ISO 21219-10:2023

Intelligent transport systems — Traffic and travel information (TTI) via transport protocol experts group, generation 2 (TPEG2) — Part 10: Conditional access information (TPEG2-CAI)

This document defines the TPEG conditional access information (CAI) application. It allows the protection of the content of a TPEG service from unauthorized access. It further supports the management of subscriber information (e.g. control words and entitlement control message, ECM) on client devices in order to setup, prolong or revoke a subscription on a given client device. The CAI application defines: — the logical channel for the transmission of the additional CAI, and — how the CAI is linked and synchronized to the scrambled content. This document is related to conditional access applied on the service component level. It can be integrated into different conditional access systems. NOTE The basic concept behind the CAI application is to transport CAI in separate TPEG service components of a dedicated application type and to define a service and network information (SNI) table that contains the link between scrambled content and related CAI.

Systèmes intelligents de transport — Informations sur le trafic et le tourisme via le groupe expert du protocole de transport, génération 2 (TPEG2) — Partie 10: Information d'accès conditionnel (TPEG2-CAI)

General Information

• Status: Published
• Publication Date: 18-May-2023
• ICS: 03.220.01 - Transport in general
• ICS: 35.240.60 - IT applications in transport
• Technical Committee: ISO/TC 204 - Intelligent transport systems
• Drafting Committee: ISO/TC 204/WG 10 - Traveller information systems
• Current Stage: 6060 - International Standard published
• Start Date: 19-May-2023
• Due Date: 04-Sep-2022
• Completion Date: 19-May-2023

Relations

• Revises: ISO/TS 21219-10:2016 - Intelligent transport systems — Traffic and travel information (TTI) via transport protocol experts group, generation 2 (TPEG2) — Part 10: Conditional access information (TPEG2-CAI)
• Effective Date: 23-Apr-2020

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 21219-10
First edition
2023-05
Intelligent transport systems —
Traffic and travel information (TTI)
via transport protocol experts group,
generation 2 (TPEG2) —
Part 10:
Conditional access information
(TPEG2-CAI)
Systèmes intelligents de transport — Informations sur le trafic et le
tourisme via le groupe expert du protocole de transport, génération 2
(TPEG2) —
Partie 10: Information d'accès conditionnel (TPEG2-CAI)
Reference number
ISO 21219-10:2023(E)
© ISO 2023
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ISO 21219-10:2023(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2023

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

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© ISO 2023 – All rights reserved
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ISO 21219-10:2023(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction .................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ..................................................................................................................................................................................... 1

3 Terms and definitions .................................................................................................................................................................................... 1

4 Abbreviated terms ............................................................................................................................................................................................. 2

5 Application specific constraints ........................................................................................................................................... ...............2

5.1 Application identification ............................................................................................................................................................. 2

5.2 Version number signalling ........................................................................................................................................................... 2

5.3 TPEG service component frame .............................................................................................................................................. 2

6 Conditional access methodology ........................................................................................................................................................2

7 CAI structure............................................................................................................................................................................................................ 3

8 CAI message components ........................................................................................................................................................................... 4

8.1 CAIMessage................................................................................................................................................................................................ 4

Annex A (normative) TPEG CAI, TPEG-binary representation ............................................................................................... 5

Annex B (normative) TPEG CAI, tpegML representation .............................................................................................................. 6

Bibliography ................................................................................................................................................................................................................................ 7

iii
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ISO 21219-10:2023(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www.iso.org/patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to

the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see

www.iso.org/iso/foreword.html.

This document was prepared by Technical Committee ISO/TC 204, Intelligent transport systems.

This first edition cancels and replaces the first edition (ISO/TS 21219-10:2016), which has been

technically revised.
The main changes are as follows:

— the document has been changed from a Technical Specification to an International Standard.

A list of all parts in the ISO 21219 series can be found on the ISO website.

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www.iso.org/members.html.
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ISO 21219-10:2023(E)
Introduction
0.1 History

TPEG technology was originally proposed by the European Broadcasting Union (EBU) Broadcast

Management Committee, who established the B/TPEG project group in the autumn of 1997 with a brief

to develop, as soon as possible, a new protocol for broadcasting traffic and travel-related information in

the multimedia environment. TPEG technology, its applications and service features were designed to

enable travel-related messages to be coded, decoded, filtered and understood by humans (visually and/

or audibly in the user’s language) and by agent systems. Originally, a byte-oriented data stream format,

which can be carried on almost any digital bearer with an appropriate adaptation layer, was developed.

Hierarchically structured TPEG messages from service providers to end-users were designed to

transfer information from the service provider database to an end-user’s equipment.

One year later, in December 1998, the B/TPEG group produced its first EBU specifications. Two

documents were released. Part 2 (TPEG-SSF, which became ISO/TS 18234-2) described the syntax,

semantics and framing structure which was used for all TPEG applications. Meanwhile, Part 4 (TPEG-

RTM, which became ISO/TS 18234-4) described the first application for road traffic messages.

Subsequently, in March 1999, CEN/TC 278, in conjunction with ISO/TC 204, established a group

comprising members of the former EBU B/TPEG and this working group continued development

work. Further parts were developed to make the initial set of four parts, enabling the implementation

of a consistent service. Part 3 (TPEG-SNI, later ISO/TS 18234-3) described the service and network

information application used by all service implementations to ensure appropriate referencing from

one service source to another.

Part 1 (TPEG-INV, later ISO/TS 18234-1) completed the series by describing the other parts and their

relationship; it also contained the application IDs used within the other parts. Additionally, Part 5, the

public transport information application (TPEG-PTI, later ISO/TS 18234-5), was developed. The so-

called TPEG-LOC location referencing method, which enabled both map-based TPEG-decoders and non-

map-based ones to deliver either map-based location referencing or human-readable text information,

was issued as ISO/TS 18234-6 to be used in association with the other applications of parts of the

ISO 18234 series to provide location referencing.
The ISO 18234 series has become known as TPEG Generation 1.
0.2 TPEG Generation 2

When the Traveller Information Services Association (TISA), derived from former forums, was

inaugurated in December 2007, TPEG development was taken over by TISA and continued in the TPEG

applications working group.

It was about this time that the (then) new Unified Modelling Language (UML) was seen as having major

advantages for the development of new TPEG applications in communities who would not necessarily

have the binary physical format skills required to extend the original TPEG TS work. It was also realized

that the XML format for TPEG described within the ISO 24530 series (now superseded) had a greater

significance than previously foreseen, especially in the content-generation segment, and that keeping

two physical formats in synchronism, in different standards series, would be rather difficult.

As a result, TISA set about the development of a new TPEG structure that would be UML-based. This has

subsequently become known as TPEG Generation 2 (TPEG2).

TPEG2 is embodied in the ISO 21219 series and it comprises many parts that cover an introduction,

rules, toolkit and application components. TPEG2 is built around UML modelling and has a core of

rules that contain the modelling strategy covered in ISO 21219-2, ISO 21219-3 and ISO 21219-4 and the

conversion to two current physical formats: binary (see Annex A) and XML (see Annex B); others can

be added in the future. TISA uses an automated tool to convert from the agreed UML model XMI file

directly into an MS Word document file, to minimize drafting errors; this file forms the annex for each

physical format.
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ISO 21219-10:2023(E)

TPEG2 has a three-container conceptual structure: message management (ISO 21219-6), application

(several parts) and location referencing (ISO/TS 21219-7). This structure has flexible capability and

can accommodate many differing use cases that have been proposed within the TTI sector and wider

for hierarchical message content.

TPEG2 also has many location referencing options as required by the service provider community, any

of which may be delivered by vectoring data included in the location referencing container.

The following classification provides a helpful grouping of the different TPEG2 parts according to their

intended purpose. Note that the list below is potentially incomplete, as there is the possibility that new

TPEG2 parts will be introduced after the publication of this document.

— Toolkit parts: TPEG2-INV (ISO 21219-1), TPEG2-UML (ISO 21219-2), TPEG2-UBCR (ISO 21219-3),

TPEG2-UXCR (ISO 21219-4), TPEG2-SFW (ISO 21219-5), TPEG2-MMC (ISO 21219-6), TPEG2-LRC

(ISO/TS 21219-7).

— Special applications: TPEG2-SNI (ISO 21219-9), TPEG2-CAI (ISO 21219-10 - this document), TPEG2-

LTE (ISO/TS 21219-24).
— Location referenc
...