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1、网优试题-动态功控（Networkoptimizationtestdynamicpowercontrol）Networkoptimization[selection]dynamicpowercontrolARadioButtonList(27items,atotalof83.7points)1.,aftertheuplinkanddownlinkDTXstart,theusercomplaintsvoiceintermittentreason:(3.1points)A.usersusethePHASE1han
2、dsetTheB.VADdetectoractionproblemcausesframelossC.upanddowncannotstartDTXatthesametimeD.normalphenomenonAnswer:BThe2.step_____dynamiccontrol,aSACCHcyclecanbeadjusted_____(3.1points)A.2dB8dBB.2dB16dBC.4dB16dBD.4dB32dBAnswer:BAnalysis:thedynamicpowercontrolof
3、mobilephonemeansthatthebasestationdynamicallyadjuststhetransmittingpowerofthemobilephoneaccordingtothecalculatedpathlossandthetransmittingpowerusedbythemobilephone.WithineachSACCHcycle,thephonecanbeadjustedat2dBpowerintervals,andcanbeadjustedupto8times,i.e.
4、,duringaSACCHcycle(480ms),thetransmitpowerofthehandsetcanchangethe16dBamplitude.3.ifthedownlinkdynamicpowercontrolparametersareasfollows,askthepoweradjustmentrangeis(SSDESDL=-90dBm,LCOMPDL=10,rxlev=-60dBm)(3.1points)A.30dBB.3dBC.1.5dBD.2.4dBAnswer:B4.,which
5、ofthefollowingdescriptioniswrongaboutafastmovingmobilestation?(3.1points)A.canadjustitsdynamicpowercontrolspeedbyadjustingtheparameterSSLENDLtomeettherequirementsofwirelessenvironment.B.ifyoufindahandoverfailureinthedynamicpoweradjustmentarea,youcanadjustth
6、eparameterQCOMPDLandtheparameterLCOMPDLtosolvetheproblem.C.iftheweaksignalconditionisfoundinthedynamicpoweradjustmentregion,thesignalintensityoftheregioncanbeincreasedbyincreasingtheparameterSSDESDL.D.ifitisfoundthatthepresenceofpoorqualityinthedynamicpower
7、adjustmentregioncanbeimprovedbyadjustingtheparameterQDESDL.Answer:BSSDESDL:thetargetvalueofthedesiredsignalstrengthisdefinedindifferentpartsoftheadjustmenttimegap.Intheabsenceofmasscompensation,theSSDESDListhesignalstrengthexpectationontheoutsideoftheregula
8、tingregion.Thisparameterissetineachcell;LCOMPDL:thisparameterdetermineshowmuchpathlosswillbecompensated;QCOMPDL:thisparameterdeterminesthevalueofthemasstobecompensated,withvaluesrangingfrom0to60.Whynot
