If we refer to the figure we can see the following interfaces in the SAE- LTE architecture. A basic description of all the interfaces are provided in this post. Refer to¬† TS – 23401 for more details. S1-MME : Interface…

The SGW routes and forwards user data packets, while also acting as the mobility anchor for the user plane during inter-eNB handovers and as the anchor for mobility between LTE and other 3GPP technologies (terminating S4 interface and relaying the…