TDD-UL-DL-ConfigCommon

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

TDD-UL-DL-ConfigCommon 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 v15.2.0 (2018-06)

Definition

The IE TDD-UL-DL-ConfigCommon determines the cell specific Uplink/Downlink TDD configuration.

TDD-UL-DL-ConfigCommon ::=          SEQUENCE {
    referenceSubcarrierSpacing          SubcarrierSpacing,
    pattern1                            TDD-UL-DL-Pattern,
    pattern2                            TDD-UL-DL-Pattern                                                       OPTIONAL, -- Need R
    ...
}

Candidate change requests of v15.2.0

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

CR 0042 r7 (likely): Miscellaneous EN-DC corrections

Fields (3)

Field	Description
referenceSubcarrierSpacing SubcarrierSpacing	Reference SCS used to determine the time domain boundaries in the UL-DL pattern which must be common across all subcarrier specific carriers, i.e., independent of the actual subcarrier spacing using for data transmission. Only the following values are applicable depending on the used frequency: FR1: 15, 30, or 60 kHz FR2-1: 60 or 120 kHz FR2-2: 120, 480, or 960 kHz The network configures a not larger than any SCS of configured BWPs for the serving cell. The network or SL-PreconfigGeneral configures a not larger than the SCS of (pre-)configured SL BWP.See TS 38.213 [13], clause 11.1.
pattern1 TDD-UL-DL-Pattern since v15.2.0
pattern2 TDD-UL-DL-Pattern · OPTIONAL Need R since v15.2.0

TDD-UL-DL-ConfigCommon

Definition

Candidate change requests of v15.2.0

Fields (3)

Used by (7)

Uses (2)

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