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1、彰抢暮勇妹曳羞纪俊憨衬擎掠撩崩孵柄洛嘉奠掏谚礁衣词迢寿吩橡育蜒及cdmamsmeasurecdmamsmeasureIntroduction to CDMA Mobile TestingWith the E8285ACDMA Mobile Station Test SetThird Edition伏否坟鄂姨扣彭砍拴官群故西仗劝植哆敲病兑豁背钢包拎绘恒碰顽澈摄汇cdmamsmeasurecdmamsmeasure01/99110001407.pptCDMA Test OverviewWhats Different About CDMA ?The IS-98-A TIA standardServi
2、ce OptionsTransmitter TestsReceiver TestsFunctional Tests贸买工掂珍柬工钩喳傍曳蕴颠山贼又睦挞串颓袍姓垮算聂踞嗣迅积妥鲤违cdmamsmeasurecdmamsmeasure01/99210001407.pptWhats Different with CDMA? Powerful Error Correction Codes are Used On All Voice Data BitsProcessing Gain Makes CDMA Tolerant of Transmission ErrorsNew Modulation Form
3、at Requires A New Figure of Merit for Waveform QualitySince CDMA is Designed to Work in a High Interference Environment, Testing Must Simulate Interference Conditions宴霍酱茶官糠撩称昨希某盈锰铜蜡搬诣誊岭烤匈俩仲婿粤俏插泡噎莉蛮鲸cdmamsmeasurecdmamsmeasure01/99310001407.pptThe IS-98-A Minimum Performance StandardStandard for Dual-
4、Mode Wideband Spread Spectrum Cellular Mobile StationsDeveloped through the Telecommunications Industry Association TR45.5 Working GroupImportant Test Sections of IS-98-A:Section 2 - Analog Receiver StandardsSection 3 - Analog Transmitter StandardsSection 9 - CDMA Receiver StandardsSection 10 - CDMA
5、 Transmitter Standards倾距墒植磐各碗肤娠甫蒲僧龚尉啃洋姑煤巩禾壳肇内莹昭管探抹捕林溯悉cdmamsmeasurecdmamsmeasure01/99410001407.pptService OptionsService Option 001 is Voice Mode Service Option 002 is 9600 bps Data Loopback ModeService Option 009 is 14400 bps Data Loopback ModeService Option 002 is Specified for Nearly All IS-98 Te
6、stsProvides a Convenient Method of Testing Mobiles Under Over-The-Air Transmission ConditionsData Received From the Base Station Simulator is Retransmitted by the Mobile Under Test衫四槛氏畦十扦邵丰倔淮而仪贰酸乡撒植昭危益阐擅膜穷傀击稳舵聂梯萧cdmamsmeasurecdmamsmeasure01/99510001407.pptGetting a CDMA Mobile On A Simulated LinkTo
7、Establish a Simulated Link, A Base Station Simulator Needs to:Provide a Pilot Channel for Short Code Timing and Frequency ReferenceTransmit a Sync Channel to Provide System Time (Fine Synchronization)Call the Mobile via a Paging Channel Requesting Service Option 002/009 (Mobile Auto Answers)Direct t
8、he Mobile to a Traffic ChannelPass Protocol Messages to the Mobile On the Traffic ChannelMaintain the Link During Required Measurements主胚呈诉岳坝荡晃园莉浑骡涤安罪嫉毡揍扬织靛锄缘蝴沥滓锅潜骂挠料胜cdmamsmeasurecdmamsmeasure01/99610001407.pptBase Station SimulatorPilot ChannelWalsh Code 0Sync ChannelWalsh Code 32Paging ChannelWal
9、sh Code 1Traffic ChannelOrthogonalChannel NoiseSourceAdditive White Gaussian NoiseSourceRFOutput半赛缸扫父讨萄哮亥旺隅住琼孩记剔菠斋冉悟丽君涪蛮必号弯岛匈科价坞cdmamsmeasurecdmamsmeasure01/99710001407.pptHPs CDMA Mobile TestSolution: The E8285AThe E8285A CDMA Mobile Station Test Set is a dual mode instrument that:Simulates a CDMA
10、Base StationPerforms real time, over the air signalingSupports one button call processingTests key CDMA RX and TX parametersAlso Simulates various analog cellular base stationsTests key analog RX and TX parameters脓泥轻见惑掐傀险纠奏道岳赞虎粤脐嫡镰年玖唤瞅懂宇蓄秉丧蚀恫硒拷产cdmamsmeasurecdmamsmeasure01/99810001407.pptE8285A CDMA
11、 SourceRFOutputPilot ChannelSync ChannelPaging ChannelTraffic ChannelOrthogonalChannel NoiseSourceAdditive WhiteGaussianNoise SourceSector APilot ChannelTraffic ChannelOrthogonalChannel NoiseSourceSector B奸扬呸沧踪溜工惰咸辅钾旦愿志叭贮寒牌护划瓮住软汁雹爹袋涉社战绥普cdmamsmeasurecdmamsmeasure01/99910001407.pptE8285A Call Process
12、ingE8285AHOST CPUProtocol CPUChannel CardChannel CardQualcomm ASICSQualcomm ASICSRX VTTXVTRXRF In/OutTXTXTX送仟描络乏硷乾茅伙箕虎一渺斡待垄由江柜珊牌违薯敌吼榜伦贿燃柔左沙cdmamsmeasurecdmamsmeasure01/991010001407.pptCDMA Transmitter TestsCDMA Transmitter Tests:Frequency AccuracyCDMA Hard HandoffTime Reference AccuracyWaveform Qual
13、ity (rho)Range of Open Loop Power ControlTime Response of Open Loop Power ControlAccess Probe Output PowerRange of Closed Loop Power ControlMaximum RF Output PowerMinimum Controlled PowerStandby and Gated Output PowerConducted TX Spurious EmissionsRadiated TX Spurious Emissions冉瞻厦胰发馏侯舌使还仲瓶掂霹胡痕握亮狱条渍仕
14、登狸树版膳埂挖艾仰斗cdmamsmeasurecdmamsmeasure01/991110001407.pptWaveform QualityCDMA Transmitter Figure of Merit: rho - Power Correlation CoefficientAn Expression Giving the Percent of Transmitted Power That Correlates to the Ideal CodeMobiles Must Meet rho of 0.944This level of Performance Produces 0.25 dB
15、of Increased Interference to Other Users皖粹炕嗅拍耗摘锋虹焕找置绞裙重博廊探汇磕纯负雕草粱药蕊嫉溢均擞往cdmamsmeasurecdmamsmeasure01/991210001407.pptFrequency Accuracy andStatic Time OffsetTransmitted Carrier Must be Accurate To Within 300 HzCannot Be Measured With a Conventional Frequency CounterDerived from rho MeasurementStatic
16、 Time Alignment (Mobiles Transmitted Data Clock) Must Also Be Accurate To 1 sMeasurement is Relative to the Pilot Channels Transmitted Data Clock急昭吏琳决岗尖雇钧厌忘伦次猎剿俗枪助哉褂呀豌赦盈聂其胎咐堂亏刘铬cdmamsmeasurecdmamsmeasure01/991310001407.pptOpen Loop Power TestVerifies Open Loop Power Control Estimate AccuracyMeasured
17、 Over an 80 dB Dynamic RangeMeasured at:Base -104 dBm - Mobile +31 dBmBase -65 dBm - Mobile -8 dBmBase -25 dBm - Mobile -48 dBmMobile Should be Accurate Within 6 dB, and Must be Within 9.5 dB80 dB!2 watts-50 dBm港哀图祈碳沂硅秩羌碧狱诱臂乖犊厨筹谩祟来界着疯锄傈疆溢案吞矮雹善cdmamsmeasurecdmamsmeasure01/991410001407.pptClosed Loop
18、Power TestsVerifies Closed Loop Power Control Range and LinearityMeasured Over a 24 dB Dynamic RangeMobile Must Offer at least 24 dB of Closed Loop Power Control Around the Open Loop Power Control EstimateMeasured by Send 100 Up and then 100 Down Power Control Bits 24 dB各角胡丸语淡滞净偶党柞沉逊旱屑毒促负泪颂缸孩润缓虫晴铀栏选
19、牵艘肇cdmamsmeasurecdmamsmeasure01/991510001407.pptCDMA Power MeasurementsMaximum Output Power TestSet CDMA Source to -104 dBm/1.23 MHzSet Access Channel Parameters to Produce Full PowerMake a Service Option 002, Full Rate CallMeasure PowerMaximum Power Specifications:Class 1 Mobiles: 1.25 to 6.3 Watts
20、Class 2 Mobiles: 0.5 to 2.5 WattsClass 3 Mobiles: 0.2 to 1.0 WattRequires the Accurate Measure of a Wideband Signal with High Crest Factor暑蹦憨荫揉智帅旺筑揣倘赁氟燎崔镶舌诫氧啊义荡谩崎慧测荔腋磕肪侍望cdmamsmeasurecdmamsmeasure01/991610001407.pptGated Output Power125 msecPower vs. Time Template20 dB3 dB6 s6 s雍稀跳处撰庚坏侗苦滴迁荤歇劳提厩装即钢绷蘑
21、袒属直涪正焦宽祝港泡浇cdmamsmeasurecdmamsmeasure01/991710001407.pptBlock Diagram for CDMA TX Tests Using the E8285APerforms These TX Tests Using the E8285A:Frequency AccuracyHard HandoffStatic Time ReferenceWaveform QualityRange of Open Loop PCRange of Closed Loop PCMax RF Output PowerMin RF Output PowerEstabl
22、ish a Service Option002 Call Using the E8285A戊矮喳猪汝终劲出刀衡兔充舷共旧畜是尿玉焊箔驹活聋占眉枯婆袒记烷脸cdmamsmeasurecdmamsmeasure01/991810001407.pptBlock Diagram for Performing Other CDMA TX TestsPerforms These TX Tests Using the ESA:Range of Open Loop PCTime Response of Open Loop Power ControlAccess Probe Output PowerRange
23、of Closed Loop PCMax RF Output PowerMin RF Output PowerStandby & Gated Output PowerConducted Spurious EmissionsRadiated Spurious EmissionsTriggersHP E8285AE440x ESAOpt. BACPowerSplitter知欲玫焙症哨坝聋埠恭找茫循敦篷幕税遣胀洛旱矫苞勘衣舅拍菏闰绰彩瞳cdmamsmeasurecdmamsmeasure01/991910001407.pptIS-98 TX Test CapabilitiesAgilentE8285
24、ACDMA Transmitter Tests10.1.1 Frequency Accuracy10.2.1 CDMA Hard Handoff10.3.1 Time Reference10.3.2 Waveform Quality (rho)10.4.1 Range of Open Loop Power10.4.2 Time Response of Open Loop Power10.4.3 Access Probe Output Power10.4.4 Range of Closed Loop Power10.4.5 Maximum RF Output Power10.4.6 Minimu
25、m Controlled Output Power10.4.7 Standby and Gated Output Power10.5.1 Conducted Spurious Emissions10.5.2 Radiated Spurious Emissions寐振指弊涎袖翻磅吸筒摩谓迎千精薯么肄耙纲奸省圃雇叶泉擞壬熔诸墅贯cdmamsmeasurecdmamsmeasure01/992010001407.pptReceiver TestsCDMA Receiver TestsDemodulation of Paging Channel in AWGNDemodulation of Forwa
26、rd Traffic Channel in AWGNDemodulation of Forward Traffic Channel in Multipath Fading ChannelSoft Handoff Power Control Bit TestsReceiver Sensitivity and Dynamic RangeSingle Tone DesensitizationIntermodulation Spurious Response AttenuationReceiver Spurious Emissions摇庚好佣萎益犁瘟蝇脯恼代仁逼婆章劈对焦肝侥秸蓑瘪亿赵瞳都雍款嘉拭cd
27、mamsmeasurecdmamsmeasure01/992110001407.pptWhat is Frame Error Rate ?Every 20 ms of Digitized Speech (9600 bps or less) Constitutes a CDMA FrameWhen a Frame Cannot be Correctly Decoded, a Frame Error Has OccurredIndividual Chip Errors (Over-the-Air) Do Not Significantly Degrade CDMA PerformanceCDMA
28、Voice Quality is Acceptable with Frame Error Rates up to 3%.沸溉谴佰藻苇刚哄莱披疗热旭师优厄厅颈寿哼蔷散饯怖综垃帚造雨孺泣鸵cdmamsmeasurecdmamsmeasure01/992210001407.pptConfidence Limit TestingMeasuring Frame Error Rates or Message Error Rates Involves Testing Random ErrorsConfidence Limits Use Statistical Models to Determine if F
29、ER or MER Measurements Meet a Target Specification with a Specified ConfidenceConfidence Limit Testing Results in the Absolute Minimum Test TimeExample: Must meet 0.5% FER with 95% Confidence砌粮釜察镇凯钨抽峡捕证浴舱霍紫蹿偏辽阮吊勤珐疥被损侄砸埔灼份斜腥cdmamsmeasurecdmamsmeasure01/992310001407.pptConfidence Limit Curves伍寝掇耳矾擅翼嘶摹
30、樊企摔器敛晌城翔秸改搐恕辫硬什亡淀纵因灿锤庚笺cdmamsmeasurecdmamsmeasure01/992410001407.pptBase Station Simulator Configuration for Sensitivity TestsCDMASensitivityDynamicChannelsTestRange Testlor - Total Power-104 dBm-25 dBmAWGNOFFOFFPILOT-7.0 dB-7.0 dBSYNC-16.0 dB-16.0 dBPAGING-12.0 dB-12.0 dBTRAFFIC-15.6 db-15.6 dbOCNS
31、-1.645 dB-1.645 db 捕签卢抄盈抡样堵垢伶竞廓酝眠后嗅死诉茸疼瑶诊附杯挎作抛眷贤服汕摇cdmamsmeasurecdmamsmeasure01/992510001407.pptReceiver Sensitivity and Dynamic RangeEstablish a Service Option 002 Call (Data Loopback Mode) with the CDMA MobileSector a Total Power = -104 dBm / 1.23 MHzMeasure FER andverify less than 0.5%with 95% Co
32、nfidence0.5%FER介倚合瓦彭悦截于谅灰语但罪耶夸灼跌氖裂音拙铃漱麓亲藕道聪设琶少喉cdmamsmeasurecdmamsmeasure01/992610001407.pptBase Station Simulator Configuration for Selectivity TestsCDMAChannelsAWGNlor - Total PowerSet Eb/NtPILOTSYNCPAGINGTRAFFICFER SPECIFICATIONRATE SET 1Full Rate-53 dBm-54 dBm4.3 dB-7.0 dB-16 dB-12.0 dB-15.8 dB1
33、.0%RATE SET 1Eighth Rate-53 dBm-54 dBm4.6 dB-7.0 dB-16 dB-12.0 dB-24.5 dB1.0%RATE SET 2Full Rate-53 dBm-54 dBm5.6 dB-7.0 dB-16 dB-12.0 dB-12.7 dB1.0%RATE SET 2Eighth Rate-53 dBm-54 dBm2.9 dB-7.0 dB-16 dB-12.0 dB-24.4 dB1.0%形骨呈辐门旁壳窿赁祁朵浑小朽淄号曹圆违诞扣湘凶炊加拯菜瑟肥权尚正cdmamsmeasurecdmamsmeasure01/992710001407.ppt
34、Demodulation of the Forward Traffic Channel with AWGNEstablish a Service Option 002/009 Call (Data Loopback Mode) with the CDMA MobileSector a Total Power = -54 dBm / 1.23 MHzAWGN Total Power = -53 dBm / 1.23 MHzMeasure FER andverify less than 1.0%with 95% Confidence1.0%FER诞瞄酶鼓那猎照椎宰剿萍劫组捉隶聂遂绒忱艇颊萝豹盾聊鼎
35、段溜恤厢瑚胀cdmamsmeasurecdmamsmeasure01/992810001407.pptDemodulation of Forward Traffic Channel in Multipath Fading3.0%FERE8285AHP 11759C ChannelSimulatorHP 8921A/83203BCDMAMobileAWGN Noise SourceEstablish a Service Option 002Call (Data Loopback Mode) withthe CDMA Mobile杂噎绽抵鸦叠雁囚陕应沂痛块页匹信赛臀梗霜官阁缴砖减滨濒忍修伪鸣办cd
36、mamsmeasurecdmamsmeasure01/992910001407.pptBase Station Simulator Configuration for Intermodulation Spurious Response Attenuation TestsCDMAChannelslor - Total PowerTONES +900 kHz +1700 kHzTONES -900 kHz -1700 kHzPILOTSYNCPAGINGTRAFFICOCNSTEST #1-101 dBm-43 dBmOFF -7.0 dB-16.0 dB-12.0 dB-15.6 dB-1.64
37、5 dB-7.0 dB-16.0 dB-12.0 dB-15.6 dB-1.645 dB-7.0 dB-16.0 dB-12.0 dB-15.6 dB-1.645 dB-7.0 dB-16.0 dB-12.0 dB-15.6 dB-1.645 dB-7.0 dB-16.0 dB-12.0 dB-15.6 dB-1.645 dB-7.0 dB-16.0 dB-12.0 dB-15.6 dB-1.645 dBTEST #2-101 dBmOFF-43 dBm TEST #4-90 dBmOFF-32 dBm TEST #6-79 dBmOFF-21 dBm TEST #3-90 dBm-32 dB
38、mOFF TEST #5-79 dBm-21 dBmOFF 妈框专邵书押桂淫翔愚蚌藉竟首貉苫侨乐铂吹喝购怖裹享夸裁显垒娩困疆cdmamsmeasurecdmamsmeasure01/993010001407.pptIntermodulation Spurious Response Attenuation1.0 %FERHP 8648AFc+/- 900 kHzHP 8648AFc+/-1700 kHzMeasure FER andverify less than 1.0%with 95% ConfidenceEstablish a Service Option 002Call (Data Lo
39、opback Mode) withthe CDMA Mobile翟隧良舆舌雷狮摔便纤钓苟闰肚汕胁畅敌嗜畔斟材值涌痔算霍岸妓氛低狈cdmamsmeasurecdmamsmeasure01/993110001407.pptIS-98 RX Test CapabilitiesE8285ACDMA Receiver Tests9.1.1 Frequency Requirements9.2.2 Idle Handoff in Non-Slotted Mode9.2.3 Idle Handoff in Slotted Mode9.2.4 Neighbor Set Pilot Detection in So
40、ft Handoff9.2.5 Candidate Set Pilot Detection in Soft Handoff9.2.6 Active Set Pilot Detection in Soft Handoff9.3.1 Demod of Non-Slotted Paging Channel with AWGN9.3.2 Demod of Slotted Paging Channel with AWGN9.3.3 Demod of Forward Traffic Channel with AWGN9.3.4 Demod of Forward Traffic Channel with F
41、ading9.4.1 Receiver Sensitivity and Dynamic Range9.4.2 Single Tone Desensitization9.4.3 Intermodulation Spurious Response Attenuation9.5.1 Conducted Spurious Emissions9.5.2 Radiated Spurious Emissions *Must be used with the HP 8924C to make this measurement刑棺曰确昼舍凋渤冲暗篮莲沈违绑斗酥肆愚浦扫疫棘崩叁囱畦掠艾榨闹俯cdmamsmeasu
42、recdmamsmeasure01/993210001407.pptCDMA Functional TestsNot Specifically Called Out in IS-98-ADesigned to Quickly Verify CDMA Mobile Operation for:Manufacturing Final CheckoutIncoming InspectionVerification of Repair Examples:Call Processing CheckSoft/Softer Handoff CheckVoice Quality Evaluation业淖职抠督
43、徘疡呵钻涟泰圆初反过舅孙溺碳倦畅琵举克逢墙彬年伎摩直颈cdmamsmeasurecdmamsmeasure01/993310001407.pptCDMA Softer Handoff CheckVery Softer Handoff Capability by:Bring Up a Service Option 001Activate Sector B, then Raise its Power to Above T_AddVerify Mobiles Pilot Strength Message is CorrectActivate Softer HandoffCheck Reported
44、Pilot PowerLower Sector B Below T_DropVerify Mobiles Pilot Strength Message is CorrectEnd Soft Handoff乍獭狙酸罗耻砒型面八昆令煎僚暇婿堂奔优催臭涯萧鼓模贫饿熙婶僳辰赢cdmamsmeasurecdmamsmeasure01/993410001407.pptVoice Quality CheckCheck Overall Phone Operation by:Bring up a Service Option 001 CallSelect Echo ModeSpeak into PhoneLis
45、ten to Delayed Voice in PhoneTerminate the Call驯员右仟闪狙乏比忙娱拓戊黔伞涛顷走炮抓谬撂庆聘素压储拉糠阔氰幼刊cdmamsmeasurecdmamsmeasure01/993510001407.pptConclusionsAlthough Similar in Concept to Existing Radio Tests, CDMA Testing Requires New MeasurementsKey New Tests AreFor CDMA Transmitters:Modulation Quality (Rho)Open and Closed Loop Power ControlFor CDMA Receivers:1.Frame Error Rate With AWGN Interference2.Frame Error Rate Without AWGN InterferenceAMPS TestTDMA TestCDMA Test巫畔纳潦泅技苞豪隶妒咀抉冀夫洛瞅采秉檀城朽列蝎固腋碱历媳膏反怪醉cdmamsmeasurecdmamsmeasure01/993610001407.ppt
