TELECOM

Detailed LTE

Nº 1425
DATE: 21-22, 25-27.11.12
PRICE NIS: 5080 + VAT
DURATION: 5 Days

Course Overview:

The course starts with a presentation of the technological building blocks of LTE which are OFDM and MIMO. It continues with LTE specific technological concepts such as transmission and detection of SC-FDMA, Zadoff-Chu sequences and LTE link adaptation.
The second part of the course dives into specifics of the LTE standard. We will discuss the LTE system architecture and the main differences from existing technologies. An in-depth discussion of the various downlink & uplink channels and signals will be presented, followed by explanation of main mechanisms such as network access and power control.

Who should attend?

The seminar is built for Technical, Marketing and Business Development people of the Telecom Service Providers as well as Manufacturers of LTE equipment.

Prerequisities:

Basic knowledge of telecommunications is expected from the participants.

Course Outline:

Day 1 – Basic Concepts

1. LTE - Business Overview

LTE as an evolution of current 3GPP standards
LTE projections
Main players (vendors and operators) and their vision of LTE
LTE vs. WiMAX

2. MIMO Concepts

The benchmark SISO case and performance in a Rayleigh channel
Diversity methods: MRC, Alamouti’s STC and the concepts of diversity order and array gain.
Eigen Beamforming and MRT
Spatial multiplexing: The optimal ML decoder and suboptimal decoders
Closed loop MIMO and SDMA (SVD based
solutions and other)

3. OFDM Concepts

Basic channel modeling: delay spread, Doppler PSD, coherence time and coherence bandwidth
OFDM principles: the transmitted signal,implementation with FFT, cyclic prefix, channel estimation, PAPR and how to choose the FFT length
OFDMA as a generalization of OFDM
The natural fusion of OFDM and MIMO: pilots patterns, method to convey channel knowledge to the transmitter

Day 2 – Concepts Specific to LTE

4. SC-FDMA

SC-FDMA a low PAPR variant of OFDM
Localized SC-FDMA
Distributed SC-FDMA
The mathematical model for SC-FDMA and the decoding problem

5. Decoding SC-FDMA

Sub-optimality of simple frequency domain equalization
Prominent approaches for near optimal decoding
Decoding localized SC-FDMA
Decoding distributed SC-FDMA
SISO vs. MIMO

6. Link adaptation for SC-FDMA

Link adaptation overview
SNR estimation as a building block of link adaptation
SNR estimation in linearly decoded SC-FDMA
SNR estimation in non linear SC-FDMA decoders

7. CAZAC Sequences

Properties of CAZAC sequences
Zadoff-Chu sequences as an (important) example of CAZAC
Applicability of Zadoff-Chu sequences to LTE

8. DFT Implementation in LTE

DFT for sizes of the type 2p3q5r
Prime number DFT

Day 3 – LTE Overview, Architecture, Interfaces & Stacks

9. LTE - Overview

Discuss where LTE originated from
Upcoming 3GPP revisions 9 & 10
System performance requirements (data rate, spectral efficiency, latency)

10. Network Architecture

System Architecture Evolution (SAE)
Overview of Network Architecture
The difference from 2G & 3G cellular network architectures
The split between the Access Network and the Core Network

11. Network Interfaces: S1 & X2

S1 & X2 protocol structures
Functions of S1 & X2
Advanced capabilities

12. Control Plane Protocol Stacks

Roles of control plane stacks
RRC
RRC States
Paging

13. User Plane Protocol Stacks

Roles of user plane protocol stacks
Formats of the PDCP/RLC/MAC protocols
Data Flow

Day 4 – LTE Frame Structure & PHY

14. Frame Structure

TDD & FDD
Radio frame & Subframes
Special Subframes
Slot Structure
Resource Blocks

15. PHY Downlink Channels & Signals

PDSCH, PDCCH, PMCH, PBCH
Downlink Reference Signals

16. PHY Uplink Channels & Signals

PUSCH, PUCCH
Sounding Reference Signal (SRS), PRACH
Uplink Reference Signals

17. Channel Coding

Code Block Segmentation
Channel Coding (Turbo Encoder, etc.)
Hybrid ARQ

18. Downlink & Uplink MIMO Techniques

Space Time Coding
Spatial Multiplexing
Cyclic Delay Diversity (including long delay CDD)
Codebook Based Precoding

Day 5 – Access Procedures, Power Control, Link
Adaptation & Conclusions

19. Synchronization (Cell Search)

Explanation of the Cell Search mechanism
Support of flexible bandwidth

20. PRACH and its Decoding

Explanation of the Random Access procedure
Supported formats and parameters
System Aspects
How to decode the PRACH

21. Uplink Power Control

Uplink power control mechanism for the PUSCH, PUCCH and SRS
Open & Closed loop power control
System Aspects

22. Link Adaptation

Channel Dependent Scheduling
Obtaining Channel Knowledge

23. Channel Quality Indications

CQI/PMI/RI indications
Indication via PUSCH or PUCCH

24. Comparison with WiMAX

SC-FDMA vs. OFDMA in the uplink
Supported MIMO Schemes
Flexibility in BW

25. Future Trends – Advanced LTE

26. Summary

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