specviewer.org TS 38.331 ASN.1 index AS-Config

AS-Config

inter-node RRC IE · TS 38.331 v19.4.0 (2026-09) · clause 11.2.2, in the HandoverPreparationInformation clause

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

First seen v15.3.0 (2018-09) · Last changed v18.2.0 (2024-07)

Definition

AS-Config ::=                           SEQUENCE {
    rrcReconfiguration                      OCTET STRING (CONTAINING RRCReconfiguration),
    ...,
    [[
        sourceRB-SN-Config                      OCTET STRING (CONTAINING RadioBearerConfig)     OPTIONAL,
        sourceSCG-NR-Config                     OCTET STRING (CONTAINING RRCReconfiguration)    OPTIONAL,
        sourceSCG-EUTRA-Config                  OCTET STRING                                    OPTIONAL
    ]],
    [[
        sourceSCG-Configured                    ENUMERATED {true}                               OPTIONAL
    ]],
    [[
        sdt-Config-r17                          SDT-Config-r17                                  OPTIONAL
    ]],
    [[
        srs-PosRRC-InactiveValidityAreaPreConfigList-r18  SRS-PosRRC-InactiveValidityAreaPreConfigList-r18   OPTIONAL
    ]]
}

Fields (7)

FieldDescription
rrcReconfiguration
OCTET STRING (CONTAINING RRCReconfiguration)
Contains the RRCReconfiguration configuration as generated entirely by the MN. If the TMGI-r17 is included in the MRB-ToAddMod-r17 in the RadioBearerConfig , the plmn-Index is replaced by the PLMN ID, if needed.
sourceRB-SN-Config
OCTET STRING (CONTAINING RadioBearerConfig) · OPTIONAL
since v15.6.0
Contains the IE RadioBearerConfig as generated entirely by the SN. This field is only used when the UE is configured with SN terminated RB(s).
sourceSCG-NR-Config
OCTET STRING (CONTAINING RRCReconfiguration) · OPTIONAL
since v15.6.0
Contains the current dedicated SCG configuration in RRCReconfiguration message as generated entirely by the SN. In this version of the specification, the RRCReconfiguration message can only include fields secondaryCellGroup, measConfig , and conditionalReconfiguration . This field is only used in NR-DC.
sourceSCG-EUTRA-Config
OCTET STRING · OPTIONAL
since v15.6.0
Contains the current dedicated SCG configuration in RRCConnectionReconfiguration message as specified in TS 36.331 [10] and generated entirely by the SN. In this version of the specification, the E-UTRA RRCConnectionReconfiguration message can only include the field scg-Configuration . This field is only used in NE-DC.
sourceSCG-Configured
ENUMERATED {true} · OPTIONAL
since v15.8.0
Value true indicates that the UE is configured with NR or EUTRA SCG in source configuration. The field is only used in NR-DC and NE-DC and is included only if the fields sourceSCG-NR-Config and sourceSCG-EUTRA-Config are absent.
sdt-Config-r17
SDT-Config-r17 · OPTIONAL
since v17.1.0
Contains the IE SDT-Config as generated entirely by the last serving gNB. This field is only used during the SDT procedure and the RNA update procedure with UE context relocation as defined in TS 38.300 [2], clause 18.2 and 9.2.2.5 respectively.
srs-PosRRC-InactiveValidityAreaPreConfigList-r18
SRS-PosRRC-InactiveValidityAreaPreConfigList-r18 · OPTIONAL
since v18.2.0
Contains the IE SRS-PosRRC-InactiveValidityAreaPreConfigList as generated entirely by the last serving gNB. This field is only used UE is preconfigured with SRS for positioning with validity area and during the RNA update procedure with UE context relocation as defined in TS 38.300 [2], clause 18.2 and 9.2.2.5 respectively.

Used by (1)

Uses (4)

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