GSM无线部分试题和答案

GSM/GPRStestRadioPart单选题：1.WhatisGSM900andE-GSM900frequencyband?A.UL:890-915,DL:935-960,UL:880-890,DL:925-935B.UL:890-915,DL:935-960;UL:880-915,DL:925-960C.UL:890-915,DL:935-960,UL:885-890,DL:930-935B2.Thedesignlevel,SSdesign,isA)thesignalstrengthvaluethatshouldbeusedinthepowerbudgetB)thesignalstrengthvaluethatshouldbeobtainedatthecellborderwhenplanningwithpredictiontoolslikeTEMSCellPlannerC)thesignalstrengthvalueobtainedasEiRP-LpD)thesignalstrengthvalueanMSofclass4mustbeabletoobtainE)therequiredsignalstrengthplusaRayleighfadingmarginB3.Whatisthemostcommonvalueofthehysteresisusedwhenestimatingmarginsforlog-normalfading?A)3dBB)5dBC)6dBD)8dBE)10dBA4.ArepeatercanbeusedtoA)increasethecapacitylocally(inatraffichotspot)B)increasethecapacityalonghighwaysC)getbettercoverageonwaterD)getbettercoveragewheretheareatobecoveredisblockedbyobstaclesE)forneitherofthesepurposesD5.Whatexpressionisusuallyusedforthepagingsuccessrate?A)Successfulrepeatedpageattempts(inlocationarea)oftotalnumberoffirstandrepeatedpageattempts(inlocationarea).B)Successfulrepeatedpageattempts(inlocationarea)oftotalnumberofrepeatedpageattempts(inlocationarea).C)RateofdiscardedpagingmessagesintheBSC.D)Successfulfirstandrepeatedpageattempts(inlocationarea)oftotalnumberoffirstpageattempts(inlocationarea).E)Successfulfirstandrepeatedpageattempts(inlocationarea)oftotalnumberoffirstandsecondpageattempts(inlocationarea).D6.Howmanytransmitters(TXs)canbeconfiguredtoanomniantennausingaCDU-C?A)1B)2C)4D)6E)8C7.ThethreeradionetworkrecordingfacilitiesintheBSCwhichcanbeaccessedfromOSStomonitorthebehaviorofthemobilefromthenetworksideis：A)STS,CERandRNRB)CER,MTRandRNRC)MTR,RNRandCTRD)CTR,RNRandSTSE)CTR,MTRandCERE8.WhyareneighbouringcellrelationscreatedbeforeusingthefrequencyTCP?A)TosethysteresisparametersB)ForexporttoCNAC)Toestimateadjacent-channelinterferenceD)ForapplicationofcarrierseparationconstraintsE)Toestimateco-channelinterferenceD9.Whichunitisusedforthetranscodingofspeechinformation?A)TRAUB)TRHC)TRXA10.Whatistrueaboutmicrocellsandpicocells?A)ApicocellisanindoorcellandamicrocellisanantennaplacedbelowtherooftopB)ApicocellisanumbrellacellandamicrocellisanormalcellC)TheyareboththesamethingD)ApicocellisusedinEuropeandamicrocellareusedintheUSAE)ApicocellisanindoorcellandamicrocellisamacrocellA11.WhatdoesthemodifiedKeenan-Motleymodelforindoorwavepropagationpathlossnottakeintoaccountdirectly?A)TransmittertoreceiverseparationdistanceB)Floorattenuation(andthenumberoffloorstraversedbythedirectwave)C)Wallattenuation(andthenumberofwallstraversedbythedirectwave)D)DistantdependentlinearattenuationE)ReflectionanddiffractionE10.WhyistheGSMnormalcellradiuslimitedto35kmwithonetimeslotpertrafficchannel?A)ProblemswithtimealignmentB)Thefrequencyre-usepatternsetsthelimitC)Theoutputpowermaynotexceed40WA11.Whattypeofsysteminformationmessageismandatorytobroadcast,whenfrequencyhoppingonSDCCHisused?A)Systeminformationtype1B)Systeminformationtype4C)Systeminformationtype7A12.WhenisthepriorityclassconsideredforGPRScellre-selection?A)Only,ifthereisnoPBCCHinthecell.B)Only,ifthereisaPBCCHinthecellandtherearecellswithC31=0.C)Only,ifthereisaPBCCHinthecellandtherearenocellswithC31=0.D)Only,ifthereisaPBCCHinthecelland(C10fortheservingcellorthereisa“better”cell).E)Only,ifthereisaPBCCHinthecellandC10fortheservingcell.B13.AreULsignalstrengthmeasurementsusedinthelocatingalgorithm?A)Yes,ofcourse.B)No,notatall.C)Yes,butitisusedonlytocheckifconditionsforintra-cellandurgencyhandoversarefulfilled.D)No,itisusedonlyforpowercontrolofthemobile.E)Yes,butitisusedonlytocheckifconditionsforintra-cellhandoverarefulfilled.E14.WhatistheparameterTINITusedfor?A)Tosettheinitialvalueofthetimerthatinhibitshandoverafterachangeofchannel.B)Tosettheinitialvalueofthetimerthatcontrolsthemeasurementeventsofthemobile.C)Tosettheinitialvalueofthetimerthatcontrolsifhandoverduringsignalingisallowedornot.D)TosettheinitialvalueofthetimerthatcontrolsifhandovertoanotherBSCisallowedornot.E)Tosettheinitialvalueofthetimerthatcontrolsthefilteringprocess.A15.Thepurposeoframpingistoavoidhandoverdecisionstoanewneighborbasedonlyonafewsamples.Whatisacommonparametersettingformacrocells?A)SSRAMPSI=10andSSRAMPSD=20B)SSRAMPSI=20andSSRAMPSD=10C)SSRAMPSI=10andSSRAMPSD=10D)SSRAMPSI=5andSSRAMPSD=2E)SSRAMPSI=2andSSRAMPSD=5E16.Whatistrueaboutinter-BSChandover?A)Itispossibletotransferapenaltylist.B)Itispossibletoindicatethecauseofthehandover.C)Itispossibletousethepenaltiessetfortheoldcell.D)TALLOCdoesnotapplyatinter-BSChandover.E)TURGENdoesnotapplyatinter-BSChandover.B17.WhatisthepurposeofsettingBSRXSUFFto–150dBmandMSRXSUFFto0dBm?A)Tomakesurethattheuplinksignalstrengthinfluencesthebasicranking.B)Toenablepathlossranking.C)Toensurethatthesignalstrengthontheuplinkisalwayssufficient.D)Toobtainanabsolutesignalstrengthranking.E)Todisablepathlossranking.D18.Thefigurebelowshowstheoutcomefrombasicranking.AssumingallcellsexceptDandHfulfilbandandlayerthresholds,whatcellsshouldbeprioritizedandinwhatorder?A)A,B,E,andGB)G,E,B,A,C,andFC)G,E,B,andAD)B,A,F,G,E,andCE)A,