l corresponds to the PCell channel of the MCG (Master Cell Group) or to the PSCell channel of the SCG (Secondary Cell Group), depending on whether the MAC entity is associated with the MCG or SCG; Ofp is the specific offset linked to the frequency of the serving cell; - Ocp is the specific offset linked to the serving cell; - Off is the specific offset relative to this event. The A3 event is stopped when the measurement of the signal received from the neighboring cell becomes lower than that of the server cell: Mn + Ofn + Ocn + Hys < Mp + Ofp + Ocp + Off Example of use: the A3 event can be used for an intra- or inter-frequency handover procedure. 258 NG-RAN and 5G-NR 9.3.2.4. The A4 event The A4 event occurs when the measurement of the signal received from the neighboring cell becomes greater than that of a threshold: Mn+Ofn+Ocn-Hys>Thres. The A4 event is stopped when the measurement of the signal received from the neighboring cell becomes less than that of a threshold: Mn + Ofn + Ocn + Hys < Thres. Example of use: the A4 event can be used to trigger a handover procedure when the main cell is overloaded. 9.3.2.5. The A5 event The A5 event occurs when the measurement of the signal received from the SpCell becomes less than that of a first threshold and the measurement received from the neighboring cell becomes greater than that of a second threshold: Mp + Hys <Thresh Mn + Ofn + Ocn-Hys>Thres2. - The A5 event is stopped when the measurement of the signal received from the server cell becomes greater than that of a first threshold and the measurement received from the neighboring cell becomes less than that of a second threshold: Mp - Hys > Thresh ; Mn + Ofn + Ocn + Hys < Thres2. Example of use: the A5 event can be used to trigger an intra- or inter-frequency handover procedure. 9.3.2.6. The A6 event The A6 event occurs when the measurement of the signal received from the neighboring cell becomes greater than that of the signal received from the secondary channel of the serving cell (SCell): Mn + Ocn - Hys > Ms + Oc