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Content for  TS 38.331  Word version:  17.5.0

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6.2.2  Message definitionsp. 348

 –  CounterCheckp. 348

The CounterCheck message is used by the network to indicate the current COUNT MSB values associated to each DRB and to request the UE to compare these to its COUNT MSB values and to report the comparison results to the network.
Signalling radio bearer:
SRB1
RLC-SAP:
AM
Logical channel:
DCCH
Direction:
Network to UE
CounterCheck message
CounterCheck-IEs field descriptions
drb-CountMSB-InfoList
Indicates the MSBs of the COUNT values of the DRBs.
DRB-CountMSB-Info field descriptions
countMSB-Downlink
Indicates the value of 25 MSBs from RX_NEXT - 1 (specified in TS 38.323) associated to this DRB.
countMSB-Uplink
Indicates the value of 25 MSBs from TX_NEXT - 1 (specified in TS 38.323) associated to this DRB.
Up

 –  CounterCheckResponsep. 349

The CounterCheckResponse message is used by the UE to respond to a CounterCheck message.
Signalling radio bearer:
SRB1
RLC-SAP:
AM
Logical channel:
DCCH
Direction:
UE to Network
CounterCheckResponse message
CounterCheckResponse-IEs field descriptions
drb-CountInfoList
Indicates the COUNT values of the DRBs.
DRB-CountInfo field descriptions
count-Downlink
Indicates the value of RX_NEXT - 1 (specified in TS 38.323) associated to this DRB.
count-Uplink
Indicates the value of TX_NEXT - 1 (specified in TS 38.323) associated to this DRB.
Up

 –  DedicatedSIBRequest |R16|p. 350

The DedicatedSIBRequest message is used to request SIB(s) required by the UE in RRC_CONNECTED as specified in clause 5.2.2.3.5.
Signalling radio bearer:
SRB1
RLC-SAP:
AM
Logical channel:
DCCH
Direction:
UE to Network
DedicatedSIBRequest message
DedicatedSIBRequest field descriptions
requestedSIB-List
Contains a list of SIB(s) the UE requests while in RRC_CONNECTED.
requestedPosSIB-List
Contains a list of posSIB(s) the UE requests while in RRC_CONNECTED.
PosSIB-ReqInfo field descriptions
gnss-id
The presence of this field indicates that the request positioning SIB type is for a specific GNSS. Indicates a specific GNSS (see also TS 37.355)
sbas-id
The presence of this field indicates that the request positioning SIB type is for a specific SBAS. Indicates a specific SBAS (see also TS 37.355).
Up

 –  DLDedicatedMessageSegment |R16|p. 351

The DLDedicatedMessageSegment message is used to transfer one segment of the RRCResume or RRCReconfiguration messages.
Signalling radio bearer:
SRB1
RLC-SAP:
AM
Logical channel:
DCCH
Direction:
Network to UE
DLDedicatedMessageSegment message
DLDedicatedMessageSegment field descriptions
segmentNumber
Identifies the sequence number of a segment within the encoded DL DCCH message. The network transmits the segments with continuously increasing segmentNumber order so that the UE's RRC layer may expect to obtain them from lower layers in the correct order. Hence, the UE is not required to perform segment re-ordering on RRC level.
rrc-MessageSegmentContainer
Includes a segment of the encoded DL DCCH message. The size of the included segment in this container should be small enough so the resulting encoded RRC message PDU is less than or equal to the PDCP SDU size limit.
rrc-MessageSegmentType
Indicates whether the included DL DCCH message segment is the last segment of the message or not.
Up

 –  DLInformationTransferp. 352

The DLInformationTransfer message is used for the downlink transfer of NAS dedicated information, timing information for the 5G internal system clock, or IAB-DU specific F1-C related information.
Signalling radio bearer:
SRB2 or SRB1 (only if SRB2 not established yet). If SRB2 is suspended, the network does not send this message until SRB2 is resumed. If only dedicatedInfoF1c is included, SRB2 is used.
RLC-SAP:
AM
Logical channel:
DCCH
Direction:
Network to UE
DLInformationTransfer message
DLInformationTransfer field descriptions
rxTxTimeDiff-gNB
Indicates the Rx-Tx time difference measurement at the gNB (see clause 5.2.3 in TS 38.215). Upon receiving this field, the UE calculates the propagation delay based on the RTT-based PDC mechanism method as described in TS 38.300. The network does not configure this field, if the UE is configured with ta-PDC with value activate.
sib9Fallback
Indicates that the UE fallbacks to receive referenceTimeInfo in SIB9.
ta-PDC
Indicates whether the UE-side TA-based propagation delay compensation (PDC) is activated or de-activated. The network does not configure this field with activate, if the field rxTxTimeDiff-gNB is configured.
Up

 –  DLInformationTransferMRDC |R16|p. 354

The DLInformationTransferMRDC message is used for the downlink transfer of RRC messages during fast MCG link recovery.
Signalling radio bearer:
SRB3
RLC-SAP:
AM
Logical channel:
DCCH
Direction:
Network to UE
DLInformationTransferMRDC message
DLInformationTransferMRDC field descriptions
dl-DCCH-MessageNR
Includes the DL-DCCH-Message. In this version of the specification, the field is only used to transfer the NR RRCReconfiguration, RRCRelease, and MobilityFromNRCommand messages.
dl-DCCH-MessageEUTRA
Includes the DL-DCCH-Message. In this version of the specification, the field is only used to transfer the E-UTRA RRCConnectionReconfiguration, RRCConnectionRelease, and MobilityFromEUTRACommand messages as specified in TS 36.331.
Up

 –  FailureInformationp. 355

The FailureInformation message is used to inform the network about a failure detected by the UE.
Signalling radio bearer:
SRB1 or SRB3
RLC-SAP:
AM
Logical channel:
DCCH
Direction:
UE to network
FailureInformation message
Up

 –  IABOtherInformation |R16|p. 356

The IABOtherInformation message is used by IAB-MT to request the network to allocate IP addresses for the collocated IAB-DU or inform the network about IP addresses allocated to the collocated IAB-DU.
Signalling radio bearer:
SRB1 or SRB3
RLC-SAP:
AM
Logical channel:
DCCH
Direction:
IAB-MT to Network
IABOtherInformation message
IABOtherInformation-IEs field descriptions
iab-IPv4-AddressNumReq
This field is used to request the numbers of IPv4 address per specific usage. The specific usages include F1-C traffic, F1-U traffic, non-F1 traffic and all traffic.
iab-IPv4-AddressReport
This field is used to report the IPv4 address per specific usage assigned by OAM for IAB-DU. The specific usages include F1-C traffic, F1-U traffic, non-F1 traffic and all traffic.
iab-IPv6-AddressNumReq
This field is used to request the numbers of IPv6 address per specific usage. The specific usages include F1-C traffic, F1-U traffic, non-F1 traffic and all traffic.
iab-IPv6-AddressPrefixReq
This field is used to request the prefix of IPv6 address per specific usage. The specific usages include F1-C traffic, F1-U traffic, non-F1 traffic and all traffic.
iab-IPv6-AddressReport
This field is used to report the IPv6 address per specific usage assigned by OAM for IAB-DU. The specific usages include F1-C traffic, F1-U traffic, non-F1 traffic and all traffic.
iab-IPv6-PrefixReport
This field is used to report the prefix of IPv6 address per specific usage assigned by OAM for IAB-DU. The specific usages include F1-C traffic, F1-U traffic, non-F1 traffic and all traffic.
IAB-IP-AddressNumReq-IEs field descriptions
all-Traffic-NumReq
This field is used to request the numbers of IP address for all traffic.
f1-C-Traffic-NumReq
This field is used to request the numbers of IP address for F1-C traffic.
f1-U-Traffic-NumReq
This field is used to request the numbers of IP address for F1-U traffic.
non-F1-Traffic-NumReq
This field is used to request the numbers of IP address for non-F1 traffic.
IAB-IP-AddressPrefixReq-IEs field descriptions
all-Traffic-PrefixReq
This field is used to request the IPv6 address prefix for all traffic. The length of allocated IPv6 prefix is fixed to 64.
f1-C-Traffic-PrefixReq
This field is used to request the IPv6 address prefix for F1-C traffic. The length of allocated IPv6 prefix is fixed to 64.
f1-U-Traffic-PrefixReq
This field is used to request the IPv6 address prefix for F1-U traffic. The length of allocated IPv6 prefix is fixed to 64.
non-F1-Traffic-PrefixReq
This field is used to request the IPv6 address prefix for non-F1 traffic. The length of allocated IPv6 prefix is fixed to 64.
IAB-IP-AddressAndTraffic-IEs field descriptions
all-Traffic-IAB-IP-Address
This field is used to report to IAB-donor-CU the IP address(es) or IPv6 address prefix for all traffic.
f1-C-Traffic-IP-Address
This field is used to report to IAB-donor-CU the IP address(es) or IPv6 address prefix for F1-C traffic.
f1-U-Traffic-IP-Address
This field is used to report to IAB-donor-CU the IP address(es) or IPv6 address prefix for F1-U traffic.
non-F1-Traffic-IP-Address
This field is used to report to IAB-donor-CU the IP address(es) or IPv6 address prefix for non-F1 traffic.
Up

 –  LocationMeasurementIndicationp. 359

The LocationMeasurementIndication message is used to indicate that the UE is going to either start or stop location related measurement which requires measurement gaps.
Signalling radio bearer:
SRB1
RLC-SAP:
AM
Logical channel:
DCCH
Direction:
UE to Network
LocationMeasurementIndication message
Up

 –  LoggedMeasurementConfiguration |R16|p. 360

The LoggedMeasurementConfiguration message is used to perform logging of measurement results while in RRC_IDLE or RRC_INACTIVE. It is used to transfer the logged measurement configuration for network performance optimisation.
Signalling radio bearer:
SRB1
RLC-SAP:
AM
Logical channel:
DCCH
Direction:
Network to UE
LoggedMeasurementConfiguration message
LoggedMeasurementConfiguration field descriptions
absoluteTimeInfo
Indicates the absolute time in the current cell.
areaConfiguration
Used to restrict the area in which the UE performs measurement logging to cells broadcasting either one of the included cell identities or one of the included tracking area codes/ frequencies.
earlyMeasIndication
If included, the field indicates the UE is allowed to log measurements on early measurement related frequencies in logged measurements.
eventType
The value outOfCoverage indicates the UE to perform logging of measurements when the UE enters any cell selection state, and the value eventL1 indicates the UE to perform logging of measurements when the triggering condition (similar as event A2 as specified in clause 5.5.4.3) as configured in the event is met for the camping cell in camped normally state.
plmn-IdentityList
Indicates a set of PLMNs defining when the UE performs measurement logging as well as the associated status indication and information retrieval i.e. the UE performs these actions when the RPLMN is part of this set of PLMNs.
sigLoggedMeasType
If included, the field indicates a signalling based logged measurements (See TS 37.320).
tce-Id
Parameter Trace Collection Entity Id: See TS 32.422.
traceRecordingSessionRef
Parameter Trace Recording Session Reference: See TS 32.422.
reportType
Parameter configures the type of MDT configuration, specifically Periodic MDT configuration or Event Triggerd MDT configuration.
Up

 –  MBSBroadcastConfiguration |R17|p. 362

The MBSBroadcastConfiguration message contains the control information applicable for MBS broadcast services transmitted via broadcast MRB.
Signalling radio bearer:
N/A
RLC-SAP:
UM
Logical channel:
MCCH
Direction:
Network to UE
MBSBroadcastConfiguration message
MBSBroadcastConfiguration field descriptions
pdsch-ConfigMTCH
Provides parameters for acquiring the PDSCH for MTCH. When this field is absent, the UE shall use parameters in pdsch-ConfigMCCH to acquire the PDSCH for MTCH.
mbs-SessionInfoList
Provides the configuration of each MBS session provided by MBS broadcast in the current cell.
mbs-NeighbourCellList
List of neighbour cells providing one or more MBS broadcast services via broadcast MRB that are provided by the current cell. This field is used by the UE together with mtch-NeighbourCell field signalled for each MBS session in the corresponding MBS-SessionInfo. When an empty mbs-NeighbourCellList list is signalled, the UE shall assume that MBS broadcast services signalled in mbs-SessionInfoList in the MBSBroadcastConfiguration message are not provided in any neighbour cell. When a non-empty mbs-NeighbourCellList is signalled, the current serving cell does not provide information about MBS broadcast services of a neighbour cell that is not included in mbs-NeighbourCellList, i.e., the UE cannot determine the presence or absence of an MBS service of a neighbour cell that is absent. When the field mbs-NeighbourCellList is absent, the current serving cell does not provide information about MBS broadcast services in the neighbouring cells, i.e. the UE cannot determine the presence or absence of an MBS service in neighbouring cells based on the absence of this field.
Up

 –  MBSInterestIndication |R17|p. 363

The MBSInterestIndication message is used to inform network that the UE is receiving/ interested to receive or no longer receiving/ interested to receive MBS broadcast service(s) via a broadcast MRB.
Signalling radio bearer:
SRB1
RLC-SAP:
AM
Logical channel:
DCCH
Direction:
UE to Network
MBSInterestIndication message
MBSInterestIndication field descriptions
mbs-FreqList
List of MBS frequencies on which the UE is receiving or interested to receive MBS broadcast service via a broadcast MRB.
mbs-Priority
Indicates whether the UE prioritises MBS broadcast reception above unicast and MBS multicast reception. The field is present (i.e. value true), if the UE prioritises reception of broadcast services, on frequencies indicated in mbs-FreqList, above a reception of any of the unicast bearers and multicast MRBs. Otherwise the field is absent.
mbs-ServiceList
List of MBS broadcast services which the UE is receiving or interested to receive.
Up

 –  MCGFailureInformation |R16|p. 364

The MCGFailureInformation message is used to provide information regarding NR MCG failures detected by the UE.
Signalling radio bearer:
SRB1
RLC-SAP:
AM
Logical channel:
DCCH
Direction:
UE to Network
MCGFailureInformation message
MCGFailureInformation field descriptions
measResultFreqList
The field contains available results of measurements on NR frequencies the UE is configured to measure by the measConfig associated with the MCG.
measResultFreqListEUTRA
The field contains available results of measurements on E-UTRA frequencies the UE is configured to measure by measConfig associated with the MCG.
measResultFreqListUTRA-FDD
The field contains available results of measurements on UTRA FDD frequencies the UE is configured to measure by measConfig associated with the MCG.
measResultSCG
The field contains the MeasResultSCG-Failure IE which includes available measurement results on NR frequencies the UE is configured to measure by the measConfig associated with the SCG.
measResultSCG-EUTRA
The field contains the EUTRA MeasResultSCG-FailureMRDC IE which includes available results of measurements on E-UTRA frequencies the UE is configured to measure by the E-UTRA RRCConnectionReconfiguration message as specified in TS 36.331.
Up

 –  MeasurementReportp. 366

The MeasurementReport message is used for the indication of measurement results.
Signalling radio bearer:
SRB1, SRB3
RLC-SAP:
AM
Logical channel:
DCCH
Direction:
UE to Network
MeasurementReport message
Up

 –  MeasurementReportAppLayer |R17|p. 367

The MeasurementReportAppLayer message is used for sending application layer measurement report.
Signalling radio bearer:
SRB4
RLC-SAP:
AM
Logical channel:
DCCH
Direction:
UE to Network
MeasurementReportAppLayer message
MeasReportAppLayer field descriptions
appLayerSessionStatus
Indicates that an application layer measurement session in the application layer starts or ends.
measReportAppLayerContainer
The field contains the application layer measurement report container, see Annex L (normative) in TS 26.247, clause16.5 of TS 26.114 and TS 26.118.
ran-VisibleMeasurements
The field contains the RAN visible application layer measurement report.
RAN-VisibleMeasurements field descriptions
appLayerBufferLevelList
The field indicates a list of application layer buffer levels, and each AppLayerBufferLevel indicates the application layer buffer level in ms. Value 0 corresponds to 0ms, value 1 corresponds to 10ms, value 2 corresponds to 20 ms and so on. If the buffer level is larger than the maximum value of 30000 (5 minutes), the UE reports 30000.
playoutDelayForMediaStartup
Indicates the application layer playout delay for media start-up in ms. Value 0 corresponds to 0ms, value 1 corresponds to 1ms, value 2 corresponds to 2 ms and so on. If the playout delay for media start-up is larger than the maximum value of 30000ms, the UE reports 30000.
pdu-SessionIdList
Contains the identity of the PDU session, or the identities of the PDU sessions, used for application data flows subject to the RAN visible application layer measurements.
Up

 –  MIBp. 368

The MIB includes the system information transmitted on BCH.
Signalling radio bearer:
N/A
RLC-SAP:
TM
Logical channel:
BCCH
Direction:
Network to UE
MIB
MIB field descriptions
cellBarred
Value barred means that the cell is barred, as defined in TS 38.304. This field is ignored by IAB-MT. This field is ignored for connectivity to NTN.
dmrs-TypeA-Position
Position of (first) DM-RS for downlink (see clause 7.4.1.1.2 of TS 38.211) and uplink (see clause 6.4.1.1.3 of TS 38.211).
intraFreqReselection
Controls cell selection/reselection to intra-frequency cells when the highest ranked cell is barred, or treated as barred by the UE, as specified in TS 38.304. This field is ignored by IAB-MT.
pdcch-ConfigSIB1
Determines a common ControlResourceSet (CORESET), a common search space and necessary PDCCH parameters. If the field ssb-SubcarrierOffset indicates that SIB1 is absent, the field pdcch-ConfigSIB1 indicates the frequency positions where the UE may find SS/PBCH block with SIB1 or the frequency range where the network does not provide SS/PBCH block with SIB1 (see clause 13 of TS 38.213).
ssb-SubcarrierOffset
Corresponds to kSSB (see TS 38.213), which is the frequency domain offset between SSB and the overall resource block grid in number of subcarriers. (See clause 7.4.3.1 of TS 38.211). For operation with shared spectrum channel access in FR1 (see TS 37.213), this field corresponds to kSSB, and kSSB is obtained from kSSB (see clause 7.4.3.1 of TS 38.211); the LSB of this field is used also for deriving the QCL relation between SS/PBCH blocks as specified in clause 4.1 ofTS 38.213.
The value range of this field may be extended by an additional most significant bit encoded within PBCH as specified in TS 38.213.
This field may indicate that this cell does not provide SIB1 and that there is hence no CORESET#0 configured in MIB (see clause 13 of TS 38.213). In this case, the field pdcch-ConfigSIB1 may indicate the frequency positions where the UE may (not) find a SS/PBCH with a control resource set and search space for SIB1 (see clause 13 of TS 38.213).
subCarrierSpacingCommon
Subcarrier spacing for SIB1, Msg.2/4 and MsgB for initial access, paging and broadcast SI-messages. If the UE acquires this MIB on an FR1 carrier frequency, the value scs15or60 corresponds to 15 kHz and the value scs30or120 corresponds to 30 kHz. If the UE acquires this MIB on an FR2 carrier frequency, the value scs15or60 corresponds to 60 kHz and the value scs30or120 corresponds to 120 kHz. For operation with shared spectrum channel access in FR1 (see TS 37.213) and for operation in FR2-2, the subcarrier spacing for SIB1, Msg.2/4 and MsgB for initial access, paging and broadcast SI-messages is same as that for the corresponding SSB. For operation with shared spectrum channel access, this field instead is used for deriving the QCL relation between SS/PBCH blocks as specified in clause 4.1 of TS 38.213.
systemFrameNumber
The 6 most significant bits (MSB) of the 10-bit System Frame Number (SFN). The 4 LSB of the SFN are conveyed in the PBCH transport block as part of channel coding (i.e. outside the MIB encoding), as defined in clause 7.1 in TS 38.212.
Up

 –  MobilityFromNRCommandp. 369

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
MobilityFromNRCommand-IEs field descriptions
nas-SecurityParamFromNR
If targetRAT-Type is eutra, this field is used to deliver the key synchronisation and Key freshness for the NR to LTE/EPC handovers and a part of the downlink NAS COUNT as specified in TS 33.501 and the content of the parameter is defined in TS 24.501. If targetRAT-Type is utra-fdd, this field is used to deliver the key synchronisation and Key freshness for the NR to FDD UTRAN handover and a part of the downlink NAS COUNT as specified in TS 33.501 and the content of the parameter is defined in TS 24.501.
targetRAT-MessageContainer
The field contains a message specified in another standard, as indicated by the targetRAT-Type, and carries information about the target cell identifier(s) and radio parameters relevant for the target radio access technology. A complete message is included, as specified in the other standard. See NOTE 1
targetRAT-Type
Indicates the target RAT type.
voiceFallbackIndication
Indicates the handover is triggered by EPS fallback for IMS voice as specified in TS 23.502.
targetRAT-Type Standard to apply targetRAT-MessageContainer
eutraclause 5.4.2 of TS 36.331DL-DCCH-Message including the RRCConnectionReconfiguration
utra-fddclause 10.2.16a of TS 25.331Handover TO UTRAN command
Conditional Presence Explanation
HO-ToEPCUTRAN This field is mandatory present in case of inter system handover to "EPC" or "FDD UTRAN". Otherwise it is absent.
Up

 –  Pagingp. 371

The Paging message is used for the notification of one or more UEs.
Signalling radio bearer:
N/A
RLC-SAP:
TM
Logical channel:
PCCH
Direction:
Network to UE
Paging message
PagingRecord field descriptions
accessType
Indicates whether the Paging message is originated due to the PDU sessions from the non-3GPP access.
pagingRecordList
If the network includes pagingRecordList-v1700, it includes the same number of entries, and listed in the same order, as in pagingRecordList (i.e. without suffix).
pagingCause
Indicates whether the Paging message is originated due to IMS voice. If this field is present, it implies that the corresponding paging entry is for IMS voice. If upper layers indicate the support of paging cause and if this field is not present but pagingRecordList-v1700 is present, it implies that the corresponding paging entry is for a service other than IMS voice. Otherwise, paging cause is undetermined.
Up

 –  RRCReestablishmentp. 373

The RRCReestablishment message is used to re-establish SRB1.
Signalling radio bearer:
SRB1
RLC-SAP:
AM
Logical channel:
DCCH
Direction:
Network to UE
RRCReestablishment message
RRCReestablishment-IEs field descriptions
sl-L2RemoteUE-Config
Contains dedicated configurations used for L2 U2N relay related operation. The network configures only the SRAP configuration for local UE ID.
Conditional Presence Explanation
L2RemoteUEThe field is mandatory present for L2 U2N Remote UE; otherwise it is absent.
Up

 –  RRCReestablishmentCompletep. 374

The RRCReestablishmentComplete message is used to confirm the successful completion of an RRC connection re-establishment.
Signalling radio bearer:
SRB1
RLC-SAP:
AM
Logical channel:
DCCH
Direction:
UE to Network
RRCReestablishmentComplete message
Up

 –  RRCReestablishmentRequestp. 374

The RRCReestablishmentRequest message is used to request the reestablishment of an RRC connection.
Signalling radio bearer:
SRB0
RLC-SAP:
TM
Logical channel:
CCCH
Direction:
UE to Network
RRCReestablishmentRequest message
ReestabUE-Identity field descriptions
physCellId
The Physical Cell Identity of the PCell the UE was connected to prior to the failure.
RRCReestablishmentRequest-IEs field descriptions
reestablishmentCause
Indicates the failure cause that triggered the re-establishment procedure. gNB is not expected to reject a RRCReestablishmentRequest due to unknown cause value being used by the UE.
ue-Identity
UE identity included to retrieve UE context and to facilitate contention resolution by lower layers.
Up

 –  RRCReconfigurationp. 375

The RRCReconfiguration message is the command to modify an RRC connection. It may convey information for measurement configuration, mobility control, radio resource configuration (including RBs, MAC main configuration and physical channel configuration) and AS security configuration.
Signalling radio bearer:
SRB1 or SRB3
RLC-SAP:
AM
Logical channel:
DCCH
Direction:
Network to UE
RRCReconfiguration message
RRCReconfiguration-IEs field descriptions
appLayerMeasConfig
This field is used to configure application layer measurements. This field is absent when the UE is configured to operate with shared spectrum channel access or if sl-L2RemoteUE-Config-r17 is configured or not released.
bap-Config
This field is used to configure the BAP entity for IAB nodes.
bap-Address
Indicates the BAP address of an IAB-node. The BAP address of an IAB-node cannot be changed once configured for the cell group to the BAP entity.
conditionalReconfiguration
Configuration of candidate target SpCell(s) and execution condition(s) for conditional handover, conditional PSCell addition or conditional PSCell change. The field is absent if any DAPS bearer is configured or if the masterCellGroup includes ReconfigurationWithSync or if the sl-L2RemoteUE-Config or sl-L2RelayUE-Config is configured. For conditional PSCell change, the field is absent if the secondaryCellGroup includes ReconfigurationWithSync. The RRCReconfiguration message contained in DLInformationTransferMRDC cannot contain the field conditionalReconfiguration for conditional PSCell change or for conditional PSCell addition.
daps-SourceRelease
Indicates to UE that the source cell part of DAPS operation is to be stopped and the source cell part of DAPS configuration is to be released.
dedicatedNAS-MessageList
This field is used to transfer UE specific NAS layer information between the network and the UE. The RRC layer is transparent for each PDU in the list.
dedicatedPagingDelivery
This field is used to transfer Paging message for the associated L2 U2N Remote UE to the L2 U2N Relay UE in RRC_CONNECTED.
dedicatedPosSysInfoDelivery
This field is used to transfer SIBPos to the UE in RRC_CONNECTED.
dedicatedSIB1-Delivery
This field is used to transfer SIB1 to the UE (including L2 U2N Remote UE). The field has the same values as the corresponding configuration in servingCellConfigCommon.
dedicatedSystemInformationDelivery
This field is used to transfer SIB6, SIB7, SIB8, SIB19, SIB21 to the UE with an active BWP with no common search space configured or the L2 U2N Remote UE in RRC_CONNECTED. For UEs in RRC_CONNECTED (including L2 U2N Remote UE), this field is also used to transfer the SIBs requested on-demand.
defaultUL-BAP-RoutingID
This field is used for IAB-node to configure the default uplink Routing ID, which is used by IAB-node during IAB-node bootstrapping, migration, IAB-MT RRC resume and IAB-MT RRC re-establishment for F1-C and non-F1 traffic. The defaultUL-BAP-RoutingID can be (re-)configured when IAB-node IP address for F1-C related traffic changes. This field is mandatory only for IAB-node bootstrapping.
defaultUL-BH-RLC-Channel
This field is used for IAB-nodes to configure the default uplink BH RLC channel, which is used by IAB-node during IAB-node bootstrapping, migration, IAB-MT RRC resume and IAB-MT RRC re-establishment for F1-C and non-F1 traffic. The defaultUL-BH-RLC-Channel can be (re-)configured when IAB-node IP address for F1-C related traffic changes, and the new IP address is anchored at a different IAB-donor-DU. This field is mandatory for IAB-node bootstrapping. If the IAB-MT is operating in EN-DC, the default uplink BH RLC channel is referring to an RLC channel on the SCG; Otherwise, it is referring to an RLC channel either on the MCG or on the SCG depending on whether the MN or the SN configures this field.
flowControlFeedbackType
This field is only used for IAB-node that support hop-by-hop flow control to configure the type of flow control feedback. Value perBH-RLC-Channel indicates that the IAB-node shall provide flow control feedback per BH RLC channel, value perRoutingID indicates that the IAB-node shall provide flow control feedback per routing ID, and value both indicates that the IAB-node shall provide flow control feedback both per BH RLC channel and per routing ID.
fullConfig
Indicates that the full configuration option is applicable for the RRCReconfiguration message for intra-system intra-RAT HO. For inter-RAT HO from E-UTRA to NR, fullConfig indicates whether or not delta signalling of SDAP/PDCP from source RAT is applicable. This field is absent if any DAPS bearer is configured or when the RRCReconfiguration message is transmitted on SRB3, and in an RRCReconfiguration message for SCG contained in another RRCReconfiguration message (or RRCConnectionReconfiguration message, see TS 36.331) transmitted on SRB1.
iab-IP-Address
This field is used to provide the IP address information for IAB-node.
iab-IP-AddressIndex
This field is used to identify a configuration of an IP address.
iab-IP-AddressToAddModList
List of IP addresses allocated for IAB-node to be added and modified.
iab-IP-AddressToReleaseList
List of IP address allocated for IAB-node to be released.
iab-IP-Usage
This field is used to indicate the usage of the assigned IP address. If this field is not configured, the assigned IP address is used for all traffic.
iab-donor-DU-BAP-Address
This field is used to indicate the BAP address of the IAB-donor-DU where the IP address is anchored.
keySetChangeIndicator
Indicates whether UE shall derive a new KgNB. If reconfigurationWithSync is included, value true indicates that a KgNB key is derived from a KAMF key taken into use through the latest successful NAS SMC procedure, or N2 handover procedure with KAMF change, as described in TS 33.501 for KgNB re-keying. Value false indicates that the new KgNB key is obtained from the current KgNB key or from the NH as described in TS 33.501.
masterCellGroup
Configuration of master cell group.
mrdc-ReleaseAndAdd
This field indicates that the current SCG configuration is released and a new SCG is added at the same time.
mrdc-SecondaryCellGroup
Includes an RRC message for SCG configuration in NR-DC or NE-DC. For NR-DC (nr-SCG), mrdc-SecondaryCellGroup contains the RRCReconfiguration message as generated (entirely) by SN gNB. In this version of the specification, the RRC message can only include fields secondaryCellGroup, otherConfig, conditionalReconfiguration, measConfig, bap-Config and IAB-IP-AddressConfigurationList.
For NE-DC (eutra-SCG), mrdc-SecondaryCellGroup includes the E-UTRA RRCConnectionReconfiguration message as specified in TS 36.331. In this version of the specification, the E-UTRA RRC message can only include the field scg-Configuration.
musim-GapConfig
Indicates the MUSIM gap configuration and controls setup/release of MUSIM gaps. In this version of the specification, the network does not configure MUSIM gap together with concurrent measurement gap or preconfigured measurement gap for positioning.
nas-Container
This field is used to transfer UE specific NAS layer information between the network and the UE. The RRC layer is transparent for this field, although it affects activation of AS security after inter-system handover to NR. The content is defined in TS 24.501.
needForGapsConfigNR
Configuration for the UE to report measurement gap requirement information of NR target bands in the RRCReconfigurationComplete and RRCResumeComplete message.
needForGapNCSG-ConfigEUTRA
Configuration for the UE to report measurement gap and NCSG requirement information of E-UTRA target bands in the RRCReconfigurationComplete and RRCResumeComplete message.
needForGapNCSG-ConfigNR
Configuration for the UE to report measurement gap and NCSG requirement information of NR target bands in the RRCReconfigurationComplete and RRCResumeComplete message.
nextHopChainingCount
Parameter NCC: See TS 33.501
onDemandSIB-Request
If the field is present, the UE is allowed to request SIB(s) on-demand while in RRC_CONNECTED according to clause 5.2.2.3.5.
onDemandSIB-RequestProhibitTimer
Prohibit timer for requesting SIB(s) on-demand while in RRC_CONNECTED according to clause 5.2.2.3.5. Value in seconds. Value s0 means prohibit timer is set to 0 seconds, value s0dot5 means prohibit timer is set to 0.5 seconds, value s1 means prohibit timer is set to 1 second and so on.
otherConfig
Contains configuration related to other configurations. When configured for the SCG, only fields drx-PreferenceConfig, maxBW-PreferenceConfig, maxBW-PreferenceConfigFR2-2, maxCC-PreferenceConfig, maxMIMO-LayerPreferenceConfig, maxMIMO-LayerPreferenceConfigFR2-2, minSchedulingOffsetPreferenceConfig, minSchedulingOffsetPreferenceConfigExt, rlm-RelaxationReportingConfig, bfd-RelaxationReportingConfig, btNameList, wlanNameList, sensorNameList and obtainCommonLocation can be included.
radioBearerConfig
Configuration of Radio Bearers (DRBs, SRBs, multicast MRBs) including SDAP/PDCP. In (NG)EN-DC this field may only be present if the RRCReconfiguration is transmitted over SRB3. SRB4 should not be configured if sl-L2RemoteUE-Config-r17 is configured or not released.
radioBearerConfig2
Configuration of Radio Bearers (DRBs, SRBs) including SDAP/PDCP. This field can only be used if the UE supports NR-DC or NE-DC.
scg-State
Indicates that the SCG is in deactivated state. This field is not used
  • in an RRCReconfiguration message received:
  • within mrdc-SecondaryCellGroup, or
  • in an E-UTRA RRCConnectionReconfiguration message, or
  • in an E-UTRA RRCConnectionResume message or
  • in an RRCReconfiguration message received via SRB3, except if the RRCReconfiguration message is included in DLInformationTransferMRDC.
The field is absent if CPA or CPC is configured for the UE, or if the RRCReconfiguration message is contained in CondRRCReconfig.
sl-L2RelayUE-Config
Contains L2 U2N relay operation related configurations used by a UE acting as or to be acting as a L2 U2N Relay UE. The field is absent if conditionalReconfiguration is configured for CHO.
sl-L2RemoteUE-Config
Contains L2 U2N relay operation related configurations used by a UE acting as or to be acting as a L2 U2N Remote UE. The field is absent if conditionalReconfiguration is configured for CHO, or if appLayerMeasConfig or SRB4 is configured/not released.
secondaryCellGroup
Configuration of secondary cell group ((NG)EN-DC or NR-DC).
sk-Counter
A counter used upon initial configuration of S-KgNB or S-KeNB, as well as upon refresh of S-KgNB or S-KeNB. This field is always included either upon initial configuration of an NR SCG or upon configuration of the first RB with keyToUse set to secondary, whichever happens first. This field is absent if there is neither any NR SCG nor any RB with keyToUse set to secondary.
sl-ConfigDedicatedNR
This field is used to provide the dedicated configurations for NR sidelink communication/discovery.
sl-ConfigDedicatedEUTRA-Info
This field includes the E-UTRA RRCConnectionReconfiguration as specified in TS 36.331. In this version of the specification, the E-UTRA RRCConnectionReconfiguration can only includes sidelink related fields for V2X sidelink communication, i.e. sl-V2X-ConfigDedicated, sl-V2X-SPS-Config, measConfig and/or otherConfig.
sl-TimeOffsetEUTRA
This field indicates the possible time offset to (de)activation of V2X sidelink transmission after receiving DCI format 3_1 used for scheduling V2X sidelink communication. Value ms0dpt75 corresponds to 0.75ms, ms1 corresponds to 1ms and so on. The network includes this field only when sl-ConfigDedicatedEUTRA is configured.
targetCellSMTC-SCG
The SSB periodicity/offset/duration configuration of target cell for NR PSCell addition and SN change. When UE receives this field, UE applies the configuration based on the timing reference of NR PCell for PSCell addition and PSCell change for the case of no reconfiguration with sync of MCG, and UE applies the configuration based on the timing reference of target NR PCell for the case of reconfiguration with sync of MCG. If both this field and the smtc in secondaryCellGroup → SpCellConfig → reconfigurationWithSync are absent, the UE uses the SMTC in the measObjectNR having the same SSB frequency and subcarrier spacing, as configured before the reception of the RRC message.
t316
Indicates the value for timer T316 as described in clause 7.1. Value ms50 corresponds to 50 ms, value ms100 corresponds to 100 ms and so on. This field can be configured only if the UE is configured with split SRB1 or SRB3.
ue-TxTEG-RequestUL-TDOA-Config
Configures the periodicity of UE reporting for the association between Tx TEG and SRS Positioning resources. When configured with oneShot UE reports the association only one time. When configured with periodicReporting UE reports the association periodically and the periodicReporting indicates the periodicity. Value ms160 corresponds to 160ms, value ms320 corresponds to 320ms and so on.
ul-GapFR2-Config
Indicates the FR2 UL gap configuration to UE. In EN-DC and NGEN-DC, the SN decides and configures the FR2 UL gap pattern. In NE-DC, the MN decides and configures the FR2 UL gap pattern. In NR-DC without FR2-FR2 band combination, the network entity which is configured with FR2 serving cell(s) decides and configures the FR2 UL gap pattern.
Conditional Presence Explanation
nonHOThe field is absent in case of reconfiguration with sync within NR or to NR; otherwise it is optionally present, need N.
securityNASCThis field is mandatory present in case of inter system handover. Otherwise the field is optionally present, need N.
MasterKeyChangeThis field is mandatory present in case masterCellGroup includes ReconfigurationWithSync and RadioBearerConfig includes SecurityConfig with SecurityAlgorithmConfig, indicating a change of the AS security algorithms associated to the master key. If ReconfigurationWithSync is included for other cases, this field is optionally present, need N. Otherwise the field is absent.
FullConfigThe field is mandatory present in case of inter-system handover from E-UTRA/EPC to NR. It is optionally present, Need N, during reconfiguration with sync and also in first reconfiguration after reestablishment; or for intra-system handover from E-UTRA/5GC to NR. It is absent otherwise.
SCGThe field is mandatory present in:
  • an RRCReconfiguration message contained in an RRCResume message (or in an RRCConnectionResume message, see TS 36.331),
  • an RRCReconfiguration message contained in an RRCConnectionReconfiguration message, see TS 36.331, which is contained in DLInformationTransferMRDC transmitted on SRB3 (as a response to ULInformationTransferMRDC including an MCGFailureInformation).
The field is optional present, Need M, in:
  • an RRCReconfiguration message transmitted on SRB3,
  • an RRCReconfiguration message contained in another RRCReconfiguration message (or in an RRCConnectionReconfiguration message, see TS 36.331) transmitted on SRB1
  • an RRCReconfiguration message contained in another RRCReconfiguration message which is contained in DLInformationTransferMRDC transmitted on SRB3 (as a response to ULInformationTransferMRDC including an MCGFailureInformation)
Otherwise, the field is absent
PagingRelayFor L2 U2N Relay UE, the field is optionally present, Need N. Otherwise, it is absent.
Up

 –  RRCReconfigurationCompletep. 383

The RRCReconfigurationComplete message is used to confirm the successful completion of an RRC connection reconfiguration.
Signalling radio bearer:
SRB1 or SRB3
RLC-SAP:
AM
Logical channel:
DCCH
Direction:
UE to Network
RRCReconfigurationComplete message
RRCReconfigurationComplete-IEs field descriptions
needForGapsInfoNR
This field is used to indicate the measurement gap requirement information of the UE for NR target bands.
needForGapNCSG-InfoEUTRA
This field is used to indicate the measurement gap and NCSG requirement information of the UE for E-UTRA target bands.
needForGapNCSG-InfoNR
This field is used to indicate the measurement gap and NCSG requirement information of the UE for NR target bands.
scg-Response
In case of NR-DC (nr-SCG-Response), this field includes the RRCReconfigurationComplete message. In case of NE-DC (eutra-SCG-Response), this field includes the E-UTRA RRCConnectionReconfigurationComplete message as specified in TS 36.331.
selectedCondRRCReconfig
This field indicates the ID of the selected conditional reconfiguration the UE applied upon the execution of CPA or inter-SN CPC.
uplinkTxDirectCurrentList
The Tx Direct Current locations for the configured serving cells and BWPs if requested by the NW (see reportUplinkTxDirectCurrent in CellGroupConfig).
uplinkTxDirectCurrentMoreCarrierList
The Tx Direct Current locations for the configured intra-band CA requested by reportUplinkTxDirectCurrentMoreCarrier-r17.
uplinkTxDirectCurrentTwoCarrierList
The Tx Direct Current locations for the configured uplink intra-band CA with two carriers if requested by the NW (see reportUplinkTxDirectCurrentTwoCarrier-r16 in CellGroupConfig).
Up

 –  RRCRejectp. 384

The RRCReject message is used to reject an RRC connection establishment or an RRC connection resumption.
Signalling radio bearer:
SRB0
RLC-SAP:
TM
Logical channel:
CCCH
Direction:
Network to UE
RRCReject message
RRCReject-IEs field descriptions
waitTime
Wait time value in seconds. The field is always included.
Up

 –  RRCReleasep. 385

The RRCRelease message is used to command the release of an RRC connection or the suspension of the RRC connection.
Signalling radio bearer:
SRB1
RLC-SAP:
AM
Logical channel:
DCCH
Direction:
Network to UE
RRCRelease message
RRCRelease-IEs field descriptions
cellReselectionPriorities
Dedicated priorities to be used for cell reselection as specified in TS 38.304. The maximum number of NR carrier frequencies that the network can configure through FreqPriorityListNR and FreqPriorityListDedicatedSlicing together is eight. If the same frequency is configured in both FreqPriorityListNR and FreqPriorityListDedicatedSlicing, the frequency is only counted once.
cnType
Indicate that the UE is redirected to EPC or 5GC.
deprioritisationReq
Indicates whether the current frequency or RAT is to be de-prioritised.
deprioritisationTimer
Indicates the period for which either the current carrier frequency or NR is deprioritised. Value minN corresponds to N minutes.
measIdleConfig
Indicates measurement configuration to be stored and used by the UE while in RRC_IDLE or RRC_INACTIVE.
mpsPriorityIndication
Indicates the UE can set the establishment cause to mps-PriorityAccess for a new connection following a redirect to NR. If the target RAT is E-UTRA, see TS 36.331. The gNB sets the indication only for UEs authorized to receive MPS treatment as indicated by ARP and/or QoS characteristics at the gNB, and it is applicable only for this instance of release with redirection to carrier/RAT included in the redirectedCarrierInfo field in the RRCRelease message.
noLastCellUpdate
Presence of the field indicates that the last used cell for PEI shall not be updated. When the field is absent, the PEI-capable UE shall update its last used cell with the current cell. The UE shall not update its last used cell with the current cell if the AS security is not activated.
srs-PosRRC-InactiveConfig
SRS for positioning configuration during RRC_INACTIVE state.
suspendConfig
Indicates configuration for the RRC_INACTIVE state. The network does not configure suspendConfig when the network redirect the UE to an inter-RAT carrier frequency or if the UE is configured with a DAPS bearer.
redirectedCarrierInfo
Indicates a carrier frequency (downlink for FDD) and is used to redirect the UE to an NR or an inter-RAT carrier frequency, by means of cell selection at transition to RRC_IDLE or RRC_INACTIVE as specified in TS 38.304. Based on UE capability, the network may include redirectedCarrierInfo in RRCRelease message with suspendConfig if this message is sent in response to an RRCResumeRequest or an RRCResumeRequest1 which is triggered by the NAS layer (see 5.3.1.4 in TS 24.501).
voiceFallbackIndication
Indicates the RRC release is triggered by EPS fallback for IMS voice as specified in TS 23.502.
CarrierInfoNR field descriptions
carrierFreq
Indicates the redirected NR frequency.
ssbSubcarrierSpacing
Subcarrier spacing of SSB in the redirected SSB frequency.
Only the following values are applicable depending on the used frequency:
FR1: 15 or 30 kHz
FR2-1: 120 or 240 kHz
FR2-2: 120, 480, or 960 kHz
smtc
The SSB periodicity/offset/duration configuration for the redirected SSB frequency. It is based on timing reference of PCell. If the field is absent, the UE uses the SMTC configured in the measObjectNR having the same SSB frequency and subcarrier spacing.
RAN-NotificationAreaInfo field descriptions
cellList
A list of cells configured as RAN area.
ran-AreaConfigList
A list of RAN area codes or RA code(s) as RAN area.
PLMN-RAN-AreaConfig field descriptions
plmn-Identity
PLMN Identity to which the cells in ran-Area belong. If the field is absent the UE not in SNPN access mode uses the ID of the registered PLMN. This field is not included for UE in SNPN access mode (for UE in SNPN access mode the ran-Area always belongs to the registered SNPN).
ran-AreaCodeList
The total number of RAN-AreaCodes of all PLMNs does not exceed 32.
ran-Area
Indicates whether TA code(s) or RAN area code(s) are used for the RAN notification area. The network uses only TA code(s) or both TA code(s) and RAN area code(s) to configure a UE. The total number of TACs across all PLMNs does not exceed 16.
PLMN-RAN-AreaCell field descriptions
plmn-Identity
PLMN Identity to which the cells in ran-AreaCells belong. If the field is absent the UE not in SNPN access mode uses the ID of the registered PLMN. This field is not included for UE in SNPN access mode (for UE in SNPN access mode the ran-AreaCells always belongs to the registered SNPN).
ran-AreaCells
The total number of cells of all PLMNs does not exceed 32.
SDT-Config field descriptions
sdt-DRB-ContinueROHC
Indicates whether the PDCP entity of the radio bearers configured for SDT continues or resets the ROHC header compression protocol during PDCP re-establishment during SDT procedure, as specified in TS 38.323. Value cell indicates that ROHC header compression continues when the UE resumes for SDT in the same cell as the PCell when the RRCRelease message was received. Value rna indicates that ROHC header compression continues when the UE resumes for SDT in a cell belonging to the same RNA as the PCell where the RRCRelease message was received. If the field is absent, the UE releases any stored value for this field and the PDCP entity of the radio bearers configured for SDT always resets the ROHC header compression protocol during PDCP re-establishment when SDT procedure is initiated, as specified in TS 38.323.
sdt-DRB-List
Indicates the ID(s) of the DRB(s) that are configured for SDT. If size of the sequence is zero, then the UE assumes that none of the DRBs are configured for SDT. The network only configures MN terminated MCG bearers for SDT.
sdt-SRB2-Indication
Indiates whether SRB2 is configured for SDT or not.
SDT-MAC-PHY-CG-Config field descriptions
cg-SDT-ConfigInitialBWP-DL
Downlink BWP configuration for CG-SDT. If a UE is a RedCap UE and if the initialDownlinkBWP-RedCap is configured in downlinkConfigCommon in SIB1, this field is configured for initialDownlinkBWP-RedCap, otherwise it is configured for initialDownlinkBWP.
cg-SDT-ConfigInitialBWP-NUL
UL BWP configuration for CG-SDT on NUL carrier. If a UE is a RedCap UE and if the initialUplinkBWP-RedCap is configured in uplinkConfigCommon in SIB1, this field is configured for initialUplinkBWP-RedCap, otherwise it is configured for initialUplinkBWP for NUL.
cg-SDT-ConfigInitialBWP-SUL
UL BWP configuration for CG-SDT on SUL carrier configured for the initialUplinkBWP for SUL.
cg-SDT-CS-RNTI
The CS-RNTI value for CG-SDT as specified in TS 38.321.
cg-SDT-RSRP-ThresholdSSB
An RSRP threshold configured for SSB selection for CG-SDT as specified in TS 38.321.
cg-SDT-TA-ValidationConfig
Configuration for the RSRP based TA validation. If this field is not configured, then the UE does not perform RSRP based TA validation.
cg-SDT-timeAlignmentTimer
TAT value for CG-SDT as specified in TS 38.321. The network always configures this field when sdt-MAC-PHY-CG-Config is configured.
CG-SDT-ConfigLCH-Restriction field descriptions
allowedCG-List
This restriction applies only when the UL grant is a configured grant for CG-SDT. If present, UL MAC SDUs from this logical channel can only be mapped to the indicated CG-SDT configured grant configuration. If the size of the sequence is zero, then UL MAC SDUs from this logical channel cannot be mapped to any CG-SDT configured grant configurations. If the field is not present, UL MAC SDUs from this logical channel can be mapped to any CG-SDT configured grant configurations. If the field configuredGrantType1Allowed is present, only those CG-SDT configured grant type 1 configurations indicated in this sequence are allowed for use by this logical channel; otherwise, this sequence shall not include any CG-SDT configured grant type 1 configuration. Corresponds to "allowedCG-List" as specified in TS 38.321.
configuredGrantType1Allowed
If present, or if the capability lcp-Restriction as specified in TS 38.306 is not supported, UL MAC SDUs from this logical channel can be transmitted on a configured grant type 1 for CG-SDT. Otherwise, UL MAC SDUs from this logical channel cannot be transmitted on a configured grant type 1 for CG-SDT. Corresponds to "configuredGrantType1Allowed" in TS 38.321.
logicalChannelIdentity
ID used commonly for the MAC logical channel and for the RLC bearer associated with a servedRadioBearer configured for SDT.
CG-SDT-TA-ValidationConfig field descriptions
cg-SDT-RSRP-ChangeThreshold
The RSRP threshold for TA validation for CG-SDT as specified in TS 38.321. Value dB2 corresponds to 2 dB, value dB4 corresponds to 4 dB and so on.
SRS-PosRRC-InactiveConfig field descriptions
bwp-NUL
BWP configuration for SRS for Positioning during the RRC_INACTIVE state in Normal Uplink Carrier. If the field is absent UE is configured with an SRS for Positioning associated with the initial UL BWP and transmitted, during the RRC_INACTIVE state, inside the initial UL BWP with the same CP and SCS as configured for initial UL BWP.
bwp-SUL
BWP configuration for SRS for Positioning during the RRC_INACTIVE state in Supplementary Uplink Carrier. If the field is absent UE is configured with an SRS for Positioning associated with the initial UL BWP and transmitted, during the RRC_INACTIVE state, inside the initial UL BWP with the same CP and SCS as configured for initial UL BWP.
inactivePosSRS-RSRP-ChangeThreshold
RSRP threshold for the increase/decrease of RSRP for time alignment validation as specified in TS 38.321.
inactivePosSRS-TimeAlignmentTimer
TAT value for SRS for positioning transmission during RRC_INACTIVE state as specified in TS 38.321. The network always configures this field when srs-PosRRC-Inactive is configured.
srs-PosConfigNUL
SRS for Positioning configuration in RRC_INACTIVE state in Normal Uplink Carrier.
srs-PosConfigSUL
SRS for Positioning configuration in RRC_INACTIVE state in Supplementary Uplink Carrier.
SuspendConfig field descriptions
ncd-SSB-RedCapInitialBWP-SDT
Indicates that the UE uses the RedCap-specific initial DL BWP associated with the NCD-SSB for SDT. The network configures this field if a RedCap UE is configured with SDT in the RedCap-specific initial DL BWP not associated with CD-SSB. If configured, the NCD-SSB indicated by this field can only be used during the SDT procedure for CG-SDT or RA-SDT.
ran-ExtendedPagingCycle
The extended DRX (eDRX) cycle for RAN-initiated paging to be applied by the UE. Value rf256 corresponds to 256 radio frames, value rf512 corresponds to 512 radio frames and so on. Value of the field indicates an eDRX cycle which is shorter or equal to the IDLE mode eDRX cycle configured for the UE.
ran-NotificationAreaInfo
Network ensures that the UE in RRC_INACTIVE always has a valid ran-NotificationAreaInfo.
ran-PagingCycle
Refers to the UE specific cycle for RAN-initiated paging. Value rf32 corresponds to 32 radio frames, value rf64 corresponds to 64 radio frames and so on.
sl-UEIdentityRemote
Indicates the C-RNTI to the L2 U2N Remote UE.
t380
Refers to the timer that triggers the periodic RNAU procedure in UE. Value min5 corresponds to 5 minutes, value min10 corresponds to 10 minutes and so on.
Conditional Presence Explanation
L2RemoteUEThe field is mandatory present for L2 U2N Remote UE's RNAU; otherwise it is absent.
RANPagingThis field is optionally present, Need R, if the UE is configured with IDLE eDRX, see TS 24.501; otherwise the field is not present.
Redirection2The field is optionally present, Need R, if redirectedCarrierInfo is included; otherwise the field is not present.
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