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首页 CMU200测试蓝牙规程

CMU200测试蓝牙规程.pdf

CMU200测试蓝牙规程

chopper
2011-09-19 0人阅读 0 0 0 暂无简介 举报

简介:本文档为《CMU200测试蓝牙规程pdf》,可适用于IT/计算机领域

RohdeSchwarzUniversalRadioCommunicationTesterCMUBluetoothTHEtesterforcurrentandfutureMobileRadioNetworksAdministratorRohdeSchwarzCMUmodularplatformconceptCMUBasicUnitCMUBasicUnitSoftwareOptionsSoftwareOptionsHardwareOptionsHardwareOptionsStandardindependenttestingStandardindependenttestingGSMGSMAMPSAMPSDAMPSDAMPSCDMACDMAWCDMAWCDMABluetoothBluetoothRohdeSchwarzCMUgeneralfeaturesWidefrequencyrangeMHztoGHzSpectrumanalyserintegratedFasttesttimesduetoparallelprocessingHighreliabilityduetolowtemperaturedesignBroadselectionofinterfaces–VGAmonitor,keyboard,printer(parallelinterface)–IEEEbus(SCPI)RS–FloppydiskdriveorPCMCIAslot–AllfrequentlyneededsignalinterfacesonfrontpanelCMURohdeSchwarzCMUBluetoothConfigurationHardwareCMUBisaBluetoothextensionboardfortheCMUBsignallingunit–thissignallingunitcanalsobeusedforGSM,AMPSandTDMA(IS)SoftwareCMUK–Bluetoothsoftware,activatedbykeycodePlatformControllerRXTXBoardISignallingUnitIReferenceboardRFfrontendDataAcqboardBTextensionRohdeSchwarzBluetoothTestModeControlcommandsfromthetester–EnsurepredefinedbehaviourofDUTfrequencyhoppingfrequencysettingsActivationofTXmodeDUTtransmitsselectablebitpatternActivationofloopbackmodetestersendsbitpatternSwitchingtheDUTintotestmode–LocalenablingofDUT(normallydoneusingexternalPC)–ActivationviaairinterfaceCMUCMUDUTDUTControlCommandsTestdataLocalactivationenablingMasterSlaveRohdeSchwarzCMUwithBluetoothoptionFeatures–MeasurementsforBluetoothandcellularstandardsinonebox(GSM,AMPS,TDMA,CDMA,WCDMA)–Numericalandgraphicaldisplayofmeasurementresults–Calculatesmeasurementresultsbyusingallchannelsinhoppingmode–Selectionofsinglechannelsforindepthsignalanalysis–AdditionalsupportofreducedhoppingandconstantfrequencyoperationoftheDUT–IFoutputofthehoppingsignalonconstantfrequencyofMHzforlabapplicationsRohdeSchwarzCMUBluetoothoptionfeaturesIdealbecauseofthewidevarietyofpossiblesettingsandthehighresolutiondisplayTheCMUgosupportsmeasurementsinaccordancewithRFtestspecasfaraspossibleFastesttesteronthemarkettheCMUisthreetimesfasterthantheothersinmodulationBERtestsinhoppingmodeifallchannelsaremeasuredSincethistestreflectsrealisticoperatingconditions,theuseofanCMUinproductionensuresthattheDUTwillfunctionproperlyinrealoperationTheCMUcanswitchtheDUTtothelowpowermodes(park,hold,sniff),thuseasilyallowingpowerconsumptiontestsinproductionPowerconsumptionisacriticalfactorforallbatteryoperatedBluetoothdevicesIncombinationwiththeCMUBaudiooption,theCMUisideallysuitedfortheproductionofBluetoothaudiodevicessuchasheadsetsandcarkitsCMURohdeSchwarzCMUSignallingPiconet–CMUactsasmaster–DUTactsasslaveInquiryprocedure–CMUidentifiesallBluetoothdeviceswithinrangePagingprocedure–oneBluetoothdevicecanbeselectedasDUT–CMUestablishestheconnectiontotheDUTTestmodeoperation–CMUswitchestheDUTintotestmodeoperation–CMUsendstheappropriatetestmodecommandstotheDUTviatheRFinterfaceTransmittermode(TXtests)Loopbackmode(RXtests)RohdeSchwarzCMUTXmeasurementsPowernominalpower–averagepowermeasuredwithintheBluetoothburstpeakpower–alsomeasuredwithintheBluetoothburstleakagepower–measuredinthetimebetweenthedifferentburstsPackettiming–alignmentofthereceivedburstfromtheDUTinrelationtothemastertimeframe(CMU)RohdeSchwarzCMUTXmeasurementsModulationfrequencydeviation(average,min,max)–calculatedoverthepacketpayloadFrequencyfrequencyaccuracy–measuredatthebeginningofapacket–differencebetweenmeasuredandintendedfrequencyfrequencydrift–frequencydifferencebetweenpacketstartandpayloaddriftrate–maximumdriftrateanywherewithinthepacketpayloadRohdeSchwarzCMURXmeasurementsReceiverquality(sensitivity)differentbitsequencesselectableBER(biterrorrate)–percentageofbiterrorswithinthecurrentstatisticalcyclePER(packeterrorrate)–percentageofpacketerrorswithinthecurrentstatisticalcycleconsideringallpacketswithaheader,whichcannotbecorrectedBERsearchfunction–CMUvariestheoutputpowerwhilemeasuringtheBER–measurementisstopped,whentheBERisclosetoasettablelimitUsertestprograms–uptofivedifferenttestprogramscanbedefinedbitsequence,powerlevel,limits,modesRohdeSchwarzCMURXmeasurementsSignalgeneratorfunction–operatesinnonsignallingmode–generationofBluetoothbursts(GFSKmodulation)–RFchannelandfrequencyoffsetselectable–differentdatapatternsavailableRohdeSchwarzOperatingmenuesConnectionControl(notconnected)RohdeSchwarzOperatingmenuesConnectionControl(connected)RohdeSchwarzOperatingmenuesOverviewRohdeSchwarzOperatingmenuesPowerTimingRohdeSchwarzOperatingmenuesFrequencyModulationRohdeSchwarzOperatingmenuesSensitivity(BER)RohdeSchwarzOperatingmenuesGeneratorfunctioninnonsignallingmode

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