specviewer.org TS 38.331 ASN.1 index VarShortMAC-Input

VarShortMAC-Input

RRC UE variable · TS 38.331 v19.4.0 (2026-09) · clause 7.4

VarShortMAC-Input is a UE variable of 3GPP TS 38.331 (38331), the 5G NR Radio Resource Control (RRC) protocol.

First seen v15.3.0 (2018-09) · Not changed since

Definition

The UE variable VarShortMAC-Input specifies the input used to generate the shortMAC-I during RRC Connection Reestablishment procedure.

VarShortMAC-Input   ::=                 SEQUENCE {
    sourcePhysCellId                        PhysCellId,
    targetCellIdentity                      CellIdentity,
    source-c-RNTI                           RNTI-Value
}

Fields (3)

FieldDescription
sourcePhysCellId
PhysCellId
Set to the physical cell identity of the PCell the UE was connected to prior to the reestablishment.
targetCellIdentity
CellIdentity
An input variable used to calculate the shortMAC-I . Set to the cellIdentity of the first PLMN-Identity in the PLMN-IdentityInfoList broadcasted in SIB1 of the target cell i.e. the cell the UE is trying to reestablish the connection.
source-c-RNTI
RNTI-Value
Set to C-RNTI that the UE had in the PCell it was connected to prior to the reestablishment.

Uses (3)

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