specviewer.org TS 38.331 ASN.1 index HandoverPreparationInformation

HandoverPreparationInformation

inter-node RRC message · TS 38.331 v19.4.0 (2026-09) · clause 11.2.2

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

First seen v15.0.0 (2018-01) · Last changed v15.3.0 (2018-09), in HandoverPreparationInformation-IEs

Definition

This message is used to transfer the NR RRC information used by the target gNB during handover preparation or UE context retrieval, e.g. in case of resume or re-establishment, including UE capability information. This message is also used for transferring the information between the CU and DU.

HandoverPreparationInformation ::=      SEQUENCE {
    criticalExtensions                      CHOICE {
        c1                                      CHOICE{
            handoverPreparationInformation          HandoverPreparationInformation-IEs,
            spare3 NULL, spare2 NULL, spare1 NULL
        },
        criticalExtensionsFuture            SEQUENCE {}
    }
}

Fields (7)

FieldDescription
criticalExtensions
CHOICE {
c1
CHOICE{
handoverPreparationInformation
HandoverPreparationInformation-IEs
since v15.1.0
spare3
NULL
spare2
NULL
spare1
NULL
criticalExtensionsFuture
SEQUENCE {}

Fields of HandoverPreparationInformation-IEs (5)

FieldDescription
ue-CapabilityRAT-List
UE-CapabilityRAT-ContainerList
since v15.1.0
The UE radio access related capabilities concerning RATs supported by the UE. A gNB that retrieves MRDC related capability containers ensures that the set of included MRDC containers is consistent w.r.t. the feature set related information.
sourceConfig
AS-Config · OPTIONAL Cond HO
since v15.1.0
The radio resource configuration as used in the source cell.
rrm-Config
RRM-Config · OPTIONAL
since v15.1.0
Local RAN context used mainly for RRM purposes.
as-Context
AS-Context · OPTIONAL
since v15.1.0
Local RAN context required by the target gNB or DU.
nonCriticalExtension
SEQUENCE {} · OPTIONAL
since v15.1.0

Uses (1)

In the viewer