freescale: LTE OVERVIEW(white paper)

gming2008_4

Contents
1 Introduction 1
1.1 LTE Design Goals 1
2 LTE Basic Concepts 2
2.1 Single Carrier Modulation
and Channel Equalization 2
2.2 OFDM 3
2.2.1 Disadvantages of OFDM 5
2.3 OFDMA 7
2.3.1 Comparison of OFDMA with Packet-
Oriented Protocols 7
2.3.2 OFDMA and the LTE Generic Frame
Structure 8
2.4 MIMO and MRC 10
2.5 SC-FDMA 13
3 LTE Physical Layer 14
3.1 Downlink 15
3.1.1 Modulation Parameters 15
3.1.2 Downlink Multiplexing 16
3.1.3 Physical Channels 16
3.1.4 Physical Signals 17
3.1.5 Transport Channels 18
3.1.6 Mapping Downlink Physical
Channels to Transport Channels 19
3.1.7 Downlink Channel Coding 19
3.2 Uplink 20
3.2.1 Modulation Parameters 20
3.2.2 Multiplexing 20
3.2.3 Uplink Physical Channels 20
3.2.4 Uplink Physical Signals 21
3.2.5 Uplink Transport Channels 21
3.2.6 Mapping Uplink Physical
Channels to Transport Channels 22
3.2.7 Coding 22
3.3 MB-SFN 22
4 Conclusions 22
5 References 23
6 Acronyms and Abbreviations 24

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flyfreely23

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flyfreely23

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gaobin0628

THANKS

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kimble

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