BWP-DownlinkDedicated

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

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

First seen v15.1.0 (2018-04) · Last changed v19.0.0 (2025-10)

Definition

The IE BWP-DownlinkDedicated is used to configure the dedicated (UE specific) parameters of a downlink BWP.

BWP-DownlinkDedicated ::=           SEQUENCE {
    pdcch-Config                        SetupRelease { PDCCH-Config }                                     OPTIONAL,   -- Need M
    pdsch-Config                        SetupRelease { PDSCH-Config }                                     OPTIONAL,   -- Need M
    sps-Config                          SetupRelease { SPS-Config }                                       OPTIONAL,   -- Need M
    radioLinkMonitoringConfig           SetupRelease { RadioLinkMonitoringConfig }                        OPTIONAL,   -- Need M
    ...,
    [[
        sps-ConfigToAddModList-r16          SPS-ConfigToAddModList-r16                                        OPTIONAL,   -- Need N
        sps-ConfigToReleaseList-r16         SPS-ConfigToReleaseList-r16                                       OPTIONAL,   -- Need N
        sps-ConfigDeactivationStateList-r16 SPS-ConfigDeactivationStateList-r16                               OPTIONAL,   -- Need R
        beamFailureRecoverySCellConfig-r16  SetupRelease {BeamFailureRecoveryRSConfig-r16}                    OPTIONAL,   -- Cond SCellOnly
        sl-PDCCH-Config-r16                 SetupRelease { PDCCH-Config }                                     OPTIONAL,   -- Need M
        sl-V2X-PDCCH-Config-r16             SetupRelease { PDCCH-Config }                                     OPTIONAL    -- Need M
    ]],
    [[
        preConfGapStatus-r17                BIT STRING (SIZE (maxNrofGapId-r17))                              OPTIONAL,   -- Cond PreConfigMG
        beamFailureRecoverySpCellConfig-r17 SetupRelease { BeamFailureRecoveryRSConfig-r16}                   OPTIONAL,   -- Cond SpCellOnly
        harq-FeedbackEnablingforSPSactive-r17 BOOLEAN                                                         OPTIONAL,   -- Need R
        cfr-ConfigMulticast-r17             SetupRelease { CFR-ConfigMulticast-r17 }                          OPTIONAL,   -- Need M
        dl-PPW-PreConfigToAddModList-r17    DL-PPW-PreConfigToAddModList-r17                                  OPTIONAL,   -- Need N
        dl-PPW-PreConfigToReleaseList-r17   DL-PPW-PreConfigToReleaseList-r17                                 OPTIONAL,   -- Need N
        nonCellDefiningSSB-r17              NonCellDefiningSSB-r17                                            OPTIONAL,   -- Need R
        servingCellMO-r17                   MeasObjectId                                                  OPTIONAL -- Cond MeasObject-NCD-SSB
    ]],
    [[
        tci-InDCI-r18                       SetupRelease {TCI-InDCI-r18}                                      OPTIONAL    -- Need M
    ]],
    [[
        sbfd-Config2-Reception-r19          ENUMERATED {enabled}                                              OPTIONAL,   -- Need S
        pathlossOffsetPRACH-DCI-1-0-r19     ENUMERATED { enabled }                                            OPTIONAL,   -- Need R
        prachAssociationDCI-1-0-r19         ENUMERATED { enabled }                                            OPTIONAL    -- Need R
    ]]
}

Fields (22)

Field	Description
pdcch-Config SetupRelease { PDCCH-Config } · OPTIONAL Need M	UE specific PDCCH configuration for one BWP.
pdsch-Config SetupRelease { PDSCH-Config } · OPTIONAL Need M	UE specific PDSCH configuration for one BWP.
sps-Config SetupRelease { SPS-Config } · OPTIONAL Need M	UE specific SPS (Semi-Persistent Scheduling) configuration for one BWP. Except for reconfiguration with sync, the NW does not reconfigure sps-Config when there is an active configured downlink assignment (see TS 38.321 [3]). However, the NW may release the sps-Config at any time. Network can only configure SPS in one BWP using either this field or sps-ConfigToAddModList. Network does not configure SPS in one BWP using this field and sps-ConfigMulticastToAddModList-r17 simultaneously.
radioLinkMonitoringConfig SetupRelease { RadioLinkMonitoringConfig } · OPTIONAL Need M	UE specific configuration of radio link monitoring for detecting cell- and beam radio link failure occasions. The maximum number of failure detection resources should be limited up to 8 for both cell and beam radio link failure detection. For SCells, only periodic 1-port CSI-RS can be configured in IE RadioLinkMonitoringConfig .
sps-ConfigToAddModList-r16 SPS-ConfigToAddModList-r16 · OPTIONAL Need N since v16.1.0	Indicates a list of one or more DL SPS configurations to be added or modified in one BWP. Except for reconfiguration with sync, the NW does not reconfigure a SPS configuration when it is active (see TS 38.321 [3]).
sps-ConfigToReleaseList-r16 SPS-ConfigToReleaseList-r16 · OPTIONAL Need N since v16.1.0	Indicates a list of one or more DL SPS configurations to be released. The NW may release a SPS configuration at any time.
sps-ConfigDeactivationStateList-r16 SPS-ConfigDeactivationStateList-r16 · OPTIONAL Need R since v16.1.0	Indicates a list of the deactivation states in which each state can be mapped to a single or multiple SPS configurations to be deactivated, see clause 10.2 in TS 38.213 [13]. If a state is mapped to multiple SPS configurations, each of these SPS configurations is configured with the same harq-CodebookID .
beamFailureRecoverySCellConfig-r16 SetupRelease {BeamFailureRecoveryRSConfig-r16} · OPTIONAL Cond SCellOnly since v16.0.0	Configuration of candidate RS for beam failure recovery on SCells.
sl-PDCCH-Config-r16 SetupRelease { PDCCH-Config } · OPTIONAL Need M since v16.1.0	Indicates the UE specific PDCCH configurations for receiving the SL grants (via SL-RNTI or SL-CS-RNTI) for NR sidelink communication/discovery .
sl-V2X-PDCCH-Config-r16 SetupRelease { PDCCH-Config } · OPTIONAL Need M since v16.1.0	Indicates the UE specific PDCCH configurations for receiving SL grants (i.e. sidelink SPS) for V2X sidelink communication .
preConfGapStatus-r17 BIT STRING (SIZE (maxNrofGapId-r17)) · OPTIONAL Cond PreConfigMG since v17.1.0	Indicates whether the pre-configured measurement gaps (i.e. the gaps configured with preConfigInd ) are activated or deactivated upon the switch to this BWP. If this field is configured, the UE shall apply network-controlled mechanism for activation and deactivation of the pre-configured measurement gaps, otherwise the UE shall apply the autonomous activation/deactivation mechanism, as specified in TS 38.133 [14]. The first/leftmost bit corresponds to the measurement gap with gap ID 1, the second bit corresponds to measurement gap with gap ID 2, and so on. Value 0 indicates that the corresponding pre-configured measurement gap is deactivated while value 1 indicates that the corresponding pre-configured measurement gap is activated. The UE shall ignore the bit if the corresponding measurement gap is not a pre-configured measurement gap.
beamFailureRecoverySpCellConfig-r17 SetupRelease { BeamFailureRecoveryRSConfig-r16} · OPTIONAL Cond SpCellOnly since v17.1.0	Configuration of candidate RS for beam failure recovery on the SpCell. This field can only be configured when beamFailure-r17 is configured in RadioLinkMonitoringConfig .
harq-FeedbackEnablingforSPSactive-r17 BOOLEAN · OPTIONAL Need R since v17.0.0	If enabled, UE reports ACK/NACK for the first SPS PDSCH after activation, regardless of if HARQ feedback is enabled or disabled for the HARQ process corresponding to the first SPS PDSCH after activation. Otherwise, UE follows configuration of HARQ feedback enabled/disabled for the HARQ process corresponding to the first SPS PDSCH after activation.
cfr-ConfigMulticast-r17 SetupRelease { CFR-ConfigMulticast-r17 } · OPTIONAL Need M since v17.0.0	UE specific common frequency resource configuration for MBS multicast for one dedicated BWP. This field can be configured within at most one serving cell.
dl-PPW-PreConfigToAddModList-r17 DL-PPW-PreConfigToAddModList-r17 · OPTIONAL Need N since v17.1.0	Indicates a list of DL-PRS processing window configurations to be added or modified for the dedicated DL BWP.
dl-PPW-PreConfigToReleaseList-r17 DL-PPW-PreConfigToReleaseList-r17 · OPTIONAL Need N since v17.1.0	Indicates a list of DL-PRS processing window configurations to be released for the dedicated DL BWP.
nonCellDefiningSSB-r17 NonCellDefiningSSB-r17 · OPTIONAL Need R since v17.0.0	If configured, the UE operating in this BWP uses this SSB for the purposes for which it would otherwise have used the CD-SSB of the serving cell (e.g. obtaining sync, measurements, RLM, BFD, beam management). Furthermore, other parts of the BWP configuration that refer to an SSB (e.g. the "SSB" configured in the QCL-Info IE; the "ssb-Index" configured in the RadioLinkMonitoringRS ; CFRA-SSB-Resource ; PRACH-ResourceDedicatedBFR ) refer implicitly to this NCD-SSB. The NCD-SSB has the same values for the properties (e.g., ssb-PositionsInBurst , PCI , ssb-PBCH-BlockPower ) of the corresponding CD-SSB apart from the values of the properties configured in the NonCellDefiningSSB-r17 IE. In the MIB associated with this NCD-SSB, the systemFrameNumber field indicates the frame boundary and frame number of the NCD-SSB. The subCarrierSpacingCommon and dmrs-TypeA-Position field in the MIBs associated with CD-SSB and NCD-SSB in the same cell are configured with the same values, respectively.
servingCellMO-r17 MeasObjectId · OPTIONAL Cond MeasObject-NCD-SSB since v17.1.0	measObjectId of the MeasObjectNR in MeasConfig which is associated to the serving cell. For this MeasObjectNR , the following relationship applies between this MeasObjectNR and nonCellDefiningSSB in BWP-DownlinkDedicated of the associated downlink BWP: if ssbFrequency is configured, its value is the same as the absoluteFrequencySSB in the nonCellDefiningSSB . If the field is present in a downlink BWP and the BWP is activated, the UE uses this measurement object for serving cell measurements (e.g., including those used in measurement report triggering events), otherwise, the UE uses the servingCellMO in ServingCellConfig IE.
tci-InDCI-r18 SetupRelease {TCI-InDCI-r18} · OPTIONAL Need M since v18.2.0
sbfd-Config2-Reception-r19 ENUMERATED {enabled} · OPTIONAL Need S since v19.0.0	Indicates that the PDSCH receptions can be in SBFD symbols and non-SBFD symbols in different slots in a given DL BWP, as specified in TS 38.214 [19], clause 5. If not enabled, the restriction that the receptions are restricted to SBFD symbols only or non-SBFD symbols only is applied for PDSCH receptions in the given DL BWP.
pathlossOffsetPRACH-DCI-1-0-r19 ENUMERATED { enabled } · OPTIONAL Need R since v19.0.0	Enables the presence of a 1-bit DCI field in DCI format 1_0 for indicating the pathloss offset for PDCCH-ordered PRACH transmissions (see TS 38.212 [17], clause 7.3.1).
prachAssociationDCI-1-0-r19 ENUMERATED { enabled } · OPTIONAL Need R since v19.0.0	Enables the presence of 1-bit DCI field "PRACH association indicator" in DCI format 1_0 (see TS 38.212 [17], clause 7.3.1). This field can only be configured if twoTA-Without-MultiDCI-MultiTRP is configured.

BWP-DownlinkDedicated

Definition

Fields (22)

Used by (2)

Uses (16)

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