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Content for  TS 38.331  Word version:  18.0.0

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6.3.5  Sidelink information elementsp. 1310

 –  SL-BWP-Configp. 1310

The IE SL-BWP-Config is used to configure the UE specific NR sidelink communication/ discovery/ positioning on one particular sidelink bandwidth part.
SL-BWP-Config information element
SL-BWP-Config field descriptions
sl-AbsoluteFrequencySSB-NonAnchorList
Indicates the lowest S-SSB in a non-anchor RB set via each parameter in this list. Anchor RB set refers to the RB set where S-SSB indicated by sl-AbsoluteFrequencySSB-r16 locates.
sl-BWP-DiscPoolConfig
This field indicates the NR sidelink discovery dedicated resource pool configurations on the configured sidelink BWP. The total number of Rx/Tx resource pools configured for communication and discovery does not exceed the maximum number of Rx/Tx resource pool for NR sidelink communication (i.e. maxNrofRXPool-r16/maxNrofTXPool-r16).
sl-BWP-Generic
This field indicates the generic parameters on the configured sidelink BWP.
sl-BWP-Id
An identifier for this sidelink bandwidth part.
sl-BWP-PoolConfig
This field indicates the resource pool configurations on the configured sidelink BWP.
sl-BWP-PoolConfigA2X
This field indicates the resource pool configurations for A2X services on the configured sidelink BWP. This field does not include sl-TxPoolScheduling.
sl-BWP-PoolConfigPS
This field indicates the resource pool configurations for power saving on the configured sidelink BWP. This field does not include sl-TxPoolExceptional.
sl-BWP-PRS-PoolConfig
This field indicates the sidelink PRS dedicated resource pool configurations for SL-PRS on the configured sidelink BWP. This field does not include sl-PRS-TxPoolExceptional.
sl-CPE-StartingPositionS-SSB
Indicates the CPE starting position within the GP symbol before S-SSB transmission. The value is an index of the set of all candidate CPE starting positions specified in Table 5.3.1-3 of TS 38.211 for Ci=1 and the corresponding SCS of the SL BWP.
sl-CWS-ForPsschWithoutHarqAck
The latest CW_p is autonomously increased to the next higher allowed value for every priority class p of {1,2,3,4} if the same CW_p which is different from CW_(max,p) is consecutively used for general of N_init in SL Type 1 LBT for a number of times indicated by this parameter. This operation is restricted only to PSCCH/PSSCH transmission(s) with "HARQ feedback enabled/disabled indicator" in the 2nd stage SCI set to disabled, regardless of whether PSFCH resources being configured in a resource pool.
sl-GapOfAdditionalSSSB-Occasion
Indicate the gap between each R16/R17 NR SL S-SSB slot and its first corresponding additional candidate S-SSB occasion, and the gap between adjacent two additional candidate S-SSB occasions corresponding to a R16/R17 NR SL S-SSB slot.
sl-LBT-FailureRecoveryConfig
Configures parameters used for detection and cancellation of sidelink consistent LBT failures for operation with shared spectrum channel access, as specified in TS 38.321.
sl-NumOfAdditionalSSSBOccasion
Indicate the number of additional candidate S-SSB occasion(s) for each R16/R17 NR SL S-SSB slot.
sl-NumOfSSS-Brepetition
Indicate the number of S-SSB repetitions in frequency domain in one RB set, where first value corresponds to first RB set, second value corresponds to second RB set and so on. Legacy S-SSB are applicable in region with no OCB requirement, or with OCB exemption.
sl-SSSBPowerOffsetOfAnchorRBSet
Indicate the power offset for one S-SSB transmission on anchor RB set, where anchor RB set refers to the RB set where S-SSB indicated by sl-AbsoluteFrequencySSB-r16 locates. Value value1 corresponds to the power offset of 10lg(N), where N is the number of S-SSB repetitions within the anchor RB set, and value2 corresponds to the power offset of 10leg(W), where W is the maximum total number of S-SSB repetitions on RB sets within the SL-BWP.
sl-StartingSymbolFirst
Indicates the location of first starting symbol within a slot. Value sym0 corresponds to first symbol, value sym1 corresponds to the second symbol and so on. If the field is not configured, the UE shall use value sym0.
sl-StartingSymbolSecond
Indicates the location of second starting symbol within a slot. Value sym3 corresponds to fourth symbol, value sym4 corresponds to the fifth symbol and so on.
The number of symbols used for PSCCH/PSSCH transmission from second starting symbol is not smaller than 6. Within a slot, the second starting symbol is later than the first starting symbol. PSCCH/PSSCH transmission starting from first or second starting symbol shall have the same ending symbol within a slot.
sl-TransmissionStructureForPSCCHandPSSCH
Indicate a SL-BWP is (pre-)configured with contiguous RB-based or interlace RB-based PSCCH/PSSCH transmission. Legacy PSCCH/PSSCH are applicable in region with no OCB requirement, or with OCB exemption.
SL-BWP-Generic field descriptions
sl-LengthSymbols
This field indicates the number of symbols used for sidelink in a slot without S-SSB. A single value can be (pre)configured per sidelink bandwidth part.
sl-StartSymbol
This field indicates the starting symbol used for sidelink in a slot without S-SSB. A single value can be (pre)configured per sidelink bandwidth part.
sl-TxDirectCurrentLocation
The sidelink Tx/Rx Direct Current location for the carrier. Only values in the value range of this field between 0 and 3299, which indicate the subcarrier index within the carrier corresponding to the numerology of the corresponding sidelink BWP and value 3300, which indicates "Outside the carrier" and value 3301, which indicates "Undetermined position within the carrier" are used in this version of the specification.
Up

 –  SL-BWP-ConfigCommonp. 1313

The IE SL-BWP-ConfigCommon is used to configure the cell-specific configuration information on one particular sidelink bandwidth part.
SL-BWP-ConfigCommon information element
SL-BWP-ConfigCommon field descriptions
sl-AbsoluteFrequencySSB-NonAnchorList
Indicates the lowest S-SSB in a non-anchor RB set via each parameter in this list. Anchor RB set refers to the RB set where S-SSB indicated by sl-AbsoluteFrequencySSB-r16 locates.
sl-BWP-DiscPoolConfigCommon
This field indicates the NR sidelink discovery dedicated resource pool configurations on the configured sidelink BWP. The total number of Rx/Tx resource pools configured for communication and discovery does not exceed the maximum number of Rx/Tx resource pool for NR sidelink communication (i.e. maxNrofRXPool-r16/maxNrofTXPool-r16).
sl-BWP-Generic
This field indicates the generic parameters on the configured sidelink BWP.
sl-BWP-PoolConfigCommon
This field indicates the resource pool configurations on the configured sidelink BWP.
sl-BWP-PoolConfigCommonA2X
This field indicates the resource pool configurations for A2X services on the configured sidelink BWP.
sl-BWP-PoolConfigCommonPS
This field indicates the resource pool configurations for power saving on the configured sidelink BWP. This field does not include sl-TxPoolExceptional.
sl-BWP-PRS-PoolConfigCommon
This field indicates the resource pool configurations for SL-PRS on the configured sidelink BWP. This field does not include sl-PRS-TxPoolExceptional.
sl-CPE-StartingPositionS-SSB
Indicates the CPE starting position within the GP symbol before S-SSB transmission. The value is an index of the set of all candidate CPE starting positions specified in Table 5.3.1-3 of TS 38.211 for Ci=1 and the corresponding SCS of the SL BWP.
sl-CWS-ForPsschWithoutHarqAck
The latest CW_p is autonomously increased to the next higher allowed value for every priority class p of {1,2,3,4} if the same CW_p which is different from CW_(max,p) is consecutively used for general of N_init in SL Type 1 LBT for a number of times indicated by this parameter. This operation is restricted only to PSCCH/PSSCH transmission(s) with "HARQ feedback enabled/disabled indicator" in the 2nd stage SCI set to disabled, regardless of whether PSFCH resources being configured in a resource pool.
sl-GapOfAdditionalSSSB-Occasion
Indicate the gap between each R16/R17 NR SL S-SSB slot and its first corresponding additional candidate S-SSB occasion, and the gap between adjacent two additional candidate S-SSB occasions corresponding to a R16/R17 NR SL S-SSB slot.
sl-LBT-FailureRecoveryConfig
Configures parameters used for detection and cancellation of sidelink consistent LBT failures for operation with shared spectrum channel access, as specified in TS 38.321.
sl-NumOfAdditionalSSSBOccasion
Indicate the number of additional candidate S-SSB occasion(s) for each R16/R17 NR SL S-SSB slot.
sl-NumOfSSS-Brepetition
Indicate the number of S-SSB repetitions in frequency domain in one RB set, where first value corresponds to first RB set, second value corresponds to second RB set and so on. Legacy S-SSB are applicable in region with no OCB requirement, or with OCB exemption.
sl-PSFCHPowerOffset
Indicates the power offset between Tx power on one common PRB (P_common) and Tx power on one dedicated PRB (P_dedicated) when transmissionStructureForPSFCH is (pre-)configured as common interlace, i.e., P_common = P_dedicated - offset. UE expects the same (pre-)configured value of PSFCHPowerOffset across all resource pools. The unit is dB.
sl-SSSBPowerOffsetOfAnchorRBSet
Indicate the power offset for one S-SSB transmission on anchor RB set, where anchor RB set refers to the RB set where S-SSB indicated by sl-AbsoluteFrequencySSB-r16 locates. Value value1 corresponds to the power offset based on the number of S-SSB repetitions within the anchor RB set, and value2 corresponds to the power offset based on the maximum total number of S-SSB repetitions on RB sets within the SL-BWP.
sl-StartingSymbolFirst
Indicates the location of first starting symbol within a slot. Value sym0 corresponds to first symbol, value sym1 corresponds to the second symbol and so on. If the field is not configured, the UE shall use value sym0.
sl-StartingSymbolSecond
Indicates the location of second starting symbol within a slot. Value sym3 corresponds to fourth symbol, value sym4 corresponds to the fifth symbol and so on.
The number of symbols used for PSCCH/PSSCH transmission from second starting symbol is not smaller than 6. Within a slot, the second starting symbol is later than the first starting symbol. PSCCH/PSSCH transmission starting from first or second starting symbol shall have the same ending symbol within a slot.
sl-TransmissionStructureForPSCCHandPSSCH
Indicate a SL-BWP is (pre-)configured with contiguous RB-based or interlace RB-based PSCCH/PSSCH transmission. Legacy PSCCH/PSSCH are applicable in region with no OCB requirement, or with OCB exemption.
Up

 –  SL-BWP-DiscPoolConfigp. 1316

The IE SL-BWP-DiscPoolConfig is used to configure UE specific NR sidelink discovery dedicated resource pool.
SL-BWP-DiscPoolConfig information element
SL-BWP-DiscPoolConfig field descriptions
sl-DiscTxPoolScheduling
Indicates the resources by which the UE is allowed to transmit NR sidelink discover based on network scheduling on the configured BWP. For the PSFCH related configuration, if configured, will be used for PSFCH transmission/reception.
When this field is configured together with sl-TxPoolScheduling, the resource pool index (which is used in DCI Format 3_0 in clause 7.3.1.4.1 of TS 38.212) is defined as 0, 1, …, x-1 for the resource pools included in the sl-TxPoolScheduling, and x, x+1, …, x+y-1 for the resource pools included in sl-DiscTxPoolScheduling, where x is the number of the resource pools in sl-TxPoolScheduling, and y is the number of resource pools in sl-DiscTxPoolScheduling.
Conditional Presence Explanation
HOThis field is optionally present, need M, in an RRCReconfiguration message including reconfigurationWithSync; otherwise it is absent, need M.
Up

 –  SL-BWP-DiscPoolConfigCommonp. 1316

The IE SL-BWP-DiscPoolConfigCommon is used to configure the cell-specific NR sidelink discovery dedicated resource pool.
SL-BWP-DiscPoolConfigCommon information element
Up

 –  SL-BWP-PoolConfigp. 1317

The IE SL-BWP-PoolConfig is used to configure NR sidelink communication resource pool.
SL-BWP-PoolConfig information element
SL-BWP-PoolConfig field descriptions
sl-RxPool
Indicates the receiving resource pool on the configured BWP. For the PSFCH related configuration, if configured, will be used for PSFCH transmission/reception. If the field is included, it replaces any previous list, i.e. all the entries of the list are replaced and each of the SL-ResourcePool entries is considered to be newly created.
sl-TxPoolExceptional
Indicates the resources by which the UE is allowed to perform NR sidelink transmission in exceptional conditions on the configured BWP. For the PSFCH related configuration, if configured, will be used for PSFCH transmission/reception.
sl-TxPoolScheduling
Indicates the resources by which the UE is allowed to perform NR sidelink transmission based on network scheduling on the configured BWP. For the PSFCH related configuration, if configured, will be used for PSFCH transmission/reception.
sl-TxPoolSelectedNormal
Indicates the resources by which the UE is allowed to perform NR sidelink transmission by UE autonomous resource selection on the configured BWP. For the PSFCH related configuration, if configured, will be used for PSFCH transmission/reception.
Conditional Presence Explanation
HOThis field is optionally present, need M, in an RRCReconfiguration message including reconfigurationWithSync; otherwise it is absent, Need M.
Up

 –  SL-BWP-PoolConfigCommonp. 1318

The IE SL-BWP-PoolConfigCommon is used to configure the cell-specific NR sidelink communication resource pool.
SL-BWP-PoolConfigCommon information element
SL-BWP-PoolConfigCommon field descriptions
sl-TxPoolExceptional
Indicates the resources by which the UE is allowed to perform NR sidelink transmission in exceptional conditions on the configured BWP. For the PSFCH related configuration, if configured, will be used for PSFCH transmission/reception. This field is not present when SL-BWP-PoolConfigCommon is included in SidelinkPreconfigNR.
Up

 –  SL-BWP-PRS-PoolConfigp. 1319

The IE SL-BWP-PRS-PoolConfig is used to configure UE specific NR sidelink PRS dedicated resource pool.
SL-BWP-PRSPoolConfig information element
SL-BWP-PRSPoolConfig field descriptions
sl-PRS-TxPoolSelectedNormal
Indicates the resources by which the UE is allowed to perform SL-PRS transmission by UE autonomous resource selection on the configured BWP.
sl-PRS-TxPoolScheduling
Indicates the resources by which the UE is allowed to perform SL-PRS transmission based on network selection on the configured BWP.
sl-PRS-TxPoolExceptional
Indicates the resources by which the UE is allowed to perform SL-PRS transmission in exceptional conditions on the configured BWP.
Conditional Presence Explanation
HOThis field is optionally present, need M, in an RRCReconfiguration message including reconfigurationWithSync; otherwise it is absent, Need M.
Up

 –  SL-BWP-PRS-PoolConfigCommonp. 1320

The IE SL-BWP-PRSPoolConfigCommon is used to configure the cell-specific NR sidelink PRS dedicated resource pool.
SL-BWP-PRS-PoolConfigCommon information element
SL-BWP-PRS-PoolConfigCommon field descriptions
sl-PRS-TxPoolExceptional
Indicates the resources by which the UE is allowed to perform NR sidelink transmission in exceptional conditions on the configured BWP. For the PSFCH related configuration, if configured, will be used for PSFCH transmission/reception. This field is not present when SL-BWP-PRS-PoolConfigCommon is included in SL-PosPreconfigurationNR
Up

 –  SL-CBR-PriorityTxConfigListp. 1320

The IE 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 provided in sl-CBR-PSSCH-TxConfigList, CBR ranges by an index to the entry of the CBR range configuration 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.
SL-CBR-PriorityTxConfigList information element
SL-CBR-PriorityTxConfigList field descriptions
sl-CBR-ConfigIndex
Indicates the CBR ranges to be used by an index to the entry of the CBR range configuration in sl-CBR-RangeConfigList.
sl-DefaultTxConfigIndex
Indicates the PSSCH transmission parameters to be used by the UEs which do not have available CBR measurement results, by means of an index to the corresponding entry in sl-Tx-ConfigIndexList. Value 0 indicates the first entry in sl-Tx-ConfigIndexList. The field is ignored if the UE has available CBR measurement results.
sl-MCS-RangeList
Indicates the minimum MCS value and maximum MCS value for the associated MCS table(s). UE shall ignore the minimum MCS value and maximum MCS value used for table of 64QAM indicated in SL-CBR-PriorityTxConfigList-r16 if SL-CBR-PriorityTxConfigList-v1650 is present.
sl-PriorityThreshold
Indicates the upper bound of priority range which is associated with the configurations in sl-CBR-ConfigIndex and in sl-Tx-ConfigIndexList. The upper bounds of the priority ranges are configured in ascending order for consecutive entries of SL-PriorityTxConfigIndex in SL-CBR-PriorityTxConfigList. For the first entry of SL-PriorityTxConfigIndex, the lower bound of the priority range is 1.
SL-CBR-PriorityTxConfigList-v1650
If included, it includes the same number of entries, and listed in the same order, as in SL-CBR-PriorityTxConfigList-r16.
Up

 –  SL-CBR-CommonTxConfigListp. 1321

The IE SL-CBR-CommonTxConfigList indicates the list of PSSCH transmission parameters (such as MCS, sub-channel number, retransmission number, CR limit) in sl-CBR-PSSCH-TxConfigList, and the list of CBR ranges in sl-CBR-RangeConfigList, to configure congestion control to the UE for sidelink communication.
SL-CBR-CommonTxConfigList information element
SL-CBR-CommonTxConfigList field descriptions
sl-CBR-RangeConfigList
Each entry in sl-CBR-RangeConfigList is SL-CBR-LevelsConfig containing the list of CBR ranges. The values within each SL-CBR-LevelsConfig indicate the upper bound of the each CBR range (and implicitly indicate the lower bound of next CBR range) and are configured in ascending order. For the first CBR range of each SL-CBR-LevelsConfig, the lower bound of the CBR range is 0. Value 0 corresponds to 0, value 1 to 0.01, value 2 to 0.02, and so on.
sl-CR-Limit
Indicates the maximum limit on the occupancy ratio. Value 0 corresponds to 0, value 1 to 0.0001, value 2 to 0.0002, and so on (i.e. in steps of 0.0001) until value 10000, which corresponds to 1.
sl-CBR-PSSCH-TxConfigList
Indicates the list of available PSSCH transmission parameters (such as MCS, sub-channel number, retransmission number and CR limit) configurations.
sl-TxParameters
Indicates PSSCH transmission parameters.
Up

 –  SL-CBR-CommonTxDedicated-SL-PRS-RP-Listp. 1322

The IE SL-CBR-CommonTxConfigListDedicated-SL-PRS-RP indicates the list of SL PRS transmission parameters (such as Maximum SL PRS transmission power, Maximum Number of SL PRS (re-)transmissions, and CR limit) in sl-CBR-SL-PRS-TxConfigList, and the list of CBR ranges in sl-CBR-RangeConfigList-Dedicated-SL-PRS-RP, to configure congestion control to the UE for sidelink positioning.
SL-CBR-CommonTxDedicatedSL-PRS-RP-List information element
SL-CBR-CommonTxDedicatedSL-PRS-RP-List field descriptions
sl-CBR-RangeDedicatedSL-PRS-RP-List
Indicates the list of CBR ranges. Each entry of the list indicates in SL-CBR-LevelsConfig-Dedicated-SL-PRS-RP the upper bound of the CBR range for the respective entry. The upper bounds of the CBR ranges are configured in ascending order for consecutive entries of SL-CBR-LevelsConfig-Dedicated-SL-PRS-RP. For the first entry of SL-CBR-LevelsConfig-Dedicated-SL-PRS-RP the lower bound of the CBR range is 0. Value 0 corresponds to 0, value 1 to 0.01, value 2 to 0.02, and so on.
sl-CBR-SL-PRS-TxConfigList
Indicates the list of available SL PRS transmission parameters configurations.
sl-PRS-CR-Limit
Indicates the maximum limit on the occupancy ratio. Value 0 corresponds to 0, value 1 to 0.0001, value 2 to 0.0002, and so on (i.e. in steps of 0.0001) until value 10000, which corresponds to 1.
sl-PRS-MaxNum-Transmissions
Indicates maximum Number of SL PRS (re-)transmissions.
sl-PRS-MaxTx-power
Indicates maximum SL PRS transmission power. The unit is dBm.
Up

 –  SL-ConfigDedicatedNRp. 1323

The IE SL-ConfigDedicatedNR specifies the dedicated configuration information for NR sidelink communication/ discovery/ positioning.
SL-ConfigDedicatedNR information element
SL-ConfigDedicatedNR field descriptions
sl-LBT-SchedulingRequestId
Indicates the scheduling request configuration applicable for sidelink consistent LBT failure report, as specified in TS 38.321.
sl-MaxTransPowerCA
The maximum total transmit power to be used by the UE across all sidelink carriers.
sl-MeasConfigInfoToAddModList
This field indicates the RSRP measurement configurations for unicast destinations to add and/or modify.
sl-MeasConfigInfoToReleaseList
This field indicates the RSRP measurement configurations for unicast destinations to remove.
sl-PHY-MAC-RLC-Config
This field indicates the lower layer sidelink radio bearer configurations.
sl-RadioBearerToAddModList
This field indicates one or multiple sidelink radio bearer configurations to add and/or modify. This field is not configured to the PC5 connection used for L2 U2N relay operation.
sl-RadioBearerToReleaseList
This field indicates one or multiple sidelink radio bearer configurations to remove. This field is not configured to the PC5 connection used for L2 U2N relay operation.
SL-PHY-MAC-RLC-Config field descriptions
networkControlledSyncTx
This field indicates whether the UE shall transmit synchronisation information (i.e. become synchronisation source). Value on indicates the UE to transmit synchronisation information while value off indicates the UE to not transmit such information.
sl-DRX-Config
This field indicates the sidelink DRX configuration(s) for unicast, groupcast and/or broadcast communication, as specified in TS 38.321.
sl-MaxNumConsecutiveDTX
This field indicates the maximum number of consecutive HARQ DTX before triggering sidelink RLF. Value n1 corresponds to 1, value n2 corresponds to 2, and so on.
sl-FreqInfoToAddModList, sl-FreqInfoToAddModListExt
This field indicates the NR sidelink communication configuration on some carrier frequency (ies) to add and/or modify. If the network includes sl-FreqInfoToAddModListExt, it includes the same number of entries, and listed in the same order, as in sl-FreqInfoToAddModList.
sl-FreqInfoToReleaseList
This field indicates the NR sidelink communication configuration on some carrier frequency (ies) to remove. In this release, only one entry can be configured in the list.
sl-RLC-BearerToAddModList, sl-RLC-BearerToAddModListSizeExt
This field indicates one or multiple sidelink RLC bearer configurations to add and/or modify.
sl-RLC-BearerToReleaseList, sl-RLC-BearerToReleaseListSizeExt
This field indicates one or multiple sidelink RLC bearer configurations to remove.
sl-RLC-ChannelToAddModList
This field indicates one or multiple PC5 Relay RLC Channel configurations to add and/or modify. Each PC5 Relay RLC channel configuration provided by network to L2 U2N Relay UE is uniquely associated with one L2 U2N Remote UE.
sl-RLC-ChannelToReleaseList
This field indicates one or multiple PC5 Relay RLC Channel configurations to remove.
sl-ScheduledConfig
Indicates the configuration for UE to transmit NR sidelink communication based on network scheduling. This field is not configured simultaneously with sl-UE-SelectedConfig. This field is not configured to a L2 U2N Remote UE.
sl-UE-SelectedConfig
Indicates the configuration used for UE autonomous resource selection. This field is not configured simultaneously with sl-ScheduledConfig.
sl-CSI-Acquisition
Indicates whether CSI reporting is enabled in sidelink unicast. If the field is absent, sidelink CSI reporting is disabled.
sl-CSI-SchedulingRequestId
If present, it indicates the scheduling request configuration applicable for Sidelink CSI Reporting MAC CE and Sidelink DRX Command MAC CE, as specified in TS 38.321.
sl-SSB-PriorityNR
This field indicates the priority of NR sidelink SSB transmission and reception.
sl-SyncFreqList
Indicates a list of candidate carrier frequencies that can be used for the synchronisation of NR sidelink communication.
sl-SyncTxMultiFreq
Indicates that the UE transmits S-SSB on multiple carrier frequencies for NR sidelink communication. If this field is absent, the UE transmits S-SSB only on the synchronisation carrier frequency.
SL-SCCH-CarrierSetConfig field descriptions
sl-AllowedCarrierFreqSet1, sl-AllowedCarrierFreqSet2
Indicates the set of carrier frequencies applicable for the transmission of the MAC SDUs from the sidelink SRB logical channels whose associated destination is included in sl-destinationList. If present, network ensures allowedCarrierFreqSet1 and allowedCarrierFreqSet2 do not include the same carrier frequency. The value 1 corresponds to the frequency of first entry in sl-FreqInfoList broadcast in SIB12, the value 2 corresponds to the frequency of first entry in sl-FreqInfoListSizeExt broadcast in SIB12, the value 3 corresponds to the frequency of second entry in sl-FreqInfoListSizeExt broadcast in SIB12 and so on.
sl-DestinationList
This field indicates the list of destination identify that the allowedCarrierFreqSet1 and allowedCarrierFreqSet2 apply. Only destination identity for unicast link can be included in this field.
sl-SRB-Identity
This field indicates the list of sidelink SRB identities that the allowedCarrierFreqSet1 and allowedCarrierFreqSet2 apply.
Conditional Presence Explanation
L2RelayUEFor L2 U2N Relay UE, the field is optionally present, Need M. Otherwise, it is absent.
L2RemoteUEFor L2 U2N Remote UE, the field is optionally present, Need M. Otherwise, it is absent.
L2U2NThe field is optional present for L2 U2N Relay UE and L2 U2N Remote UE, need N. Otherwise, it is absent.
L2U2UThe field is optional present for L2 U2U Relay UE and L2 U2U Remote UE, need N. Otherwise, it is absent.
U2URelayUEFor U2U Relay UE, the field is optionally present, Need M. Otherwise, it is absent.
U2URemoteUEFor U2U Remote UE, the field is optionally present, Need M. Otherwise, it is absent.
Up

 –  SL-ConfiguredGrantConfigp. 1327

The IE SL-ConfiguredGrantConfig specifies the configured grant configuration information for NR sidelink communication.
SL-ConfiguredGrantConfig information element
SL-ConfiguredGrantConfig field descriptions
rrc-ConfiguredSidelinkGrant
Configuration for "sidelink configured grant" transmission with fully RRC-configured SL grant (Type1). If this field is not configured, the UE uses SL grant configured by DCI addressed to SL-CS-RNTI (Type2).
sl-ConfigIndexCG
This field indicates the ID to identify sidelink configured grant.
sl-CG-MaxTransNumList
This field indicates the maximum number of times that a TB can be transmitted using the resources provided by the sidelink configured grant. sl-Priority corresponds to the logical channel priority.
sl-FreqResourceCG-Type1
Indicates the frequency resource location of sidelink configured grant type 1. An index giving valid combinations of one or two starting sub-channel and length (jointly encoded) as resource indicator value (RIV), as defined in TS 38.214.
sl-HARQ-ProcID-Offset
Indicates the offset used in deriving the HARQ process ID for sidelink configured grant type 1 or sidelink configured grant type 2, see clause 5.8.3 of TS 38.321.
sl-N1PUCCH-AN
This field indicates the PUCCH resource for HARQ feedback for sidelink configured grant type 1. The actual PUCCH-Resource is configured in sl-PUCCH-Config and referred to by its ID.
sl-N1PUCCH-AN-Type2
This field indicates the PUCCH resource for HARQ feedback for PSCCH/PSSCH transmissions without a corresponding PDCCH on sidelink configured grant type 2. The actual PUCCH-Resource is configured in sl-PUCCH-Config and referred to by its ID.
sl-NrOfHARQ-Processes
This field indicates the number of HARQ processes configured for a specific sidelink configured grant. It applies for both type 1 and type 2.
sl-PeriodCG
This field indicates the period of sidelink configured grant in the unit of ms.
sl-PSFCH-ToPUCCH-CG-Type1
This field, for sidelink configured grant type 1, indicates slot offset between the PSFCH associated with the last PSSCH resource of each period and the PUCCH occasion used for reporting sidelink HARQ.
sl-ResourcePoolID
Indicates the resource pool in which the sidelink configured grant type 1 is applied.
sl-StartRBsetCG-Type1
Indicates starting RB set index of the initial PSSCH transmission of the sidelink configured grant Type 1 for interlace RB-based PSSCH transmission.
sl-StartSubchannelCG-Type1
This field indicates the starting sub-channel of sidelink configured grant type 1. An index giving valid sub-channel index.
sl-TimeOffsetCG-Type1
This field indicates the slot offset with respect to logical slot defined by sl-TimeReferenceSFN-Type1, as specified in TS 38.321.
sl-TimeReferenceSFN-Type1
Indicates SFN used for determination of the offset of a resource in time domain. If it is present, the UE uses the 1st logical slot of associated resource pool after the starting time of the closest SFN with the indicated number preceding the reception of the sidelink configured grant configuration type 1 as reference logical slot, see clause 5.8.3 of TS 38.321. If it is not present, the reference SFN is 0.
sl-TimeResourceCG-Type1
This field indicates the time resource location of sidelink configured grant type 1. An index giving valid combinations of up to two slot positions (jointly encoded) as time resource indicator value (TRIV), as defined in TS 38.212.
Up

 –  SL-ConfiguredGrantConfigDedicated-SL-PRS-RPp. 1330

The IE SL-ConfiguredGrantConfig-Dedicated-SL-PRS-RP specifies the configured grant configuration information for NR sidelink positioning in a dedicated SL-PRS resource pool.
SL-ConfiguredGrantConfigDedicated-SL-PRS-RP information element
SL-ConfiguredGrantConfig field descriptions
sl-ConfigIndexCG
This field indicates the ID to identify sidelink configured grant.
sl-PeriodCG
This field indicates the period of SL PRS configured grant in a dedicated resources in ms for either CG type 1 or CG type 2.
sl-ResourcePoolID
Indicates the resource pool in which the configured sidelink grant Type 1 is applied.
sl-TimeOffsetCG-Type1
This field indicates the slot offset with respect to logical slot defined by sl-TimeReferenceSFN-Type1-Dedicated-SL-PRS-RP, as specified in TS 38.321.
sl-TimeReferenceSFN-Type1
Indicates SFN used for determination of the offset of a resource in time domain. If it is present, the UE uses the 1st logical slot of associated resource pool after the starting time of the closest SFN with the indicated number preceding the reception of the sidelink configured grant configuration type 1 as reference logical slot, see clause 5.8.3 of TS 38.321. If it is not present, the reference SFN is 0.
sl-TimeResourceCG-Type1
This field indicates the time resource location of sidelink configured grant type 1. An index giving valid combinations of up to two slot positions (jointly encoded) as time resource indicator value (TRIV), as defined in TS 38.212.
sl-PRS-ResourceIndicationFirstType1
Indicates SL-PRS Resource ID for the first SL-PRS transmission.
sl-PRS-ResourceIndicationFutureType1
Indicates SL-PRS resource IDs for future SL PRS transmissions. An index giving valid combinations of up to two SL PRS resource IDs (jointly encoded) .
Up

 –  SL-DestinationIdentityp. 1331

The IE SL-DestinationIdentity is used to identify a destination of a NR sidelink communication.
SL-DestinationIdentity information element
Up

 –  SL-DRX-Configp. 1331

The IE SL-DRX-Config is used to configure DRX related parameters for NR sidelink communication/discovery. The SL DRX timers should be calculated in the unit of physical slot.
SL-DRX-Config information element
SL-DRX-Config field descriptions
sl-DRX-ConfigGC-BC
This field indicates the sidelink DRX configurations for groupcast and broadcast communication, as specified in TS 38.321.
sl-DRX-ConfigUC-ToReleaseList
This field indicates the sidelink DRX configurations for corresponding unicast destinations to remove.
sl-DRX-ConfigUC-ToAddModList
This field indicates the sidelink DRX configurations for corresponding unicast destinations to add and/or modify.
Conditional Presence Explanation
HOThis field is optionally present, need M, in an RRCReconfiguration message including reconfigurationWithSync; otherwise it is absent, Need M.
Up

 –  SL-DRX-ConfigGC-BCp. 1332

The IE SL-DRX-ConfigGC-BC is used to configure DRX related parameters for NR sidelink groupcast and broadcast communication, unicast/broadcast based communication of Direct Link Establishment Request (TS 24.587), and discovery message (TS 24.554).
SL-DRX-ConfigGC-BC information element
SL-DRX-ConfigGC-BC field descriptions
sl-DefaultDRX-GC-BC
Indicates the default sidelink DRX configuration for groupcast and broadcast communications, which is used for QoS profile(s) that cannot be mapped into DRX configuration(s) configured for dedicated QoS profile(s). This field can be applied for the broadcast based or unicast based communication of Direct Link Establishment Request as described in TS 24.587, ProSe Direct Link Establishment Request message and discovery message as described in TS 24.554.
sl-DRX-GC-BC-PerQoS-List
List of one or multiple sidelink DRX configurations for groupcast and broadcast communication, which are mapped from QoS profile(s).
sl-DRX-GC-BC-Cycle
Value in ms, ms10 corresponds to 10ms, ms20 corresponds to 20 ms, ms32 corresponds to 32 ms, and so on.
sl-DRX-GC-BC-MappedQoS-FlowsList
List of QoS profiles of the NR sidelink communication, which are mapped to a sidelink DRX configuration.
sl-DRX-GC-BC-OnDurationTimer
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.
sl-DRX-GC-HARQ-RTT-Timer1, sl-DRX-GC-HARQ-RTT-Timer2
Value in number of slot lengths of the sidelink BWP where the transport block was received. Value sl0 corresponds to 0 slots, sl1 corresponds to 1 slot, sl2 corresponds to 2 slots, and so on. sl-DRX-GC-HARQ-RTT-Timer1 is used for HARQ feedback enabled sidelink retransmission if SCI does not indicate retransmission resource(s). sl-DRX-GC-HARQ-RTT-Timer2 is used for HARQ feedback disabled sidelink retransmission in resource pool configured with PSFCH if SCI does not indicate retransmission resource(s).
sl-DRX-GC-Generic
Indicates a sidelink DRX configuration for groupcast communication, which is applicable to any QoS profile or any Destination Layer-2 ID.
sl-DRX-GC-InactivityTimer
Value in multiple integers of 1 ms, ms0 corresponds to 0, ms1 corresponds to 1 ms, ms2 corresponds to 2 ms, and so on. This field is only valid for groupcast communication.
sl-DRX-GC-RetransmissionTimer
Value in number of slot lengths of the sidelink BWP where the transport block was received. Value sl0 corresponds to 0 slots, sl1 corresponds to 1 slot, sl2 corresponds to 2 slots, and so on.
Up

 –  SL-DRX-ConfigUCp. 1333

The IE SL-DRX-ConfigUC is used to configure sidelink DRX related parameters for unicast communication.
SL-DRX-ConfigUC information element
SL-DRX-ConfigUC field descriptions
sl-drx-CycleStartOffset
Sidelink drx-Cycle in ms and sidelink drx-StartOffset in multiples of 1 ms.
sl-drx-HARQ-RTT-Timer1, sl-drx-HARQ-RTT-Timer2
Value in number of slot lengths of the BWP where the transport block was received. Value sl0 corresponds to 0 slots, sl1 corresponds to 1 slot, sl2 corresponds to 2 slots, and so on. sl-drx-HARQ-RTT-Timer1 is used for HARQ feedback enabled sidelink retransmission if SCI does not indicate retransmission resource(s). sl-drx-HARQ-RTT-Timer2 is used for HARQ feedback disabled sidelink retransmission in resource pool configured with PSFCH if SCI does not indicate retransmission resource(s).
sl-drx-InactivityTimer
Value in number of slot lengths of the BWP where the transport block was received, sl0 corresponds to 0, sl1 corresponds to 1 slot, sl2 corresponds to 2 slots, and so on.
sl-drx-onDurationTimer
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.
sl-drx-RetransmissionTimer
Value in number of slot lengths of the BWP where the transport block was received. Value sl0 corresponds to 0 slots, sl1 corresponds to 1 slot, sl2 corresponds to 2 slots, and so on.
sl-drx-SlotOffset
Value in 1/32 ms. Value 0 corresponds to 0 ms, value 1 corresponds to 1/32 ms, value 2 corresponds to 2/32 ms, and so on.
Up

 –  SL-DRX-ConfigUC-SemiStaticp. 1335

The IE SL-DRX-ConfigUC-SemiStatic is used to indicate the semi-static sidelink DRX related parameters for unicast communication.
SL-DRX-ConfigUC-SemiStatic information element
Up

 –  SL-FreqConfigp. 1336

The IE SL-FreqConfig specifies the dedicated configuration information on one particular carrier frequency for NR sidelink communication.
SL-FreqConfig information element
SL-FreqConfig field descriptions
absenceOfAnyOtherTechnology
Presence of this field indicates absence on a long term basis (e.g. by level of regulation) of any other technology sharing the carrier; absence of this field indicates the potential presence of any other technology sharing the carrier, as specified in clause 4.5 of TS 37.213. This parameter is not expected to be provided if the sidelink carrier is overlapped with uplink carrier.
sl-EnergyDetectionConfig
Indicates whether to use the maxEnergyDetectionThreshold or the energyDetectionThresholdOffset (see clause 4.5.5 of TS 37.213).
sl-EnergyDetectionThresholdOffset
Indicates the offset to the default maximum energy detection threshold value. Unit in dB. Value -13 corresponds to -13dB, value -12 corresponds to -12dB, and so on (i.e. in steps of 1dB) as specified in clause 4.5.5 of TS 37.213.
frequencyShift7p5khzSL
Enable the NR SL transmission with a 7.5 kHz shift to the LTE raster. If the field is absent, the frequency shift is disabled.
harq-ACKFeedbackRatioforCW-AdjustmentGC-Option2
Indicates the ratio threshold for contention window adjustment for SL groupcast option 2 as specified in clause 4.5.4 of TS 37.213. Unit is percentage.
sl-MaxEnergyDetectionThreshold
Indicates the absolute maximum energy detection threshold value. Unit in dBm. Value -85 corresponds to -85 dBm, value -84 corresponds to -84 dBm, and so on (i.e. in steps of 1dBm) as specified in clause 4.5.5 of TS 37.213.
sl-AbsoluteFrequencyPointA
Absolute frequency of the reference resource block (Common RB 0). Its lowest subcarrier is also known as Point A.
sl-AbsoluteFrequencySSB
Indicates the frequency location of sidelink SSB. The transmission bandwidth for sidelink SSB is within the bandwidth of this sidelink BWP.
sl-BWP-ToAddModList
This field indicates the list of sidelink BWP(s) on which the NR sidelink communication configuration is to be added or reconfigured. In this release, only one BWP is allowed to be configured for NR sidelink communication.
sl-BWP-ToReleaseList
This field indicates the list of sidelink BWP(s) on which the NR sidelink communication configuration is to be released.
sl-Freq-Id
This field indicates the identity of the dedicated configuration information on the carrier frequency for NR sidelink communication.
sl-SCS-SpecificCarrierList
A set of UE specific channel bandwidth and location configurations for different subcarrier spacings (numerologies). Defined in relation to Point A. The UE uses the configuration provided in this field only for the purpose of channel bandwidth and location determination. In this release, only one SCS-SpecificCarrier is allowed to be configured for NR sidelink communication.
sl-SyncTxDisabled
Indicates that the carrier, even though equipped with synchronisation resources, cannot be used as a synchronisation carrier frequency to transmit S-SSB.
sl-SyncPriority
This field indicates synchronization priority order, as specified in clause 5.8.6. All values in sl-SyncPriority are same across all carrier frequencies configured for UEs performing NR sidelink communication on multiple carrier frequencies.
ue-ToUE-COT-SharingED-Threshold
Indicates the energy detection threshold that is to be used by a UE to initiate a channel occupancy to be shared to other UE(s), and another UE that shares the initiated channel occupancy shall use this configured parameter for accessing the channel(s) as specified in clause 4.5.5 of TS 37.213 for sidelink channel access. Unit in dBm. Value -85 corresponds to -85 dBm, value -84 corresponds to -84 dBm, and so on (i.e. in steps of 1dBm).
valueN
Indicate the NR SL transmission with a valueN *5kHz shift to the LTE raster. (see clause 5.4E.2 of TS 38.101-1).
Conditional Presence Explanation
V2X-SL-SharedThis field is mandatory present if the carrier frequency configured for NR sidelink communication is shared by V2X sidelink communication. It is absent, Need R, otherwise.
Up

 –  SL-FreqConfigCommonp. 1339

The IE SL-FreqConfigCommon specifies the cell-specific configuration information on one particular carrier frequency for NR sidelink communication.
SL-FreqConfigCommon information element
SL-FreqConfigCommon field descriptions
absenceOfAnyOtherTechnology
Presence of this field indicates absence on a long term basis (e.g. by level of regulation) of any other technology sharing the carrier; absence of this field indicates the potential presence of any other technology sharing the carrier, as specified in clause 4.5.5 of TS 37.213. This parameter is not expected to be provided if the sidelink carrier is overlapped with uplink carrier.
sl-EnergyDetectionConfig
Indicates whether to use the maxEnergyDetectionThreshold or the energyDetectionThresholdOffset (see clause 4.5.5 of TS 37.213).
sl-EnergyDetectionThresholdOffset
Indicates the offset to the default maximum energy detection threshold value. Unit in dB. Value -13 corresponds to -13dB, value -12 corresponds to -12dB, and so on (i.e. in steps of 1dB) as specified in clause 4.5.5 of TS 37.213.
frequencyShift7p5khzSL
Enable the NR SL transmission with a 7.5 kHz shift to the LTE raster. If the field is absent, the frequency shift is disabled.
harq-ACKFeedbackRatioforContentionWindowAdjustmentGC-Option2
Indicates the ratio threshold for contention window adjustment for SL groupcast option 2 as specified in clause 4.5.4 of TS 37.213. Unit is percentage.
sl-MaxEnergyDetectionThreshold
Indicates the absolute maximum energy detection threshold value. Unit in dBm. Value -85 corresponds to -85 dBm, value -84 corresponds to -84 dBm, and so on (i.e. in steps of 1dBm) as specified in clause 4.5.5 of TS 37.213.
sl-AbsoluteFrequencyPointA
Absolute frequency of the reference resource block (Common RB 0). Its lowest subcarrier is also known as Point A.
sl-AbsoluteFrequencySSB
Indicates the frequency location of sidelink SSB. The transmission bandwidth for sidelink SSB is within the bandwidth of this sidelink BWP.
sl-BWP-List
This field indicates the list of sidelink BWP(s) on which the NR sidelink communication configuration. In this release, only one BWP is allowed to be configured for NR sidelink communication.
sl-NbAsSync
This field indicates whether the network can be selected as synchronization reference directly/indirectly only, if sl-SyncPriority is set to gnss. If this field is set to TRUE, the network is enabled to be selected as synchronization reference directly/indirectly. The field is only present in SidelinkPreconfigNR. Otherwise it is absent. All values in sl-NbAsSync are same across all carrier frequencies configured for UEs performing NR sidelink communication on multiple carrier frequencies.
sl-SyncTxDisabled
Indicates that the carrier, even though equipped with synchronisation resources, cannot be used as a synchronisation carrier frequency to transmit S-SSB.
sl-SyncPriority
This field indicates synchronization priority order, as specified in clause 5.8.6. All values in sl-SyncPriority are same across all carrier frequencies configured for UEs performing NR sidelink communication on multiple carrier frequencies.
sl-SyncConfigList
This field indicates the configuration by which the UE is allowed to receive and transmit synchronisation information for NR sidelink communication. Network configures sl-SyncConfig including txParameters when configuring UEs to transmit synchronisation information. If this field is configured in SL-PreconfigurationNR-r16, only one entry is configured in sl-SyncConfigList.
ue-toUE-COT-SharingED-Threshold
Indicates the energy detection threshold that is to be used by a UE to initiate a channel occupancy to be shared to other UE(s), and another UE that shares the initiated channel occupancy shall use this configured parameter for accessing the channel(s) as specified in clause 4.5.5 of TS 37.213 for sidelink channel access. Unit in dBm. Value -85 corresponds to -85 dBm, value -84 corresponds to -84 dBm, and so on (i.e. in steps of 1dBm).
valueN
Indicate the NR SL transmission with a valueN *5kHz shift to the LTE raster (see clause 5.4E.2 of TS 38.101-1).
Conditional Presence Explanation
V2X-SL-SharedThis field is mandatory present if the carrier frequency configured for NR sidelink communication is shared by V2X sidelink communication. It is absent, Need R, otherwise.
Up

 –  SL-FreqSelectionConfigp. 1341

The IE SL-FreqSelectionConfig specifies the configuration information for carrier selection for NR sidelink transmission using UE autonomous resource selection.
SL-FreqSelectionConfig information element
SL-FreqSelectionConfig field descriptions
sl-priorityList
Indicates the list of sidelink logical channel priority which is associated with the configurations in sl-threshCBR-FreqReselection and in sl-threshCBR-FreqKeeping.
sl-threshCBR-FreqReselection
Indicates the CBR threshold based on which UE determines whether the carrier frequency can be (re)selected for the transmission of NR sidelink. See TS 38.321.
sl-threshCBR-FreqKeeping
Indicates the CBR threshold based on which UE determines whether the UE can keep using the carrier which was selected for the transmission of NR sidelink. See TS 38.321.
Up

 –  SL-IndirectPathAddChangep. 1341

The IE SL-IndirectPathAddChange specifies the configuration information of SL indirect path for SL indirect path addition/change in MP.
SL-IndirectPathAddChange information element
SL-IndirectPathAddChange field descriptions
sl-IndirectPathRelayUEIdentity
Indicates the L2 source ID of the L2 U2N Relay UE of SL indirect path.
sl-IndirectPathCellIdentity
Identifies the serving cell of the indicated L2 U2N Relay UE.
t421
Indicates the timer value of T421 to be used during indirect path addition or change.
Up

 –  SL-InterUE-CoordinationConfigp. 1342

The IE SL-InterUE-CoordinationConfig is used to configure the sidelink inter-UE coordination (between a UE, UE-A, and a peer UE, UE-B) parameters.
SL-InterUE-CoordinationConfig information element
SL-InterUE-CoordinationScheme1 field descriptions
sl-Condition1-A-2
Indicates disabling the use of condition of excluding from preferred resource set resource(s) in slot(s) where UE-A, when it is intended receiver of UE-B, does not expect to perform SL reception from UE-B due to half duplex operation.
sl-ContainerCoordInfo
Indicates whether a SCI format 2-C can be used as the container of inter-UE coordination information transmission from UE-A to UE-B in Scheme 1 in addition to using MAC CE.
sl-ContainerRequest
Indicates whether a SCI format 2-C can be used as the container of an explicit request for inter-UE coordination information transmission from UE-B to UE-A in Scheme 1 in addition to using MAC CE.
sl-DetermineResourceType
Indicates how to determine the resource set type to be provided by inter-UE coordination information transmission. Value "uea" means the resource set type is determined by UE-A's implementation. Value "ueb" means the resource set type is determined by UE-B's request.
sl-IUC-Condition
Indicates whether inter-UE coordination information triggered by a condition is enabled or not other than explicit request reception.
sl-IUC-Explicit
Indicates whether inter-UE coordination information triggered by an explicit request is enabled or not.
sl-MaxSlotOffsetTRIV
Indicates the maximum value of logical slot offset with respect to a reference slot that is used for representing the first resource location of each TRIV to indicate the set of resources in Scheme 1 as specified in TS 38.214.
sl-NumSubCH-PreferredResousrceSet
Indicates the number of sub-channels used for determining the preferred resource set in Scheme 1 when the inter-UE coordination information transmission is triggered by a condition other than explicit request reception.
sl-PriorityCoordInfoCondition
Parameter used to determine the priority values for the purpose defined in TS 38.213 and TS 38.214 including, the priority value for sensing and candidate resource (re-)selection for transmitting the TB carrying the IUC MAC CE and the priority value in the SCI Format 1-A corresponding to the TB carrying the IUC MAC CE, triggered by a condition other than explicit request reception in Scheme 1. The priority value of IUC MAC CE used in LCP procedure (see TS 38.321) is fixed as "1".
sl-PriorityCoordInfoExplicit
Parameter used to determine the priority values for the purpose defined in TS 38.213 and TS 38.214 including, the priority value for sensing and candidate resource (re-)selection for transmitting the TB carrying the IUC MAC CE and the priority value in the SCI Format 1-A corresponding to the TB carrying the IUC MAC CE, triggered by an explicit request in Scheme 1. The priority value of IUC MAC CE used in LCP procedure (see TS 38.321) is fixed as "1".
sl-PriorityPreferredResourceSet
Indicates the priority value used for determining the preferred resource set in Scheme 1 when the inter-UE coordination information transmission is triggered by a condition other than explicit request reception.
sl-PriorityRequest
Parameter used to determine the priority values for the purpose defined in TS 38.213 and TS 38.214 including, the priority value for sensing and candidate resource (re-)selection for transmitting the TB carrying the IUC request MAC CE and the priority value in the SCI Format 1-A corresponding to the TB carrying the IUC request MAC CE, in an explicit request for inter-UE coordination information in Scheme 1. The priority value of IUC request MAC CE used in LCP procedure (see TS 38.321) is fixed as "1".
sl-ReservedPeriodPreferredResourceSet
Indicates the resource reservation interval used for determining the preferred resource set in Scheme 1 when the inter-UE coordination information transmission is triggered by a condition, by means of an index to the corresponding entry of sl-ResourceReservePeriodList-r16.
sl-TriggerConditionCoordInfo
Indicates the additional alternative trigger condition of inter-UE coordination information triggered by a condition rather than request reception in Scheme-1 from UE-A to UE-B. Value 0 means inter-UE coordination information is triggered by UE-A's implementation. Value 1 means inter-UE coordination information can be triggered only when UE-A has data to be transmitted together with the inter-UE coordination information to UE-B.
sl-TriggerConditionRequest
Indicates the trigger condition of an explicit request from UE-B to UE-A. Value 0 means the explicit request is triggered by UE-B's implementation. Value 1 means the explicit request can be triggered only when UE-B has data or SL-PRS to be transmitted to UE-A.
sl-ThresholdRSRP-Condition1-B-1-Option1List
Indicates the RSRP threshold used to determine reserved resource(s) of other UE(s) whose RSRP measurement is larger than it as the set of resource(s) non-preferred for UE-B's transmission for Condition 1-B-1 of Scheme 1, as specified in TS 38.214. 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-ThresholdRSRP-Condition1-B-1-Option2List
Indicates the RSRP threshold used to determine reserved resource(s) of other UE(s) whose RSRP measurement is smaller than it as the set of resource(s) non-preferred for UE-B's transmission for Condition 1-B-1 of Scheme 1, as specified in TS 38.214. 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-InterUE-CoordinationScheme2 field descriptions
sl-DeltaRSRP-Thresh
Indicates the RSRP threshold delta value corresponding to deltaRSRPThresh specified in clause 16.3.0 of TS 38.213 and used to determine reserved resource(s) of other UE(s). Value in dB. Only even values (step size 2) allowed.
sl-IndicationUE-B
Indicates whether to enable or disable the usage of 1 LSB of reserved bits of a SCI format 1-A to indicate of whether UE scheduling a conflict TB can be UE-B or not.
sl-IUC-Scheme2
Indicates whether inter-UE coordination Scheme 2 is enabled or not.
sl-OptionForCondition2-A-1
Indicates the RSRP threshold used to consider additional criteria for condition 2-A-1. Value 0 corresponds to using the RSRP threshold according to the priorities included in the SCI, UE uses thresholds sl-Thres-RSRP-List, in its resource pool configuration sl-UE-SelectedConfigRP, corresponding to ThresPSSCH-RSRP-List specified in clause 16.3.0 of TS 38.213. Value 1 corresponds to using a (pre)configured RSRP threshold delta value sl-DeltaRSRP-Thresh, corresponding to deltaRSRPThresh specified in clause 16.3.0 of TS 38.213.
sl-PSFCH-Occasion
Indicates the reference slot from which a PSFCH occasion for inter-UE coordination information transmission is derived. Value 0 corresponds to the slot where UE-B's SCI is transmitted and value 1 corresponds to the slot where expected/potential resource conflict occurs on PSSCH resource indicated by UE-B's SCI.
sl-RB-SetPSFCH
Indicates the set of PRBs that are actually used for inter-UE coordination information transmission and reception in Scheme 2. The leftmost bit of the bitmap refers to the lowest RB index in the resource pool, and so on.
sl-SlotLevelResourceExclusion
Indicates that physical layer of UE-B reports resources in a slot including the next reserved resource indicated by the corresponding UE-B's SCI to higher layer.
sl-TypeUE-A
Indicates that a non-destination UE of a TB transmitted by UE-B can be UE-A which sends inter-UE coordination information to UE-B, when UE-A is a destination UE of another TB conflicting with the TB transmitted by UE-B.
Up

 –  SL-LBT-FailureRecoveryConfigp. 1346

The IE SL-LBT-FailureRecoveryConfig-r18 is used to configure the parameters used for detection and cancellation of sidelink consistent LBT failures for operation with shared spectrum channel access, as specified in TS 38.321.
SL-LBT-FailureRecoveryConfig information element
SL-LBT-FailureRecoveryConfig field descriptions
sl-lbt-FailureDetectionTimer
Timer for consistent sidelink LBT failure detection (see TS 38.321). Value ms10 corresponds to 10 ms, value ms20 corresponds to 20 ms, and so on.
sl-lbt-FailureInstanceMaxCount
This field determines after how many LBT failure indications received from the physical layer the UE triggers sidelink LBT failure recovery (see TS 38.321). Value n4 corresponds to 4, value n8 corresponds to 8, and so on.
sl-lbt-RecoveryTimer
Timer for consistent sidelink LBT failure cancellation (see TS 38.321). Value ms10 corresponds to 10 ms, value ms20 corresponds to 20 ms, and so on.
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