A white Paper from Alcatel Lucent on Introduction to Evolved Packet Core.
This white paper provides a brief introduction to Evolved Packet Core — a new mobile core for LTE. Herein, key concepts and functional elements-EPC gateways (Serving Gateway and Public Data Network Gateway), Mobility Management Entity (MME) and Policy and Charging Rules Function (PCRF)-are outlined, as well as key changes in LTE requirements imposed on the Evolved Packet Core, and the deployment challenges.
Table of contents
1 1. Executive summary
2 2. Evolved Packet Core overview
2 2.1 EPC: Radical changes in the network
2 2.2 EPC: Radical changes in the network
3 3. EPC components description
4 3.1 Serving Gateway
4 3.2 Packet Data Network Gateway
5 3.3 Mobility Management Entity
6 3.4 Policy and Charging Rules Function
6 4. EPC challenges
8 5. Abbreviations
