Mobile Network Optimization: A Guide for 2G and 3G Mobile Network Optimization

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Dedication

This book is dedicated in loving memory of my late father, Ndabo Columba Roy Effiong Usuah, who taught me how to be an independent and determined person through his academic work as a lecturer and scholar.

Table of Contents

Dedication

CHAPTER 1

Introduction to Mobile Network Optimization

CHAPTER 2

GSM RF Parameters Interpretation

CHAPTER 3

WCDMA RF Parameters Interpretation

CHAPTER 4

WCDMA Radio Network Optimization

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CHAPTER 1

Introduction to Mobile Network Optimization

1.1 Mobile Network Optimization

In real world, before making a live network, we go through the first stage which is planning of the network. When a network become live, that is, when it begins to deliver services to the users, its performance needs to be checked and this results in optimization. Therefore, optimization is the tuning of an existing network to make the system work more effectively.

Radio Frequency (RF) Optimization is a process through which different parameters of radio base station (RBS) are changed in order to improve the coverage area and improve quality of signal. Many RF parameters like (RxLev, RxQual, FER, BER, SQI, TxPower, RSSI, SIR, BLER, RSCP, Ec/No etc...) are constantly monitored and necessary changes proposed in order to keep this parameters or KPIs (Key Performance Indicators) in agreed limits with the mobile operator.

GSM network consists of different cells and cell transmit signals to and receive signals from the mobile station. For a proper working of base station, many parameters are defined before functioning the base station such as the coverage area of a cell depends on different factors including the transmitting power of the base station, obstructing