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Content for  TS 38.331  Word version:  18.0.0

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 –  UEAssistanceInformationp. 535

The UEAssistanceInformation message is used for the indication of UE assistance information to the network.
Signalling radio bearer:
SRB1, SRB3
RLC-SAP:
AM
Logical channel:
DCCH
Direction:
UE to Network
UEAssistanceInformation message
UEAssistanceInformation field descriptions
activeDuration
Indicates the UE's preferred active duration due to the IDC problem. Value in multiples of 1/32 ms (subMilliSeconds) or in ms (milliSecond). For the latter, value ms1 corresponds to 1 ms, value ms2 corresponds to 2 ms, and so on.
affectedBandwidth
Indicates the bandwidth around the center frequency of the carrier frequency range which is affected by the IDC problem. Value mhz5 corresponds to 5 MHz, value mhz10 corresponds to 10 MHz and so on. If candidateBandwidth is not configured, the UE is allowed to report the frequency range for any bandwidth as indicated by affectedBandwidth, within the frequency band limitation as defined in TS 38.101-1, TS 38.101-2, TS 38.101-3 and TS 38.101-5.
affectedCarrierFreqList
Indicates a list of NR carrier frequencies that are affected by IDC problem.
affectedCarrierFreqRangeList
Indicates a list of NR carrier frequency ranges that are affected by IDC problem.
affectedCarrierFreqCombList
Indicates a list of NR carrier frequencie combinations that are affected by IDC problems due to Inter-Modulation Distortion and harmonics from NR when configured with UL CA or NR-DC.
affectedCarrierFreqRangeCombList
Indicates a list of NR carrier frequency range combinations that are affected by IDC problems due to Inter-Modulation Distortion and harmonics from NR when configured with UL CA or NR-DC
bfd-MeasRelaxationState
Indicates the relaxation state of BFD measurements. Each bit corresponds to a serving cell of the cell group. A serving cell is mapped to the (servCellIndex+1)-th bit, starting from MSB. A bit that is set to 1 indicates that the UE is performing BFD measurements relaxation on the serving cell mapped on the bit. A bit that is set to 0 indicates that the UE is not performing BFD measurements relaxation on the serving cell mapped on the bit. If a serving cell is not configured to the UE, the corresponding bit is set to 0.
centerFreq
Indicates the center frequency of the carrier frequency range which is affected by the IDC problem.
cycleLength
Indicates the UE's preferred cycle length due to the IDC problem. Value in ms. Value ms2 corresponds to 2 ms, value ms3 corresponds to 3 ms, and so on.
delayBudgetReport
Indicates the UE-preferred adjustment to connected mode DRX.
interferenceDirection
Indicates the direction of IDC interference. Value nr indicates that only NR is victim of IDC interference, value other indicates that only another radio is victim of IDC interference and value both indicates that both NR and another radio are victims of IDC interference. The other radio refers to either the ISM radio or GNSS (see TR 36.816).
maxCandidateBandIndex
Indicate the maximum number of band entry index for MUSIM capability restriction reporting.
minSchedulingOffsetPreference
Indicates the UE's preferences on minimumSchedulingOffset of cross-slot scheduling for power saving.
minSchedulingOffsetPreferenceExt
Indicates the UE's preferences on minimumSchedulingOffset of cross-slot scheduling for power saving for SCS 480 kHz and/or 960 kHz.
multiRx-PreferenceFR2
Indicates the UE's preference on single FR2 Rx operation to address overheating or power saving. This field is allowed to be reported only when UE is configured with serving cells operating on FR2.
musim-AffectedBandsList
Indicates the UE's preference on the band(s) and/or combination(s) of bands with restricted capability for MUSIM operation.
musim-AvoidedBandsList
Indicates the UE's preference on band(s) and/or combination(s) of bands to be avoided or MUSIM purpose.
musim-capabilityRestricted
Indicates the UE's preference on the temporary capability restriction on the band(s) and/or combination(s) of bands for MUSIM operation.
musim-Cell-SCG-ToReleasedList
Indicates the UE's preference on serving cell(s) and/or SCG to be released for MUSIM operation.
musim-CellToAffectList-r18
Indicates the UE's preference on the temporary capability restriction on the serving cell(s) for MUSIM operation.
musim-GapKeepPreference
Indicates the UE's preference to keep all collided gaps for requested MUSIM gap(s). If the field is absent, the collided MUSIM gaps with lower priority shall be dropped.
musim-GapPreferenceList
Indicates the UE's MUSIM gap preference and related MUSIM gap configuration, as defined in clause 9.1.10 of TS 38.133.
musim-GapPriorityPreferenceList
Indicates the UE's MUSIM gap priority preference for periodic MUSIM gaps as specified in TS 38.133. If the UE includes musim-GapPriorityPreferenceList-r18, it includes the same number of entries, and listed in the same order for periodic gaps, as in musim-GapPreferenceList-r17.
musim-MaxCC
Indicates the UE maximum number of CCs per DL/UL.
musim-NeedForGapsInfoNR
This field is used to indicate the measurement gap requirement information of the UE for NR target bands when in MUSIM operation. The field is not included in NR-DC.
musim-PreferredRRC-State
Indicates the UE's preferred RRC state when leaving RRC_CONNECTED.
nonSDT-DataIndication
Informs the network about the arrival of data and/or signaling mapped to radio bearers not configured for SDT while SDT procedure is ongoing.
preferredDRX-InactivityTimer
Indicates the UE's preferred DRX inactivity timer length for power saving. Value in ms (milliSecond). ms0 corresponds to 0, ms1 corresponds to 1 ms, ms2 corresponds to 2 ms, and so on. If the field is absent from the DRX-Preference IE, it is interpreted as the UE having no preference for the DRX inactivity timer. If secondary DRX group is configured, the preferredDRX-InactivityTimer only applies to the default DRX group.
preferredDRX-LongCycle
Indicates the UE's preferred long DRX cycle length for power saving. Value in ms. ms10 corresponds to 10ms, ms20 corresponds to 20 ms, ms32 corresponds to 32 ms, and so on. If preferredDRX-ShortCycle is provided, the value of preferredDRX-LongCycle shall be a multiple of the preferredDRX-ShortCycle value. If the field is absent from the DRX-Preference IE, it is interpreted as the UE having no preference for the long DRX cycle.
preferredDRX-ShortCycle
Indicates the UE's preferred short DRX cycle length for power saving. Value in ms. ms2 corresponds to 2ms, ms3 corresponds to 3 ms, ms4 corresponds to 4 ms, and so on. If the field is absent from the DRX-Preference IE, it is interpreted as the UE having no preference for the short DRX cycle.
preferredDRX-ShortCycleTimer
Indicates the UE's preferred short DRX cycle timer for power saving. Value in multiples of preferredDRX-ShortCycle. A value of 1 corresponds to preferredDRX-ShortCycle, a value of 2 corresponds to 2 * preferredDRX-ShortCycle and so on. If the field is absent from the DRX-Preference IE, it is interpreted as the UE having no preference for the short DRX cycle timer. A preference for the short DRX cycle is indicated when a preference for the short DRX cycle timer is indicated.
preferredK0
Indicates the UE's preferred value of k0 (slot offset between DCI and its scheduled PDSCH - see clause 5.1.2.1 of TS 38.214) for cross-slot scheduling for power saving. Value is defined for each subcarrier spacing (numerology) in units of slots. sl1 corresponds to 1 slot, sl2 corresponds to 2 slots, sl4 corresponds to 4 slots, and so on. If a value for a subcarrier spacing is absent, it is interpreted as the UE having no preference on k0 for cross-slot scheduling for that subcarrier spacing. If the field is absent from the MinSchedulingOffsetPreference IE, it is interpreted as the UE having no preference on k0 for cross-slot scheduling.
preferredK2
Indicates the UE's preferred value of k2 (slot offset between DCI and its scheduled PUSCH - see clause 6.1.2.1 of TS 38.214) for cross-slot scheduling for power saving. Value is defined for each subcarrier spacing (numerology) in units of slots. sl1 corresponds to 1 slot, sl2 corresponds to 2 slots, sl4 corresponds to 4 slots, and so on. If a value for a subcarrier spacing is absent, it is interpreted as the UE having no preference on k2 for cross-slot scheduling for that subcarrier spacing. If the field is absent from the MinSchedulingOffsetPreference IE, it is interpreted as the UE having no preference on k2 for cross-slot scheduling.
preferredRRC-State
Indicates the UE's preferred RRC state. The value idle is indicated if the UE prefers to be released from RRC_CONNECTED and transition to RRC_IDLE. The value inactive is indicated if the UE prefers to be released from RRC_CONNECTED and transition to RRC_INACTIVE. The value connected is indicated if the UE prefers to revert an earlier indication to leave RRC_CONNECTED state. The value outOfConnected is indicated if the UE prefers to be released from RRC_CONNECTED and has no preferred RRC state to transition to. The value connected can only be indicated if the UE is configured with connectedReporting.
propagationDelayDifference
Indicates the one-way service link propagation delay difference between serving cell and each neighbour cell included in neighCellInfoList, defined as neighbour cell's service link propagation delay minus serving cell's service link propagation delay, in number of ms. First entry in propagationDelayDifference corresponds to first entry in neighCellInfoList, second entry in propagationDelayDifference corresponds to second entry in neighCellInfoList, and so on.
reducedMaxBW-FR1
Indicates the UE's preference on reduced configuration corresponding to the maximum aggregated bandwidth across all downlink carrier(s) and across all uplink carrier(s) of FR1, to address overheating or power saving. This field is allowed to be reported only when UE is configured with serving cell(s) operating on FR1. The aggregated bandwidth across all downlink carrier(s) of FR1 is the sum of bandwidth of active downlink BWP(s) across all activated downlink carrier(s) of FR1. The aggregated bandwidth across all uplink carrier(s) of FR1 is the sum of bandwidth of active uplink BWP(s) across all activated uplink carrier(s) of FR1. If the field is absent from the MaxBW-Preference IE or the OverheatingAssistance IE, it is interpreted as the UE having no preference on the maximum aggregated bandwidth of FR1.
When indicated to address overheating, this maximum aggregated bandwidth includes carrier(s) of FR1 of both the NR MCG and the SCG. This maximum aggregated bandwidth only includes carriers of FR1 of the SCG in (NG)EN-DC. Value mhz0 is not used when indicated to address overheating.
When indicated to address power saving, this maximum aggregated bandwidth includes carrier(s) of FR1 of the cell group that this UE assistance information is associated with. The aggregated bandwidth can only range up to the current active configuration when indicated to address power savings.
reducedMaxBW-FR2
Indicates the UE's preference on reduced configuration corresponding to the maximum aggregated bandwidth across all downlink carrier(s) and across all uplink carrier(s) of FR2-1, to address overheating or power saving. This field is allowed to be reported only when UE is configured with serving cell(s) operating on FR2-1. The aggregated bandwidth across all downlink carrier(s) of FR2-1 is the sum of bandwidth of active downlink BWP(s) across all activated downlink carrier(s) of FR2-1. The aggregated bandwidth across all uplink carrier(s) of FR2-1 is the sum of bandwidth of active uplink BWP(s) across all activated uplink carrier(s) of FR2-1. If the field is absent from the MaxBW-Preference IE or the OverheatingAssistance IE, it is interpreted as the UE having no preference on the maximum aggregated bandwidth of FR2-1.
When indicated to address overheating, this maximum aggregated bandwidth includes carrier(s) of FR2-1 of both the NR MCG and the NR SCG. This maximum aggregated bandwidth only includes carriers of FR2-1 of the SCG in (NG)EN-DC.
When indicated to address power saving, this maximum aggregated bandwidth includes carrier(s) of FR2-1 of the cell group that this UE assistance information is associated with. The aggregated bandwidth can only range up to the current active configuration when indicated to address power savings.
reducedMaxBW-FR2-2
Indicates the UE's preference on reduced configuration corresponding to the maximum aggregated bandwidth across all downlink carrier(s) and across all uplink carrier(s) of FR2-2, to address overheating or power saving. This field is allowed to be reported only when UE is configured with serving cell(s) operating on FR2-2. The aggregated bandwidth across all downlink carrier(s) of FR2-2 is the sum of bandwidth of active downlink BWP(s) across all activated downlink carrier(s) of FR2-2. The aggregated bandwidth across all uplink carrier(s) of FR2-2 is the sum of bandwidth of active uplink BWP(s) across all activated uplink carrier(s) of FR2-2. If the field is absent from the MaxBW-PreferenceFR2-2 IE or the OverheatingAssistance IE, it is interpreted as the UE having no preference on the maximum aggregated bandwidth of FR2-2.
When indicated to address overheating, this maximum aggregated bandwidth includes carrier(s) of FR2-2 of both the NR MCG and the NR SCG. This maximum aggregated bandwidth only includes carriers of FR2-2 of the SCG in (NG)EN-DC.
When indicated to address power saving, this maximum aggregated bandwidth includes carrier(s) of FR2-2 of the cell group that this UE assistance information is associated with. The aggregated bandwidth can only range up to the current active configuration when indicated to address power savings.
reducedCCsDL
Indicates the UE's preference on reduced configuration corresponding to the maximum number of downlink SCells indicated by the field, to address overheating or power saving.
When indicated to address overheating, this maximum number includes both SCells of the NR MCG and PSCell/SCells of the SCG. This maximum number only includes PSCell/SCells of the SCG in (NG)EN-DC.
When indicated to address power saving, this maximum number includes PSCell/SCells of the cell group that this UE assistance information is associated with. The maximum number of downlink SCells can only range up to the current active configuration when indicated to address power savings.
reducedCCsUL
Indicates the UE's preference on reduced configuration corresponding to the maximum number of uplink SCells indicated by the field, to address overheating or power saving.
When indicated to address overheating, this maximum number includes both SCells of the NR MCG and PSCell/SCells of the SCG. This maximum number only includes PSCell/SCells of the SCG in (NG)EN-DC.
When indicated to address power saving, this maximum number includes PSCell/SCells of the cell group that this UE assistance information is associated with. The maximum number of uplink SCells can only range up to the current active configuration when indicated to address power savings.
reducedMIMO-LayersFR1-DL
Indicates the UE's preference on reduced configuration corresponding to the maximum number of downlink MIMO layers of each serving cell operating on FR1 indicated by the field, to address overheating or power saving. This field is allowed to be reported only when UE is configured with serving cells operating on FR1. The maximum number of downlink MIMO layers can only range up to the maximum number of MIMO layers configured across all activated downlink carrier(s) of FR1 in the cell group when indicated to address power savings.
reducedMIMO-LayersFR1-UL
Indicates the UE's preference on reduced configuration corresponding to the maximum number of uplink MIMO layers of each serving cell operating on FR1 indicated by the field, to address overheating or power saving (see NOTE 1). This field is allowed to be reported only when UE is configured with serving cells operating on FR1. The maximum number of uplink MIMO layers can only range up to the maximum number of MIMO layers configured across all activated uplink carrier(s) of FR1 in the cell group when indicated to address power savings.
reducedMIMO-LayersFR2-DL
Indicates the UE's preference on reduced configuration corresponding to the maximum number of downlink MIMO layers of each serving cell operating on FR2-1 indicated by the field, to address overheating or power saving. This field is allowed to be reported only when UE is configured with serving cells operating on FR2-1. The maximum number of downlink MIMO layers can only range up to the maximum number of MIMO layers configured across all activated downlink carrier(s) of FR2-1 in the cell group when indicated to address power savings.
reducedMIMO-LayersFR2-UL
Indicates the UE's preference on reduced configuration corresponding to the maximum number of uplink MIMO layers of each serving cell operating on FR2-1 indicated by the field, to address overheating or power saving (see NOTE 1). This field is allowed to be reported only when UE is configured with serving cells operating on FR2-1. The maximum number of uplink MIMO layers can only range up to the maximum number of MIMO layers configured across all activated uplink carrier(s) of FR2-1 in the cell group when indicated to address power savings.
reducedMIMO-LayersFR2-2-DL
Indicates the UE's preference on reduced configuration corresponding to the maximum number of downlink MIMO layers of each serving cell operating on FR2-2 indicated by the field, to address overheating or power saving. This field is allowed to be reported only when UE is configured with serving cells operating on FR2-2. The maximum number of downlink MIMO layers can only range up to the maximum number of MIMO layers configured across all activated downlink carrier(s) of FR2-2 in the cell group when indicated to address power savings.
reducedMIMO-LayersFR2-2-UL
Indicates the UE's preference on reduced configuration corresponding to the maximum number of uplink MIMO layers of each serving cell operating on FR2-2 indicated by the field, to address overheating or power saving (see NOTE 1). This field is allowed to be reported only when UE is configured with serving cells operating on FR2-2. The maximum number of uplink MIMO layers can only range up to the maximum number of MIMO layers configured across all activated uplink carrier(s) of FR2-2 in the cell group when indicated to address power savings.
referenceTimeInfoPreference
Indicates whether the UE prefers being provisioned with the timing information specified in the IE ReferenceTimeInfo.
resumeCause
Provides the resume cause based on the information received from the upper layers.
rlm-MeasRelaxationState
Indicates the relaxation state of RLM measurements. Value true indicates that the UE is performing relaxation of RLM measurements, and value false indicates that the UE is not performing relaxation of RLM measurements.
rrm-MeasRelaxationFulfilment
Indicates whether the UE fulfils the relaxed measurement criterion for stationary UE in clause 5.7.4.4. Value true indicates that the UE fulfils the criterion, and value false indicates that the UE does not fulfil the criterion.
sl-QoS-FlowIdentity
This identity uniquely identifies one sidelink QoS flow between the UE and the network in the scope of UE, which is unique for different destination and cast type.
sl-PRS-DelayBudget
Indicates the SL-PRS delay budget. Upper bound value for the associated response time provided by upper layers (see TS 38.355).
sl-PRS-Periodicity
Indicates the periodicity of SL-PRS transmission.
sl-PRS-Priority
Indicates the priority of SL-PRS. Value 1 is the highest priority whereas value 8 is the lowest priority.
sl-UE-AssistanceInformationNR
Indicates the traffic characteristic of sidelink logical channel(s), specified in the IE SL-TrafficPatternInfo, that are setup for NR sidelink communication.
slotOffset
Indicates the UE's preferred slot offset due to the IDC problem, in multiples of 1/32 ms.
startOffset
Indicates the UE's preferred start offset due to the IDC problem, in multiples of 1 ms.
type1
Indicates the preferred amount of increment/decrement to the long DRX cycle length with respect to the current configuration. Value in number of milliseconds. Value ms40 corresponds to 40 milliseconds, msMinus40 corresponds to -40 milliseconds and so on.
ul-GapFR2-PatternPreference
Indicates the UE's preference on FR2 UL gap pattern as defined in TS 38.133.
victimSystemType
Indicate the list of victim system types to which IDC interference is caused from NR. Value gps, glonass, bds, galileo and navIC indicates the type of GNSS. Value wlan indicates WLAN and value bluetooth indicates Bluetooth. Value uwb indicates Ultra Wide Band.
SL-TrafficPatternInfo field descriptions
messageSize
Indicates the maximum TB size based on the observed traffic pattern. The value refers to the index of TS 38.321, Table 6.1.3.1-2.
timingOffset
This field indicates the estimated timing for a packet arrival in a sidelink logical channel. Specifically, the value indicates the timing offset with respect to subframe#0 of SFN#0 in milliseconds.
trafficPeriodicity
This field indicates the estimated data arrival periodicity in a sidelink logical channel. Value ms20 corresponds to 20 ms, ms50 corresponds to 50 ms and so on.
UL-TrafficInfo field descriptions
burstArrivalTime
Indicates the average value of the arrival time of the first packet of the Data Burst for the concerned QoS flow. When indicated together with jitterRange, burstArrivalTime is used as a reference time for the indicated jitter range. If burstArrivalTime is indicated as referenceTime, the indicated time in 10ns unit from the origin is refDays*86400*1000*100000 + refSeconds*1000*100000 + refMilliSeconds*100000 + refTenNanoSeconds. The refDays field specifies the sequential number of days (with day count starting at 0) from 00:00:00 on Gregorian calendar date 6 January, 1980 (start of GPS time). If burstArrivalTime is indicated as referenceSFN-AndSlot, it refers to the UL timing of the closest SFN and slot of the PCell with the indicated number.
jitterRange
Indicates the maximum deviation of the arrival time of the first packet of a Data Burst compared to the time indicated with burstArrivalTime and the periodicity of the Data Bursts. lowerBound indicates the negative deviation while upperBound indicates the positive deviation. This field shall only be reported together with the burstArrivalTime or after the burstArrivalTime has been already reported. Value ms0 corresponds to 0 ms, value 0dot5 to 0.5 ms, value ms1 to 1 ms and so on. Value beyondMs7 indicates the jitter bound is higher than 7 ms. Value 0 ms means there is no Data Burst arrival time deviation from the indicated burstArrivalTime.
pduSetIdentification
Indicates whether the UE is able to identify PDU Set related information for the QoS flow. If set to true, the UE is able to identify PDU set related information, otherwise, the UE is not able to do so.
qfi
Identity of the QoS flow to which this UL traffic information refers.
trafficPeriodicity
Indicates the average time period between the start times of two data bursts, expressed in the number of microseconds.
Up

 –  UECapabilityEnquiryp. 550

The UECapabilityEnquiry message is used to request UE radio access capabilities for NR as well as for other RATs.
Signalling radio bearer:
SRB1
RLC-SAP:
AM
Logical channel:
DCCH
Direction:
Network to UE
UECapabilityEnquiry message
Up

 –  UECapabilityInformationp. 551

The IE UECapabilityInformation message is used to transfer UE radio access capabilities requested by the network.
Signalling radio bearer:
SRB1
RLC-SAP:
AM
Logical channel:
DCCH
Direction:
UE to Network
UECapabilityInformation message
Up

 –  UEInformationRequestp. 552

The UEInformationRequest message is used by the network to retrieve information from the UE.
Signalling radio bearer:
SRB1
RLC-SAP:
AM
Logical channel:
DCCH
Direction:
Network to UE
UEInformationRequest message
UEInformationRequest-IEs field descriptions
coarseLocationRequest
This field is used to request UE to report coarse location information.
connEstFailReportReq
This field is used to indicate whether the UE shall report information about the connection failure.
flightPathInfoReq
This field is used to indicate whether the UE can report information about the flight path information, if available, and to specify the flight path information report configuration.
idleModeMeasurementReq
This field indicates that the UE shall report the idle/inactive measurement information, if available, to the network in the UEInformationResponse message.
logMeasReportReq
This field is used to indicate whether the UE shall report information about logged measurements.
mobilityHistoryReportReq
This field is used to indicate whether the UE shall report information about mobility history information.
ra-ReportReq
This field is used to indicate whether the UE shall report information about the random access procedure.
rlf-ReportReq
This field is used to indicate whether the UE shall report information about the radio link failure.
successHO-ReportReq
This field is used to indicate whether the UE shall report information about the successful handover report.
successPSCell-ReportReq
This field is used to indicate whether the UE shall report information about the successful PSCell change or addition report.
FlightPathInfoReportConfig field descriptions
includeTimeStamp
Indicates whether time stamp of each way point can be reported in the flight path information report if time stamp information is available at the UE.
maxWayPointNumber
Indicates the maximum number of way points UE can include in the flight path information report if this information is available at the UE.
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