Page 667 - Unleashing the potenti al of the Internet of Things

Unleashing the potential of the Internet of Things 5

ITS station reference architecture NGN corresponding functional architecture
Applications
Applications

Service/Application
Facilities support functions

Management Security
Networking Management Security
and transport Transport control
functions

Access
technologies Transport
functions
Y.2281(11)_FII-3-App-II

F Figure II.3 – Correspondence between the ITS station reference architecture
and the functions of NGN functional architecture

One of the fundamental considerations is to address the support of ITS specific aspects driven by
service requirements, operation, administration and management of ITS. When ITS specific
services need NGN capabilities, NGN functions should be incorporated into ITS station features, as
shown in Figure II.4. Most of the detailed functions in the ITS station reference architecture are
well mapped with the relevant functions of the NGN functional architecture, except for
"Information support", the role of which is not clear, and the difference between "Application
support" and "Communication support".

II.3 Features and functions for a networked vehicle
A networked vehicle should be operated as a part of ITS as well as a part of communication objects,
used for public and private communication services and applications. This means that a networked
vehicle should have enough capabilities to support ITS specific features and general communication
features. Therefore, it is highly anticipated that combined (or harmonized) functions to support both
features would be incorporated into a networked vehicle.

In this regard, the ITS station reference architecture covers the ITS specific service features but not
enough to support communication features, specifically the need to adopt capabilities from the
communication functions to support mobility, security, management capability and connectivity. It
is anticipated to use capabilities provided by NGN for such features rather than develop different
functions because a networked vehicle is also a part of communication objects, whether it is moving
or stationary. Therefore, functions for a networked vehicle, especially over the NGN environment,
are harmonized using both the ITS station reference architecture and the NGN functional
architecture, as shown in Figure II.4.

Rec. ITU-T Y.4407/Y.2281 (01/2011) 653