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LTE Introduction

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Saulo da Mata

on 3 December 2012

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Transcript of LTE Introduction

INTRODUCTION Saulo da Mata damata.saulo@gmail.com Mobile Generation Networks 1980 2000 1990 1G Analog-based technology Limited to voice service Reasonably good voice quality Limited spectral efficiency Advanced Mobile Phone System (AMPS) - USA

Nordic Mobile Telephone System (NMT) - Europe

Total Access Communications System (TACS) – Europe

Japanese Total Access Communications System (J-TACS) – Japan Examples: 2G Digital-based technology Voice and data service Better voice quality than the analogic technologies Two main systems:
cdmaOne (IS-95) Examples: Time Division Multiple Access (TDMA) General Packet Radio Servico (GPRS) – 140Kbps Enhanced Data Rates for Global Evolution (EDGE) – 384Kbps Code Division Multiple Access (CDMA) 3G Growth of mobile broadband and data consume Mobile broadband demand OFDMA FDD / TDD Very High Peak Data Rates Support of Variable Bandwidth Adaptative Modulation Coding Mobility 350 Km/h MIMO Obrigado! Saulo da Mata damata.saulo@gmail.com UMTS WCDMA HSPA HSDPA
16/64 QAM
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