Section: – MobilityFromNRCommand
Content: The MobilityFromNRCommand message is used to command handover from NR to E-UTRA/EPC, E-UTRA/5GC or UTRA-FDD. Signalling radio bearer: SRB1 RLC-SAP: AM Logical channel: DCCH Direction: Network to UE MobilityFromNRCommand message -- ASN1START -- TAG-MOBILITYFROMNRCOMMAND-START MobilityFromNRCommand ::= SEQUENCE { rrc-TransactionIdentifier RRC-TransactionIdentifier, criticalExtensions CHOICE { mobilityFromNRCommand MobilityFromNRCommand-IEs, criticalExtensionsFuture SEQUENCE {} } } MobilityFromNRCommand-IEs ::= SEQUENCE { targetRAT-Type ENUMERATED { eutra, utra-fdd-v1610, spare2, spare1, ...}, targetRAT-MessageContainer OCTET STRING, nas-SecurityParamFromNR OCTET STRING OPTIONAL, -- Cond HO-ToEPCUTRAN lateNonCriticalExtension OCTET STRING OPTIONAL, nonCriticalExtension MobilityFromNRCommand-v1610-IEs OPTIONAL } MobilityFromNRCommand-v1610-IEs ::= SEQUENCE { voiceFallbackIndication-r16 ENUMERATED {true} OPTIONAL, -- Need N nonCriticalExtension MobilityFromNRCommand-v1800-IEs OPTIONAL } MobilityFromNRCommand-v1800-IEs ::= SEQUENCE { successHO-Config-r18 SetupRelease {SuccessHO-Config-r17} OPTIONAL, nonCriticalExtension SEQUENCE {} OPTIONAL } -- TAG-MOBILITYFROMNRCOMMAND-STOP -- ASN1STOP NOTE 1: The correspondence between the value of the targetRAT-Type, the standard to apply, and the message contained within the targetRAT-MessageContainer is shown in the table below: