thresh
Option 3: Mi - Hys > Thresh
Option 4: Mi - Hys < Thresh
Explanation: For a UE to consider leaving Event I1, the condition that must be satisfied is related to the measured interference (Mi) being below a certain threshold after accounting for hysteresis (Hys). Specifically, the leaving condition is met when Mi + Hys is less than Thresh. This ensures that once the interference level drops sufficiently below the threshold (by an amount equal to the hysteresis), the event is considered left, preventing rapid toggling between states near the threshold. This logic aligns with typical control system behaviors where hysteresis prevents oscillation around set points.