9.2.110 Served NR Cell Information

36.4233GPPEvolved Universal Terrestrial Radio Access Network (E-UTRAN)Release 17TSX2 Application Protocol (X2AP)

This IE contains cell configuration information of an NR cell that a neighbour eNB may need for the X2 AP interface.

IE/Group Name

Presence

Range

IE type and reference

Semantics description

Criticality

Assigned Criticality

NR-PCI

M

INTEGER (0..1007)

NR Physical Cell ID

Cell ID

M

NR CGI 9.2.111

5GS-TAC

O

OCTET STRING (3)

Broadcast 5GS Tracking Area Code.

If this IE is included, the receiving node may assume that the NR cell provides 5GS service and is eligible as inter-system HO target candidate.

Configured TAC

O

OCTET STRING (2)

This is the TAC configured in the en-gNB, different from the 5GS TAC broadcast in the NR cell and enables application of Roaming and Access Restrictions for EN-DC as specified in TS 37.340 [32].

Served PLMNs

1..<maxnoofBPLMNs>

Broadcast PLMNs in SIB1 associated to the NR Cell Identity in the Cell ID IE. If more than maxnoofBPLMNs are needed for NR, they are provided by the Additional PLMNs IE.

>PLMN Identity

M

9.2.4

CHOICE NR-Mode-Info

M

>FDD

>>FDD Info

1

>>>UL FreqInfo

M

NR Frequency Info

9.2.106

This IE is ignored for NR operating bands for which uplink range of NREF is not defined in section 5.4.2.3 of TS 38.104 [37].

>>>DL FreqInfo

M

NR Frequency Info

9.2.106

>>>UL Transmission Bandwidth

M

NR Transmission Bandwidth

9.2.114

This IE is ignored for NR operating bands for which uplink range of NREF is not defined in section 5.4.2.3 of TS 38.104 [37].

>>>DL Transmission Bandwidth

M

NR Transmission Bandwidth

9.2.114

>>>UL Carrier List

O

NR Carrier List

9.2.168

If included, the UL Transmission Bandwidth IE shall be ignored.

YES

ignore

>>>DL Carrier List

O

NR Carrier List

9.2.168

If included, the DL Transmission Bandwidth IE shall be ignored.

YES

ignore

>TDD

>>TDD Info

1

>>>NRFreqInfo

M

NR Frequency Info

9.2.106

>>>Transmission Bandwidth

M

NR Transmission Bandwidth

9.2.114

>>>TDD UL-DL Configuration Common NR

O

OCTET STRING

The tdd-UL-DL-ConfigurationCommon IE in TS 38.331 [31]

YES

ignore

>>>Carrier List

O

NR Carrier List

9.2.168

If included, the Transmission Bandwidth IE shall be ignored.

YES

ignore

>>>Intended TDD DL-UL Configuration NR

O

OCTET STRING

Contains the Intended TDD DL-UL Configuration NR IE as defined in TS 38.423 [49].

YES

ignore

Measurement Timing Configuration

M

OCTET STRING

Contains the MeasurementTimingConfiguration inter-node message for the served cell, as defined in TS 38.331 [31].

Additional PLMNs

0..<maxnoofAdditionalPLMNs>

Additional PLMNs in addition to the Served PLMNs

YES

reject

>PLMN Identity

M

9.2.4

Broadcast PLMN Identity Info List NR

0..<maxnoofextBPLMNs>

This IE corresponds to the PLMN-IdentityInfoList IE in SIB1 as specified in TS 38.331 [31]. All PLMN Identities and associated information contained in the PLMN-IdentityInfoList IE are included and provided in the same order as broadcast in SIB1.

YES

ignore

>Broadcast PLMNs

1..<maxnoofextBPLMNs>

Broadcast PLMN IDs in SIB1 associated to the NR Cell Identity IE

>>PLMN Identity

M

9.2.4

>5GS-TAC

O

OCTET STRING (3)

>NR Cell Identity

M

BIT STRING (SIZE(36))

SSB Positions In Burst

O

9.2.169

YES

ignore

NR Cell PRACH Configuration

O

OCTET STRING

Containing 9.3.1.139 NR Cell PRACH Configuration as of TS 38.473 [44].

YES

ignore

CSI-RS Transmission Indication

O

ENUMERATED {activated, deactivated, …}

This IE indicates the CSI-RS transmission status of the given cell.

If the Additional Measurement Timing Configuration List IE is present, this IE is ignored.

YES

ignore

SFN Offset

O

9.2.175

YES

ignore

Additional Measurement Timing Configuration List

O

1 .. <maxnoofMTCItems>

YES

ignore

>Measurement Timing Configuration Index

M

INTEGER (0..16)

“0” refers to the configuration contained in the Measurement Timing Configuration IE.

Any value between “1” and “16” refers to a configuration within the Additional Measurement Timing Configuration List IE.

>CSI-RS MTC Configuration List

M

1 .. <maxnoofCSIRSconfigurations>

This list explicitly expresses the CSI-RS configurations contained in the MTC.

>>CSI-RS Index

M

INTEGER (0..95)

Index of CSI-RS as in MTC

>>CSI-RS Status

M

ENUMERATED (activated, deactivated, …)

This IE indicates the CSI-RS transmission status of the configuration.

>>CSI-RS Neighbour List

O

1 .. <maxnoofCSIRSneighbourCells>

This list expresses the cells and CSI-RSs neighbouring the CSI-RS in the CSI-RS Index IE.

>>>NR CGI

M

9.2.111

>>>CSI-RS MTC Neighbour List

O

1 .. <maxnoofCSIRSneighbourCellsInMTC>

This list expresses the CSI-RSs served by the CGI, which are neighbouring the CSI-RS of the neighbour cell.

>>>>CSI-RS Index

M

INTEGER (0..95)

Range bound

Explanation

maxnoofBPLMNs

Maximum no. of broadcast PLMN Ids. Value is 6.

maxnoofAdditionalPLMNs

Maximum no. additional PLMN Ids. Value is 6.

maxnoofextBPLMNs

Maximum no. of extended broadcast PLMN Ids. Value is 12.

maxnoofMTCItems

Maximum no. of measurement timing configurations associated with the neighbour cell. Value is 16.

maxnoofCSIRSconfigurations

Maximum number of CSI-RS configurations reported in the MTC. Value is 96

maxnoofCSIRSneighbourCells

Maximum number of cells neighbouring a CSI-RS coverage area. Value is 16

maxnoofCSIRSneighbourCellsInMTC

Maximum number of CSI-RS coverage areas neighbouring a specific CSI-RS coverage area. Value is 16