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Content for  TS 38.413  Word version:  18.0.0

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9.3.2  Transport Network Layer Related IEsp. 313

9.3.2.1  QoS Flow per TNL Information Listp. 313

This IE is used to provide a list of additional UP transport layer information for a split PDU session, along with the associated QoS flows.
IE/Group Name Presence Range IE type and reference Semantics description
QoS Flow per TNL Information Item1..<maxnoofMultiConnectivityMinusOne>
>QoS Flow per TNL InformationM 9.3.2.8
Range bound Explanation
maxnoofMultiConnectivityMinusOneMaximum no. of connectivity allowed for a UE minus one. Value is 3. The current version of the specification supports 1.
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9.3.2.2  UP Transport Layer Informationp. 313

This IE is used to provide the NG user plane transport layer information associated with a PDU session for an NG-RAN node - UPF pair. In this release it corresponds to an IP address and a GTP Tunnel Endpoint Identifier.
IE/Group Name Presence Range IE type and reference Semantics description
CHOICE UP Transport Layer InformationM
>GTP tunnel
>>Endpoint IP AddressMTransport Layer Address
9.3.2.4
>>GTP-TEIDM 9.3.2.5
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9.3.2.3  E-RAB IDp. 313

This IE is the identifier of the LTE E-RAB.
IE/Group Name Presence Range IE type and reference Semantics description
E-RAB IDMINTEGER (0..15, …)
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9.3.2.4  Transport Layer Addressp. 314

This IE is an IP address.
IE/Group Name Presence Range IE type and reference Semantics description
Transport Layer AddressMBIT STRING (SIZE(1..160, …))The Radio Network Layer is not supposed to interpret the address information. It should pass it to the Transport Layer for interpretation.
For details, see TS 38.414.
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9.3.2.5  GTP-TEIDp. 314

This IE is the GTP Tunnel Endpoint Identifier to be used for the user plane transport between the NG-RAN node and the UPF.
IE/Group Name Presence Range IE type and reference Semantics description
GTP-TEIDMOCTET STRING (SIZE(4))For details and range, see TS 29.281.
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9.3.2.6  CP Transport Layer Informationp. 314

This IE is used to provide the NG control plane transport layer information associated with an NG-RAN node - AMF pair.
IE/Group Name Presence Range IE type and reference Semantics description Criticality Assigned Criticality
CHOICE CP Transport Layer Information
>Endpoint-IP-address-
>>Endpoint IP AddressMTransport Layer Address
9.3.2.4
-
>Endpoint-IP-address-and-portYESreject
>>Endpoint IP AddressMTransport Layer Address
9.3.2.4
-
>>Port NumberMOCTET STRING (SIZE(2))-
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9.3.2.7  TNL Association Listp. 314

This IE contains a list of TNL associations. It is used for example to indicate failed TNL association(s).
IE/Group Name Presence Range IE type and reference Semantics description
TNL Association Item1..<maxnoofTNLAssociations>
>TNL Association AddressMCP Transport Layer Information
9.3.2.6
>CauseM 9.3.1.2
Range bound Explanation
maxnoofTNLAssociationsMaximum no. of TNL Associations between the NG-RAN node and the AMF. Value is 32.
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9.3.2.8  QoS Flow per TNL Informationp. 315

This IE indicates the NG-U transport layer information and associated list of QoS flows.
IE/Group Name Presence Range IE type and reference Semantics description
UP Transport Layer InformationM 9.3.2.2
Associated QoS Flow ListM 9.3.1.99
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9.3.2.9  TNL Association Usagep. 315

This IE indicates the usage of the TNL association.
IE/Group Name Presence Range IE type and reference Semantics description
TNL Association UsageOENUMERATED (ue, non-ue, both, …)Indicates whether the TNL association is only used for UE-associated signalling, or non-UE-associated signalling, or both.
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9.3.2.10  TNL Address Weight Factorp. 315

This IE indicates the weight factor of the TNL address.
IE/Group Name Presence Range IE type and reference Semantics description
TNL Address Weight FactorMINTEGER (0..255)Value 0 indicates the TNL address is not permitted for the initial NGAP message. If the value for each TNL address is the same, it indicates the deployments that rely solely on 5GC-based load balancing.
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9.3.2.11  UP Transport Layer Information Pair Listp. 315

This IE is used to provide a list of uplink UP transport layer information and associated downlink UP transport layer information for a split PDU session.
IE/Group Name Presence Range IE type and reference Semantics description
UP Transport Layer Information Pair Item1..<maxnoofMultiConnectivityMinusOne>
>UL NG-U UP TNL InformationMUP Transport Layer Information
9.3.2.2
>DL NG-U UP TNL InformationMUP Transport Layer Information
9.3.2.2
Range bound Explanation
maxnoofMultiConnectivityMinusOneMaximum no. of connectivity allowed for a UE minus one. Value is 3. The current version of the specification supports 1.
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9.3.2.12  UP Transport Layer Information Listp. 315

This IE is used to provide a list of additional UP transport layer information for a split PDU session.
IE/Group Name Presence Range IE type and reference Semantics description Criticality Assigned Criticality
UP Transport Layer Information Item1..<maxnoofMultiConnectivityMinusOne>-
>NG-U UP TNL InformationMUP Transport Layer Information
9.3.2.2
-
>Common Network InstanceO 9.3.1.120YESignore
Range bound Explanation
maxnoofMultiConnectivityMinusOneMaximum no. of connectivity allowed for a UE minus one. Value is 3. The current version of the specification supports 1.
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9.3.2.13  QoS Flow List with Data Forwardingp. 316

This IE is used to provide a list of QoS flows with indication if forwarding is accepted.
IE/Group Name Presence Range IE type and reference Semantics description Criticality Assigned Criticality
QoS Flow Item with Data Forwarding1..<maxnoofQoSFlows>-
>QoS Flow IdentifierM 9.3.1.51-
>Data Forwarding AcceptedO 9.3.1.62This IE is included for the QoS flows in the PDU session to be forwarded over the PDU session forwarding tunnel.
It may be included for the QoS flows in the PDU session to be forwarded over the DRB forwarding tunnel(s).
-
>Current QoS Parameters Set IndexOAlternative QoS Parameters Set Index
9.3.1.152
Index to the currently fulfilled alternative QoS parameters setYESignore
Range bound Explanation
maxnoofQoSFlowsMaximum no. of QoS flows allowed within one PDU session. Value is 64.
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9.3.2.14  URI |R16|p. 316

This IE is an URI.
IE/Group Name Presence Range IE type and reference Semantics description
URIMVisibleStringString representing URI (Uniform Resource Identifier)
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9.3.2.15  MBS Session TNL Information 5GC |R17|p. 317

This IE provides 5GC TNL information for location dependent and location independent MBS sessions.
IE/Group Name Presence Range IE type and reference Semantics description
CHOICE Session TypeM
>location independent
>>Shared NG-U Multicast TNL InformationM 9.3.2.16
>location dependent
>>MBS Session TNL Information 5GC List1
>>>MBS Session TNL Information 5GC Item1..<maxnoofMBSServiceAreaInformation>
>>>>MBS Area Session IDM 9.3.1.207
>>>>Shared NG-U Multicast TNL InformationM 9.3.2.16
Range bound Explanation
maxnoofMBSServiceAreaInformationMaximum no. of MBS Service Area Information. Value is 256.
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9.3.2.16  Shared NG-U Multicast TNL Information |R17|p. 317

This IE provides the shared NG user plane transport layer information associated with an MBS session at the 5GC.
IE/Group Name Presence Range IE type and reference Semantics description
IP Multicast AddressMTransport Layer Address
9.3.2.4
IP Source AddressMTransport Layer Address
9.3.2.4
GTP-TEID at 5GCMGTP-TEID
9.3.2.5
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9.3.2.17  MBS Session TNL Information NG-RAN |R17|p. 317

This IE provides NG-RAN TNL information for location dependent and location independent broadcast MBS sessions.
IE/Group Name Presence Range IE type and reference Semantics description
CHOICE Session TypeM
>location independent
>Shared NG-U Unicast TNL InformationMUP Transport Layer Information
9.3.2.2
>location dependent
>>MBS Session TNL Information NG-RAN List1
>>>MBS Session TNL Information NG-RAN Item1..<maxnoofMBSServiceAreaInformation>
>>>>MBS Area Session IDM 9.3.1.207
>>>>Shared NG-U Unicast TNL InformationOUP Transport Layer Information
9.3.2.2
Range bound Explanation
maxnoofMBSServiceAreaInformationMaximum no. of MBS Service Area Information. Value is 256.
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