Page 553 - Unleashing the potenti al of the Internet of Things

Unleashing the potential of the Internet of Things 5

USN applications using sensor networks
ANI SNI
Identification, authentication and authorization
Profile management (Service Profile)
Security Application Support Functions
and Service Support Functions
Functions
from
other
Identification, authentication and authorization IdM
Functions Service Control and Content Delivery Functions Service
Providers
Service User Service
Sensor network management Profiles Content Delivery Functions
Device profile management Control Functions
Security (key management)
Accounting management Service Stratum

Differentiated QoS and data prioritization Management Functions Network Attachment Mobility Resource
Connectivity and Control Functions Management and
Location management Transport User and Control Admission
control
Identification, authentication and authorization Profiles Functions Functions
Functions
Transport Control Functions from
End-User Other
Security (Sensor Data) Functions Networks
Transport Functions
Application traffic control
Differentiated QoS and data prioritization
Mobility UNI Transport Stratum NNI
Control Management
Media IdM

Figure 2 – Overall functional architecture model

As seen in Figure 2, there are no additional functions beyond [ITU-T Y.2012] to support
requirements for USN applications and services. However, some NGN functions should be
extended to support requirements in terms of functionalities. Clause 6.3 describes NGN functions to
support USN applications and services.

6.3 Functions to support USN applications and services

This clause describes how the functional requirements identified in clause 6.1 are supported in the
functional architecture model shown in clause 6.2. This clause focuses on the NGN capabilities
which need the extensions of NGN functions to support USN applications and services.

The extension of NGN functions means that the NGN functions defined in [ITU-T Y.2012] should
support additional capabilities for the requirements of USN applications and services. The extension
of NGN functions can be achieved by implementation of additional capabilities of each stratum
function.

Rec. ITU-T Y.4403/Y.2026 (07/2012) 539