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3GPP TS 25.331 version 12.3.0 Release 12<br />

2063<br />

ETSI TS 125 331 V12.3.0 (2014-10)<br />

2> move all entries from "cells recently triggered" to "cells triggered" in the corresponding variable<br />

TRIGGERED_1F_EVENT.<br />

1> if "Measurement quantity" is "pathloss" and Equation 3 below is fulfilled for a primary CPICH, or if<br />

"Measurement quantity" is "CPICH Ec/N0" or "CPICH RSCP", and Equation 4 below is fulfilled for a primary<br />

CPICH; or<br />

1> if a primary CPICH is no longer part of the cells allowed to trigger the event according to the "Triggering<br />

condition 1":<br />

2> if that primary CPICH is included in the "cells triggered" in the corresponding variable<br />

TRIGGERED_1F_EVENT:<br />

3> remove that primary CPICH from "cells triggered" in the corresponding variable<br />

TRIGGERED_1F_EVENT.<br />

Equation 1 (Triggering condition for pathloss)<br />

10⋅<br />

LogM<br />

Old+<br />

CIOOld≥T1 f<br />

+ H1<br />

f<br />

/2,<br />

Equation 2 (Triggering condition for all the other measurement quantities)<br />

10⋅<br />

LogMOld+<br />

CIOOld≤T1 f<br />

−H1<br />

f<br />

/2,<br />

Equation 3 (Leaving triggering condition for pathloss)<br />

10⋅<br />

LogMOld+<br />

CIOOld<<br />

T1 f<br />

−H1<br />

f<br />

/2,<br />

Equation 4 (Leaving triggering condition for all the other measurement quantities)<br />

10⋅<br />

LogM<br />

Old+<br />

CIOOld><br />

T1 f<br />

+ H1<br />

f<br />

/2,<br />

The variables in the formula are defined as follows:<br />

M Old is the measurement result of a cell that becomes worse than an absolute threshold<br />

CIO Old is the individual cell offset for the cell becoming worse than the absolute threshold. Otherwise it is equal to<br />

0.<br />

T 1f is an absolute threshold<br />

H 1f is the hysteresis parameter for the event 1f.<br />

If the measurement resul<strong>ts</strong> are pathloss or CPICH-Ec/No then M Old is expressed as ratios.<br />

If the measurement result is CPICH-RSCP then M Old is expressed in mW.<br />

ETSI

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