specviewer.org TS 38.331 ASN.1 index CSI-MeasConfig

CSI-MeasConfig

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

CSI-MeasConfig 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 v19.1.0 (2026-01)

Definition

The IE CSI-MeasConfig is used to configure CSI-RS (reference signals) belonging to the serving cell in which CSI-MeasConfig is included, channel state information reports to be transmitted on PUCCH on the serving cell in which CSI-MeasConfig is included and channel state information reports on PUSCH triggered by DCI received on the serving cell in which CSI-MeasConfig is included. See also TS 38.214 [19], clause 5.2. The IE CSI-MeasConfig is also used to configure logging of channel state information for the serving cell in which CSI-MeasConfig is included, as specified in 5.5c.3. The IE CSI-MeasConfig is also used to configure channel state information reports for one or more LTM candidate cells to be transmitted on PUCCH on the serving cell in which CSI-MeasConfig is included and channel state information reports on PUSCH triggered by DCI received on the serving cell in which CSI-MeasConfig is included.

CSI-MeasConfig ::=                  SEQUENCE {
    nzp-CSI-RS-ResourceToAddModList     SEQUENCE (SIZE (1..maxNrofNZP-CSI-RS-Resources)) OF NZP-CSI-RS-Resource   OPTIONAL, -- Need N
    nzp-CSI-RS-ResourceToReleaseList    SEQUENCE (SIZE (1..maxNrofNZP-CSI-RS-Resources)) OF NZP-CSI-RS-ResourceId OPTIONAL, -- Need N
    nzp-CSI-RS-ResourceSetToAddModList  SEQUENCE (SIZE (1..maxNrofNZP-CSI-RS-ResourceSets)) OF NZP-CSI-RS-ResourceSet
    OPTIONAL, -- Need N
    nzp-CSI-RS-ResourceSetToReleaseList SEQUENCE (SIZE (1..maxNrofNZP-CSI-RS-ResourceSets)) OF NZP-CSI-RS-ResourceSetId
    OPTIONAL, -- Need N
    csi-IM-ResourceToAddModList         SEQUENCE (SIZE (1..maxNrofCSI-IM-Resources)) OF CSI-IM-Resource           OPTIONAL, -- Need N
    csi-IM-ResourceToReleaseList        SEQUENCE (SIZE (1..maxNrofCSI-IM-Resources)) OF CSI-IM-ResourceId         OPTIONAL, -- Need N
    csi-IM-ResourceSetToAddModList      SEQUENCE (SIZE (1..maxNrofCSI-IM-ResourceSets)) OF CSI-IM-ResourceSet     OPTIONAL, -- Need N
    csi-IM-ResourceSetToReleaseList     SEQUENCE (SIZE (1..maxNrofCSI-IM-ResourceSets)) OF CSI-IM-ResourceSetId   OPTIONAL, -- Need N
    csi-SSB-ResourceSetToAddModList     SEQUENCE (SIZE (1..maxNrofCSI-SSB-ResourceSets)) OF CSI-SSB-ResourceSet   OPTIONAL, -- Need N
    csi-SSB-ResourceSetToReleaseList    SEQUENCE (SIZE (1..maxNrofCSI-SSB-ResourceSets)) OF CSI-SSB-ResourceSetId OPTIONAL, -- Need N
    csi-ResourceConfigToAddModList      SEQUENCE (SIZE (1..maxNrofCSI-ResourceConfigurations)) OF CSI-ResourceConfig
    OPTIONAL, -- Need N
    csi-ResourceConfigToReleaseList     SEQUENCE (SIZE (1..maxNrofCSI-ResourceConfigurations)) OF CSI-ResourceConfigId
    OPTIONAL, -- Need N
    csi-ReportConfigToAddModList        SEQUENCE (SIZE (1..maxNrofCSI-ReportConfigurations)) OF CSI-ReportConfig  OPTIONAL, -- Need N
    csi-ReportConfigToReleaseList       SEQUENCE (SIZE (1..maxNrofCSI-ReportConfigurations)) OF CSI-ReportConfigId
    OPTIONAL, -- Need N
    reportTriggerSize                   INTEGER (0..6)                                                            OPTIONAL, -- Need M
    aperiodicTriggerStateList           SetupRelease { CSI-AperiodicTriggerStateList }                            OPTIONAL, -- Need M
    semiPersistentOnPUSCH-TriggerStateList    SetupRelease { CSI-SemiPersistentOnPUSCH-TriggerStateList }         OPTIONAL, -- Need M
    ...,
    [[
        reportTriggerSizeDCI-0-2-r16        INTEGER (0..6)                                                            OPTIONAL -- Need R
    ]],
    [[
        sCellActivationRS-ConfigToAddModList-r17  SEQUENCE (SIZE (1..maxNrofSCellActRS-r17)) OF SCellActivationRS-Config-r17   OPTIONAL, -- Need N
        sCellActivationRS-ConfigToReleaseList-r17 SEQUENCE (SIZE (1..maxNrofSCellActRS-r17)) OF SCellActivationRS-ConfigId-r17 OPTIONAL  -- Need N
    ]],
    [[
        ltm-CSI-ReportConfigToAddModList-r18   SEQUENCE (SIZE (1..maxNrofLTM-CSI-ReportConfigurations-r18)) OF LTM-CSI-ReportConfig-r18
        OPTIONAL, -- Need N
        ltm-CSI-ReportConfigToReleaseList-r18  SEQUENCE (SIZE (1..maxNrofLTM-CSI-ReportConfigurations-r18)) OF LTM-CSI-ReportConfigId-r18
        OPTIONAL  -- Need N
    ]],
    [[
        cli-RSSI-MeasResourceToAddModList-r19        SEQUENCE (SIZE (1..maxNrofCLI-RSSI-MeasResources-r19)) OF CLI-RSSI-MeasResource-r19
        OPTIONAL, -- Need N
        cli-RSSI-MeasResourceToReleaseList-r19       SEQUENCE (SIZE (1..maxNrofCLI-RSSI-MeasResources-r19)) OF CLI-RSSI-MeasResourceId-r19
        OPTIONAL, -- Need N
        cli-RSSI-MeasResourceSetToAddModList-r19     SEQUENCE (SIZE (1..maxNrofCLI-RSSI-MeasResourceSets-r19)) OF CLI-RSSI-MeasResourceSet-r19
        OPTIONAL, -- Need N
        cli-RSSI-MeasResourceSetToReleaseList-r19    SEQUENCE (SIZE (1..maxNrofCLI-RSSI-MeasResourceSets-r19)) OF CLI-RSSI-MeasResourceSetId-r19
        OPTIONAL, -- Need N
        srs-RSRP-MeasResourceToAddModList-r19        SEQUENCE (SIZE (1..maxNrofSRS-RSRP-MeasResources-r19)) OF SRS-RSRP-MeasResource-r19
        OPTIONAL, -- Need N
        srs-RSRP-MeasResourceToReleaseList-r19       SEQUENCE (SIZE (1..maxNrofSRS-RSRP-MeasResources-r19)) OF SRS-RSRP-MeasResourceId-r19
        OPTIONAL, -- Need N
        srs-RSRP-MeasResourceSetToAddModList-r19     SEQUENCE (SIZE (1..maxNrofSRS-RSRP-MeasResourceSets-r19)) OF SRS-RSRP-MeasResourceSet-r19
        OPTIONAL, -- Need N
        srs-RSRP-MeasResourceSetToReleaseList-r19    SEQUENCE (SIZE (1..maxNrofSRS-RSRP-MeasResourceSets-r19)) OF SRS-RSRP-MeasResourceSetId-r19
        OPTIONAL, -- Need N
        csi-LoggedMeasurementConfigToAddModList-r19  SEQUENCE (SIZE (1..maxNrofLoggedMeasurementConfigurations-r19)) OF CSI-LoggedMeasurementConfig-r19
        OPTIONAL, -- Need N
        csi-LoggedMeasurementConfigToReleaseList-r19 SEQUENCE (SIZE (1..maxNrofLoggedMeasurementConfigurations-r19)) OF CSI-LoggedMeasurementConfigId-r19
        OPTIONAL  -- Need N
    ]]
}

Candidate change requests of v19.1.0

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

Fields (32)

FieldDescription
nzp-CSI-RS-ResourceToAddModList
SEQUENCE (SIZE (1..maxNrofNZP-CSI-RS-Resources)) OF NZP-CSI-RS-Resource · OPTIONAL Need N
since v15.1.0
Pool of NZP-CSI-RS-Resource which can be referred to from NZP-CSI-RS-ResourceSet .
nzp-CSI-RS-ResourceToReleaseList
SEQUENCE (SIZE (1..maxNrofNZP-CSI-RS-Resources)) OF NZP-CSI-RS-ResourceId · OPTIONAL Need N
since v15.1.0
nzp-CSI-RS-ResourceSetToAddModList
SEQUENCE (SIZE (1..maxNrofNZP-CSI-RS-ResourceSets)) OF NZP-CSI-RS-ResourceSet · OPTIONAL Need N
since v15.1.0
Pool of NZP-CSI-RS-ResourceSet which can be referred to from CSI-ResourceConfig or from MAC CEs.
nzp-CSI-RS-ResourceSetToReleaseList
SEQUENCE (SIZE (1..maxNrofNZP-CSI-RS-ResourceSets)) OF NZP-CSI-RS-ResourceSetId · OPTIONAL Need N
since v15.1.0
csi-IM-ResourceToAddModList
SEQUENCE (SIZE (1..maxNrofCSI-IM-Resources)) OF CSI-IM-Resource · OPTIONAL Need N
since v15.1.0
Pool of CSI-IM-Resource which can be referred to from CSI-IM-ResourceSet .
csi-IM-ResourceToReleaseList
SEQUENCE (SIZE (1..maxNrofCSI-IM-Resources)) OF CSI-IM-ResourceId · OPTIONAL Need N
since v15.1.0
csi-IM-ResourceSetToAddModList
SEQUENCE (SIZE (1..maxNrofCSI-IM-ResourceSets)) OF CSI-IM-ResourceSet · OPTIONAL Need N
since v15.1.0
Pool of CSI-IM-ResourceSet which can be referred to from CSI-ResourceConfig or from MAC CEs.
csi-IM-ResourceSetToReleaseList
SEQUENCE (SIZE (1..maxNrofCSI-IM-ResourceSets)) OF CSI-IM-ResourceSetId · OPTIONAL Need N
since v15.1.0
csi-SSB-ResourceSetToAddModList
SEQUENCE (SIZE (1..maxNrofCSI-SSB-ResourceSets)) OF CSI-SSB-ResourceSet · OPTIONAL Need N
since v15.1.0
Pool of CSI-SSB-ResourceSet which can be referred to from CSI-ResourceConfig .
csi-SSB-ResourceSetToReleaseList
SEQUENCE (SIZE (1..maxNrofCSI-SSB-ResourceSets)) OF CSI-SSB-ResourceSetId · OPTIONAL Need N
since v15.6.0
csi-ResourceConfigToAddModList
SEQUENCE (SIZE (1..maxNrofCSI-ResourceConfigurations)) OF CSI-ResourceConfig · OPTIONAL Need N
since v15.1.0
Configured CSI resource settings as specified in TS 38.214 [19] clause 5.2.1.2.
csi-ResourceConfigToReleaseList
SEQUENCE (SIZE (1..maxNrofCSI-ResourceConfigurations)) OF CSI-ResourceConfigId · OPTIONAL Need N
since v15.1.0
csi-ReportConfigToAddModList
SEQUENCE (SIZE (1..maxNrofCSI-ReportConfigurations)) OF CSI-ReportConfig · OPTIONAL Need N
since v15.1.0
Configured CSI report settings as specified in TS 38.214 [19] clause 5.2.1.1.
csi-ReportConfigToReleaseList
SEQUENCE (SIZE (1..maxNrofCSI-ReportConfigurations)) OF CSI-ReportConfigId · OPTIONAL Need N
since v15.1.0
reportTriggerSize
INTEGER (0..6) · OPTIONAL Need M
since v15.1.0
Size of CSI request field in DCI (bits) (see TS 38.214 [19], clause 5.2.1.5.1). The field reportTriggerSize applies to DCI format 0_1 and the field reportTriggerSizeDCI-0-2 applies to DCI format 0_2 (see TS 38.214 [19], clause 5.2.1.5.1).
aperiodicTriggerStateList
SetupRelease { CSI-AperiodicTriggerStateList } · OPTIONAL Need M
since v15.1.0
Contains trigger states for dynamically selecting one or more aperiodic and semi-persistent reporting configurations and/or triggering one or more aperiodic CSI-RS resource sets for channel and/or interference measurement (see TS 38.214 [19], clause 5.2.1).
semiPersistentOnPUSCH-TriggerStateList
SetupRelease { CSI-SemiPersistentOnPUSCH-TriggerStateList } · OPTIONAL Need M
since v15.1.0
reportTriggerSizeDCI-0-2-r16
INTEGER (0..6) · OPTIONAL Need R
since v16.2.0
Size of CSI request field in DCI (bits) (see TS 38.214 [19], clause 5.2.1.5.1). The field reportTriggerSize applies to DCI format 0_1 and the field reportTriggerSizeDCI-0-2 applies to DCI format 0_2 (see TS 38.214 [19], clause 5.2.1.5.1).
sCellActivationRS-ConfigToAddModList-r17
SEQUENCE (SIZE (1..maxNrofSCellActRS-r17)) OF SCellActivationRS-Config-r17 · OPTIONAL Need N
since v17.0.0
sCellActivationRS-ConfigToReleaseList-r17
SEQUENCE (SIZE (1..maxNrofSCellActRS-r17)) OF SCellActivationRS-ConfigId-r17 · OPTIONAL Need N
since v17.0.0
ltm-CSI-ReportConfigToAddModList-r18
SEQUENCE (SIZE (1..maxNrofLTM-CSI-ReportConfigurations-r18)) OF LTM-CSI-ReportConfig-r18 · OPTIONAL Need N
since v18.0.0
Configured CSI report settings for LTM as specified in TS 38.214 [19].
ltm-CSI-ReportConfigToReleaseList-r18
SEQUENCE (SIZE (1..maxNrofLTM-CSI-ReportConfigurations-r18)) OF LTM-CSI-ReportConfigId-r18 · OPTIONAL Need N
since v18.0.0
cli-RSSI-MeasResourceToAddModList-r19
SEQUENCE (SIZE (1..maxNrofCLI-RSSI-MeasResources-r19)) OF CLI-RSSI-MeasResource-r19 · OPTIONAL Need N
since v19.0.0
Pool of CLI-RSSI-MeasResource for CLI RSSI measurement.
cli-RSSI-MeasResourceToReleaseList-r19
SEQUENCE (SIZE (1..maxNrofCLI-RSSI-MeasResources-r19)) OF CLI-RSSI-MeasResourceId-r19 · OPTIONAL Need N
since v19.0.0
cli-RSSI-MeasResourceSetToAddModList-r19
SEQUENCE (SIZE (1..maxNrofCLI-RSSI-MeasResourceSets-r19)) OF CLI-RSSI-MeasResourceSet-r19 · OPTIONAL Need N
since v19.0.0
Pool of CLI-RSSI-MeasResourceSet for CLI RSSI measurement.
cli-RSSI-MeasResourceSetToReleaseList-r19
SEQUENCE (SIZE (1..maxNrofCLI-RSSI-MeasResourceSets-r19)) OF CLI-RSSI-MeasResourceSetId-r19 · OPTIONAL Need N
since v19.0.0
srs-RSRP-MeasResourceToAddModList-r19
SEQUENCE (SIZE (1..maxNrofSRS-RSRP-MeasResources-r19)) OF SRS-RSRP-MeasResource-r19 · OPTIONAL Need N
since v19.0.0
Pool of SRS-RSRP-MeasResource for SRS RSRP measurement.
srs-RSRP-MeasResourceToReleaseList-r19
SEQUENCE (SIZE (1..maxNrofSRS-RSRP-MeasResources-r19)) OF SRS-RSRP-MeasResourceId-r19 · OPTIONAL Need N
since v19.0.0
srs-RSRP-MeasResourceSetToAddModList-r19
SEQUENCE (SIZE (1..maxNrofSRS-RSRP-MeasResourceSets-r19)) OF SRS-RSRP-MeasResourceSet-r19 · OPTIONAL Need N
since v19.0.0
Pool of SRS-RSRP-MeasResourceSet for SRS RSRP measurement.
srs-RSRP-MeasResourceSetToReleaseList-r19
SEQUENCE (SIZE (1..maxNrofSRS-RSRP-MeasResourceSets-r19)) OF SRS-RSRP-MeasResourceSetId-r19 · OPTIONAL Need N
since v19.0.0
csi-LoggedMeasurementConfigToAddModList-r19
SEQUENCE (SIZE (1..maxNrofLoggedMeasurementConfigurations-r19)) OF CSI-LoggedMeasurementConfig-r19 · OPTIONAL Need N
since v19.0.0
Configured CSI logged measurements for network-side data collection.
csi-LoggedMeasurementConfigToReleaseList-r19
SEQUENCE (SIZE (1..maxNrofLoggedMeasurementConfigurations-r19)) OF CSI-LoggedMeasurementConfigId-r19 · OPTIONAL Need N
since v19.0.0

Used by (1)

Uses (45)

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