This document outlines a proposed method for mobile telephone location tracking. It discusses existing positioning techniques like GPS, cell identity, time of arrival and discusses their advantages and disadvantages. It then proposes a new "location tracking curve method" which uses reference circles to determine the location of the mobile phone. The document contains 7 chapters that introduce mobile tracking and positioning techniques, discuss the need for tracking, compare existing techniques, describe the proposed new method and discuss future applications and conclusions.

1. i
TABLE OF CONTENTS
LIST OF FIGURES ii
CHAPTER 1: INTRODUCTION 1
1.1 MOBILE TRACKING 1
1.2 MOBILE POSTIONING 1
1.3 INTRODUCTION TO MOBILE TECHNOLOGY 2
CHAPTER 2: NEED FOR MOBILE TRACKING 3
CHAPTER 3: POSTIONING TECHNIQUES 4
3.1 MOBILE (HADSET)BASED POSTIONING 4
3.1.1 GLOBAL POSTIONING SYSEM 4
3.1.2 CELL IDENTITY 5
3.2 DIRECTION BASED POSTIONING 6
3.2.1 ANGEL OF ARRIVAL METHOD (AOA) 6
3.3 DISTANCE BASED POSITIONING 7
3.3.1 TIME OF ARRIVAL METHOD (TOA) 7
3.3.2 TIME DIFFERENCE OF ARRIVAL
(TDOA)
8
CHAPTER 4: LOCATION TRACKING CURVE METHOD 10
4.1 PROPOSAL 10
4.2 DESCRIPTION 11
4.3 DETERMINATION OF LOCATION TRACKING
CURVE
12
4.4 REFRENCE CIRCLE SELECTION 13
CHAPTER 5: BLOCKING OF CELL PHONE TRACKING 16
CHAPTER 6: ADVANTAGES & DISADVANTAGES OF MOBILE
TRACKING
17
CHAPTER 7: FUTURE WORK AND CONCLUSION 19
REFFERENCE 21

2. ii
LIST OF FIGURES
FIG. 1.1 CONFIGURATION OF A TYPICAL MOBILE
TELECOMMUNICATION NETWORK.
1
FIG. 3.1 TRILATERATION 4
FIG. 3.2 GLOBAL POSTIONING SYSTEM (GPS) 5
FIG 3.3 CELL IDENTITY 5
FIG. 3.4 ANGLE OF ARRIVAL (AOA) 6
FIG. 3.5 ILLUSTRATES A TYPICAL TOA METHOD FOR
LOCATING A MT
8
FIG. 3.6 ILLUSTRATES THE TDOA METHOD OF LOCATING A
MOBILE TELEPHONE.
9
FIG 4.1 FLOWCHART SHOWING THE STEPS INVOLVED IN
LOCATING A MOBILE TELEPHONE
10
FIG. 4.2 ILLUSTRATES A PROPOSED METHODFOR MOBILE
TELEPHONE LOCATION.
11
FIG 4.3 ILLUSTRATES THE DETERMINATION OF LOCATION
TRACKING CURVE.
12
FIG 4.4 ILLUSTRATES THE POSITIONING OF MOBILE BY
THE PROPOSED METHOD.
15