specviewer.org TS 38.331 ASN.1 index SlotFormatCombinationsPerCell

SlotFormatCombinationsPerCell

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

SlotFormatCombinationsPerCell 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 v16.1.0 (2020-07)

Definition

The IE SlotFormatCombinationsPerCell is used to configure the SlotFormatCombinations applicable for one serving cell (see TS 38.213 [13], clause 11.1.1).

SlotFormatCombinationsPerCell ::=   SEQUENCE {
    servingCellId                       ServCellIndex,
    subcarrierSpacing                   SubcarrierSpacing,
    subcarrierSpacing2                  SubcarrierSpacing                                                         OPTIONAL, -- Need R
    slotFormatCombinations              SEQUENCE (SIZE (1..maxNrofSlotFormatCombinationsPerSet)) OF SlotFormatCombination
    OPTIONAL, -- Need M
    positionInDCI                       INTEGER(0..maxSFI-DCI-PayloadSize-1)                                      OPTIONAL, -- Need M
    ...,
    [[
        enableConfiguredUL-r16              ENUMERATED {enabled}                                                      OPTIONAL  -- Need R
    ]]
}

Fields (6)

FieldDescription
servingCellId
ServCellIndex
The ID of the serving cell for which the slotFormatCombinations are applicable.
subcarrierSpacing
SubcarrierSpacing
Reference subcarrier spacing for this Slot Format Combination. The network configures a value that is smaller than or equal to any SCS of configured BWPs of the serving cell that the command applies to. And the network configures a value that is smaller than or equal to the SCS of the serving cell which the UE monitors for SFI indications (see TS 38.213 [13], clause 11.1.1).
subcarrierSpacing2
SubcarrierSpacing · OPTIONAL Need R
Reference subcarrier spacing for a Slot Format Combination on an FDD or SUL cell (see TS 38.213 [13], clause 11.1.1). For FDD, subcarrierSpacing (SFI-scs) is the reference SCS for DL BWP and subcarrierSpacing2 (SFI-scs2) is the reference SCS for UL BWP. For SUL, subcarrierSpacing (SFI-scs) is the reference SCS for non-SUL carrier and subcarrierSpacing2 (SFI-scs2) is the reference SCS for SUL carrier. The network configures a value that is smaller than or equal to any SCS of configured BWPs of the serving cell that the command applies to. And the network configures a value that is smaller than or equal to the SCS of the serving cell which the UE monitors for SFI indications.
slotFormatCombinations
SEQUENCE (SIZE (1..maxNrofSlotFormatCombinationsPerSet)) OF SlotFormatCombination · OPTIONAL Need M
A list with SlotFormatCombinations . Each SlotFormatCombination comprises of one or more SlotFormats (see TS 38.211 [16], clause 4.3.2). The total number of slotFormats in the slotFormatCombinations list does not exceed 512.
positionInDCI
INTEGER(0..maxSFI-DCI-PayloadSize-1) · OPTIONAL Need M
The (starting) position (bit) of the slotFormatCombinationId (SFI-Index) for this serving cell (servingCellId) within the DCI payload (see TS 38.213 [13], clause 11.1.1).
enableConfiguredUL-r16
ENUMERATED {enabled} · OPTIONAL Need R
since v16.0.0
If configured, the UE is allowed to transmit uplink signals/channels (SRS, PUCCH, CG-PUSCH) in the set of symbols of the slot when the UE does not detect a DCI format 2_0 providing a slot format for the set of symbols (see TS 38.213 [13], 11.1.1). This field is applicable only if cg-RetransmissionTimer-r16 is configured.

Used by (1)

Uses (5)

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