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EUROPEAN STANDARD
Intelligent Transport Systems (ITS);
Vehicular Communications;
Basic Set of Applications;
Part 3: Specifications of Decentralized
Environmental Notification Basic Service
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2 ETSI EN 302 637-3 V1.3.1 (2019-04)
Reference
REN/ITS-0010090
Keywords
application, ITS, safety, service, transport
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3 ETSI EN 302 637-3 V1.3.1 (2019-04)
Contents
Intellectual Property Rights . 7
Foreword . 7
Modal verbs terminology . 8
Introduction . 8
1 Scope . 9
2 References . 9
2.1 Normative references . 9
2.2 Informative references . 9
3 Definitions, symbols and abbreviations . 11
3.1 Definitions . 11
3.2 Symbols . 12
3.3 Abbreviations . 12
4 DEN basic service introduction . 13
4.1 Background . 13
4.2 Services provided by the DEN basic service . 14
5 DEN basic service functional description . 15
5.1 Introduction . 15
5.2 DEN basic service in the ITS architecture . 16
5.3 DEN basic service functional architecture . 16
5.4 Interfaces of the DEN basic service . 18
5.4.1 Interfaces to the ITS application layer . 18
5.4.1.1 Introduction . 18
5.4.1.2 Data passed via interface IF.DEN.1 for the request type AppDENM_trigger . 19
5.4.1.3 Data passed via interface IF.DEN.1 for the request type AppDENM_update . 20
5.4.1.4 Data passed via interface IF.DEN.1 for the request type AppDENM_termination . 21
5.4.1.5 Data passed via interface IF.DEN.2 for received DENM . 21
5.4.1.6 Methods for data exchanges between DEN basic service and ITS application layer . 22
5.4.2 Interface to the ITS networking & transport layer . 22
5.4.2.1 General requirements . 22
5.4.2.2 Interface to the GeoNetworking/BTP stack . 23
5.4.2.3 Interface to the IPv6 stack and the combined IPv6/GeoNetworking stack . 23
5.4.3 Interface to the ITS management entity . 24
5.4.4 Interface to the ITS security entity . 24
6 DENM dissemination . 24
6.1 DENM dissemination concepts . 24
6.1.1 Event identification . 24
6.1.1.1 actionID . 24
6.1.1.2 stationID update and actionID management . 24
6.1.2 Trigger, update, repetition and termination of DENM. 25
6.1.2.1 DENM trigger . 25
6.1.2.2 DENM update . 25
6.1.2.3 DENM repetition . 25
6.1.2.4 DENM termination. 25
6.1.3 Relevance area, location referencing and destination area . 26
6.1.3.1 DENM relevance area . 26
6.1.3.2 Location referencing . 27
6.1.3.3 DENM destination area . 27
6.1.4 DENM forwarding . 27
6.1.4.1 Packet centric forwarding . 27
6.1.4.2 Keep-alive forwarding . 28
6.2 DENM dissemination constraints . 28
6.2.1 General confidence constraints . 28
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4 ETSI EN 302 637-3 V1.3.1 (2019-04)
6.2.2 General security constraints . 28
6.2.2.1 Introduction . 28
6.2.2.2 Service Specific Permissions (SSP) . 29
6.2.3 General priority constraints. 31
7 DENM format specification . 31
7.1 DENM structure . 31
7.1.1 General structure of a DENM . 31
7.1.2 ITS PDU header . 32
7.1.3 DENM management container . 32
7.1.4 DENM situation container . 32
7.1.5 DENM location container . 36
7.1.6 DENM à la carte container . 37
7.2 DENM format and decoding rules. 37
7.2.1 Common data dictionary . 37
7.2.2 DENM data presentation . 37
8 Protocol operation of the DEN basic service . 38
8.1 Introduction . 38
8.2 Originating ITS-S operation . 38
8.2.1 Protocol data setting rules . 38
8.2.1.1 General requirements . 38
8.2.1.2 actionID . 38
8.2.1.3 referenceTime . 39
8.2.1.4 termination . 39
8.2.1.5 T_O_Validity, T_RepetitionDuration and T_Repetition . 39
8.2.1.6 Originating ITS-S message table . 40
8.2.2 General protocol operation . 40
8.2.3 Exception handling . 47
8.2.3.1 General requirements . 47
8.2.3.2 DENM construction exception . 47
8.2.3.3 actionID non-existence exception . 47
8.2.3.4 Time operation exception . 47
8.3 Forwarding ITS-S operation . 47
8.3.1 Introduction. 47
8.3.2 Protocol data setting rules . 47
8.3.2.1 General requirements . 47
8.3.2.2 actionID . 48
8.3.2.3 referenceTime . 48
8.3.2.4 termination . 48
8.3.2.5 T_F_Validity and T_Forwarding . 48
8.3.2.6 Forwarding ITS-S message table . 48
8.3.2.7 DENM reconstruction . 49
8.3.3 General protocol operation . 49
8.3.4 Exception handling . 51
8.3.4.1 General requirements . 51
8.3.4.2 DENM construction exception . 51
8.4 Receiving ITS-S operation . 52
8.4.1 Protocol data setting rules . 52
8.4.1.1 General requirements . 52
8.4.1.2 actionID . 52
8.4.1.3 referenceTime . 52
8.4.1.4 termination . 52
8.4.1.5 T_R_Validity . 52
8.4.1.6 Receiving ITS-S message table . 52
8.4.2 General protocol operation . 53
8.4.3 Exception handling . 55
8.4.3.1 General requirements . 55
8.4.3.2 DENM decoding exception . 55
Annex A (normative): ASN.1 specification of DENM . 56
Annex B (normative): Description for data elements and data frames. 58
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5 ETSI EN 302 637-3 V1.3.1 (2019-04)
B.1 header . 58
B.2 denm . 58
B.3 management . 58
B.4 situation . 58
B.5 location . 59
B.6 alacarte . 59
B.7 actionID . 59
B.8 carryingDangerousGoods . 59
B.9 closedLanes . 60
B.10 defaultValidity . 60
B.11 detectionTime . 60
B.12 energyStorageType . 60
B.13 eventHistory . 61
B.14 eventPosition . 61
B.15 eventPositionHeading . 61
B.16 eventSpeed . 62
B.17 eventType . 62
B.18 externalTemperature . 62
B.19 heightLonCarrLeft . 62
B.20 heightLonCarrRight. 62
B.21 impactReduction . 63
B.22 incidentIndication . 63
B.23 informationQuality . 63
B.24 lanePosition . 63
B.25 lightBarSirenInUse . 64
B.26 linkedCause . 64
B.27 numberOfOccupants . 64
B.28 posCentMass . 64
B.29 posFrontAx . 65
B.30 positioningSolution . 65
B.31 positionOfOccupants . 65
B.32 positionOfPillars . 65
B.33 posLonCarrLeft . 66
B.34 posLonCarrRight . 66
B.35 recommendedPath . 66
B.36 referenceDenms . 66
B.37 referenceTime . 67
B.38 relevanceDistance . 67
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6 ETSI EN 302 637-3 V1.3.1 (2019-04)
B.39 relevanceTrafficDirection . 67
B.40 requestResponseIndication . 67
B.41 restriction . 68
B.42 roadType . 68
B.43 roadWorks . 68
B.44 speedLimit . 68
B.45 startingPointSpeedLimit . 69
B.46 stationaryCause . 69
B.47 stationarySince . 69
B.48 stationaryVehicle . 69
B.49 stationType . 69
B.50 termination . 70
B.51 traces. 70
B.52 trafficFlowRule . 70
B.53 transmissionInterval . 71
B.54 turningRadius . 71
B.55 validityDuration . 71
B.56 vehicleIdentification . 72
B.57 vehicleMass . 72
B.58 wheelBaseVehicle . 72
Annex C (informative): Bibliography . 73
History . 74
ETSI
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7 ETSI EN 302 637-3 V1.3.1 (2019-04)
Intellectual Property Rights
Essential patents
IPRs essential or po
...