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LTE-EPC Networks and Signalling


The LTE Evolved Packet System (EPS) is an evolution of the 3GPP system architecture with the vision of an all-IP network finally realized.

EPS consists of the Evolved UTRAN (E-UTRAN) and Evolved Packet Core (EPC).

LTE EPC Network supports mobility with the existing 3GPP and non-3GPP wireless networks to facilitate smooth migration, interworking, and service continuity across these networks.

The EPC and E-UTRAN will be optimized for the delivery of IP-based services. EPS will use IMS as the network provided services and manage QoS across the system, enabling a dynamic mix of voice, video, and data services.

This course provides a detailed look at the architecture of the EPC and the signalling among the UE, E-UTRAN and EPC network components.

 Duration: 40 hours

Fee: 30k

Course Overview

  1. LTE-EPC Network Architecture
    • Key Requirements
    • Network Architecture
    • EPC Network Nodes
    • Roaming Architecture
    • Interworking Framework in EPC
  2. LTE-EPC Protocols
    • LTE Signaling Protocols
    • X2-AP Protocol (eNB ← →eNB)
    • S1-AP Protocol (eNB ← →MME)
    • Non-Access Stratum (NAS) (UE ← →MME)
    • Stream Control Transmission Protocol (SCTP)
    • GPRS Tunneling Protocol (GTP)
    • Diameter (MME ← →HSS), (PCRF ←→PCEF)
  1. LTE-EPC Signaling Fundamentals
    • UE and EPC Identifiers
    • PDN Connections and Access Point Names(APNs)
    • EPS Bearer
    • Signaling Bearer
  1. Security in LTE-EPC
    • Security Features in LTE-EPC
    • UE ←→ Network Security
    • EPS-AKA
  2. Network Access on LTE-EPC
    • Overview of Initial Attach
    • Initial Attach
    • PDN Connectivity
    • Default EPS Bearer Setup
    • IP Address Allocation
  1. QoS and PCC Framework in LTE-EPC
    • LTE QoS Model
    • PCC Architecture
    • Traffic Flow and Classification
  1. Session Establishment and PDN Connectivity
    • Dedicated Bearer Establishment
    • Multiple PDN Connectivity
    • Idle Mode and EMM States
    • Paging and Service Request
    • Dedicated Bearer Deactivation
    • Dedicated Bearer Modulation
  1. Intra-LTE Mobility
    • Intra-LTE Handover Scenarios
    • X2-based Mobility
    • S1-based Mobility (Inter-MME Handover)
    • Tracking Area Updates
  1. IMS and Support for Voice
    • Seamless Mobility
    • IP Multimedia Subsystem (IMS)
    • Circuit-Switched Fallback (CSFB)
    • Voice Call Continuity (VCC)
    • Single-Radio Voice Call Continuity (SR-VCC)
  1. Deployment Considerations
    • Deployment Considerations
    • Interworking with 3GPP
    • Interworking with Release 8 3GPP
    • Interworking with Pre-Release 8 3GPP
  2. End-to-End Flow
    • Data Call Scenario
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