ETSI EN 300 471-1 V1.2.1 (2000-12)

ElectroMagnetic Compatibility and Radio Spectrum Matters (ERM); Land Mobile Service; Rules for Access and the Sharing of common used channels by equipment complying with EN 300 113; Part 1: Technical characteristics and methods of measurement

REN/ERM-RP02-049-1

Elektromagnetna združljivost in zadeve v zvezi z radijskim spektrom (ERM) – Pravila za dostopanje in souporabo skupno uporabljanih kanalov s pomočjo opreme, ki ustreza EN 300 113 – 1. del: Tehnične karakteristike in merilne metode

General Information

• Status: Published
• Publication Date: 10-May-2001
• Technical Committee: ERM RP02 - Land Mobile Radio A
• Current Stage: 12 - Completion
• Due Date: 04-May-2001
• Completion Date: 11-May-2001
• Ref Project: SIST EN 300 471-1 V1.2.1:2003 - ElectroMagnetic Compatibility and Radio Spectrum Matters (ERM); Land Mobile Service; Rules for Access and the Sharing of common used channels by equipment complying with EN 300 113; Part 1: Technical characteristics and methods of measurement

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.SRPRþMRElectroMagnetic Compatibility and Radio Spectrum Matters (ERM); Land Mobile Service; Rules for Access and the Sharing of common used channels by equipment complying with EN 300 113; Part 1: Technical characteristics and methods of measurement33.100.01Elektromagnetna združljivost na splošnoElectromagnetic compatibility in general33.060.99Druga oprema za radijske komunikacijeOther equipment for radiocommunicationsICS:Ta slovenski standard je istoveten z:EN 300 471-1 Version 1.2.1SIST EN 300 471-1 V1.2.1:2003en01-december-2003SIST EN 300 471-1 V1.2.1:2003SLOVENSKI
STANDARD



SIST EN 300 471-1 V1.2.1:2003



ETSIEN300471-1V1.2.1(2001-05)EuropeanStandard(Telecommunicationsseries)ElectromagneticcompatibilityandRadiospectrumMatters(ERM);LandMobileService;RulesforAccessandtheSharingofcommonusedchannelsbyequipmentcomplyingwithEN300113;Part1:TechnicalcharacteristicsandmethodsofmeasurementSIST EN 300 471-1 V1.2.1:2003



ETSIETSIEN300471-1V1.2.1(2001-05)2ReferenceREN/ERM-RP02-049-1KeywordsEMC,mobile,PMR,radio,serviceETSI650RoutedesLuciolesF-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.©EuropeanTelecommunicationsStandardsInstitute2001.Allrightsreserved.SIST EN 300 471-1 V1.2.1:2003



ETSIETSIEN300471-1V1.2.1(2001-05)3ContentsIntellectualPropertyRights.5Foreword.5Introduction.51Scope.62References.63Definitions.74General.74.1Sharingspeech/data.74.2Sharingdata/data.74.3ConformitytothisEN.84.4Interpretationofthemeasurementresults.85Technicalcharacteristicsoftheequipment.86Accessprotocol.86.1General.86.2Principles.96.3Procedure.96.4Carriersensing.106.5Observationtime.106.6Initiationofthetransmitter.116.7DurationoftheRFchanneloccupation(timeinterval).116.7.1Transmissionsofdatapacketsexceeding300ms.116.7.2Transmissionsofdatapacketsnotexceeding300ms(speech/datachannels).117Examplesofsharingsituations.118Methodsofmeasurementforreceiverdelays.168.1Carriersensedelay.168.1.1Definition.168.1.2Methodofmeasurement.168.1.3Limit.178.2Receiveropeningdelay.178.2.1Definition.178.2.2Methodofmeasurement.178.2.3Limit.189Measurementuncertainty.18AnnexA(normative):Generalarrangementsformeasurementsinvolvingtheuseofradiatedfields.19A.1Testfixture.19A.1.1Description.19A.1.2Calibration.20A.1.3Modeofuse.20A.2Acousticcoupler.20A.2.1General.20A.2.2Description.21A.2.3Calibration.21SIST EN 300 471-1 V1.2.1:2003



ETSIETSIEN300471-1V1.2.1(2001-05)4AnnexB(informative):Commentsconcerningtherandompartoftheobservationtime.22AnnexC(informative):Commentsconcerningthetrafficloadingofsharedchannels.23AnnexD(informative):Bibliography.24History.25SIST EN 300 471-1 V1.2.1:2003



ETSIETSIEN300471-1V1.2.1(2001-05)5IntellectualPropertyRightsIPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.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)hasbeenproducedbyETSITechnicalCommitteeElectromagneticcompatibilityandRadiospectrumMatters(ERM).Thepresentdocumentispart1ofamulti-partdeliverablecoveringtheLandMobileService;RulesforAccessandtheSharingofcommonusedchannelsbyequipmentcomplyingwith300113,asidentifiedbelow:Part1:"Technicalcharacteristicsandmethodsofmeasurement";Part2:"HarmonizedENcoveringessentialrequirementsunderarticle3.2oftheR&TTEDirective".NationaltranspositiondatesDateofadoptionofthisEN:27April2001DateoflatestannouncementofthisEN(doa):31July2001DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):31January2002DateofwithdrawalofanyconflictingNationalStandard(dow):31January2002IntroductionThepresentdocumentspecifiesanaccessprotocolandoccupationrulesfordatacommunicationsonradiochannelssharedbydifferentusers,asidentifiedintheScope.ItisbasedontheaccessprotocolpublishedasannexFofI-ETS300113[3].Thisaccessprotocolmaybeusedfordatacommunicationsoverchannelsoriginallyintendedforspeechuse.TherequirementsofthepresentdocumentcanbeimplementedinequipmentmeetingtherequirementsofETSIstandardssuchasEN300113orEN300390.Thepresentdocumentgivesfreedomfortheuseofanybitrate,anyconstantenvelopemodulationoranytypeofcommunicationsprotocolwhichfulfilsthenormativeparametersprovidedbythepresentdocument,inordertoaccessasharedradiochannel.SIST EN 300 471-1 V1.2.1:2003



ETSIETSIEN300471-1V1.2.1(2001-05)61ScopeThepresentdocumentappliestoequipmentdesignedtooperatewithintheprofessionalmobileradioserviceandtotheassociatedfrequencyplanning.Itappliestoequipmentdesignedforthetransmissionofdataonsharedchannels.Thepresentdocumentspecifiesanaccessprotocolandoccupationrulesfordatacommunicationsonradiochannelssharedbydifferentusers;italsocontainstwomethodsofmeasurementusedfortheassessmentofreceivertimingparameters(characteristicsrequiredfortheimplementationoftheprotocol).Thisaccessprotocolmaybeusedfordatacommunicationsoverchannelsoriginallyintendedforspeechuse.Thisaccessprotocolalsopermitsthesharingofachannelbetweenseveralindependentusersofdatacommunications.Moreprecisely,thisaccessprotocolappliestosinglefrequencysimplexoperation(andtwofrequencyrepeateroperationswiththerepeaterinduplexmodeandthemobileunitsinsimplexmode).Thisaccessprotocolisapplicablefor:-multipledataonlyusers,independentofeachother,whichdonotshareacommoncentralcontrolfacility,butmayshareacommonsingleortwofrequencyradiochannel;-multiplemixedanaloguespeechanddatausers,independentfromeachother,whichdonotshareacommoncentralcontrolfacility,butmayshareacommonsingle,ortwofrequency,radiochannelandwherespeechistohavepriorityoverdatatransmissions.Inthecaseofanaloguetransmissions,thecorrespondingaccessprotocolisknownasthe"radio-discipline"oftheusers.Thepresentdocumentgivesfreedomfortheuseofanybitrate,anyconstantenvelopemodulationoranytypeofcommunicationsprotocolwhichfulfilsthenormativeparametersprovidedbythepresentdocument,inordertoaccessasharedradiochannel;withinthelimitssetoutinthepresentdocument,eachgroupofusersmayuseitsowncommunicationprotocol.Thisaccessprotocolisnotapplicablefordatauserswithcommoncentralcontrolfacilitiesorfortrunkedsystemsoperatingondedicatednon-sharedchannels.2ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.• Referencesareeitherspecific(identifiedbydateofpublicationand/oreditionnumberorversionnumber)ornon-specific.• Foraspecificreference,subsequentrevisionsdonotapply.• Foranon-specificreference,thelatestversionapplies.[1]ETSIEN300113-1(V1.3.1):"ElectromagneticcompatibilityandRadiospectrumMatters(ERM);Landmobileservice;Radioequipmentintendedforthetransmissionofdata(andspeech)andhavinganantennaconnector;Part1:Technicalcharacteristicsandmethodsofmeasurement".[2]ETSIEN300390-1(V1.2.1):"ElectromagneticcompatibilityandRadiospectrumMatters(ERM);LandMobileService;Radioequipmentintendedforthetransmissionofdata(andspeech)andusinganintegralantenna;Part1:Technicalcharacteristicsandtestconditions".[3]ETSII-ETS300113(1992):"RadioEquipmentandSystems(RES);LandmobileserviceTechnicalcharacteristicsandtestconditionsfornon-speechandcombinedanaloguespeech/non-speechequipmentwithaninternalorexternalantennaconnector,intendedforthetransmissionofdata".[4]ETSIETR028(1994):"RadioEquipmentandSystems(RES);Uncertaintiesinthemeasurementofmobileradioequipmentcharacteristics".SIST EN 300 471-1 V1.2.1:2003



ETSIETSIEN300471-1V1.2.1(2001-05)73DefinitionsForthepurposeofthepresentdocument,thefollowingtermsanddefinitionsapply:bit:binarydigitblock:thesmallestquantityofinformationsentovertheradiochannel.Aconstantnumberofusefulbitsarealwayssenttogetherwiththecorrespondingredundancybits.packet:oneblockoracontiguousstreamofblockssentbyone(logical)transmittertooneparticularreceiveroroneparticulargroupofreceiversburst(physical):transmissionofasmallnumberofconsecutivepacketswithinaperiodnotexceeding300msinaccordancewiththisaccessprotocoltransmission(physical):oneorseveralpacketstransmittedbetweenpoweronandpoweroffofaparticulartransmitterwindow:setofinter-relatedtransmissionsresultingfromtheactionofthe"initiatingtransmitter",andlimitedintimebytheaccessprotocolandcorrespondingoccupationrulestoadurationoftt+∆tt.session:setofinter-relatedexchangesofpacketsoccupyingoneorseveralwindowsorpartsthereof(ifapplicable).Itcorrespondstoacompleteinteractiveprocedureforinterchangingdatabetweenusers,comprisinginitiation,datatransmissionandterminationprocedures.Thesessioncanbeshort(e.g.2packets)orlong(e.g.onefullpageoftext).message:userdatatobetransferredinoneormorepacketsinasessioninitiatingtransmitter:theinitiatingtransmitteristhestationthathascompletedthe"observationtime"(seeclause6.5)andthereforestartsatransmission.Thisinitiatesawindowandtriggersthetimertt.reply:transmissionbyastationasananswertothe"initiatingtransmitter".Thisreplycanbeanacknowledge("ACK")oranegativeacknowledge("NACK")oralongerpacketofusefulinformation.4General4.1Sharingspeech/dataThisaccessprotocolgivesspeechpriorityoverdataonmixedspeech/datachannels.Inordertolimitannoyancetospeechusers,thedurationofdatatransmissionsshallbelimitedinaccordancewithclause6.7.4.2Sharingdata/dataOnfrequenciesassignedonlytodatacommunicationusers(withoutcommoncentralcontrolfacilities)theaccessprotocolprovidesaccesstoindependentuserswithequalpriority.SIST EN 300 471-1 V1.2.1:2003



ETSIETSIEN300471-1V1.2.1(2001-05)84.3ConformitytothisENa)Asigneddeclarationshallbeprovidedasaconfirmationthattheequipmentmeetstherequirementsofthisaccessprotocol.b)Thismaybesubmittedbythemanufacturerwiththeapplicationformfortests.c)Inthecasewherethecontrollingsoftwarefortheequipmenthasnotbeenengineeredbythemanufactureroftheradioequipment,thepartyresponsibleforengineeringthecontrollingsoftwareshallprovideasigneddeclarationthattheequipmentmeetstherequirementsofthisaccessprotocol.d)Measurementsofreceivercarriersensedelayandopeningdelayshallbeperformed,possiblytogetherwiththetestscorrespondingtoEN300113(orEN300390).4.4InterpretationofthemeasurementresultsTheinterpretationoftheresults(e.g.resultsrecordedinatestreport)forthemeasurementsdescribedinthepresentdocumentshallbeasfollows:-themeasuredvaluerelatedtothecorrespondinglimitshallbeusedtodecidewhetheranequipmentmeetstherequirementsforthatparameterofthepresentdocument;-thevalueofthemeasurementuncertaintyshallbe,foreachmeasurement,equaltoorlowerthanthefiguresgiveninclause9(maximumacceptablevaluesofthemeasurementuncertainties);-thevalueofthemeasurementuncertaintyforthemeasurementofeachparametershallbeincludedinthecorrespondingtestreport(ifany).Forthetestmethods,accordingtothepresentdocument,themeasurementuncertaintyfiguresshallbecalculatedinaccordancewithETR028[4]andshallcorrespondtoanexpansionfactor(coveragefactor)k=1,96ork=2(whichprovideconfidencelevelsofrespectively95%and95,45%inthecasewherethedistributionscharacterisingtheactualmeasurementuncertaintiesarenormal(Gaussian)).Theparticularexpansionfactorusedfortheevaluationofthemeasurementuncertaintyshallbestated.5TechnicalcharacteristicsoftheequipmentThetimingrequirementsthattheequipmentshallfulfilinordertooperatecorrectlyandefficientlycanbefoundinEN300113-1[1],clauses5.1.7and5.1.8,EN300390-1[2],clauses5.1.5and5.1.6andclauses8.1.3and8.2.3ofthepresentdocument.ThecorrespondingmethodsofmeasurementcanbefoundinEN300113-1[1],clauses8.8and8.9,EN300390-1[2],clauses8.5and8.6andinclauses8.1and8.2,ofthepresentdocument.6Accessprotocol6.1GeneralTheaccessprotocolshallbeusedforeachoccupationoftheRadioFrequency(RF)channelforsharingdata/dataandforsharingspeech/datawithautomaticchannelaccess.SIST EN 300 471-1 V1.2.1:2003



ETSIETSIEN300471-1V1.2.1(2001-05)96.2PrinciplesTheequipmentdetermineswhetherornotthechannelis,andhasbeen,idleforacertainperiod(theobservationtime)bymeansofcarriersensing.Theobservationtimeconsistsofafixedpartandarandomlyselectedpart.Whenthechannelstillappearstobeidleattheendoftheobservationtime,thetransmitterisinitiatedandpoweredupwithinaspecifiedtime.Thedurationoftheemissionislimited(seeclause6.7).6.3ProcedureTheequipmentshalldeterminewhetherornotthechannelis,andhasbeen,idleforacertainperiod(theobservationtimeto),bymeansofcarriersensing(seeclause6.4).Theobservationtimetoconsistsofafixedparttfandarandomlyselectedparttr.Ifthechannelisoccupiedduringpartoftheobservationtime,theprocessshallberepeatedwithoutchangingm(seeclause6.5).Ifthechannelappearstobeidlethroughouttheobservationtime,thetransmittershallbeinitiatedandpoweredupwithinthespecifiedtime(attacktime;seeEN300113-1[1],clause8.8orEN300390-1[2],clause8.5).Thechannelcanthenbeseizedforthedurationofonetimeinterval.Themaximumlengthttofthisintervaldependsonthefrequencysharingcategory(data/speech,data/data).Ifaretransmissionisrequired(due,forexample,toa"collision",i.e.asimultaneouschannelaccessbyseveralusers),theobservationprocessshallberepeatedandthechannelshallbedetectedasidlepriortoarepetitionofatransmission.Withinonetimeinterval,thefollowingradiotrafficmaytakeplace:a)fromabasestationtooneorseveralmobiles;b)fromamobiletoabasestation;c)betweenmobiles.Toensurethatnootherusercanaccessthechannelduringatimeinterval,thereversiontimetc,thetimebetweentransmissionofamessageandreceptionofthecorrespondingacknowledgementand/orreply,shallnotexceed50ms.Thereversiontimetcisthetimebetweentheswi
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