How UE get to know all which frequency RSRP and RSRQ has to measure for HO?

Hi Experts,
How UE get to know all which frequency RSRP and RSRQ has to measure for HO?

Base station configured meas objects defining the frequency to measure.

During RRC connections reconfiguration, right?

Yes, correct.

on RRCconnectionreconfiguration message on measObjectId

sample message:

measObjectId = 2
| measObject
| t = 1
| u
| measObjectEUTRA
| tOptFlags
| cellsToRemoveListPresent = 0
| cellsToAddModListPresent = 0
| blackCellsToRemoveListPresent = 0
| blackCellsToAddModListPresent = 0
| cellForWhichToReportCGIPresent = 0
| verExt2Present = 0
| verExt3Present = 0
| verExt4Present = 0
| verExt5Present = 0
| verExt6Present = 0
| carrierFreq = 39050
| allowedMeasBandwidth = 5 : AllowedMeasBandwidth_Root_mbw100
| presenceAntennaPort1 = FALSE
| neighCellConfig
| numbits = 2
| data = 01(BIT)
| offsetFreq = 15 : Q_OffsetRange_Root_dB0

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