Page 138 - 5G Basics - Core Network Aspects

1 Core network aspects

− End-users' credential.

Gateway functions should include the following functions.
− Access control (policy enforcement) function, which determines if an end-user's data
frames/packets are allowed to go through a specified LINP by checking the credential in the end-
user's data frames/packets;

− LINP select function, which extracts LINP IDs or correspondent IDs from end-users' data
frames/packets and identify destination LINPs;
− LINP connect function, which makes connections between end-users and LINPs with protocol
translation if it is needed.

Gateway functions may provide internal reference point for gateway control within an administrative
domain. As shown in Figure 10, the internal reference point resides between gateway functions and LINP
management functions. It is used to deliver the following information from LINP management functions to
gateway functions:

− Information for controlling accesses from end-users to LINPs;
Relationship between end-users and the LINPs.
− Another internal reference point may reside between gateway functions and physical resource
functions. The data frames/packets through this internal reference point should include the
following data:
− End-users' data;
− LINP ID or correspondent ID from which the destination LINP is uniquely specified.

16 User terminal functions
User terminal functions connect end-users to LINPs through gateway functions. User terminal functions may
also implement authentication functions. Figure 11 illustrates the user terminal functions and the interaction
with other functions.

Figure 11 – User terminal functions in relation to gateway functions

Through the UNI reference points, end-users' data are exchanged between gateway functions and user
terminal functions. The data frames/packets should include the following information:
− End-users' data;

− LINP IDs or correspondent IDs to uniquely identify the source LINP and the destination LINP;

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