3RD GENERATION MOBILE TELECOMMUNICATION SYSTEM

Really Really Fast Internet is here

2G TO 3G 3G Introduction

2G LIMITATIONS

3G REQUIREMENTS

EVOLUTION OF 2G NETWORK

EVOLUTION OF 3G NETWORK

NETWORK ARCHITECTURE Architecture Does Matter

GPRS NETWORK ARCHITECTURE

UMTS NETWORK ARCHITECTURE

3G BASICS Radio Principles

MULTIPLE ACCESS TECHNIQUES

ANALOGY

ANALOGY

ANALOGY

CDMA CHARACTERISTICS

CDMA MODES

CDMA FREQUENCY BANDS

CDMA FREQUENCY BANDS

HIGH SPEED DOWNLINK PACKET ACCESS (HSDPA)

HSDPA

HIGH SPEED UPLINK PACKET ACCESS (HSUPA)

HSPA+

SPREAD SPECTRUM MODULATION Radio Principles

SPREAD SPECTRUM MODULATION

SPREAD SPECTRUM MODULATION

SPREAD SPECTRUM MODULATION

SPREAD SPECTRUM MODULATION

SPREAD SPECTRUM MODULATION

SPREAD SPECTRUM MODULATION

SPREAD SPECTRUM MODULATION

SPREAD SPECTRUM MODULATION

CHANNELIZATION CODES Radio Principles

CHANNELIZATION CODES

CHANNELIZATION CODES

CHANNELIZATION CODES

SOFT HANDOVERS Handover Principles

SOFT HANDOVER

SOFT HANDOVER

SOFT HANDOVER

SOFT HANDOVER

RAKE RECEIVERS Improved Reception

RAKE RECEIVERS

RAKE RECEIVERS

RAKE RECEIVERS

RAKE RECEIVERS

SERVICE CLASSES Where Quality Of Service Is Important

SERVICE CLASSES

Different services require different quality of service

QoS can be defined based on;

Delay

Jitter

Packet Loss

Throughput

SERVICE CLASSES Conversational services

Low tolerance for delay, jitter and errors Generally symmetrical Typically voice, but also video conferencing

Interactive Services For request/response type of applications Low error, but no tough requirements on delay or jitter

Streaming Services Typically for one-way services, e.g. streaming audio and video low error, but since user application buffers data received, neither

jitter nor delay requirements are stringent

Background Services E.g. For email and SMS services that can run in the background and

dont require direct user involvement Low error but no particular requirements on delay

SERVICE CLASSES

SERVICE CLASSES