Page 457 - 5G Basics - Core Network Aspects

Core network aspects 1

Figure 3 – Scenario for assigning FEs to different physical nodes
when using a discrete PAM service number

In this scenario, the relationship of the functional entities and the physical nodes is as follows:
• the AP function maps to the AP;

• the mobile station PAM function maps to the mobile station (for simplicity, other MS functions are
not shown);
• the CCF maps to the LE;

• the SSF maps to the SSP;
• the PAM-SCF maps to the PAM-SCP;
• the SRF functional entity maps to the IP.
Figure 4 illustrates the scenario of allocating all the PAM-service functional entities to the same physical node
when a fixed PAM service number is used. Note that the CCF and SSF have been mapped to different nodes.
This separation of the CCF and SSF is described in further detail in later clauses.

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