5G技术培训MTR1913NRSystem Constants1.docx
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5G技术培训MTR1913NRSystem Constants1.docx
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5G技术培训MTR1913NRSystemConstants1
UPrevision:
CXP2010045_5-R17B31
Date:
SatMar3001:
21:
28CET2019
ClassificationFile:
/proj/rbs-g2-tmp/fem051/UpData/CXP2010045_5/R17B31/UP/rcSysConstClassifiedLm/bin/sysconst_NrClassifiedSCsRc.txt
Id
Name
Description
RC2
extEnbRemoveTime
NWIFSystemConstantforAutomaticMORemoval
RC5
termpointToGnbduRemoveTime
NWIFSystemConstant.TimeinminutesforautomaticremovalofanunusedTermPointToGNBDUMO.
RC13
carrierAggregation
Enable/disableNRCarrierAggregationofmax4CC0=Disabled1=Enabled
RC14
pdcpOutOfOrderDelivery
SwitchbetweenusingpdcpoutOfOrderDelivery0=pdcpOutOfOrderDeliveryfalse1=pdcpUutOfOrderDeliverytrue
ClassificationFile:
/proj/rbs-g2-tmp/fem051/UpData/CXP2010045_5/R17B31/UP/ppSysConstClassifiedLm/bin/sysconst_ClassifiedSCsPp.txt
Id
Name
Description
PP1
ppLinkInactivitySupervisionPeriod
Thetimeoutvaluetousewhensupervisinginactivelinksbeforeremovingthem.
PP10
nrDlpdcpSpsTargetTimeMs
ReplacedbydlPdcpSpsTargetTimeNranddlPdcpSpsTargetTimeLte
PP11
dlpdcpSpsLowPduqKb
Theflowcontrollowpduqueuethreshold.IfthePDUqueue(thatisthedatatransmittedtoRLCbutnotyetacknowledgedbytheUE)isshorterthanthisflowcontrolwillsetadefaultbitrate,evenifradiothroughputislow.
PP12
dlpdcpSpsPeriod
Theperiodinmillisecondsbetweenflowcontrolbitratepolicyupdates.Itshouldbelargeenoughsothatnewfeedbackhasarrivedeveryperiod.Smallervaluemeansmoreaccurateflowcontrol.ItshouldnotbesettoavaluelowerthantStatusProhibitDlonanyofthelegs.
PP15
dlpdcpSpsThresholdTimeMs
Inputparametertocalculatethresholdtoactivateflowcontrolforagivenbearer.Theageoftheoldestunacknowledgedpacketforabearerinmillisecondsiscomparedto(dlpdcpSpsThresholdTimeMs+dlpdcpSpsLinkTimeFactor*measuredC5URTT).
PP16
dlpdcpSpsLinkTimeFactor
Inputparametertocalculateactivationthresholdandtargetbufferdepthforflowcontrol.TheC5Ulinkdelayismultipliedbythisfactorandaddedbothtotheactivationthresholdandbufferdepthtargetforflowcontrol.Thisvalueismultipliedwith1/100beforeappliedtothealgorithm.
PP17
dlpdcpSpsErrorGainFactor
InputparametertoFCalgorithmtomultiplyErrorGainbeforeBSSdecision.Thisvalueismultipliedwith1/100beforeappliedtothealgorithm.
PP18
dlpdcpSpsInitialLinkLatency
Beforeanylinklatencyestimationhasoccurred,thisvaluewillbeusedinstead.Linklatencyishalfround-triptime.
PP19
dlpdcpDcAggregationMode
Ataggregation,decideswhatalgorithDLPDCPusestodistributepacketsbetweenthelegs.Availablevaluesare0(NRonly),1(LTEonly),4(leastlatency),5(NRonlynoFC),6(leastlatency,transmitted),7(NRonly,transmitted)Seecomment!
PP43
dlpdcpEnableRetransmitAtLteNrSwitch
EnableretransmitwhenswitchingfromLTEtoNR.
PP44
dlpdcpBssPrioNr
PriorityweightforNRlegatlegselection.PrioweightforLTElegwillbe(100-dlpdcpBssPrioNr).
PP45
dlpdcpBssSchedBurstSize
Decidesnumberofkilobytesallocatedtoalegatthesameschedulingoccasionbeforeanewlegselectionwillbemade.
PP46
dlpdcpSpsWirelessBitRateLevel
Wirelessratelevelatwhichtheminimumwirelessrate(asspecifiedinthealgorithm)willnotbeused.
PP47
dlpdcpSpsMinWirelessBitRate
MinimumwirelessbitratethatisusedintheSPSalgorithmgivencertainconditions;isusedunlessoverriddenbythedlpdcpSpsMinWirelessBitRateAggLteparameter.
PP48
dlpdcpSpsMinWirelessBitRateAggLte
MinimumwirelessbitratethatisusedinsteadofthedlPdcpSpsMinWirelessBitRateparameterinthecasewhenaggregationisactivefortheLTEleg.
PP49
dlpdcpSpsWirelessRateMultFactor
AfactorappliedtothewirelessratewhencalculatingtheSPSrate.
PP50
dlpdcpSpsMinWirelessBitRateAggNr
MinimumwirelessbitratethatisusedinsteadofthedlPdcpSpsMinWirelessBitRateparameterinthecasewhenaggregationisactivefortheNRleg.
PP53
ppE6BearerWithoutBb
CurentlyE6isnotpublishedinSDSuntilallperipheralinterfaces(nruemi,tsigtpu,bearerresourcecoordination,etc.)areestablished.Ifthissystemconstantisset,ppBearerCtrlwillnotwaitforinterfacestobeestablishedandpublisingofE6bearerinSDSwillhappenregardlessofBBconnectionstatus.Shouldnotbeusedinproduction.It'sjustforinternaluses
PP54
dlpdcpSourceHoFwdTimeout
MaximumwaittimeforpacketforwardingendmarkerontargetgNB
PP55
dlpdcpTargetHoFwdTimeout
MaximumwaittimeforpacketforwardingendmarkerontargetgNB
PP56
dlpdcpX2ReceptionTimeThrsh
MaxtimethreshholdsincelastX2packetreception.AfterexpiryitisassumednomoreforwardedpacketswillbereceivedoverX2
PP58
eNbVendorIdentity
SettingeNbVendorIdentityto{ericsson}activatesEricssonproprietaryfeaturesandflowcontrolwhile{other}resultsinfeaturesandfunctionalityasagreedwithothervendors.
ClassificationFile:
/proj/rbs-g2-tmp/fem051/UpData/CXP2010045_5/R17B31/UP/rpcSysConstClassifiedLm/bin/sysconst_NrClassifiedSCsRp.txt
Id
Name
Description
RP3
raResponseWindowSize
DurationofRAresponsewindowvaluesinsubframes
RP4
ulGainCellEdge
Defaultgainvaluetobeusedbeforeanymeasurementsofuplinkgainareavailable.
RP14
scSlotOffsetSelection
SystemconstanttocontrolselectionofslotoffsetsusedinschedulingincludingK1,offsetinslotfromPDSCHtoHARQfeedbackonPUCCH,andK2,offsetinslotfromULgrantinDCItoPUSCH.0:
smalloffset,1:
middleoffset,2:
largeoffset
RP15
maxRrcConnectedUsers
NumberofsimultaneouslysupportedUEsinstateRRC_Connectedpercell.
RP16
commonSrPeriodicity
SystemconstanttocontroltheSchedulingRequestperiodicity.
RP17
pucchTdmModeEnabled
1-ThissystemconstanthelpstocontroltheUEconfigurationsothatnoUCIdataistransmittedonPUSCH.IfEnabled(pucchTdmModeEnabled=1)thenPUSCHandPUCCHareseparatedintime;PUSCHonsymbols0-9andPUCCHonsymbols10-13asrepresentedintheright-handsidescenarioherebelow.Whenthesystemconstantissetto0(disabled),bothPUSCHandPUCCHstartonsymbol0.Thisisshowninthescenarioontheleft-handsideherebelow.pucchTdmModeEnabled=0___________________________|||PUCCH||___________________________||||||PUSCH||||___________________________||||PUCCH||___________________________|startsymbol=0pucchTdmModeEnabled=1___________________________||||PUSCH|PUCCH|||_____________|||||||PUSCH|EMPTY!
|||||_____________|||||PUSCH|PUCCH||_____________|_____________|startsymbol=010So,maxRrcConnectedUsers,nrOfSymbolsForLongPucchandnrOfPucchCsPf1willnottakeeffectifthisisenabled.
RP20
ulNrAllowedMaxMcs
SystemconstantdescribingtheallowedMCSesonPUSCH.
RP22
draDlCsiRsCtrlData
AbitmapcontainsasetofcontrolknobsforCSIRSfunctionality.
RP23
macContentionResolutionTimer
RandomAccessMACcontentionresolutiontimer(T300)inmilliseconds.See38.331forsupportedvalues.ChangetakeseffectonnextUEconnectionattempt.
RP24
draDlLaCtrl
BitmapusedbyDLDRAtocontrolLinkAdaptationBit0-1:
MCStable00-adaptive01-forceMCStable1(qam64)10-forceMCStable2(qam256)11-invaliddefault:
1Bit2:
adaptive/fixedMCS0-adaptive1-fixeddefault:
1Bit3-7:
fixedMCSvalue,validonlyifbit2set0-28fixedMCS,ifMCStableistable10-27fixedMCS,ifMCStableistable229,30,31-invaliddefault:
8Bit8-11:
fixed/adaptivenumberoflayerspercw0-adaptive1-8:
1to8Layersdefault:
1Bit12-28:
NotUsedNOTE:
Thefollowingbitfieldsaretemporaryinnatureandwillberemoved..TheystartfromtheMSB(bit31isreservedforsignedbitforS32)foreasiercleanup..shouldtrytohaveadefaultvalueof0sothatitistransparenttousersduringcleanup.Bit30:
AllocationtypeinDCI1_1(type0ortype1)0-useallocationtypedefinedinthisconstantNR3GPP_PDSCH_CONFIG_RESOURCE_ALLOCATION1-forcetouseallocationtype1forDCI1_1default:
0Bit29:
blockPDSCHallocationinSSBslot(appliedtofullcellbandwidth)0-FALSE.AllowPDSCHallocationinSSBslot1-TRUE.DoNOTallowPDSCHallocationinSSBslotdefault:
0Default:
0x00000145-MCStable1,MCSfixedto8,1layerpercw
RP25
rlcAdvancedFeatureBitmap
Thissystemconstantisabitstring(0to0xffffffff),usedtoenableadvancedorexperimentalRLCDLfunctionalitywhencorrespondingbitisset.Bit0=ifbitset,enablesdlPollRetxoptimizationonDRB.Forapoll-triggeredARQretxinDLonaDRB,insteadofretransmittingentireRLCPDUjusttosendpollbit,asmallRFPDUissentwithPollBitsetinheader.Bit1=ifbitset,enablesadaptiveRLCDLtPollRetxTimer.ThetPollRetxtimervalueisadaptedasafunctionofretxCount.InLTE,thisiscontrolledbyAdaptiveRlcPollReTransmissionfeaturebutinNRthereiscurrentlynosupportforfeatureenabling.Bit2=ifbitset,thenforRRCConnectionReleasemessages,limitsmaxARQretransmitattemptsto3andextendstPollRetransmitDltimerforSRBbearerto160milliseconds.Bit3=ifbitset,thencompletelydisablesRLCDLActiveQueueManagement(AQM).
RP26
rlcAdvancedFeatureValue
ThissystemconstantisavalueusedforadvancedorexperimentalDLRLCfunctionality.
RP27
upcDlCsiRptCfgData
AbitmapcontainingconfigurationdataforCSIreports.
RP28
preschedulingEnable
Enable/disablepreschedulingfunctionality
RP29
preschedulingDataSize
AssumedUEbuffersizeinunitofbyteforprescheduling.Default536870911bytes
RP30
upcDlDebugCtrl
DebugcontrolbitmapforgeneralUPCDLfunctionality.SeeMappingsectionfordetailsinfoforeachbitfields.WARNING:
Pleaseupdatethemappingdescriptionforeachnewbitfieldadded,otherwise,othersmightbeusingthesamesetofbit(s)for
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