Elektrische Signalverarbeitung Dr. Fischer GmbH

ETSI TTCN-3User conference 2009

3 – 5 June 2009ETSI, Sophia Antipolis, France

Smart Communications for Intelligent Transport Systems

(SCITS) (SCITS) Approach for Testing

Dr. Hans-Joachim FischerESF GmbH

HJFischer@fischer-tech.de

Early ITS

08:48:48 AM 5.6.2009TTCN-3 user conference 2009

http://www.tc204wg16.de

CommunicationsAccess forLand

08:48:48 AM 5.6.2009TTCN-3 user conference 2009

LandMobiles

- since 2002 -

CALM standards successfully validated within the CVIS project

http://portal.etsi.org

ETSI TCIntelligent

Transport

08:48:48 AM 5.6.2009TTCN-3 user conference 2009

TransportSystems

- since 2007 -

Communication Scenario

08:48:48 AM 5.6.2009TTCN-3 user conference 2009

ITS networking

ITS Ad Hoc

ITS Access

NetworkPrivate

AccessNetwork

ITS Domain

ITS Station Boundary

08:48:48 AM 5.6.2009TTCN-3 user conference 2009

ITS Ad Hoc

Network ITS Station-Internal

Network

Gateway

AccessNetwork

Public

AccessNetwork

CoreNetworks

(e.g. Internet)

Generic Domain

ITS Station

t

Facilities

Applications An ITS station (ITS-S) is a logical or physical entity in a communication network, comprised of applications, facilities, networking & transport

08:48:48 AM 5.6.2009TTCN-3 user conference 2009

Access

Networking &

Transport

Ma

na

ge

me

nt

Se

cu

rity

networking & transport and access layer components presented in figure 1, that operate within a bounded secure management domain

Blocks are interconnected either via observable interfaces or via SAPs.

ITS sub-systems

Roadside Host

Access Router

Roadside Gateway

Roadside ITS station

Boarder Router

VMS

12

3A

45

6B

78

9

* 0 #R

Personal ITS station

08:48:48 AM 5.6.2009TTCN-3 user conference 2009

Vehicle Host

Mobile Router

Vehicle Gateway

ECU

ECU

Vehicle ITS station

Central Host

Border Router

Central Gateway

Central System

Central ITS station

ITS core

Mapping ITS-S

applicationCI

status

MMIITS-S

applications

Set of rules

Communication interfaces and applications are decoupled!

Based on rules and policies, functional requirements from ITS-S applications, and static and dynamic properties of communication interfaces, i.e. implementations of access technologies, ITS communication channels are assigned to ITS-S applications.

08:48:48 AM 5.6.2009TTCN-3 user conference 2009

process requirement

list

status

list

SCITS

forwardingtables

SCITSCIs

assigned to ITS-S applications.

Abstractions have to be used!

An ITS communication channel is defined by a mapping of an ITS-S application via a selected networking & transport layer protocol to the best suited communication interface. Some of these mappings may be static in a given regulatory domain, others will be highly dynamic, making best use of redundant and complementary access technologies by means of horizontal and vertical handover procedures.

ITS standards

TC ITS WG1Facilities Layer

CEN / ISOITS Applications

TC

IT

S W

G2

Arc

hitectu

re &

Cro

ss-L

ayer

TC

ITS

WG

5

08:48:48 AM 5.6.2009TTCN-3 user conference 2009

TC ITS WG4Access Layer

TC ITS WG3Networking &Transport Layer

TC

IT

S W

G2

Arc

hitectu

re &

Cro

ss TC

ITS

WG

5S

ecurityP

rofile

1

Pro

file

2

Pro

file

3

Pro

file

4

Pro

file

5

Pro

file

n

Challenges for testing

• Unknown number of different profiles.• Functionality of abstractions of elements.•Test of management / security – Interaction with OSI layers via non-observable SAPs.• Conformance tests for combinations of standards.• ...

08:48:48 AM 5.6.2009TTCN-3 user conference 2009

• ...

→ Developers of base standards need a feed-back from experts on testing.

→ General approach for testing of SCITS and ITS needs to be developed.

→ General decision to use TTCN-3.

The end

ITS consultant

ESF GmbHHans-Joachim Fischer

Fichtenweg 9D-89143 Blaubeuren

08:48:48 AM 5.6.2009TTCN-3 user conference 2009

D-89143 BlaubeurenGermany

http://fischer-tech.infohttp://www.tc204wg16.de

http://its-standards.infoHJFischer@fischer-tech.de

phone: +49 7344 9191-88fax: +49 7344 9191-23