Postby 4GMania » 05 Apr 2016, 06:04
The LTE Event A1 is triggered when the serving cell becomes better than a threshold. The event is triggered when the following condition is true:
MEAsserv - Hyst > Threshold
Triggering of the event is subsequently cancelled when the following condition is true:
MEAsserv + Hyst < Threshold
The hysteresis can be configured with a value between 0 and 30 dB.
The LTE Event A2 is triggered when the serving cell becomes worse than a threshold. The event is triggered when the following condition is true:
MEAsserv + Hyst < Threshold
Triggering of the event is subsequently cancelled when the following condition is true.
MEAsserv - Hyst > Threshold
The hysteresis can be configured with a value between 0 and 30 dB.
The LTE Event A3 is triggered when a neighbouring cell becomes better than the serving cell by an offset. The offset can be either positive or negative. The event is triggered when the following condition is true:
MEASneigh + Oneigh,freq + Oneigh,cell - Hyst > MEASserv + Oserv,freq + Oserv,cell + Offset
MEASneigh + Oneigh,freq + Oneigh,cell + Hyst < MEASserv + Oserv,freq + Oserv,cell + Offset
The LTE Event A4 is triggered when a neighbouring cell becomes better than a threshold.
MEASneigh + Oneigh,freq + Oneigh,cell - Hyst > Threshold
Triggering of the event is subsequently cancelled when the following condition is true:
MEASneigh + Oneigh,freq + Oneigh,cell + Hyst <Threshold
LTE Event A5 is triggered when the serving cell becomes worse than threshold-1 while a neighbouring cell becomes better than threshold-2. The event is triggered when both of the following consitions are true:
MEASserv + Hyst < Threshold-1
MEASneigh + Oneigh,freq + Oneigh,cell - Hyst >Threshold-2
Triggering of the event is subsequently cancelled when either of the following conditions are true:
MEASserv - Hyst > Threshold-1
MEASneigh + Oneigh,freq + Oneigh,cell + Hyst <Threshold-2
The LTE Event B1 is triggered when a neighbouring inter-system cell becomes better than a threshold. The event is triggered when the following condition is true:
MEASneigh + Oneigh,freq - Hyst > Threshold
Triggering of the event is subsequently cancelled when the following condition is true:
MEASneigh + Oneigh,freq + Hyst < Threshold
The LTE Event B2 is triggered when the serving cell becomes worse than threshold-1 while a neighbouring inter-system cell becomes better than threshold-2. The event is triggered when both of the following conditions are true:
MEASserv + Hyst < Threshold-1
MEASneigh + Oneigh,freq - Hyst > Threshold-2
Triggering of the event is subsequently cancelled when either of the following conditions are true:
MEASserv - Hyst > Threshold-1
MEASneigh + Oneigh,freq + Hyst < Threshold-2
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