SIST EN 300 471-1 V1.2.1:2003
(Main)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
General Information
- Abstract
Editorial update, consequent to the publication of EN 300 471-2
- Status
- Published
- Publication Date
- 30-Nov-2003
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 01-Dec-2003
- Due Date
- 01-Dec-2003
- Completion Date
- 01-Dec-2003
Overview
SIST EN 300 471-1 V1.2.1:2003 is a European standard that addresses Electromagnetic Compatibility (EMC) and Radio Spectrum Matters (ERM) within the Land Mobile Service. It establishes the rules for access and the sharing of commonly used radio channels by equipment compliant with EN 300 113, focusing on technical characteristics and measurement methods. This editorial update aligns with the publication of EN 300 471-2 and supports professionals, regulators, and manufacturers in ensuring reliable, interference-free operation of mobile radio equipment in shared channel environments.
Key Topics
- Electromagnetic Compatibility (EMC): Requirements for minimizing interference between electronic devices in the radio environment.
- Channel Access Protocols: Rules defining how equipment accesses and shares radio frequency channels, particularly for data and mixed speech/data communication.
- Technical Characteristics: Specifications related to the timing, signal detection, and operational behaviour of land mobile radio equipment.
- Measurement Methods: Procedures for testing and confirming compliance, focusing on receiver timing parameters such as carrier sense delay and receiver opening delay.
- Speech and Data Sharing: Protocols designed to give speech transmissions priority over data on shared channels, reducing disruptions in mixed-traffic environments.
- Equipment Conformity: Processes for manufacturers and software developers to formally declare compliance with access protocols.
- Testing Setups: Guidelines for measurement, including the use of RF test fixtures and couplers.
Applications
SIST EN 300 471-1 V1.2.1:2003 is essential for a variety of applications where multiple users operate on shared radio channels within the land mobile service, such as:
- Professional Mobile Radio (PMR): Used by emergency services, utilities, and transportation sectors needing robust, interference-free communication.
- Private Data Radio Networks: Applicable in logistics, industrial automation, and fleet management, where independent users may require simultaneous access to shared frequencies.
- Mixed Traffic Scenarios: Ensures reliable communication in environments where both speech and data transmissions occur, prioritizing speech for critical communications.
- Regulatory Compliance: Used by manufacturers and system integrators to test and certify radio equipment for use across the European Union and other markets adopting ETSI standards.
- Frequency Planning: Supports regulators and frequency planners in managing spectrum efficiency while ensuring coexistence for multiple independent users.
Complying with this standard enables manufacturers to demonstrate that their equipment does not cause or suffer from undue interference and meets stringent access and sharing requirements. It also benefits organizations deploying mobile radio networks by ensuring interoperable and reliable equipment performance.
Related Standards
For extended guidance and additional requirements, refer to the following interconnected standards:
- EN 300 113-1: Radio equipment intended for data and speech transmission; main reference for technical characteristics and measurement practices.
- EN 300 390-1: Requirements for equipment using integral antennas.
- EN 300 471-2: Covers essential requirements under relevant directives, complementing Part 1.
- ETSI TR 028: Guidance on measurement uncertainties in mobile radio equipment testing.
Adhering to SIST EN 300 471-1 V1.2.1:2003 and associated standards enables efficient channel use, minimizes interference risks, and ensures harmonized operation in the crowded spectrum of land mobile services.
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Frequently Asked Questions
SIST EN 300 471-1 V1.2.1:2003 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "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". This standard covers: Editorial update, consequent to the publication of EN 300 471-2
Editorial update, consequent to the publication of EN 300 471-2
SIST EN 300 471-1 V1.2.1:2003 is classified under the following ICS (International Classification for Standards) categories: 33.060.99 - Other equipment for radiocommunications; 33.100.01 - Electromagnetic compatibility in general. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 300 471-1 V1.2.1:2003 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
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
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.:+33492944200Fax:+33493654716SiretN°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:editor@etsi.frCopyrightNotificationNopartmaybereproducedexceptasauthorizedbywrittenpermission.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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