Page 789 - 2015 Security in Telecommunications and Information Technology
P. 789
Unleashing the potential of the Internet of Things 5
Figure 3 – oneM2M functional architecture in the IoT reference model
In Figure 3, Mca can be considered as reference points between IoT applications and the service
support and application support layer with inclusion of the general management capabilities and
general security capabilities. Mch can be considered as reference points between charging server and
the service support and application support layer and with inclusion of the general management
capabilities and general security capabilities. Mcc and Mcc' can be considered as the reference point
between the service support and application support layer of different nodes. Here, Mcc' can be
considered to connect to the CSE of other service providers.
As shown in Figure 3, the oneM2M CSE, like the ETSI M2M SCL, includes only general functions
of service support and application support layer, general management capabilities and general
security capabilities.
Compared to the oneM2M CSE, the ITU-T M2M service layer includes specific support capabilities
in the service support and application support layer, specific management capabilities and specific
security capabilities as shown in Figure 1.
7 Requirements of the ITU-T M2M service layer
7.1 Common requirements
7.1.1 Communication management
– Message scheduling:
The ITU-T M2M service layer is required to support various priorities of messages.
– Various types of communications:
The ITU-T M2M service layer is required to support various types of communication
(e.g., on-demand, continuous) requested by applications. It should also support notification
of communication failure.
– Various underlying network technologies support:
The ITU-T M2M service layer is required to support underlying network technologies.
Rec. ITU-T Y.4413/F.748.5 (11/2015) 775
