4G LTE Evolved Packet Core (EPC) Network

COURSE OVERVIEW

The Evolved Packet Core (EPC) network in the 4G mobile network architecture is one of the important elements in the Evolved Architecture for LTE service. The course provides a thorough examination of EPC architecture, interfaces, protocols, QoS, deployment, and dimensioning. The overall requirements of the LTE/SAE proposal are explored, and participants will be guided on how many MMES, SGWs, PGWs, HSFs, and PCRFs are needed for EPC.

TARGET AUDIENCE

Pro staff with expertise in LTE Evolved Packet Core LTE Evolved Packet Core Development/Planning/ Deployment/Operate/Monitor/Maintenance

Course Objectives

Present the architecture and interfaces of E-EUTRAN and the EPC.
Describe or characterize the performance features of the LTE/SAE system
Talk about the services provided by the ETSI Pledge of Support and their elements on traffic and signaling
Draw a diagram for the protocols used for control and user traffic
Outline the steps for establishing an EPS bearer followed by service data flow
Study alternatives for each the Voice on LTE(VoLTE, CSFB, OTT)
Perform the planning process in the EPC methodology.
Know the traffic concepts before delving into the traffic modeling for LTE
Calculate the signaling and user plane traffic cases
Develop a synthetic LTE core network with estimations on the EPC nodes

Course Prerequisites

Have to know how data is communicated and the 2G/3G core network.

COURSE OUTLINE

Introduction

3GPP releases

LTE requirements

LTE technology overview

LTE protocol stack – in comparison, the user plane and control plane

3GPP EPS reference architecture: eNodeB, MME, SGW, PGW, PCRF, HSS

EPS interfaces

Roaming architecture

Non-3GPP access

EPS Identities – GUTI, Serving TMSI, MSI, PTMSI, TAI, PDP address

Architecture of EPC in Its Evolutionary Phase

EPC for LTE access

LTE/3G/2G interworking with SGSN Release 8 prerelease and Release 8

Architectural optimization for 3G / HSPA / LTE traffic with high-speed data traffic.

Combined SGSN/MME

SGSN/MME and GGSN/SGN/PGW

EPC network topologies

LTE access dimensioning

Mobility and Bearer Management

MME direct pooling and whole pool

MME selection and addressing

SIGTRAN in EPC

SCTP

QoS parameters

EPS bearer architecture

Policy and charging control architecture (PLCCH)

EPS mobility management (EMM) is a state.

The states of ECM connection management

Traffic Cases: attaching, authentication/de-authentication, handover, TAU, PDP context establishment, transitions between idle and active modes

EPS Services

IP multimedia subsystem (IMS)

IMS protocols

Traffic cases

Voice over LTE (VoLTE)

Fallback to circuit-switched (CSFB).

Over The Top (OTT–rated) Services

Radio voice continuity (RRC)

Remote Configuration Service, SMS over SGs interface

Traffic Modeling

Processes and workflows associated with the EPC network planning

Network planning scope

Core planning tasks

Subscriber traffic profiles

Erlang-B traffic estimates

EPC Dimensioning

EPC dimensioning methodology

The key dimensioning parameters and the EPC principle of dimensioning

Network and traffic profile-specific hardware arrangement for an EPC network

User plane traffic dimensioning

Estimate the number of EPC network nodes (MME/SGW/PGW/Combined SGW-PGW/HSS/PCRF)