Page 259 - 5G Basics - Core Network Aspects

Core network aspects 1

The functions of MAS-F are as follows:

1) Provide multi-connection application support functionalities, such as executing service procedures
of service composition and service decomposition based on subscriber's profile and/or on available
network capabilities, etc.;
2) Support legacy application (i.e., single-connection application) by hiding the existence of multi-
connection to applications;
3) Support the interaction between multi-connection applications and legacy applications;
4) Provide open interfaces for applications to use the capabilities and resources of multi-connection.

6.2.5 Multi-connection control function
The multi-connection control function coordinates the control of multi-connection communication across
heterogeneous access technologies such as UMTS, LTE and WiFi.
As the key function in multi-connection architecture, it contains the following FEs, as shown in Figure 6-3:
1) Multi-connection user profile functional entity (MUP-FE);

2) Multi-connection policy control functional entity (MPC-FE);
3) Multi-connection coordination functional entity (MC-FE);
4) Multi-connection registration functional entity (MR-FE).

Pa

Multi-connection
Control Function
Multi-connection
User Profile FE

Multi-connection
Policy Control FE Ps

Multi-connection Cm
Coordination FE

Multi-connection
Registration FE

Rt

Figure 6-3 – Multi-connection control function

6.2.6 Multi-connection UE characteristics
Multi-connection requires new functions in both the UE and network. To clarify the definition of a multi-
connection UE, the distinction between single connection UE (SUE) and multi-connection UE (MUE) is shown
in Figure 6-4.

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