ETSI TS 103 152 V2.1.1 (2019-11)

ETSI TS 103 152 V2.1.1 (2019-11)






TECHNICAL SPECIFICATION
Intelligent Transport Systems (ITS);
V2X Communications;
Multimedia Content Dissemination (MCD)
Basic Service specification;
Release 2

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2 ETSI TS 103 152 V2.1.1 (2019-11)



Reference
DTS/ITS-00135
Keywords
application, information model, ITS, multimedia
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3 ETSI TS 103 152 V2.1.1 (2019-11)
Contents
Intellectual Property Rights . 6
Foreword . 6
Modal verbs terminology . 6
Introduction . 6
1 Scope . 7
2 References . 7
2.1 Normative references . 7
2.2 Informative references . 8
3 Definition of terms, symbols and abbreviations . 8
3.1 Terms . 8
3.2 Symbols . 8
3.3 Abbreviations . 9
4 MCD basic service introduction . 9
4.1 Background . 9
4.2 Services provided by the MCD basic service . 11
5 MCD basic service functional specification . 11
5.1 MCD basic service in the ITS architecture . 11
5.2 MCD basic service functional architecture. 12
5.3 Interfaces of the MCD basic service. 13
5.3.1 Interface to the ITS-S application layer . 13
5.3.2 Interface to the ITS-S network and transport layer . 14
5.3.2.1 General requirements . 14
5.3.2.2 Interface to the BTP over GeoNetworking stack . 15
5.3.2.3 Interface to the IPv6 stack and the combined IPv6/GeoNetworking stack . 16
5.3.3 Interface to the ITS-S management entity . 16
5.3.4 Interface to the ITS-S security entity . 16
6 Multimedia Content Dissemination . 16
6.1 Multimedia content dissemination concept . 16
6.1.1 Introduction. 16
6.1.2 Request / Event Identification . 17
6.1.3 Repetition of the MCDM . 17
6.1.4 Update of the MCDM . 17
6.1.5 Segmentation . 17
6.2 MCDM dissemination constraints . 18
6.2.1 General confidence constraints . 18
6.2.2 General security constraints . 18
6.2.3 General priority constraints. 18
7 MCDM format specification . 18
7.1 General structure . 18
7.1.1 Overview . 18
7.1.2 ITS PDU header . 19
7.1.3 MCDM management container. 19
7.1.4 MCDM situation container . 19
7.1.5 MCDM location container . 19
7.1.6 MCDM application container . 20
7.1.7 MCDM multimedia container . 20
7.2 MCDM format and decoding rules . 20
7.2.1 Common data dictionary . 20
7.2.2 MCDM data presentation . 20
8 Protocol operation of the MCD basic service . 20
8.1 Introduction . 20
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8.2 Originator ITS-S operation . 21
8.2.1 Protocol data setting rules . 21
8.2.1.1 General requirements . 21
8.2.1.2 actionID . 21
8.2.2 General protocol operation . 21
8.3 Receiver ITS-S operation . 22
8.3.1 Protocol data setting rules . 22
8.3.2 General protocol operation . 22
8.3.3 Exception handling . 23
8.3.3.1 General requirements . 23
8.3.3.2 MCDM decoding exception . 23
Annex A (normative): ASN.1 specification of MCDM . 24
Annex B (normative): Description of the Data Elements (DE) / Data Frames (DF) . 26
B.1 ack . 26
B.2 actionID . 26
B.3 application . 26
B.4 authorizedPercentageLoss . 26
B.5 detectionTime . 27
B.6 endingMDU . 27
B.7 eventPosition . 27
B.8 eventType . 27
B.9 header . 27
B.10 informationQuality . 28
B.11 linkedCause . 28
B.12 linkedDenm . 28
B.13 location . 28
B.14 management . 28
B.15 mcdmInfo . 28
B.16 mediaType . 29
B.17 mediaTypes . 29
B.18 mediaContentUTF8 . 29
B.19 mediaContentOctet . 29
B.20 multimedia . 29
B.21 numberOfMDUs . 30
B.22 numberOfPDUs . 30
B.23 pduSequenceNumber. 30
B.24 realTime . 30
B.25 referenceTime . 30
B.26 request . 31
B.27 situation . 31
B.28 size . 31
B.29 startingMDU . 31
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B.30 stationType . 31
B.31 url . 31
B.32 urls . 32
B.33 validityDuration . 32
History . 33

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6 ETSI TS 103 152 V2.1.1 (2019-11)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (https://ipr.etsi.org/).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Trademarks
The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.
ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no
right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does
not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.
Foreword
This Technical Specification (TS) has been produced by ETSI Technical Committee Intelligent Transport Systems
(ITS).
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
Introduction
ITS stations (ITS–Ss) exchange information with each other to satisfy a large diversity of customers' services.
Multimedia information provides enriched information to enhance the perception of the road users as well relatively to
their mobility environment as to the products and services being locally available. Multimedia information may also be
used to enhance the communication between individuals and communities during their mobility.
The exchange of multimedia information needs the specification of messages supporting multimedia such as pictures,
video clips, audio associated with data elements enabling their use.

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1 Scope
The present document specifies the basic service of the facilities layer supporting Multimedia Content Dissemination
(MCD). It also specifies the Multimedia Content Dissemination Message (MCDM) being used for the multimedia
content dissemination.
2 References
2.1 Normative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
https://docbox.etsi.org/Reference/.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are necessary for the application of the present document.
[1] ETSI EN 302 637-3: "Intelligent Transport Systems (ITS); Vehicular Communications; Basic Set
of Applications; Part 3: Specifications of Decentralized Environmental Notification Basic
Service".
[2] ETSI EN 302 931: "Intelligent Transport Systems (ITS); Vehicular Communications;
Geographical Area Definition".
[3] ETSI TS 102 894-2: "Intelligent Transport Systems (ITS); Users and applications requirements;
Part 2: Applications and facilities layer common data dictionary".
[4] Recommendation ITU-T X.691/ISO/IEC 8825-2 (2015): "Information technology - ASN.1
encoding rules: Specification of Packed Encoding Rules (PER)".
[5] ETSI TS 103 248: "Intelligent Transport Systems (ITS); GeoNetworking; Port Numbers for the
Basic Transport Protocol (BTP)".
[6] ETSI EN 302 636-4-1: "Intelligent Transport Systems (ITS); Vehicular Communications;
GeoNetworking; Part 4: Geographical addressing and forwarding for point-to-point and point-to-
multipoint communications; Sub-part 1: Media-Independent Functionality".
[7] ETSI EN 302 636-5-1: "Intelligent Transport Systems (ITS); Vehicular Communications;
GeoNetworking; Part 5: Transport Protocols; Sub-part 1: Basic Transport Protocol".
[8] IETF RFC 2046: "Multipurpose Internet Mail Extensions (MIME) Part Two: Media Types",
November 1996.
NOTE: Available at https://tools.ietf.org/html/rfc2046.
[9] ETSI EN 302 663 (V1.2.1): "Intelligent Transport Systems (ITS); Access layer specification for
Intelligent Transport Systems operating in the 5 GHz frequency band".
[10] ETSI TS 103 613: "Intelligent Transport Systems (ITS); Access layer specification for Intelligent
Transport Systems using LTE Vehicle to everything communication in the 5,9 GHz frequency
band".
[11] IETF RFC 1738: "Uniform Resource Locators (URL)", December 1994.
NOTE: Available at https://www.ietf.org/rfc/rfc1738.txt.
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2.2 Informative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are not necessary for the application of the present document but they assist the
user with regard to a particular subject area.
[i.1] ISO/TS 17419:2018: "Intelligent Transport Systems - Cooperative Systems - Classification and
management of ITS applications in a global context".
[i.2] ETSI EN 302 665: "Intelligent Transport Systems (ITS); Communications Architecture".
[i.3] ETSI EN 302 636-3: " Intelligent Transport Systems (ITS); Vehicular Communications;
GeoNetworking; Part 3: Network Architecture".
[i.4] ETSI TS 102 723-11: "Intelligent Transport Systems (ITS); OSI cross-layer topics; Part 11:
Interface between networking and transport layer and facilities layer".
[i.5] ETSI TS 102 723-5: "Intelligent Transport Systems (ITS); OSI cross-layer topics; Part 5: Interface
between management entity and facilities layer".
[i.6] ETSI TS 101 539-1: "Intelligent Transport Systems (ITS); V2X Applications; Part 1: Road Hazard
Signalling (RHS) application requirements specification".
[i.7] ETSI TS 101 556-1: "Intelligent Transport Systems (ITS); Infrastructure to Vehicle
Communication; Electric Vehicle Charging Spot Notification Specification".
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the following terms apply:
event: object described by Multimedia Content Dissemination Message(s)
NOTE: E.g. road hazard, driving environment, traffic condition, or Point of Interest.
MCD protocol: facilities layer protocol to control the dissemination of multimedia data such as photos/pictures, video
clips, audio
Multimedia Content Dissemination (MCD): facilities layer function that operates the MCD protocol
Multimedia Content Dissemination Message (MCDM): one or more facilities layer PDUs that contain multimedia
content data
originator ITS-S: ITS-S that generates and transmits Multimedia Content Dissemination Messages
receiver ITS-S: ITS-S that receives and processes Multimedia Content Dissemination Messages
3.2 Symbols
For the purposes of the present document, the following symbols apply:
IF.Mng Interface between MCD basic service and ITS management entity
IF.N&T Interface between MCD basic service and ITS networking & transport layer
IF.SEC Interface between MCD basic service and ITS security entity
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3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
ACK ACKnowledgement
API Application Program Interface
ASN.1 Abstract Syntax Notation 1
BTP Basic Transport Protocol
DE Data Element
DEN Decentralized Environmental Notification
DENM Decentralized Environmental Notification Message
DF Data Frame
FA-SAP Facilities/Applications Service Access Point
GN GeoNetworking
HMI Human Machine Interface
IANA Internet Assigned Numbers Authority
ISO International Organization for Standardization
ITS Intelligent Transportation System
ITS-S ITS Station
LDM Local Dynamic Map
MCD Multimedia Content Dissemination
MCDM Multimedia Content Dissemination Message
MF-SAP Management/Facilities Service Access Point
MTU Maximum Transmit Unit
MTU_AL Maximum Transmit Unit of Access Layer
NACK Negative ACKnowledgement
NF-SAP Networking & Transport/Facilities Service Access Point
OSI Open System Interconnection
PCI Protocol Control Information
PDU Protocol Data Unit
PER Packet Error Rate
POI Point Of Interest
RFC (IETF) Request For Comments
RT Repetition Timer
SAP Service Access Point
SF-SAP Security/Facilities Service Access Point
UTF Unicode (or Universal Coded Character Set) Transformation Format
V2X Vehicle-to-Everything
4 MCD basic service introduction
4.1 Background
Multimedia Content Dissemination Messages (MCDMs) contain multimedia content describing events for various
applications. MCDMs can be broadcasted to reach all users being in the coverage of the used communication
technology. They can also be broadcasted in geographical area. MCDMs can be targeted to a particular user or to a
community of users using multicast. Finally, MCDMs can be addressed to a particular user through an established peer
to peer session. MCDMs may incorporate several multimedia containers including pictures, video clips, audio and data.
They may constitute long messages requiring segmentation to ensure their complete consistent transfer respecting the
order of transmitted segments in spite of some possible losses. Received MCDMs need to be filtered according to their
use context and user preferences.
Multimedia Content Dissemination (MCD) is a facilities layer function which is mainly used by ITS applications to
control the dissemination of pictures, video clips, audio and data using ITS communication technologies. Applications
classes to be supported by MCD can be listed as follows:
• Road safety, e.g. signalling some obstacle on the road as specified in ETSI TS 101 539-1 [i.6] or some
dangerous traffic situations using pictures or video clips.
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• Traffic management, e.g. providing pictures or videos of the current traffic situations.
• Mobility e.g. providing some multimedia description of POI availability, e.g. parking, electric vehicle charging
spots [i.7], rest areas, etc.
• National patrimony information, e.g. monuments, local specialties, arts, etc.
• Commercial information, e.g. products/services advertisement, special sales, open da
...