1、DRAFT FOR DEVELOPMENT DD CEN/TS 14821-4:2003 Traffic and Travel information (TTI) TTI messages via cellular networks Part 4: Service-independent protocols ICS 35.240.60 DD CEN/TS 14821-4:2003 This Draft for Development was published under the authority of the Standards Policy and Strategy Committee
2、on 9 July 2003 BSI 9 July 2003 ISBN 0 580 42219 4 National foreword This Draft for Development reproduces verbatim CEN/TS 14821-4:2003. This publication is not to be regarded as a British Standard. It is being issued in the Draft for Development series of publications and is of a provisional nature
3、because technology in this area is rapidly evolving. It should be applied on this provisional basis, so that information and experience of its practical application may be obtained. Comments arising from the use of this Draft for Development are requested so that UK experience can be reported to the
4、 international organization responsible for the Technical Specification. A review of this publication will be initiated not later than 3 years after its publication by the international organization so that a decision can be taken on its status at the end of its 3-year life. Notification of the star
5、t of the review period will be made in an announcement in the appropriate issue of Update Standards. According to the replies received by the end of the review period, the responsible BSI Committee will decide whether to support the conversion into an international standard, to extend the life of th
6、e Technical Specification for another 3 years or to withdraw it. Comments should be sent in writing to the Secretary of BSI Technical Committee EPL/278, Road transport informatics, at British Standards House, 389 Chiswick High Road, London W4 4AL, giving the document reference and clause number and
7、proposing, where possible, an appropriate revision of the text. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found i
8、n the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. Summary of pages This document comprises a front cover, an inside front cover, the CEN/TS title page, pages
9、 2 to 42, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsTECHNICALSPECIFICATION SPCIFICATIONTECHNIQUE TECHNISCHESPEZIFIKATION CEN/TS148214 May2003 ICS35.
10、240.60 Englishversion TrafficandTravelinformation(TTI)TTImessagesviacellular networksPart4:Serviceindependentprotocols ThisTechnicalSpecification(CEN/TS)wasapprovedbyCENon10May2001forprovisionalapplication. TheperiodofvalidityofthisCEN/TSislimitedinitiallytothreeyears.AftertwoyearsthemembersofCENwil
11、lberequested tosubmittheir comments,particularlyonthequestionwhethertheCEN/TScanbeconvertedintoaEuropeanStandard. CENmembersarerequiredtoannouncetheexistenceofthisCEN/TSinthesamewayasforanENandtomaketheCEN/TSavailable .It ispermissibletokeepconflictingnationalstandardsinforce(inparalleltotheCEN/TS)u
12、ntilthefinaldecisionaboutthep ossible conversionoftheCEN/TSintoanENisreached. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,SwitzerlandandU
13、n ited Kingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.CEN/TS148214:2003ECEN/TS148214:2003(E) 2 Tab
14、leofcontents PAGE TABLEOFCONTENTS 2 FOREWORD 3 INTRODUCTION 4 1. SCOPE 5 2. NORMATIVEREFERENCES 6 3. DEFINITIONSANDABBREVIATIONS 6 3.1 Definitions 6 3.2 Abbreviations 8 4. SERVICEINDEPENDENTPROTOCOLS 13 4.1 GeneralDefinitionsandInformationElements 13 4.2SpecificationinASN.1 21 5.ADPFORSERVICEINDEPEN
15、DE NTMESSAGES27 5.1GeneralDefinitionsandInformationElements27 5.2SpecificationinASN.1 33 BIBLIOGRAPHY42CEN/TS148214:2003(E) 3 Foreword Thisdocument(CEN/TS148214:2003)hasbeenpreparedbyTechnicalCommitteeCEN/TC278“ Road transportandtraffictelematics“,thesecretariatofwhichisheldbyNEN , incollaborationwi
16、th TechnicalCommitteeISO/TC204 “TransportinformationandcontrolThisTechnicalSpecificationwas preparedbyWorkingGroup7ofCENTC278.InthefieldofTrafficandTravellerInformation,the innovativerateishigh,withmanyresearchanddevelopmentprojectsunderwayinmanycountries,and thereisaneedtoestablishprospectivestanda
17、rdswhichallowmanufacturerstointroducecompetitive productstothemarketintheknowledgethattheycanaccommodatethefutureissuesofthestandard(s) withoutfundamentalchangetoequipment. Noknownnationaltechnicalspecifications(identicalorconflicting)existonthissubject. CEN/TS14821consistsofeightparts;onepartdescri
18、bingtheframeworkandsevenpartsproviding detailedspecificationsofallcomponents,protocolsandservicesthatarewithinthescopeofCEN/TS 14821. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthe followingcountriesareboundtoannouncethisCENTechnicalSpecification:Austria,Belgium,
19、Czech Republic,Denmark,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Luxembourg, Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,SwitzerlandandtheUnitedKingdom.CEN/TS148214:2003(E) 4 Introduction TrafficandTravellerInformation(TTI)maybedisseminatedthroughanumberofservicesormean
20、sof communication,coveringstaticdisplays,portableterminalsandinvehicleequipment. Forallsuchservices,thedatatobedisseminated,andthemessagestructureinvolvedinthevarious interfaces,requirecleardefinitionandstandardsformatsinordertoallowcompetitiveproductsto operatewithanyreceiveddata. Thistechnicalspec
21、ificationfocusesonanapplicationdataspecificationwherebydataisproducedata centrallocationandisdisseminatedviaacellularradionetwork.Itaddressesthedataspecificationsfor bothdownlinkanduplinkexistingbetweenacentrallocationandrandomlylocatedvehicles.Itenables messagestobeexchangedbetweendifferentsystemsa
22、ndserviceprovidersadoptingavarietyof applicationsspecifications. OthertechnicalspecificationsarebeingproducedbytheCENTC278WorkingGroup4tocoverTTI disseminationviaothermeansorservices.ThissetofspecificationsisnamedGATS(Global AutomotiveTelematicsStandard).GATSprovidesthemodularframeworkforimplementin
23、gsuchtraffic telematicsservicesonanopentechnologyplatformandisnetworkindependent.Inmanydetails definitionsarenecessarytoensureinteroperability.Therefore,thosedetaileddefinitionsaregivenina networkspecificpart(CEN/TS148218).Withthedevelopmentoffuturemobilecommunication systemstowardsUMTS/IMT2000thebo
24、ttleneckofnarrowbanddatacommunicationmightfade.Due toitsmodularstructure,theGATSframeworkandapplicationsarepreparedforthatduetoitsnetwork independence.Thesameholdsforemergingtechnologiesforpositioningwhichtodayisalmost exclusivelybasedonGPS. Otherrelevantstandarddevelopmentsare,independentfromtelema
25、tics,theapplicationindependent WirelessApplicationProtocol(WAP),enablingmobileaccesstotheInternet.Itisunderstoodthatthese emergingtechnologiesmightfitintotheframeworkoftelematicsapplicationsinfutureWAPversions. Forthetimebeing,GATSalreadytodayindependentlyfromWAPenablesaccesstotelematics services.Ut
26、ilisationofGATSonaWAPprotocolstackandidentifyingnecessaryadaptationofWAP specifications(ifany)iscurrentlyunderinvestigationoftheappropriategroupswithinWAPForumand GATSForum.CEN/TS148214:2003(E) 5 1. Scope Thistechnicalspecificationdefinesthespecificinterfacesandfunctionalityoftraffictelematics(TT) s
27、ervicesbasedontheuseofcellularnetworks.Devicemanufacturersareenabledtodevelopterminal equipmentcompatibletoservicesbasedonthisstandard.Thiswillallowforinteroperabilityofdifferent terminalequipmentandserviceproviderswhichallowscompetitionbetweenserviceprovidersand terminalmanufacturers.Furthermoreits
28、etsthesceneforinternationalavailabilityoftheseservices. Thistechnicalspecificationspecifies TTspecificinterfacesbetweenterminalandservicecentre.Thisespeciallyincorporatesthe messagesetsoftheapplicationdataprotocolsandtheserviceindependentcommunication handling(includingconditionalaccessandtransportp
29、rotocols). Functionality,proceduresandrequirementsofbasicterminalcomponentsaswellastheirinteraction withtheservicecentre.Thisespeciallycomprisesconditionalaccessandsecuritymechanisms. ServiceSpecifications,whichareessentialtoensureconsistentbehaviourofterminalandservice centre. Theservicesincorporat
30、edwithinthisissuecomprise: breakdownandemergencyservices interactivetrafficinformationservices broadcasttrafficinformationservices navigationservices(routeassistance,routeadvice,homing) operatorservices generalinformationservices floatingcardatacollection Itisenvisagedthatfutureresearchanddevelopmen
31、twillleadtoimprovementsontheserviceslisted aboveaswellastothecreationofnewservices.Neverthelessthistechnicalspecificationprovidesthe frameworkforseamlessintegrationofnewfeaturesandservicesintotheexistingarchitecture.CEN/TS148214:2003(E) 6 2. Normativereferences Notapplicable. 3. Definitionsandabbrev
32、iations 3.1 Definitions Forthepurposesofthistechnicalspecification,thefollowingtermsanddefinitionsapply: 3.1.1 Attribute(ofaTrafficInformationMessage) ATrafficInformationMessageismadeupofseparatepartsthatcanbecalledattributes.Thisincludes, forexample,anitemofinformationandalengthofvalidity. 3.1.2 Au
33、thorisation Reciprocalproofthattheidentityprovidedbythecommunicationspartnerisvalid 3.1.3 BroadcastService Dataservicewithinacellularwirelessnetworkthatallowsformonodirectionaldisseminationofdata fromaservicecentretomultipleusersintheareaofsignalreception 3.1.4 BypassDescription RepresentationofaByp
34、ass,consistingofaBypassHintand/oraBypassRoute. 3.1.5 BypassHint RepresentationofahintforaBypass 3.1.6 BypassLink ProminentwaypointsonaBypassRoute 3.1.7 BypassRoute RepresentationoftherouteforaBypass 3.1.8 CellBroadcast BroadcastserviceoftheGSMnetwork 3.1.9 Datatelegram Digitalmessageexchangedbetween
35、twosystems 3.1.10DeliveryNotification Networkacknowledgementforsuccessful/unsuccessfuldeliveryofamessagetothemobiledevice 3.1.11FunctionalRoadClass Aclassificationbasedontheimportanceoftheroadelementintheconnectivityofthetotalroadnetwork 3.1.12FunctionalRoadClass0 Motorways 3.1.13FunctionalRoadClass
36、1 AllnonMotorwaysthatarepartofaconnectionusedfornationwidetrafficandtransportCEN/TS148214:2003(E) 7 3.1.14Geocode Geocodesareuniqueidentifiersunmistakablydefiningimportantpointsonroadnetworks.Geocodes canbederivedfrom/convertedintoWGS84coordinatesbythealgorithmdescribedinCEN/TS14821 3. 3.1.15Hardwar
37、eserviceagents Partnercompaniesofthetraffictelematicsserviceproviderswhoareauthorisedtoinstallonboard equipmentintovehiclesandtomaintainit 3.1.16Homing Simpleformofguidancetodestination,inwhichthedirectionand straightlinedistanceofthedestinationareindicated 3.1.17InformationElement Informationunitof
38、amessage 3.1.18Intersection Junctionoftwoormoreroads 3.1.19LengthofaSpeechReport LengthofaSpeechReport,includingpauses,intenthsofasecond 3.1.20MobileOriginated DatatelegramsentfromtheonboardequipmenttotheServiceCentre. 3.1.21MobileTerminated DatatelegramsentbytheServiceCentretotheonboardequipment. 3
39、.1.22Onboardequipment Asystem,generallymobile,interactingwiththeservicecentretohandletraffictelematicsservices 3.1.23RoadJunction Intersectionoftwoormoreroads 3.1.24Routedescription Descriptionofarouteshowingthegeometryofstreetintersections,manoeuvreinstructions,streetand placenames,andgeographicalc
40、oordinates 3.1.25Servicecentre Systemproducedbythetraffictelematicsoperators/serviceproviderstohandletraffictelematics services 3.1.26ShortMessageService PacketbasedformofdatatransferwithintheGSMnetwork 3.1.27Speechconnection Communicationschannelbetweentwosystemsforthebidirectionaltransmissionofspe
41、echCEN/TS148214:2003(E) 8 3.1.28SpeechReport TrafficInformationReporttransmittedbyaspeechsystem 3.1.29TerminalDevice Generallymobilesysteminteractingwiththeservicecentreforimplementationoftelematicsservices 3.1.30TINFO TrafficInformationReport 3.1.31TINFOVersion UniqueidentificationofaTrafficMessage
42、,consistingofanumberandatimestamp 3.1.32TrafficData DataforqualificationofTrafficEvents.Thisincludes: Values: speed,trafficflow,trafficdensity Places: position,placedesignation Facts: descriptionofsituation 3.1.33TrafficEvent Anoccurrenceonaroadorinanareathatisworthyofreporting,suchasatrafficjam,wro
43、ngway driver,orfog. 3.1.34TrafficInformation TechnicalrepresentationofaTrafficSituationwithintheonboardequipment,accomplishedbyanumber ofTrafficInformationReports. ThisTrafficInformationcanbedisplayedtothecustomerviasuitableterminals. 3.1.35TrafficInformationReport TechnicalrepresentationofaTrafficE
44、ventproducedbyprocessingtrafficdata. EachTrafficReportsuniquelyidentifiedbyanumber,theTINFOID,atimestamp,theTINFOversion. NOTE:IftheTrafficEventchanges,thetimestampchanges,buttheTINFOIDnumberdoesnot. 3.1.36TrafficSituation ThetotalnumberofallTrafficEventstakingplacethatdeservereportingwithinanarea.TheTraffic Situationisalwayslinkedtoanarea.Thus,forexample,anareacouldbeaconurbationora geometricallydemarcatedarea;anexampleisthe
