9 Specified and default radio configurations

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

Specified and default configurations are configurations of which the details are specified in the standard. Specified configurations are fixed while default configurations can be modified using dedicated signalling.

9.1 Specified configurations

9.1.1 Logical channel configurations

9.1.1.1 BCCH configuration

Parameters

Name

Value

Semantics description

Ver

PDCP configuration

N/A

RLC configuration

TM

MAC configuration

TM

NOTE: RRC will perform padding, if required due to the granularity of the TF signalling, as defined in 8.5.

9.1.1.2 CCCH configuration

Parameters

Name

Value

Semantics description

Ver

PDCP configuration

N/A

RLC configuration

TM

MAC configuration

Normal MAC headers are used

Logical channel configuration

priority

1

Highest priority

prioritisedBitRate

infinity

bucketSizeDuration

N/A

logicalChannelGroup

0

logicalChannelSR-Mask-r9

release

v920

9.1.1.3 PCCH configuration

Parameters

Name

Value

Semantics description

Ver

PDCP configuration

N/A

RLC configuration

TM

MAC configuration

TM

NOTE: RRC will perform padding, if required due to the granularity of the TF signalling, as defined in 8.5.

9.1.1.4 MCCH and MTCH configuration

Parameters

Name

Value

Semantics description

Ver

PDCP configuration

N/A

RLC configuration

UM

sn-FieldLength

size5

t-Reordering

0

9.1.1.5 SBCCH configuration

Parameters

Name

Value

Semantics description

Ver

PDCP configuration

N/A

RLC configuration

TM

MAC configuration

TM

NOTE: RRC will perform padding, if required due to the granularity of the TF signalling, as defined in 8.5.

9.1.1.6 STCH configuration

Parameters

Name

Value

Semantics description

Ver

PDCP configuration

discardTimer

Undefined

Up to UE implementation

pdcp-SN-Size

16

maxCID

15

profiles

t-Reordering (PDCP)

Undefined

Only used for V2X sidelink communication.
Selected by the receiving UE, up to UE implementation

V1520

RLC configuration

Uni-directional UM RLC

UM window size is set to 0

Uni-directional UM RLC

UM window size is set to 0 for sidelink communication

v1440

sn-FieldLength

5

logicalChannelIdentity

Undefined

Selected by the transmitting UE, up to UE implementation

Logical channel configuration

priority

Undefined

Selected by the transmitting UE, up to UE implementation

prioritisedBitRate

Undefined

Selected by the transmitting UE, up to UE implementation

bucketSizeDuration

Undefined

Selected by the transmitting UE, up to UE implementation

logicalChannelGroup

3

t-Reordering

Undefined

Only used for V2X sidelink communication.
Selected by the receiving UE, up to UE implementation

v1440

MAC configuration

9.1.1.7 SC-MCCH and SC-MTCH configuration

Parameters

Name

Value

Semantics description

Ver

PDCP configuration

N/A

RLC configuration

UM

sn-FieldLength

size5

t-Reordering

0

9.1.1.8 BR-BCCH configuration

Parameters

Name

Value

Semantics description

Ver

PDCP configuration

N/A

RLC configuration

TM

MAC configuration

TM

NOTE: RRC will perform padding, if required due to the granularity of the TF signalling, as defined in 8.5.

9.1.2 SRB configurations

9.1.2.1 SRB1

Parameters

Name

Value

Semantics description

Ver

RLC configuration

logicalChannelIdentity

1

9.1.2.1a SRB1bis

Parameters

Name

Value

Semantics description

Ver

RLC configuration

logicalChannelIdentity

3

9.1.2.2 SRB2

Parameters

Name

Value

Semantics description

Ver

RLC configuration

logicalChannelIdentity

2

9.1.2.3 SRB4

Parameters

Name

Value

Semantics description

Ver

RLC configuration

logicalChannelIdentity

4

9.2 Default radio configurations

The following clauses only list default values for REL-8 parameters included in protocol version v8.5.0. For all fields introduced in a later protocol version, the default value is "released" unless explicitly specified otherwise. If UE is to apply default configuration while it is configured with some critically extended fields, the UE shall apply the original version with only default values. For the following fields, introduced in a protocol version later than v8.5.0, the default corresponds with "value not applicable":

codeBookSubsetRestriction-v920;

pmi-RI-Report;

NOTE 1: Value "N/A" indicates that the UE does not apply a specific value (i.e. upon switching to a default configuration, E-UTRAN can not assume the UE keeps the previously configured value). This implies that E-UTRAN needs to configure a value before invoking the related functionality.

NOTE 2: In general, the signalling should preferably support a "release" option for fields introduced after v8.5.0. The "value not applicable" should be used restrictively, mainly limited to for fields which value is relevant only if another field is set to a value other than its default.

9.2.1 SRB configurations

9.2.1.1 SRB1

Parameters

Name

Value

NB-IoT

Semantics description

Ver

RLC configuration CHOICE

am

am

ul-RLC-Config

>t-PollRetransmit

>pollPDU

>pollByte

>maxRetxThreshold

ms45

infinity

infinity

t4

ms25000

N/A

N/A

t4

dl-RLC-Config

>t-Reordering

>t-StatusProhibit

>enableStatusReportSN-Gap

ms35

ms0

N/A

released

N/A

disabled

Logical channel configuration

priority

1

1

Highest priority

prioritisedBitRate

infinity

N/A

bucketSizeDuration

N/A

N/A

logicalChannelGroup

0

N/A

logicalChannelSR-Prohibit

N/A

TRUE

9.2.1.2 SRB2

Parameters

Name

Value

Semantics description

Ver

RLC configuration CHOICE

am

ul-RLC-Config

>t-PollRetransmit

>pollPDU

>pollByte

>maxRetxThreshold

ms45

infinity

infinity

t4

dl-RLC-Config

>t-Reordering

>t-StatusProhibit

ms35

ms0

Logical channel configuration

priority

3

prioritisedBitRate

infinity

bucketSizeDuration

N/A

logicalChannelGroup

0

9.2.2 Default MAC main configuration

Parameters

Name

Value

NB-IoT

Semantics description

Ver

MAC main configuration

maxHARQ-tx

n5

N/A

periodicBSR-Timer

infinity

pp8

retxBSR-Timer

sf2560

infinity

ttiBundling

FALSE

N/A

drx-Config

release

N/A

phr-Config

release

N/A

9.2.3 Default semi-persistent scheduling configuration

SPS-Config

>sps-ConfigDL

>sps-ConfigUL

release

release

9.2.4 Default physical channel configuration

Parameters (not applicable for NB-IoT)

Name

Value

Semantics description

Ver

PDSCH-ConfigDedicated

>p-a

dB0

PUCCH-ConfigDedicated

>tdd-AckNackFeedbackMode

>ackNackRepetition

bundling

release

Only valid for TDD mode

PUSCH-ConfigDedicated

>betaOffset-ACK-Index

>betaOffset-RI-Index

>betaOffset-CQI-Index

10

12

15

UplinkPowerControlDedicated

>p0-UE-PUSCH

>deltaMCS-Enabled

>accumulationEnabled

>p0-UE-PUCCH

>pSRS-Offset

>filterCoefficient

0

en0 (disabled)

TRUE

0

7

fc4

tpc-pdcch-ConfigPUCCH

release

tpc-pdcch-ConfigPUSCH

release

CQI-ReportConfig

>CQI-ReportPeriodic

>cqi-ReportModeAperiodic

>nomPDSCH-RS-EPRE-Offset

release

N/A

N/A

SoundingRS-UL-ConfigDedicated

release

AntennaInfoDedicated

>transmissionMode

>codebookSubsetRestriction

>ue-TransmitAntennaSelection

tm1, tm2

N/A

release

If the number of PBCH antenna ports is one, tm1 is used as default; otherwise tm2 is used as default

SchedulingRequestConfig

release

Parameters applicable for NB-IoT

Name

Value

Semantics description

Ver

NPUSCH-ConfigDedicated-NB

>ack-NACK-NumRepetitions

>npusch-AllSymbols

N/A

TRUE

UplinkPowerControlDedicated

>p0-UE-NPUSCH

0

9.2.5 Default values timers and constants

Parameters

Name

Value

Semantics description

Ver

t310

ms1000

n310

n1

t311

ms1000

n311

n1

9.3 Sidelink pre-configured parameters

9.3.1 Specified parameters

This clause only list parameters which value is specified in the standard.

Parameters

Name

Value

Semantics description

Ver

preconfigSync

>syncTxParameters

>>alpha

0

preconfigComm

>sc-TxParameters

>>alpha

>dataTxParameters

>>alpha

0

0

v2x-CommPreconfigSync

>syncTxParameters

>>alpha

0

v2x-CommTxPoolList, p2x-CommTxPoolList

>dataTxParameters

>>alpha

0

9.3.2 Pre-configurable parameters

This ASN.1 segment is the start of the E‑UTRA definitions of pre-configured sidelink parameters.

NOTE 1: Upper layers are assumed to provide a set of pre-configured parameters that are valid at the current UE location if any, see TS 24.334 [69], clause 10.2.

— ASN1START

EUTRA-Sidelink-Preconf DEFINITIONS AUTOMATIC TAGS ::=

BEGIN

IMPORTS

AdditionalSpectrumEmission,

AdditionalSpectrumEmission-v10l0,

ARFCN-ValueEUTRA-r9,

FilterCoefficient,

maxCBR-Level-r14,

maxCBR-Level-1-r14,

maxFreq,

maxFreqV2X-r14,

maxSL-TxPool-r12,

maxSL-CommRxPoolPreconf-v1310,

maxSL-CommTxPoolPreconf-v1310,

maxSL-DiscRxPoolPreconf-r13,

maxSL-DiscTxPoolPreconf-r13,

maxSL-V2X-CBRConfig2-r14,

maxSL-V2X-CBRConfig2-1-r14,

maxSL-V2X-RxPoolPreconf-r14,

maxSL-V2X-TxConfig2-r14,

maxSL-V2X-TxConfig2-1-r14,

maxSL-V2X-TxPoolPreconf-r14,

MCS-PSSCH-Range-r15,

P-Max,

ReselectionInfoRelay-r13,

SL-AnchorCarrierFreqList-V2X-r14,

SL-CBR-Levels-Config-r14,

SL-CBR-PSSCH-TxConfig-r14,

SL-CommTxPoolSensingConfig-r14,

SL-CP-Len-r12,

SL-HoppingConfigComm-r12,

SL-OffsetIndicator-r12,

SL-OffsetIndicatorSync-r12,

SL-OffsetIndicatorSync-v1430,

SL-PeriodComm-r12,

RSRP-RangeSL3-r12,

SL-MinT2ValueList-r15,

SL-PriorityList-r13,

SL-TF-ResourceConfig-r12,

SL-TRPT-Subset-r12,

SL-TxParameters-r12,

SL-ZoneConfig-r14,

P0-SL-r12,

TDD-ConfigSL-r12,

SubframeBitmapSL-r14,

SL-P2X-ResourceSelectionConfig-r14,

SL-RestrictResourceReservationPeriodList-r14,

SL-SyncAllowed-r14,

SL-OffsetIndicatorSync-r14,

SL-Priority-r13,

SL-V2X-FreqSelectionConfigList-r15,

SL-V2X-PacketDuplicationConfig-r15,

SL-V2X-SyncFreqList-r15

FROM EUTRA-RRC-Definitions;

— ASN1STOP

SL-Preconfiguration

The IE SL-Preconfiguration includes the sidelink pre-configured parameters.

SL-Preconfiguration information elements

— ASN1START

SL-Preconfiguration-r12 ::= SEQUENCE {

preconfigGeneral-r12 SL-PreconfigGeneral-r12,

preconfigSync-r12 SL-PreconfigSync-r12,

preconfigComm-r12 SL-PreconfigCommPoolList4-r12,

…,

[[ preconfigComm-v1310 SEQUENCE {

commRxPoolList-r13 SL-PreconfigCommRxPoolList-r13,

commTxPoolList-r13 SL-PreconfigCommTxPoolList-r13 OPTIONAL

} OPTIONAL,

preconfigDisc-r13 SEQUENCE {

discRxPoolList-r13 SL-PreconfigDiscRxPoolList-r13,

discTxPoolList-r13 SL-PreconfigDiscTxPoolList-r13 OPTIONAL

} OPTIONAL,

preconfigRelay-r13 SL-PreconfigRelay-r13 OPTIONAL

]]

}

SL-PreconfigGeneral-r12 ::= SEQUENCE {

— PDCP configuration

rohc-Profiles-r12 SEQUENCE {

profile0x0001-r12 BOOLEAN,

profile0x0002-r12 BOOLEAN,

profile0x0004-r12 BOOLEAN,

profile0x0006-r12 BOOLEAN,

profile0x0101-r12 BOOLEAN,

profile0x0102-r12 BOOLEAN,

profile0x0104-r12 BOOLEAN

},

— Physical configuration

carrierFreq-r12 ARFCN-ValueEUTRA-r9,

maxTxPower-r12 P-Max,

additionalSpectrumEmission-r12 AdditionalSpectrumEmission,

sl-bandwidth-r12 ENUMERATED {n6, n15, n25, n50, n75, n100},

tdd-ConfigSL-r12 TDD-ConfigSL-r12,

reserved-r12 BIT STRING (SIZE (19)),

…,

[[ additionalSpectrumEmission-v1440 AdditionalSpectrumEmission-v10l0 OPTIONAL

]]

}

SL-PreconfigSync-r12 ::= SEQUENCE {

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

syncOffsetIndicator1-r12 SL-OffsetIndicatorSync-r12,

syncOffsetIndicator2-r12 SL-OffsetIndicatorSync-r12,

syncTxParameters-r12 P0-SL-r12,

syncTxThreshOoC-r12 RSRP-RangeSL3-r12,

filterCoefficient-r12 FilterCoefficient,

syncRefMinHyst-r12 ENUMERATED {dB0, dB3, dB6, dB9, dB12},

syncRefDiffHyst-r12 ENUMERATED {dB0, dB3, dB6, dB9, dB12, dBinf},

…,

[[ syncTxPeriodic-r13 ENUMERATED {true} OPTIONAL

]]

}

SL-PreconfigCommPoolList4-r12 ::= SEQUENCE (SIZE (1..maxSL-TxPool-r12)) OF SL-PreconfigCommPool-r12

SL-PreconfigCommRxPoolList-r13 ::= SEQUENCE (SIZE (1..maxSL-CommRxPoolPreconf-v1310)) OF SL-PreconfigCommPool-r12

SL-PreconfigCommTxPoolList-r13 ::= SEQUENCE (SIZE (1..maxSL-CommTxPoolPreconf-v1310)) OF SL-PreconfigCommPool-r12

SL-PreconfigCommPool-r12 ::= SEQUENCE {

— This IE is same as SL-CommResourcePool with rxParametersNCell absent

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

sc-Period-r12 SL-PeriodComm-r12,

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

sc-TxParameters-r12 P0-SL-r12,

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

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

dataHoppingConfig-r12 SL-HoppingConfigComm-r12,

dataTxParameters-r12 P0-SL-r12,

trpt-Subset-r12 SL-TRPT-Subset-r12,

…,

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

]]

}

SL-PreconfigDiscRxPoolList-r13 ::= SEQUENCE (SIZE (1..maxSL-DiscRxPoolPreconf-r13)) OF SL-PreconfigDiscPool-r13

SL-PreconfigDiscTxPoolList-r13 ::= SEQUENCE (SIZE (1..maxSL-DiscTxPoolPreconf-r13)) OF SL-PreconfigDiscPool-r13

SL-PreconfigDiscPool-r13 ::= SEQUENCE {

— This IE is same as SL-DiscResourcePool with rxParameters absent

cp-Len-r13 SL-CP-Len-r12,

discPeriod-r13 ENUMERATED {rf4, rf6, rf7, rf8, rf12, rf14, rf16, rf24, rf28,

rf32, rf64, rf128, rf256, rf512, rf1024, spare},

numRetx-r13 INTEGER (0..3),

numRepetition-r13 INTEGER (1..50),

tf-ResourceConfig-r13 SL-TF-ResourceConfig-r12,

txParameters-r13 SEQUENCE {

txParametersGeneral-r13 P0-SL-r12,

txProbability-r13 ENUMERATED {p25, p50, p75, p100}

} OPTIONAL,

}

SL-PreconfigRelay-r13 ::= SEQUENCE {

reselectionInfoOoC-r13 ReselectionInfoRelay-r13

}

— ASN1STOP

SL-Preconfiguration field descriptions

carrierFreq

Indicates the carrier frequency for out of coverage sidelink communication and sidelink discovery. In case of FDD it is uplink carrier frequency and the corresponding downlink frequency can be determined from the default TX-RX frequency separation defined in TS 36.101 [42], table 5.7.3-1.

additionalSpectrumEmission

The UE requirements related to IE AdditionalSpectrumEmission are defined in TS 36.101 [42], clause 6.2.4. If additionalSpectrumEmissionExt-r14 is configured, the UE only considers additionalSpectrumEmissionExt-r14 (and ignores additionalSpectrumEmission-r12).

commRxPoolList

Indicates a list of reception pools for sidelink communication in addition to the resource pools indicated by preconfigComm.

commTxPoolList

Indicates a list of transmission pools for sidelink communication in addition to the first resource pool within preconfigComm.

preconfigComm

Indicates a list of resource pools. The first resource pool in the list is used for both reception and transmission of sidelink communication. The other resource pools, if present, are only used for reception of sidelink communication.

syncRefDiffHyst

Hysteresis when evaluating a SyncRef UE using relative comparison. Value dB0 corresponds to 0 dB, dB3 to 3 dB and so on, value dBinf corresponds to infinite dB.

syncRefMinHyst

Hysteresis when evaluating a SyncRef UE using absolute comparison. Value dB0 corresponds to 0 dB, dB3 to 3 dB and so on.

NOTE 1: The network may configure one or more of the reception only resource pools in preconfigComm to cover reception from in coverage UEs using scheduled resource allocation. For such a resource pool the network should set all bits of subframeBitmap to 1 and offsetIndicator to indicate the subframe immediately following the sidelink control information.

NOTE 2: The network should ensure that the resources defined by the first entry in preconfigComm (used for transmission by an out of coverage UE) do not overlap with those of the pool(s) covering scheduled transmissions by in coverage UEs. Furthermore, the network should ensure that for none of the entries in preconfigComm the resources defined by sc-TF-ResourceConfig overlap.

SL-V2X-Preconfiguration

The IE SL-V2X-Preconfiguration includes the sidelink pre-configured parameters used for V2X sidelink communication.

SL-V2X-Preconfiguration information elements

— ASN1START

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

v2x-PreconfigFreqList-r14 SL-V2X-PreconfigFreqList-r14,

anchorCarrierFreqList-r14 SL-AnchorCarrierFreqList-V2X-r14 OPTIONAL,

cbr-PreconfigList-r14 SL-CBR-PreconfigTxConfigList-r14 OPTIONAL,

…,

[[ v2x-PacketDuplicationConfig-r15 SL-V2X-PacketDuplicationConfig-r15 OPTIONAL,

syncFreqList-r15 SL-V2X-SyncFreqList-r15 OPTIONAL,

slss-TxMultiFreq-r15 ENUMERATED {true} OPTIONAL,

v2x-TxProfileList-r15 SL-V2X-TxProfileList-r15 OPTIONAL

]]

}

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

cbr-RangeCommonConfigList-r14 SEQUENCE (SIZE (1..maxSL-V2X-CBRConfig2-r14)) OF SL-CBR-Levels-Config-r14,

sl-CBR-PSSCH-TxConfigList-r14 SEQUENCE (SIZE (1..maxSL-V2X-TxConfig2-r14)) OF SL-CBR-PSSCH-TxConfig-r14

}

SL-V2X-PreconfigFreqList-r14 ::= SEQUENCE (SIZE (1..maxFreqV2X-r14)) OF SL-V2X-PreconfigFreqInfo-r14

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

v2x-CommPreconfigGeneral-r14 SL-PreconfigGeneral-r12,

v2x-CommPreconfigSync-r14 SL-PreconfigV2X-Sync-r14 OPTIONAL,

v2x-CommRxPoolList-r14 SL-PreconfigV2X-RxPoolList-r14,

v2x-CommTxPoolList-r14 SL-PreconfigV2X-TxPoolList-r14,

p2x-CommTxPoolList-r14 SL-PreconfigV2X-TxPoolList-r14,

v2x-ResourceSelectionConfig-r14 SL-CommTxPoolSensingConfig-r14 OPTIONAL,

zoneConfig-r14 SL-ZoneConfig-r14 OPTIONAL,

syncPriority-r14 ENUMERATED {gnss, enb},

thresSL-TxPrioritization-r14 SL-Priority-r13 OPTIONAL,

offsetDFN-r14 INTEGER (0..1000) OPTIONAL,

…,

[[ v2x-FreqSelectionConfigList-r15 SL-V2X-FreqSelectionConfigList-r15 OPTIONAL

]]

}

SL-PreconfigV2X-RxPoolList-r14 ::= SEQUENCE (SIZE (1..maxSL-V2X-RxPoolPreconf-r14)) OF SL-V2X-PreconfigCommPool-r14

SL-PreconfigV2X-TxPoolList-r14 ::= SEQUENCE (SIZE (1..maxSL-V2X-TxPoolPreconf-r14)) OF SL-V2X-PreconfigCommPool-r14

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

— This IE is same as SL-CommResourcePoolV2X with rxParametersNCell absent

sl-OffsetIndicator-r14 SL-OffsetIndicator-r12 OPTIONAL,

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,

dataTxParameters-r14 P0-SL-r12,

zoneID-r14 INTEGER (0..7) OPTIONAL,

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

cbr-pssch-TxConfigList-r14 SL-CBR-PPPP-TxPreconfigList-r14 OPTIONAL,

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

syncAllowed-r14 SL-SyncAllowed-r14 OPTIONAL,

restrictResourceReservationPeriod-r14 SL-RestrictResourceReservationPeriodList-r14 OPTIONAL,

…,

[[ sl-MinT2ValueList-r15 SL-MinT2ValueList-r15 OPTIONAL,

cbr-pssch-TxConfigList-v1530 SL-CBR-PPPP-TxPreconfigList-v1530 OPTIONAL

]]

}

SL-PreconfigV2X-Sync-r14 ::= SEQUENCE {

syncOffsetIndicators-r14 SL-V2X-SyncOffsetIndicators-r14,

syncTxParameters-r14 P0-SL-r12,

syncTxThreshOoC-r14 RSRP-RangeSL3-r12,

filterCoefficient-r14 FilterCoefficient,

syncRefMinHyst-r14 ENUMERATED {dB0, dB3, dB6, dB9, dB12},

syncRefDiffHyst-r14 ENUMERATED {dB0, dB3, dB6, dB9, dB12, dBinf},

…,

[[ slss-TxDisabled-r15 ENUMERATED {true} OPTIONAL

]]

}

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

syncOffsetIndicator1-r14 SL-OffsetIndicatorSync-r14,

syncOffsetIndicator2-r14 SL-OffsetIndicatorSync-r14,

syncOffsetIndicator3-r14 SL-OffsetIndicatorSync-r14 OPTIONAL

}

SL-CBR-PPPP-TxPreconfigList-r14 ::= SEQUENCE (SIZE (1..8)) OF SL-PPPP-TxPreconfigIndex-r14

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

priorityThreshold-r14 SL-Priority-r13,

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

cbr-ConfigIndex-r14 INTEGER(0..maxSL-V2X-CBRConfig2-1-r14),

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

}

Tx-PreconfigIndex-r14 ::= INTEGER(0..maxSL-V2X-TxConfig2-1-r14)

SL-CBR-PPPP-TxPreconfigList-v1530 ::= SEQUENCE (SIZE (1..8)) OF SL-PPPP-TxPreconfigIndex-v1530

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

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

}

SL-V2X-TxProfileList-r15 ::= SEQUENCE (SIZE (1..256)) OF SL-V2X-TxProfile-r15

SL-V2X-TxProfile-r15 ::= ENUMERATED {

rel14, rel15, spare6, spare5, spare4,

spare3, spare2, spare1, …}

END

— ASN1STOP

SL-V2X-Preconfiguration field descriptions

adjacencyPSCCH-PSSCH

Indicates whether a UE always transmits PSCCH and PSSCH in adjacent RBs (indicated by TRUE) or it may transmit PSCCH and PSSCH in non-adjacent RBs (indicated by FALSE). This parameter appears only when a pool is configured such that a UE transmits PSCCH and the associated PSSCH in the same subframe.

anchorCarrierFreqList

Indicates carrier frequencies which may include inter-carrier resource configuration for V2X sidelink communication.

cbr-PreconfigList

Indicates the preconfigured list of CBR ranges and the list of PSSCH transmission configurations available to configure congestion control to the UE for V2X sidelink communication.

cbr-pssch-TxConfigList

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

numSubchannel

Indicates the number of subchannels in the corresponding resource pool.

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.

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.

sizeSubchannel

Indicates the number of PRBs of each subchannel in the corresponding resource pool. The value n5 denotes 5 PRBs; n6 denotes 6 PRBs and so on. The values n5, n6, n10, n15, n20, n25, n50, n75 and n100 apply in the case of adjacencyPSCCH-PSSCH set to TRUE; the values n4, n5, n6, n8, n9, n10, n12, n15, n16, n18, n20, n30, n48, n72 and n96 apply in the case of adjacencyPSCCH-PSSCH set to FALSE.

sl-OffsetIndicator

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

startRB-Subchannel

Indicates the lowest RB index of the subchannel with the lowest index.

startRB-PSCCH-Pool

Indicates the lowest RB index of the PSCCH pool.

syncAllowed

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

syncPriority

Indicates the synchronization priority order. In case the UE does not detect any cell which configures synchronization configuration on the carrier frequency in anchorCarrierFreqList, if this field is set to gnss, the UE shall prioritize GNSS over the UE directly synchronized to eNB; if this field is set to enb, the UE shall prioritize the UE directly synchronized to eNB over GNSS.

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]).

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.

v2x-CommRxPoolList

Indicates a list of reception pools for V2X sidelink communication.

v2x-CommTxPoolList

Indicates a list of transmission pools for V2X sidelink communication.

v2x-ResourceSelectionConfig

Indicates V2X sidelink communication configurations used for UE autonomous resource selection.

v2x-TxProfileList

Indicates for each Tx profile the corresponding transmission format, used as specified in TS 36.321 [6], in order of increasing Tx profile pointer identities. For each entry, Value REL14 indicates that the UE shall use Release 14 compatible format (i.e. using MCS table in Table 8.6.1-1 with 64 QAM indices overridden by 16QAM in TS 36.213 [23] and not Rel-15 feature) to transmit the corresponding V2X packet. Value REL15 indicates that the UE shall use Release 15 format (i.e. using rate matching, TBS scaling, MCS table in Table 8.6.1 and, if applicable, the MCS indices supporting 64QAM in Table 8.6.1 and Table 14.1.1-2 in TS 36.213 [23]) to transmit the corresponding V2X packet. If v2x-TxProfileList is not configured by upper layers, the UE shall use Release 14 compatible format to transmit the corresponding V2X packet.

zoneConfig

Indicates zone configurations used for V2X sidelink communication in 5.10.13.2.

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-CommRxPoolList and p2x-CommTxPoolList in SL-V2X-PreconfigFreqInfo.