TCI-UL-State (TCI-UL-State-r17)

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

TCI-UL-State-r17 is an RRC information element of 3GPP TS 38.331 (38331), the 5G NR Radio Resource Control (RRC) protocol.

First seen v17.1.0 (2022-07) · Last changed v19.0.0 (2025-10)

Definition

The IE TCI-UL-State indicates the TCI state information for UL transmission.

TCI-UL-State-r17 ::=             SEQUENCE {
    tci-UL-StateId-r17              TCI-UL-StateId-r17,
    servingCellId-r17                ServCellIndex                                         OPTIONAL,   -- Need R
    bwp-Id-r17                       BWP-Id                                                OPTIONAL,   -- Cond CSI-RSorSRS-Indicated
    referenceSignal-r17              CHOICE {
        ssb-Index-r17                    SSB-Index,
        csi-RS-Index-r17                 NZP-CSI-RS-ResourceId,
        srs-r17                          SRS-ResourceId
    },
    additionalPCI-r17                AdditionalPCIIndex-r17                                OPTIONAL,   -- Need R
    ul-powerControl-r17              Uplink-powerControlId-r17                             OPTIONAL,   -- Need R
    pathlossReferenceRS-Id-r17       PathlossReferenceRS-Id-r17                            OPTIONAL,   -- Cond Mandatory
    ...,
    [[
        tag-Id-ptr-r18                   ENUMERATED {n0,n1}                                    OPTIONAL    -- Cond 2TA
    ]],
    [[
        pathlossOffset-r19               ENUMERATED {
            dB-12, dB-8, dB-4, dB0, dB4, dB8,
            dB12, dB16, dB20, dB24, dB28, dB32, dB36,
            dB40, dB44, dB48, dB52, dB56, dB60}               OPTIONAL    -- Need R
    ]]
}

Fields (12)

Field	Description
tci-UL-StateId-r17 TCI-UL-StateId-r17 since v17.4.0
servingCellId-r17 ServCellIndex · OPTIONAL Need R	The UE's serving cell in which the referenceSignal is configured. If the field is absent, the referenceSignal is configured in the serving cell in which the TCI-UL-State is applied by the UE.
bwp-Id-r17 BWP-Id · OPTIONAL Cond CSI-RSorSRS-Indicated	The DL BWP which the CSI-RS is located in or UL BWP where the SRS is located in.
referenceSignal-r17 CHOICE {
ssb-Index-r17 SSB-Index
csi-RS-Index-r17 NZP-CSI-RS-ResourceId
srs-r17 SRS-ResourceId
additionalPCI-r17 AdditionalPCIIndex-r17 · OPTIONAL Need R	Indicates the physical cell IDs (PCI) of the SSBs when referenceSignal is configured as SSB. In case the servingCellId is present, the additionalPCI refers to a PCI value configured in the list configured using additionalPCI-ToAddModList in the serving cell indicated by the field servingCellId . Otherwise, it refers to a PCI value configured in the list configured using additionalPCI-ToAddModList in the serving cell where the ul-TCI-StateList is applied by the UE.
ul-powerControl-r17 Uplink-powerControlId-r17 · OPTIONAL Need R	Configures power control parameters for PUCCH, PUSCH and SRS for this TCI state. The field is present here only if ul-powerControl is not configured in any BWP-Uplink-Dedicated of this serving cell. This field refers to an element in the list configured using uplink-PowerControlToAddModList in the serving cell where the ul-TCI-ToAddModList is configured. For each serving cell, ul-powerControl is either configured in each TCI-UL-State configured or referred to in ul-OrJointTCI-StateList in each UL BWP, or it is not configured in any TCI-UL-State configured or referred to in ul-OrJointTCI-StateList in any UL BWP.
pathlossReferenceRS-Id-r17 PathlossReferenceRS-Id-r17 · OPTIONAL Cond Mandatory	The ID of the reference Signal (e.g. a CSI-RS or a SS block) used for PUSCH, PUCCH and SRS path loss estimation. This field refers to an element in the list configured using pathlossReferenceRSToAddModList in the serving cell and UL BWP where the UL TCI State is applied by the UE.
tag-Id-ptr-r18 ENUMERATED {n0,n1} · OPTIONAL Cond 2TA since v18.0.0	It indicates the TAG that is associated with this TCI state, value n0 means the TCI state associate with the TAG indicated by tag-Id , value n1 means this TCI state associated with the TAG indicated by tag2-Id . The tag-Id-ptr refers to the TAG of the serving cell where the TCI state is applied.
pathlossOffset-r19 ENUMERATED { dB-12, dB-8, dB-4, dB0, dB4, dB8, dB12, dB16, dB20, dB24, dB28, dB32, dB36, dB40, dB44, dB48, dB52, dB56, dB60} · OPTIONAL Need R since v19.0.0	Indicates the pathloss offset applied to the TCI state of an UL TRP (see TS 38.213 [13], clause 7). Value dB-12 corresponds to -12 dB, dB-8 corresponds to -8 dB and so on.

Used by (1)

BWP-UplinkDedicated

TCI-UL-State (TCI-UL-State-r17)

Definition

Fields (12)

Used by (1)

Uses (9)

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