Message Type

M

9.2.13

YES

reject

MeNB UE X2AP ID

M

eNB UE X2AP ID

9.2.24

Allocated at the MeNB

YES

reject

NR UE Security Capabilities

M

9.2.107

YES

reject

SgNB Security Key

M

9.2.101

The S-KgNB which is provided by the MeNB, see TS 33.401 [18].

YES

reject

SgNB UE Aggregate Maximum Bit Rate

M

UE Aggregate Maximum Bit Rate

9.2.12

The UE Aggregate Maximum Bit Rate is split into MeNB UE Aggregate Maximum Bit Rate and SgNB UE Aggregate Maximum Bit Rate which are enforced by MeNB and en-gNB respectively.

YES

reject

Selected PLMN

O

PLMN Identity

9.2.4

The selected PLMN of the SCG in the en-gNB.

YES

ignore

Handover Restriction List

O

9.2.3

YES

ignore

E-RABs To Be Added List

1

YES

reject

>E-RABs To Be Added Item

1 .. <maxnoofBearers>

EACH

reject

>>E-RAB ID

M

9.2.23

–

>>DRB ID

M

9.2.122

–

>>EN-DC Resource Configuration

M

EN-DC Resource Configuration
9.2.108

Indicates the PDCP and Lower Layer MCG/SCG configuration.

–

>>CHOICE Resource Configuration

M

>>>PDCP present in SN

This choice tag is used if the PDCP at SgNB IE in the EN-DC Resource Configuration IE is set to the value "present".

>>>>Full E-RAB Level QoS Parameters

M

E-RAB Level QoS Parameters 9.2.9

Includes the E-RAB level QoS parameters as received on S1-MME.

–

>>>>Maximum MCG admittable E-RAB Level QoS Parameters

C-ifMCGandSCGpresent_GBR

GBR QoS Information 9.2.10

Includes the GBR QoS Information admittable by the MCG.

–

>>>>DL Forwarding

O

9.2.5

–

>>>>MeNB DL GTP Tunnel Endpoint at MCG

C-ifMCGpresent

GTP Tunnel Endpoint 9.2.1

MeNB endpoint of the X2-U transport bearer at MCG. For delivery of DL PDCP PDUs.

–

>>>>S1 UL GTP Tunnel Endpoint

M

GTP Tunnel Endpoint 9.2.1

SGW endpoint of the S1-U transport bearer. For delivery of UL PDUs from the en-gNB.

–

>>>>RLC Mode

O

RLC Mode

9.2.119

Indicates the RLC mode at the MeNB for PDCP transfer to en-gNB.

YES

ignore

>>>>Bearer Type

O

9.2.92

YES

ignore

>>>>Ethernet Type

O

9.2.157

YES

ignore

>>>>Source DL Forwarding IP Address

O

BIT STRING (1..160, …)

Identifies the TNL address used by the source MN for data forwarding.

YES

ignore

>>>>Source Node DL Forwarding IP Address

O

BIT STRING (1..160, …)

This IE is present only for the case of SA to EN-DC handover and it is used to identify the TNL address allocated by the source NG-RAN node for data forwarding.

YES

ignore

>>>>Security Indication

O

9.2.181

YES

reject

>>>PDCP not present in SN

This choice tag is used if the PDCP at SgNB IE in the EN-DC Resource Configuration IE is set to the value "not present".

>>>>Requested SCG E-RAB Level QoS Parameters

M

E-RAB Level QoS Parameters 9.2.9

Includes E-RAB level QoS parameters requested to be provided by the SCG.

–

>>>>MeNB UL GTP Tunnel Endpoint at PDCP

M

GTP Tunnel Endpoint 9.2.1

MeNB endpoint of the X2-U transport bearer. For delivery of UL PDCP PDUs.

–

>>>>Secondary MeNB UL GTP Tunnel Endpoint at PDCP

O

GTP Tunnel Endpoint 9.2.1

MeNB endpoint of the X2-U transport bearer. For delivery of UL PDCP PDUs in case of PDCP duplication.

–

>>>>RLC Mode

M

RLC Mode

9.2.119

Indicates the RLC mode to be used in the assisting node.

–

>>>>UL Configuration

C-ifMCGandSCGpresent

9.2.118

Information about UL usage in the en-gNB.

–

>>>>UL PDCP SN Length

O

PDCP SN Length

9.2.133

Indicates the PDCP SN length of the bearer for the UL.

YES

ignore

>>>>DL PDCP SN Length

O

PDCP SN Length

9.2.133

Indicates the PDCP SN length of the bearer for the DL.

YES

ignore

>>>>Duplication activation

O

9.2.137

Indicated the initial staus of PDCP duplication.

YES

ignore

MeNB to SgNB Container

M

OCTET STRING

Includes the CG-ConfigInfo message as defined in TS 38.331 [31].

YES

reject

SgNB UE X2AP ID

O

en-gNB UE X2AP ID

9.2.100

Allocated at the en-gNB.

YES

reject

Expected UE Behaviour

O

9.2.70

YES

ignore

MeNB UE X2AP ID Extension

O

Extended eNB UE X2AP ID

9.2.86

Allocated at the MeNB.

YES

reject

Requested split SRBs

O

ENUMERATED (srb1, srb2, srb1&2, …)

Indicates that resources for Split SRB are requested.

YES

reject

MeNB Resource Coordination Information

O

9.2.116

Information used to coordinate resources utilisation between MeNB and en-gNB.

YES

ignore

SGNB Addition Trigger Indication

O

ENUMERATED (SN change, inter-eNB HO, intra-eNB HO, …)

This IE indicates the trigger for SGNB Addition procedure.

YES

reject

Subscriber Profile ID for RAT/Frequency priority

O

9.2.25

YES

ignore

MeNB Cell ID

M

ECGI

9.2.14

Indicates the cell ID for PCell in MeNB.

YES

reject

Desired Activity Notification Level

O

9.2.141

YES

ignore

Trace Activation

O

9.2.2

YES

ignore

Location Information at SgNB reporting

O

ENUMERATED (pscell, …)

Indicates that the user’s location information is to be provided.

YES

ignore

Masked IMEISV

O

9.2.69

YES

ignore

Additional RRM Policy Index

O

9.2.25a

YES

ignore

Requested Fast MCG recovery via SRB3

O

ENUMERATED (true, …)

Indicates that the resources for fast MCG recovery via SRB3 are requested.

YES

ignore

UE Context Reference at Source NG-RAN

O

RAN UE NGAP ID 9.2.152

YES

ignore

Management Based MDT Allowed

O

9.2.59

YES

ignore

Management Based MDT PLMN List

O

MDT PLMN List

9.2.64

YES

ignore

UE Radio Capability ID

O

9.2.171

YES

reject

IAB Node Indication

O

ENUMERATED (true, …)

YES

reject

Source NG-RAN Node ID

O

Global RAN Node ID

9.2.176

YES

ignore

UE History Information

O

9.2.38

YES

ignore

UE History Information from the UE

O

OCTET STRING

VisitedCellInfoList contained in the UEInformationResponse message (TS 36.331 [9]).

YES

ignore

PScell Change History

O

ENUMERATED (reporting full history, …)

YES

ignore

CHO Information SN Addition

O

YES

reject

>Source eNB ID

M

Global eNB ID

9.2.22

>Source eNB UE X2AP ID

M

eNB UE X2AP ID

9.2.24

Allocated at the source MeNB

>Source eNB UE X2AP ID Extension

O

Extended eNB UE X2AP ID

9.2.86

Allocated at the source MeNB

>Estimated Arrival Probability

O

INTEGER (1..100)

SCG Activation Request

O

9.2.179

YES

ignore

Conditional PSCell Addition Information Request

O

YES

reject

>Maximum Number of PSCells To Prepare

M

INTEGER (1..8, …)

Indicates the maximum number of PSCells that the target may prepare.

–

>Estimated Arrival Probability

O

INTEGER (1..100)

Indicates the arrival probability for the UE towards the candidate target en-gNB.

–

maxnoofBearers

Maximum no. of E-RABs. Value is 256.

ifMCGandSCGpresent

This IE shall be present if, for the E-RAB requested to be added, the MCG resources and SCG resources IEs in the EN-DC Resource Configuration IE are set to the value "present".

ifMCGpresent

This IE shall be present if, for the E-RAB requested to be added, the MCG resources IE in the EN-DC Resource Configuration IE is set to the value "present".

C-ifMCGandSCGpresent_GBR

This IE shall be present if, for the E-RAB requested to be added, the MCG resources and SCG resources IEs in the EN-DC Resource Configuration IE are set to the value "present", and GBR QoS Information IE is present in Full E-RAB Level QoS Parameters IE.

Message Type

M

9.2.13

YES

reject

MeNB UE X2AP ID

M

eNB UE X2AP ID

9.2.24

Allocated at the MeNB.

YES

reject

SgNB UE X2AP ID

M

en-gNB UE X2AP ID

9.2.100

Allocated at the en-gNB.

YES

reject

E-RABs Admitted To Be Added List

1

YES

ignore

>E-RABs Admitted To Be Added Item

1 .. <maxnoofBearers>

EACH

ignore

>>E-RAB ID

M

9.2.23

–

>>EN-DC Resource Configuration

M

EN-DC Resource Configuration
9.2.108

Indicates the PDCP and Lower Layer MCG/SCG configuration.

–

>>CHOICE Resource Configuration

M

>>>PDCP present in SN

This choice tag is used if the PDCP at SgNB IE in the EN-DC Resource Configuration IE is set to the value "present".

>>>>S1 DL GTP Tunnel Endpoint at the SgNB

M

GTP Tunnel Endpoint 9.2.1

en-gNB endpoint of the S1 transport bearer. For delivery of DL PDUs.

–

>>>>SgNB UL GTP Tunnel Endpoint at PDCP

C-ifMCGpresent

GTP Tunnel Endpoint 9.2.1

en-gNB endpoint of the X2-U transport bearer at PDCP. For delivery of UL PDCP PDUs.

–

>>>>RLC Mode

C-ifMCGpresent

RLC Mode

9.2.119

Indicates the RLC mode.

–

>>>>DL Forwarding GTP Tunnel Endpoint

O

GTP Tunnel Endpoint 9.2.1

Identifies the transport bearer used for forwarding of DL PDUs

–

>>>>UL Forwarding GTP Tunnel Endpoint

O

GTP Tunnel Endpoint 9.2.1

Identifies the transport bearer used for forwarding of UL PDUs

–

>>>>Requested MCG E-RAB Level QoS Parameters

C-ifMCGandSCGpresent_GBRpresent

E-RAB Level QoS Parameters 9.2.9

Includes E-RAB level QoS parameters requested to be provided by the MCG.

–

>>>>UL Configuration

C-ifMCGandSCGpresent

9.2.118

Information about UL usage in the MeNB.

–

>>>>UL PDCP SN Length

O

PDCP SN Length

9.2.133

Indicates the PDCP SN length of the bearer for the UL.

YES

ignore

>>>>DL PDCP SN Length

O

PDCP SN Length

9.2.133

Indicates the PDCP SN length of the bearer for the DL.

YES

ignore

>>>>Source DL Forwarding IP Address

O

BIT STRING (1..160, …)

Identifies the TNL address used by the source node for data forwarding.

YES

ignore

>>>>Security Result

O

9.2.182

YES

ignore

>>>PDCP not present in SN

This choice tag is used if the PDCP at SgNB IE in the EN-DC Resource Configuration IE is set to the value "not present".

>>>>SgNB DL GTP Tunnel Endpoint at SCG

M

GTP Tunnel Endpoint 9.2.1

SgNB endpoint of the X2-U transport bearer at the SCG. For delivery of DL PDCP PDUs.

–

>>>>Secondary SgNB DL GTP Tunnel Endpoint at SCG

O

GTP Tunnel Endpoint 9.2.1

SgNB endpoint of the X2-U transport bearer at the SCG. For delivery of DL PDCP PDUs in case of PDCP duplication

–

>>>>LCID

O

9.2.138

LCID for the primary path in case of PDCP duplication

YES

ignore

E-RABs Not Admitted List

O

E-RAB List

9.2.28

A value for E-RAB ID shall only be present once in E-RABs Admitted List IE and in E-RABs Not Admitted List IE.

YES

ignore

SgNB to MeNB Container

M

OCTET STRING

Includes the CG-Config message or the CG-CandidateList message, as defined in TS 38.331[31].

YES

reject

Criticality Diagnostics

O

9.2.7

YES

ignore

MeNB UE X2AP ID Extension

O

Extended eNB UE X2AP ID

9.2.86

Allocated at the MeNB

YES

reject

Admitted split SRBs

O

ENUMERATED (srb1, srb2, srb1&2, …)

Indicates admitted SRBs

YES

reject

SgNB Resource Coordination Information

O

9.2.117

Information used to coordinate resources utilisation between en-gNB and MeNB.

YES

ignore

RRC config indication

O

9.2.132

Indicates the type of RRC configuration used at the en-gNB.

YES

reject

Location Information at SgNB

O

9.2.142

Contains information to support localisation of the UE

YES

ignore

Available fast MCG recovery via SRB3

O

ENUMERATED (true, …)

Indicates the fast MCG recovery via SRB3 is enabled.

YES

ignore

Direct Forwarding Path Availability

O

ENUMERATED (direct path available, …)

Indicates direct forwarding path is available between the target en-gNB and source NG-RAN node for SA to EN-DC handover.

YES

ignore

SCG Activation Status

O

9.2.178

YES

ignore

Conditional PSCell Addition Information Acknowledge

O

YES

ignore

>Candidate PSCell List

1

–

>>Candidate PSCell Item

1 .. <maxnoofPSCellCandidate>

–

>>>PSCell ID

M

NR CGI

9.2.111

–

maxnoofBearers

Maximum no. of E-RABs. Value is 256

maxnoofPSCellCandidate

Maximum no. of PSCells for CPAC. Value is 8.

ifMCGpresent

This IE shall be present if, for the E-RAB admitted to be added, the MCG resources IE in the EN-DC Resource Configuration IE is set to the value "present".

ifMCGandSCGpresent

This IE shall be present if, for the E-RAB admitted to be added, the MCG resources and SCG resources IEs in the EN-DC Resource Configuration IE are set to the value "present".

C-ifMCGandSCGpresent_GBRpresent

This IE shall be present if, for the E-RAB admitted to be added, the MCG resources and SCG resources IEs in the EN-DC Resource Configuration IE are set to the value "present", and the GBR QoS Information IE is present in the Requested MCG E-RAB Level QoS Parameters IE.

Message Type

M

9.2.13

YES

reject

MeNB UE X2AP ID

M

eNB UE X2AP ID

9.2.24

Allocated at the MeNB.

YES

reject

SgNB UE X2AP ID

O

en-gNB UE X2AP ID

9.2.100

Allocated at the en-gNB.

YES

reject

Cause

M

9.2.6

YES

ignore

Criticality Diagnostics

O

9.2.7

YES

ignore

MeNB UE X2AP ID Extension

O

Extended eNB UE X2AP ID

9.2.86

Allocated at the MeNB.

YES

reject

Message Type

M

9.2.13

YES

ignore

MeNB UE X2AP ID

M

eNB UE X2AP ID

9.2.24

Allocated at the MeNB.

YES

reject

SgNB UE X2AP ID

M

en-gNB UE X2AP ID

9.2.100

Allocated at the en-gNB.

YES

reject

Response Information

M

YES

ignore

>CHOICE Response Type

M

>>Configuration successfully applied

>>>MeNB to SgNB Container

O

OCTET STRING

Includes the NR RRCReconfigurationComplete message as defined in TS 38.331 [31].

–

>>Configuration rejected

>>>Cause

M

9.2.6

–

MeNB UE X2AP ID Extension

O

Extended eNB UE X2AP ID

9.2.86

Allocated at the MeNB

YES

reject

Message Type

M

9.2.13

YES

reject

MeNB UE X2AP ID

M

eNB UE X2AP ID

9.2.24

Allocated at the MeNB.

YES

reject

SgNB UE X2AP ID

M

en-gNB UE X2AP ID

9.2.100

Allocated at the en-gNB.

YES

reject

Cause

M

9.2.6

YES

ignore

Selected PLMN

O

PLMN Identity

9.2.4

The selected PLMN of the SCG in the en-gNB.

YES

ignore

Handover Restriction List

O

9.2.3

YES

ignore

SCG Configuration Query

O

9.2.103

YES

ignore

UE Context Information

0..1

YES

reject

>NR UE Security Capabilities

O

9.2.107

–

>SgNB Security Key

O

9.2.101

–

>SgNB UE Aggregate Maximum Bit Rate

O

UE Aggregate Maximum Bit Rate

9.2.12

–

>Lower Layer presence status change

O

9.2.145

–

>E-RABs To Be Added List

0..1

–

>>E-RABs To Be Added Item

1 .. <maxnoofBearers>

EACH

ignore

>>>E-RAB ID

M

9.2.23

–

>>>DRB ID

M

9.2.122

–

>>>EN-DC Resource Configuration

M

EN-DC Resource Configuration
9.2.108

Indicates the PDCP and Lower Layer MCG/SCG configuration.

–

>>>CHOICE Resource Configuration

M

>>>>PDCP present in SN

This choice tag is used if the PDCP at SgNB IE in the EN-DC Resource Configuration IE is set to the value "present".

–

>>>>>Full E-RAB Level QoS Parameters

M

E-RAB Level QoS Parameters 9.2.9

Includes E-RAB level QoS parameters as received on S1-MME.

–

>>>>>Maximum MCG admittable E-RAB Level QoS Parameters

C-ifMCGandSCGpresent_GBR

GBR QoS Information 9.2.10

Includes the GBR QoS Information admittable by the MCG.

–

>>>>>DL Forwarding

O

9.2.5

–

>>>>>MeNB DL GTP Tunnel Endpoint at MCG

C-ifMCGpresent

GTP Tunnel Endpoint 9.2.1

MeNB endpoint of the X2-U transport bearer at MCG. For delivery of DL PDCP PDUs.

–

>>>>>S1 UL GTP Tunnel Endpoint

M

GTP Tunnel Endpoint 9.2.1

SGW endpoint of the S1-U transport bearer. For delivery of UL PDUs from the en-gNB.

–

>>>>>RLC Mode

O

RLC Mode

9.2.119

Indicates the RLC mode at the MeNB for PDCP transfer to en-gNB.

YES

ignore

>>>>>Bearer Type

O

9.2.92

YES

ignore

>>>>>Ethernet Type

O

9.2.157

YES

ignore

>>>>>Security Indication

O

9.2.181

YES

reject

>>>>>Source DL Forwarding IP Address

O

BIT STRING (1..160, …)

Identifies the TNL address used by the source node for data forwarding.

YES

ignore

>>>>PDCP not present in SN

This choice tag is used if the PDCP at SgNB IE in the EN-DC Resource Configuration IE is set to the value "not present".

>>>>>Requested SCG E-RAB Level QoS Parameters

M

E-RAB Level QoS Parameters 9.2.9

Includes necessary E-RAB level QoS parameters requested to be provided by the SCG.

–

>>>>>MeNB UL GTP Tunnel Endpoint at PDCP

M

GTP Tunnel Endpoint 9.2.1

MeNB endpoint of the X2-U transport bearer. For delivery of UL PDCP PDUs.

–

>>>>>Secondary MeNB UL GTP Tunnel Endpoint at PDCP

O

GTP Tunnel Endpoint 9.2.1

MeNB endpoint of the X2-U transport bearer. For delivery of UL PDCP PDUs in case of PDCP duplication.

–

>>>>>RLC Mode

M

RLC Mode

9.2.119

Indicates the RLC mode to be used in the assisting node.

–

>>>>>UL Configuration

C-ifMCGandSCGpresent

9.2.118

Information about UL usage in the en-gNB.

–

>>>>>UL PDCP SN Length

O

PDCP SN Length

9.2.133

Indicates the PDCP SN length of the bearer for the UL.

YES

ignore

>>>>>DL PDCP SN Length

O

PDCP SN Length

9.2.133

Indicates the PDCP SN length of the bearer for the DL.

YES

ignore

>>>>>Duplication activation

O

9.2.137

Indicated the initial staus of PDCP duplication.

YES

ignore

>E-RABs To Be Modified List

0..1

–

>>E-RABs To Be Modified Item

1 .. <maxnoofBearers>

EACH

ignore

>>>E-RAB ID

M

9.2.23

–

>>>EN-DC Resource Configuration

M

EN-DC Resource Configuration
9.2.108

Indicates the PDCP and Lower Layer MCG/SCG configuration.

–

>>>CHOICE Resource Configuration

M

>>>>PDCP present in SN

This choice tag is used if the PDCP at SgNB IE in the EN-DC Resource Configuration IE is set to the value "present".

>>>>>Full E-RAB Level QoS Parameters

O

E-RAB Level QoS Parameters 9.2.9

Includes E-RAB level QoS parameters to be modified as received on S1-MME

–

>>>>>Maximum MCG admittable E-RAB Level QoS Parameters

O

GBR QoS Information 9.2.10

Includes the GBR QoS information admittable by the MCG

–

>>>>>MeNB GTP Tunnel Endpoint at MCG

O

GTP Tunnel Endpoint 9.2.1

MeNB endpoint of the X2-U transport bearer at MCG. For delivery of DL PDCP PDUs.

–

>>>>>S1 UL GTP Tunnel Endpoint

O

GTP Tunnel Endpoint 9.2.1

SGW endpoint of the S1-U transport bearer. For delivery of UL PDUs from the en-gNB.

–

>>>>>RLC Status

O

9.2.131

Indicates the RLC has been re-established..

>>>>PDCP not present in SN

This choice tag is used if the PDCP at SgNB IE in the EN-DC Resource Configuration IE is set to the value "not present".

>>>>>Requested SCG E-RAB Level QoS Parameters

O

E-RAB Level QoS Parameters 9.2.9

Includes E-RAB level QoS parameters requested to be provided by the SCG.

–

>>>>>MeNB UL GTP Tunnel Endpoint at PDCP

O

GTP Tunnel Endpoint 9.2.1

MeNB endpoint of the X2-U transport bearer. For delivery of UL PDCP PDUs.

–

>>>>>UL Configuration

O

9.2.118

Information about UL usage in the en-gNB.

–

>>>>>UL PDCP SN Length

O

PDCP SN Length

9.2.133

Shall be ignored by the en-gNB if received.

YES

ignore

>>>>>DL PDCP SN Length

O

PDCP SN Length

9.2.133

Shall be ignored by the en-gNB if received.

YES

ignore

>>>>>Secondary MeNB UL GTP Tunnel Endpoint at PDCP

O

GTP Tunnel Endpoint 9.2.1

MeNB endpoint of the X2-U transport bearer. For delivery of UL PDCP PDUs in case of PDCP duplication.

YES

ignore

>E-RABs To Be Released List

0..1

–

>>E-RABs To Be Released Item

1 .. <maxnoofBearers>

EACH

ignore

>>E-RAB ID

M

9.2.23

–

>>>EN-DC Resource Configuration

M

EN-DC Resource Configuration
9.2.108

Indicates the PDCP and Lower Layer MCG/SCG configuration.

–

>>>CHOICE Resource Configuration

M

>>>>PDCP present in SN

This choice tag is used if the PDCP at SgNB IE in the EN-DC Resource Configuration IE is set to the value "present".

>>>>>DL Forwarding GTP Tunnel Endpoint

O

GTP Tunnel Endpoint 9.2.1

Identifies the X2 transport bearer used for forwarding of DL PDUs

–

>>>>>UL Forwarding GTP Tunnel Endpoint

O

GTP Tunnel Endpoint 9.2.1

Identifies the X2 transport bearer. used for forwarding of UL PDUs

–

>>>>PDCP not present in SN

This choice tag is used if the PDCP at SgNB IE in the EN-DC Resource Configuration IE is set to the value "not present".

>Subscriber Profile ID for RAT/Frequency priority

O

9.2.25

YES

ignore

>Additional RRM Policy Index

O

9.2.25a

YES

ignore

MeNB to SgNB Container

O

OCTET STRING

Includes the CG-ConfigInfo message as defined in TS 38.331 [31].

YES

reject

MeNB UE X2AP ID Extension

O

Extended eNB UE X2AP ID

9.2.86

Allocated at the MeNB

YES

reject

MeNB Resource Coordination Information

O

9.2.116

Information used to coordinate resources utilisation between MeNB and en-gNB.

YES

ignore

Requested split SRBs

O

ENUMERATED (srb1, srb2, srb1&2, …)

Indicates that resources for Split SRB are requested.

YES

ignore

Requested split SRBs release

O

ENUMERATED (srb1, srb2, srb1&2, …)

Indicates that resources for Split SRB are requested to be released.

YES

ignore

Desired Activity Notification Level

O

9.2.141

YES

ignore

Location Information at SgNB reporting

O

ENUMERATED (pscell, …)

Indicates that the user’s location information is to be provided.

YES

ignore

MeNB Cell ID

O

ECGI

9.2.14

Indicates the cell ID for PCell in MeNB.

YES

ignore

Requested Fast MCG recovery via SRB3

O

ENUMERATED (true, …)

Indicates that the resources for fast MCG recovery via SRB3 are requested.

YES

ignore

Requested Fast MCG recovery via SRB3 Release

O

ENUMERATED (true, …)

Indicates that the resources for fast MCG recovery via SRB3 are requested to be released.

YES

ignore

SN triggered

O

ENUMERATED (True, …)

YES

ignore

IAB Node Indication

O

ENUMERATED (true, …)

YES

reject

PSCell History Information Retrieve

O

ENUMERATED (query, …)

Indicates that the SN UE history information is requested.

YES

ignore

UE History Information from the UE

O

OCTET STRING

VisitedCellInfoList contained in the UEInformationResponse message (TS 36.331 [9])

YES

ignore

CHO Information SN Modification

O

YES

ignore

>Conditional Reconfiguration

M

ENUMERATED (intra-MN-CHO, …)

–

–

>Estimated Arrival Probability

O

INTEGER (1..100)

–

–

SCG Activation Request

O

9.2.179

YES

ignore

Conditional PSCell Addition Information Modification Request

O

This IE may be sent to the target en-gNB.

YES

ignore

>Maximum Number of PSCells To Prepare

O

INTEGER (1..8, …)

Indicates the maximum number of PSCells that the target en-gNB may prepare.

–

>Estimated Arrival Probability

O

INTEGER (1..100)

Indicates the arrival probability for the UE towards the candidate target en-gNB.

–

Conditional PSCell Change Information Update

O

This IE may be sent to the source en-gNB.

YES

ignore

>Multiple Target SgNB Node List

1

–

>>Multiple Target SgNB Node Item

1 .. <maxnoofTargetSgNBs>

–

>>>Target SgNB ID

M

Global en-gNB ID

9.2.112

–

>>>Candidate PSCell List

1

–

>>>>Candidate PSCell Item

1 .. <maxnoofPSCellCandidate>

–

>>>>>PSCell ID

M

NR CGI

9.2.111

–

maxnoofBearers

Maximum no. of E-RABs. Value is 256

maxnoofPSCellCandidate

Maximum no. of PSCells for CPAC. Value is 8.

maxnoofTargetSgNBs

Maximum no. of the target SgNB nodes. Value is 8

ifMCGandSCGpresent

This IE shall be present if, for the E-RAB requested to be added, the MCG resources and SCG resources IEs in the EN-DC Resource Configuration IE are set to the value "present".

ifMCGpresent

This IE shall be present if, for the E-RAB requested to be added, the MCG resources IE in the EN-DC Resource Configuration IE is set to the value "present".

C-ifMCGandSCGpresent_GBR

This IE shall be present if, for the E-RAB requested to be added, the MCG resources and SCG resources IEs in the EN-DC Resource Configuration IE are set to the value "present", and GBR QoS Information IE is present in Full E-RAB Level QoS Parameters IE.

Message Type

M

9.2.13

YES

reject

MeNB UE X2AP ID

M

eNB UE X2AP ID

9.2.24

Allocated at the MeNB.

YES

ignore

SgNB UE X2AP ID

M

en-gNB UE X2AP ID

9.2.100

Allocated at the en-gNB.

YES

ignore

E-RABs Admitted To Be Added List

0..1

YES

ignore

>E-RABs Admitted To Be Added Item

1 .. <maxnoofBearers>

EACH

ignore

>>E-RAB ID

M

9.2.23

–

>>EN-DC Resource Configuration

M

EN-DC Resource Configuration
9.2.108

Indicates the PDCP and Lower Layer MCG/SCG configuration.

–

>>CHOICE Resource Configuration

M

>>>PDCP present in SN

This choice tag is used if the PDCP at SgNB IE in the EN-DC Resource Configuration IE is set to the value "present".

>>>>S1 DL GTP Tunnel Endpoint at the SgNB

M

GTP Tunnel Endpoint 9.2.1

SgNB endpoint of the S1 transport bearer. For delivery of DL PDUs.

–

>>>>SgNB UL GTP Tunnel Endpoint at PDCP

C-ifMCGpresent

GTP Tunnel Endpoint 9.2.1

SgNB endpoint of the X2-U transport bearer at PDCP. For delivery of UL PDCP PDUs.

–

>>>>RLC Mode

C-ifMCGpresent

RLC Mode

9.2.119

Indicates the RLC mode to be used at the assisting node.

–

>>>>DL Forwarding GTP Tunnel Endpoint

O

GTP Tunnel Endpoint 9.2.1

Identifies the X2 transport bearer used for forwarding of DL PDUs

–

>>>>UL Forwarding GTP Tunnel Endpoint

O

GTP Tunnel Endpoint 9.2.1

Identifies the X2 transport bearer used for forwarding of UL PDUs

–

>>>>Requested MCG E-RAB Level QoS Parameters

C-ifMCGandSCGpresent_GBRpresent

E-RAB Level QoS Parameters 9.2.9

Includes E-RAB level QoS parameters requested to be provided by the MCG.

–

>>>>UL Configuration

C-ifMCGandSCGpresent

9.2.118

Information about UL usage in the MeNB.

–

>>>>UL PDCP SN Length

O

PDCP SN Length

9.2.133

Indicates the PDCP SN length of the bearer for the UL.

YES

ignore

>>>>DL PDCP SN Length

O

PDCP SN Length

9.2.133

Indicates the PDCP SN length of the bearer for the DL.

YES

ignore

>>>>Security Result

O

9.2.182

YES

ignore

>>>>Source DL Forwarding IP Address

O

BIT STRING (1..160, …)

Identifies the TNL address used by the source node for data forwarding.

YES

ignore

>>>PDCP not present in SN

This choice tag is used if the PDCP at SgNB IE in the EN-DC Resource Configuration IE is set to the value "not present".

>>>>SgNB DL GTP Tunnel Endpoint at SCG

M

GTP Tunnel Endpoint 9.2.1

Endpoint of the X2-U transport bearer at the SCG. For delivery of DL PDCP PDUs.

–

>>>>Secondary SgNB DL GTP Tunnel Endpoint at SCG

O

GTP Tunnel Endpoint 9.2.1

Endpoint of the X2-U transport bearer at the SCG. For delivery of DL PDCP PDUs in case of PDCP duplication.

–

>>>>LCID

O

9.2.138

LCID for the primary path in case of PDCP duplication configured.

YES

ignore

E-RABs Admitted To Be Modified List

0..1

YES

ignore

>E-RABs Admitted To Be Modified Item

1 .. <maxnoofBearers>

EACH

ignore

>>E-RAB ID

M

9.2.23

–

>>EN-DC Resource Configuration

M

EN-DC Resource Configuration
9.2.108

Indicates the PDCP and Lower Layer MCG/SCG configuration.

–

>>CHOICE Resource Configuration

M

>>>PDCP present in SN

This choice tag is used if the PDCP at SgNB IE in the EN-DC Resource Configuration IE is set to the value "present".

>>>>S1 DL GTP Tunnel Endpoint

O

GTP Tunnel Endpoint 9.2.1

SgNB endpoint of the S1 transport bearer. For delivery of DL PDUs.

–

>>>>SgNB UL GTP Tunnel Endpoint at PDCP

O

GTP Tunnel Endpoint 9.2.1

SgNB endpoint of the X2-U transport bearer at PDCP. For delivery of UL PDCP PDUs.

–

>>>>Requested MCG E-RAB Level QoS Parameters

O

E-RAB Level QoS Parameters 9.2.9

Includes E-RAB level QoS parameters requested to be provided by the MCG.

–

>>>>UL Configuration

O

9.2.118

Information about UL usage in the MeNB.

–

>>>>UL PDCP SN Length

O

PDCP SN Length

9.2.133

Shall be ignored by the MeNB if received.

YES

ignore

>>>>DL PDCP SN Length

O

PDCP SN Length

9.2.133

Shall be ignored by the MeNB if received.

YES

ignore

>>>PDCP not present in SN

This choice tag is used if the PDCP at SgNB IE in the EN-DC Resource Configuration IE is set to the value "not present".

>>>>SgNB DL GTP Tunnel Endpoint at SCG

O

GTP Tunnel Endpoint 9.2.1

SgNB endpoint of the X2-U transport bearer at the SCG. For delivery of DL PDCP PDUs.

–

>>>>Secondary SgNB DL GTP Tunnel Endpoint at SCG

O

GTP Tunnel Endpoint 9.2.1

Endpoint of the X2-U transport bearer at the SCG. For delivery of DL PDCP PDUs in case of PDCP duplication.

YES

ignore

>>>>RLC Status

O

9.2.131

Indicates the RLC has been re-established.

YES

ignore

E-RABs Admitted To Be Released List

0..1

YES

ignore

>E-RABs Admitted To Be Released Item

1 .. <maxnoofBearers>

EACH

ignore

>>E-RAB ID

M

9.2.23

–

>>EN-DC Resource Configuration

M

EN-DC Resource Configuration
9.2.108

Indicates the PDCP and Lower Layer MCG/SCG configuration.

–

>>CHOICE Resource Configuration

M

Note: no further information contained in the IE container

E-RABs Not Admitted List

O

E-RAB List

9.2.28

A value for E-RAB ID shall only be present once in E-RABs Admitted List IE and in E-RABs Not Admitted List IE.

YES

ignore

SgNB to MeNB Container

O

OCTET STRING

Includes the NR CG-Config message or the CG-CandidateList message, as defined in TS 38.331 [31].

YES

ignore

Criticality Diagnostics

O

9.2.7

YES

ignore

MeNB UE X2AP ID Extension

O

Extended eNB UE X2AP ID

9.2.86

Allocated at the MeNB

YES

ignore

SgNB Resource Coordination Information

O

9.2.117

Information used to coordinate resources utilisation between en-gNB and MeNB.

YES

ignore

Admitted split SRBs

O

ENUMERATED (srb1, srb2, srb1&2, …)

Indicates admitted SRBs

YES

ignore

Admitted split SRBs release

O

ENUMERATED (srb1, srb2, srb1&2, …)

Indicates admitted SRBs release

YES

ignore

RRC config indication

O

9.2.132

Indicates the type of RRC configuration used at the en-gNB.

YES

reject

Location Information at SgNB

O

9.2.142

Contains information to support localisation of the UE

YES

ignore

Available fast MCG recovery via SRB3

O

ENUMERATED (true, …)

Indicates the fast MCG recovery via SRB3 isenabled.

YES

ignore

Release fast MCG recovery via SRB3

O

ENUMERATED (true, …)

Indicates the fast MCG recovery via SRB3 is released.

YES

ignore

SCG UE History Information

O

9.2.177

YES

ignore

SCG Activation Status

O

9.2.178

YES

ignore

Conditional PSCell Addition Information Modification Acknowledge

O

This IE may be sent from the target en-gNB.

YES

reject

>Candidate PSCell List

1

–

>>Candidate PSCell Item

1 .. <maxnoofPSCellCandidate>

–

>>>PSCell ID

M

NR CGI

9.2.111

–

maxnoofBearers

Maximum no. of E-RABs. Value is 256

maxnoofPSCellCandidate

Maximum no. of PSCells for CPAC. Value is 8.

ifMCGandSCGpresent

This IE shall be present if, for the E-RAB admitted to be added, the MCG resources and SCG resources IEs in the EN-DC Resource Configuration IE are set to the value "present".

ifMCGpresent

This IE shall be present if, for the E-RAB admitted to be added, the MCG resources IE in the EN-DC Resource Configuration IE is set to the value "present".

C-ifMCGandSCGpresent_GBRpresent

This IE shall be present if, for the E-RAB admitted to be added, the MCG resources and SCG resources IEs in the EN-DC Resource Configuration IE are set to the value "present", and the GBR QoS Information IE is present in the Requested MCG E-RAB Level QoS Parameters IE.

Message Type

M

9.2.13

YES

reject

MeNB UE X2AP ID

M

eNB UE X2AP ID

9.2.24

Allocated at the MeNB.

YES

ignore

SgNB UE X2AP ID

M

en-gNB UE X2AP ID

9.2.100

Allocated at the en-gNB.

YES

ignore

Cause

M

9.2.6

YES

ignore

Criticality Diagnostics

O

9.2.7

YES

ignore

MeNB UE X2AP ID Extension

O

Extended eNB UE X2AP ID

9.2.86

Allocated at the MeNB.

YES

ignore

Message Type

M

9.2.13

YES

reject

MeNB UE X2AP ID

M

eNB UE X2AP ID

9.2.24

Allocated at the MeNB.

YES

reject

SgNB UE X2AP ID

M

en-gNB UE X2AP ID

9.2.100

Allocated at the en-gNB.

YES

reject

Cause

M

9.2.6

YES

ignore

PDCP Change Indication

O

9.2.109

YES

ignore

E-RABs To Be Released List

0..1

YES

ignore

>E-RABs To Be Released Item

1 .. <maxnoofBearers>

EACH

ignore

>>E-RAB ID

M

9.2.23

–

>>Cause

M

9.2.6

–

>>RLC Mode

O

RLC Mode

9.2.119

Indicates the RLC mode at the en-gNB for PDCP transfer to MeNB.

YES

ignore

SgNB to MeNB Container

O

OCTET STRING

Includes the NR CG-Config message or the CG-CandidateList message, as defined in TS 38.331 [31].

YES

ignore

MeNB UE X2AP ID Extension

O

Extended eNB UE X2AP ID

9.2.86

Allocated at the MeNB

YES

reject

E-RABs To Be Modified List

0..1

YES

ignore

>E-RABs To Be Modified Item

1 .. <maxnoofBearers>

EACH

ignore

>>E-RAB ID

M

9.2.23

–

>>EN-DC Resource Configuration

M

EN-DC Resource Configuration
9.2.108

Indicates the PDCP and Lower Layer MCG/SCG configuration.

–

>>CHOICE Resource Configuration

M

>>>PDCP present in SN

This choice tag is used if the PDCP at SgNB IE in the EN-DC Resource Configuration IE is set to the value "present".

>>>>Requested MCG E-RAB Level QoS Parameters

O

E-RAB Level QoS Parameters 9.2.9

Includes E-RAB level QoS parameters requested to be provided by the MCG.

–

>>>>UL Configuration

O

9.2.118

Information about UL usage in the MeNB.

–

>>>>UL PDCP SN Length

O

PDCP SN Length

9.2.133

Shall be ignored by the MeNB if received.

YES

ignore

>>>>DL PDCP SN Length

O

PDCP SN Length

9.2.133

Shall be ignored by the MeNB if received.

YES

ignore

>>>>SgNB UL GTP Tunnel Endpoint at PDCP

O

GTP Tunnel Endpoint 9.2.1

SgNB endpoint of the X2-U transport bearer at PDCP. For delivery of UL PDCP PDUs.

–

>>>>S1 DL GTP Tunnel Endpoint at the SgNB

O

GTP Tunnel Endpoint 9.2.1

en-gNB endpoint of the S1 transport bearer. For delivery of DL PDUs.

–

>>>>New DRB ID Request

O

ENUMERATED (True, …)

YES

ignore

>>>PDCP not present in SN

This choice tag is used if the PDCP at SgNB IE in the EN-DC Resource Configuration IE is set to the value "not present".

>>>>SgNB DL GTP Tunnel Endpoint at SCG

O

GTP Tunnel Endpoint 9.2.1

SgNB endpoint of the X2-U transport bearer at the SCG. For delivery of DL PDCP PDUs.

–

>>>>Secondary SgNB DL GTP Tunnel Endpoint at SCG

O

GTP Tunnel Endpoint 9.2.1

SgNB endpoint of the X2-U transport bearer at the SCG. For delivery of DL PDCP PDUs for PDCP duplication.

–

>>>>RLC Status

O

9.2.131

Indicates the RLC has been re-established..

>>>>LCID

O

9.2.138

Indicate the LCID of the primary path in case of PDCP duplication

YES

ignore

SgNB Resource Coordination Information

O

9.2.117

Information used to coordinate resources utilisation between the en-gNB and the MeNB.

YES

ignore

RRC config indication

O

9.2.132

Indicates the type of RRC configuration used at the en-gNB.

YES

reject

Location Information at SgNB

O

9.2.142

Contains information to support localisation of the UE

YES

ignore

SCG UE History Information

O

9.2.177

YES

ignore

SCG Activation Request

O

9.2.179

YES

ignore

CPAC Information Required

O

This IE may be sent from the target en-gNB.

YES

ignore

>Candidate PSCell List

1

Indicates the full list of candidate PSCells prepared at the target en-gNB.

–

>>Candidate PSCell Item

1 .. <maxnoofPSCellCandidate>

–

>>>PSCell ID

M

NR CGI 9.2.111

–

SCG Reconfiguration Notification

O

ENUMERATED (executed, …)

YES

ignore

maxnoofBearers

Maximum no. of E-RABs. Value is 256

maxnoofPSCellCandidate

Maximum no. of PSCells for CPAC. Value is 8.

Message Type

M

9.2.13

YES

reject

MeNB UE X2AP ID

M

eNB UE X2AP ID

9.2.24

Allocated at the MeNB.

YES

ignore

SgNB UE X2AP ID

M

en-gNB UE X2AP ID

9.2.100

Allocated at the en-gNB.

YES

ignore

E-RABs Admitted To Be Modified List

0..1

YES

ignore

>E-RABs Admitted To Be Modified Item

1 .. <maxnoofBearers>

EACH

ignore

>>E-RAB ID

M

9.2.23

–

>>EN-DC Resource Configuration

M

EN-DC Resource Configuration
9.2.108

Indicates the PDCP and Lower Layer MCG/SCG configuration.

–

>>CHOICE Resource Configuration

M

>>>PDCP not present in SN

This choice tag is used if the PDCP at SgNB IE in the EN-DC Resource Configuration IE is set to the value "not present".

>>>>Secondary MeNB UL GTP Tunnel Endpoint at PDCP

O

GTP Tunnel Endpoint 9.2.1

MeNB endpoint of the X2-U transport bearer at the PDCP. For delivery of UL PDCP PDUs for PDCP duplication.

–

>>>>UL PDCP SN Length

O

PDCP SN Length

9.2.133

Shall be ignored by the en-gNB if received.

YES

ignore

>>>>DL PDCP SN Length

O

PDCP SN Length

9.2.133

Shall be ignored by the en-gNB if received.

YES

ignore

MeNB to SgNB Container

O

OCTET STRING

Includes the NR RRCReconfigurationComplete message as defined in TS 38.331 [31].

YES

ignore

Criticality Diagnostics

O

9.2.7

YES

ignore

MeNB UE X2AP ID Extension

O

Extended eNB UE X2AP ID

9.2.86

Allocated at the MeNB.

YES

ignore

MeNB Resource Coordination Information

O

9.2.116

Information used to coordinate resources utilisation between the MeNB and the en-gNB.

YES

ignore

maxnoofBearers

Maximum no. of E-RABs. Value is 256

Message Type

M

9.2.13

YES

reject

MeNB UE X2AP ID

M

eNB UE X2AP ID

9.2.24

Allocated at the MeNB.

YES

ignore

SgNB UE X2AP ID

M

en-gNB UE X2AP ID

9.2.100

Allocated at the en-gNB.

YES

ignore

Cause

M

9.2.6

YES

ignore

MeNB to SgNB Container

O

OCTET STRING

Includes the CG-ConfigInfo message as defined in TS 38.331 [31].

YES

ignore

Criticality Diagnostics

O

9.2.7

YES

ignore

MeNB UE X2AP ID Extension

O

Extended eNB UE X2AP ID

9.2.86

Allocated at the MeNB.

YES

ignore

Message Type

M

9.2.13

YES

ignore

MeNB UE X2AP ID

M

eNB UE X2AP ID

9.2.24

Allocated at the MeNB.

YES

reject

SgNB UE X2AP ID

O

en-gNB UE X2AP ID

9.2.100

Allocated at the en-gNB.

YES

reject

Cause

M

9.2.6

YES

ignore

E-RABs To Be Released List

0..1

YES

ignore

>E-RABs To Be Released Item

1 .. <maxnoofBearers>

EACH

ignore

>>E-RAB ID

M

9.2.23

–

>>EN-DC Resource Configuration

M

EN-DC Resource Configuration
9.2.108

Indicates the PDCP and Lower Layer MCG/SCG configuration.

–

>>CHOICE Resource Configuration

M

>>>PDCP present in SN

This choice tag is used if the PDCP at SgNB IE in the EN-DC Resource Configuration IE is set to the value "present".

>>>>UL Forwarding GTP Tunnel Endpoint

O

GTP Tunnel Endpoint 9.2.1

Identifies the transport bearer used for forwarding of UL PDUs

–

>>>>DL Forwarding GTP Tunnel Endpoint

O

GTP Tunnel Endpoint 9.2.1

Identifies the transport bearer used for forwarding of DL PDUs

–

>>>PDCP not present in SN

This choice tag is used if the PDCP at SgNB IE in the EN-DC Resource Configuration IE is set to the value "not present".

UE Context Kept Indicator

O

9.2.85

YES

ignore

MeNB UE X2AP ID Extension

O

Extended eNB UE X2AP ID

9.2.86

Allocated at the MeNB

YES

reject

MeNB to SgNB Container

O

OCTET STRING

Includes the CG-ConfigInfo message as defined in TS 38.331 [31].

YES

reject

E-RABs transferred to MeNB

O

E-RAB List

9.2.28

Indicates the target MeNB reconfigured the listed E-RABs as MN-terminated bearers.

YES

ignore

maxnoofBearers

Maximum no. of E-RABs. Value is 256

Message Type

M

9.2.13

YES

ignore

MeNB UE X2AP ID

M

eNB UE X2AP ID

9.2.24

Allocated at the MeNB.

YES

ignore

SgNB UE X2AP ID

M

en-gNB UE X2AP ID

9.2.100

Allocated at the en-gNB.

YES

ignore

Criticality Diagnostics

O

9.2.7

YES

ignore

MeNB UE X2AP ID Extension

O

Extended eNB UE X2AP ID

9.2.86

Allocated at the MeNB.

YES

reject

E-RABs Admitted To Be Released List

0..1

YES

ignore

>E-RABs Admitted To Be Released Item

1 .. <maxnoofBearers>

EACH

ignore

>>E-RAB ID

M

9.2.23

–

>>RLC Mode

M

RLC Mode

9.2.119

Indicates the RLC mode at the en-gNB for PDCP transfer to MeNB.

–

SCG UE History Information

O

9.2.177

YES

ignore

maxnoofBearers

Maximum no. of E-RABs. Value is 256

Message Type

M

9.2.13

YES

ignore

MeNB UE X2AP ID

M

eNB UE X2AP ID

9.2.24

Allocated at the MeNB.

YES

ignore

SgNB UE X2AP ID

M

en-gNB UE X2AP ID

9.2.100

Allocated at the en-gNB.

YES

ignore

Cause

M

9.2.6

YES

ignore

Criticality Diagnostics

O

9.2.7

YES

ignore

MeNB UE X2AP ID Extension

O

Extended eNB UE X2AP ID

9.2.86

Allocated at the MeNB.

YES

reject

Message Type

M

9.2.13

YES

reject

MeNB UE X2AP ID

M

eNB UE X2AP ID

9.2.24

Allocated at the MeNB.

YES

reject

SgNB UE X2AP ID

M

en-gNB UE X2AP ID

9.2.100

Allocated at the en-gNB.

YES

reject

Cause

M

9.2.6

YES

ignore

MeNB UE X2AP ID Extension

O

Extended eNB UE X2AP ID

9.2.86

Allocated at the MeNB.

YES

reject

E-RABs To Be Released List

0..1

YES

ignore

>E-RABs To Be Released Item

1 .. <maxnoofBearers>

EACH

ignore

>>E-RAB ID

M

9.2.23

–

>>RLC Mode

M

RLC Mode

9.2.119

Indicates the RLC mode at the en-gNB for PDCP transfer to MeNB.

–

SgNB to MeNB Container

O

OCTET STRING

Includes the NR CG-Config message as defined in TS 38.331 [31].

YES

ignore

SCG UE History Information

O

9.2.177

YES

ignore

maxnoofBearers

Maximum no. of E-RABs. Value is 256

Message Type

M

9.2.13

YES

reject

MeNB UE X2AP ID

M

eNB UE X2AP ID

9.2.24

Allocated at the MeNB.

YES

ignore

SgNB UE X2AP ID

M

en-gNB UE X2AP ID

9.2.100

Allocated at the en-gNB.

YES

ignore

E-RABs to be Released List

0..1

YES

ignore

>E-RABs To Be Released Item

1 .. <maxnoofBearers>

–

>>E-RAB ID

M

9.2.23

–

>>EN-DC Resource Configuration

M

EN-DC Resource Configuration
9.2.108

Indicates the PDCP and Lower Layer MCG/SCG configuration.

–

>>CHOICE Resource Configuration

M

>>>PDCP present in SN

This choice tag is used if the PDCP at SgNB IE in the EN-DC Resource Configuration IE is set to the value "present".

>>>>UL Forwarding GTP Tunnel Endpoint

O

GTP Tunnel Endpoint 9.2.1

Identifies the X2 transport bearer used for forwarding of UL PDUs

–

>>>>DL Forwarding GTP Tunnel Endpoint

O

GTP Tunnel Endpoint 9.2.1

Identifies the X2 transport bearer used for forwarding of DL PDUs

–

>>>PDCP not present in SN

This choice tag is used if the PDCP at SgNB IE in the EN-DC Resource Configuration IE is set to the value "not present".

Criticality Diagnostics

O

9.2.7

YES

ignore

MeNB UE X2AP ID Extension

O

Extended eNB UE X2AP ID

9.2.86

Allocated at the MeNB

YES

ignore

maxnoofBearers

Maximum no. of E-RABs. Value is 256

Message Type

M

9.2.13

YES

reject

MeNB UE X2AP ID

M

eNB UE X2AP ID

9.2.24

Allocated at the MeNB.

YES

reject

SgNB UE X2AP ID

M

en-gNB UE X2AP ID

9.2.100

Allocated at the en-gNB.

YES

reject

E-RABs Subject to

Counter Check List

1

YES

ignore

>E-RABs Subject to Counter Check Item

1 .. <maxnoofBearers>

EACH

ignore

>>E-RAB ID

M

9.2.23

–

>>UL COUNT

M

INTEGER(0.. 4294967295)

Indicates the value of uplink COUNT associated to this E-RAB.

–

>>DL COUNT

M

INTEGER(0.. 4294967295)

Indicates the value of downlink COUNT associated to this E-RAB.

–

MeNB UE X2AP ID Extension

O

Extended eNB UE X2AP ID

9.2.86

Allocated at the MeNB

YES

ignore

maxnoofBearers

Maximum no. of E-RABs. Value is 256

Message Type

M

9.2.13

YES

reject

MeNB UE X2AP ID

M

eNB UE X2AP ID

9.2.24

Allocated at the MeNB.

YES

reject

SgNB UE X2AP ID

M

en-gNB UE X2AP ID

9.2.100

Allocated at the en-gNB.

YES

reject

Target SgNB ID Information

M

9.2.102

This IE shall be ignored if the Conditional PSCell Change Information Required IE is present.

YES

reject

Cause

M

9.2.6

YES

ignore

SgNB to MeNB Container

O

OCTET STRING

Includes the CG-Config message as defined in TS 38.331 [31].

This IE shall be ignored if the Conditional PSCell Change Information Required IE is present.

YES

reject

MeNB UE X2AP ID Extension

O

Extended eNB UE X2AP ID

9.2.86

Allocated at the MeNB.

YES

reject

SCG UE History Information

O

9.2.177

YES

ignore

Conditional PSCell Change Information Required

O

YES

reject

>Multiple Target SgNB Node List

1

–

>>Multiple Target SgNB Node Item

1 .. <maxnoofTargetSgNBs>

–

>>>Target SgNB ID Information

M

9.2.102

–

>>>CPC Indicator

M

ENUMERATED (CPC-initiation, CPC-modification, CPC-cancel,…)

–

>>>Maximum Number of PSCells To Prepare

M

INTEGER (1..8, …)

Indicates the maximum number of PSCells that the target may prepare.

–

>>>Estimated Arrival Probability

O

INTEGER (1..100)

Indicates the arrival probability for the UE towards the candidate target en-gNB.

–

>>>SgNB to MeNB Container

M

OCTET STRING

Includes the CG-Config message as defined in TS 38.331 [31].

–

maxnoofTargetSgNBs

Maximum no. of the target SgNB nodes. Value is 8

Message Type

M

9.2.13

YES

reject

MeNB UE X2AP ID

M

eNB UE X2AP ID

9.2.24

Allocated at the MeNB.

YES

ignore

SgNB UE X2AP ID

M

en-gNB UE X2AP ID

9.2.100

Allocated at the en-gNB.

YES

ignore

E-RABs to be Released List

0..1

YES

ignore

>E-RABs To Be Released Item

1 .. <maxnoofBearers>

–

>>E-RAB ID

M

9.2.23

–

>>EN-DC Resource Configuration

M

EN-DC Resource Configuration
9.2.108

Indicates the PDCP and Lower Layer MCG/SCG configuration.

–

>>CHOICE Resource Configuration

M

>>>PDCP present in SN

This choice tag is used if the PDCP at SgNB IE in the EN-DC Resource Configuration IE is set to the value "present".

>>>>UL Forwarding GTP Tunnel Endpoint

O

GTP Tunnel Endpoint 9.2.1

Identifies the X2 transport bearer used for forwarding of UL PDUs

–

>>>>DL Forwarding GTP Tunnel Endpoint

O

GTP Tunnel Endpoint 9.2.1

Identifies the X2 transport bearer used for forwarding of DL PDUs

–

>>>PDCP not present in SN

This choice tag is used if the PDCP at SgNB IE in the EN-DC Resource Configuration IE is set to the value "not present".

Criticality Diagnostics

O

9.2.7

YES

ignore

MeNB UE X2AP ID Extension

O

Extended eNB UE X2AP ID

9.2.86

Allocated at the MeNB

YES

ignore

Conditional PSCell Change Information Confirm

O

YES

ignore

>Multiple Target SgNB Node List

1

–

>>Multiple Target SgNB Node Item

1 .. <maxnoofTargetSgNBs>

–

>>>Target SgNB ID

M

Global en-gNB ID

9.2.112

–

>>>Candidate PSCell List

1

–

>>>>Candidate PSCell Item

1 .. <maxnoofPSCellCandidate>

–

>>>>>PSCell ID

M

NR CGI

9.2.111

–

MeNB to SgNB Container

O

OCTET STRING

Includes the NR RRCReconfigurationComplete message as defined in subclause 6.2.2 of TS 38.331 [10].

YES

ignore

maxnoofBearers

Maximum no. of E-RABs. Value is 256

maxnoofTargetSgNBs

Maximum no. of the target SgNB nodes. Value is 8

maxnoofPSCellCandidate

Maximum no. of PSCells for CPAC. Value is 8.

Message Type

M

9.2.13

YES

reject

MeNB UE X2AP ID

M

eNB UE X2AP ID

9.2.24

Allocated at the MeNB.

YES

ignore

SgNB UE X2AP ID

M

en-gNB UE X2AP ID

9.2.100

Allocated at the en-gNB.

YES

ignore

Cause

M

9.2.6

YES

ignore

Criticality Diagnostics

O

9.2.7

YES

ignore

MeNB UE X2AP ID Extension

O

Extended eNB UE X2AP ID

9.2.86

Allocated at the MeNB.

YES

reject

Message Type

M

9.2.13

YES

reject

MeNB UE X2AP ID

M

eNB UE X2AP ID

9.2.24

Allocated at the MeNB

YES

reject

SgNB UE X2AP ID

M

en-gNB UE X2AP ID

9.2.100

Allocated at the en-gNB.

YES

reject

Secondary RAT Usage Report List

M

9.2.120

YES

reject

MeNB UE X2AP ID Extension

O

Extended eNB UE X2AP ID

9.2.86

Allocated at the MeNB.

YES

reject

Message Type

M

9.2.13

YES

reject

MeNB UE X2AP ID

M

eNB UE X2AP ID

9.2.24

Allocated at the MeNB.

YES

reject

SgNB UE X2AP ID

M

en-gNB UE X2AP ID

9.2.100

Allocated at the en-gNB.

YES

reject

Split SRB

0..1

YES

reject

>RRC Container

O

OCTET STRING

Contains a PDCP-C PDU encapsulating an RRC message as defined in subclause 6.2.1 of TS 36.331 [9] and ciphered with the key of the MeNB

–

>SRB Type

M

ENUMERATED (srb1, srb2, …)

The SRB type

–

>Delivery Status

O

9.2.104

DL RRC delivery status of split SRB

–

NR UE Report

0..1

YES

reject

>RRC Container

M

OCTET STRING

Includes the UL-DCCH-Message as defined in subclause 6.2.1 of TS 38.331 [31] containing the MeasurementReport message, or the FailureInformation message, or the RRCReconfigurationComplete message, or the UEAssistanceInformation message, or the IABOtherInformation message.

–

MeNB UE X2AP ID Extension

O

Extended eNB UE X2AP ID

9.2.86

Allocated at the MeNB.

YES

reject

Fast MCG Recovery via SRB3 from SgNB to MeNB

0..1

YES

ignore

>RRC Container

O

OCTET STRING

Includes the UL-DCCH-Message as defined in subclause 6.2.1 of TS 36.331 [9] containing MCGFailureInformation message.

–

Fast MCG Recovery via SRB3 from MeNB to SgNB

0..1

YES

ignore

>RRC Container

O

OCTET STRING

Includes the DL-DCCH-Message as defined in subclause 6.2.1 of TS 36.331 [9] containing the RRCConnectionReconfiguration message, or the RRCConnectionRelease message, or the MobilityfromEUTRACommand message.

–

Message Type

M

9.2.13

YES

reject

UEs to be Reset List

1

YES

reject

>UEs To Be Reset Item

1 .. <maxnoof UEs>

>>MeNB UE X2AP ID

M

eNB UE X2AP ID

9.2.24

Allocated at the MeNB.

>>SgNB UE X2AP ID

O

en-gNB UE X2AP ID

9.2.100

Allocated at the en-gNB.

>>MeNB UE X2AP ID Extension

O

Extended eNB UE X2AP ID

9.2.86

Allocated at the MeNB.

Cause

M

9.2.6

YES

ignore

Interface Instance Indication

O

9.2.143

YES

reject

maxnoofUEs

Maximum no. of UEs. Value is 8192.

Message Type

M

9.2.13

YES

reject

UEs Admitted to be Reset List

1

YES

reject

>UEs Admitted To Be Reset Item

1 .. <maxnoof UEsinengNBDU>

>>MeNB UE X2AP ID

M

eNB UE X2AP ID

9.2.24

Allocated at the MeNB.

>>SgNB UE X2AP ID

O

en-gNB UE X2AP ID

9.2.100

Allocated at the en-gNB.

>>MeNB UE X2AP ID Extension

O

Extended eNB UE X2AP ID

9.2.86

Allocated at the MeNB.

Interface Instance Indication

O

9.2.143

YES

reject

maxnoofUEsinengNBDU

Maximum no. of UEs. Value is 8192.

Message Type

M

9.2.13

YES

reject

CHOICE Initiating Node Type

M

–

>eNB

>>Data Traffic Resource Indication

M

9.2.126

Indicates resource allocations for data traffic.

YES

reject

>>Spectrum Sharing Group ID

M

INTEGER (1.. maxCellineNB)

Indicates the E-UTRA cells involved in resource coordination with the NR cells affiliated with the same Spectrum Sharing Group ID.

YES

reject

>>List of E-UTRA Cells in E-UTRA Coordination Request

0 .. <maxCellineNB>

List of applicable E-UTRA cells.

YES

reject

>>>EUTRA Cell ID

M

ECGI 9.2.14

–

>en-gNB

>>Data Traffic Resource Indication

M

9.2.126

Indicates resource allocations for data traffic.

YES

reject

>>List of E-UTRA Cells in NR Coordination Request

1 .. <maxCellineNB>

List of applicable E-UTRA cells

YES

reject

>>>EUTRA Cell ID

M

ECGI 9.2.14

–

>>Spectrum Sharing Group ID

M

INTEGER (1.. maxCellineNB)

Indicates the NR cells involved in resource coordination with the E-UTRA cells affiliated with the same Spectrum Sharing Group ID.

YES

reject

>>List of NR Cells in NR Coordination Request

0 .. < maxnoNRcellsSpectrumSharingwithE-UTRA >

List of applicable NR cells

YES

reject

>>>NR-Cell ID

M

NR-CGI 9.2.111

–

Interface Instance Indication

O

9.2.143

YES

reject

maxCellineNB

Maximum no. of E-UTRA cells in eNB. Value is 256.

maxnoNRcellsSpectrumSharingwithE-UTRA

Maximum no. of NR cells affiliated to a Spectrum Sharing Group ID involved in cell resource coordination with a number of E-UTRA cells affiliated with the same Spectrum Sharing Group ID. Value is 64.

Message Type

M

9.2.13

YES

reject

CHOICE Responding NodeType

M

–

>eNB

>>Data Traffic Resource Indication

M

9.2.126

Indicates resource allocations for data traffic.

YES

reject

>>Spectrum Sharing Group ID

M

INTEGER (1.. maxCellineNB)

Indicates the E-UTRA cells involved in resource coordination with the NR cells affiliated with the same Spectrum Sharing Group ID.

YES

reject

>>List of E-UTRA Cells in E-UTRA Coordination Response

0 .. <maxCellineNB>

List of applicable E-UTRA cells

YES

reject

>>>EUTRA Cell ID

M

ECGI 9.2.14

–

>en-gNB

>>Data Traffic Resource Indication

M

9.2.126

Indicates resource allocations for data traffic.

YES

reject

>>Spectrum Sharing Group ID

M

INTEGER (1.. maxCellineNB)

Indicates the NR cells involved in resource coordination with the E-UTRA cells affiliated with the same Spectrum Sharing Group ID.

YES

reject

>>List of NR Cells in NR Coordination Response

0 .. < maxnoNRcellsSpectrumSharingwithE-UTRA >

List of applicable NR cells

YES

reject

>>>NR Cell ID

M

NR-CGI 9.2.111

–

Interface Instance Indication

O

9.2.143

YES

reject

maxCellineNB

Maximum no. of E-UTRA cells in eNB. Value is 256.

maxnoNRcellsSpectrumSharingwithE-UTRA

Maximum no. of NR cells affiliated to a Spectrum Sharing Group ID involved in cell resource coordination with a number of E-UTRA cells affiliated with the same Spectrum Sharing Group ID. Value is 64.

Message Type

M

9.2.13

YES

reject