Comprehensive Guide to Understanding and Mapping Call Detail Record Sector Data

-A scientific approach

This page is intended to provide a basis for mapping CDR sector data in a manner that is consistent with known propagation models and accepted within the relevant scientific community.

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Background

Discover the Simplicity of Sector Mapping

A video presentation on the evolution of
CDR sector mapping.

Reference Material Downloads & Links

Topic Comments Download
TraX H-plane Overlay Sizing Algorithm
  1. 1. Identify 3 closest cell sites within 60° of the azimuth (30° each side)
  2. 2. Determine the density mean of the 3 towers (average distance in miles) Example: (1.2 mi + 3.3 mi + 4.5 mi) / 3 mi = 3.0 miles
  3. 3. Multiple the density mean by 0.97 to determine the outer boundary distance of the horizontal plane
    Example: 3 mi x 0.97 = 2.91 miles
Cherry Biometrics Recognized Defense Experts in this field who endorse the use of the Horizontal Plane for sector mapping. Website
Cherry Biometrics - Sample Report This is a sample report created by Cherry Biometrics in which they challenge the use of wedges shapes to represent sector mapping. Additionally, this report includes a map where Cherry Biometrics is utilizing the Horizontal Plane to represent the sector pattern and distance from tower of their estimated coverage. They do site the source of the propagation pattern they are relying on in this report. Sample Report
Cisco - Antenna Patterns and Their Meaning Much can be learned about how an antenna performs from its patterns. This paper describes many of the common antenna parameters that can be understood from the patterns. Download
Commscope - Understanding the RF Path The goal of this book is to explore the many dimensions of RF communications—past, present and future. It will also examine the technologies, solutions and practices that power the ongoing evolution of RF’s role in the world, including many innovative technologies and practices that CommScope has brought to the industry. Some of this material is theoretical and technical, but every effort has been made to keep it as approachable as possible. Consider this RF Fundamentals 101. Download
Drive Test Files This link is for a Google Earth KMZ file containing drive test data referred to in the video tutorial. Download
IEEE Transactions on Antennas and Propagation IEEE Transactions on Antennas and Propagation includes theoretical and experimental advances in antennas. The articles in this journal are peer reviewed in accordance with the requirements set forth in the IEEE PSPB Operations Manual (sections 8.2.1.C & 8.2.2.A). Website
LoRaWAN® Gateways: Radio Coexistence Issues and Solutions This white paper details the phenomena which could cause desensitization of LoRaWAN gateways because of the colocated transmitters, such as:
• Out-of-band blocking
• In-band blocking
• Third-order intermodulation
• Generation of out-of-band noise (spurious emissions)		 Download
ngmn - Project BASTA This whitepaper addresses the performance criteria of base station antennas, by making recommendations on standards for electrical and mechanical parameters, by providing guidance on measurement and calculation practices in performance validation and production, and by recommending methods for electronic data exchange. It also addresses recommendations on applying existing environmental and reliability standards to BSAs. Download
NIST - Guidelines on Mobile Device Forensics This guide attempts to bridge the gap by providing an indepth look into mobile devices and explaining technologies involved and their relationship to forensic procedures. Download
Rohde & Schwarz - Antenna Basics This white paper describes the basic functionality of antennas. Starting with Hertz's Antenna model followed by a short introduction to the fundamentals of wave propagation, the important general characteristics of an antenna and its associated parameters are explained. Download
SWGDE Recommendations for Cell Site analysis The purpose of this document is to provide recommendations on the use of Historic Cell Site Location Information (HCSLI) contained in Call Detail Records (CDR) when conducting Cell Site Analysis (CSA). Download
Vladan Jovanovic - CV Recognized Subject Matter Expert in this field - PHD in Electrical Engineering, 35+ years of experience Download
Vladan Jovanovic - Sample Report This is a report created by Vladan Jovanovic and his use of both the Horizontal and Vertical Planes (Propagation Patterns) to explain sector mapping. More specifically, this report shows a recognized expert in the relevant scientific field with a PhD in Electrical Engineering using the propagation patterns as they relate to distance. Sample Report

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