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Content for  TS 38.413  Word version:  18.0.0

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9.2.3  UE Mobility Management Messagesp. 156

9.2.3.1  HANDOVER REQUIREDp. 156

This message is sent by the source NG-RAN node to the AMF to request the preparation of resources at the target.
Direction:
NG-RAN node → AMF.
IE/Group Name Presence Range IE type and reference Semantics description Criticality Assigned Criticality
Message TypeM 9.3.1.1YESreject
AMF UE NGAP IDM 9.3.3.1YESreject
RAN UE NGAP IDM 9.3.3.2YESreject
Handover TypeM 9.3.1.22YESreject
CauseM 9.3.1.2YESignore
Target IDM 9.3.1.25YESreject
Direct Forwarding Path AvailabilityO 9.3.1.64YESignore
PDU Session Resource List1YESreject
>PDU Session Resource Item1..<maxnoofPDUSessions>-
>>PDU Session IDM 9.3.1.50-
>>Handover Required TransferMOCTET STRINGContaining the Handover Required Transfer IE specified in subclause 9.3.4.14.-
Source to Target Transparent ContainerM 9.3.1.20YESreject
Range bound Explanation
maxnoofPDUSessionsMaximum no. of PDU sessions allowed towards one UE. Value is 256.
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9.2.3.2  HANDOVER COMMANDp. 156

This message is sent by the AMF to inform the source NG-RAN node that resources for the handover have been prepared at the target side.
Direction:
AMF→ NG-RAN node.
IE/Group Name Presence Range IE type and reference Semantics description Criticality Assigned Criticality
Message TypeM 9.3.1.1YESreject
AMF UE NGAP IDM 9.3.3.1YESreject
RAN UE NGAP IDM 9.3.3.2YESreject
Handover TypeM 9.3.1.22YESreject
NAS Security Parameters from NG-RANC-iftoEPSUTRA 9.3.3.26YESreject
PDU Session Resource Handover List0..1YESignore
>PDU Session Resource Handover Item1..<maxnoofPDUSessions>-
>>PDU Session IDM 9.3.1.50-
>>Handover Command TransferMOCTET STRINGContaining the Handover Command Transfer IE specified in subclause 9.3.4.10.-
PDU Session Resource to Release List0..1YESignore
>PDU Session Resource to Release Item1..<maxnoofPDUSessions>-
>>PDU Session IDM 9.3.1.50-
>>Handover Preparation Unsuccessful TransferMOCTET STRINGContaining the Handover Preparation Unsuccessful Transfer IE specified in subclause 9.3.4.18.-
Target to Source Transparent ContainerM 9.3.1.21YESreject
Criticality DiagnosticsO 9.3.1.3YESignore
Range bound Explanation
maxnoofPDUSessionsMaximum no. of PDU sessions allowed towards one UE. Value is 256.
Condition Explanation
iftoEPSUTRA This IE shall be present if the Handover Type IE is set to the value "5GStoEPS" or "5GtoUTRA".
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9.2.3.3  HANDOVER PREPARATION FAILUREp. 157

This message is sent by the AMF to inform the source NG-RAN node that the Handover Preparation has failed.
Direction:
AMF → NG-RAN node.
IE/Group Name Presence Range IE type and reference Semantics description Criticality Assigned Criticality
Message TypeM 9.3.1.1YESreject
AMF UE NGAP IDM 9.3.3.1YESignore
RAN UE NGAP IDM 9.3.3.2YESignore
CauseM 9.3.1.2YESignore
Criticality DiagnosticsO 9.3.1.3YESignore
Target to Source Failure Transparent ContainerO 9.3.1.186YESignore
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9.2.3.4  HANDOVER REQUESTp. 158

This message is sent by the AMF to the target NG-RAN node to request the preparation of resources.
Direction:
AMF → NG-RAN node.
IE/Group Name Presence Range IE type and reference Semantics description Criticality Assigned Criticality
Message TypeM 9.3.1.1YESreject
AMF UE NGAP IDM 9.3.3.1YESreject
Handover TypeM 9.3.1.22YESreject
CauseM 9.3.1.2YESignore
UE Aggregate Maximum Bit RateM 9.3.1.58YESreject
Core Network Assistance Information for RRC INACTIVEO 9.3.1.15YESignore
UE Security Capabilities M 9.3.1.86YESreject
Security ContextM 9.3.1.88YESreject
New Security Context IndicatorO 9.3.1.55YESreject
NASCONAS-PDU
9.3.3.4
Refers to either the "Intra N1 mode NAS transparent container" or the "S1 mode to N1 mode NAS transparent container", the details of the IE definition and the encoding arespecified in TS 24.501.YESreject
PDU Session Resource Setup List1YESreject
>PDU Session Resource Setup Item1..<maxnoofPDUSessions>-
>>PDU Session ID M 9.3.1.50-
>>S-NSSAIM 9.3.1.24-
>>Handover Request TransferMOCTET STRINGContaining the PDU Session Resource Setup Request Transfer IE specified in subclause 9.3.4.1.-
>>PDU Session Expected UE Activity BehaviourOExpected UE Activity Behaviour
9.3.1.94
Expected UE Activity Behaviour for the PDU Session.YESignore
Allowed NSSAIM 9.3.1.31Indicates the S-NSSAIs permitted by the network.YESreject
Trace ActivationO 9.3.1.14YESignore
Masked IMEISVO 9.3.1.54YESignore
Source to Target Transparent ContainerM 9.3.1.20YESreject
Mobility Restriction ListO 9.3.1.85YESignore
Location Reporting Request TypeO 9.3.1.65YESignore
RRC Inactive Transition Report RequestO 9.3.1.91YESignore
GUAMIM 9.3.3.3YESreject
Redirection for Voice EPS Fallback O 9.3.1.116YESignore
CN Assisted RAN Parameters TuningO 9.3.1.119YESignore
SRVCC Operation PossibleO 9.3.1.128YESignore
IAB AuthorizedO 9.3.1.129YESreject
Enhanced Coverage RestrictionO 9.3.1.140YESignore
UE Differentiation InformationO 9.3.1.144YESignore
NR V2X Services AuthorizedO 9.3.1.146YESignore
LTE V2X Services AuthorizedO 9.3.1.147YESignore
NR UE Sidelink Aggregate Maximum Bit RateO 9.3.1.148This IE applies only if the UE is authorized for NR V2X services.YESignore
LTE UE Sidelink Aggregate Maximum Bit RateO 9.3.1.149This IE applies only if the UE is authorized for LTE V2X services.YESignore
PC5 QoS ParametersO 9.3.1.150This IE applies only if the UE is authorized for NR V2X services.YESignore
CE-mode-B RestrictedO 9.3.1.155YESignore
UE User Plane CIoT Support IndicatorO 9.3.1.160YESignore
Management Based MDT PLMN ListOMDT PLMN List
9.3.1.168
YESignore
UE Radio Capability IDO 9.3.1.142YESreject
Extended Connected TimeO 9.3.3.31YESignore
Time Synchronisation Assistance InformationO 9.3.1.220YESignore
UE Slice Maximum Bit Rate ListO 9.3.1.231YESignore
5G ProSe AuthorizedO 9.3.1.233YESignore
5G ProSe UE PC5 Aggregate Maximum Bit RateONR UE Sidelink Aggregate Maximum Bit Rate
9.3.1.148
This IE applies only if the UE is authorized for 5G ProSe services.YESignore
5G ProSe PC5 QoS ParametersO 9.3.1.234This IE applies only if the UE is authorized for 5G ProSe services.YESignore
Range bound Explanation
maxnoofPDUSessionsMaximum no. of PDU sessions allowed towards one UE. Value is 256.
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9.2.3.5  HANDOVER REQUEST ACKNOWLEDGEp. 161

This message is sent by the target NG-RAN node to inform the AMF about the prepared resources at the target.
Direction:
NG-RAN node → AMF.
IE/Group Name Presence Range IE type and reference Semantics description Criticality Assigned Criticality
Message TypeM 9.3.1.1YESreject
AMF UE NGAP IDM 9.3.3.1YESignore
RAN UE NGAP IDM 9.3.3.2Allocated at the target NG-RAN node.YESignore
PDU Session Resource Admitted List1YESignore
>PDU Session Resource Admitted Item1..<maxnoofPDUSessions>-
>>PDU Session ID M 9.3.1.50-
>>Handover Request Acknowledge TransferMOCTET STRINGContaining the Handover Request Acknowledge Transfer IE specified in subclause 9.3.4.11.-
PDU Session Resource Failed to Setup List0..1YESignore
>PDU Session Resource Failed to Setup Item1..<maxnoofPDUSessions>-
>>PDU Session IDM 9.3.1.50-
>>Handover Resource Allocation Unsuccessful TransferMOCTET STRINGContaining the Handover Resource Allocation Unsuccessful Transfer IE specified in subclause 9.3.4.19.-
Target to Source Transparent ContainerM 9.3.1.21YESreject
Criticality DiagnosticsO 9.3.1.3YESignore
NPN Access InformationO 9.3.3.46YESreject
RedCap IndicationO 9.3.1.228YESignore
Range bound Explanation
maxnoofPDUSessionsMaximum no. of PDU sessions allowed towards one UE. Value is 256.
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9.2.3.6  HANDOVER FAILUREp. 161

This message is sent by the target NG-RAN node to inform the AMF that the preparation of resources has failed.
Direction:
NG-RAN node → AMF.
IE/Group Name Presence Range IE type and reference Semantics description Criticality Assigned Criticality
Message TypeM 9.3.1.1YESreject
AMF UE NGAP IDM 9.3.3.1YESignore
CauseM 9.3.1.2YESignore
Criticality DiagnosticsO 9.3.1.3YESignore
Target to Source Failure Transparent ContainerO 9.3.1.186YESignore
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9.2.3.7  HANDOVER NOTIFYp. 162

This message is sent by the target NG-RAN node to inform the AMF that the UE has been identified in the target cell and the handover has been completed.
Direction:
NG-RAN node → AMF.
IE/Group Name Presence Range IE type and reference Semantics description Criticality Assigned Criticality
Message TypeM 9.3.1.1YESignore
AMF UE NGAP IDM 9.3.3.1YESreject
RAN UE NGAP IDM 9.3.3.2YESreject
User Location InformationM 9.3.1.16YESignore
Notify Source NG-RAN NodeOENUMERATED (NotifySource, …)YESignore
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9.2.3.8  PATH SWITCH REQUESTp. 163

This message is sent by the NG-RAN node to inform the AMF of the new serving NG-RAN node and to transfer some NG-U DL tunnel termination point(s) to the SMF via the AMF for one or multiple PDU session resources.
Direction:
NG-RAN node → AMF.
IE/Group Name Presence Range IE type and reference Semantics description Criticality Assigned Criticality
Message TypeM 9.3.1.1YESreject
RAN UE NGAP IDM 9.3.3.2YESreject
Source AMF UE NGAP IDMAMF UE NGAP ID
9.3.3.1
YESreject
User Location InformationM 9.3.1.16YESignore
UE Security CapabilitiesM 9.3.1.86YESignore
PDU Session Resource to be Switched in Downlink List1YESreject
>PDU Session Resource to be Switched in Downlink Item1..<maxnoofPDUSessions> -
>>PDU Session ID M 9.3.1.50-
>>Path Switch Request TransferMOCTET STRINGContaining the Path Switch Request Transfer IE specified in subclause 9.3.4.8.-
PDU Session Resource Failed to Setup List0..1YESignore
>PDU Session Resource Failed to Setup Item1..<maxnoofPDUSessions>-
>>PDU Session IDM 9.3.1.50-
>>Path Switch Request Setup Failed TransferMOCTET STRINGContaining the Path Switch Request Setup Failed Transfer IE specified in subclause 9.3.4.15.-
RRC Resume CauseORRC Establishment Cause
9.3.1.111
YESignore
RedCap IndicationO 9.3.1.228YESignore
Range bound Explanation
maxnoofPDUSessionsMaximum no. of PDU sessions allowed towards one UE. Value is 256.
Up

9.2.3.9  PATH SWITCH REQUEST ACKNOWLEDGEp. 164

This message is sent by the AMF to inform the NG-RAN node that the path switch has been successfully completed in the 5GC.
Direction:
AMF → NG-RAN node.
IE/Group Name Presence Range IE type and reference Semantics description Criticality Assigned Criticality
Message TypeM 9.3.1.1YESreject
AMF UE NGAP IDM 9.3.3.1YESignore
RAN UE NGAP IDM 9.3.3.2YESignore
UE Security CapabilitiesO 9.3.1.86YESreject
Security ContextM 9.3.1.88YESreject
New Security Context IndicatorO 9.3.1.55YESreject
PDU Session Resource Switched List1 YESignore
>PDU Session Resource Switched Item1..<maxnoofPDUSessions> -
>>PDU Session ID M 9.3.1.50-
>>Path Switch Request Acknowledge TransferMOCTET STRINGContaining the Path Switch Request Acknowledge Transfer IE specified in subclause 9.3.4.9.-
>>PDU Session Expected UE Activity BehaviourOExpected UE Activity Behaviour
9.3.1.94
Expected UE Activity Behaviour for the PDU Session.YESignore
PDU Session Resource Released List0..1YESignore
>PDU Session Resource Released Item1..<maxnoofPDUSessions>-
>>PDU Session IDM 9.3.1.50-
>>Path Switch Request Unsuccessful TransferMOCTET STRINGContaining the Path Switch Request Unsuccessful Transfer IE specified in subclause 9.3.4.20.-
Allowed NSSAIM 9.3.1.31Indicates the S-NSSAIs permitted by the network.YESreject
Core Network Assistance Information for RRC INACTIVEO 9.3.1.15YESignore
RRC Inactive Transition Report RequestO 9.3.1.91YESignore
Criticality DiagnosticsO 9.3.1.3YESignore
Redirection for Voice EPS Fallback O 9.3.1.116YESignore
CN Assisted RAN Parameters TuningO 9.3.1.119YESignore
SRVCC Operation PossibleO 9.3.1.128YESignore
Enhanced Coverage RestrictionO 9.3.1.140YESignore
Extended Connected TimeO 9.3.3.31YESignore
UE Differentiation InformationO 9.3.1.144YESignore
NR V2X Services AuthorizedO 9.3.1.146YESignore
LTE V2X Services AuthorizedO 9.3.1.147YESignore
NR UE Sidelink Aggregate Maximum Bit RateO 9.3.1.148This IE applies only if the UE is authorized for NR V2X services.YESignore
LTE UE Sidelink Aggregate Maximum Bit RateO 9.3.1.149This IE applies only if the UE is authorized for LTE V2X services.YESignore
PC5 QoS ParametersO 9.3.1.150This IE applies only if the UE is authorized for NR V2X services.YESignore
CE-mode-B RestrictedO 9.3.1.155YESignore
UE User Plane CIoT Support IndicatorO 9.3.1.160YESignore
UE Radio Capability IDO 9.3.1.142YESreject
Management Based MDT PLMN ListOMDT PLMN List
9.3.1.168
This IE is ignored if the Management Based MDT PLMN Modification List IE is present.YESignore
Time Synchronisation Assistance InformationO 9.3.1.220YESignore
5G ProSe AuthorizedO 9.3.1.233YESignore
5G ProSe UE PC5 Aggregate Maximum Bit RateONR UE Sidelink Aggregate Maximum Bit Rate
9.3.1.148
This IE applies only if the UE is authorized for 5G ProSe services.YESignore
5G ProSe PC5 QoS ParametersO 9.3.1.234This IE applies only if the UE is authorized for 5G ProSe services.YESignore
Management Based MDT PLMN Modification ListO 9.3.1.243YESignore
IAB AuthorizedO 9.3.1.129YESignore
Range bound Explanation
maxnoofPDUSessionsMaximum no. of PDU sessions allowed towards one UE. Value is 256.
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9.2.3.10  PATH SWITCH REQUEST FAILUREp. 167

This message is sent by the AMF to inform the NG-RAN node that a failure has occurred in the 5GC during the Path Switch Request procedure.
Direction:
AMF → NG-RAN node.
IE/Group Name Presence Range IE type and reference Semantics description Criticality Assigned Criticality
Message TypeM 9.3.1.1YESreject
AMF UE NGAP IDM 9.3.3.1YESignore
RAN UE NGAP IDM 9.3.3.2YESignore
PDU Session Resource Released List1YESignore
>PDU Session Resource Released Item1..<maxnoofPDUSessions>-
>>PDU Session IDM 9.3.1.50-
>>Path Switch Request Unsuccessful TransferMOCTET STRINGContaining the PDU session Path Switch Request Unsuccessful Transfer IE specified in subclause 9.3.4.20.-
Criticality DiagnosticsO 9.3.1.3YESignore
Range bound Explanation
maxnoofPDUSessionsMaximum no. of PDU sessions allowed towards one UE. Value is 256.
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9.2.3.11  HANDOVER CANCELp. 167

This message is sent by the source NG-RAN node to the AMF to request the cancellation of an ongoing handover.
Direction:
NG-RAN node → AMF.
IE/Group Name Presence Range IE type and reference Semantics description Criticality Assigned Criticality
Message TypeM 9.3.1.1YESreject
AMF UE NGAP IDM 9.3.3.1YESreject
RAN UE NGAP IDM 9.3.3.2YESreject
CauseM 9.3.1.2YESignore
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9.2.3.12  HANDOVER CANCEL ACKNOWLEDGEp. 167

This message is sent by the AMF to the source NG-RAN node to confirm that the ongoing handover was cancelled.
Direction:
AMF → NG-RAN node.
IE/Group Name Presence Range IE type and reference Semantics description Criticality Assigned Criticality
Message TypeM 9.3.1.1YESreject
AMF UE NGAP IDM 9.3.3.1YESignore
RAN UE NGAP IDM 9.3.3.2YESignore
Criticality DiagnosticsO 9.3.1.3YESignore
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9.2.3.13  UPLINK RAN STATUS TRANSFERp. 168

This message is sent by the source NG-RAN node to transfer the uplink PDCP-SN and HFN receiver status and the downlink PDCP SN and HFN transmitter status during intra 5GC NG-based handover.
Direction:
NG-RAN node → AMF.
IE/Group Name Presence Range IE type and reference Semantics description Criticality Assigned Criticality
Message TypeM 9.3.1.1YESignore
AMF UE NGAP IDM 9.3.3.1YESreject
RAN UE NGAP IDM 9.3.3.2YESreject
RAN Status Transfer Transparent ContainerM 9.3.1.108YESreject
Up

9.2.3.14  DOWNLINK RAN STATUS TRANSFERp. 168

This message is sent by the AMF to the target NG-RAN node to transfer the uplink PDCP-SN and HFN receiver status and the downlink PDCP SN and HFN transmitter status during intra 5GC NG-based handover.
Direction:
AMF → NG-RAN node
IE/Group Name Presence Range IE type and reference Semantics description Criticality Assigned Criticality
Message TypeM 9.3.1.1YESignore
AMF UE NGAP IDM 9.3.3.1YESreject
RAN UE NGAP IDM 9.3.3.2YESreject
RAN Status Transfer Transparent ContainerM 9.3.1.108YESreject
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9.2.3.15  HANDOVER SUCCESS |R16|p. 168

This message is sent by the AMF to the source NG-RAN node to indicate the successful access of the UE toward the target NG-RAN node.
Direction:
AMF → NG-RAN node.
IE/Group Name Presence Range IE type and reference Semantics description Criticality Assigned Criticality
Message TypeM 9.3.1.1YESignore
AMF UE NGAP IDM 9.3.3.1YESreject
RAN UE NGAP IDM 9.3.3.2YESreject
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9.2.3.16  UPLINK RAN EARLY STATUS TRANSFER |R16|p. 168

This message is sent by the source NG-RAN node to transfer the COUNT value(s) of the first forwarded downlink SDU(s) during NG DAPS Handover.
Direction:
NG-RAN node → AMF.
IE/Group Name Presence Range IE type and reference Semantics description Criticality Assigned Criticality
Message TypeM 9.3.1.1YESreject
AMF UE NGAP IDM 9.3.3.1YESreject
RAN UE NGAP IDM 9.3.3.2YESreject
Early Status Transfer Transparent ContainerM 9.3.1.190YESreject
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9.2.3.17  DOWNLINK RAN EARLY STATUS TRANSFER |R16|p. 169

This message is sent by the AMF to transfer the COUNT value(s) of the first forwarded downlink SDU(s) during NG DAPS Handover.
Direction:
AMF → NG-RAN node
IE/Group Name Presence Range IE type and reference Semantics description Criticality Assigned Criticality
Message TypeM 9.3.1.1YESignore
AMF UE NGAP IDM 9.3.3.1YESreject
RAN UE NGAP IDM 9.3.3.2YESreject
Early Status Transfer Transparent ContainerM 9.3.1.190YESreject
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