Page 311 - ITU-T Focus Group IMT-2020 Deliverables

ITU-T Focus Group IMT-2020 Deliverables 5

TIC

UNIC - CP

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

Uc
TIC Service Chain

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

Figure 5-2 – Deployment model of UNIC

5.3 Functional Components
5.3.1 UNIC-CP

The UNIC-CP component is the core component of UNIC which provides the control plane function. The
functionalities of UNIC-CP are categorized into common functionalities and dedicated functionalities.

The common functionalities are those required more than one access technologies and the logics are similar
or the same. The UNIC-CP has the following functionalities:

– authentication and authorization
– address allocation
– charging
– policy

– lawful interception
– etc.
During runtime, different access technologies which share the common functionalities can use a single
common functionality instance.
The dedicated functionalities are those required only by a particular access technology, so there can be
couples of sets of dedicated functionalities and each of those will fulfil the requirement of a specific access
technology. Mobility management and Session Management required by cellular networks are examples of
the dedicated functionalities.

5.3.2 UNIC-UP
The UNIC-UP component provides the user plane function, and works under control of UNIC-CP. The main
task of UNIC-UP is packets switching along with a minimum set of necessary logics. The UNIC-UP also reports
user plane events to the UNIC-CP on demand of the later.

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