WiMAX Network planning and Optimisation

Duration

Instructor led training , conducted on regular and on Fast track program.Contact us.

Overview

  • Differences between Fixed and Mobile WiMAX technology will be studied. The related layer 1 and 2 protocol functions are dealt with in detail.
  • Relevant radio propagation and physical layer characteristics, in different deployment scenarios will be presented.
  • WiMAX deployment and roll out strategies will be studied
  • Advanced techniques and their performance will be discussed (beam forming, space-time coding, MIMO, different handover schemes).

What you will gain

  • Understand up to date¬† end to end technology of both mobile and fixed WiMAX technology.
  • Features of the technology those are relevant for system performance, planning and deployment.
  • The participants will learn about performance enhancement and optimization techniques.
  • They will be able to address real-world problems of the WiMAX deployment and future enhancements.

Pre requisites

A strong knowledge of wireless communication systems is required.

Who should attend?

  • Technical managers who want to learn and understand the benefits and potential issues with Fixed and Mobile WiMAX.
  • Development and radio network engineers who require a good knowledge of the WiMAX technology.

Course outline

1. Introduction

  • Wireless Standards Overview
  • 802.16 Standard Timeline
  • 802.16 Standard Characteristics
  • WiMAX Forum
  • WiMAX Profiles
  • WiMAX and ITU

2. Radio Propagation Overview

  • Wireless Channel
  • Path Loss
  • Shadowing
  • Multipath and Frequency Selectivity
  • Temporal Variations and Doppler Spread
  • Line-of-Sight (LOS) vs. Non-Line-of-Sight (NLOS)
  • Angle of Arrival and Departure
  • Antenna Parameters
  • Power Levels in dBm and Watts
  • Sources of Noise, Bandwidth and Frequency

3. WiMax Principles

  • OFDM vs. Single Carrier
  • Frequency and Temporal Diversity
  • TDD vs. FDD
  • RF Front-End
  • Network Topologies

4. WiMax Physical Layer

  • Fixed WiMAX
  • OFDM Parameters
  • TDD Frame Content
  • Contention Access
  • Channel Coding and Modulation
  • Measurements
  • Link Adaptation
  • Mobile WiMAX
  • Scalable OFDMA
  • Permutations
  • Bins, Sub channels, Tiles, Slots
  • HARQ
  • Frequency Reuse
  • Handover
  • Multicast and Broadcast Services
  • MAC Layer Overview

5. HSDPA and HSUPA

  • HSDPA features
  • Transmission time interval
  • Channelisation codes
  • Resource sharing
  • Modulation
  • Turbo channel coding and soft bits
  • Hybrid ARQ
  • Channel quality indicator
  • Multi-user scheduling
  • Mobile terminal categories
  • MAC-hs
  • Power allocation

6. WiMAX Access Procedures

  • QoS Enforcement
  • Network Entry
  • Ranging
  • Registration
  • Bandwidth Requests
  • DL-MAP and UL-MAP Message
  • Mobility Procedure

7. WiMAX Radio Network Planning

  • Link Budget Analysis
  • Equipment Specification
  • Antenna Patterns
  • Required SNR
  • Multiple Antennas Gains
  • Permutations Effects
  • Coding Schemes Gains
  • Coverage
  • Coverage for preamble and DL/UP-MAP
  • Capacity
  • Path Loss Models
  • Shadowing
  • Frequency Reuse and Planning
  • Sectorization
  • Antenna Pointing and Orientation

8.  WiMAX Radio Planning, contd.

  • Effect of Terrain and Clutter
  • Optimizing for Different QoS Classes
  • LOS vs. NLOS
  • Fresnel Zone for LOS
  • Case Studies for Pico-, Micro- and Macro-Cells
  • Peak and Average Data Rate Analysis (User and Sector Throughputs)
  • Uplink and Downlink Balancing
  • Delay Spread and Guard Time
  • System Simulations Approach
  • Overview of Commercial Tools

9. WiMAX Enhancements and Optimization

  • Space-Time Coding (STC)
  • Beam forming
  • MIMO
  • Uplink Sounding
  • Collaborative MIMO
  • Repeaters (FDD vs. TDD issues)
  • Effects of the Improvements on System Performance and Margins (Throughput, Capacity and Coverage)

10. WiMAX Deployment

  • When to Use Fixed or Mobile WiMAX
  • Green-Field Deployment
  • 2G or 3G Upgrade
  • Selecting and Optimizing Type of Handover
  • Optimizing for VoIP
  • Optimizing for Different QoS Classes
  • Backhaul Overview
  • Backhaul Dimensioning

11. Miscellaneous

  • Miscellaneous Practical Topics
  • Installation and Maintenance Testing
  • Error Vector Magnitude
  • Adjacent Channel Power Ratio
  • Mobile WiMAX Release 1 Profiles