specviewer.org TS 38.331 ASN.1 index TMGI-r17

TMGI (TMGI-r17)

RRC IE · TS 38.331 v19.4.0 (2026-09) · clause 6.3.6

TMGI-r17 is an RRC information element of 3GPP TS 38.331 (38331), the 5G NR Radio Resource Control (RRC) protocol.

First seen v17.0.0 (2022-04) · Last changed v17.1.0 (2022-07)

Definition

The IE TMGI is used to identify the MBS session.

TMGI-r17 ::=                     SEQUENCE {
    plmn-Id-r17                      CHOICE {
        plmn-Index                       INTEGER (1..maxPLMN),
        explicitValue                    PLMN-Identity
    },
    serviceId-r17                    OCTET STRING (SIZE (3))
}

Fields (4)

FieldDescription
plmn-Id-r17
CHOICE {
plmn-Index
INTEGER (1..maxPLMN)
since v17.1.0
PLMN index or NPN index according to the plmn-IdentityInfoList and npn-IdentityInfoList fields included in SIB1 . If this field is included in the MRB-ToAddMod-r17 , the UE translates the plmn-Index into the PLMN Identity or SNPN Identity based on the configuration in SIB1 (which is the SIB1 of the target cell in case of handover). The explicitValue is not used for MBS service(s) of an SNPN.
explicitValue
PLMN-Identity
since v17.1.0
serviceId-r17
OCTET STRING (SIZE (3))
Uniquely identifies the identity of an MBS service within a PLMN. The field contains octet 3- 5 of the IE Temporary Mobile Group Identity (TMGI) as defined in TS 24.008 [38]. The first octet contains the third octet of the TMGI, the second octet contains the fourth octet of the TMGI and so on.

Used by (5)

Uses (2)

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