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A.50欧姆
B.75欧姆
C.120欧姆
1个2M传输不用信令压缩的情况下最多可以开通几个载波：
A.9个
B.10个
C.12个
D.15个
在切换中，“HANDOVERPERFORMED”这条消息是从
的。
A.MSC发向BSC
B.BSC发向MSC
C.MS发向BSC
D.BSC发向MS
TheSS7signalingismadeupofaMassagePart（MTP）andanumberofUser/ApplicationParts（UP）.WhatUserorApplicationPartisusedforsignalingbetweentheBSCandtheMSCintheGSMnetwork?
A.MAP
B.BSSAP
C.OMAP
WhatpartwasaddedtotheMTPintheSS7signalingsystemtoenableittosupportconnection-orientatedandconnection-lesssignaling?
正确答案应该是C
A.ISUP
B.TCAP
C.SCCP
CALLCONFIRMEDisasignalsentfromtheMStotheMSCforthepurposeof?
A.RespondingtoSETUPsignalfromtheMSC
B.RespondingtotheAUTHENTICATIONREQUESTsignalfromMSC
C.RespondingtothePAGINGCOMMANDfromtheMSC
WhichofthefollowingisusedbytheBTSandMSinprovidingsecurityforthespeechanddataovertheairinterface?
A.K1
B.Kc
C.SRES
WhyisTMSIused?
A.Asatemporarypersonalcodetoaccessthenetwork
B.Forsecurityreasons
C.Forusewitharentedmobiletelephone
TimersareusedforPeriodicLocationUpdating.Wherearethesetimerslocated?
a
A.A）MSandMSC
B.B）MSandBSC
C.C）BSCandMSC
HowmanyTSsandE1sarerequiredtoconnectthefollowingaccessnetworktoaBSCwhenaDXCisusedtogetmaximumutilizationoftheE1s?
Accessnetworkwith30sitesoftype3/3/3and20sitesoftype2/2/2.LAPD-multiplexingandLAPD-concentrationisused.
C
A.870TSs,29E1s
B.848TSs,28E1s
C.780TSs,26E1s
Whatisthedifferencebetweenmessagetransferona）MTPandb）SCCPlevelinSTP?
A.a）GTTisinSTP,b）noGTTinSTP
B.a）noGTTinSTP,b）GTTinSTP
C.nodifference
CalculatethesignalingvolumegeneratedontheAinterfaceinthePLMNshownbelow
Inputdata:
50000subscribers,trafficpersubscriberis25mE,MHT=100s,numberoflocationupdates=1per/subscriber/busyhour,octets/call（toBSC/TRC）=270,octets/call（fromBSC/TRC）=280,octets/locationupdating（to,BSC/TRC）=130,octets/locationupdating（fromBSC/TRC）=87.
A.79,1kbit/s
B.42,4kbit/s
C.41,4kbit/s
Blockingsupervisionmeasurementstakeplaceevery
A.100sec
B.90sec
C.60sec
D.30sec
E.25sec
HowmanyTRXscantheEricssonBSCsupport?
A.128
B.256
C.512
D.1020
E.1024
1毫瓦与1瓦约相差多少?
A.20dB
B.30dB
C.1000dB
D.100dB
Whatisthenameofthetypeoffadingwhichisduetoshadowing?
A.Multipath
B.Atmosphericfading
C.Rayleighfading
D.Log-normalfading
E.Pathloss
Whatisthemostcommonvalueofthehysteresisusedwhenestimatingmarginsforlog-normalfading?
A.3dB
B.5dB
C.6dB
D.8dBThepurposeoframpingistoavoidhandoverdecisionstoanewneighborbasedononlyafewsamples.Whatisacommonparametersettingformacrocells?
A.SSRAMPSI=10andSSRAMPSD=20。
B.SSRAMPSI=10andSSRAMPSD=10。
C.SSRAMPSI=5andSSRAMPSD=2。
D.SSRAMPSI=2andSSRAMPSD=5。
从统计发现某小区掉话率偏高，仔细分析其掉话原因，发现弱信号掉话率占近100%，那么以下分析错误的是
答案应该是C
A.该小区可能漏定义了重要邻区
B.该小区可能覆盖太远
C.该小区的ACCMIN设得太低
D.该小区有硬件故障
MAIO是为了减小频率干扰的，分为人工配置和缺省配置。
哪一种复用形式建议采用人工配置的：
A.1/3
B.3/9
C.1/1
HowmanyTSsandE1arerequiredfortrafficontheAatrinterfacewhenthetraffictobesupportedis710ErlangandGoS=1%
A.738TSs,24E1s
B.185TSs,6E1s
C.683TSs,23E1s
WhichofthefollowingSignalingSystemNo.7Protocolsareusedforroutingofsignalingmessages?
A.MAP,TCAP
B.TCAP,SCCP
C.MTP,SCP
1.Calculatetheprocessorcapacityintermsofcalls/swhenthetrafficloadis72%andtheloadpercallis25ms.
A.28,8calls/s
B.31,4calls/s
C.33,8calls/s
Whichofthesedifferent“droppedcallrates”givesa“subscriberperceived”droprate?
A.DroppedTCHconnectionsofthetotalnumberofTCHconnections
B.Droppedcallsofthetotalnumberofcallsterminatedinthecell
C.ErlangminutesperdroppedTCHconnection
D.Averagecalldropsexperiencedduringonehourtalktime
E.Allofthese
WhatisaddedtotheMSsensitivityleveltoobtaintherequiredsignalstrength,SSreq?
A.Rayleighfadingmargin
B.Rayleighfadingmarginandinterferencemargin
C.Rayleighfadingmargin,interferencemargin,andbodyloss
D.Rayleighfadingmarginandbodyloss
E.Interferencemarginandbodyloss
UsetheenclosedErlangTabletoworkoutwhichistheoptimumSDCCHconfigurationusingfourTRXs,iftheSDCCH/TCHtrafficratiois30%andtherequiredGoSontheTCHis2%.（AssumenocellbroadcastandnoimmediateassignmentontheTCH.）
A.SDCCH/8
B.SDCCH/8+SDCCH/4
C.2*SDCCH/8
D.2*SDCCH/8+SDCCH/4
E.3*SDCCH/8
AGBLKmustbesettoanon-zerovalue（thatis=1inEricsson’sGSMsystem）,if:
A.Cellbroadcastisusedinacellwithanon-combinedconfiguration.
B.Cellbroadcastisusedinacellwithacombinedconfiguration.
C.Systeminformation,type4,issentontheBCCH.
D.Systeminformation,type5,issentontheBCCH.
E.MFRMS=2orMFRMS=9
2.WhichisthemostimportantfactorfordeterminingthepagingcapacityintheBTS?
A.MFRMS（controlsthenumberofpaginggroups）
B.AGBLK（reservesapagingblockforaccessgrant）
C.Pagingstrategy（forexample,secondpageintheMSCserviceareaorintheLA）
D.Combinedornon-combinedmapping
E.Theuseofcellbroadcast
!
AretheULsignalstrengthmeasurementsusedinthelocatingalgorithm?
E
A.Yes,ofcourse.
B.No,notatall.
C.Yes,butitisusedonlytocheckifconditionsforintra-cellandurgencyhandoversarefulfilled.
D.No,itisusedonlyforpowercontrolofthemobile.
E.Yes,butitisusedonlytocheckiftheconditionsforintra-cellhandoverarefulfilled.
WhatisthebasicrankingintheEricsson1locatingalgorithmbasedon?
A.Relativesignalstrength
B.Absolutesignalstrength
C.Minimumsignalstrength
D.Sufficientsignalstrength
E.Quality
WhatisthepurposeofsettingBSRXSUFFto–150dBmandMSRXSUFFto0dBminallcells?
A.Tomakesurethattheuplinksignalstrengthinfluencesthebasicranking.
B.Toenablepathlossranking.
C.Toensurethatthesignalstrengthontheuplinkisalwayssufficient.
D.Toobtainanabsolutesignalstrengthranking.
E.Todisablepathlossranking.
Cellsinthebasicrankinglistaredividedintocategories.Howmanycategoriesarethere,iftheservingcellisconsideredasacategoryofitsown?
A.2
B.3
C.8
D.10
E.11
Whatisoneofthedifferencesbetweenthephase1andphase2establishmentcauses?
PHASE1不能支持起呼的呼叫与SMS.其它类型的接入可区别
A.Phase2establishmentcausesdistinguishbetweenanswertopagingandcallre-establishment.
B.Phase2establishmentcausesdistinguishbetweenMSoriginatedcallandanswertopaging.
C.Phase2establishmentcausesdistinguishbetweenlocationupdatingandanswertopaging.
D.Phase2establishmentcausesdistinguishbetweenMSoriginatedcallsandSMS.
E.Phase2establishmentcausesdistinguishbetweencallre-establishmentandSMS.
WhichofthecriteriabelowisnotinfluencedbythevalueofCHAP?
（影响用户信道分配的功能是微分信道分配,用于做品牌接入）
A.Prioritizingofdifferentusersornot.
B.ImmediateassignmentontheTCHallowedornot.
C.TCHorSDCCHfirst.
D.Overlaidsubcellasalastresortornot.
E.Phase1orphase2mobiles
3.Ifthepathlosscompensationparameter,LCOMPDL,issettoten,thedownregulationintheBTSoutputpower,duetopathlosscompensation,islimitedto:
A.6dB
B.10dB
C.12dB
D.20dB
E.30dB
4.Assumethatthereare12frequencies（f1-f12）inthehoppingfrequencyset.WhatdefaultMAIOvaluesareallocatedtothefirstsevenTRXsinthecell”?
A.0,1,2,3,4,5,and6
B.1,2,3,4,5,6,and7
C.0,2,4,6,8,10,and1
D.1,3,5,7,9,11,and0
E.0,3,6,9,1,4,and7
WhatisnottakenintoaccountwhenderivingSQI?
A.BER
B.FER
C.HOevents
D.Speechcoder
E.Timingadvance
WhichdropcounterissteppedwhenacallisdisconnectedbecauseMAXTAisexceeded?
（TA掉话原因是与TALIM比较,大于MAXTA的掉话为不明原因掉话）
A.SSdropcounter
B.Qdropcounter
C.TAdropcounter
D.Allofthese
E.Noneofthese
5.Whatexpressionisusuallyusedforthepagingsuccessrate?
（PAGING成功率为（第1次+第2次寻呼成功数）/第1次寻呼申请,因为第二次寻呼申请是重复第一次的）
A.Successfulrepeatedpageattempts（inlocationarea）oftotalnumberoffirstandrepeatedpageattempts（inlocationarea）.
B.Successfulrepeatedpageattempts（inlocationarea）oftotalnumberofrepeatedpageattempts（inlocationarea）.
C.RateofdiscardedpagingmessagesintheBSC.
D.Successfulfirstandrepeatedpageattempts（inlocationarea）oftotalnumberoffirstpageattempts（inlocationarea）.
E.Successfulfirstandrepeatedpageattempts（inlocationarea）oftotalnumberoffirstandsecondpageattempts（inlocationarea）.
如果将T3101设置抬高,可能会造成什么影响?
A.riskofSDCCHCongestion
B.riskofPCHCongestion
C.riskofTCHCongestion
D.riskofAGCHCongestion
‘CallProceding’是在以下哪个过程中被用到?
A.MOC
B.MTC
C.LocationUpdate
D.handover
Whichofthefollowingstatementsabouttheurbanmodelisnottrue?
A.Permanentscreens,usedinthehalf-screenpartoftheurbanmodel,areusedtodefinetheenvironmentalongthecalculationprofileinageneralwayand,therefore,thelo
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