specviewer.org TS 38.331 ASN.1 index LTM-ResourceConfigNRDC-r18

LTM-ResourceConfigNRDC (LTM-ResourceConfigNRDC-r18)

inter-node RRC IE · TS 38.331 v19.4.0 (2026-09) · clause 11.3

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

First seen v18.6.0 (2025-06) · Not changed since

Definition

The IE LTM-ResourceConfigNRDC is used to indicate or request a maximum value that can be used by the SN in NR-DC to configure LTM related configuration at the SCG e.g., number of TCI states to be configured and activated, and number of LTM candidates on which to trigger the early UL synchronization. Each value is equal to or lower than the value of the corresponding field in the UE capability, as reported by the UE, unless specified otherwise. The value indicated by each field is applicable to all BCs within the field allowedBC-ListMRDC .

LTM-ResourceConfigNRDC-r18 ::= SEQUENCE {
    maxCellsTA-Meas-r18                    INTEGER(0..maxNrofCellsTA-Meas-r18)                            OPTIONAL,
    maxConfigJointTCI-States-r18           INTEGER(0..maxNrofConfigJointTCI-States-r18)                   OPTIONAL,
    maxCellsJointTCI-r18                   INTEGER(0..maxNrofCellsTCI-r18)                                OPTIONAL,
    maxConfigDL-TCI-States-r18             INTEGER(0..maxNrofConfigDL-TCI-States-r18)                     OPTIONAL,
    maxConfigUL-TCI-States-r18             INTEGER(0..maxNrofConfigUL-TCI-States-r18)                     OPTIONAL,
    maxCellsTCI-r18                        INTEGER(0..maxNrofCellsTCI-r18)                                OPTIONAL,
    maxStoredConfigCells-r18               INTEGER(0..maxNrofStoredConfigCells-r18)                       OPTIONAL,
    maxConfigCells-r18                     INTEGER(0..maxNrofConfigCells-r18)                             OPTIONAL,
    maxActivatedJointTCI-States-r18        INTEGER(0..maxNrofActivatedJointTCI-States-r18)                OPTIONAL,
    maxActivatedDL-TCI-States-r18          INTEGER(0..maxNrofActivatedDL-TCI-States-r18)                  OPTIONAL,
    maxActivatedUL-TCI-States-r18          INTEGER(0..maxNrofActivatedUL-TCI-States-r18)                  OPTIONAL,
    ...
}

Fields (11)

FieldDescription
maxCellsTA-Meas-r18
INTEGER(0..maxNrofCellsTA-Meas-r18) · OPTIONAL
Indicates the maximum number of candidate cells for TA acquisition based on PDCCH ordered CFRA procedure before receiving cell switch command MAC-CE.
maxConfigJointTCI-States-r18
INTEGER(0..maxNrofConfigJointTCI-States-r18) · OPTIONAL
Indicates the maximum number of configured joint LTM TCI state(s).
maxCellsJointTCI-r18
INTEGER(0..maxNrofCellsTCI-r18) · OPTIONAL
Indicates the maximum number of configured cells for joint LTM TCI state(s).
maxConfigDL-TCI-States-r18
INTEGER(0..maxNrofConfigDL-TCI-States-r18) · OPTIONAL
Indicates the maximum number of configured separate DL LTM TCI state(s).
maxConfigUL-TCI-States-r18
INTEGER(0..maxNrofConfigUL-TCI-States-r18) · OPTIONAL
Indicates the maximum number of configured separate UL LTM TCI state(s).
maxCellsTCI-r18
INTEGER(0..maxNrofCellsTCI-r18) · OPTIONAL
Indicates the maximum number of configured cells for separate DL/UL LTM TCI state(s).
maxStoredConfigCells-r18
INTEGER(0..maxNrofStoredConfigCells-r18) · OPTIONAL
Indicates the maximum number of serving cell(s) and candidate cell(s), including serving SpCell(s), serving SCell(s) in SCG, SpCell in LTM candidate configurations and SCell(s) in LTM candidate configurations for SCG.
maxConfigCells-r18
INTEGER(0..maxNrofConfigCells-r18) · OPTIONAL
Indicates the maximum number of LTM candidate configuration(s) for which the UE can perform early ASN.1 decoding and validity check.
maxActivatedJointTCI-States-r18
INTEGER(0..maxNrofActivatedJointTCI-States-r18) · OPTIONAL
Indicates the maximum number of MAC CE activated joint LTM TCI states.
maxActivatedDL-TCI-States-r18
INTEGER(0..maxNrofActivatedDL-TCI-States-r18) · OPTIONAL
Indicates the maximum number of MAC CE activated LTM DL TCI states.
maxActivatedUL-TCI-States-r18
INTEGER(0..maxNrofActivatedUL-TCI-States-r18) · OPTIONAL
Indicates the maximum number of MAC CE activated LTM UL TCI states.

Used by (2)

Uses (10)

In the viewer