Page 551 - Unleashing the potenti al of the Internet of Things

Unleashing the potential of the Internet of Things 5

5 Conventions

None.

6 Functional requirements and functions of the NGN for USN applications and services

6.1 NGN functional requirements
[ITU-T Y.2221] describes the NGN service requirements and capabilities to support USN
applications and services, and clause 8.1 of [ITU-T Y.2221] specifically states the following
requirements for extensions or additions to NGN capabilities to support USN applications and
services:

• Network management
• Profile management
– Service profile
NOTE 1 – Service profile requirement can be supported by existing NGN capabilities. See
clause I.1.
– Device profile
• Open service environment (OSE)

– Service registration and discovery
– Inter-working with service creation environments
NOTE 2 – This Recommendation does not take these requirements into consideration.
See clause I.1.
• Quality of service (QoS)
– Application traffic control
NOTE 3 – Application traffic control can be supported by existing NGN capabilities. See clause I.1.
• Privacy
NOTE 4 – This Recommendation does not take this requirement into consideration. See clause I.1.

In addition to these capabilities, clause 8.2 of [ITU-T Y.2221] explains that the following
capabilities are supported by the existing NGN capabilities to support USN applications and
services:
• Open service environment
– Service composition and coordination

NOTE 5 – This Recommendation does not take this requirement into consideration. See clause I.1.
• Quality of service
– Differentiated QoS and data prioritization

• Connectivity
• Location management
• Mobility
• Security
• Identification, authentication and authorization

• Accounting and charging
Appendix I describes requirements for the support of USN applications and services in NGN and
allocates the corresponding functions of NGN to satisfy the requirements.

Rec. ITU-T Y.4403/Y.2026 (07/2012) 537