Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Mobility management based on Mobile IPv4; User Equipment (UE) - foreign agent interface; Stage 3 (V12.0.0; 3GPP TS 24.304 version 12.0.0 Release
The present document describes the stage 3 aspects of mobility management for User Equipment (UE) using IETF Mobile IPv4 foreign agent mode to access the Evolved Packet Core Network (EPC) through trusted non-3GPP access networks and for mobility management of UE between the 3GPP access network and trusted non-3GPP access networks. In particular@ the present document describes the UE ?C Mobile IPv4 Foreign Agent (FA) interface stage 3 aspects@ where the FA functionality is located within the access network in the non-3GPP access domain. The present document is applicable to the User Equipment (UE) and the network node implementing the FA functionality.