Page 547 - Unleashing the potenti al of the Internet of Things

Unleashing the potential of the Internet of Things 5

Table of Contents
Page

1 Scope ............................................................................................................................. 535

2 References ..................................................................................................................... 535
3 Definitions .................................................................................................................... 535
3.1 Terms defined elsewhere ................................................................................ 535
3.2 Terms defined in this Recommendation ......................................................... 536

4 Abbreviations and acronyms ........................................................................................ 536

5 Conventions .................................................................................................................. 537
6 Functional requirements and functions of the NGN for USN applications and
services ......................................................................................................................... 537

6.1 NGN functional requirements ........................................................................ 537
6.2 Functional architecture model ........................................................................ 538
6.3 Functions to support USN applications and services ..................................... 539

7 Functional architecture of the NGN for USN applications and services ...................... 542
7.1 Transport processing functional entities ......................................................... 542
7.2 Transport control functional entities .............................................................. 543

7.3 Service control functional entities .................................................................. 543
7.4 Application support functions and service support functions ........................ 544
8 Security considerations ................................................................................................. 544
Appendix I Analysis of service requirements and network capabilities defined in
Recommendation ITU-T Y.2221 .................................................................................. 545

I.1 Requirements for extensions to NGN capabilities ......................................... 545
I.2 Requirements supported by existing NGN capabilities .................................. 547
I.3 Mapping table of the requirements and the extended NGN functions ........... 548
I.4 Mapping table of the requirements and the existing NGN functions ............. 549

Appendix II USN middleware functions provided by NGN ................................................... 550
Bibliography............................................................................................................................. 551

Rec. ITU-T Y.4403/Y.2026 (07/2012) 533