20第三方无线无线优化通用L311B场考试题库25.docx
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20第三方无线无线优化通用L311B场考试题库25.docx
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20第三方无线无线优化通用L311B场考试题库25
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【题目】17357、Whichofthefollowingdescriptionsiscorrect?
()
A、TheRRCReestablishmentSuccessRateisthenumberof""RRCConnectionReestablishmentRequest""thattheeNodeBreceives/thenumberof""RRCConnectionSetupComplete""thattheeNodeBreceives.
B、TheRRCReestablishmentSuccessRateisthenumberof""RRCConnectionSetupRequest""thattheeNodeBreceivesthefirsttime/thenumberof""RRCConnectionReestablishmentComplete""thattheeNodeBreceives.
C、NetworkAccessibilityistheprobabilitythattheUEperformscellregistrationsuccessfullyonaspecifiedPLMN(manuallyorautomatically).
D、Thenetworkavailabilityindexmeasuresthenetworkcoverageabilitythroughtheprobabilityofsubscribersresideinthecellsofanetwork.
【正确答案】D
【题目】17358、WhichoftheformulaeiscorrectforcalculatingtheE-RABDropRate?
A、NumberofnormallyreleasedE-RAB/NumberofsuccessfullyestablishedE-RABx100%
B、NumberofabnormallysetupE-RAB/NumberofsuccessfullyestablishedE-RABx100%
C、NumberofabnormallyreleasedE-RAB/NumberofsuccessfullyestablishedE-RABx100%
D、AlloptionsarewronG、
【正确答案】C
【题目】17359、Whichofthefollowingdescriptionsiswrong?
A、C-PlaneLatencyshowstheidletoactivetransitiontimetheendusermayexperiencetosetupaservicE、
B、U-PlaneshowsthePINGroundtriptimeintheendtoendcommunication.
C、PeakDLCellThroughputshowstheaveragethroughputthecellcanreachindownlink,ontheapplicationlayer.
D、AttachTimeshowstheconnectiontimeforanendusertoattachtothenetwork,duringwhichtheactivationofadefaultbearerisperformeD、
【正确答案】C
【题目】17360、Theprimaryinfluenceoffadingontheperformanceofadigitalcommunicationsystemis().
A、randomfieldstrengthfluctuation
B、delayspread
C、randomphasemodulation
D、randomfrequencyshift
【正确答案】B
【题目】17361、WhichofthefollowingparametertablesisnotusedforsimulationinCNP?
A、SFBCgaintable
B、MIMOdual-streamgaintable
C、MIMOsingle-streamgaintable
D、Spacediversitygaintable
【正确答案】D
【题目】17362、Forthesameservice,youcanuse()numberofRBbut()modulation/demodulationmodeandcoderatE、
A、less,less
B、higher,higher
C、less,higher
D、fixed,fixed
【正确答案】C
【题目】17363、Forpacketdataservices,howmuchdBofbodylossmarginshouldbereservedinthelinkbudget?
A、0
B、2
C、3
D、4
【正确答案】A
【题目】17364、Adjacentchannelleakageratio(ACLR)showstheabilityof()transmissionsignalsenterthepassbandofareceiverunderinterferencE、
A、diffraction
B、out-of-band
C、in-band
D、inter-modulation
【正确答案】B
【题目】17365、Inthefreespace,whenthedistance(d)betweenthetransmitterantennaandreceiverantennadoubles,orwhentheradiofrequency(f)doubles,thepropagationlossincrease()dB、
A、2
B、3
C、4
D、6
【正确答案】D
【题目】17366、FordifferentMIMOconfigurations,theoverheadofdownlinkreferencesignals(RS)isdifferent.Forsingle-streamMIMO,inonesub-frame,()REsfromevery12sub-carrierswillbeusedforRS.
A、4
B、8
C、16
D、24
【正确答案】B
【题目】17367、Themaximumtransmitpoweroftheterminal(eUEmaximumpower)is()dBm.
A、21
B、22
C、23
D、24
【正确答案】C
【题目】17368、Inasimulationusingplanningsoftware,youarenotrequiredtocalculatethepathlossagainafteryoumodify().
A、Antennamodelnumber
B、Antennadowntilt
C、LocationoftheeNodeB
D、TransmitpoweroftheeNodeB
【正确答案】D
【题目】17369、InFDDLTE,thereare()preamblesinacell.
A、64
B、128
C、256
D、502
【正确答案】A
【题目】17370、FortheSPMmodel,()isafactorrelatedtotheeffectivetransmissionheightofamobilestation.Generally,itsvalueissetto0duringthemodelcalibration.Wedon'tneedtotakeitsinfluenceintoconsideration.
A、K3
B、K4
C、K6
D、K7
【正确答案】C
【题目】17371、BeforeusingCapesso,whichzonemustbeprovidedinAtoll?
A、Focuszone
B、Computationzone
C、Printingzone
D、Filteringzone
【正确答案】A
【题目】17372、HowmanyOFDMAsymbols(normalCP)arecontainedinonesub-frame?
A、7
B、6
C、14
D、12
【正确答案】C
【题目】17373、IntheLTEsystem,iftherearetwoantennas,thepowerofasingleantennais43dBm;iftherearefourantennas,thepowerofasingleantennais()dBm.
A、42
B、41
C、40
D、39
【正确答案】C
【题目】17374、Thetransmissionperiodofthebroadcastchannel(BCH)is(),andtheschedulingperiodis10ms.
A、10ms
B、20ms
C、30ms
D、40ms
【正确答案】D
【题目】17375、TheuplinkRSintheLTEisdesignedbasedonthe()sequencE、
A、Zadoff-Chu
B、GCL
C、Pseudo-random
D、OBD
【正确答案】A
【题目】17376、TheRandomAccessResponsemessageuses()forscramblinG、
A、SI-RNTI
B、RA-RNTI
C、P-RNTI
D、TempC-RNTI
【正确答案】B
【题目】17377、IntheAtollsimulation,whichkindofzonehascompletelynoeffectonthecalculationresultofcoverageplot?
A、Focuszone
B、Computationzone
C、Printingzone
D、Filteringzone
【正确答案】C
【题目】17378、Theuplinkinterferencemarginforthelinkbudgetismainlyusedfortheeffectof().
A、Thermalnoise
B、Ambientnoise
C、Intra-cellinterference
D、Inter-cellinterference
【正确答案】D
【题目】17379、Duringamodelcalibration,therequirementonthereceiveristhatitsreceptionsensitivitytotheCWwaveisnotlowerthan().
A、""-100dbm""
B、""-110dbm""
C、""-120dbm""
D、""-130dbm""
【正确答案】C
【题目】17380、Duringamodelcalibration,whatkindofantennaisusedgenerally?
A、Omni-directionalantenna
B、Directionalantenna
C、Smartantenna
D、AllmentioneD、
【正确答案】A
【题目】17381、AfterthemapfileisimportedtotheCNP,aspecificprojectionformatischosenaccordingtothecontentoftheprojectionfileinthe()filefolder.
A、clutter
B、vector
C、height
D、colour
【正确答案】C
【题目】17382、IntheCNPsoftware,whentheMCSis17,whichmodulationmethodshouldbechosen?
A、QPSK
B、BPSK
C、16QAM
D、64QAM
【正确答案】C
【题目】17383、Normally,thestrongestsignalsoftheantennaliesinthecellthatthisantennadirectlyfaces.Ifstrongsignalspresentinothercell,youshouldcheckwhetherornotthereis().
A、highVSWR
B、Wrongfeederconnection
C、Wrongneighborparametersetting
D、Interference
【正确答案】B
【题目】17384、ThesystemnotifytheUEofthe""Cell-specificReferenceSignalsPower""parametervia()broadcastingmethod,andtheparameteriskeptconstantinthedownlinksystembandwidthandallsub-frames.
A、MIB
B、SIB1
C、SIB2
D、SIB3
【正确答案】C
【题目】17385、VoltageStandingwaveratio(VSWR)isanimportantindex.Beforeanoptimizationoperation,youshouldmakesurethattheSWRoneachcell'soperatingfrequencyislowerthan().
A、1
B、1.5
C、2
D、3
【正确答案】B
【题目】17386、Ifthebandwidthis20M,andthemaximumsymbolpoweris20W,PA=-3,PB=1,thenthemaximumRSpoweris().
A、12
B、15
C、18
D、10
【正确答案】B
【题目】17387、WhenPA=0,andPB=(),thepowerutilizationrateis100%.
A、0
B、1
C、2
D、3
【正确答案】A
【题目】17388、Accordingtoexperiences,thenumberofeNodeBstobuildaclustershouldbaseonpracticalsituations.Youshouldinclude()eNodeBsinacluster,nottoomoreortooless.
A、Lessthan10
B、15-25
C、50ormore
D、About100
【正确答案】B
【题目】17389、Ifthenumberofantennaportsis2,andthesettingisnormalCP,itisOFDMsymbolNo.()thatincludesRSinaslot.
A、0
B、1
C、2
D、3
【正确答案】A
【题目】17390、Generally,anerrorof()degree(s)forazimuthisacceptablE、
A、1
B、2
C、5
D、10
【正确答案】C
【题目】17391、Whichofthefollowingangleforamechanicaldowntiltwillleadtolobedistortion?
A、5
B、8
C、15
D、3
【正确答案】C
【题目】17392、TheparametertoenablethetransmitdiversityforPDCCHis().
A、CellOpen-loopSpatialMultiplexingUsedIndicator
B、TransmitDiversityIndicatorforCommonChannel
C、CelltransmitDiversityUsedIndicator
D、CellClosed-loopSpatialMultiplexingUsedIndicator
【正确答案】B
【题目】17393、Totheproblemof(),increasingtheantennadowntiltordecreasingtheantennaheightisrequireD、
A、Weakuplinkcoverage
B、Weakdownlinkcoverage
C、Overshooting
D、Handoverfailure
【正确答案】C
【题目】17394、Whichofthefollowingdescriptioniscorrect?
()
A、AstheWCDMAsystemusesthe2.6GHzband,wedon'tneedtotaketheinfluenceofthefirstFresnelregionintoconsiderationforitssignalstransmission.
B、TheDopplereffecthaslargeinfluenceonthenarrowbandwirelesssystem,buthasrelativelysmallinfluenceonthebroadbandwirelesssystem.
C、TheelectricfieldprobabilitydensitydistributionfunctionsoffastshadowfadingandslowshadowfadingareinconformitywiththeRayleighdistribution.
D、AlldescriptionsarewronG、
【正确答案】B
【题目】17395、Atpresent,themaximumtransmitpowerforLTEterminalsis().
A、20dBm
B、23dBm
C、30dBm
D、33dBm
【正确答案】B
【题目】17396、Theclusterisgenerallydesignedin()shapE、
A、longbar
B、Honeycomb
C、Triangle
D、Rectangle
【正确答案】B
【题目】17397、WhenPA=-3,andPB=(),thepowerusageratiois100%.
A、0
B、1
C、2
D、3
【正确答案】B
【题目】17398、Atpresent,theequipmentcanachieveasinglechannelpowerof().
A、20W
B、30W
C、40W
D、60W
【正确答案】C
【题目】17399、Normally,ifthenumberofsitesbuiltinaclusteraccounts()ofthetotalnumberofsites,youcanperformRFoptimization.
A、0.1
B、0.2
C、0.3
D、0.8
【正确答案】D
【题目】17400、FortheOFDMsymbolsthatdonotincludeRS,δpower-offsetworksformulti-userMIMOonly,andthevalueforallotherformatsis()dB、
A、-3
B、0
C、1
D、2
【正确答案】B
【题目】17401、WhichofthefollowingmessageincludestheIPaddressassignedbytheUEonthenetworkside?
A、rrcConnectionSetup
B、rrcConnectionReconfiguration
C、rrcConnectionSetupComplete
D、rrcConnectionReconfigurationComplete
【正确答案】B
【题目】17402、WhichofthefollowingmessagetellsyoutheMMEwheretheUEregisters?
A、rrcConnectionRequest
B、rrcConnectionSetup
C、rrcConnectionSetupComplete
D、rrcConnectionReconfiguration
【正确答案】C
【题目】17403、WhichofthefollowingmessagetellsyoutheIMEIorIMSIofthecorrespondingUE?
A、Identityresponse
B、Authenticationresponse
C、rrcConnectionSetupComplete
D、ueCapabilityInformation
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