Section: 5.5.4.8 Event B1 (Inter RAT neighbour becomes better than threshold)
Content: The UE shall: 1> consider the entering condition for this event to be satisfied when condition B1-1, as specified below, is fulfilled; 1> consider the leaving condition for this event to be satisfied when condition B1-2, as specified below, is fulfilled. Inequality B1-1 (Entering condition) Mn + Ofn + Ocn – Hys > Thresh Inequality B1-2 (Leaving condition) Mn + Ofn + Ocn + Hys < Thresh The variables in the formula are defined as follows: Mn is the measurement result of the inter-RAT neighbour cell, not taking into account any offsets. Ofn is the measurement object specific offset of the frequency of the inter-RAT neighbour cell (i.e. eutra-Q-OffsetRange as defined within the measObjectEUTRA corresponding to the frequency of the neighbour inter-RAT cell, utra-FDD-Q-OffsetRange as defined within the measObjectUTRA-FDD corresponding to the frequency of the neighbour inter-RAT cell). Ocn is the cell specific offset of the inter-RAT neighbour cell (i.e. cellIndividualOffset as defined within the measObjectEUTRA corresponding to the neighbour inter-RAT cell, or cellIndividualOffset as defined within reportConfigInterRAT), and set to zero if not configured for the neighbour cell. Hys is the hysteresis parameter for this event (i.e. hysteresis as defined within reportConfigInterRAT for this event). Thresh is the threshold parameter for this event (i.e. b1-ThresholdEUTRA as defined within reportConfigInterRAT for this event, b1-ThresholdUTRA-FDD as defined for UTRA-FDD within reportConfigInterRAT for this event). Mn is expressed in dBm or in dB, depending on the measurement quantity of the inter-RAT neighbour cell. Ofn, Ocn, Hys are expressed in dB. Thresh is expressed in the same unit as Mn.