Atoll GSM Training Slides

Atoll 2.5

1

ATOLL TRAININGAtoll 2.5

Q4 2006 – Q1 2007

Atoll2.5_GSM_UMTS_Training v0.5

Atoll 2.5

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PART 1: GENERAL FEATURES & GSM

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TRAINING PROGRAM

1. General Introduction

2. Working Environment

3. Multi User Environment

4. Setting Up a Project

5. Modeling a Network (Part 1: Sites, Transmitters)

6. Basic Prediction Studies

7. Outputs

8. Acquiring Sites

9. Traffic Data

10. Modeling a Network (Part 2: TRX)

11. GSM Network Performance

12. Propagation Model Tuning

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1. GENERAL INTRODUCTION

� Training Overview

� Atoll General Concepts

� Manuals

� Help & Support

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� Theoretical Parts� GSM/GPRS/EGPRS Features� UMTS / HSDPA Features

� Hands-On Exercises

� Focus On Practical Training

� Training Class Schedule� 9.00 am to 5.00 pm� 15 minute breaks (morning & afternoon)� 1 hour break at lunch time� Please: no emails, nor phone calls during the class

TRAINING OVERVIEW1.

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ATOLL OVERVIEW

� Multi-technology Radio Planning & Optimization Platform� GSM/GPRS/EDGE� UMTS/HSDPA� CDMA 2000 1xRTT 1xEV-DO� WiMAX� TD-SCDMA� Microwave Links

� Open, scalable and flexible architecture

� Advanced Network Design Features

� Largest third-party product offering available on the market (ACP, AFP, Dynamic Simulators, Propagation Models, etc.)

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MANUALS

� Basic Documentation� User Manual� Technical Reference Guide

� Advanced Documentation� Standard Propagation Calibration Guide� Developer Reference Guide� Administrator Manual

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HELP & SUPPORT

� Online Help� Help Topics

– Accessible via the Help menu– ~1000 topics in a

structured organisation

� What’s This– Available in any dialog– Description of fields

� First Level of Support� [email protected] � 1-888 GO-ATOLL (1-888-462-8655)� Hotline opening hours: 8.00 am - 8.00 pm EST, Monday - Friday

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TRAINING PROGRAM







7. Outputs

8. Acquiring Sites

9. Traffic Data




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� National Server Configuration

� Atoll Platform at Cingular� Atoll Multi user environment

� Atoll User Interface� User Interface� Other Atoll Windows

� RF Design Workflow Using Atoll

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NATIONAL SERVER CONFIGURATION

� Citrix Thin Client Deployment

� Central National Server Farm� Located in Redmond, WA� Contains:

– Oracle Database Server– File Server (or SAN)– Application Servers

� Multi-User Environment

� Pool of Shared Atoll Licenses

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Centralized Deployment of Atoll

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ATOLL PLATFORM AT CINGULAR

� Multi-User Environment� .atl project files are created from an central Atoll Oracle Database� .atl projects files are saved on User Home Directories (on file server)

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ATOLL USER INTERFACE

Point Analysis

Map

Table

Explorer

Event Viewer

Panoramic

Workspace

Toolbar

Menu Bar

Status bar

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OTHER ATOLL WINDOWS

� Panoramic� Legend

� Point Analysis

� Measurement (CW or Test Mobile Data)

� Event Viewer

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WORKFLOW2.

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Setting up a Project(Create / Open ATL-Project, Geo Data, …)

Modeling the Network (Part 1: Sites, Transmitters)(Add Sites, Modify Transmitter, …)

Radio Propagation(Pathloss Calculation, Basic Prediction Studies: Coverage by signal level,

Best Server Plot)

Modeling the Network (Part 2: TRX)(Frequencies, HSN, BSIC, Cell Type, Neighbors, …)

Traffic Data(Define Traffic Maps, Traffic Analysis, …)

Advanced Studies Outputs(Reports, Plots)

Section 5

Section 6

Section 4

Section 9

Section 10

Section 11 Section 7

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6

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TRAINING PROGRAM







7. Outputs

8. Acquiring Sites

9. Traffic Data




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3. MULTI USER ENVIRONMENT

� Shared & Private Data

� Pathloss Matrix Storage

� Atoll Oracle Database: Exchanges

� Atoll Oracle Database: Management

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ATOLL NAMING CONVENTION

� Pathloss� Matrix - defined for each sector - that contains pathloss information for

each pixel up to the calculation radius

� Prediction Study� Coverage plot containing user-specified information (e.g. best server plot,

signal strength plot, handover study, Ec/Io plot, etc.)

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SHARED & PRIVATE DATA

� Shared Data (located on server farm - shared drivers)� Oracle Database

– Network description data (sites, cells, antennas, ...)

� Configuration Files

� Path Loss Matrices

� Private Data (located on server farm – user folder on H: drive)� Atoll Project File [*.atl]

– Created from the Oracle database– Radio Data– Coverage predictions

� Working Environment Data– Private Configuration

� Private Path Loss Matrices

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� Shared Pathloss Matrices� Stored in a shared folder – on the server farm (shared driver)� Batch/Administrator calculation (transparent to the user)

– Performed incrementally on a daily basis (overnight)� One public pathloss matrix folder per market per technology - for all users

– E.g. one folder for North Texas GSM– one folder for North Texas TDMA– one folder for North Texas UMTS

� Accessible as read-only mode (users cannot write in the shared pathloss matrix folder)

� Private Pathloss matrices� Stored in a private folder – on the server farm (user folder on H: drive)� Private pathloss matrices calculated only for sites with invalid or missing

shared pathloss matrices

PATHLOSS MATRIX STORAGE3.

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ATOLL ORACLE DATABASE: EXCHANGES (1)

� .atl Project Creation From An Existing Database� Open From Database

– Possibility to recover only sites of a list� Memorization Of The Link

� No real time update between the .atl project and the Oracle database

� Exchanges between the Oracle database and the .atl project file� Archive:

Atoll Atoll Oracle Database� Refresh:

Atoll Oracle Database Atoll

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� The Archive Command� To use when you are satisfied with your modifications� Update the Oracle database with your changes� Archive permissions are set at the user level & field level

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� The Refresh Command� Refresh the data of your Atoll project file with the latest Oracle database info

Automatic Database Reload

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ATOLL ORACLE DATABASE: MANAGEMENT

� User Privileges/Permissions� Defined in Oracle database� Taken into account by Atoll

� Conflict Management Between Users� Automatic Detection Of Conflicts

– Added or modified records– Deleted records– Permissions

� Alternative Solutions Proposed By Atoll

� Audit Tool To Check The Consistency Of The Tables� Integrity Checking To Find All The Objects With Problems� Undefined Record Checking

– Sites without transmitter– Transmitter with no subcell (GSM)– …

� Duplicate Record Checking

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TRAINING PROGRAM







7. Outputs

8. Acquiring Sites

9. Traffic Data




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4. SETTING UP A PROJECT

� Workflow� Creating a project from a database� User Configuration� Open, save and close a project� Review project settings� Explorer Window� Table Window� Filtering / Sorting / Grouping� Managing Geo Data Layers� Geo Data Properties� Zones in Atoll

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WORKFLOW4.

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Load a project in a single-click(site database, geo data & configuration file)

Load a project (manual steps)(open from Oracle Database, Load geo data & configuration file)

Save the Project File

Review the Project Settings

Setup / Import the Folder Structure for the Explorer Window

Setup Geo Data

Define Zones(computation zone, focus zone, filtering zone)

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Launch Atoll (via Citrix)

Click on the icon

Select the desired market/technology� Site base is automatically loaded from the Oracle database� Geo data are automatically loaded

LOAD A PROJECT (SINGLE CLICK OPTION)4.

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� This is an alternative option to the previous slide

LOAD A PROJECT (MANUAL OPTION)4.

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1- Open from Oracle database2- Load User Configuration (Geo Data, Folder Conf., …)

� manually

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� Save Project in private folder (Home Directory)

� Set Private Pathloss Matrix Storage Location To External Folder (and not “embedded”)

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SAVE PROJECT

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� Set Transmitter Symbol

Open Transmitter Properties

Click Symbol Type On "Display" Tab (select Automatic)

Select Symbol "Beamwidth-related Transmitter Symbol"

BEAMWIDTH RELATED TRANSMITTER SYMBOL4.

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OPEN, SAVE AND CLOSE A PROJECT

� Project Is Saved As .atl Project File� Recommendations:

* Save your Atoll Project File every day under a new name(e.g. Atlanta_GSM_20070104)* Delete older files (e.g. older than 2 weeks) on regular basis

� Possibility To Re-Open An Existing Project (*.atl project file)

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REVIEW PROJECT SETTINGS4.

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Access to coordinates catalogues

Display system definition

Projection system definition

Length, height and offset unit definition

Degree formats

� Project System must NOT be changed

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EXPLORER WINDOW

� 3 Tabs� Data

– Radio Data / Coverage / Measurements� Geo

– Raster / Vector / Traffic maps� Modules

– Propagation Models

� Made Of Folders And Records� Selection � Visibility� Order

� Use Of Context Menus� Access To Properties Dialogs� Access To Tables� Additional Functions (e.G. Centre Map Feature)

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IMPORT GEO DATA

Terrain Height Import4. S

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� Import of configuration file automatically loads all relevant geo data information

� This section describes the import process for additional and/or updated geo data that may be used

Clutter Class Import Scan Map / Image Import

Vector Import

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MANAGE GEO DATA LAYERS (1)� Atoll Supports Several Geo Data Types

� Propagation Calculation– DTM / Clutter classes

� Dimensioning– Traffic

� Statistics & Prediction Plot Reports– Population

� Additional Maps– Vector data (Roads, railways, regions…)– Scanned maps

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MANAGE GEO DATA LAYERS (2)� Multi-Layer / Multi-Resolution Management

� In Each Folder, Priority Layer On Top To Be Used For Calculation : – " WHAT YOU SEE IS WHAT YOU GET (WYSIWYG)“– Highest resolution files on top to be used for calculation

� Working With Layers Similar To MapInfo

� Change The Order Of Layers By Drag And Drop

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GEO DATA PROPERTIES

� Generic Display Dialog

� Different Properties For Different Geo Data Types

� Example: DTM Properties

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Relief appearance

DTM map displayed

between 1:500 and 1:20 000 000

Check box to display the DTM legend in

the Legend window

Plot-band Definition

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DO NOT EMBED GEO DATA!� Make sure NOT to embed geo data in your Atoll project

� Embedding geo data would increase significantly the size of your Atoll project and can lead to numerous memory issues

� In case, you did embed geo data:� Delete the embedded file� Re-import the geo data (as previously explained)

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Do NOT click on “Embed”

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� Focus Zone� For Reports

� Filtering Zone� Filters Sites And Transmitters

� Computation Zone� Limits The Transmitters To Be Calculated

– Path loss matrices are calculated for all active transmitters impacting the computation zone

ZONES IN ATOLL4.

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Computation Zone

Filtering Zone

Focus Zone

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TRAINING PROGRAM







7. Outputs

8. Acquiring Sites

9. Traffic Data




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5. Modeling a Network (Part 1: Sites, TX)

� Atoll Naming Convention

� Sites

� Transmitters

� Antenna

� Station Templates

� Changing parameters on the map

� Network Element Grouping / Filtering / Sorting

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ATOLL NAMING CONVENTION

� Site� Geographical location on which the equipment is installed

� Transmitter (or sector)� Radio interface built on a site using antenna(s) and optionally equipment

such as TMA or feeder

� Subcell [GSM/TDMA Projects]� Set of TRXs of a same type in a transmitter

– Pair of (Transmitter & TRX type)– BCCH, TCH, TCH Inner

� Cell [UMTS Projects]� Specifications of a carrier in a transmitter

– Pair of (Transmitter & Carrier)

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SITE (1)

� Access Site Parameters� Double click / Right mouse click on map

� Expanding the folder and click on icons

� directly going into the table

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SITE (2)

� Modify A Site� Change Site Position On The Map

� Change Site Position In The Properties Dialog / In The Table

� Change Symbol, Colour, Labeling In TheProperties Dialog

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SITE (3)

� Display A SiteOpen Site Properties

Set Display Options

Map Window

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TRANSMITTER (1)

� Access Transmitter Parameters� Double click / Right mouse click on map

� Expanding the folder and click on icons

� directly going into the table

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TRANSMITTER (2)

� Modify A Transmitter� Change Transmitter Azimuth On The Map

� Transmitter Offset From Site

� Change Properties In The Properties Dialog / Table

� Change Symbol, Color, Labeling In The Properties Dialog

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TRANSMITTER (3)

� Display A TransmitterOpen Transmitter Properties

Set Display Options

Map Window (Label "BCCH")

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� Properties� Definition Of An Isotropic Gain� Definition Of Horizontal And Vertical Patterns

– Copy-paste (dialog or table) Angular attenuation(in dB) function of the

angle with azimuth

ANTENNA (1)5.

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ANTENNA (2)

� Import Antenna Files� Planet DMS� Planet EV (only via Forsk support)� Wizard 9only via Forsk supporT)� Tabulated Data (ASCII Text File)

� Import Of Planet DMS format

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ANTENNA (3)

� Access All Antenna Patterns at once� Open the antenna table

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ACCESSING NETWORK ELEMENTS

� Lists Of Elements And Related Properties� Sites� Transmitters� Repeaters� Antennas� Measurement data� Vectors� ...

� Easy Generic Management� Structure management� Custom fields� Standard shortcuts

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FILTERING/GROUPING/SORTING DATA

� Filters� Applied To Tables, Map, Explorer� Taken Into Account In Computations

� Groups� Applied To Explorer� Generates Subfolders

� Sorts� Applied To Tables, Explorer

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FILTERING FUNCTIONNALITIES (1)

� Static Filtering� Static site lists can be created / edited / deleted� Site list import & export

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� Dynamic Filtering� Spatial filtering based on geographical zones� Single parameter filtering� Via advanced multi-parameter query

� Combination of Static & Dynamic filtering

•User-Drawn •Multiple Polygons

Filtered Sites

FILTERING FUNCTIONNALITIES (2)5.

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TRAINING PROGRAM







7. Outputs

8. Acquiring Sites

9. Traffic Data




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� Prediction Study Workflow� Radio Propagation� Pathloss Matrix Setting� Mobile Height Setting� Assigning propagation model� Shadowing Margin� Defining computation zone� Basic Coverage Prediction Studies� Best Server Coverage Plot� Signal Strength Coverage Plot� Point Analysis Tool

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PREDICTION WORKFLOW 6.

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Setting Prediction Properties(Model, Pathloss Matrix Storage, Receiver)

Assigning Propagation Model to the transmitters

Defining Coverage Predictions(incl. Computation Zone)

Calculating Pathloss Matrices *(if not up-to-date)

Calculating Coverage Predictions

Analysis of Predictions

Point Analysis Tool * done automatically when calculating

Coverage Predictions

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PROPAGATION MODELS (1)� Calculation Of Losses On The TX-RX Path (Path Loss)

� Different Model Types � Standard Propagation Model� Cost Hata� Okumura-Hata� …

� Inputs� Geographical Information

– DTM– Clutter

� Information On Site– Type of Antenna– Antenna Pattern– Site Position– Antenna Height– Tilt– Azimuth

� EASY MANAGEMENT

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PROPAGATION MODELS (2)� Standard Propagation Model (SPM)

� Same equation as the Planet General Model

� Deduced From Hata Formulae

� Suitable For Predictions In The 150-2000 MHz Band

� Automatic Calibration

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� Path Loss Matrix Calculated For Each Transmitter

� Setting Of Storage Location� Make sure Path-Losses are NEVER embedded!

PATHLOSS MATRIX SETTINGS6.

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* Default Prop.model* Default Resolution for prediction Studies

Storage Location for the Path Loss Matrix

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RECEIVER SETTINGS

� Checking The Mobile Settings

For Interference Calculation

Height of the Receiver

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ASSIGNING THE PROPAGATION MODEL

� The following items have been assigned to each transmitter:� Propagation Model� Radius� Resolution

Globally for all Transmitter

For one specific Transmitter

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SHADOWING MARGIN

� Make sure the shadowing is deactivated in all calculations

Settings for the Point Analysis Tool

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Uncheck shadowing

Margin = 0 dB

Settings for the Coverage Prediction

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DEFINING THE COMPUTATION ZONE

� Import

� Draw

� Vector File As Computation Zone

Drawn with the mouse in the map window

Right mouse click on a Vector in the Map-Window or Explorer-Window

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BASIC COVERAGE PREDICTIONS

Standard Studies- Common Coverage Predictions- Specific Coverage Predictions(GSM / UMTS)

Customized Studies

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BEST SERVER PLOT

UncheckShadowing

Margin = 0 dB

Min. Threshold

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SIGNAL STRENGTH PLOT

UncheckShadowing

Min. Threshold

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POINT ANALYSIS - PROFILE

Angle of the LOS read in the antenna vertical

pattern

Diffraction LossesPropagation Model Tx-Rx Distance

Sig.level at receiver

Clutter

Fresnel ellipsoid6. B

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POINT ANALYSIS – Nth SIGNAL LEVEL6.

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TRAINING PROGRAM







7. Outputs

8. Acquiring Sites

9. Traffic Data




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7. OUTPUTS

� Creating a Plot

� Export the coverage plot

� Reports

� Histogram

� Best Server Export / Signal Strength Export

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� Workflow� Defining The Print Area� Setting Up The Page Layout� Optional: Print Preview� Print

� Define Print Area� 1 Select An Area� 2 Set The Print Area� 3 Print Area Set

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CREATING A PLOT (1)

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� Setting Up The Page Layout� Legend� Rulers� Scale� Paper Settings

� Print

CREATING A PLOT (2)7.

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� Accessible Via� Menu Tools� Toolbar Item

� Pathloss Matrix Required

� NO pre-calculated Prediction Study Required!� Calculation is done as part of the

export

BEST SIGNAL EXPORT (.grd/.grc format)

REQUIRED

FORMAT

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EXPORT COVERAGE PLOT

� Via The Context Menu

� Different file formats

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� Define Focus Zone

� Generate Report

REPORTS

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� Histogram Report Of Coverage

HISTOGRAM7.

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TRAINING PROGRAM







7. Outputs

8. Acquiring Sites

9. Traffic Data




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8. ACQUIRING SITES

� Adding a New Site to the Network

� Comparing Site Candidates

� Archive Changes (addition of new site)

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ADDING A NEW SITE

� Create Site With Station Template� Station Template Selection

– Default or user-defined templates

� Station DroppingSelection of the station template to be dropped

Tool to draw hexagons made of stations

Tool to drop a station

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COMPARING SITE CANDIDATES (1)

Transmitter grouped by site

Candidate 1 – Signal Strength Plot

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SIT

ES � Procedure1. Creation of candidates

1. Deactivate all transmitters

1. Group transmitters by site

1. Activate transmitters for candidate 1

1. Generate signal strength plot for candidate 1

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COMPARING SITE CANDIDATES (2)

Candidate 2 – Signal Strength Plot

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ES � Procedure6. Deactivate all transmitters

7. Activate transmitters for site candidate 2

8. Generate signal strength plot for site candidate 2

9. Compare coverage provided by the two candidates

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� Archive previous changes (addition of new site) to the central Oracle database

ARCHIVE CHANGES7.

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TRAINING PROGRAM







7. Outputs

8. Acquiring Sites

9. Traffic Data




Atoll 2.5

8888

9. TRAFFIC DATA

� Workflow

� Definition of traffic Parameters

� Definition of Traffic Maps

Atoll 2.5

8989

WORKFLOW9.

TR

AFF

IC D

ATA

Definition of Traffic Parameters(Service, Terminal, Mobility Type)

Import / Creation / Definition of Traffic Maps(Erlang Maps)

Traffic Analysis (covered in the advance training session)(Traffic Capture)

Dimensioning (covered in the advanced training session)

Configuration of the Network(Adding and configuring TXs, TRXs)

Quality Analysis(Interfered Areas, Coverage by C/I)

12345

6

Atoll 2.5

9090

� Parameters In The GSM/EGPRS/EGPRS Folder� Description Of Services, Terminals, Mobility Types� Used As Basis For Traffic Maps

DEFINITION OF TRAFFIC PARAMETERS (1)9.

TR

AFF

IC D

ATA

Atoll 2.5

9191

� Services� Circuit Switched� Packet Switched


TR

AFF

IC D

ATA

Atoll 2.5

9292

� Terminals


TR

AFF

IC D

ATA

Atoll 2.5

9393

� Different Type Of Traffic Maps

� Map Based On Transmitter And Services (Live traffic data)

� Map Based On Density

DEFINITION OF TRAFFIC MAPS (1)

Service zone of Transmitter A

For each defined packet service => Throughputs

For each defined circuit service => Erlangs

Service zone of Transmitter B

For each defined packet service => Throughputs

For each defined circuit service => Erlangs

Pixels covered in value intervals of traffic density (nb of users/km²)

9. T

RA

FFIC

DAT

A

Atoll 2.5

9494

� Traffic Map Based On Network Data (Erlang Maps) (1)� Create A New Map


From scratch: Based on a best-server coverage by transmitter study (defined and calculated) to obtain cells

AGD format file import

9. T

RA

FFIC

DAT

A

Atoll 2.5

9595

� Traffic Map Based On Network Data (Erlang Maps) (2)� Filling the Sector Table in term of Throughputs and Erlangs


Reference prediction defining service areas

Defined TXs

Defined services

Throughputs and Erlangs per sector

9. T

RA

FFIC

DAT

A

Atoll 2.5

9696

� Traffic Map Based On Network Data (Erlang Maps) (3)� Traffic Map Properties


Proportion of terminals for the considered map

Proportion of mobility types for the considered map

Possible clutter weighting in order to get an accurate user distribution

9. T

RA

FFIC

DAT

A

Atoll 2.5

9797

TRAINING PROGRAM







7. Outputs

8. Acquiring Sites

9. Traffic Data




Atoll 2.5

9898

10. MODELING A NETWORK (PART 2: TRX)

� Workflow

� Resource Management

� Cell Types

� TRXs

� Frequency Hopping

Atoll 2.5

9999

WORKFLOW10

. MO

DEL

ING

A N

ETW

OR

K (P

AR

T 2:

TR

X) Check / Define Resources (Frequencies, HSN, BSIC)

Check / Define Cell Types(also the assignment to the TXs)

Allocate Neighbors(automatically or manually)

Run Optimi AFP(not covered in this training session)

Import Frequency Plan from Optimi AFP

12345

Atoll 2.5

100100

� Resources To Be Managed� Frequencies� BSICs� HSNs

� Definition Of Domains And Groups� Domain = set of groups� Group = Set of resources� Allocated resources must belong

to the related domains

RESOURCE MANAGEMENT10

. MO

DEL

ING

A N

ETW

OR

K (P

AR

T 2:

TR

X)

Atoll 2.5

101101

CELL TYPES

Definition at Transmitter Level

10. M

OD

ELIN

G A

NET

WO

RK

(PA

RT

2: T

RX)

� Cell Type" = Template For Subcells� Set of TRX types

Atoll 2.5

102102

TRXs

� Properties

Group Of TRXs Of The Same Type On A Transmitter

Template For Sub Cells

Transmission / Reception Card (belongs to Transmitter)

10. M

OD

ELIN

G A

NET

WO

RK

(PA

RT

2: T

RX)

Atoll 2.5

103103

FREQUENCY HOPPING

� 2 Hopping Modes Supported� Base Band Hopping� Synthesised Frequency Hopping

� Hopping Parameters� Hopping Sequence Number� Synchronisation� Mobile Allocation List� Mobile Allocation Index Offset

10. M

OD

ELIN

G A

NET

WO

RK

(PA

RT

2: T

RX)

Atoll 2.5

104104

TRAINING PROGRAM







7. Outputs

8. Acquiring Sites

9. Traffic Data




Atoll 2.5

105105

11. GSM NETWORK PERFORMANCE

� Neighbor List

� Interface with Optimi AFP

� C/I coverage Plot

� Display Settings for GSM Predictions

� Prediction Examples

Atoll 2.5

106106

� Neighborhood Constraints� Possibility To Define Neighborhood Constraints To Be Considered

During The Automatic Neighbor Allocation

NEIGHBOUR ALLOCATION (1)

List of neighborhood relationships you may force or forbid11

. GSM

NET

WO

RK

PER

FOR

MA

NC

E

Atoll 2.5

107107

� Automatic Neighbour Allocation

NEIGHBOUR ALLOCATION (2)11

. GSM

NET

WO

RK

PER

FOR

MA

NC

E

Atoll 2.5

108108


� Graphical Display Of Neighbourhood Links On The Map� Select The Icon In The Toolbar And Click On A Transmitter On The

Map

� Possibility To Add/Remove Neighbourhood Relationships On The Map Using The Ctrl And Shift Shortcuts

Inwards link: Site6_1 is neighbour of Site9_1

Symmetric link: Site5_1 is neighbour of Site6_1 and vice-versa

Outwards link: Site1_1 is neighbour of Site6_1

Neighbourhood relationships of Site6_1

11. G

SM N

ETW

OR

K P

ERFO

RM

AN

CE

Atoll 2.5

109109

� Manual Allocation� Possibility To …

– add/remove neighbours in the Intra-technology Neighbours tab of the transmitter property dialog

– Copy/paste neighbours into the neighbour list

– Import neighbours into the neighbour list from e.g. a text-files


Neighbour list of Site6_1

List of transmitters within a 30 Km radius from the

selected one (sorted in a

ascending inter-site distance order)

11. G

SM N

ETW

OR

K P

ERFO

RM

AN

CE

Atoll 2.5

110110

INTERFACE WITH OPTIMI AFP

� Workflow

� Export Atoll project into Optimi AFP format

� Import generated frequency plan back into Atoll

11. G

SM N

ETW

OR

K P

ERFO

RM

AN

CE

Atoll 2.5

111111

WORKFLOW

Export Atoll project in Optimi AFP format(generation of numerous files)

Run Optimi AFP(not covered in this training session)

Import Optimi Frequency Plan into Atoll

12

3

Atoll 2.5

112112

EXPORT ATOLL PROJECT IN OPTIMI AFP FORMAT (1)11

. GSM

NET

WO

RK

PER

FOR

MA

NC

E

1

2

3

4

Atoll 2.5

113113

EXPORT ATOLL PROJECT IN OPTIMI AFP FORMAT (2)

� Procedure� Launch Atoll Frequency Plan -> Automatic Allocation� Select Optimi AFP� Click “Next”, “Next” and “Validate”� Click “Run” and then “Export”� After generation of numerous Optimi AFP files, click “cancel”� Relevant Optimi AFP files are available under user-defined folder

11. G

SM N

ETW

OR

K P

ERFO

RM

AN

CE

5

Atoll 2.5

114114

IMPORT OPTIMI FREQUENCY PLAN INTO ATOLL (1)11

. GSM

NET

WO

RK

PER

FOR

MA

NC

E

1

2

3

4

Atoll 2.5

115115

IMPORT OPTIMI FREQUENCY PLAN INTO ATOLL (2)

� Procedure� Launch Atoll Frequency Plan -> Automatic Allocation� Select Optimi AFP� Click “Next”, “Next” and “Validate”� Click “Run” and then “Import”� After import of frequency plan, click “commit”

11. G

SM N

ETW

OR

K P

ERFO

RM

AN

CE

5

Atoll 2.5

116116

C/I COVERAGE PLOT11

. GSM

NET

WO

RK

PER

FOR

MA

NC

E

1

2

3

4

5

Atoll 2.5

117117

INTERFERENCE ANALYSIS (POINT ANALYSIS)

Signal level (C) of the potential

victim at the receiver

Received noise (I) from surrounding co- and

adjacent Channels at the receiver

Transmitters participating in the noise determination

Resulting C/I value

Studied Transmitter,

interference type and condition

Interference Area based on C/I conditions

11. G

SM N

ETW

OR

K P

ERFO

RM

AN

CE

Atoll 2.5

118118

DISPLAY SETTING FOR GSM PREDICTIONS11

. GSM

NET

WO

RK

PER

FOR

MA

NC

E

Atoll 2.5

119119

PREDICTION EXAMPLE11

. GSM

NET

WO

RK

PER

FOR

MA

NC

E

EDGE Prediction Study (Throughput/Timeslot in kBits/s)

Atoll 2.5

120120

TRAINING PROGRAM







7. Outputs

8. Acquiring Sites

9. Traffic Data




Atoll 2.5

121121

12. PROPAGATION MODEL TUNING

� Propagation Model Tuning Workflow

� Import of Measurement Data

� Managing Measurement Data

� Initial Propagation Model

� Propagation Model Calibration Wizard

� Final Propagation Model

[Reference: Standard Propagation Model Guide]

Atoll 2.5

122122

PROPAGATION MODEL TUNING WORKFLOW12

. MO

DEL

TU

NIN

G

Import of Measurement Data(CW Measurement Data)

Data Post-Processing (Data Analyzing, Data Filtering)

Calibration

Verification

1234

Atoll 2.5

123123

IMPORT OF MEASUREMENT DATA

� Import

� CW Measurement Data– Files for each single transmitter

� Supported Files– Any ASCII text file – Survey Files Planet export (*.hd)– Multi-Import Files (*.ami)

� Import Via– Generic import (Excel-like)– Possibility to import any additional information– Definition and storage of import configurations

12. M

OD

EL T

UN

ING

Atoll 2.5

124124

MANAGING MEASUREMENT DATA (1)

� CW Measurement Data

Two ways of predicting along CW measurement path :• Using path loss matrix

(if existing)• Choice of a propagation

model to compute in real-time

Statistic reports (Averaged error and error standard

deviation per clutter class)Filter on distance, measured signal

level and angle/azimuth

Advanced filter on additional survey data

Filter per type(s) of clutter

Access to a precise analysis on the points to be

filtered for the calibration

12. M

OD

EL T

UN

ING

Atoll 2.5

125125

MANAGING MEASUREMENT DATA (2)

� CW Measurement Data – Filtering Assistant

Selection rectangle

Cursor position

Selection rectangle

details

Cursor

12. M

OD

EL T

UN

ING

Atoll 2.5

126126

INITIAL PROPAGATION MODEL

� Max Distance� Forced to 0 during calibration� If >0 no continuity ensured

� KCLUTTER� = 1 is recommended� Multiplying factor

of clutter losses

� Minimum Loss� = Free space loss� Avoid unrealistic values

12. M

OD

EL T

UN

ING

Atoll 2.5

127127

CALIBRATION WIZARD

1

2

3

4

1) Start the Calibration2) Select the measurements which should be used for calibration3) Defined the parameters which should be calibrated (+ domain)4) Verify the result (and commit the tuned parameter)5) Commit the changed parameters

12. M

OD

EL T

UN

ING

5

Atoll 2.5

128128

FINAL PROPAGATION MODEL

� Clutter Loss Weighting� Smooth Clutter Effect� Over A Max Distance From Receiver� Different Weighting Functions

( ) ∑=

=n

iiiwLclutterf

1

12. M

OD

EL T

UN

ING

Documents

Atoll GSM Training Slides