Page 137 - 5G Basics - Core Network Aspects

Core network aspects 1

the end-user sessions associated with it should be moved together to maintain service continuity by avoiding
any downtime.

Service deployment functions can also be used for coordination of services. For example, they may manage
deployment of applications that together constitute a service across multiple administrative domains of the
same network operator.

14 Service developer functions
Service developer functions enable service developers to design specific services to be deployed on a LINP.
The functions combine service components, which have been developed in advance and can be reused.
Service elements may consist of widely used data processing functions, like data forwarding, data routing,
and media transcoding. They can also include additional data processing functions, such as data or packet
caching and packet flow processing.

15 Gateway functions
Gateway functions are used to connect end-users to LINPs. Gateway functions may also provide
authentication and authorization functions for end-users to access LINPs. Figure 10 illustrates the gateway
functions and their interactions with the LINP management functions.

Figure 10 – Gateway functions in relation to LINP management functions

Through the UNI reference points, end-users' data are exchanged between LINPs and end-users. The end-
users' data frames/packets through the UNI reference points should include the following information:
− End-users' data;
− LINP IDs or correspondent IDs to uniquely identify the source LINP and the destination LINP;
− Credentials for access control (optional).
Through LMIs, access policies of LINPs for individual end-users are configured. For this purpose, the following
information should be provided at the LMI:
− Service developers' credentials;
− LINP access policies for end-users.

Through LMIs, end-users' credentials for accessing LINPs are delivered. For this purpose, the following
information should be provided at the LMI:

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