2003 by LS telcom AG - ITU

1 2003 by LS telcom AG Supporting Network Planning Tools rgoetz@LStelcom.comwww.LStelcom.com

Session 5.9

Supporting Network Planning Tools III

Roland GötzLS telcom AG / Spectrocan

Modern Radio Network Planning Tools

Geo Information System

Data Management

Graphical User Interface

Propagation Prediction

Interference Analysis

Network Processor

Data / Result Output

Radio Network Planning ToolNetwork Processor

The Network Processor

• produces network-wide results out of the single-cell-based results • allows to analyse the radio network• allows to simulate changes of the network parameter• allows to simulate changes of the network design• allows to optimise the radio network• allows to plan the future roll-out phases• produces statistics on the selected results

Each Service needs an own service-specific Network Processor

Network Processor

Coverage of Single Sectors

Principle of calculation: Combination of different single results

BS2BS3

Result for BS 1Result for BS 1

Combined resultCombined result

Network Processor

Maximum Field Strength:For every pixel, this plot shows the signal level of the cell/transmitter producing the maximum single field strength.

-120 -128 -130

-120 -127 -129

-115 -118 -121

-95 -80 -75

-90 -75 -70

-85 -70 -65

-65 -80 -95

-65 -75 -95

-65 -80 -75

-65 -75 -70

-65 -70 -65

Sector 1

Sector 2

Sector 3

Max. Field.

Maximum Field Strength

Network Processor

Maximum Field Strength

Maximum Field Strength (Network)

Network Processor

Maximum Server:The maximum server plot shows, for a certain pixel, the name of the transmitter featuring the maximum signal; its field strength must exceed the minimum field strength required for coverage, Emin equiv.

-120 -128 -130

-120 -127 -129

-115 -118 -121

-95 -80 -75

-90 -75 -70

-85 -70 -65

-65 -80 -95

-65 -75 -95

S3 x S2

S3 S2 S2

Sector 1

Sector 2

Sector 3

Max. Server

Pmin= -75dBm

Network Processor

Maximum Server

Network Processor

Maximum Server

Network Processor

Maximum Server (Network)

-120 -128 -130

-120 -127 -129

-115 -118 -121

-95 -80 -75

-90 -75 -70

-85 -70 -65

-65 -80 -95

-65 -75 -95

S3 x S2

Sector 1

Sector 2

Sector 3

Best Server

Pmin= -75dBmC/Imin= 7 dB

Network ProcessorBest Server:The maximum server plot shows, for a certain pixel, the name of the transmitter featuring the maximum signal; its field strength must exceed the minimum field strength required for coverage, Emin equiv and the Minimum C/I

Best Server

Network Processor

Best Server

Maximum Server Best Server

Interference

InterferenceInterference

Network Processor

Best Server (Network)

Maximum Server Best Server

Network Processor

Network Processor Results

Many other service-specific results can be processed by apowerful Network Processor, like:

• Number of Max Sever• Number Best Server• Strongest Interferer• Level of Strongest Interferer• Coverage Probability• Coverage Reserve

• Power Difference• Assignment Probability• Handover Zone• Requeired Channels• Coding Sheme Area(GPRS)• SFN Level Gain• ...

Allocation algorithm

Number of required carriersChannel constraints

Cell specific parameter Cell relationsFrequency spectrum

Network wide parameter

Channel allocation

Neighbour relationsChannel separation matrix

� LS Box algorithm� Simulated annealing algorithm

Network Processor – Advanced Analysis

Interference AnalysisInterference Matrix

Interference AnalysisAutomissed Frequency / Channel Assignment

LivePlanning Tool Demonstration

„MULTIlink“Design Tool for Engineering Microwave Links

and PMP / WLL / LMDS Planning

Modern Radio Network Planning Tools

Geo Information System

Data Management

Graphical User Interface

Propagation Prediction

Interference Analysis

Network Processor

Radio Network Planning Tool

Planning Tool Database

ExportExport

ImportImport

Import and Export

Import and Export of

Databases and Tables ( Sites, Antennas,…)Result FilesMeasurement Data

Should be possible in several formats (.txt, .xls, ASCII, .jpg, …)

Import measurement data� Analogue� Digital� BER

Evaluation of measurement data� Rohde&Schwarz,� Alcatel, Ericsson TEMS, generic ASCII

Plotting of measurement dataCalibration

� Path loss fit� Calibration of extended OH model

Example: Measurement Data

� Application specific frame

� Legend

� Print in specific map scale

� Specify margins and borders

� Multiple printing

� Support various paper sizes

� Add site specific information

Print Process Preview

Printing of Maps and Result Plots

Printing of Database Lists

Example

Network Optimization

indoor urban

indoor suburban

outdoor

outdoor urban

Region of your networkCurrent network coverage

Now, we wantto improve the coverage in this region.

Network Processor

Example: Coverage Optimisation GSM Network

Candidate Steffisburg A

Network Processor

Candidate Steffisburg B

Network Processor

Candidate Steffisburg C

Network Processor

Direct comparison of the three alternative site positions

Selection of Candidate Steffisburg C

Network Processor

Previous coverage Improved coverageNetwork Processor

indoor urban

indoor suburban

outdoor

outdoor urban

SoftwareTools

EngineeringServices

TrainingConsultancy

Solutions for Spectrum Management, GSM900, GSM1800, Microwave Links, PMP, LMDS, Radio/TV Broadcast, DVB, DAB, Trunked Radio, TETRA, Paging, Satellite Services

Is there anything else we can do for you?

For more information:

Roland GötzMember of the Board, LS telcom AGPhone: +49 (0) 7227 9535 700Email: rgoetz@Lstelcom.comWeb: www.LStelcom.com

Thank you for your attention

2003 by LS telcom AG - ITU

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