specviewer.org TS 38.331 ASN.1 index TDD-UL-DL-Pattern

TDD-UL-DL-Pattern

RRC IE · TS 38.331 v19.4.0 (2026-09) · clause 6.3.2, in the TDD-UL-DL-ConfigCommon clause

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

First seen v15.2.0 (2018-06) · Last changed v19.0.0 (2025-10)

Definition

TDD-UL-DL-Pattern ::=               SEQUENCE {
    dl-UL-TransmissionPeriodicity       ENUMERATED {ms0p5, ms0p625, ms1, ms1p25, ms2, ms2p5, ms5, ms10},
    nrofDownlinkSlots                   INTEGER (0..maxNrofSlots),
    nrofDownlinkSymbols                 INTEGER (0..maxNrofSymbols-1),
    nrofUplinkSlots                     INTEGER (0..maxNrofSlots),
    nrofUplinkSymbols                   INTEGER (0..maxNrofSymbols-1),
    ...,
    [[
        dl-UL-TransmissionPeriodicity-v1530     ENUMERATED {ms3, ms4}                                               OPTIONAL -- Need R
    ]],
    [[
        sbfd-StartingSlotIndex-r19          INTEGER (0..maxNrofSlots-1)                                             OPTIONAL, -- Need R
        sbfd-StartingSymbolIndex-r19        INTEGER (0..maxNrofSymbols-1)                                           OPTIONAL, -- Need R
        sbfd-EndingSlotIndex-r19            INTEGER (0..maxNrofSlots-1)                                             OPTIONAL, -- Need R
        sbfd-EndingSymbolIndex-r19          INTEGER (0..maxNrofSymbols-1)                                           OPTIONAL  -- Need R
    ]]
}

Fields (10)

FieldDescription
dl-UL-TransmissionPeriodicity
ENUMERATED {ms0p5, ms0p625, ms1, ms1p25, ms2, ms2p5, ms5, ms10}
Periodicity of the DL-UL pattern, see TS 38.213 [13], clause 11.1. If the dl-UL-TransmissionPeriodicity-v1530 is signalled, UE shall ignore the dl-UL-TransmissionPeriodicity (without suffix).
nrofDownlinkSlots
INTEGER (0..maxNrofSlots)
Number of consecutive full DL slots at the beginning of each DL-UL pattern, see TS 38.213 [13], clause 11.1. In this release, the maximum value for this field is 320.
nrofDownlinkSymbols
INTEGER (0..maxNrofSymbols-1)
Number of consecutive DL symbols in the beginning of the slot following the last full DL slot (as derived from nrofDownlinkSlots ). The value 0 indicates that there is no partial-downlink slot. (see TS 38.213 [13], clause 11.1).
nrofUplinkSlots
INTEGER (0..maxNrofSlots)
Number of consecutive full UL slots at the end of each DL-UL pattern, see TS 38.213 [13], clause 11.1. In this release, the maximum value for this field is 320.
nrofUplinkSymbols
INTEGER (0..maxNrofSymbols-1)
Number of consecutive UL symbols in the end of the slot preceding the first full UL slot (as derived from nrofUplinkSlots ). The value 0 indicates that there is no partial-uplink slot. (see TS 38.213 [13], clause 11.1).
dl-UL-TransmissionPeriodicity-v1530
ENUMERATED {ms3, ms4} · OPTIONAL Need R
since v15.3.0
Periodicity of the DL-UL pattern, see TS 38.213 [13], clause 11.1. If the dl-UL-TransmissionPeriodicity-v1530 is signalled, UE shall ignore the dl-UL-TransmissionPeriodicity (without suffix).
sbfd-StartingSlotIndex-r19
INTEGER (0..maxNrofSlots-1) · OPTIONAL Need R
since v19.0.0
Configures the starting slot index and the ending slot index of SBFD subbands within a TDD-UL-DL period.
sbfd-StartingSymbolIndex-r19
INTEGER (0..maxNrofSymbols-1) · OPTIONAL Need R
since v19.0.0
Configures the starting symbol index within the starting slot, the ending symbol index within the ending slot of SBFD subbands within a TDD-UL-DL period.
sbfd-EndingSlotIndex-r19
INTEGER (0..maxNrofSlots-1) · OPTIONAL Need R
since v19.0.0
Configures the starting slot index and the ending slot index of SBFD subbands within a TDD-UL-DL period.
sbfd-EndingSymbolIndex-r19
INTEGER (0..maxNrofSymbols-1) · OPTIONAL Need R
since v19.0.0
Configures the starting symbol index within the starting slot, the ending symbol index within the ending slot of SBFD subbands within a TDD-UL-DL period.

Used by (1)

Uses (3)

In the viewer