4G Lte DT Optim Planning Atoll

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1Alfin Hikmaturokhman.,ST.,MT

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RF Planning Tools

Asset AircommNetact Tornado Planet Ev / Mentum PlanetAtollU-netTCP (Tems Cell Planner)ZXPOS CNS

Alfin Hikmaturokhman,MT 2

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RF Planning Tools


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Training Program

• Atoll Overview

• Modelling Lte Network in Atoll

• Step by Step to Start the Lte Atoll Project

• Make Coverage Prediction

• Prediction Analysis

• Neighbour Planning

• PCI Planning

• Capacity Planning


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Atoll General Concepts Multi-technology tool

2G (GSM/GPRS/EDGE), 3G (W-CDMA/UMTS HSPA, CDMA2000 1xRTT 1xEV-DO, TD-SCDMA), 4G (LTE), WiMAX 802.16d and 802.16e, microwave links

Open, scalable and flexible architecture

Largest third-party product offering available on the market Dynamic simulators, propagation models, etc.

Ergonomic and user-friendly GUI Windows-based tool Copy/paste and export/import of radio/geo data in/from standard applications

Flexibility in data management Display, sorts, filters

Slide 5 of 61Alfin Hikmaturokhman,MT

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LTE Workflow in AtollLTE Workflow in AtollOpen an existing project or create a new

one

Prediction study reports

Traffic maps

Network configuration- Add network elements- Change parameters

User-defined values

Automatic or manual neighbour allocation

Basic predictions(Best server, signal level)

Monte-Carlo simulations

Signal quality and throughput predictions

Cell load conditions

Subscriber lists

And/or

Frequency plan analysis

Automatic or manual frequency planning

Automatic or manual physical cell ID planning

6Alfin Hikmaturokhman,MT

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Atoll ProjectAs in any RF tool, the following information is needed to create a project in Atoll.Geodata FDD or TDDSpectrum: frequency band and channel bandwidthPropagation ModelSite, Cell, Transmitter info Bearer infoOther LTE Parameters


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Launch Atool & User Interface


LOGOGet Started


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LOGO Setting Project Area


LOGOImport Map


LOGOImport Raster Map

Generally the following data maps need to be imported in Atoll: heights (map of the altitude above sea level), clutter classes (type of land used) and vectors (vector maps). The import order is optional.

Generally the following data maps need to be imported in Atoll: heights (map of the altitude above sea level), clutter classes (type of land used) and vectors (vector maps). The import order is optional.


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Import Clutter DataClick File->Import, open the index.txt file for clutter data, select Clutter Classes, click OK.


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Import DTM DataClick File->Import, open the index.txt file for DTM data, select Altitudes, click OK.


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Vector index ->VectorsVector index ->Vectors


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Antenna Patterns Antenna patterns can be imported into Atoll, or manually added.


LOGO Set Antenna


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Horizontal and Vertical Patern


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Input Lte PARAMETER


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Import Sites TableIn Atoll, for each eNodeB a site and transmitters are defined. The site info refers to the physical location of the site, and transmitter info refers to cell configuration including antenna.

In Sites table, the site name, longitude and latitude are given. The following is a site template in .csv format.

Make sure the column for Altitude is blank. When the file is imported into Atoll, the site altitude info will be updated automatically based on DTM data.

Keep Altitude column blank


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Contd..

Under Network tab of the “Explorer” window, double clicking on the “Sites” folder (or right clicking on the “Sites” folder and select “Open Table”) will open the “Sites” table, as shown in the following figure


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Contd..


LOGOTransmitters parameters setting

Double click on the “Transmitters” folder in Network tab (or right click on “Transmitters” and select “Open Table”) to open the “Transmitters” table, as shown in the following figure.


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Contd..


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Add new sites The steps for importing the network data into Atoll have been introduced above. Atoll also

provides another method to add new sites directly in the Map Window.

Atoll adds the corresponding information into the data sheets


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Add a group of sites Click on the Atoll toolbar button, then a polygonal symbol will be added behind the cursor. Then

draw a polygon in the Map Window to add a new group of sites inside the selected region.


LOGOSet the propagation model for each transmitter

Open the “Transmitters” tab and select the propagation model in pull-down menu of the “Main propagation model” field


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Atoll integrates many propagation models including Okuruma-Hata, Cost-Hata, SPM (Standard Propagation Model), ITU370, ITU526, ITU 529, Longley-Rice, Erceg-Greenstein (SUI), Sakagami Extended (3.5 GHz) and WLL models.


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Contd.. If all transmitters use the same propagation model, then the quickest way is to

define the model in the “Transmitters properties” dialog box. In the “Propagation” tab, select the propagation model.


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Frequency Bands setting

Under Parameters tab, click ->Network Settings-> Bands to open the table for band and channel definition.

Make sure the required spectrum is defined correctly. If it is not defined, It can be added in the table manually


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Contd..


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Cells setting

In Atoll, Cell represents a channel/carrier and its property, so it’s possible for user to configure a LTE network with multicarrier.

In an LTE project, cells must also be added to each transmitter. A cell refers to the characteristics of an RF channel on a transmitter.


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Cells Table To open the “Cells table”, right click on “Transmitters” in the Network tab and

select “Cells->Open Table”, as seen in the following figure. The cells for a site can be added only after the transmitter info is available in Atoll


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Contd..


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MIMO Systems in Atoll LTE Base stations and user equipment support MIMO systems

Gains graphs available in reception equipment

Numbers of transmission and reception antenna ports at base station and terminal

Antenna diversity modes in Atoll LTE Multiple Input Multiple Outputs (MIMO) systems

• Transmit/Receive Diversity (also called Space-Time Coding (STC) or Matrix A MIMO in other standards)– More than one transmission antenna to send the same data– Improvement of CINR Higher bearer Higher throughput– Usually used in coverage areas with bad CINR conditions

• Single-User MIMO (SU-MIMO) or Spatial Multiplexing (SM) (also called Matrix B MIMO in other standards)– More than one transmission antenna to send different data streams on each antenna– Improvement of throughput for a given CINR– Usually used in coverage areas with good CINR conditions

• Adaptive MIMO Switch (AMS)– Technique to switch from SM to Tx/Rx Diversity as CINR conditions get worse than a given threshold


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MIMO Settings Atoll allows users setting parameters related to MIMO according to their

requirement to simulate MIMO technology. In Parameters-> Network Settings -> Reception Equipment -> Default Cell

Equipment/Default UE Equipment.


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Contd.. Right click on Transmitter folder in Network tab and select Open Table to set the

number of reception/transmission antennas for MIMO transmitter as seen in below figure.


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Contd.. In Parameters -> LTE Parameters ->Terminals to set Antenna Diversity Support

as MIMO for terminal using MIMO,


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Contd.. Cell in Network tab and select “Open Table” to set UL/DL diversity support types

for cell using MIMO


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Smart Antenna Settings Open the properties dialogue of smart antenna models (Parameters tab -> Radio Network

Equipment -> Smart Antenna Models) to check the number of elements and single element pattern has been defined.


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In Transmitter table, select Smart Antenna Equipment for each sector


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Contd.. Enable AAS capability on both sector side and terminal side. Cells table:


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Contd..

Terminal properties:


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Coverage Predictions

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Create New PredictionTo create a new prediction, click Predictions->New, select the desired prediction study and click OK.

The new study is added in the Predictions folder. Click the new study-> Calculate, the prediction should be performed. Check the box on the left of the study to show the results.


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Contd..


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Setting the Computation Zone

If there is no computation zone defined, the pathloss matrices for all transmitters will be calculated, based on the calculation radius and the signal threshold.

If the user wants to calculate the pathloss matrices only for a specific region, a Computation Zone can either be imported or directly drawn in the Map Window.


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Define ZonesTo define a Computation zone, click the zone->Draw, an draw the polygon on the maps. It can also be imported. The defined zone can be deleted, edited, and exported if desired.


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Neighbours Allocation


LOGOManually Allocation Feature

Right click on the “Transmitters” folder in the Network tab and select “Neighbours-> Intra Technology Neighbours”.


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Contd.. In the appeared table, fill with the neighbours list.

Click on the toolbar icon and the select one transmitter on the Map Window. The neighboring relations of this transmitter will be displayed graphically, as shown in the following figure.


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Contd..

Masukan neighbour site 129_1, 129_2, 129_3


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Automatically Allocation

Right click on the “Transmitters” folder in the Network tab and select “Neighbours-> Intra Neighbours-> Automatically Allocation…”.


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Contd.. The automatic allocation results will be displayed in the same dialog box.

According to the results, the user may choose to commit the automatic neighbour allocation list by clicking on the “Commit” button.


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Automatic Frequency Allocation

Right click on the “Transmitters” folder in the Network tab and select “AFP->Automatic Freq Allocation”.


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Contd.. Click on Calculate button in the bottom of dialog box to start the frequency

allocation. The allocation result will displayed in the same dialog box, the result could be committed to the cells table by clicking on Commit button.


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contd Open the Cells table to check the updated the Channel Allocation Status will be

automatically changed to Allocated


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Physical Cell ID Allocation


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PCI Planning


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Contd..


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Example : PCI Planning

There are 504 PCI availableFor Macro eNode B we use 0-443 (148 site’s)For IBS eNode B we reserve 444-503 for PCI Planning (20

site’s)


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Manual PCI Allocation

Right click on the “Transmitters” folder in the Network tab and select “Cells->Open Table”, input the PCI in the Physical Cell ID column as below


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Automatic PCI Allocation

Right click on the “Transmitters” folder in the Network tab and select “Cells->Physical Cell IDs->Automatic Allocation


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Channel Search Tool


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Physical Cell ID Search Tool


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PCI Allocation Audit


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Alfin Hikmaturokhman.,ST.,MT

71Alfin Hikmaturokhman.,ST.,MT

4G Lte DT Optim Planning Atoll

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