specviewer.org TS 38.331 ASN.1 index CandidateTCI-State-r18

CandidateTCI-State (CandidateTCI-State-r18)

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

CandidateTCI-State-r18 is an RRC information element of 3GPP TS 38.331 (38331), the 5G NR Radio Resource Control (RRC) protocol.

First seen v18.0.0 (2024-01) · Last changed v18.3.0 (2024-09)

Definition

The IE CandidateTCI-State defines a TCI states configuration which associate one or more reference signal with a corresponding quasi-colocation (QCL) type.

CandidateTCI-State-r18 ::=           SEQUENCE {
    tci-StateId-r18                      TCI-StateId,
    qcl-Type1-r18                        LTM-QCL-Info-r18,
    qcl-Type2-r18                        LTM-QCL-Info-r18                                                    OPTIONAL,   -- Need R
    pathlossReferenceRS-Id-r18           PathlossReferenceRS-Id-r17                                          OPTIONAL,   -- Cond Joint
    tag-Id-ptr-r18                       ENUMERATED {n0,n1}                                                  OPTIONAL,   -- Cond 2TA
    ul-PowerControl-r18                  Uplink-powerControlId-r17                                           OPTIONAL,   -- Cond Joint2
    ...
}

Candidate change requests of v18.3.0

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

Fields (6)

FieldDescription
tci-StateId-r18
TCI-StateId
The ID number of the TCI state.
qcl-Type1-r18
LTM-QCL-Info-r18
QCL information for the TCI state.
qcl-Type2-r18
LTM-QCL-Info-r18 · OPTIONAL Need R
QCL information for the TCI state.
pathlossReferenceRS-Id-r18
PathlossReferenceRS-Id-r17 · OPTIONAL Cond Joint
Indicates a PathlossReferenceRS of the candidate that includes this CandidateTCI-State and it refers to one of the PathlossReferenceRS configured within LTM-TCI-Info . In this version of the specification only SSB can be included as reference signal when PathlossReferenceRS is included within a CandidateTCI-State IE.
tag-Id-ptr-r18
ENUMERATED {n0,n1} · OPTIONAL Cond 2TA
since v18.2.0
ul-PowerControl-r18
Uplink-powerControlId-r17 · OPTIONAL Cond Joint2
since v18.3.0
Indicates the UL power control parameters for PUSCH, PUCCH, and SRS of the candidate that includes this CandidateTCI-State . This field refers to an element in the list configured using uplink-PowerControlToAddModList in the SpCellConfig of the ltm-CandidateConfig in the LTM-Candidate where the ltm-TCI-Info is configured.

Used by (1)

Uses (4)

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