REPORT: E911: Positioning Systems in Public Safety Assessment of Technologies and Markets for Wireless Emergency Services

Table of Contents

1.0 Introduction 8

• 1.1 Beginning 8
• 1.2 Need 8
• 1.3 Actions 8
• 1.4 Scope and Goals 11
• 1.5 Research Methodology 12
• 1.6 Target Audience 12

2.0 Standards 14

• 2.1 Organizations 14
  • 2.1.1 Location Interoperability Forum (LIF) 14
  • 2.1.2 Wireless Location Industry Association (WLIA) 15
  • 2.1.3 Cell Broadcast Forum 16
  • 2.1.4 Open GIS (Geographic Information Systems) Consortium 16
• 2.2 Standardization Process 17
  • 2.2.1 Protocols 18

3.0 Technologies 22

• 3.1 E911 PLS Network Requirements 22
  • 3.1.1 Two Approaches 22
  • 3.1.2 Requirements 23
• 3.2 Methods 24
  • 3.2.1 Network-Based 24
    • 3.2.1.1 AOA (Angle of Arrival) 25
    • 3.2.1.2 U-TDOA (Uplink Time Difference of Arrival) 26
    • 3.2.1.3 TOA (Time of Arrival) 28
    • 3.2.1.4 E-OTD (Enhanced Observed Time Difference) 28
    • 3.2.1.5 A-FLT (Advanced Forward Link Trilateration) 29
    • 3.2.1.6 E-CID (Enhanced Cell Identification) 29
  • 3.2.2 Local 30
    • 3.2.2.1 GPS (Global Position System) 30
    • 3.2.2.2 A-GPS (Assisted Global Position System) 30
    • 3.2.2.3 Multipath Fingerprinting 32
  • 3.2.3 Hybrid Location Systems 33
    • 3.2.3.1 Commercial Success: gpsOne Hybrid Overview 34
• 3.3 E911 AND INTERNET 35
• 3.4 Parameters 37
• 3.5 Comparison 39
• 3.6 E911 Call Processing 40

4.0 Issues 43

• 4.1 PSAP Activity 43
• 4.2 Economics and Technologies: Challengies 43

5.0 Europe E112 and Other 45

6.0 Market 48

• 6.1 General: PLS Drivers 48
  • 6.1.1 U.S. and Europe: Differences 48
• 6.2 E911 Market Forecast 50
  • 6.2.1 Model Assumptions 50
  • 6.2.2 Estimates 50
    • 6.2.2.1 E911 Services 50
    • 6.2.2.2 Equipment 53
  • 6.2.3 Sensitivity Analysis 53

7.0 Providers 55

8.0 Vendors 57

• Andrew 57
• CPS (Cambridge Position Systems) 60
• Cell-Loc 61
• CellPoint 62
• CT Motion 63
• Ericsson 63
• GlobalLocate 64
• Intrado 65
• Lucent 66
• OpenCell 67
• Polaris Wireless 68
• Qualcomm 69
• SigmaOne 70
• SignalSoft (OpenWave) 70
• SIRF 71
• SnapTrack (Acquired by Qualcomm) 72
• Syniverse 73
• TechnoCom 74
• Tendler Cellular 74
• TruePosition 76
• Uticom 77

9.0 Conclusions 79

• Glossary 80
• 911 Telephone Terminology 86
• References 89