Page 563 - 2015 Security in Telecommunications and Information Technology

Unleashing the potential of the Internet of Things 5

I.4 Mapping table of the requirements and the existing NGN functions

Clause I.2 defines the existing NGN capabilities to satisfy the requirements of [ITU-T Y.2221].
This clause allocates proper functions of NGN which are defined in [ITU-T Y.2012] to support the
capabilities.

Requirements Corresponding functions

Profile management for service • Application support functions and service support functions
registration and discovery (ASF&SSF)

Quality of service: Application traffic • Transport functions
control – Access network functions
– Edge functions
• Core transport functions
Quality of service: Differentiated QoS • Transport functions
and data prioritization – Access network functions
– Edge functions
– Core transport functions
• Transport control functions
– Resource and admission control functions (RACF)
Connectivity • Transport control functions
– Network attachment control functions (NACF)
Location management • Transport control functions
– Network attachment control functions (NACF)

Mobility • Transport functions
– Access network functions
– Mobility management and control functions (MMCF)
Security • Management functions (security key management)
• End-user functions (data security)
• Application support functions and service support functions
(ASF&SSF)
Identification, authentication and • Transport control functions
authorization – Network attachment control functions (NACF)
• Service control and content delivery functions (SC&CDF)
– Service control functions (SCF)
• Application support functions and service support functions
(ASF&SSF)
Accounting and charging • Management functions (accounting management)
– Charging and accounting functions (CAF)

Rec. ITU-T Y.4403/Y.2026 (07/2012) 549