SubcarrierSpacing

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

SubcarrierSpacing 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 v17.0.0 (2022-04)

Definition

The IE SubcarrierSpacing determines the subcarrier spacing. Restrictions applicable for certain frequencies, channels or signals are clarified in the fields that use this IE.

SubcarrierSpacing ::=               ENUMERATED {kHz15, kHz30, kHz60, kHz120, kHz240, kHz480-v1700, kHz960-v1700, spare1}

Candidate change requests of v17.0.0

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

• CR 2891 r2 (strong): Extending NR operation to 71 GHz

Used by (42)

• AttemptedBWP-Info-r18
• BWP
• BeamFailureRecoveryConfig
• CO-DurationsPerCell-r16
• CO-DurationsPerCell-r17
• CSI-RS-ResourceConfigMobility
• CarrierInfoNR
• CarrierInfoNR-v1900
• EarlyUL-SyncConfig-r18
• FeatureSetDownlinkPerCC
• FeatureSetUplinkPerCC
• FrequencyConfig-NR-r16
• IAB-ResourceConfig-r17
• InterFreqCarrierFreqInfo
• IntraCellGuardBandsPerSCS-r16
• LTM-SSB-Config-r18
• LogicalChannelConfig
• MeasIdleCarrierNR-r16
• MeasObjectNR
• MeasResultNeighFreqRSSI-r18
• MeasTiming
• MeasurementTimingConfiguration-v1610-IEs
• NCR-AperiodicFwdConfig-r18
• NCR-PeriodicFwdResourceSet-r18
• NCR-SemiPersistentFwdResourceSet-r18
• NZP-CSI-RS-Resource
• NonServingInfo-r18
• OD-SSB-r19
• RA-InformationCommon-r16
• RACH-ConfigCommon
• RACH-ConfigCommonTwoStepRA-r16
• RACH-ConfigTwoTA-r18
• RSSI-ResourceConfigCLI-r16
• RateMatchPattern
• SCS-SpecificCarrier
• SL-CarrierConfig-r18
• SL-LogicalChannelConfig-r16
• SRS-ResourceConfigCLI-r16
• SSB-Configuration-r16
• ServingCellConfigCommon
• SlotFormatCombinationsPerCell
• TDD-UL-DL-ConfigCommon

In the viewer

• Read SubcarrierSpacing in v19.4.0
• History of SubcarrierSpacing across versions
• All versions of TS 38.331
• ASN.1 index