Thursday, June 07, 2012

LTE Overview & Deployment Consideration- Qualcomm

Contents:-


1. Introduction

  • Overview of LTE
  • Architecture
  • Downlink
  • Uplink

2. LTE Deployment Considerations

  • Spectrum and Overlay
  • Emissions and Load Balancing
  • Coverage
  • Link Budget
  • Voice


LTE key fetures:-
  • Scalable transmission bandwidth(up to 20 MHz)
  • Improved Spectrum efficiency - DL spectrum efficiency should be 2-4 times Release 6 HSDPA
  • UL spectrum efficiency should be 2-3 times Release 6 HSUPA
  • Coverage - Good performance up to 5 km
  • Mobility - Maintained mobility support up to 350 km/h (possibly up to 500 km/h)
  • Advanced transmission schemes, multiple-antenna technologies
  • Inter-working with existing 3G and non-3GPP systems
  • Waveform - WaveformOFDM in Downlink and SC-FDM in Uplink
  • Duplexingmode - FDD and TDD
  • Modulation orders for data channels - QPSK, 16-QAM, 64-QAM
  • MIMO support - SU-MIMO and MU-MIMO

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