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Event A3 (Neighbour becomes offset better than serving) The UE shall: 1> consider the entering condition for this event to be satisfied w...

LTE RRC Event A3

Event A3 (Neighbour becomes offset better than serving)

The UE shall:
1> consider the entering condition for this event to be satisfied when condition A3-1, as specified below, is fulfilled;
1> consider the leaving condition for this event to be satisfied when condition A3-2, as specified below, is fulfilled;

Inequality A3-1 (Entering condition)
Mn+Ofn+Ocn - Hys > Ms + Ofs + Ocs + Off

Inequality A3-2 (Leaving condition)
Mn+Ofn+Ocn + Hys > Ms + Ofs + Ocs + Off

The variables in the formula are defined as follows:
Mn is the measurement result of the neighbouring cell, not taking into account any offsets.
Ofn is the frequency specific offset of the frequency of the neighbour cell (i.e. offsetFreq as defined within measObjectEUTRA corresponding to the frequency of the neighbour cell).
Ocn is the cell specific offset of the neighbour cell (i.e. cellIndividualOffset as defined within measObjectEUTRA corresponding to the frequency of the neighbour cell), and set to zero if not configured for the neighbour cell.
Ms is the measurement result of the serving cell, not taking into account any offsets.


Ofs is the frequency specific offset of the serving frequency (i.e. offsetFreq as defined within measObjectEUTRA corresponding to the serving frequency).
Ocs is the cell specific offset of the serving cell (i.e. cellIndividualOffset as defined within measObjectEUTRA corresponding to the serving frequency), and is set to zero if not configured for the serving cell.
Hys is the hysteresis parameter for this event (i.e. hysteresis as defined within reportConfigEUTRA for this event).
Off is the offset parameter for this event (i.e. a3-Offset as defined within reportConfigEUTRA for this event).
Mn, Ms are expressed in dBm in case of RSRP, or in dB in case of RSRQ.
Ofn, Ocn, Ofs, Ocs, Hys, Off are expressed in dB.

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