根据协议规范的要求： 1.设置触发时间 2.设置迟滞H2a的值
When event 2a is configured in the UE within a measurement, the UE shall:
1> when the measurement is initiated or resumed:
2> store the used frequency in the variable BEST_FREQUENCY_2A_EVENT.
1> if equation 1 below has been fulfilled for a time period indicated by "Time to trigger" for a frequency included
for that event and which is not stored in the variable BEST_FREQUENCY_2A_EVENT:
2> send a measurement report with IEs set as below:
3> set in "inter-frequency measurement event results":
4> "inter-frequency event identity" to "2a"; and
4> "Frequency info" to the frequency that triggered the event; and
4> "Non frequency related measurement event results" to the "
rimary CPICH info" of the best primary
CPICH for FDD cells or "
rimary CCPCH info" to the "Cells parameters ID" of the best primary
CCPCH for TDD cells on that frequency, not taking into account the cell individual offset.
3> if a non-used frequency triggered the measurement report:
4> include in IE "Inter-frequency measured results list" the measured results for the non-used frequency
that triggered the event, not taking into account the cell individual offset.
3> if the used frequency triggered the measurement report:
4> do not include the IE "Inter-frequency measured results list" in the measurement report.
3> set the IE "additional measured results" according to subclause 8.4.2, not taking into account the cell
individual offset;
2> update the variable BEST_BEST_FREQUENCY_2A_EVENT with that frequency.
Equation 1:
2 / 2a Best NotBest H Q Q + ≥
The variables in the formula are defined as follows
Not Best is the quality estimate of a frequency not stored the "best frequency" in the variable
BEST_FREQUENCY_2A_EVENT.
QBest is the quality estimate of the frequency stored in "best frequency" in the variable
BEST_FREQUENCY_2A_EVENT.
H2a is the hysteresis parameter for the event 2a in that measurement.
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