Geolocalisation in Cellular Telephone Networks
author:
Bruce Denby,
Université Pierre et Marie Curie
Description
Cellular telephone operators are currently required to provide caller localisation information for use by emergency services. Localisation fields appended to Call Detail Records can now also be exploited for commercial purposes, such as: new network services; subscription fraud detection; customer behaviour monitoring; health care monitoring; law enforcement and forensics; and national and international security. The talk reviews cellphone localisation technology via: 1. A survey of location based services and applications; 2. An overview of localisation techniques with an example; 3. A GSM trace-mobile demonstration of types of information available
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| Slides | |
| 0:00 | Geolocalisation in Cellular Telephone Networks |
| 0:31 | Plan of Presentation |
| 1:54 | What is Cellphone Localisation? |
| 2:59 | Why Localise Cellphones? Emergency Services |
| 5:05 | Why Localise Cellphones? Location Based Services |
| 6:27 | Why Localise Cellphones? Health Care and Family Security |
| 7:44 | Why Localise Cellphones? Customer Behaviour Monitoring |
| 8:35 | Why Localise Cellphones? Law Enforcement and Forensics |
| 10:12 | Why Localise Cellphones? National and International Security |
| 11:55 | Plan of Presentation |
| 12:01 | How do Cellphones Work, Anyway? |
| 15:47 | Call Detail Records |
| 16:42 | Modern CDR Databases |
| 17:55 | Plan of Presentation |
| 18:06 | Cellphone Localisation Methods |
| 19:02 | Can’t We Just Use GPS? |
| 19:55 | Cellphone GPS Reception |
| 20:54 | Radio Interface Techniques |
| 21:45 | Radio Interface Techniques Cell ID |
| 22:42 | Radio Interface Techniques Cell ID+TA |
| 23:44 | Radio Interface Techniques “Triangulation” |
| 25:01 | Radio Interface Techniques Angle of Arrival AOA |
| 25:43 | Multipath and Mask Effects |
| 26:24 | Plan of Presentation |
| 26:28 | Database Correlation Technique |
| 29:05 | Database Correlation Technique Example Measurement Report |
| 29:42 | Database Correlation Technique Localising w/Radio Fingerprints |
| 30:32 | Database Correlation Technique Fingerprinting Challenges I |
| 32:26 | Database Correlation Technique Fingerprinting Challenges II |
| 33:42 | Database Correlation Technique Experiment |
| 34:58 | Database Correlation Technique Experiment – Trace Routes |
| 35:15 | Database Correlation Technique Experiment – Analysis Techniques |
| 36:09 | Database Correlation Technique Experiment – Preliminary Results |
| 37:59 | Database Correlation Technique Experiment – Trace Routes |
| 38:17 | Database Correlation Technique Experiment – Preliminary Results |
| 38:21 | Database Correlation Technique Indoor Fingerprint Localisation |
| 40:35 | Database Correlation Technique WiFi Indoor Fingerprint Localisation |
| 42:26 | Database Correlation Technique Hybrid Method: Assisted GPS |
| 43:05 | Plan of Presentation |
| 43:10 | Standard LCS CDR Entry |
| 44:06 | Subscriber and Equipment Tracing |
| 45:27 | Plan of Presentation |
| 45:30 | Demonstration: GSM Trace Mobile |
| 55:12 | Acknowledgements |
| 55:19 | Comments, questions? |
| 59:44 | - Questions |
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