6.6 4G/5G Interworking

33.1273GPPLawful Interception (LI) architecture and functionsRelease 18TS

Figure 6.6-1 depicts interworking between EPC and the 5G architecture. The network functions are depicted in grey, while the LI elements are depicted in blue.

Figure 6.6-1: EPC/5G Interworking LI architecture

NOTE: A CC-POI may also be present in the MME and SMF for roaming NIDD interception, which are not shown in figure 6.6-1.