specviewer.org TS 38.331 ASN.1 index AvailabilityIndicator-r16

AvailabilityIndicator (AvailabilityIndicator-r16)

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

AvailabilityIndicator-r16 is an RRC information element of 3GPP TS 38.331 (38331), the 5G NR Radio Resource Control (RRC) protocol.

First seen v16.0.0 (2020-04) · Last changed v16.1.0 (2020-07)

Definition

The IE AvailabilityIndicator is used to configure monitoring a PDCCH for Availability Indicators (AI).

AvailabilityIndicator-r16 ::=    SEQUENCE {
    ai-RNTI-r16                      AI-RNTI-r16,
    dci-PayloadSizeAI-r16            INTEGER (1..maxAI-DCI-PayloadSize-r16),
    availableCombToAddModList-r16    SEQUENCE (SIZE(1..maxNrofDUCells-r16)) OF AvailabilityCombinationsPerCell-r16          OPTIONAL, -- Need N
    availableCombToReleaseList-r16   SEQUENCE (SIZE(1..maxNrofDUCells-r16)) OF AvailabilityCombinationsPerCellIndex-r16     OPTIONAL, -- Need N
    ...
}

Fields (4)

FieldDescription
ai-RNTI-r16
AI-RNTI-r16
Used by an IAB-MT for detection of DCI format 2_5 indicating AvailabilityCombinationId for an IAB-DU's cells.
dci-PayloadSizeAI-r16
INTEGER (1..maxAI-DCI-PayloadSize-r16)
since v16.1.0
Total length of the DCI payload scrambled with ai-RNTI (see TS 38.213 [13]).
availableCombToAddModList-r16
SEQUENCE (SIZE(1..maxNrofDUCells-r16)) OF AvailabilityCombinationsPerCell-r16 · OPTIONAL Need N
A list of availabilityCombinations to add for the IAB-DU's cells. (see TS 38.213 [13], clause 14).
availableCombToReleaseList-r16
SEQUENCE (SIZE(1..maxNrofDUCells-r16)) OF AvailabilityCombinationsPerCellIndex-r16 · OPTIONAL Need N
A list of availabilityCombinations to release for the IAB-DU's cells. (see TS 38.213 [13], clause 14).

Used by (1)

Uses (5)

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