ETSI EN 301 126-2-4 V1.1.1 (2000-09)

Fixed Radio Systems; Conformance testing; Part 2-4: Point-to-Multipoint equipment; Test procedures for FH-CDMA systems

DEN/TM-04026-2-4

Fiksni radijski sistemi – Preskušanje skladnosti – 2-4. del: Oprema tipa točka-več točk – Preskusni postopki za sisteme FH-CDMA

General Information

• Status: Published
• Publication Date: 26-Nov-2000
• Technical Committee: TM 4 - TM Fixed Radio Systems
• Current Stage: 12 - Completion
• Due Date: 01-Dec-2000
• Completion Date: 27-Nov-2000
• Ref Project: SIST EN 301 126-2-4 V1.1.1:2003 - Fixed Radio Systems; Conformance testing; Part 2-4: Point-to-Multipoint equipment; Test procedures for FH-CDMA systems

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Fixed Radio Systems; Conformance testing; Part 2-4: Point-to-Multipoint equipment; Test procedures for FH-CDMA systems33.060.30Radiorelejni in fiksni satelitski komunikacijski sistemiRadio relay and fixed satellite communications systemsICS:Ta slovenski standard je istoveten z:EN 301 126-2-4 Version 1.1.1SIST EN 301 126-2-4 V1.1.1:2003en01-december-2003SIST EN 301 126-2-4 V1.1.1:2003SLOVENSKI
STANDARD



SIST EN 301 126-2-4 V1.1.1:2003



ETSIEN301126-2-4V1.1.1(2000-11)EuropeanStandard(Telecommunicationsseries)FixedRadioSystems;Conformancetesting;Part2-4:Point-to-Multipointequipment;TestproceduresforFH-CDMAsystemsSIST EN 301 126-2-4 V1.1.1:2003



ETSIETSIEN301126-2-4V1.1.1(2000-11)2ReferenceDEN/TM-04026-2-4Keywordsarchitecture,DRRS,FWA,multipoint,radio,RLL,SDH,testing,transmissionETSI650RoutedesLuciolesF-06921SophiaAntipolisCedex-FRANCETel.:[phone]Fax:[phone]SiretN°34862356200017-NAF742CAssociationàbutnonlucratifenregistréeàlaSous-PréfecturedeGrasse(06)N°7803/88ImportantnoticeIndividualcopiesofthepresentdocumentcanbedownloadedfrom:http://www.etsi.orgThepresentdocumentmaybemadeavailableinmorethanoneelectronicversionorinprint.Inanycaseofexistingorperceiveddifferenceincontentsbetweensuchversions,thereferenceversionisthePortableDocumentFormat(PDF).Incaseofdispute,thereferenceshallbetheprintingonETSIprintersofthePDFversionkeptonaspecificnetworkdrivewithinETSISecretariat.Usersofthepresentdocumentshouldbeawarethatthedocumentmaybesubjecttorevisionorchangeofstatus.InformationonthecurrentstatusofthisandotherETSIdocumentsisavailableathttp://www.etsi.org/tb/status/Ifyoufinderrorsinthepresentdocument,sendyourcommentto:[e-mail]opartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.©EuropeanTelecommunicationsStandardsInstitute2000.Allrightsreserved.SIST EN 301 126-2-4 V1.1.1:2003



ETSIETSIEN301126-2-4V1.1.1(2000-11)3ContentsIntellectualPropertyRights.4Foreword.41Scope.52References.53Definitions,symbolsandabbreviations.63.1Definitions.63.2Symbols.63.3Abbreviations.64Generalcharacteristics.64.1Equipmentconfiguration.64.1.1Systemconfiguration.74.2Transmittercharacteristics.104.2.1Maximumnominaloutputpower.104.2.2Minimumnominaloutputpower(ifapplicable).114.2.3AutomaticTransmitPowerControl(ATPC).124.2.4RemoteTransmitPowerControl(RTPC).124.2.5Frequencyaccuracy.134.2.6RFspectrummask.134.2.7Remotefrequencycontrol.144.2.8Spectrallinesatthesymbolrate.144.2.9Spuriousemissions(external).144.3Receivercharacteristics.164.3.1Inputlevelrange(ifapplicable).164.3.2Spuriousemissions.174.4Systemcharacteristics.174.4.1Dynamiclevelrange(ifapplicable).174.4.2BERasafunctionofreceiverinputsignallevel.184.4.3EquipmentbackgroundBER(ifapplicable).194.4.4Interferencesensitivitytests.194.4.4.1Co-channelinterferencesensitivity.194.4.4.2AdjacentRFchannelinterferencesensitivity.214.4.4.3CWSpuriousinterference.22History.24SIST EN 301 126-2-4 V1.1.1:2003



ETSIETSIEN301126-2-4V1.1.1(2000-11)4IntellectualPropertyRightsIPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.TheinformationpertainingtotheseessentialIPRs,ifany,ispubliclyavailableforETSImembersandnon-members,andcanbefoundinETSISR000314:"IntellectualPropertyRights(IPRs);Essential,orpotentiallyEssential,IPRsnotifiedtoETSIinrespectofETSIstandards",whichisavailablefromtheETSISecretariat.LatestupdatesareavailableontheETSIWebserver(http://www.etsi.org/ipr).PursuanttotheETSIIPRPolicy,noinvestigation,includingIPRsearches,hasbeencarriedoutbyETSI.NoguaranteecanbegivenastotheexistenceofotherIPRsnotreferencedinETSISR000314(ortheupdatesontheETSIWebserver)whichare,ormaybe,ormaybecome,essentialtothepresentdocument.ForewordThisEuropeanStandard(Telecommunicationsseries)hasbeenproducedbyETSITechnicalCommitteeTransmissionandMultiplexing(TM).Thepresentdocumentispart2-4ofamulti-partdeliverablecoveringtheFixedRadioSystems;Conformancetesting,asidentifiedbelow:Part1:"Point-to-pointequipment-Definitions,generalrequirementsandtestprocedures";Part2-1:"Point-to-Multipointequipment;Definitionsandgeneralrequirements";Part2-2:"Point-to-Multipointequipment;TestproceduresforFDMAsystems";Part2-3:"Point-to-Multipointequipment;TestproceduresforTDMAsystems";Part2-4:"Point-to-Multipointequipment;TestproceduresforFH-CDMAsystems";Part2-5:"Point-to-Multipointequipment;TestproceduresforDS-CDMAsystems";Part3-1:"Point-to-Pointantennas-Definitions,generalrequirementsandtestprocedures";Part3-2:"Point-to-Multipointantennas-Definitions,generalrequirementsandtestprocedures".Thepresentdocumentdefinesharmonizedtestmethodsfortheconformancetestingofpoint-to-multipointfixedradiosystemsapplyingfrequencyhoppingcodedivisionmultipleaccessmethod(FH-CDMA).Itshouldbenotedthatthispart2-4canonlybeappliedinconjunctionwithpart2-1.EN301126-2-1[1]definesthetypeapprovaltestingrequirements(definitionsandgeneralrequirements)forradiospecificparametersrequireddirectlybytherelevantEN/ETSforpoint-to-multipointsystems.AnnexAofpart2-1containsthesupplierdeclaration,annexBcontainsthetestreportformat.Parts2-2,2-3and2-5containtheappropriatetestproceduresfortheotheraccessmethods.Itisrecommendedthatwhereaclarificationofatestprocedureoranagreedtestprocedureisrequired,thisshouldbedescribedonthefinalpageofthetestreporttitled"Additionalinformationsupplementarytothetestreport".NationaltranspositiondatesDateofadoptionofthisEN:24November2000DateoflatestannouncementofthisEN(doa):28February2001DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):31August2001DateofwithdrawalofanyconflictingNationalStandard(dow):31August2001SIST EN 301 126-2-4 V1.1.1:2003



ETSIETSIEN301126-2-4V1.1.1(2000-11)51ScopeThepresentdocumentdetailsstandardizedtestproceduresforconformancetestingofequipmentforPoint-to-Multipoint(P-MP)digitalradiorelaysystemsapplyingfrequencyhoppingcodedivisionmultipleaccessmethod(FH-CDMA).StandardizedproceduresarerequiredinordertofulfilCEPT/ERC/DEC/(97)10[1]onthemutualrecognition,withinCEPT,oftheresultsofconformancetestsonequipmentcarriedoutinindividualCEPTCountries.FurthermoretheproceduresdescribedinthepresentdocumentarerelevanttobeabletofulfiltheConformanceassessmentproceduredescribedinChapterIIoftheR&TTEDirective1999/5/EC[2]inordertodemonstratethecomplianceoftheDRRSwiththerelevantessentialrequirementsidentifiedinArticle3.2oftheR&TTEDirective.ThepresentdocumentisintendedtobeappliedinconjunctionwithEN301126-2-1[1]andinconjunctionwiththeindividualequipmentENs/ETSsdescribingFH-CDMAmethodsandwillenablecommonalityoftestresults,irrespectiveoftheAccreditedLaboratorycarryingoutthetest.TheconformancetestsdescribedinthepresentdocumentarethoserelatedtoradiospecificparametersrequireddirectlybytherelevantradiorelayENs/ETSs.ConformanceteststootherboundaryEN/ETS(e.g.thoseforsysteminput/outputinterfacesandrelatedbasebandprocess)areoutsidethescopeofthepresentdocument.2ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.• Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)ornon-specific.• Foraspecificreference,subsequentrevisionsdonotapply.• Foranon-specificreference,thelatestversionapplies.• Anon-specificreferencetoanETSshallalsobetakentorefertolaterversionspublishedasanENwiththesamenumber.[1]ETSIEN301126-2-1:"FixedRadioSystems;Conformancetesting;Part2-1:Point-to-Multipointequipment;Definitionsandgeneralrequirements".[2]Directive1999/5/ECoftheEuropeanParliamentandofthecouncilof9March1999onradioequipmentandtelecommunicationsterminalequipmentandthemutualrecognitionoftheirconformity.[3]EN60835:"MethodsofMeasurementforEquipmentusedinDigitalMicrowaveRadioTransmissionSystems".[4]CEPT/ERCRecommendation74-01:"Spuriousemissions".[5]CEPT/ERC/DEC(97)10ERCDecisionof30June1997onthemutualrecognitionofconformityassessmentproceduresincludingmarkingofradioequipmentandradioterminalequipment.SIST EN 301 126-2-4 V1.1.1:2003



ETSIETSIEN301126-2-4V1.1.1(2000-11)63Definitions,symbolsandabbreviations3.1DefinitionsForthepurposesofthepresentdocument,seethetermsanddefinitionsgiveninEN301126-2-1[1].3.2SymbolsForthepurposesofthepresentdocument,seethesymbolsgiveninEN301126-2-1[1].3.3AbbreviationsForthepurposesofthepresentdocument,seetheabbreviationsgiveninEN301126-2-1[1].4GeneralcharacteristicsWherenecessary,forbetterunderstandingoftheapplicationoftestmethods,referenceismadetoEN60835[3](Testmethods).4.1EquipmentconfigurationCSCCSCRSRSAnotherCRSmaybeconnectedtothesameCCSFGTSTETSTETSTETEGGGTETSTEGTSTEGBasebandinterfacereferencepoints/FGdirectionalantennaomnidirectionalorsectorantennaNetworkNodeFigure1:GeneralSystemArchitectureSIST EN 301 126-2-4 V1.1.1:2003



ETSIETSIEN301126-2-4V1.1.1(2000-11)7MODULATORTRANSMITTERZ'E'A'TRANSMITRFFILTERB'BRANCHINGC'D'FEEDERCFEEDERBRANCHINGRFFILTERD(*)BRECEIVEARECEIVEREDEMODULATORZ(*)NOFILTERINGINCLUDED(**)ALTERNATIVECONNECTIONATRF,IFORBASEBAND(*)Figure2:RFSystemblockdiagram4.1.1SystemconfigurationP-MPequipmentisdesignedtooperateasanaccesssystemconnectedtoanetworknode(e.g.localswitch)anduserterminalequipment's(figure1).Theindividualconformancetestsaremadeinasinglelinkdirection(figure2)butforcertaintests,e.g.forequipmenttosetupsignalling,bothforwardandreverselinkshavetooperate,theminimumequipmentarrangementfortestswithonlyonesubscriberisshowninfigure3,wheretheforwardandreturnRFpathsareseparatedbyapairofduplexersandseparateattenuatorsareinsertedineachpath.Intheabsenceofanymorespecificinstructionsfromthesupplieritissuggestedthatthelinksareoperatedatthreshold(RSL)+ndBwherenishalfofthelinkdynamicrangeexceptwhenthereceiverisbeingtested.Theotherreceiver(s)shouldcontinuetobeoperatedatthreshold(RSL)+ndB.CalibratedsplittersordirectionalcouplerswillbeinsertedatpointsA,B,CandD(figure3)asrequiredfortheindividualtests,eithertoprovidetestpointsorsourcesofinterferingsignals.AttenuatorAttenuatorDuplexerDuplexerTSCRS'TStransmit'path'CRStransmit'pathInterfaceunitCDBABitPatternGenerators,biterrorratetesters,callgeneratorsetc.asrequiredBitPatternGenerators,biterrorratetesters,callgeneratorsetc.asrequiredOMCFigure3:TestconfigurationforasingleTerminalStationNOTE1:CalibratedsplittersordirectionalcouplerswillbeinsertedatpointsA,B,CandDasrequiredfortheindividualtests,eitherastestpointsorassourcesofinterferingsignals.SIST EN 301 126-2-4 V1.1.1:2003



ETSIETSIEN301126-2-4V1.1.1(2000-11)8NOTE2:WhenmeasuringtheTStransmittertodemonstratethatitmeetstheemissionmaskandspuriousemissionslimits,thesplitternetworkwillhaveonlyoneTSconnectedandthisnetworkmayberemoved.NOTE3:TheP-MPsystemstobetestedareduplexsystemsandfeaturessuchastime/frequencysynchronizationandAPCrequirebothpathstobefunctioningcorrectly.Toensurethattheresultsofmeasurementsoneithertheforwardorreturnpaths,e.g.receiverRSL,arenotinfluencedbyconditionsintheotherpathitmaybenecessarytoprovidelowerattenuation,orraisethetransmitterpower,inthisotherpath.Intheabsenceofanymorespecificinstructionsfromthesupplieritissuggestedthatthisotherpathisoperatedatthreshold(RSL)+ndB.Allthetestprocedures,presentedinthefollowingsub-sectionsbelow,shallapplytobothCRS(s)andTS(s),unlessotherwisestated.Unlessotherwisestated,allessentialrequirements(ER)testsshallbeundertakenatthenominalandextremesofpowersupplyandenvironmentalparametersandatmaximumoutputpower.RFpower,spectrumandfrequencymeasurementsshallbeundertakenatlow,mediumandhighfrequencieswithinthedeclaredrangeoffrequencies.TheseRFfrequenciesmaybeselectedbyremotecontrolorotherwise.Centralorremotestationsincorporatingintegralantennasshallbeprovidedwithanappropriatecoaxialorwaveguidetransitionbythesupplierinordertofacilitatethemeasurementsdescribed.FortestswherethesimultaneoususeofseveralTSsisnecessary,thenanarrangementsimilartothatshownfigure4isrequired.Toenablecommunicationthetrafficloadmaybesimulatedandfacilitiessuchasremoteloopbackmaybeusedtoroutetrafficthroughthesystem.ThisarrangementensuresthatthesystemoperatesinanormalmannersimilartoitsconfigurationformeasurementssuchastransmittermaskandRSL.Forsystemswhereitisnecessarytosimulatetrafficloadanarrangementsimilartofigure4willbenecessary.Thetrafficloadissimulatedandfacilitiessuchasremoteloopbackmaybeusedtoroutetrafficthroughthesystem.Ingeneralthesametestpatternmaybeusedonalloftheinputssinceitwillbenormalforthedatatobeeitherscrambledorencryptedbeforepassingovertheairinterface.ThisistoensurethatthesystemisoperatinginanormaloperatingconfigurationformeasurementssuchasTransmittermaskandRSL.SIST EN 301 126-2-4 V1.1.1:2003



ETSIETSIEN301126-2-4V1.1.1(2000-11)9AttenuatorAttenuatorDup-Dup-TSTSAsmanyTSsystem.TSTSCRS'TStransmit'path'CRStransmit'pathInterfaceunitCDBABitPatternGenerators,biterrorratetesters,callgeneratorsetc.asrequiredBitPatternGenerators,biterrorratetesters,callgeneratorsetc.asrequiredNwaysplitternetworkincludingattenuatorsetc.asrequiredforlexerlexerisolationbetweenTSasrequiredtoloadtheNOTE:TDDsystemsmayonlyrequireasinglepathwithoneattenuator.Figure4:TestconfigurationformultipleterminalstationsForsystemswhereseparatelinksarerequiredfordifferenthoppingsequencestheconfigurationoffigure5maybeneeded.InthiscaseaCRSislinkedtooneorseveralTSs.NOTE:Seeappropriatenotesbelowfigure3.SIST EN 301 126-2-4 V1.1.1:2003



ETSIETSIEN301126-2-4V1.1.1(2000-11)10OMCOMCCRSCRSCRSCRSCRSTSTSTSTSAtt.Att.Att.Att.Att.Att.Patterngenerators,BERtester,CallTester,etc.asrequiredPatterngenerators,BERtester,CallTester,etc.asrequiredAsmanyTsasrequiredfortestNwaycouplerNwaycouplerInterfaceboxDup/otherABCDDup/otherCRStransmitTStransmitFigure5:TestconfigurationformultipleCRSandTSNOTE:Seeappropriatenotesbelowfigure3.Fortestpurposesitmayberequiredtosetthefrequencyhoppingpatterninoneofthefollowingconditions:-thenormalwayofoperation,asdeclaredbythesupplier.Thissequencemayberandomordeterministic,howeveritshallgothroughallthefrequencysub-channelswithintheband;-somegivenknownhoppingsequenceforsomespecifictest(s);-ina'singlefrequencysequence'-wherethesystemhopsonthesamefrequency;-inaCWmode,nohoppingisperformed.Ifpossible,thenormalwayofoperationispreferred,howeversometestsmayrequireadifferentconfiguration.4.2Transmittercharacteristics4.2.1MaximumnominaloutputpowerObjective:VerifythatthehighestaverageRFoutputpowermeasuredduringatransmissionburstatreferencepointB'orC'(figure6)iswithinthesupplier'sdeclaredvalue,plus/minustheEN/ETStolerance,anddoesnotexceedtheEN/ETSmaximumvalue.TestInstruments:-AveragePowerMeterwithatimegatingfunctionoranappropriatealternate.SIST EN 301 126-2-4 V1.1.1:2003



ETSIETSIEN301126-2-4V1.1.1(2000-11)11TestConfiguration:Z'E'A'B'(C')ModulatorTransmitterTransmitRFfilter(branching)AttenPowermeterFigure6:TestconfigurationformaximumRFoutputpowerCRS→→→→TSdirectionIftransmissionisnotcontinuousapowermeterwithatimegatingfunctionoraproperlycalibratedSpectrumAnalyserwiththepeakholdfunctionenabledwillberequiredtomakethismeasurement.Anotheroptionistodividetheresultbythetransmitterdutycycledeclaredbythesupplier.NOTE:Tosupportthepowerlevelmeasurements,itmaybeusefultoincludetwodefinitions:1)AveragePower:Thein-phase(dissipative)componentoftheinstantaneouscomplexproductofvoltageandcurrent,averagedoverasequenceofcyclesofthewave;2)MaximumAveragePower:Thehighestvalueofaveragepower.TestProcedure:SettheCRStoanormalhoppingmodewiththemaximumnumberofsubchannelsactive.Withthetransmitterpowerlevelsettomaximum,theaverageoutputpowerofthetransmitteratpointB'orC'istobemeasured.TS→→→→CRSdirectionForthepurposeofthetestsbelow,theequipment(TS)shallprovidethemaximumoutputpowerstatedbythesupplier.MeasurementswillbemadeonasingleTS.Withthetransmitterpowerlevelsettomaximum,themaximumaverageoutputpowerofthetransmitteratpointB'(figure6)duringthetransmissionburstistobemeasured.IftransmissionisnotcontinuousapowermeterwithatimegatingfunctionoraproperlycalibratedSpectrumAnalyserwiththepeakholdfunctionenabledwillberequiredtomakethismeasurement.Anotheroptionistodividetheresultbythetransmitterdutycycledeclaredbythesupplier.Ifapplicable,settheTSoutputpowertomaximalvalue.TestConfiguration:AcalibrateddirectionalcouplerisinsertedatreferencepointDinthetestconfigurationoffigure4.TestProcedure:SettheTStoanormalhoppingmodeorasinglefrequencymode.TheTStransmitterismodulatedwithaPRBSsignal.TheoutputpoweroftheTSatpointB'orC'shallnotexceedthemaximumoutputpowerspecifiedbytherelevantstandard.4.2.2Minimumnominaloutputpower(ifapplicable)Objective:Verifythattheminimumoutputaveragepowerofequipment,fittedwithpowercontrolcircuitry,measuredatreferencepointB'orC'(figure6)iswithinthespecifiedlimitofthedeclaredvalue.TestInstruments:Asformaximumpowertest.TestConfiguration:Asformaximumpowertest.SIST EN 301 126-2-4 V1.1.1:2003



ETSIETSIEN301126-2-4V1.1.1(2000-11)12TestProcedure:WiththetransmitterpowerlevelsettominimumthetransmitteroutputatB'(C')istobemeasured.4.2.3AutomaticTransmitPowerControl(ATPC)ATPCisanoptionalfeature.However,whenfitted,theminimumandmaximumoutputaveragepowerlevelsshallbechecked.Inaddition,satisfactoryoperationoftheautomaticfacilityshallbedemonstrated.Objective:WhenATPCisimplemented,thecontrolloopistobecheckedforsatisfactoryoperationi.e.:Txoutputpowerisrelatedtotheinputlevelatthefarreceiver.TestInstruments:Asformaximumpowertest.TestConfiguration(Automatic):ModulatorTransmitterwithATPCDirectionalCouplerPowerMeterAtt.Att.Z'E'A'B'(C')Tx-RF-FilterTx-RF-FilterReceiverB(C)AFeedbackControlChannelFigure7:TestconfigurationforATPCTestProcedure:Setthesystematitsnormalhoppingmode.WiththemaximumtransmitteroutputlevelselectedtheaveragepowerlevelatpointB'(C')istobemeasured.Thetestistoberepeatedwithminimumtransmitteroutputpowerselected.ThetransmitteroutputlevelismeasuredatpointB'orC'.AttenuatorB(figure7),initiallysettoproducetheminimumtransmitteroutputlevelistobeadjusteduntilthetransmitterreachesitsmaximumoutputlevel.Throughoutthetransmitter'spowerrange,thereceiverinputlevelistobemaintainedwithinthelimitsstatedintherelevantETSorsuppliersguaranteedoperatingcriteria.Thetestistoberepeatedtoverifythattheautomaticpowercontrolperformance,betweenmaximumtransmitterpowerandminimumtransmitterpowermeetst
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