specviewer.org TS 38.331 ASN.1 index MeasObjectNR

MeasObjectNR

RRC IE · TS 38.331 v19.4.0 (2026-09) · clause 6.3.2

MeasObjectNR is an RRC information element of 3GPP TS 38.331 (38331), the 5G NR Radio Resource Control (RRC) protocol.

First seen v15.0.0 (2018-01) · Last changed v19.4.0 (2026-09)

Definition

The IE MeasObjectNR specifies information applicable for SS/PBCH block(s) intra/inter-frequency measurements and/or CSI-RS intra/inter-frequency measurements.

MeasObjectNR ::=                    SEQUENCE {
    ssbFrequency                        ARFCN-ValueNR                                                   OPTIONAL,   -- Cond SSBorAssociatedSSB
    ssbSubcarrierSpacing                SubcarrierSpacing                                               OPTIONAL,   -- Cond SSBorAssociatedSSB
    smtc1                               SSB-MTC                                                         OPTIONAL,   -- Cond SSBorAssociatedSSB
    smtc2                               SSB-MTC2                                                        OPTIONAL,   -- Cond IntraFreqConnected
    refFreqCSI-RS                       ARFCN-ValueNR                                                   OPTIONAL,   -- Cond CSI-RS
    referenceSignalConfig               ReferenceSignalConfig,
    absThreshSS-BlocksConsolidation     ThresholdNR                                                     OPTIONAL,   -- Need R
    absThreshCSI-RS-Consolidation       ThresholdNR                                                     OPTIONAL,   -- Need R
    nrofSS-BlocksToAverage              INTEGER (2..maxNrofSS-BlocksToAverage)                          OPTIONAL,   -- Need R
    nrofCSI-RS-ResourcesToAverage       INTEGER (2..maxNrofCSI-RS-ResourcesToAverage)                   OPTIONAL,   -- Need R
    quantityConfigIndex                 INTEGER (1..maxNrofQuantityConfig),
    offsetMO                            Q-OffsetRangeList,
    cellsToRemoveList                   PCI-List                                                        OPTIONAL,   -- Need N
    cellsToAddModList                   CellsToAddModList                                               OPTIONAL,   -- Need N
    excludedCellsToRemoveList           PCI-RangeIndexList                                              OPTIONAL,   -- Need N
    excludedCellsToAddModList           SEQUENCE (SIZE (1..maxNrofPCI-Ranges)) OF PCI-RangeElement      OPTIONAL,   -- Need N
    allowedCellsToRemoveList            PCI-RangeIndexList                                              OPTIONAL,   -- Need N
    allowedCellsToAddModList            SEQUENCE (SIZE (1..maxNrofPCI-Ranges)) OF PCI-RangeElement      OPTIONAL,   -- Need N
    ...,
    [[
        freqBandIndicatorNR                 FreqBandIndicatorNR                                             OPTIONAL,   -- Need R
        measCycleSCell                      ENUMERATED {sf160, sf256, sf320, sf512, sf640, sf1024, sf1280}  OPTIONAL    -- Need R
    ]],
    [[
        smtc3list-r16                       SSB-MTC3List-r16                                                OPTIONAL,   -- Need R
        rmtc-Config-r16                     SetupRelease {RMTC-Config-r16}                                  OPTIONAL,   -- Need M
        t312-r16                            SetupRelease { T312-r16 }                                       OPTIONAL    -- Need M
    ]],
    [[
        associatedMeasGapSSB-r17            MeasGapId-r17                                                   OPTIONAL,   -- Need R
        associatedMeasGapCSIRS-r17          MeasGapId-r17                                                   OPTIONAL,   -- Need R
        smtc4list-r17                       SSB-MTC4List-r17                                                OPTIONAL,   -- Need R
        measCyclePSCell-r17                 ENUMERATED {ms160, ms256, ms320, ms512, ms640, ms1024, ms1280, spare1}
        OPTIONAL,   -- Cond SCG
        cellsToAddModListExt-v1710          CellsToAddModListExt-v1710                                      OPTIONAL    -- Need N
    ]],
    [[
        associatedMeasGapSSB2-v1720         MeasGapId-r17                                               OPTIONAL, -- Cond AssociatedGapSSB
        associatedMeasGapCSIRS2-v1720       MeasGapId-r17                                               OPTIONAL  -- Cond AssociatedGapCSIRS
    ]],
    [[
        measSequence-r18                    MeasSequence-r18                                                OPTIONAL,   -- Need R
        cellsToAddModListExt-v1800          CellsToAddModListExt-v1800                                      OPTIONAL    -- Need N
    ]],
    [[
        smtc5list-r19                       SSB-MTC5List-r19                                                OPTIONAL,   -- Need R
        smtc6list-r19                       SSB-MTC6List-r19                                                OPTIONAL,   -- Need R
        smtc7-SSBAdapt-r19                  SSB-MTC-SSBAdapt-r19                                      OPTIONAL,   -- Cond IntraFreqConnected
        neighSCellMeasSkipping-r19          ENUMERATED { enabled }                                          OPTIONAL    -- Cond SCellMO
    ]],
    [[
        cellsToAddModListExt-v1930          CellsToAddModListExt-v1930                                      OPTIONAL    -- Need N
    ]],
    [[
        cellsToAddModListExt-v1940          CellsToAddModListExt-v1940                                      OPTIONAL    -- Need N
    ]]
}

Candidate change requests of v19.4.0

The CRs whose title or cover names this change, strong and likely matches only.

Fields (38)

FieldDescription
ssbFrequency
ARFCN-ValueNR · OPTIONAL Cond SSBorAssociatedSSB
since v15.1.0
Indicates the frequency of the SS associated to this MeasObjectNR . For operation with shared spectrum channel access, this field is a k30 kHz shift from the sync raster where k = 0,1,2, and so on if the reportType within the corresponding ReportConfigNR is set to reportCGI (see TS 38.211 [16], clause 7.4.3.1). Frequencies are considered to be on the sync raster if they are also identifiable with a GSCN value (see TS 38.101-1 [15], or TS 38.101-5 [75]).
ssbSubcarrierSpacing
SubcarrierSpacing · OPTIONAL Cond SSBorAssociatedSSB
since v15.2.0
Subcarrier spacing of SSB. Only the following values are applicable depending on the used frequency: FR1/FR1-NTN: 15 or 30 kHz FR2-1/FR2-NTN: 120 or 240 kHz FR2-2: 120, 480, or 960 kHz
smtc1
SSB-MTC · OPTIONAL Cond SSBorAssociatedSSB
since v15.2.0
Primary measurement timing configuration. (see clause 5.5.2.10).
smtc2
SSB-MTC2 · OPTIONAL Cond IntraFreqConnected
since v15.2.0
Secondary measurement timing configuration for SS corresponding to this MeasObjectNR with PCI listed in pci-List . For these SS, the periodicity is indicated by periodicity in smtc2 and the timing offset is equal to the offset indicated in periodicityAndOffset modulo periodicity . periodicity in smtc2 can only be set to a value strictly shorter than the periodicity indicated by periodicityAndOffset in smtc1 (e.g. if periodicityAndOffset indicates sf10 , periodicity can only be set of sf5 , if periodicityAndOffset indicates sf5 , smtc2 cannot be configured). This field is not configured together with smtc4list .
refFreqCSI-RS
ARFCN-ValueNR · OPTIONAL Cond CSI-RS
since v15.1.0
Point A which is used for mapping of CSI-RS to physical resources according to TS 38.211 [16] clause 7.4.1.5.3.
referenceSignalConfig
ReferenceSignalConfig
RS configuration for SS/PBCH block and CSI-RS.
absThreshSS-BlocksConsolidation
ThresholdNR · OPTIONAL Need R
Absolute threshold for the consolidation of measurement results per SS/PBCH block(s) from L1 filter(s). The field is used for the derivation of cell measurement results as described in 5.5.3.3 and the reporting of beam measurement information per SS/PBCH block index as described in 5.5.5.2.
absThreshCSI-RS-Consolidation
ThresholdNR · OPTIONAL Need R
Absolute threshold for the consolidation of measurement results per CSI-RS resource(s) from L1 filter(s). The field is used for the derivation of cell measurement results as described in 5.5.3.3 and the reporting of beam measurement information per CSI-RS resource as described in 5.5.5.2.
nrofSS-BlocksToAverage
INTEGER (2..maxNrofSS-BlocksToAverage) · OPTIONAL Need R
since v15.1.0
Indicates the maximum number of measurement results per beam based on SS/PBCH blocks to be averaged. The same value applies for each detected cell associated with this MeasObject .
nrofCSI-RS-ResourcesToAverage
INTEGER (2..maxNrofCSI-RS-ResourcesToAverage) · OPTIONAL Need R
since v15.1.0
Indicates the maximum number of measurement results per beam based on CSI-RS resources to be averaged. The same value applies for each detected cell associated with this MeasObjectNR .
quantityConfigIndex
INTEGER (1..maxNrofQuantityConfig)
Indicates the n- th element of quantityConfigNR-List provided in MeasConfig .
offsetMO
Q-OffsetRangeList
since v15.2.0
Offset values applicable to all measured cells with reference signal(s) indicated in this MeasObjectNR .
cellsToRemoveList
PCI-List · OPTIONAL Need N
List of cells to remove from the cell list.
cellsToAddModList
CellsToAddModList · OPTIONAL Need N
List of cells to add/modify in the cell list. If the network includes cellsToAddModListExt-v1710 , cellsToAddModListExt-v1800 , cellsToAddModListExt-v1930 , and/or cellsToAddModListExt-v1940 , it contains the same number of entries listed in the same order as in cellsToAddModList (i.e without suffix).
excludedCellsToRemoveList
PCI-RangeIndexList · OPTIONAL Need N
since v17.0.0
List of cells to remove from the exclude-list of cells.
excludedCellsToAddModList
SEQUENCE (SIZE (1..maxNrofPCI-Ranges)) OF PCI-RangeElement · OPTIONAL Need N
since v17.0.0
List of cells to add/modify in the exclude-list of cells. It applies only to SSB resources.
allowedCellsToRemoveList
PCI-RangeIndexList · OPTIONAL Need N
since v17.0.0
List of cells to remove from the allow-list of cells.
allowedCellsToAddModList
SEQUENCE (SIZE (1..maxNrofPCI-Ranges)) OF PCI-RangeElement · OPTIONAL Need N
since v17.0.0
List of cells to add/modify in the allow-list of cells. It applies only to SSB resources.
freqBandIndicatorNR
FreqBandIndicatorNR · OPTIONAL Need R
since v15.8.0
The frequency band in which the SSB and/or CSI-RS indicated in this MeasObjectNR are located and according to which the UE shall perform the RRM measurements. This field is always provided when the network configures measurements with this MeasObjectNR .
measCycleSCell
ENUMERATED {sf160, sf256, sf320, sf512, sf640, sf1024, sf1280} · OPTIONAL Need R
since v15.8.0
The parameter is used only when an SCell is configured on the frequency indicated by the measObjectNR and is in deactivated state, see TS 38.133 [14]. gNB configures the parameter whenever an SCell is configured on the frequency indicated by the measObjectNR , but the field may also be signalled when an SCell is not configured. Value sf160 corresponds to 160 sub-frames, value sf256 corresponds to 256 sub-frames and so on. This field is ignored for serving cell measurements during fast measurement window.
smtc3list-r16
SSB-MTC3List-r16 · OPTIONAL Need R
since v16.0.0
Measurement timing configuration list for SS corresponding to IAB-MT. This is used for the IAB-node's discovery of other IAB-nodes and the IAB-Donor-DUs.
rmtc-Config-r16
SetupRelease {RMTC-Config-r16} · OPTIONAL Need M
since v16.0.0
t312-r16
SetupRelease { T312-r16 } · OPTIONAL Need M
since v16.0.0
The value of timer T312. Value ms0 represents 0 ms, ms50 represents 50 ms and so on.
associatedMeasGapSSB-r17
MeasGapId-r17 · OPTIONAL Need R
since v17.0.0
Indicates the associated measurement gap for SSB measuring identified by ssb-ConfigMobility in this measurement object. When multiple MeasObjectNR with the same SSB frequency are configured, the network configures the same measurement gap ID in this field for each MeasObjectNR . If this field is absent, the associated measurement gap is the gap configured via gapFR1 , gapFR2 , or gapUE .
associatedMeasGapCSIRS-r17
MeasGapId-r17 · OPTIONAL Need R
since v17.0.0
Indicates the associated measurement gap for CSI-RS measuring identified by csi-rs-ResourceConfigMobility in this measurement object. If this field is absent, the associated measurement gap is the gap configured via gapFR1 , gapFR2 , or gapUE .
smtc4list-r17
SSB-MTC4List-r17 · OPTIONAL Need R
since v17.1.0
Measurement timing configuration list for NTN deployments, see clause 5.5.2.10. smtc5list is only configured to indicate SMTC(s) with an additional periodicity different from the one indicated in smtc1 .
measCyclePSCell-r17
ENUMERATED {ms160, ms256, ms320, ms512, ms640, ms1024, ms1280, spare1} · OPTIONAL Cond SCG
since v17.0.0
The parameter is used only when the PSCell is configured on the frequency indicated by the measObjectNR and the SCG is deactivated, see TS 38.133 [14]. The field may also be configured when the PSCell is not configured on that frequency. The network always configures measCyclePSCell for the measObjectNR associated with the PSCell if bfd-and-RLM is set to true and the SCG is deactivated. Value ms 160 corresponds to 160 ms, value ms256 corresponds to 256 ms and so on.
cellsToAddModListExt-v1710
CellsToAddModListExt-v1710 · OPTIONAL Need N
since v17.1.0
associatedMeasGapSSB2-v1720
MeasGapId-r17 · OPTIONAL Cond AssociatedGapSSB
since v17.2.0
Indicates the associated additional measurement gap for SSB measuring identified by ssb-ConfigMobility in this measurement object for NTN deployments. When multiple MeasObjectNR with the same SSB frequency are configured, the network configures the same measurement gap ID in this field for each MeasObjectNR . If this field is absent, the associated measurement gap is the gap indicated by associatedMeasGapSSB .
associatedMeasGapCSIRS2-v1720
MeasGapId-r17 · OPTIONAL Cond AssociatedGapCSIRS
since v17.2.0
measSequence-r18
MeasSequence-r18 · OPTIONAL Need R
since v18.0.0
Indicates the recommended sequence for intra/inter-RAT intra/inter-frequency measurement. Value 1 means the corresponding frequency is measured firstly. Value 2 means the corresponding frequency is measured secondly and so on. If more than one frequency is configured with the same value, it means no recommended sequence among these frequencies. If not provided, it means there is no recommended sequence for the corresponding frequency. This field is only configured for NR standalone or if the measObject is associated to the MCG.
cellsToAddModListExt-v1800
CellsToAddModListExt-v1800 · OPTIONAL Need N
since v18.0.0
smtc5list-r19
SSB-MTC5List-r19 · OPTIONAL Need R
since v19.0.0
Measurement timing configuration list for NTN deployments, see clause 5.5.2.10. smtc5list is only configured to indicate SMTC(s) with an additional periodicity different from the one indicated in smtc1 .
smtc6list-r19
SSB-MTC6List-r19 · OPTIONAL Need R
since v19.0.0
Measurement timing configuration list for OD-SSB, see clause 5.5.2.10.
smtc7-SSBAdapt-r19
SSB-MTC-SSBAdapt-r19 · OPTIONAL Cond IntraFreqConnected
since v19.0.0
Measurement timing configuration for adapted SSB transmission, see clause 5.5.2.10.
neighSCellMeasSkipping-r19
ENUMERATED { enabled } · OPTIONAL Cond SCellMO
since v19.0.0
If configured, the UE is not required to perform neighbour cell measurements on the frequency of this MeasObjectNR . This field is only applicable to UE supporting antennaArrayType-r18 and CA.
cellsToAddModListExt-v1930
CellsToAddModListExt-v1930 · OPTIONAL Need N
since v19.3.0
cellsToAddModListExt-v1940
CellsToAddModListExt-v1940 · OPTIONAL Need N
since v19.4.0

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Uses (30)

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