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Content for  TS 38.331  Word version:  17.4.0

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 –  SL-PagingIdentityRemoteUE |R17|p. 1113

The IE SL-PagingIdentityRemoteUE includes the Remote UE's paging UE ID.
SL-PagingIdentityRemoteUE information element
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 –  SL-PBPS-CPS-Config |R17|p. 1113

The IE SL-PBPS-CPS-Config specifies the operation information for a resource pool which can be (pre-)configured to enable full sensing only, partial sensing only, random resource selection only, or any combination(s) thereof.
SL-PBPS-CPS-Config information element
SL-PBPS-CPS-Config field descriptions
sl-Additional-PBPS-Occasion
Indicates that UE additionally monitors periodic sensing occasions that correspond to a set of values. (see clause 8.1.4 of TS 38.214).
sl-AllowedResourceSelectionConfig
Indicates the allowed resource selection mechanism(s), i.e. full sensing only, partial sensing only, random resource selection only, or any combination(s) thereof. (see clause 8.1.4 of TS 38.214). Only c1, c4 , c5 or c7 can be configured for a Rel-16 resource pool. If this field is not configured for a resource pool included in sl-TxPoolSelectedNormal, only full sensing is allowed in the corresponding resource pool.
c1: only full sensing allowed
c2: only partial sensing allowed
c3: only random selection allowed
c4: full sensing+random selection allowed
c5: full sensing+ partial sensing allowed
c6: partial sensing + random selection allowed
c7: full sensing+ partial sensing + random selection allowed.
sl-CPS-WindowAperiodic
Parameter that indicates the minimum size of contiguous partial sensing window in logical slot units for a resource (re)selection procedure and re-evaluation/pre-emption checking triggered by aperiodic transmission. (see clause 8.1.4 of TS 38.214). If not configured, the size of contiguous partial sensing window in logical slot units is 31.
sl-CPS-WindowPeriodic
Indicates the size of contiguous partial sensing window in logical slot units when UE performs periodic-based and contiguous partial sensing for a resource (re)selection procedure triggered by periodic transmission. If not configured, the size of contiguous partial sensing window in logical slot units is 31.
sl-DefaultCBR-PartialSensing
Indicates default value of SL CBR measurement for a UE that is configured to perform partial sensing by its higher layer (including when SL DRX is configured) if the number of SL RSSI measurement slots over CBR measurement window is below sl-MinNumRssiMeasurementSlots, (see clause 8.1.6 of TS 38.214). Value 0 corresponds to 0, value 1 to 0.01, value 2 to 0.02, and so on.
sl-DefaultCBR-RandomSelection
Indicates default value of CBR measurement for a UE that performs random resource selection if no SL CBR measurement result over SL CBR measurement window, (see clause 8.1.6 of TS 38.214). Value 0 corresponds to 0, value 1 to 0.01, value 2 to 0.02, and so on.
sl-MinNumCandidateSlotsAperiodic
Indicates the minimum number of Y' slots that are included in the possible candidate resources corresponding to periodic-based partial sensing and/or contiguous partial sensing for resource (re)selection triggered by aperiodic transmission. (see clause 8.1.4 of TS 38.214).
sl-MinNumCandidateSlotsPeriodic
Indicates the minimum number of Y slots that are included in the possible candidate resources corresponding to periodic-based partial sensing for resource (re)selection triggered by periodic transmission. (see clause 8.1.4 of TS 38.214).
sl-MinNumRssiMeasurementSlots
Indicates a threshold for a minimum number of SL RSSI measurement slots over CBR measurement window for which the SL RSSI is measured for a UE that is configured to perform partial sensing by its higher layer (including when SL DRX is configured). (see clause 8.1.6 of TS 38.214).
sl-PartialSensingInactiveTime
Indicates whether or not UE is required to perform SL reception of PSCCH and RSRP measurement for partial sensing on slots in SL DRX inactive time when partial sensing is configured by its higher layer. (see clause 8.1.4 of TS 38.214).
sl-PBPS-OccasionReservePeriodList
Indicates the subset of periodicity values from sl-ResourceReservePeriodList used to determine periodic sensing occasions in periodic-based partial sensing, by means of an index to the corresponding entry in sl-ResourceReservePeriodList-r16. If not configured, all periodicity values from sl-ResourceReservePeriodList are used to determine periodic sensing occasions in periodic-based partial sensing (see clause 8.1.4 of TS 38.214).
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 –  SL-PDCP-Configp. 1116

The IE SL-PDCP-Config is used to set the configurable PDCP parameters for a sidelink radio bearer.
SL-PDCP-Config information element
SL-PDCP-Config field descriptions
sl-DiscardTimer
Value in ms of discardTimer specified in TS 38.323. Value ms50 corresponds to 50 ms, value ms100 corresponds to 100 ms and so on.
sl-OutOfOrderDelivery
Indicates whether or not outOfOrderDelivery specified in TS 38.323 is configured. This field should be either always present or always absent, after the radio bearer is established.
sl-PDCP-SN-Size
PDCP sequence number size for unicast NR sidelink communication, 12 or 18 bits, as specified in TS 38.323. For groupcast and broadcast NR sidelink communication, only 12 bits is applicable, as specified in 9.1.1.5.
Conditional Presence Explanation
SetupThe field is mandatory present in case of sidelink DRB setup via dedicated signaling and in case of sidelink DRB configuration via system information and pre-configuration; otherwise the field is optionally present, need M.
Setup2The field is mandatory present in case of sidelink DRB setup via dedicated signaling and in case of sidelink DRB configuration via system information and pre-configuration for RLC-AM and RLC-UM for unicast NR sidelink communication; otherwise the field is not present, Need M.
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 –  SL-PSBCH-Config |R17|p. 1116

The IE SL-PSBCH-Config indicates PSBCH transmission parameters on each sidelink bandwidth part.
SL-PSBCH-Config information element
SL-PSBCH-Config field descriptions
dl-Alpha-PSBCH
Indicates alpha value for DL pathloss based power control for PSBCH. When the field is not configured the UE applies the value 1.
dl-P0-PSBCH
Indicates P0 value for DL pathloss based power control for PSBCH. If not configured, DL pathloss based power control is disabled for PSBCH. When dl-P0-PSBCH-r17 is configured, the UE ignores dl-P0-PSBCH-r16. A Remote UE which is out of coverage, considers downlink pathloss based power control is disabled for PSBCH when dl-P0-PSBCH is configured.
Up

 –  SL-PSSCH-TxConfigListp. 1117

The IE SL-PSSCH-TxConfigList indicates PSSCH transmission parameters. When lower layers select parameters from the range indicated in IE SL-PSSCH-TxConfigList, the UE considers both configurations in IE SL-PSSCH-TxConfigList and the CBR-dependent configurations represented in IE SL-CBR-PriorityTxConfigList. Only one IE SL-PSSCH-TxConfig is provided per SL-TypeTxSync.
SL-PSSCH-TxConfigList information element
SL-PSSCH-TxConfigList field descriptions
sl-MaxTxTransNumPSSCH
Indicates the maximum transmission number (including new transmission and retransmission) for PSSCH.
sl-MaxTxPower
This field indicates the maximum transmission power for transmission on PSSCH and PSCCH.
sl-MinMCS-PSSCH, sl-MaxMCS-PSSCH
This field indicates the minimum and maximum MCS values used for transmissions on PSSCH. The UE shall ignore the minimum and maximum MCS values used for the associated MCS table(s) in sl-ParametersAboveThres-r16 and sl-ParametersBelowThres-r16 if sl-ParametersAboveThres-v1650 and sl-ParametersBelowThres-v1650 are present, respectively.
sl-MinSubChannelNumPSSCH, sl-MaxSubChannelNumPSSCH
This field indicates the minimum and maximum number of sub-channels which may be used for transmissions on PSSCH.
sl-TypeTxSync
This field indicates the synchronization reference type. For configurations by the eNB/gNB, only gnbEnb can be configured; and for pre-configuration or when this field is absent, the configuration is applicable for all synchronization reference types.
sl-ThresUE-Speed
This field indicates a UE absolute speed threshold.
Conditional Presence Explanation
CBRThe field is optionally present, Need R, when the IE SL-PSSCH-TxParameters is present in SL-CBR-CommonTxConfigList, SL-UE-SelectedConfig, SIB12 or SidelinkPreconfigNR; otherwise the field is not present, need R.
Up

 –  SL-QoS-FlowIdentityp. 1118

The IE SL-QoS-FlowIdentity is used to identify a sidelink QoS flow.
SL-QoS-FlowIdentity information element

 –  SL-QoS-Profilep. 1119

The IE SL-QoS-Profile is used to give the QoS parameters for a sidelink QoS flow. Need codes or conditions specified for SL-QoS-Profile do not apply, in case SL-QoS-Profile is included in SidelinkUEInformationNR.
SL-QoS-Profile information element
SL-QoS-Profile field descriptions
sl-GFBR
Indicate the guaranteed bit rate for a GBR QoS flow. The unit is: Kbit/s
sl-MFBR
Indicate the maximum bit rate for a GBR QoS flow. The unit is: Kbit/s
sl-PQI
This field indicates either the PQI for standardized PQI or non-standardized QoS parameters.
sl-Range
This field indicates the range parameter of the Qos flow, as defined in clause 5.4.1.1.1 of TS 23.287. It is present only for groupcast. The unit is meter.
SL-PQI field descriptions
sl-AveragingWindow
Indicates the Averaging Window for a QoS flow, and applies to GBR QoS flows only. Unit: ms. The default value of the IE is 2000ms.
sl-MaxDataBurstVolume
Indicates the Maximum Data Burst Volume for a QoS flow, and applies to delay critical GBR QoS flows only. Unit: byte.
sl-PacketDelayBudget
Indicates the Packet Delay Budget for a QoS flow. Upper bound value for the delay that a packet may experience expressed in unit of 0.5ms.
sl-PacketErrorRate
Indicates the Packet Error Rate for a QoS flow. The packet error rate is expressed as Scalar x 10-k where k is the Exponent.
sl-PriorityLevel
Indicates the Priority Level for a QoS flow. Values ordered in decreasing order of priority, i.e. with 1 as the highest priority and 8 as the lowest priority.
sl-StandardizedPQI
Indicate the PQI for standardized PQI.
Up

 –  SL-QuantityConfigp. 1120

The IE SL-QuantityConfig specifies the layer 3 filtering coefficients for NR SL RSRP measurement for a destination.
SL-QuantityConfig information element
SL-QuantityConfig field descriptions
sl-FilterCoefficientDMRS
DMRS based L3 filter configuration:
Specifies L3 filter configuration for sidelink RSRP measurement result from the L1 fiter(s), as defined in TS 38.215.
Up

 –  SL-RadioBearerConfigp. 1121

The IE SL-RadioBearerConfig specifies the sidelink DRB configuration information for NR sidelink communication.
SL-RadioBearerConfig information element
SL-RadioBearerConfig field descriptions
sl-PDCP-Config
This field indicates the PDCP parameters for the sidelink DRB.
sl-SDAP-Config
This field indicates how to map sidelink QoS flows to sidelink DRB.
slrb-Uu-ConfigIndex
This field indicates the index of sidelink DRB configuration.
sl-TransRange
This field indicates the transmission range of the sidelink DRB. The unit is meter.
Conditional Presence Explanation
SLRBSetupThe field is mandatory present in case of sidelink DRB setup via the dedicated signalling and in case of sidelink DRB configuration via system information and pre-configuration; otherwise the field is optionally present, need M.
Up

 –  SL-RelayUE-Config |R17|p. 1121

The IE SL-RelayUE-Config specifies the configuration information for NR sidelink U2N Relay UE.
SL-RelayUE-Config information element
SL-RelayUE-Config field descriptions
threshHighRelay
Indicates the upper threshold of Uu RSRP for a UE that is in network coverage to evaluate AS layer conditions for U2N relay UE operation.
threshLowRelay
Indicates the lower threshold of Uu RSRP for a UE that is in network coverage to evaluate AS layer conditions for U2N relay UE operation.
Conditional Presence Explanation
ThreshHighRelayThis field is mandatory present if threshHighRelay is included. Otherwise, the field is absent, Need R.
ThreshLowRelayThis field is mandatory present if threshLowRelay is included. Otherwise, the field is absent, Need R.
Up

 –  SL-RemoteUE-Config |R17|p. 1122

The IE SL-RemoteUE-Config specifies the configuration information for NR sidelink U2N Remote UE.
SL-RemoteUE-Config information element
SL-RemoteUE-Config field descriptions
sl-ReselectionConfig
Includes the parameters used by the U2N remote UE when selecting/ reselecting a U2N relay UE.
thresHighRemote
Indicates the threshold of Uu RSRP for a UE that is in network coverage to evaluate AS layer conditions for U2N remote UE operation.
SL-ReselectionConfig field descriptions
sl-FilterCoefficientRSRP
Specifies L3 filter coefficient for SL communication/ discovery RSRP measurement results from L1 filter.
sl-RSRP-Thresh
Indicates the threshold of SL communication/ discovery RSRP for a U2N remote UE to perform relay UE selection/ reselection.
Conditional Presence Explanation
SL-RSRP-ThreshThis field is mandatory present if sl-RSRP-Thresh is included. Otherwise, the field is absent, Need R.
ThreshHighRemoteThis field is mandatory present if threshHighRemote is included. Otherwise, the field is absent, Need R.
Up

 –  SL-ReportConfigListp. 1123

The IE SL-ReportConfigList concerns a list of SL measurement reporting configurations to add or modify for a destination.
SL-ReportConfigList information element
SL-ReportConfig field descriptions
sl-ReportType
Type of the configured sidelink measurement report.
SL-EventTriggerConfig field descriptions
sl-EventId
Choice of sidelink measurement event triggered reporting criteria.
sl-ReportAmount
Number of sidelink measurement reports applicable for sl-EventTriggered report type.
sl-ReportInterval
Indicates the interval between periodical reports (i.e., when sl-ReportAmount exceeds 1) for sl-EventTriggered report type.
sl-ReportOnLeave
indicates whether or not the UE shall initiate the sidelink measurement reporting procedure when the leaving condition is met for a frequency in sl-FrequencyTriggeredList, as specified in clause 5.8.10.4.1.
sl-ReportQuantity
The sidelink measurement quantities to be included in the sidelink measurement report.
sl-TimeToTrigger
Time during which specific criteria for the event needs to be met in order to trigger a sidelink measurement report.
sN-Threshold
Threshold used for events S1 and S2 specified in clauses 5.8.10.4.2 and 5.8.10.4.3, respectively.
SL-PeriodicalReportConfig field descriptions
sl-ReportAmount
Number of sidelink measurement reports applicable for sl-Periodical report type.
sl-ReportInterval
Indicates the interval between periodical reports (i.e., when sl-ReportAmount exceeds 1) for sl-Periodical report type.
sl-ReportQuantity
The sidelink measurement quantities to be included in the sidelink measurement report.
Up

 –  SL-ResourcePoolp. 1125

The IE SL-ResourcePool specifies the configuration information for NR sidelink communication resource pool.
SL-ResourcePool information element
SL-ZoneConfigMCR field descriptions
sl-TransRange
Indicates the communication range requirement for the corresponding sl-ZoneConfigMCR-Index.
sl-ZoneConfig
Indicates the zone configuration for the corresponding sl-ZoneConfigMCR-Index.
sl-ZoneConfigMCR-Index
Indicates the codepoint of the communication range requirement field in SCI.
SL-ResourcePool field descriptions
dummy
This field is not used in the specification. If received it shall be ignored by the UE.
sl-Additional-MCS-Table
Indicates the MCS table(s) additionally used in the resource pool. 64QAM table is (pre-)configured as default. Zero, one or two can be additionally (pre-)configured using the 256QAM and/or low-SE MCS tables. If two MCS tables are indicated, 256QAM MCS table is the 1st table and qam64lowSE MCS table is the 2nd table as specified in clause 8.1.3.1 of TS 38.214.
sl-FilterCoefficient
This field indicates the filtering coefficient for long-term measurement and reference signal power derivation used for sidelink open-loop power control.
sl-InterUE-CoordinationConfig
Indicates the configured sidelink inter-UE coordination parameters.
sl-NumSubchannel
Indicates the number of subchannels in the corresponding resource pool, which consists of contiguous PRBs only.
sl-PBPS-CPS-Config
Indicates the allowed resource allocation schemes of full sensing only, partial sensing only, random resource selection only, or any combination(s), and the related configuration for power saving resource allocation schemes. This field is absent for sl-TxPoolExceptional.
sl-PreemptionEnable
Indicates whether pre-emption is disabled or enabled in a resource pool. If the field is present and the value is pl1, pl2, and so on (but not enabled), it means that pre-emption is enabled and a priority level p_preemption is configured. If the field is present and the value is enabled, the pre-emption is enabled (but p_preemption is not configured) and pre-emption is applicable to all levels.
sl-PriorityThreshold-UL-URLLC
Indicates the threshold used to determine whether NR sidelink transmission is prioritized over uplink transmission of priority index 1 as specified in clause 16.2.4.3 of TS 38.213, or whether PUCCH transmission carrying SL HARQ is prioritized over PUCCH transmission carrying UCI of priority index 1 if they overlap in time as specified in clause 9.2.5.0 of TS 38.213.
sl-PriorityThreshold
Indicates the threshold used to determine whether NR sidelink transmission is prioritized over uplink transmission of priority index 0 as specified in clause 16.2.4.3 of TS 38.213, or whether PUCCH transmission carrying SL HARQ is prioritized over PUCCH transmission carrying UCI of priority index 0 if they overlap in time as specified in clause 9.2.5.0 of TS 38.213.
sl-RB-Number
Indicates the number of PRBs in the corresponding resource pool, which consists of contiguous PRBs only. The remaining RB cannot be used (See clause 8 of TS 38.214).
sl-StartRB-Subchannel
Indicates the lowest RB index of the subchannel with the lowest index in the resource pool with respect to the lowest RB index of a SL BWP.
sl-SubchannelSize
Indicates the minimum granularity in frequency domain for the sensing for PSSCH resource selection in the unit of PRB.
sl-SyncAllowed
Indicates the allowed synchronization reference(s) which is (are) allowed to use the configured resource pool.
sl-SyncConfigIndex
Indicates the synchronisation configuration that is associated with a reception pool, by means of an index to the corresponding entry SL-SyncConfigList of in SIB12 for NR sidelink communication.
sl-TDD-Configuration
Indicates the TDD configuration associated with the reception pool of the cell indicated by sl-SyncConfigIndex.
sl-ThreshS-RSSI-CBR
Indicates the S-RSSI threshold for determining the contribution of a sub-channel to the CBR measurement. Value 0 corresponds to -112 dBm, value 1 to -110 dBm, value n to (-112 + n*2) dBm, and so on.
sl-TimeResource
Indicates the bitmap of the resource pool, which is defined by repeating the bitmap with a periodicity during a SFN or DFN cycle.
sl-TimeWindowSizeCBR
Indicates the time window size for CBR measurement.
sl-TimeWindowSizeCR
Indicates the time window size for CR evaluation.
sl-TxPercentageList
Indicates the portion of candidate single-slot PSSCH resources over the total resources. Value p20 corresponds to 20%, and so on.
sl-X-Overhead
Accounts for overhead from CSI-RS, PT-RS. If the field is absent, the UE applies value n0 (see clause 5.1.3.2 of TS 38.214).
SL-SyncAllowed field descriptions
gnbEnb-Sync
If configured, the (pre-) configured resources can be used if the UE is directly or indirectly synchronized to eNB or gNB (i.e., synchronized to a reference UE which is directly synchronized to eNB or gNB).
gnss-Sync
If configured, the (pre-) configured resources can be used if the UE is directly or indirectly synchronized to GNSS (i.e., synchronized to a reference UE which is directly synchronized to GNSS).
ue-Sync
If configured, the (pre-) configured resources can be used if the UE is synchronized to a reference UE which is not synchronized to eNB, gNB and GNSS directly or indirectly.
SL-PSCCH-Config field descriptions
sl-FreqResourcePSCCH
Indicates the number of PRBs for PSCCH in a resource pool where it is not greater than the number PRBs of the subchannel.
sl-DMRS-ScrambleID
Indicates the initialization value for PSCCH DMRS scrambling.
sl-NumReservedBits
Indicates the number of reserved bits in first stage SCI.
sl-TimeResourcePSCCH
Indicates the number of symbols of PSCCH in a resource pool.
SL-PSSCH-Config field descriptions
sl-BetaOffsets2ndSCI
Indicates candidates of beta-offset values to determine the number of coded modulation symbols for second stage SCI. The value indicates the index of Table 9.3-2 of TS 38.213.
sl-PSSCH-DMRS-TimePatternList
Indicates the set of PSSCH DMRS time domain patterns in terms of PSSCH DMRS symbols in a slot that can be used in the resource pool.
sl-Scaling
Indicates a scaling factor to limit the number of resource elements assigned to the second stage SCI on PSSCH. Value f0p5 corresponds to 0.5, value f0p65 corresponds to 0.65, and so on.
SL-PSFCH-Config field descriptions
sl-MinTimeGapPSFCH
The minimum time gap between PSFCH and the associated PSSCH in the unit of slots.
sl-NumMuxCS-Pair
Indicates the number of cyclic shift pairs used for a PSFCH transmission that can be multiplexed in a PRB.
sl-PSFCH-CandidateResourceType
Indicates the number of PSFCH resources available for multiplexing HARQ-ACK information in a PSFCH transmission (see clause 16.3 of TS 38.213).
sl-PSFCH-HopID
Scrambling ID for sequence hopping of the PSFCH used in the resource pool.
sl-PSFCH-Period
Indicates the period of PSFCH resource in the unit of slots within this resource pool. If set to sl0, no resource for PSFCH, and HARQ feedback for all transmissions in the resource pool is disabled.
sl-PSFCH-RB-Set
Indicates the set of PRBs that are actually used for PSFCH transmission and reception. The leftmost bit of the bitmap refers to the lowest RB index in the resource pool, and so on. Value 0 in the bitmap indicates that the corresponding PRB is not used for PSFCH transmission and reception while value 1 indicates that the corresponding PRB is used for PSFCH transmission and reception (see TS 38.213).
SL-PTRS-Config field descriptions
sl-PTRS-FreqDensity
Presence and frequency density of SL PT-RS as a function of scheduled BW. If the field is not configured, the UE uses K_PT-RS = 2
sl-PTRS-TimeDensity
Presence and time density of SL PT-RS as a function of MCS. If the field is not configured, the UE uses L_PT-RS = 1
sl-PTRS-RE-Offset
Indicates the subcarrier offset for SL PT-RS . If the field is not configured, the UE applies the value offset00 (see clause 8.4.1.2.2 of TS 38.211).
SL-UE-SelectedConfigRP field descriptions
sl-CBR-PriorityTxConfigList
Indicates the mapping between PSSCH transmission parameter (such as MCS, PRB number, retransmission number, CR limit) sets by using the indexes of the configurations in sl-CBR-PSSCH-TxConfigList, CBR ranges by using the indexes to the entry of the CBR range configurations in sl-CBR-RangeConfigList, and priority ranges. It also indicates the default PSSCH transmission parameters to be used when CBR measurement results are not available, and MCS range for the MCS tables used in the resource pool. The field sl-CBR-PriorityTxConfigList-v1650 is present only when sl-CBR-PriorityTxConfigList-r16 is configured.
sl-MaxNumPerReserve
Indicates the maximum number of reserved PSCCH/PSSCH resources that can be indicated by an SCI.
sl-MultiReserveResource
Indicates if it is allowed to reserve a sidelink resource for an initial transmission of a TB by an SCI associated with a different TB, based on sensing and resource selection procedure.
sl-ResourceReservePeriodList
Set of possible resource reservation period allowed in the resource pool in the unit of ms. Up to 16 values can be configured per resource pool. The value ms0 is always configured.
sl-RS-ForSensing
Indicates whether DMRS of PSCCH or PSSCH is used for L1 RSRP measurement in the sensing operation.
sl-SensingWindow
Parameter that indicates the start of the sensing window.
sl-SelectionWindowList
Parameter that determines the end of the selection window in the resource selection for a TB with respect to priority indicated in SCI. Value n1 corresponds to 1*2μ, value n5 corresponds to 5*2μ, and so on, where μ = 0,1,2,3 refers to SCS 15,30,60,120 kHz respectively.
sl-Thres-RSRP-List
Indicates a list of 64 thresholds, and the threshold should be selected based on the priority in the decoded SCI and the priority in the SCI to be transmitted. A resource is excluded if it is indicated or reserved by a decoded SCI and PSSCH/PSCCH RSRP in the associated data resource is above a threshold.
SL-PowerControl field descriptions
sl-MaxTransPower
Indicates the maximum value of the UE's sidelink transmission power on this resource pool. The unit is dBm.
sl-Alpha-PSSCH-PSCCH
Indicates alpha value for sidelink pathloss based power control for PSCCH/PSSCH when sl-P0-PSSCH-PSCCH is configured. When the field is absent the UE applies the value 1.
sl-P0-PSSCH-PSCCH
Indicates P0 value for sidelink pathloss based power control for PSCCH/PSSCH. If not configured, sidelink pathloss based power control is disabled for PSCCH/PSSCH. When sl-P0-PSSCH-PSCCH-r17 is configured, the UE ignores sl-P0-PSSCH-PSCCH-r16.
dl-Alpha-PSSCH-PSCCH
Indicates alpha value for downlink pathloss based power control for PSCCH/PSSCH when dl-P0-PSSCH-PSCCH is configured. When the field is absent the UE applies the value 1.
dl-P0-PSSCH-PSCCH
Indicates P0 value for downlink pathloss based power control for PSCCH/PSSCH. If not configured, downlink pathloss based power control is disabled for PSCCH/PSSCH. When dl-P0-PSSCH-PSCCH-r17 is configured, the UE ignores dl-P0-PSSCH-PSCCH-r16. A Remote UE which is out of coverage, considers downlink pathloss based power control is disabled for PSCCH/PSSCH when dl-P0-PSSCH-PSCCH is configured.
dl-Alpha-PSFCH
Indicates alpha value for downlink pathloss based power control for PSFCH when dl-P0-PSFCH is configured. When the field is absent the UE applies the value 1.
dl-P0-PSFCH
Indicates P0 value for downlink pathloss based power control for PSFCH. If not configured, downlink pathloss based power control is disabled for PSFCH. When dl-P0-PSFCH-r17 is configured, the UE ignores dl-P0-PSFCH-r16. A Remote UE which is out of coverage, considers downlink pathloss based power control is disabled for PSFCH when dl-P0-PSFCH is configured.
SL-MinMaxMCS-Config field descriptions
sl-MaxMCS-PSSCH
Indicates the maximum MCS value when using the associated MCS table. If no MCS is configured, UE autonomously selects MCS from the full range of values.
sl-MinMCS-PSSCH
Indicates the minimum MCS value when using the associated MCS table. If no MCS is configured, UE autonomously selects MCS from the full range of values.
Up

 –  SL-RLC-BearerConfigp. 1134

The IE SL-RLC-BearerConfig specifies the SL RLC bearer configuration information for NR sidelink communication.
SL-RLC-BearerConfig information element
SL-RLC-BearerConfig field descriptions
sl-MAC-LogicalChannelConfig
The field is used to configure MAC SL logical channel parameters.
sl-RLC-BearerConfigIndex
The index of the RLC bearer configuration.
sl-RLC-Config
Determines the RLC mode (UM, AM) and provides corresponding parameters.
sl-ServedRadioBearer
Associates the sidelink RLC Bearer with a sidelink DRB. It indicates the index of SL radio bearer configuration, which is corresponding to the RLC bearer configuration.
Conditional Presence Explanation
LCH-SetupThe field is mandatory present upon creation of a new sidelink logical channel via the dedicated signalling and in case of sidelink DRB configuration via system information and pre-configuration; otherwise the field is optionally present, Need M.
LCH-SetupOnlyThis field is mandatory present upon creation of a new sidelink logical channel via the dedicated signalling and in case of sidelink DRB configuration via system information and pre-configuration. Otherwise, it is absent, Need M.
Up

 –  SL-RLC-BearerConfigIndexp. 1135

The IE SL-RLC-BearerConfigIndex is used to identify a SL RLC bearer configuration.
SL-RLC-BearerConfigIndex information element
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 –  SL-RLC-ChannelConfig |R17|p. 1135

The IE SL-RLC-ChannelConfig specifies the configuration information for PC5 Relay RLC channel between L2 U2N Relay UE and L2 U2N Remote UE.
SL-RLC-ChannelConfig information element
SL-RLC-ChannelConfig field descriptions
sl-MAC-LogicalChannelConfig
The field is used to configure MAC SL logical channel parameters.
sl-RLC-ChannelID
Indicates the PC5 Relay RLC channel in the link between L2 U2N Relay UE and L2 U2N Remote UE.
sl-RLC-Config
Determines the RLC mode (UM, AM) and provides corresponding parameters.
sl-PacketDelayBudget
Indicates the Packet Delay Budget for a PC5 Relay RLC channel. Upper bound value for the delay that a packet may experience expressed in unit of 0.5ms.
Up

 –  SL-RLC-ChannelID |R17|p. 1136

The IE SL-RLC-ChannelID is used to identify a PC5 Relay RLC channel in the link between L2 U2N Relay UE and L2 U2N Remote UE.
SL-RLC-ChannelID information element
Up

 –  SL-RLC-Configp. 1136

The IE SL-RLC-Config is used to specify the RLC configuration of sidelink DRB. RLC AM configuration is only applicable to the unicast NR sidelink communication.
SL-RLC-Config information element
SL-RLC-Config field descriptions
sl-MaxRetxThreshold
Parameter value of maxRetxThreshold for RLC AM for NR sidelink communications, see TS 38.322. Value t1 corresponds to 1 retransmission, value t2 corresponds to 2 retransmissions and so on.
sl-PollByte
Parameter value of pollByte for RLC AM for NR sidelink communications, see TS 38.322. Value kB25 corresponds to 25 kBytes, value kB50 corresponds to 50 kBytes and so on. infinity corresponds to an infinite amount of kBytes.
sl-PollPDU
Parameter value of pollPDU for RLC AM for NR sidelink communications, seeTS 38.322. Value p4 corresponds to 4 PDUs, value p8 corresponds to 8 PDUs and so on. infinity corresponds to an infinite number of PDUs.
sl-SN-FieldLength
This field indicates the RLC SN field size for NR sidelink communication, see TS 38.322. For groupcast and broadcast, only value size6 (6 bits) is configured for the field sl-SN-FieldLengthUM.
sl-T-PollRetransmit
Timer value of t-PollRetransmit for RLC AM for NR sidelink communications, see TS 38.322, in milliseconds. Value ms5 means 5 ms, value ms10 means 10 ms and so on.
Conditional Presence Explanation
SLRBSetupThe field is mandatory present in case of sidelink DRB setup via the dedicated signalling and in case of sidelink DRB configuration via system information and pre-configuration; otherwise the field is optionally present, need M.
Up

 –  SL-ScheduledConfigp. 1137

The IE SL-ScheduledConfig specifies sidelink communication configurations used for network scheduled NR sidelink communication.
SL-ScheduledConfig information element
SL-ScheduledConfig field descriptions
sl-CS-RNTI
Indicate the RNTI used to scramble CRC of DCI format 3_0, see TS 38.321.
sl-DCI-ToSL-Trans
Indicate the time gap between DCI reception and the first sidelink transmission scheduled by the DCI (see clause 8.1.2.1 of TS 38.214). Value 1 included in this field corresponds to 1 slot, value 2 corresponds to 2 slots and so on, based on the numerology of sidelink BWP.
sl-PSFCH-ToPUCCH
For dynamic grant and configured grant type 2, this field configures the values (in number of slot lengths) of the PSFCH to PUCCH gap. The field PSFCH-to-HARQ_feedback timing indicator in DCI format 3_0 selects one of the configured values of the PSFCH to PUCCH gap.
sl-RNTI
Indicate the C-RNTI used for monitoring the network scheduling to transmit NR sidelink communication (i.e. the mode 1).
MAC-MainConfigSL field descriptions
sl-BSR-Config
This field is to configure the sidelink buffer status report.
sl-PrioritizationThres
Indicates the SL priority threshold, which is used to determine whether SL TX is prioritized over UL TX, as specified in TS 38.321. Network does not configure the sl-PrioritizationThres and the ul-PrioritizationThres to the UE separately.
ul-PrioritizationThres
Indicates the UL priority threshold, which is used to determine whether SL TX is prioritized over UL TX, as specified in TS 38.321. Network does not configure the sl-PrioritizationThres and the ul-PrioritizationThres to the UE separately.
Up

 –  SL-SDAP-Configp. 1139

The IE SL-SDAP-Config is used to set the configurable SDAP parameters for a Sidelink DRB.
SL-SDAP-Config information element
SL-SDAP-Config field descriptions
sl-DefaultRB
Indicates whether or not this is the default sidelink DRB for this NR sidelink communication transmission destination. Among all configured instances of SL-SDAP-Config for this destination, this field shall be set to true in at most one instance of SL-SDAP-Config and to false in all other instances.
sl-MappedQoS-Flows
Indicates QoS flows to be mapped to the sidelink DRB. If the field is included in dedicated signalling, it is set to sl-MappedQoS-FlowsListDedicated; otherwise, it is set to sl-MappedQoS-FlowsList.
sl-MappedQoS-FlowsList
Indicates the list of QoS profiles of the NR sidelink communication transmission destination mapped to this sidelink DRB.
sl-MappedQoS-FlowsToAddList
Indicates the list of SL QoS flows ID of the NR sidelink communication transmission destination to be additionally mapped to this sidelink DRB.
sl-MappedQoS-FlowsToReleaseList
Indicates the list of SL QoS flows ID of the NR sidelink communication transmission destination to be released from existing QoS flow to SLRB mapping of this sidelink DRB.
sl-SDAP-Header
Indicates whether or not a SDAP header is present on this sidelink DRB. The field cannot be changed after a sidelink DRB is established. This field is set to present if the field sl-DefaultRB is set to true.
Up

 –  SL-ServingCellInfo |R17|p. 1140

The IE SL-ServingCellInfo is used to indicate the L2 U2N Relay UE's PCell/camping cell, which is considered as PCell/camping cell by the L2 U2N Remote UEs connecting with this L2 U2N Relay UE.
SL-ServingCellInfo information element
SL-ServingCellInfo field descriptions
sl-CarrierFreqNR
Indicates the DL frequency of the cell indicated by sl-PhysCellId.
sl-PhysCellId
Indicates the PCI of the PCell.
Up

 –  SL-SourceIdentity |R17|p. 1141

The IE SL-SourceIdentity is used to identify a source of a NR sidelink communication.
SL-SourceIdentity information element

 –  SL-SRAP-Config |R17|p. 1141

The IE SL-SRAP-Config is used to set the configurable SRAP parameters used by L2 U2N Relay UE and L2 U2N Remote UE as specified in TS 38.351.
SL-SRAP-Config information element
SL-SRAP-Config field descriptions
sl-LocalIdentity
Indicates the local UE ID of the L2 U2N Remote UE used in SRAP as specified in TS 38.351.
sl-MappingToAddModList
Indicates the list of mappings between the bearer identity of the L2 U2N Remote UE and the egress RLC channel as specified in TS 38.351 to be added or modified.
sl-MappingToReleaseList
Indicates the list of mappings between the bearer identity of the L2 U2N Remote UE and the egress RLC channel as specified in TS 38.351 to be released.
sl-RemoteUE-RB-Identity
Identity of the end-to-end Uu bearer identity of the L2 U2N Remote UE. The value 3 for the field srb-identity-r17 (i.e., for configuring SRB3) is not supported in this version of the specification.
sl-EgressRLC-ChannelUu
Indicates the egress RLC channel on Uu Hop for uplink transmissions at the L2 U2N Relay UE.
sl-EgressRLC-ChannelPC5
Indicates the egress RLC channel on PC5 Hop for downlink transmissions at the L2 U2N Relay UE and for uplink transmissions at the L2 U2N Remote UE.
Conditional Presence Explanation
L2RelayUEFor L2 U2N Relay UE, the field is optionally present, Need M. Otherwise, it is absent.
Up

 –  SL-SyncConfigp. 1142

The IE SL-SyncConfig specifies the configuration information concerning reception of synchronisation signals from neighbouring cells as well as concerning the transmission of synchronisation signals for sidelink communication.
SL-SyncConfig information element
SL-SyncConfig field descriptions
gnss-Sync
If configured, the synchronization configuration is used for SLSS transmission/reception when the UE is synchronized to GNSS. If not configured, the synchronization configuration is used for SLSS transmission/reception when the UE is synchronized to eNB/gNB.
sl-SyncRefMinHyst
Hysteresis when evaluating a SyncRef UE using absolute comparison.
sl-SyncRefDiffHyst
Hysteresis when evaluating a SyncRef UE using relative comparison.
sl-NumSSB-WithinPeriod
Indicates the number of sidelink SSB transmissions within one sidelink SSB period. The applicable values are related to the subcarrier spacing and frequency as follows:
FR1, SCS = 15 kHz: 1
FR1, SCS = 30 kHz: 1, 2
FR1, SCS = 60 kHz: 1, 2, 4
FR2, SCS = 60 kHz: 1, 2, 4, 8, 16, 32
FR2, SCS = 120 kHz: 1, 2, 4, 8, 16, 32, 64
sl-TimeOffsetSSB
Indicates the slot offset from the start of sidelink SSB period to the first sidelink SSB.
sl-TimeInterval
Indicates the slot interval between neighboring sidelink SSBs. This value is applicable when there are more than one sidelink SSBs within one sidelink SSB period.
sl-SSID
Indicates the ID of sidelink synchronization signal associated with different synchronization priorities.
syncInfoReserved
Reserved for future use.
syncTxThreshIC, syncTxThreshOoC
Indicates the thresholds used while in coverage and out of coverage, respectively. Value 0 corresponds to -infinity, value 1 to -115 dBm, value 2 to -110 dBm, and so on (i.e. in steps of 5 dBm) until value 12, which corresponds to -60 dBm, while value 13 corresponds to +infinity.
Up

 –  SL-Thres-RSRP-Listp. 1144

IE SL-Thres-RSRP-List indicates a threshold used for sensing based UE autonomous resource selection (see TS 38.215). A resource is excluded if it is indicated or reserved by a decoded SCI and PSSCH/PSCCH RSRP in the associated data resource is above the threshold defined by IE SL-Thres-RSRP-List. Value 0 corresponds to minus infinity dBm, value 1 corresponds to -128dBm, value 2 corresponds to -126dBm, value n corresponds to (-128 + (n-1)*2) dBm and so on, value 66 corresponds to infinity dBm.
SL-Thres-RSRP-List information element
Up

 –  SL-TxPowerp. 1144

The IE SL-TxPower is used to limit the UE's sidelink transmission power on a carrier frequency. The unit is dBm. Value minusinfinity corresponds to -infinity.
SL-TxPower information element
Up

 –  SL-TypeTxSyncp. 1144

The IE SL-TypeTxSync indicates the synchronization reference type.
SL-TypeTxSync information element

 –  SL-UE-SelectedConfigp. 1145

IE SL-UE-SelectedConfig specifies sidelink communication configurations used for UE autonomous resource selection.
SL-UE-SelectedConfig information element
SL-UE-SelectedConfig field descriptions
sl-PrioritizationThres
Indicates the SL priority threshold, which is used to determine whether SL TX is prioritized over UL TX, as specified in TS 38.321. Network does not configure the sl-PrioritizationThres and the ul-PrioritizationThres to the UE separately.
sl-ProbResourceKeep
Indicates the probability with which the UE keeps the current resource when the resource reselection counter reaches zero for sensing based UE autonomous resource selection (see TS 38.321).
sl-PSSCH-TxConfigList
Indicates PSSCH TX parameters such as MCS, sub-channel number, retransmission number, associated to different UE absolute speeds and different synchronization reference types for UE autonomous resource selection.
sl-ReselectAfter
Indicates the number of consecutive skipped transmissions before triggering resource reselection for sidelink communication (see TS 38.321).
ul-PrioritizationThres
Indicates the UL priority threshold, which is used to determine whether SL TX is prioritized over UL TX, as specified in TS 38.321. Network does not configure the sl-PrioritizationThres and the ul-PrioritizationThres to the UE separately.
Up

 –  SL-ZoneConfigp. 1145

The IE SL-ZoneConfig is used to configure the zone ID related parameters.
SL-ZoneConfig information element
SL-ZoneConfig field descriptions
sl-ZoneLength
Indicates the length of each geographic zone.
Up

 –  SLRB-Uu-ConfigIndexp. 1146

The IE SLRB-Uu-ConfigIndex is used to identify a sidelink DRB configuration from the network side.
SLRB-Uu-ConfigIndex information element

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