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WCDMA System Engineering and Network Optimization

Course Duration

5-day instructor-led training


Course Objectives

The goal of WCDMA Radio Network Optimization course is to present details on a number of optimization problems, techniques and solutions specific to WCDMA radio-access networks. The participants will learn about radio network planning, deployment and optimization. Solutions that include micro-cellular and in-building systems as well as pilot, handover, repeater, antenna and sub-sectorization techniques will be presented in detail. Furthermore, the participants will learn about service-specific performance and inter-system issues.


Course Overview

The WCDMA Radio Network Optimization course is a 5-day course that will present details on the following topics.

  • Relevant wireless channel characteristics;
  • Radio network analysis, planning and deployment;
  • Optimization tools;
  • Optimization of pilot, handover, antenna as well as sectorization parameters;
  • Micro-cellular and in-building systems;
  • Inter-system issues;
  • Optimization of voice and packet-switched services;
  • Differences between UMTS, HSDPA and HUSPA network optimization problems and techniques.


Key Benefits

The participants will gain a detailed knowledge of a wide range of optimization techniques and solutions specific to WCDMA radio-access networks. The participants will be able to efficiently approach any optimization problem. They will be able to consider and employ a range of possible optimization solutions that corresponds to a particular problem.


Pre-Requisites for Participants

Detailed knowledge of the WCDMA technology is needed. Furthermore, knowledge of the UMTS network protocols, architecture, and procedures is required. A good knowledge of GSM networks will be instrumental.


Who Should Attend?

This course is intended for:

  • Radio network planning managers;
  • Radio network planning and optimization engineers;


Course Outline

Day 1

3GPP Standardization and UMTS Overview
  • Wireless standards landscape
  • What is 3GPP?
  • Timeline
  • Basic features - radio access, network elements and spectrum

WCDMA for UMTS-FDD
  • Multiple access, channelisation and scrambling codes
  • Wireless channel characteristics
  • Multipath diversity
  • Temporal diversity
  • Radio resource management
  • Power control
  • Handovers and macro-diversity
  • Admission and load control
  • Packet scheduling
  • Rate matching
  • Cell-breathing

Day 2

UMTS Radio Access Procedures
  • Cell search procedure
  • Paging procedure
  • RACH procedure
  • Open loop power control
  • UMTS to GSM handover
  • Compressed mode

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

Day 3

Radio Network Planning and Dimensioning
  • Cell loading and interference margin
  • Margins and gains
  • Typical mobile terminal and base station parameters
  • Link budget case studies
  • Coverage and capacity
  • Meeting data-rate density requirements
  • Base-station density vs. number of carriers and capacity (dimensioning)
  • Scrambling code planning
  • Backhaul dimensioning
  • RNC dimensioning
  • Case studies and problem solving

Introduction to HSDPA and HSUPA
  • How HSDPA and HSUPA improve system performance
  • Introduction criteria
  • Resource allocation between UMTS and HSDPA/HSUPA
  • Carrier allocation and migration

Day 4

Radio System Performance Enhancements
  • Impact of P-CPICH
  • Adding new carrier
  • Tower top LNAs and remote radio heads
  • Adaptive multi rate speech coding
  • GSM and UMTS
  • Lowering inter-carrier interference
  • Repeaters
  • Sectorization techniques
  • Antenna tilting
  • Introduction of new subcarriers
  • Multiple antenna techniques
  • Multiuser detection
  • Equalization

Handover Optimization
  • Handover procedure
  • Hysteresis algorithm parameters
  • Parameter recommendations
  • Handover trade-offs
  • Optimization for coverage vs. capacity
  • Inter-frequency handover considerations

Day 5

Inter System Planning and Optimization
  • GSM to 3G
  • 3G to 3G
  • Boundary planning
  • Typical inter-system scenarios
  • Inter-system handover procedure
  • Inter-system handover due to capacity reasons
  • Compressed mode issues

Micro Cell and Indoor Solutions
  • Micro-cell characteristics
  • Micro- and macro-cell hierarchy
  • Near-far effect
  • Indoor solutions and effects
  • Micro- and macro-cell interference
  • Distributed antenna system
  • Leaky cable
  • Optical cable

Network Management and Optimization
  • Management model and systems
  • Optimization loops
  • Quality cycle
  • Measurements
  • Key performance indicators
  • Field measurements
  • QoS and service performance
  • Auto-tuning



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