Page 310 - ITU-T Focus Group IMT-2020 Deliverables

5 ITU-T Focus Group IMT-2020 Deliverables

– Unique user identity and billing, service consistency and continuity across different access
technologies, which improves the user experience.

5 Architecture

5.1 Functional Architecture Model
The UNIC architecture is shown in Figure 5-1:

UNIC - CP

Common Functionalities
Authentication Address Lawful Converged
Authorization Allocation Charging Policy Interception … ...
User Data
Ud
Cellular Dedicated Functionalities WLAN Dedicated Functionalities Fixed BB Dedicated Functionalities
MM SM QoS QoS
Management
and
Orchestration
Uc
Service Chain

UNIC - UP
Firewall DPI … ...
User Plane User Plane User Plane User Plane
For 5G For 4G For WLAN For Fixed BB

Figure 5-1 – Functional Architecture of UNIC
UNIC is composed of five main components:
– UNIC-CP

– UNIC-UP
– Converged User Data
– Service Chain
– Management and Orchestration

The core function of the architecture is divided into control plane and user plane functions, which are UNIC-
CP and UNIC-UP in this architecture. UNIC-CP takes most of the control logics, while UNIC-UP mainly provides
packets switching under instruction of UNIC-CP. The Converged User Data is the central data repository in
this architecture, in which most of the permanent and temporary data is stored. The Service Chain is a
supplementary to the UNIC-UP which provides user plane enhancement features.

5.2 Deployment Model

As shown in Figure 5-2, UNIC functional components can be deployed on the Telecom Integrated Cloud (TIC),
NFV/SDN based common infrastructure with management and orchestration. However, some UP functions
may be implemented based on dedicated hardware to reach better performance.

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