PS Domain Evolution Overview

Contents:

The PS Domain Evolution Overview course describes the evolution of the 3GPP packet switched (PS) domain from the starting point of GPRS. The IP protocols and basic PS procedures that are common for GPRS and UMTS are described. The course accounts for UTRAN and its WCDMA-based radio interface. It also describes the all-IP architecture in IMS and later developments such as High Speed Packet Access and LTE. All topics are presented in a comprehensive – yet easily understandable – way. Essential subsystems, nodes and protocols are described. Basic traffic cases are used to demonstrate the function and architecture of the different systems.

Note:This course is a part of the 5 days GSM/UMTS/EPS System Overview course.

Pre-requisites:

Technical education and/or at least one year of technical telecom experience is recommended.

Course contents

IP Introduction

• IP networking principles

• The TCP/IP protocol stack

GPRS System Overview

• Nodes and architecture of GPRS

• SGSN and GGSN

PDP Context Activation and Data Transfer

• GPRS (UMTS) Attach

• PDP Context Activation

• Tunnelling of user data

The GPRS Radio Interface

• Radio resource sharing GSM/GPRS

• GPRS radio interface protocols: SNDCP, LLC, RLC/MAC

Mobility Scenarios

• PS Mobility principles

• Cell changes

• Network Assisted Cell Change

• PS Handover

EDGE – Evolution towards higher bitrates

• 8QPSK modulation and new coding schemes

• Alignment of GPRS to UMTS

UMTS System Overview

• Nodes and architecture of UMTS

• UTRAN introduction

W-CDMA

• Spreading and UMTS codes

Bearers and Quality of Service

• The Bearer concept

• General QoS parameters and PCC (Policy and Charging Control)

UTRAN Protocols and Channels

• Protocols: RRC, RLC, MAC, PHY

• Logical, Transport and Physical channels

Selected Traffic Cases

• Call setup (circuit switched)

• Web browsing (packet switched)

• Interoperability UMTS /GSM

IMS – the IP Multimedia Subsystem

• IMS nodes and architecture

• The SIP protocol

HSPA – High Speed Packet Access

• UTRAN evolution for higher bitrates

EPS /LTE/4G

• E-UTRAN (LTE) and the Evolved Packet Core (EPC/SAE)

• Nodes and architecture of EPS

• OFDM Basics

• Interworking scenarios between EPS and UMTS/GSM

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