6.3.8 Sidelink information elements

36.3313GPPEvolved Universal Terrestrial Radio Access (E-UTRA)Protocol specificationRadio Resource Control (RRC)Release 15TS

SL-AnchorCarrierFreqList-V2X

The IE SL-AnchorCarrierFreqList-V2X specifies the SL V2X anchor frequencies i.e. frequencies that include inter-carrier resource configuration for V2X sidelink communication.

SL-AnchorCarrierFreqList-V2X information element

— ASN1START

SL-AnchorCarrierFreqList-V2X-r14 ::= SEQUENCE (SIZE (1..maxFreqV2X-r14)) OF ARFCN-ValueEUTRA-r9

— ASN1STOP

SL-CBR-CommonTxConfigList

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 cbr-RangeCommonConfigList, to configure congestion control to the UE for V2X sidelink communication.

SL-CBR-CommonTxConfigList information element

— ASN1START

SL-CBR-CommonTxConfigList-r14 ::= SEQUENCE {

cbr-RangeCommonConfigList-r14 SEQUENCE (SIZE (1..maxSL-V2X-CBRConfig-r14)) OF SL-CBR-Levels-Config-r14,

sl-CBR-PSSCH-TxConfigList-r14 SEQUENCE (SIZE (1..maxSL-V2X-TxConfig-r14)) OF SL-CBR-PSSCH-TxConfig-r14

}

SL-CBR-Levels-Config-r14 ::= SEQUENCE (SIZE (1..maxCBR-Level-r14)) OF SL-CBR-r14

SL-CBR-PSSCH-TxConfig-r14 ::= SEQUENCE {

cr-Limit-r14 INTEGER(0..10000),

tx-Parameters-r14 SL-PSSCH-TxParameters-r14

}

SL-CBR-r14 ::= INTEGER(0..100)

— ASN1STOP

SL-CBR-CommonTxConfigList field descriptions

cbr-RangeCommonConfigList

Indicates the list of CBR ranges. Each entry of the list indicates in SL-CBR-Levels-Config 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 cbr-RangeCommonConfigList. For the first entry of cbr-RangeCommonConfigList the lower bound of the CBR range is 0.

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-CBR

Value 0 corresponds to 0, value 1 to 0.01, value 2 to 0.02, and so on.

tx-Parameters

Indicates PSSCH transmission parameters.

SL-CBR-PPPP-TxConfigList

The IE SL-CBR-PPPP-TxConfigList 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 cbr-RangeCommonConfigList, and PPPP ranges. It also indicates the default PSSCH transmission parameters to be used when CBR measurement results are not available.

SL-CBR-PPPP-TxConfigList information element

— ASN1START

SL-CBR-PPPP-TxConfigList-r14 ::= SEQUENCE (SIZE (1..8)) OF SL-PPPP-TxConfigIndex-r14

SL-PPPP-TxConfigIndex-r14 ::= SEQUENCE {

priorityThreshold-r14 SL-Priority-r13,

defaultTxConfigIndex-r14 INTEGER(0..maxCBR-Level-1-r14),

cbr-ConfigIndex-r14 INTEGER(0..maxSL-V2X-CBRConfig-1-r14),

tx-ConfigIndexList-r14 SEQUENCE (SIZE (1..maxCBR-Level-r14)) OF Tx-ConfigIndex-r14

}

Tx-ConfigIndex-r14 ::= INTEGER(0..maxSL-V2X-TxConfig-1-r14)

SL-CBR-PPPP-TxConfigList-v1530 ::= SEQUENCE (SIZE (1..8)) OF SL-PPPP-TxConfigIndex-v1530

SL-PPPP-TxConfigIndex-v1530 ::= SEQUENCE {

mcs-PSSCH-RangeList-r15 SEQUENCE (SIZE (1..maxCBR-Level-r14)) OF MCS-PSSCH-Range-r15 OPTIONAL –Need OR

}

MCS-PSSCH-Range-r15 ::= SEQUENCE{

minMCS-PSSCH-r15 INTEGER (0..31),

maxMCS-PSSCH-r15 INTEGER (0..31)

}

SL-CBR-PPPP-TxConfigList-r15 ::= SEQUENCE (SIZE (1..8)) OF SL-PPPP-TxConfigIndex-r15

SL-PPPP-TxConfigIndex-r15 ::= SEQUENCE {

priorityThreshold-r15 SL-Priority-r13,

defaultTxConfigIndex-r15 INTEGER(0..maxCBR-Level-1-r14),

cbr-ConfigIndex-r15 INTEGER(0..maxSL-V2X-CBRConfig-1-r14),

tx-ConfigIndexList-r15 SEQUENCE (SIZE (1..maxCBR-Level-r14)) OF Tx-ConfigIndex-r14,

mcs-PSSCH-RangeList-r15 SEQUENCE (SIZE (1..maxCBR-Level-r14)) OF MCS-PSSCH-Range-r15

}

— ASN1STOP

SL-CBR-PPPP-TxConfigList field descriptions

cbr-ConfigIndex

Indicates the CBR ranges to be used by an index to the entry of the CBR range configuration in cbr-RangeCommonConfigList.

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 tx-ConfigIndexList. Value 0 indicates the first entry in tx-ConfigIndexList. The field is ignored if the UE has available CBR measurement results.

mcs-PSSCH-RangeList

If included, this field applies to the PPPP(s) indicated by the priorityThreshold and each entry in this field sequentially corresponds to each CBR range indicated by cbr-ConfigIndex.

minMCS-PSSCH, maxMCS-PSSCH

Indicates the minimum and maximum MCS values which correspond to both the MCS table in Table 8.6.1-1 and Table 14.1.1-2 in TS 36.213 [23] used for transmission on PSSCH.

priorityThreshold

Indicates the upper bound of PPPP range which is associated with the configurations in cbr-ConfigIndex and in tx-ConfigIndexList. The upper bounds of the PPPP ranges are configured in ascending order for consecutive entries of SL-PPPP-TxConfigIndex in SL-CBR-PPPP-TxConfigList. For the first entry of SL-PPPP-TxConfigIndex, the lower bound of the PPPP range is 1.

SL-CBR-PPPP-TxConfigList-v1530

If included, E-UTRAN shall include the same number of entries, and listed in the same order, as in SL-CBR-PPPP-TxConfigList-r14.

tx-ConfigIndexList

Indicates the list of the PSSCH transmission parameters and CR limit by the indexes to the entries of the configurations in sl-CBR-PSSCH-TxConfigList. Each index in tx-ConfigIndexList sequentially maps to each CBR range indicated by cbr-ConfigIndex.

SL-CommConfig

The IE SL-CommConfig specifies the dedicated configuration information for sidelink communication. In particular it concerns the transmission resource configuration for sidelink communication on the primary frequency.

SL-CommConfig information element

— ASN1START

SL-CommConfig-r12 ::= SEQUENCE {

commTxResources-r12 CHOICE {

release NULL,

setup CHOICE {

scheduled-r12 SEQUENCE {

sl-RNTI-r12 C-RNTI,

mac-MainConfig-r12 MAC-MainConfigSL-r12,

sc-CommTxConfig-r12 SL-CommResourcePool-r12,

mcs-r12 INTEGER (0..28) OPTIONAL — Need OP

},

ue-Selected-r12 SEQUENCE {

— Pool for normal usage

commTxPoolNormalDedicated-r12 SEQUENCE {

poolToReleaseList-r12 SL-TxPoolToReleaseList-r12 OPTIONAL, — Need ON

poolToAddModList-r12 SL-CommTxPoolToAddModList-r12 OPTIONAL — Need ON

}

}

}

} OPTIONAL, — Need ON

…,

[[ commTxResources-v1310 CHOICE {

release NULL,

setup CHOICE {

scheduled-v1310 SEQUENCE {

logicalChGroupInfoList-r13 LogicalChGroupInfoList-r13,

multipleTx-r13 BOOLEAN

},

ue-Selected-v1310 SEQUENCE {

commTxPoolNormalDedicatedExt-r13 SEQUENCE {

poolToReleaseListExt-r13 SL-TxPoolToReleaseListExt-r13 OPTIONAL, — Need ON

poolToAddModListExt-r13 SL-CommTxPoolToAddModListExt-r13 OPTIONAL — Need ON

}

}

}

} OPTIONAL, — Need ON

commTxAllowRelayDedicated-r13 BOOLEAN OPTIONAL — Need ON

]]

}

LogicalChGroupInfoList-r13 ::= SEQUENCE (SIZE (1..maxLCG-r13)) OF SL-PriorityList-r13

SL-CommTxPoolToAddModList-r12 ::= SEQUENCE (SIZE (1..maxSL-TxPool-r12)) OF SL-CommTxPoolToAddMod-r12

SL-CommTxPoolToAddModListExt-r13 ::= SEQUENCE (SIZE (1..maxSL-TxPool-v1310)) OF SL-CommTxPoolToAddModExt-r13

SL-CommTxPoolToAddMod-r12 ::= SEQUENCE {

poolIdentity-r12 SL-TxPoolIdentity-r12,

pool-r12 SL-CommResourcePool-r12

}

SL-CommTxPoolToAddModExt-r13 ::= SEQUENCE {

poolIdentity-v1310 SL-TxPoolIdentity-v1310,

pool-r13 SL-CommResourcePool-r12

}

MAC-MainConfigSL-r12 ::= SEQUENCE {

periodic-BSR-TimerSL PeriodicBSR-Timer-r12 OPTIONAL, — Need ON

retx-BSR-TimerSL RetxBSR-Timer-r12

}

— ASN1STOP

SL-CommConfig field descriptions

commTxAllowRelayDedicated

Indicates whether the UE is allowed to transmit relay related sidelink communication using the configured dedicated transmission resources i.e. either via scheduled or via UE selected resources.

commTxPoolNormalDedicated

Indicates a pool of transmission resources the UE is allowed to use while in RRC_CONNECTED.

logicalChGroupInfoList

Indicates for each logical channel group the list of associated priorities, used as specified in TS 36.321 [6], in order of increasing logical channel group identity.

mcs

Indicates the MCS as defined in TS 36.212 [23], clause 14.2.1. If not configured, the selection of MCS is up to UE implementation.

multipleTx

Indicates whether the UE should perform multiple transmissions to different destinations in one SC period in accordance with TS 36.321 [6], clause 5.14.1.1. Value TRUE indicates that multiple transmissions should be performed.

sc-CommTxConfig

Indicates a pool of resources for SC when E-UTRAN schedules Tx resources (i.e. when indices included in DCI format 5 indicate the actual data resources to be used as specified in TS 36.212 [22], clause 5.3.3.1.9).

scheduled

Indicates the configuration for the case E-UTRAN schedules the transmission resources based on sidelink specific BSR from the UE.

ue-Selected

Indicates the configuration for the case the UE selects the transmission resources from a pool of resources configured by E-UTRAN.

SL-CommResourcePool

The IE SL-CommResourcePool and SL-CommResourcePoolV2X specifies the configuration information for an individual pool of resources for sidelink communication and V2X sidelink communication respectively. The IE covers the configuration of both the sidelink control information and the data.

SL-CommResourcePool information element

— ASN1START

SL-CommTxPoolList-r12 ::= SEQUENCE (SIZE (1..maxSL-TxPool-r12)) OF SL-CommResourcePool-r12

SL-CommTxPoolListExt-r13 ::= SEQUENCE (SIZE (1..maxSL-TxPool-v1310)) OF SL-CommResourcePool-r12

SL-CommTxPoolListV2X-r14 ::= SEQUENCE (SIZE (1..maxSL-V2X-TxPool-r14)) OF SL-CommResourcePoolV2X-r14

SL-CommRxPoolList-r12 ::= SEQUENCE (SIZE (1..maxSL-RxPool-r12)) OF SL-CommResourcePool-r12

SL-CommRxPoolListV2X-r14 ::= SEQUENCE (SIZE (1..maxSL-V2X-RxPool-r14)) OF SL-CommResourcePoolV2X-r14

SL-CommResourcePool-r12 ::= SEQUENCE {

sc-CP-Len-r12 SL-CP-Len-r12,

sc-Period-r12 SL-PeriodComm-r12,

sc-TF-ResourceConfig-r12 SL-TF-ResourceConfig-r12,

data-CP-Len-r12 SL-CP-Len-r12,

dataHoppingConfig-r12 SL-HoppingConfigComm-r12,

ue-SelectedResourceConfig-r12 SEQUENCE {

data-TF-ResourceConfig-r12 SL-TF-ResourceConfig-r12,

trpt-Subset-r12 SL-TRPT-Subset-r12 OPTIONAL — Need OP

} OPTIONAL, — Need OR

rxParametersNCell-r12 SEQUENCE {

tdd-Config-r12 TDD-Config OPTIONAL, — Need OP

syncConfigIndex-r12 INTEGER (0..15)

} OPTIONAL, — Need OR

txParameters-r12 SEQUENCE {

sc-TxParameters-r12 SL-TxParameters-r12,

dataTxParameters-r12 SL-TxParameters-r12

} OPTIONAL, — Cond Tx

…,

[[ priorityList-r13 SL-PriorityList-r13 OPTIONAL — Cond Tx

]]

}

SL-CommResourcePoolV2X-r14 ::= SEQUENCE {

sl-OffsetIndicator-r14 SL-OffsetIndicator-r12 OPTIONAL, — Need OR

sl-Subframe-r14 SubframeBitmapSL-r14,

adjacencyPSCCH-PSSCH-r14 BOOLEAN,

sizeSubchannel-r14 ENUMERATED {

n4, n5, n6, n8, n9, n10, n12, n15, n16, n18, n20, n25, n30,

n48, n50, n72, n75, n96, n100, spare13, spare12, spare11,

spare10, spare9, spare8, spare7, spare6, spare5, spare4,

spare3, spare2, spare1},

numSubchannel-r14 ENUMERATED {n1, n3, n5, n8, n10, n15, n20, spare1},

startRB-Subchannel-r14 INTEGER (0..99),

startRB-PSCCH-Pool-r14 INTEGER (0..99) OPTIONAL, — Need OR

rxParametersNCell-r14 SEQUENCE {

tdd-Config-r14 TDD-Config OPTIONAL, — Need OP

syncConfigIndex-r14 INTEGER (0..15)

} OPTIONAL, — Need OR

dataTxParameters-r14 SL-TxParameters-r12 OPTIONAL, — Cond Tx

zoneID-r14 INTEGER (0..7) OPTIONAL, — Need OR

threshS-RSSI-CBR-r14 INTEGER (0..45) OPTIONAL, — Need OR

poolReportId-r14 SL-V2X-TxPoolReportIdentity-r14 OPTIONAL, — Need OR

cbr-pssch-TxConfigList-r14 SL-CBR-PPPP-TxConfigList-r14 OPTIONAL, — Need OR

resourceSelectionConfigP2X-r14 SL-P2X-ResourceSelectionConfig-r14 OPTIONAL, — Cond P2X

syncAllowed-r14 SL-SyncAllowed-r14 OPTIONAL, — Need OR

restrictResourceReservationPeriod-r14 SL-RestrictResourceReservationPeriodList-r14 OPTIONAL, — Need OR

…,

[[ sl-MinT2ValueList-r15 SL-MinT2ValueList-r15 OPTIONAL, — Need OR

cbr-pssch-TxConfigList-v1530 SL-CBR-PPPP-TxConfigList-v1530 OPTIONAL — Need OR

]]

}

SL-TRPT-Subset-r12 ::= BIT STRING (SIZE (3..5))

SL-V2X-TxPoolReportIdentity-r14::= INTEGER (1..maxSL-PoolToMeasure-r14)

SL-MinT2ValueList-r15 ::= SEQUENCE (SIZE (1..maxSL-Prio-r13)) OF SL-MinT2Value-r15

SL-MinT2Value-r15 ::= SEQUENCE {

priorityList-r15 SL-PriorityList-r13,

minT2Value-r15 INTEGER (10..20)

}

— ASN1STOP

SL-CommResourcePool field descriptions

adjacencyPSCCH-PSSCH

Indicates whether a UE shall always transmit PSCCH and PSSCH in adjacent RBs (indicated by TRUE) or in non-adjacent RBs (indicated by FALSE) (see TS 36.213 [23]).

cbr-pssch-TxConfigList

Indicates the mapping between PPPPs, CBR ranges by using indexes of the entry in cbr-RangeCommonConfigList, and PSSCH transmission parameters and CR limit by using indexes of the entry in sl-CBR-PSSCH-TxConfigList.

If SL-CommResourcePoolV2X is included in MobilityControlInfoV2X, it refers to cbr-MobilityTxConfigList for cbr-RangeCommonConfigList and sl-CBR-PSSCH-TxConfigList. If SL-CommResourcePoolV2X is included in SL-V2X-ConfigDedicated, it refers to cbr-DedicatedTxConfigList for cbr-RangeCommonConfigList and sl-CBR-PSSCH-TxConfigList. Otherwise, it refers to cbr-CommonTxConfigList included in the SystemInformationBlockType21 of the serving cell / PCell for cbr-RangeCommonConfigList and sl-CBR-PSSCH-TxConfigList.

minT2Value

Indicates the minimum value of T2 that applies to the PPPP(s), as specified in TS 36.300 [9], included in priorityList.

numSubchannel

indicates the number of subchannels in the corresponding resource pool (see TS 36.213 [23]).

poolReportId

The identity of the transmission resource pool used for CBR measurement reporting, which is corresponding to the poolIdentity reported in measResultListCBR. This field is only present in the transmission pools configured in RRCConnectionReconfiguration and v2x-CommTxPoolExceptional, p2x-CommTxPoolNormalCommon, v2x-CommTxPoolNormalCommon, v2x-CommTxPoolNormal in SystemInformationBlockType21 or SystemInformationBlockType26. Otherwise, the field is absent.

resourceSelectionConfigP2X

Indicates the allowed resource selection mechanism(s), i.e. partial sensing and/or random selection, for P2X related V2X sidelink communication.

restrictResourceReservationPeriod

If configured, the field restrictResourceReservationPeriod configured in v2x-ResourceSelectionConfig shall be ignored for transmission on this pool.

sc-Period

Indicates the period over which resources are allocated in a cell for SC and over which scheduled and UE selected data transmissions occur, see PSCCH period in TS 36.213 [23]. Value in number of subframes. Value sf40 corresponds to 40 subframes, sf80 corresponds to 80 subframes and so on. E-UTRAN configures values sf40, sf80, sf160 and sf320 for FDD and for TDD config 1 to 5, values sf70, sf140 and sf280 for TDD config 0, and finally values sf60, sf120 and sf240 for TDD config 6.

sizeSubchannel

Indicates the number of PRBs of each subchannel in the corresponding resource pool (see TS 36.213 [23]). The value n5 denotes 5 PRBs; n6 denotes 6 PRBs and so on. E-UTRAN configures values n5, n6, n10, n15, n20, n25, n50, n75 and n100 in the case of adjacencyPSCCH-PSSCH set to TRUE; otherwise, E-UTRAN configures values n4, n5, n6, n8, n9, n10, n12, n15, n16, n18, n20, n30, n48, n72 and n96 in the case of adjacencyPSCCH-PSSCH set to FALSE,

sl-minT2ValueList

Indicates a list of minimum value sets for the parameter T2 which is used for UE autonomous resource selection in this resource pool (see TS 36.213 [23]).

sl-OffsetIndicator

Indicates the offset of the first subframe of a resource pool, i.e., the starting subframe of the repeating bitmap sl-Subframe, within a SFN cycle. If absent, the resource pool starts from first subframe of SFN=0. This field is not applicable to V2X sidelink communication.

sl-Subframe

Indicates the bitmap of the resource pool, which is defined by repeating the bitmap within a SFN cycle (see TS 36.213 [23]).

startRB-PSCCH-Pool

Indicates the lowest RB index of the PSCCH pool (see TS 36.213 [23]). This field is absent when a pool is (pre)configured such that a UE always transmits SC and data in adjacent RBs in the same subframe.

startRB-Subchannel

Indicates the lowest RB index of the subchannel with the lowest index (see TS 36.213 [23]).

syncAllowed

Indicates the allowed synchronization reference(s) which is (are) allowed to use the configured resource pool.

syncConfigIndex

Indicates the synchronisation configuration that is associated with a reception pool, by means of an index to the corresponding entry of commSyncConfig in SystemInformationBlockType18 for sidelink communication, or by means of an index to the corresponding entry of v2x-SyncConfig in SystemInformationBlockType21 or SystemInformationBlockType26 for V2X sidelink communication.

tdd-Config

TDD configuration associated with the reception pool of the cell indicated by syncConfigIndex. Absence of the field indicates that the duplex mode is FDD and no TDD specific physical channel configuration is applicable.

threshS-RSSI-CBR

Indicates the S-RSSI threshold for determining the contribution of a sub-channel to the CBR measurement, as specified in TS 36.214 [48]. Value 0 corresponds to -112 dBm, value 1 to -110 dBm, value n to (-112 + n*2) dBm, and so on.

trpt-Subset

Indicates the subset of T-RPT available (see TS 36.213 [23], clause 14.1.1.1.1). Consists of a bitmap which is used to indicate the set of available ‘k’ values to be used for sidelink communication (see TS 36.213 [23], clause 14.1.1.3). If T-RPT subset configuration is not signaled/ preconfigured then UE assumes the whole T-RPT set is available.

zoneID

Indicates the zone ID for which the UE shall use this resource pool as described in 5.10.13.2. The field is absent in v2x-CommTxPoolExceptional, p2x-CommTxPoolNormalCommon, p2x- CommTxPoolNormal and v2x-CommRxPool in SIB21, in SIB26 or in mobilityControlInfoV2X.

Conditional presence

Explanation

Tx

The field is mandatory present when included in commTxPoolNormalDedicated, commTxPoolNormalDedicatedExt, commTxPoolNormalCommon, commTxPoolNormalCommonExt, commTxPoolExceptional, sc-CommTxConfig, v2x-CommTxPoolNormalCommon, v2x-CommTxPoolExceptional, v2x-CommTxPoolNormalDedicated, p2x-CommTxPoolNormalCommon or v2x-CommTxPoolNormal and p2x-CommTxPoolNormal in v2x-InterFreqInfoList. Otherwise the field is not present.

P2X

The field is mandatory present when included in p2x-CommTxPoolNormalCommon, v2x-CommTxPoolNormalDedicated in sl-V2X-ConfigDedicated for P2X related V2X sidelink communication or p2x-CommTxPoolNormal in v2x-InterFreqInfoList. Otherwise the field is not present.

SL-CommTxPoolSensingConfig

The IE SL-CommTxPoolSensingConfig specifies V2X sidelink communication configurations used for UE autonomous resource selection.

SL-CommTxPoolSensingConfig information element

— ASN1START

SL-CommTxPoolSensingConfig-r14 ::= SEQUENCE {

pssch-TxConfigList-r14 SL-PSSCH-TxConfigList-r14,

thresPSSCH-RSRP-List-r14 SL-ThresPSSCH-RSRP-List-r14,

restrictResourceReservationPeriod-r14 SL-RestrictResourceReservationPeriodList-r14 OPTIONAL, — Need OR

probResourceKeep-r14 ENUMERATED {v0, v0dot2, v0dot4, v0dot6, v0dot8,

spare3,spare2, spare1},

p2x-SensingConfig-r14 SEQUENCE {

minNumCandidateSF-r14 INTEGER (1..13),

gapCandidateSensing-r14 BIT STRING (SIZE (10))

} OPTIONAL, — Need OR

sl-ReselectAfter-r14 ENUMERATED {n1, n2, n3, n4, n5, n6, n7, n8, n9,

spare7, spare6, spare5, spare4, spare3, spare2,

spare1} OPTIONAL — Need OR

}

— ASN1STOP

SL-CommTxPoolSensingConfig field descriptions

gapCandidateSensing

Indicates which subframe should be sensed when a certain subframe is considered as a candidate resource (see TS 36.213 [23]).

minNumCandidateSF

Indicates the minimum number of subframes that are included in the possible candidate resources.

p2x-SensingConfig

Indicates the sensing configuration for P2X related V2X sidelink communication transmission only.

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 36.321 [6]).

pssch-TxConfigList

Indicates PSSCH TX parameters such as MCS, PRB number, retransmission number, associated to different UE absolute speeds and different synchronization reference types for UE autonomous resource selection (see TS 36.213 [23]).

restrictResourceReservationPeriod

Indicates which values are allowed for the signaling of the resource reservation period in PSCCH.

sl-ReselectAfter

Indicates the number of consecutive skipped transmissions before triggering resource reselection for V2X sidelink communication (see TS 36.321 [6]).

thresPSSCH-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 (see TS 36.213 [23]). A resource is excluded if it is indicated or reserved by a decoded SCI and PSSCH RSRP in the associated data resource is above a threshold.

SL-CP-Len

The IE SL-CP-Len indicates the cyclic prefix length, see TS 36.211 [21].

SL-CP-Len information element

— ASN1START

SL-CP-Len-r12 ::= ENUMERATED {normal, extended}

— ASN1STOP

SL-DiscConfig

The IE SL-DiscConfig specifies the dedicated configuration information for sidelink discovery.

SL-DiscConfig information element

— ASN1START

SL-DiscConfig-r12 ::= SEQUENCE {

discTxResources-r12 CHOICE {

release NULL,

setup CHOICE {

scheduled-r12 SEQUENCE {

discTxConfig-r12 SL-DiscResourcePool-r12 OPTIONAL, — Need ON

discTF-IndexList-r12 SL-TF-IndexPairList-r12 OPTIONAL, — Need ON

discHoppingConfig-r12 SL-HoppingConfigDisc-r12

OPTIONAL — Need ON

},

ue-Selected-r12 SEQUENCE {

discTxPoolDedicated-r12 SEQUENCE {

poolToReleaseList-r12 SL-TxPoolToReleaseList-r12 OPTIONAL, — Need ON

poolToAddModList-r12 SL-DiscTxPoolToAddModList-r12 OPTIONAL — Need ON

} OPTIONAL — Need ON

}

}

} OPTIONAL, — Need ON

…,

[[ discTF-IndexList-v1260 CHOICE {

release NULL,

setup SEQUENCE {

discTF-IndexList-r12b SL-TF-IndexPairList-r12b

}

} OPTIONAL — Need ON

]],

[[ discTxResourcesPS-r13 CHOICE {

release NULL,

setup CHOICE {

scheduled-r13 SL-DiscTxConfigScheduled-r13,

ue-Selected-r13 SEQUENCE {

discTxPoolPS-Dedicated-r13 SL-DiscTxPoolDedicated-r13

}

}

} OPTIONAL, — Need ON

discTxInterFreqInfo-r13 CHOICE {

release NULL,

setup SEQUENCE {

discTxCarrierFreq-r13 ARFCN-ValueEUTRA-r9 OPTIONAL, — Need OR

discTxRefCarrierDedicated-r13 SL-DiscTxRefCarrierDedicated-r13 OPTIONAL, — Need OR

discTxInfoInterFreqListAdd-r13 SL-DiscTxInfoInterFreqListAdd-r13 OPTIONAL — Need ON

}

} OPTIONAL, — Need ON

gapRequestsAllowedDedicated-r13 BOOLEAN OPTIONAL, — Need ON

discRxGapConfig-r13 CHOICE {

release NULL,

setup SL-GapConfig-r13

} OPTIONAL, — Need ON

discTxGapConfig-r13 CHOICE {

release NULL,

setup SL-GapConfig-r13

} OPTIONAL, — Need ON

discSysInfoToReportConfig-r13 CHOICE {

release NULL,

setup SL-DiscSysInfoToReportFreqList-r13

} OPTIONAL — Need ON

]]

}

SL-DiscSysInfoToReportFreqList-r13 ::= SEQUENCE (SIZE (1..maxFreq)) OF ARFCN-ValueEUTRA-r9

SL-DiscTxInfoInterFreqListAdd-r13 ::= SEQUENCE {

discTxFreqToAddModList-r13 SEQUENCE (SIZE (1..maxFreq)) OF SL-DiscTxResourceInfoPerFreq-r13 OPTIONAL, — Need ON

discTxFreqToReleaseList-r13 SEQUENCE (SIZE (1..maxFreq)) OF ARFCN-ValueEUTRA-r9 OPTIONAL, — Need ON

}

SL-DiscTxResourceInfoPerFreq-r13 ::= SEQUENCE {

discTxCarrierFreq-r13 ARFCN-ValueEUTRA-r9,

discTxResources-r13 SL-DiscTxResource-r13 OPTIONAL, — Need OR

discTxResourcesPS-r13 SL-DiscTxResource-r13 OPTIONAL, — Need OR

discTxRefCarrierDedicated-r13 SL-DiscTxRefCarrierDedicated-r13 OPTIONAL, — Need OR

discCellSelectionInfo-r13 CellSelectionInfoNFreq-r13 OPTIONAL, — Need OR

}

SL-DiscTxResource-r13 ::= CHOICE {

release NULL,

setup CHOICE {

scheduled-r13 SL-DiscTxConfigScheduled-r13,

ue-Selected-r13 SL-DiscTxPoolDedicated-r13

}

}

SL-DiscTxPoolToAddModList-r12 ::= SEQUENCE (SIZE (1..maxSL-TxPool-r12)) OF SL-DiscTxPoolToAddMod-r12

SL-DiscTxPoolToAddMod-r12 ::= SEQUENCE {

poolIdentity-r12 SL-TxPoolIdentity-r12,

pool-r12 SL-DiscResourcePool-r12

}

SL-DiscTxConfigScheduled-r13 ::= SEQUENCE {

discTxConfig-r13 SL-DiscResourcePool-r12 OPTIONAL, — Need ON

discTF-IndexList-r13 SL-TF-IndexPairList-r12b OPTIONAL, — Need ON

discHoppingConfig-r13 SL-HoppingConfigDisc-r12 OPTIONAL,– Need ON

}

SL-DiscTxPoolDedicated-r13 ::= SEQUENCE {

poolToReleaseList-r13 SL-TxPoolToReleaseList-r12 OPTIONAL, — Need ON

poolToAddModList-r13 SL-DiscTxPoolToAddModList-r12 OPTIONAL — Need ON

}

SL-TF-IndexPairList-r12 ::= SEQUENCE (SIZE (1..maxSL-TF-IndexPair-r12)) OF SL-TF-IndexPair-r12

SL-TF-IndexPair-r12 ::= SEQUENCE {

discSF-Index-r12 INTEGER (1..200) OPTIONAL, — Need ON

discPRB-Index-r12 INTEGER (1..50) OPTIONAL — Need ON

}

SL-TF-IndexPairList-r12b ::= SEQUENCE (SIZE (1..maxSL-TF-IndexPair-r12)) OF SL-TF-IndexPair-r12b

SL-TF-IndexPair-r12b ::= SEQUENCE {

discSF-Index-r12b INTEGER (0..209) OPTIONAL, — Need ON

discPRB-Index-r12b INTEGER (0..49) OPTIONAL — Need ON

}

SL-DiscTxRefCarrierDedicated-r13 ::= CHOICE {

pCell NULL,

sCell SCellIndex-r10

}

— ASN1STOP

SL-DiscConfig field descriptions

discCellSelectionInfo

Parameters that may be used by the UE to select/ reselect a cell on the concerned non serving frequency. If absent, the UE acquires the information from the target cell on the concerned frequency. See TS 36.304 [4], clause 11.4.

discSysInfoToReportConfig

Indicates the request to start a SidelinkUEInformation procedure for reporting system information acquired during an inter-frequency discovery procedure.

discTF-IndexList

Indicates a list of time-frequency resource indices pair where each pair of indices corresponds to one discovery message. E-UTRAN only configures discTF-IndexList-r12b when configuring the UE with scheduled SL discovery Tx resources. When receiving discTF-IndexList-r12b, the UE shall only consider this field (and hence ignore discTF-IndexList-r12, if included or previously configured).

discTxConfig

Indicates the resources configuration used when E-UTRAN schedules Tx resources (i.e. the fields discSF-Index and discPRB-Index indicate the actual resources to be used).

discTxInterFreqInfo

Indicates frequency applicable for the resources indicated by discTxResources-r12 (i.e. original resource field may cover first inter-frequency), and possibly resource allocations on additional frequencies as may be indicated by field discTxInfoInterFreqListAdd.

discTxRefCarrierDedicated

Indicates if the PCell or an SCell is to be used as reference for DL measurements and synchronization, instead of the DL frequency paired with the one used to transmit sidelink discovery announcements on, see TS 36.213 [23], clause 14.3.1.

discTxResources

Indicates the resources assigned to the UE for discovery announcements, which can either be a pool from which the UE may select or a set of resources specifically assigned for use by the UE.

discTxResourcesPS

Indicates the resources assigned to the UE for PS discovery announcements, which can either be a pool from which the UE may select or a set of resources specifically assigned for use by the UE.

SL-TF-IndexPair

A pair of indices, one for the time domain and one for the frequency domain, indicating the start of resources within the pool covered by discTxConfig, see TS 36.211 [21], clause 9.5.6 for one discovery message. The upper limits of discSF-Index and discPRB-Index are defined in TS 36.213 [23], clause 14.3.1.

SL-DiscResourcePool

The IE SL-DiscResourcePool specifies the configuration information for an individual pool of resources for sidelink discovery.

SL-DiscResourcePool information element

— ASN1START

SL-DiscTxPoolList-r12 ::= SEQUENCE (SIZE (1..maxSL-TxPool-r12)) OF SL-DiscResourcePool-r12

SL-DiscRxPoolList-r12 ::= SEQUENCE (SIZE (1..maxSL-RxPool-r12)) OF SL-DiscResourcePool-r12

SL-DiscResourcePool-r12 ::= SEQUENCE {

cp-Len-r12 SL-CP-Len-r12,

discPeriod-r12 ENUMERATED {rf32, rf64, rf128,

rf256, rf512, rf1024, rf16-v1310, spare},

numRetx-r12 INTEGER (0..3),

numRepetition-r12 INTEGER (1..50),

tf-ResourceConfig-r12 SL-TF-ResourceConfig-r12,

txParameters-r12 SEQUENCE {

txParametersGeneral-r12 SL-TxParameters-r12,

ue-SelectedResourceConfig-r12 SEQUENCE {

poolSelection-r12 CHOICE {

rsrpBased-r12 SL-PoolSelectionConfig-r12,

random-r12 NULL

},

txProbability-r12 ENUMERATED {p25, p50, p75, p100}

} OPTIONAL — Need OR

} OPTIONAL, — Cond Tx

rxParameters-r12 SEQUENCE {

tdd-Config-r12 TDD-Config OPTIONAL, — Need OR

syncConfigIndex-r12 INTEGER (0..15)

} OPTIONAL, — Need OR

…,

[[ discPeriod-v1310 CHOICE {

release NULL,

setup ENUMERATED {rf4, rf6, rf7, rf8,

rf12, rf14, rf24, rf28}

} OPTIONAL, — Need ON

rxParamsAddNeighFreq-r13 CHOICE {

release NULL,

setup SEQUENCE {

physCellId-r13 PhysCellIdList-r13

}

} OPTIONAL, — Need ON

txParamsAddNeighFreq-r13 CHOICE {

release NULL,

setup SEQUENCE {

physCellId-r13 PhysCellIdList-r13,

p-Max P-Max OPTIONAL, — Need OP

tdd-Config-r13 TDD-Config OPTIONAL, — Cond TDD-OR

tdd-Config-v1130 TDD-Config-v1130 OPTIONAL, — Cond TDD-OR

freqInfo SEQUENCE {

ul-CarrierFreq ARFCN-ValueEUTRA OPTIONAL, — Need OP

ul-Bandwidth ENUMERATED {n6, n15, n25, n50, n75, n100}

OPTIONAL, — Need OP

additionalSpectrumEmission AdditionalSpectrumEmission

},

referenceSignalPower INTEGER (-60..50),

syncConfigIndex-r13 INTEGER (0..15) OPTIONAL — Need OR

}

} OPTIONAL — Need ON

]],

[[ txParamsAddNeighFreq-v1370 CHOICE {

release NULL,

setup SEQUENCE {

freqInfo-v1370 SEQUENCE {

additionalSpectrumEmission-v1370 AdditionalSpectrumEmission-v10l0

}

}

} OPTIONAL — Need ON

]]

}

PhysCellIdList-r13 ::= SEQUENCE (SIZE (1..maxSL-DiscCells-r13)) OF PhysCellId

SL-PoolSelectionConfig-r12 ::= SEQUENCE {

threshLow-r12 RSRP-RangeSL2-r12,

threshHigh-r12 RSRP-RangeSL2-r12

}

— ASN1STOP

SL-DiscResourcePool field descriptions

discPeriod

Indicates the period over which resources are allocated in a cell for discovery message transmission/reception, see PSDCH period in TS 36.213 [23]. Value in number of radio frames. Value rf32 corresponds to 32 radio frames, rf64 corresponds to 64 radio frames and so on. The extended values apply for PS discovery (not only for sidelink relaying). When broadcasting an extended value, E-UTRAN sets the original field to spare to ensure legacy UEs ignore the concerned pool entry.

numRepetition

Indicates the number of times subframeBitmap is repeated for mapping to subframes that occurs within a discPeriod. The highest value E-UTRAN uses is value 5 for FDD and TDD configuration 0, value 13 for TDD configuration 1, value 25 for TDD configuration 2, value 17 for TDD configuration 3, value 25 for TDD configuration 4, value 50 for TDD configuration 5 and value 7 for TDD configuration 6. E-UTRAN configures numRepetition and subframeBitmap such that the mapped subframes do not exceed the discPeriod.

poolSelection

Indicates the mechanism for selecting a (transmission) pool when multiple candidates are provided. E-UTRAN configures the same value (i.e. a pool selection method) for all candidate pools within one pool list (discTxPoolCommon or discTxPoolDedicated) but the pool selection method in different pool lists may or may not be the same.

syncConfigIndex

Indicates the synchronisation configuration that is associated with a reception or transmission pool, by means of an index to the corresponding entry of discSyncConfig in SystemInformationBlockType19.

threshLow, threshHigh

Specifies the thresholds used to select a resource pool in RSRP based pool selection. The E-UTRAN should configure threshLow and threshHigh such that the UE selects only one resource pool upon RSRP based pool selection.

txProbability

Indicates the probability of transmitting announcement in a discovery period when configured with a pool of resources, see TS 36.321 [6].

Conditional presence

Explanation

TDD-OR

The field is optional present for TDD, need OR; it is not present for FDD.

Tx

The field is mandatory present when included in discTxPoolDedicated or discTxPoolCommon. Otherwise the field is not present.

SL-DiscSysInfoReport

The IE SL-DiscSysInfoReport contains the parameters related to sidelink discovery acquired from system information of inter-frequency cells (including inter-PLMN).

SL-DiscSysInfoReport information element

— ASN1START

SL-DiscSysInfoReport-r13 ::= SEQUENCE {

plmn-IdentityList-r13 PLMN-IdentityList OPTIONAL,

cellIdentity-13 CellIdentity OPTIONAL,

carrierFreqInfo-13 ARFCN-ValueEUTRA-r9 OPTIONAL,

discRxResources-r13 SL-DiscRxPoolList-r12 OPTIONAL,

discTxPoolCommon-r13 SL-DiscTxPoolList-r12 OPTIONAL,

discTxPowerInfo-r13 SL-DiscTxPowerInfoList-r12 OPTIONAL,

discSyncConfig-r13 SL-SyncConfigNFreq-r13 OPTIONAL,

discCellSelectionInfo-r13 SEQUENCE {

q-RxLevMin-r13 Q-RxLevMin,

q-RxLevMinOffset-r13 INTEGER (1..8) OPTIONAL

} OPTIONAL,

cellReselectionInfo-r13 SEQUENCE {

q-Hyst-r13 ENUMERATED {

dB0, dB1, dB2, dB3, dB4, dB5, dB6, dB8, dB10,

dB12, dB14, dB16, dB18, dB20, dB22, dB24},

q-RxLevMin-r13 Q-RxLevMin,

t-ReselectionEUTRA-r13 T-Reselection

} OPTIONAL,

tdd-Config-r13 TDD-Config OPTIONAL,

freqInfo-r13 SEQUENCE {

ul-CarrierFreq-r13 ARFCN-ValueEUTRA OPTIONAL,

ul-Bandwidth-r13 ENUMERATED {n6, n15, n25, n50, n75, n100}

OPTIONAL,

additionalSpectrumEmission-r13 AdditionalSpectrumEmission OPTIONAL

} OPTIONAL,

p-Max-r13 P-Max OPTIONAL,

referenceSignalPower-r13 INTEGER (-60..50) OPTIONAL,

…,

[[

freqInfo-v1370 SEQUENCE {

additionalSpectrumEmission-v1370 AdditionalSpectrumEmission-v10l0

} OPTIONAL

]]

}

— ASN1STOP

SL-DiscSysInfoReport field descriptions

carrierFreqInfo

Indicates the frequency of the cell from which the UE acquired the system information relevant for discovery

cellIdentity

Indicated the identity of the cell from which the UE acquired the system information relevant for discovery

plmn-IdentityList

Indicates the list of PLMN identity of the cell from which the UE acquired the system information relevant for discovery

SL-DiscTxPowerInfo

The IE SL-DiscTxPowerInfo specifies power control parameters for one or more power classes.

SL-DiscTxPowerInfo information element

— ASN1START

SL-DiscTxPowerInfoList-r12 ::= SEQUENCE (SIZE (maxSL-DiscPowerClass-r12)) OF SL-DiscTxPowerInfo-r12

SL-DiscTxPowerInfo-r12 ::= SEQUENCE {

discMaxTxPower-r12 P-Max,

}

— ASN1STOP

SL-DiscTxPowerInfo field descriptions

discMaxTxPower

Indicates the P-Max parameter used to calculate the maximum transmit power a UE configured with the concerned range class, see TS 24.333 [70], clause 4.2.11. The first entry in SL-DiscTxPowerInfoList corresponds to UE range class ‘short’, the second entry corresponds to ‘medium’ and the third entry corresponds to ‘long’.

SL-GapConfig

The IE SL-GapConfig indicates the gaps, requested or assigned, to enable the UE to receive or transmit sidelink discovery, intra or inter frequency (includings inter-PLMN).

SL-GapConfig information element

— ASN1START

SL-GapConfig-r13 ::= SEQUENCE {

gapPatternList-r13 SL-GapPatternList-r13

}

SL-GapPatternList-r13 ::= SEQUENCE (SIZE (1..maxSL-GP-r13)) OF SL-GapPattern-r13

SL-GapPattern-r13 ::= SEQUENCE {

gapPeriod-r13 ENUMERATED {sf40, sf60, sf70, sf80, sf120, sf140, sf160,

sf240, sf280, sf320, sf640, sf1280, sf2560, sf5120,

sf10240},

gapOffset-r12 SL-OffsetIndicator-r12,

gapSubframeBitmap-r13 BIT STRING (SIZE (1..10240)),

}

— ASN1STOP

SL-GapConfig field descriptions

gapOffset

Indicates the offset from the start of SFN 0 to the start of the first gapPeriod. If the SFN period is not an integer multiple of gapPeriod, no subframes within this period (i.e. from SFN 0 to offset) are considered part of the gap.

gapPeriod

Indicates the period by which gapSubframeBitmap is repeated.

gapSubframeBitmap

Indicates the subframes of one or more individual gaps, not only covering the subframes of the associated discovery resources but also including e.g. re-tuning and synchronisation delays. The UE and E-UTRAN signal bit strings of valid sizes only i.e. sizes equal to or less than gapPeriod. Value 1 indicates that the UE is allowed to use the subframe for sidelink discovery.

SL-GapRequest

The IE SL-GapRequest indicates the gaps requested by the UE to receive or transmit sidelink discovery, intra or inter frequency (includings inter-PLMN).

SL-GapRequest information element

— ASN1START

SL-GapRequest-r13 ::= SEQUENCE (SIZE (1..maxFreq)) OF SL-GapFreqInfo-r13

SL-GapFreqInfo-r13 ::= SEQUENCE {

carrierFreq-r13 ARFCN-ValueEUTRA-r9 OPTIONAL,

gapPatternList-r13 SL-GapPatternList-r13

}

— ASN1STOP

SL-HoppingConfig

The IE SL-HoppingConfig indicates the hopping configuration used for sidelink.

SL-HoppingConfig information element

— ASN1START

SL-HoppingConfigComm-r12 ::= SEQUENCE {

hoppingParameter-r12 INTEGER (0..504),

numSubbands-r12 ENUMERATED {ns1, ns2, ns4},

rb-Offset-r12 INTEGER (0..110)

}

SL-HoppingConfigDisc-r12 ::= SEQUENCE {

a-r12 INTEGER (1..200),

b-r12 INTEGER (1..10),

c-r12 ENUMERATED {n1, n5}

}

— ASN1STOP

SL-HoppingConfig field descriptions

a

Per cell parameter: see TS 36.213 [23], clause 14.3.1.

b

Per UE parameter: see TS 36.213 [23], clause 14.3.1.

c

Per cell parameter: see TS 36.213 [23], clause 14.3.1.

hoppingParameter

Affects the hopping performed as specificed in TS 36.213 [23], clauses 14.1.1.2 and 14.1.1.4. In case value 504 is received, the value used by the UE is 510.

numSubbands

Parameter: Nsb see TS 36.211 [21], clause 9.3.6.

rb-Offset

Parameter: , see TS 36.211 [21], clause 9.3.6.

SL-InterFreqInfoListV2X

The IE SL-InterFreqInfoListV2X indicates synchronization and resource allocation configurations of the neighboring frequency for V2X sidelink communication.

SL-InterFreqInfoListV2X information element

— ASN1START

SL-InterFreqInfoListV2X-r14 ::= SEQUENCE (SIZE (0..maxFreqV2X-1-r14)) OF SL-InterFreqInfoV2X-r14

SL-InterFreqInfoV2X-r14 ::= SEQUENCE {

plmn-IdentityList-r14 PLMN-IdentityList OPTIONAL, — Need OP

v2x-CommCarrierFreq-r14 ARFCN-ValueEUTRA-r9,

sl-MaxTxPower-r14 P-Max OPTIONAL, — Need OR

sl-Bandwidth-r14 ENUMERATED {n6, n15, n25, n50, n75, n100} OPTIONAL, — Need OR

v2x-SchedulingPool-r14 SL-CommResourcePoolV2X-r14 OPTIONAL, — Need OR

v2x-UE-ConfigList-r14 SL-V2X-UE-ConfigList-r14 OPTIONAL, — Need OR

…,

[[ additionalSpectrumEmissionV2X-r14 CHOICE {

additionalSpectrumEmission-r14 AdditionalSpectrumEmission,

additionalSpectrumEmission-v1440 AdditionalSpectrumEmission-v10l0

} OPTIONAL — Need ON

]],

[[ v2x-FreqSelectionConfigList-r15 SL-V2X-FreqSelectionConfigList-r15 OPTIONAL –Need OR

]]

}

— ASN1STOP

SL-InterFreqInfoListV2X field descriptions

plmn-IdentityList

Indicates PLMN identities of this frequency for reception of V2X sidelink communication. If this field is not present, the UE considers this frequency for reception of V2X sidelink communication concerns the first PLMN entry in the plmn-IdentityList in SystemInformationBlockType1.

sl-MaxTxPower

Indicates the maximum transmission power for transmitting V2X sidelink communication on the corresponding frequency.

additionalSpectrumEmissionV2X

Indicates the additionalSpectrumEmission value defined in TS 36.101 [42], clause 6.2.4, for V2X sidelink communication.

v2x-FreqSelectionConfigList

Indicates the configuration information for the carrier selection for V2X sidelink communication transmission. The configuration applies to the carrier frequency identified by v2x-CommCarrierFreq (i.e. carrier specific configuration).

v2x-SchedulingPool

Indicates the resource pool for inter-carrier scheduled resource allocation. This field is configured in RRC dedicated signalling only when scheduled is configured in IE SL-V2X-ConfigDedicated.

v2x-UE-ConfigList

Indicates the inter-carrier resource configuration. If there is only one entry in the list without physCellId configured, the configuration is applied to the frequency identified by v2x-CommCarrierFreq (i.e. carrier specific configuration); if the entry of this field includes physCellIdList, the configuration is applied to the cell(s) identified by physCellIdList (i.e. cell specific configuration).

SL-V2X-UE-ConfigList

The IE SL-V2X-UE-ConfigList indicates inter-frequency resource configuration per-carrier or per-cell.

SL-V2X-UE-ConfigList information element

— ASN1START

SL-V2X-UE-ConfigList-r14 ::= SEQUENCE (SIZE (1..maxCellIntra)) OF SL-V2X-InterFreqUE-Config-r14

SL-V2X-InterFreqUE-Config-r14 ::= SEQUENCE {

physCellIdList-r14 PhysCellIdList-r13 OPTIONAL, — Need OR

typeTxSync-r14 SL-TypeTxSync-r14 OPTIONAL, — Need OR

v2x-SyncConfig-r14 SL-SyncConfigListNFreqV2X-r14 OPTIONAL, — Need OR

v2x-CommRxPool-r14 SL-CommRxPoolListV2X-r14 OPTIONAL, — Need OR

v2x-CommTxPoolNormal-r14 SL-CommTxPoolListV2X-r14 OPTIONAL, — Need OR

p2x-CommTxPoolNormal-r14 SL-CommTxPoolListV2X-r14 OPTIONAL, — Need OR

v2x-CommTxPoolExceptional-r14 SL-CommResourcePoolV2X-r14 OPTIONAL, — Need OR

v2x-ResourceSelectionConfig-r14 SL-CommTxPoolSensingConfig-r14 OPTIONAL, — Need OR

zoneConfig-r14 SL-ZoneConfig-r14 OPTIONAL, — Need OR

offsetDFN-r14 INTEGER (0..1000) OPTIONAL, — Need OR

}

— ASN1STOP

SL-V2X-UE-ConfigList field descriptions

offsetDFN

Indicates the timing offset for the UE to determine DFN timing when GNSS is used for timing reference. Value 0 corresponds to 0 milliseconds, value 1 corresponds to 0.001 milliseconds, value 2 corresponds to 0.002 milliseconds, and so on.

p2x-CommTxPoolNormal

Indicates the resources on a carrier frequency by which the UE may transmit P2X related V2X sidelink communication.

physCellIdList

If configured, the resource configuration is applicable for the cell(s) identified by this field. Otherwise, the resource configuration is for a given carrier frequency.

typeTxSync

Indicates the prioritized synchronization type (i.e. eNB or GNSS) for performing V2X sidelink communication on a carrier frequency.

v2x-CommRxPool

Indicates the resources on a carrier frequency by which the UE may receive V2X sidelink communication. This field is absent within v2x-InterFreqInfoList included in RRCConnectionReconfiguration except if received with MobilityControlInfo or MobilityControlInfoV2X.

v2x-CommTxPoolExceptional

Indicates the resources on a carrier frequency by which the UE may transmit V2X sidelink communication in exceptional conditions, as specified in 5.10.13.

v2x-CommTxPoolNormal

Indicates the resources on a carrier frequency by which the UE may transmit V2X sidelink communication.

v2x-SyncConfig

Indicates the synchronization configuration used for transmission/reception of SLSS on the given frequency.

SL-OffsetIndicator

The IE SL-OffsetIndicator indicates the offset of the pool of resources relative to SFN 0 of the cell from which it was obtained or, when out of coverage, relative to DFN 0.

SL-OffsetIndicator information element

— ASN1START

SL-OffsetIndicator-r12 ::= CHOICE {

small-r12 INTEGER (0..319),

large-r12 INTEGER (0..10239)

}

SL-OffsetIndicatorSync-r12 ::= INTEGER (0..39)

SL-OffsetIndicatorSync-v1430 ::= INTEGER (40..159)

SL-OffsetIndicatorSync-r14 ::= INTEGER (0..159)

— ASN1STOP

SL-OffsetIndicator field descriptions

SL-OffsetIndicator

In sc-TF-ResourceConfig, it indicates the offset of the first period of pool of resources within a SFN cycle. For data-TF-ResourceConfig, it corresponds to the offsetIndicator as defined in TS 36.213 [23], clause 14.1.3.

SL-OffsetIndicatorSync

For sidelink discovery and sidelink communication, synchronisation resources are present in those SFN and subframes which satisfy the relation: (SFN*10+ Subframe Number) mod 40 = SL-OffsetIndicatorSync. For V2X sidelink communication, synchronisation resources are present in those SFN and subframes which satisfy the relation: (SFN*10+ Subframe Number) mod 160 = SL-OffsetIndicatorSync.

SL-P2X-ResourceSelectionConfig

The IE SL-P2X-ResourceSelectionConfig includes the configuration of resource selection for P2X related V2X sidelink communication. E-UTRAN configures at least one resource selection mechanism.

SL-P2X-ResourceSelectionConfig information element

— ASN1START

SL-P2X-ResourceSelectionConfig-r14 ::= SEQUENCE {

partialSensing-r14 ENUMERATED {true} OPTIONAL, — Need OR

randomSelection-r14 ENUMERATED {true} OPTIONAL — Need OR

}

— ASN1STOP

SL-P2X-ResourceSelectionConfig field descriptions

partialSensing

Indicates that partial sensing is allowed for UE autonomous resource selection in a resource pool.

randomSelection

Indicates that random selection is allowed for UE autonomous resource selection in a resource pool.

SL-PeriodComm

The IE SL-PeriodComm indicates the period over which resources allocated in a cell for sidelink communication.

SL-PeriodComm information element

— ASN1START

SL-PeriodComm-r12 ::= ENUMERATED {sf40, sf60, sf70, sf80, sf120, sf140,

sf160, sf240, sf280, sf320, spare6, spare5,

spare4, spare3, spare2, spare}

— ASN1STOP

SL-Priority

The IE SL-Priority indicates the one or more priorities of resource pool used for sidelink communication, or of a logical channel group used in case of scheduled sidelink communication resources, see TS 36.321 [6].

SL-Priority information element

— ASN1START

SL-PriorityList-r13 ::= SEQUENCE (SIZE (1..maxSL-Prio-r13)) OF SL-Priority-r13

SL-Priority-r13 ::= INTEGER (1..8)

— ASN1STOP

SL-PSSCH-TxConfigList

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-PPPP-TxConfigList. Only one IE SL-PSSCH-TxConfig is provided per typeTxSync.

SL-PSSCH-TxConfigList information element

— ASN1START

SL-PSSCH-TxConfigList-r14 ::= SEQUENCE (SIZE (1..maxPSSCH-TxConfig-r14)) OF SL-PSSCH-TxConfig-r14

SL-PSSCH-TxConfig-r14 ::= SEQUENCE {

typeTxSync-r14 SL-TypeTxSync-r14 OPTIONAL, — Need OR

thresUE-Speed-r14 ENUMERATED {kmph60, kmph80, kmph100, kmph120,

kmph140, kmph160, kmph180, kmph200},

parametersAboveThres-r14 SL-PSSCH-TxParameters-r14,

parametersBelowThres-r14 SL-PSSCH-TxParameters-r14,

…,

[[ parametersAboveThres-v1530 SL-PSSCH-TxParameters-v1530 OPTIONAL, — Need OR

parametersBelowThres-v1530 SL-PSSCH-TxParameters-v1530 OPTIONAL — Need OR

]]

}

SL-PSSCH-TxParameters-r14 ::= SEQUENCE {

minMCS-PSSCH-r14 INTEGER (0..31),

maxMCS-PSSCH-r14 INTEGER (0..31),

minSubChannel-NumberPSSCH-r14 INTEGER (1..20),

maxSubchannel-NumberPSSCH-r14 INTEGER (1..20),

allowedRetxNumberPSSCH-r14 ENUMERATED {n0, n1, both, spare1},

maxTxPower-r14 SL-TxPower-r14 OPTIONAL — Cond CBR

}

SL-PSSCH-TxParameters-v1530 ::= SEQUENCE {

minMCS-PSSCH-r15 INTEGER (0..31),

maxMCS-PSSCH-r15 INTEGER (0..31)

}

— ASN1STOP

SL-PSSCH-TxConfigList field descriptions

allowedRetxNumberPSSCH

Indicates the allowed retransmission number for transmissions on PSSCH (see TS 36.213 [23]). The value n0 indicates no retransmission for a transport block allowed; the value n1 indicates that the UE shall perform one retransmission for a transport block; and the value both indicates that the UE may autonomously select no retransmission or one retransmission for a transport block.

maxTxPower

Indicates the maximum transmission power for transmission on PSSCH and PSCCH (see TS 36.213 [23]).

minMCS-PSSCH, maxMCS-PSSCH

Indicates the minimum and maximum MCS values used for transmissions on PSSCH (see TS 36.213 [23]). If included, minMCS-PSSCH-r14 and maxMCS-PSSCH-r14 correspond to the MCS table in Table 8.6.1-1 with 64QAM indices overridden by 16QAM used for transmission on PSSCH. If included, minMCS-PSSCH-r15 and maxMCS-PSSCH-r15 correspond to both the MCS table in Table 8.6.1-1 and Table 14.1.1-2 in TS 36.213 [23] used for transmission on PSSCH.

minSubchannel-NumberPSSCH, maxSubchannel-NumberPSSCH

Indicates the minimum and maximum number of sub-channels which may be used for transmissions on PSSCH (see TS 36.213 [23]).

thresUE-Speed

Indicates a UE speed threshold.

typeTxSync

Indicates the synchronization reference type (see TS 36.213 [23]). For configurations by the eNB, only gnss and enb can be configured; and for pre-configuration, only gnss and ue can be configured. If the field is absent, the configuration is applicable for all synchronization reference types.

parametersAboveThres

Indicates TX parameters for the UE speed above thresUE-Speed.

parametersBelowThres

Indicates TX parameters for the UE speed below thresUE-Speed.

Conditional presence

Explanation

CBR

The field is optionally present, need OR, in IE SL-CBR-CommonTxConfigList-r14, or in IE SL-CBR-PreconfigTxConfigList-r14. Otherwise the field is not present. Need OR.

– SL-Reliability

The IE SL-Reliability indicates one or more reliabilities of a logical channel group used in case of scheduled sidelink communication resources or traffic reliability(ies) associated with the reported traffic pattern for V2X sidelink communication; see TS 36.321 [6].

SL-Reliability information element

— ASN1START

SL-ReliabilityList-r15 ::= SEQUENCE (SIZE (1..maxSL-Reliability-r15)) OF SL-Reliability-r15

SL-Reliability-r15 ::= INTEGER (1..8)

— ASN1STOP

SL-RestrictResourceReservationPeriodList

The IE SL-RestrictResourceReservationPeriodList indicates which values are allowed for the signaling of the resource reservation period in PSCCH for V2X sidelink communication, see TS 36.321 [6].

SL-RestrictResourceReservationPeriodList information element

— ASN1START

SL-RestrictResourceReservationPeriodList-r14 ::= SEQUENCE (SIZE (1..maxReservationPeriod-r14)) OF SL-RestrictResourceReservationPeriod-r14

SL-RestrictResourceReservationPeriod-r14 ::= ENUMERATED {v0dot2, v0dot5, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, spare4,spare3, spare2, spare1}

— ASN1STOP

SL-RestrictResourceReservationPeriodList field descriptions

SL-RestrictResourceReservationPeriod

Value v0dot2 means SL-RestrictResourceReservationPeriod is set to 0.2, value v0dot5 means SL-RestrictResourceReservationPeriod is set to 0.5, value v1 means SL-RestrictResourceReservationPeriod is set to 1, and so on. Value v0dot2 and value v0dot5 are configured in a pool-specific manner only. E-UTRAN should not set value v0dot2 and v0dot5 for transmission pool for P2X related V2X sidelink communication.

SLSSID

The IE SLSSID identifies a cell and is used by the receiving UE to detect asynchronous neighbouring cells, and by transmitting UEs to extend the synchronisation signals beyond the cell’s coverage area.

SLSSID information element

— ASN1START

SLSSID-r12 ::= INTEGER (0..167)

— ASN1STOP

SL-SyncAllowed

The IE SL-SyncAllowed indicates the allowed the synchronization references for a transmission resource pool for V2X sidelink communication.

SL-SyncAllowed information element

— ASN1START

SL-SyncAllowed-r14 ::= SEQUENCE {

gnss-Sync-r14 ENUMERATED {true} OPTIONAL, — Need OR

enb-Sync-r14 ENUMERATED {true} OPTIONAL, — Need OR

ue-Sync-r14 ENUMERATED {true} OPTIONAL — Need OR

}

— ASN1STOP

SL-SyncAllowed field descriptions

enb-Sync

If configured, the (pre-) configured resources can be used if the UE is directly or indirectly synchronized to eNB (i.e., synchronized to a reference UE which is directly synchronized to eNB).

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 synchronized to neither GNSS nor eNB directly or indirectly.

SL-SyncConfig

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 and sidelink discovery.

SL-SyncConfig information element

— ASN1START

SL-SyncConfigList-r12 ::= SEQUENCE (SIZE (1..maxSL-SyncConfig-r12)) OF SL-SyncConfig-r12

SL-SyncConfigListV2X-r14 ::= SEQUENCE (SIZE (1..maxSL-V2X-SyncConfig-r14)) OF SL-SyncConfig-r12

SL-SyncConfig-r12 ::= SEQUENCE {

syncCP-Len-r12 SL-CP-Len-r12,

syncOffsetIndicator-r12 SL-OffsetIndicatorSync-r12,

slssid-r12 SLSSID-r12,

txParameters-r12 SEQUENCE {

syncTxParameters-r12 SL-TxParameters-r12,

syncTxThreshIC-r12 RSRP-RangeSL-r12,

syncInfoReserved-r12 BIT STRING (SIZE (19)) OPTIONAL — Need OR

} OPTIONAL, — Need OR

rxParamsNCell-r12 SEQUENCE {

physCellId-r12 PhysCellId,

discSyncWindow-r12 ENUMERATED {w1, w2}

} OPTIONAL, — Need OR

…,

[[ syncTxPeriodic-r13 ENUMERATED {true} OPTIONAL — Need OR

]],

[[ syncOffsetIndicator-v1430 SL-OffsetIndicatorSync-v1430 OPTIONAL, — Need OR

gnss-Sync-r14 ENUMERATED {true} OPTIONAL — Need OR

]],

[[ syncOffsetIndicator2-r14 SL-OffsetIndicatorSync-r14 OPTIONAL, — Need OR

syncOffsetIndicator3-r14 SL-OffsetIndicatorSync-r14 OPTIONAL — Need OR

]],

[[ slss-TxDisabled-r15 ENUMERATED {true} OPTIONAL — Need OR

]]

}

SL-SyncConfigListNFreq-r13 ::= SEQUENCE (SIZE (1..maxSL-SyncConfig-r12)) OF SL-SyncConfigNFreq-r13

SL-SyncConfigListNFreqV2X-r14 ::= SEQUENCE (SIZE (1..maxSL-V2X-SyncConfig-r14)) OF SL-SyncConfigNFreq-r13

SL-SyncConfigNFreq-r13 ::= SEQUENCE {

asyncParameters-r13 SEQUENCE {

syncCP-Len-r13 SL-CP-Len-r12,

syncOffsetIndicator-r13 SL-OffsetIndicatorSync-r12,

slssid-r13 SLSSID-r12

} OPTIONAL, — Need OR

txParameters-r13 SEQUENCE {

syncTxParameters-r13 SL-TxParameters-r12,

syncTxThreshIC-r13 RSRP-RangeSL-r12,

syncInfoReserved-r13 BIT STRING (SIZE (19)) OPTIONAL, — Need OR

syncTxPeriodic-r13 ENUMERATED {true} OPTIONAL — Need OR

} OPTIONAL, — Need OR

rxParameters-r13 SEQUENCE {

discSyncWindow-r13 ENUMERATED {w1, w2}

} OPTIONAL, — Need OR

…,

[[ syncOffsetIndicator-v1430 SL-OffsetIndicatorSync-v1430 OPTIONAL, — Need OR

gnss-Sync-r14 ENUMERATED {true} OPTIONAL — Need OR

]],

[[ syncOffsetIndicator2-r14 SL-OffsetIndicatorSync-r14 OPTIONAL, — Need OR

syncOffsetIndicator3-r14 SL-OffsetIndicatorSync-r14 OPTIONAL — Need OR

]],

[[ slss-TxDisabled-r15 ENUMERATED {true} OPTIONAL — Need OR

]]

}

— ASN1STOP

SL-SyncConfig field descriptions

discSyncWindow

Indicates the synchronization window over which the UE expects that SLSS or discovery resources indicated by the pool configuration (see TS 36.213 [23], clause 14.4). The value w1 denotes 5 milliseconds. The value w2 denotes the length corresponding to normal cyclic prefix divided by 2.

gnss-Sync

if configured, the synchronization configuration is used for SLSS transmission/reception when the UE is synchronized to GNSS, by using slssid=0 and ignoring slssid-r12 configured. If not configured, the synchronization configuration is used for SLSS transmission/reception when the UE is synchronized to eNB, by using the configured slssid-r12.

slss-TxDisabled

Value TRUE indicates that the carrier, even though equipped with synchronisation resources, cannot be used as a synchronisation carrier frequency to transmit SLSS or PSBCH.

This parameter cannot be included in SystemInformationBlockType21 or SystemInformationBlockType26.

syncCP-Len

In case of V2X sidelink communications this field is always configured to normal.

syncInfoReserved

Reserved for future use.

syncOffsetIndicator

E-UTRAN should ensure syncOffsetIndicator is set to the same value as syncOffsetIndicator1 or syncOffsetIndicator2 in preconfigSync within SL-Preconfiguration, if configured. If syncOffsetIndicator-v1430 is configured, the UE shall ignore the field syncOffsetIndicator-r12. E-UTRAN should ensure syncOffsetIndicator is set to the same value as syncOffsetIndicator1 in v2x-CommPreconfigSync within SL-V2X-Preconfiguration, if configured. E-UTRAN should ensure syncOffsetIndicator2 is set to the same value as syncOffsetIndicator2 in v2x-CommPreconfigSync within SL-V2X-Preconfiguration, if configured. E-UTRAN should ensure syncOffsetIndicator3 is set to the same value as syncOffsetIndicator3 in v2x-CommPreconfigSync within SL-V2X-Preconfiguration, if configured. E-UTRAN should ensure all values in syncOffsetIndicator are same across all carrier frequencies configured for UEs performing V2X sidelink communication on multiple carrier frequencies. For SL-V2X-Preconfiguration, all values in syncOffsetIndicator should be same across all carrier frequencies configured for UEs performing V2X sidelink communication on multiple carrier frequencies.

syncTxPeriodic

Indicates whether in each discovery period in which UE transmits discovery, the UE transmits SLSS once or periodically (i.e. every 40ms). In the latter case (periodic) the UE also transmits the MasterInformationBlock-SL message alongside. E-UTRAN configures this field only for synchronisation configurations applicable for PS discovery.

syncTxThreshIC

Indicates the threshold used while in coverage. In case the RSRP measurement of the cell chosen for transmission of sidelink communication/ discovery announcements/ V2X sidelink communication, or of the cell used as reference for DL measurements and synchronization, is below the level indicated by this field, the UE may transmit SLSS (i.e. become synchronisation reference) when performing the corresponding sidelink transmission..

txParameters

Includes parameters relevant only for transmission. E-UTRAN includes the field in one entry per list, as included in commSyncConfig or discSyncConfig.

SL-TF-ResourceConfig

The IE SL-TF-ResourceConfig specifies a set of time/ frequency resources used for sidelink.

SL-TF-ResourceConfig information element

— ASN1START

SL-TF-ResourceConfig-r12 ::= SEQUENCE {

prb-Num-r12 INTEGER (1..100),

prb-Start-r12 INTEGER (0..99),

prb-End-r12 INTEGER (0..99),

offsetIndicator-r12 SL-OffsetIndicator-r12,

subframeBitmap-r12 SubframeBitmapSL-r12

}

SubframeBitmapSL-r12 ::= CHOICE {

bs4-r12 BIT STRING (SIZE (4)),

bs8-r12 BIT STRING (SIZE (8)),

bs12-r12 BIT STRING (SIZE (12)),

bs16-r12 BIT STRING (SIZE (16)),

bs30-r12 BIT STRING (SIZE (30)),

bs40-r12 BIT STRING (SIZE (40)),

bs42-r12 BIT STRING (SIZE (42))

}

SubframeBitmapSL-r14 ::= CHOICE {

bs10-r14 BIT STRING (SIZE (10)),

bs16-r14 BIT STRING (SIZE (16)),

bs20-r14 BIT STRING (SIZE (20)),

bs30-r14 BIT STRING (SIZE (30)),

bs40-r14 BIT STRING (SIZE (40)),

bs50-r14 BIT STRING (SIZE (50)),

bs60-r14 BIT STRING (SIZE (60)),

bs100-r14 BIT STRING (SIZE (100))

}

— ASN1STOP

SL-TF-ResourceConfig field descriptions

prb-Start, prb-End, prb-Num

Sidelink transmissions on a sub-frame can occur on PRB with index greater than or equal to prb-Start and less than prb-Start + prb-Num, and on PRB with index greater than prb-Endprb-Num and less than or equal to prb-End. Even for neighbouring cells, prb-Start and prb-End are relative to PRB #0 of the cell from which it was obtained. See TS 36.213 [23], clauses 14.1.3, 14.2.3 and 14.3.3.

subframeBitmap

Indicates the subframe bitmap indicating resources used for sidelink. For sidelink communication, E-UTRAN configures value bs40 for FDD and the following values for TDD: value bs42 for configuration0, value bs16 for configuration1, value bs8 for configuration2, value bs12 for configuration3, value bs8 for configuration4, value bs4 for configuration5 and value bs30 for configuration6. For V2X sidelink communication, E-UTRAN configures value bs16, bs20 or bs100 for FDD or Frame Structure Type 1 as defined in TS 36.211 [21],and the following values for TDD or Frame Structure Type 2 as defined in TS 36.211 [21]: value bs60 for configuration0, value bs40 for configuration1, value bs20 for configuration2, value bs30 for configuration3, value bs20 for configuration4, value bs10 for configuration5 and value bs50 for configuration6.

SL-TxPower

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

— ASN1START

SL-TxPower-r14 ::= CHOICE {

minusinfinity-r14 NULL,

txPower-r14 INTEGER (-41..31)

}

— ASN1STOP

SL-TypeTxSync

The IE SL-TypeTxSync indicates the synchronization reference type.

SL-TypeTxSync information element

— ASN1START

SL-TypeTxSync-r14 ::= ENUMERATED {gnss, enb, ue}

— ASN1STOP

SL-ThresPSSCH-RSRP-List

IE SL-ThresPSSCH-RSRP-List indicates a threshold used for sensing based UE autonomous resource selection (see TS 36.213 [23]). A resource is excluded if it is indicated or reserved by a decoded SCI and PSSCH RSRP in the associated data resource is above the threshold defined by IE SL-ThresPSSCH-RSRP-List.

SL-ThresPSSCH-RSRP-List information element

— ASN1START

SL-ThresPSSCH-RSRP-List-r14 ::= SEQUENCE (SIZE (64)) OF SL-ThresPSSCH-RSRP-r14

SL-ThresPSSCH-RSRP-r14 ::= INTEGER (0..66)

— ASN1STOP

SL-ThresPSSCH-RSRP-List field descriptions

SL-ThresPSSCH-RSRP

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-TxParameters

The IE SL-TxParameters identifies a set of parameters configured for sidelink transmission, used for communication, discovery and synchronisation.

SL-TxParameters information element

— ASN1START

SL-TxParameters-r12 ::= SEQUENCE {

alpha-r12 Alpha-r12,

p0-r12 P0-SL-r12

}

P0-SL-r12 ::= INTEGER (-126..31)

— ASN1STOP

SL-TxParameters field descriptions

alpha

Parameter(s): ,,,,,,, See TS 36.213 [23], clauses 14.1.1.5, 14.2.1.3, 14.3.1 and 14.4, where al0 corresponds to 0, al04 corresponds to value 0.4, al05 to 0.5, al06 to 0.6, al07 to 0.7, al08 to 0.8, al09 to 0.9 and al1 corresponds to 1. This field applies for sidelink power control.

p0

Parameter: ,,,,,,, see TS 36.213 [23], clauses 14.1.1.5, 14.2.1.3, 14.3.1 and 14.4, unit dBm.

SL-TxPoolIdentity

The IE SL-TxPoolIdentity identifies an individual pool entry configured for sidelink transmission, used for communication and discovery.

SL-TxPoolIdentity information element

— ASN1START

SL-TxPoolIdentity-r12 ::= INTEGER (1..maxSL-TxPool-r12)

SL-TxPoolIdentity-v1310 ::= INTEGER (maxSL-TxPool-r12Plus1-r13..maxSL-TxPool-r13)

SL-V2X-TxPoolIdentity-r14 ::= INTEGER (1..maxSL-V2X-TxPool-r14)

— ASN1STOP

SL-TxPoolToReleaseList

The IE SL-TxPoolToReleaseList is used to release one or more individual pool entries used for sidelink transmission, for communication and discovery.

SL-TxPoolToReleaseList information element

— ASN1START

SL-TxPoolToReleaseList-r12 ::= SEQUENCE (SIZE (1..maxSL-TxPool-r12)) OF SL-TxPoolIdentity-r12

SL-TxPoolToReleaseListExt-r13 ::= SEQUENCE (SIZE (1..maxSL-TxPool-v1310)) OF SL-TxPoolIdentity-v1310

— ASN1STOP

SL-V2X-ConfigDedicated

The IE SL-V2X-ConfigDedicated specifies the dedicated configuration information for V2X sidelink communication.

SL-V2X-ConfigDedicated information element

— ASN1START

SL-V2X-ConfigDedicated-r14 ::= SEQUENCE {

commTxResources-r14 CHOICE {

release NULL,

setup CHOICE {

scheduled-r14 SEQUENCE {

sl-V-RNTI-r14 C-RNTI,

mac-MainConfig-r14 MAC-MainConfigSL-r12,

v2x-SchedulingPool-r14 SL-CommResourcePoolV2X-r14 OPTIONAL, — Need ON

mcs-r14 INTEGER (0..31) OPTIONAL, — Need OR

logicalChGroupInfoList-r14 LogicalChGroupInfoList-r13

},

ue-Selected-r14 SEQUENCE {

— Pool for normal usage

v2x-CommTxPoolNormalDedicated-r14 SEQUENCE {

poolToReleaseList-r14 SL-TxPoolToReleaseListV2X-r14 OPTIONAL, — Need ON

poolToAddModList-r14 SL-TxPoolToAddModListV2X-r14 OPTIONAL, — Need ON

v2x-CommTxPoolSensingConfig-r14 SL-CommTxPoolSensingConfig-r14

OPTIONAL — Need ON

}

}

}

} OPTIONAL, — Need ON

v2x-InterFreqInfoList-r14 SL-InterFreqInfoListV2X-r14 OPTIONAL, — Need ON

thresSL-TxPrioritization-r14 SL-Priority-r13 OPTIONAL, — Need OR

typeTxSync-r14 SL-TypeTxSync-r14 OPTIONAL, — Need OR

cbr-DedicatedTxConfigList-r14 SL-CBR-CommonTxConfigList-r14 OPTIONAL, — Need OR

…,

[[ commTxResources-v1530 CHOICE {

release NULL,

setup CHOICE {

scheduled-v1530 SEQUENCE {

logicalChGroupInfoList-v1530 LogicalChGroupInfoList-v1530 OPTIONAL, — Need OR

mcs-r15 INTEGER (0..31) OPTIONAL — Need OR

},

ue-Selected-v1530 SEQUENCE {

v2x-FreqSelectionConfigList-r15 SL-V2X-FreqSelectionConfigList-r15 OPTIONAL –Need OR

}

}

} OPTIONAL, — Need ON

v2x-PacketDuplicationConfig-r15 SL-V2X-PacketDuplicationConfig-r15 OPTIONAL, — Need OR

syncFreqList-r15 SL-V2X-SyncFreqList-r15 OPTIONAL, — Need OR

slss-TxMultiFreq-r15 ENUMERATED {true} OPTIONAL — Need OR

]],

[[

slss-TxDisabled-r15 ENUMERATED {true} OPTIONAL — Need OR

]]

}

LogicalChGroupInfoList-v1530 ::= SEQUENCE (SIZE (1..maxLCG-r13)) OF SL-ReliabilityList-r15

SL-TxPoolToAddModListV2X-r14 ::= SEQUENCE (SIZE (1..maxSL-V2X-TxPool-r14)) OF SL-TxPoolToAddMod-r14

SL-TxPoolToAddMod-r14 ::= SEQUENCE {

poolIdentity-r14 SL-V2X-TxPoolIdentity-r14,

pool-r14 SL-CommResourcePoolV2X-r14

}

SL-TxPoolToReleaseListV2X-r14 ::= SEQUENCE (SIZE (1..maxSL-V2X-TxPool-r14)) OF SL-V2X-TxPoolIdentity-r14

— ASN1STOP

SL-V2X-ConfigDedicated field descriptions

cbr-DedicatedTxConfigList

Indicates the dedicated list of CBR range division and the list of PSCCH TX configurations available to configure congestion control to the UE for V2X sidelink communication.

logicalChGroupInfoList

Indicates for each logical channel group the list of associated priorities and reliabilities, used as specified in TS 36.321 [6], in order of increasing logical channel group identity. If E-UTRAN includes logicalChGroupInfoList-v1530, it includes the same number of entries, and listed in the same order, as in logicalChGroupInfoList–r14, and a logical channel group identity of the same entry in logicalChGroupInfoList-r14 and in logicalChGroupInfo-v1530 is associated with both the priorties (as in logicalChGroupInfoList-r14) and reliablities (as in logicalChGroupInfoList-v1530) of that entry. If logicalChGroupInfoList-v1530 is not included, this field indicates for each logical channel group the list of associated priorities.

mcs

Indicates the MCS as defined in TS 36.213 [23], clause 14.2.1. If not configured, the selection of MCS is up to UE implementation. If included, mcs-r14 corresponds to the MCS table in Table 8.6.1-1 with 64QAM indices overridden by 16QAM used for transmission on PSSCH. If included, mcs-r15 corresponds to both the MCS table in Table 8.6.1-1 in TS 36.213 [23] and the MCS table supporting 64QAM in Table 14.1.1-2 in TS 36.213 [23] used for transmission on PSSCH. If this field is present, E-UTRAN shall configure both mcs-r14 and mcs-r15.

scheduled

Indicates the configuration for the case E-UTRAN schedules the transmission resources based on sidelink specific BSR from the UE.

sl-V-RNTI

Indicates the RNTI used for DCI dynamically scheduling sidelink resources for V2X sidelink communication.

slss-TxDisabled

Value TRUE indicates that the primary carrier, even though equipped with synchronisation resources, cannot be used as a synchronisation carrier frequency to transmit SLSS or PSBCH.

thresSL-TxPrioritization

Indicates the threshold used to determine whether SL V2X transmission is prioritized over uplink transmission if they overlap in time (see TS 36.321 [6]). This value shall overwrite thresSL-TxPrioritization configured in SIB21 or SL-V2X-Preconfiguration if any.

typeTxSync

Indicates the prioritized synchronization type (i.e. eNB or GNSS) for performing V2X sidelink communication on PCell.

ue-Selected

Indicates the configuration for the case the UE selects the transmission resources from a pool of resources configured by E-UTRAN.

v2x-InterFreqInfoList

Indicates synchronization and resource allocation configurations of other carrier frequencies than the serving carrier frequency for V2X sidelink communication. For inter-carrier scheduled resource allocation, CIF=1 in DCI-5A corresponds to the first entry in this frequency list, CIF=2 corresponds to the second entry, and so on (see TS 36.213 [23]). CIF=0 in DCI-5A corresponds to the frequency where the DCI is received.

v2x-SchedulingPool

Indicates a pool of resources when E-UTRAN schedules Tx resources for V2X sidelink communications.

SL-V2X-FreqSelectionConfigList

The IE SL-V2X-FreqSelectionConfigList specifies the configuration information for carrier selection for V2X sidelink communication transmission using UE autonomous resource selection.

SL-V2X-FreqSelectionConfigList information element

— ASN1START

SL-V2X-FreqSelectionConfigList-r15 ::= SEQUENCE (SIZE (1..8)) OF SL-V2X-FreqSelectionConfig-r15

SL-V2X-FreqSelectionConfig-r15 ::= SEQUENCE {

priorityList-r15 SL-PriorityList-r13,

threshCBR-FreqReselection-r15 SL-CBR-r14 OPTIONAL, — Need OR

threshCBR-FreqKeeping-r15 SL-CBR-r14 OPTIONAL — Need OR

}

— ASN1STOP

SL-V2X-FreqSelectionConfig field descriptions

priorityList

Indicates the list of PPPP(s) which is associated with the configurations in threshCBR-FreqReselection and in threshCBR-FreqKeeping.

threshCBR-FreqReselection

Indicates the CBR threshold to determine whether the carrier frequency can be (re)selected for the transmission of V2X sidelink communication. See TS 36.321 [6].

threshCBR-FreqKeeping

Indicates the CBR threshold to determine whether the UE can keep using the carrier which was selected for the transmission of V2X sidelink communication. See TS 36.321 [6].

SL-V2X-PacketDuplicationConfig

The IE SL-V2X-PacketDuplicationConfig specifies the configuration information for sidelink packet duplication for V2X sidelink communication transmission.

SL-V2X-PacketDuplicationConfig information element

— ASN1START

SL-V2X-PacketDuplicationConfig-r15 ::= SEQUENCE {

threshSL-Reliability-r15 SL-Reliability-r15,

allowedCarrierFreqConfig-r15 SL-PPPR-Dest-CarrierFreqList-r15 OPTIONAL, — Need OR

}

SL-PPPR-Dest-CarrierFreqList-r15 ::= SEQUENCE (SIZE (1..maxSL-Dest-r12)) OF SL-PPPR-Dest-CarrierFreq

SL-PPPR-Dest-CarrierFreq ::= SEQUENCE {

destinationInfoList-r15 SL-DestinationInfoList-r12 OPTIONAL, — Need OR

allowedCarrierFreqList-r15 SL-AllowedCarrierFreqList-r15 OPTIONAL — Need OR

}

SL-AllowedCarrierFreqList-r15 ::= SEQUENCE {

allowedCarrierFreqSet1 SEQUENCE (SIZE (1..maxFreqV2X-r14)) OF ARFCN-ValueEUTRA-r9,

allowedCarrierFreqSet2 SEQUENCE (SIZE (1..maxFreqV2X-r14)) OF ARFCN-ValueEUTRA-r9

}

— ASN1STOP

SL-V2X-PacketDuplicationConfig field descriptions

allowedCarrierFreqList, allowedCarrierFreqSet1, allowedCarrierFreqSet2

Indicates, for V2X sidelink communication, the set of carrier frequencies applicable for the transmission of the MAC SDUs from the sidelink logical channels whose associated destination are included in destinationInfoList (see TS 36.321 [6]). If present, E-UTRAN shall ensure allowedCarrierFreqSet1 and allowedCarrierFreqSet2 do not include the same carrier frequency.

threshSL-Reliability

Indicates the reliability threshold used to determine whether sidelinik packet duplication is configured and activated for V2X sidelink communication transmission. See TS 36.323 [8] and TS 36.321 [6].

SL-V2X-SyncFreqList

The IE SL-V2X-SyncFreqList specifies the list of candidate synchronisation carrier frequencies used for V2X sidelink communication.

SL-V2X-SyncFreqList information element

— ASN1START

SL-V2X-SyncFreqList-r15 ::= SEQUENCE (SIZE (1..maxFreqV2X-r14)) OF ARFCN-ValueEUTRA-r9

— ASN1STOP

SL-ZoneConfig

The IE SL-ZoneConfig indicates zone configurations used for V2X sidelink communication.

SL-ZoneConfig information element

— ASN1START

SL-ZoneConfig-r14 ::= SEQUENCE {

zoneLength-r14 ENUMERATED { m5, m10, m20, m50, m100, m200, m500, spare1},

zoneWidth-r14 ENUMERATED { m5, m10, m20, m50, m100, m200, m500, spare1},

zoneIdLongiMod-r14 INTEGER (1..4),

zoneIdLatiMod-r14 INTEGER (1..4)

}

— ASN1STOP

SL-ZoneConfig field descriptions

zoneLength

Indicates the length of each geographic zone. Value m5 corresponds to 5 meters, m10 corresponds to 10 meters and so on.

zoneWidth

Indicates the width of each geographic zone. Value m5 corresponds to 5 meters, m10 corresponds to 10 meters and so on.

zoneIdLongiMod

Indicates the total number of zones that is configured with respect to longitude.

zoneIdLatiMod

Indicates the total number of zones that is configured with respect to latitude.