03 RMS Frequency Planning Method

5/28/2018 03 RMS Frequency Planning Method

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All rights reserved 2005, Alcatel

A9155 Frequency PlanningRMS Method

10-13 July 2006 Cascais, Portugal


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All rights reserved 2005, AlcatelPresentation Title / Date

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RMS Frequency Planning

Puzzling the Inputs for 2G Frequency Planning

Creation of Compatibility Matrix from RMS Measurements

Project Scheduling of a RMS Frequency Planning Campaign

The Alcatel Toolchain Product for RMS Frequency Planning

Exemplary RMS Frequency Planning Experiences


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Traffic Demand

Evolution


Adjacent Cells

Licensed Spectrum

Resources

Compatibility Matrices


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Decision for different Compatibility Matrices in FPDescription -

Predicted

Interference Matrix

Automatic RNP createdInterference IM basedon field strengthprediction

Covers all cells

Fast creation

Needs exact NW design

Model Calibration

Geo databases

Drive Test

Interference Matrix

IM based on C/I drive

test measurements

IM directly from the

user

High creation effort

Not all area covered

C/I RadioMeasurement

Statistics Int. Matrix

IM based onmeasurementsperformed by each usermobile

? ?RNEs ExperienceMatrix

Manually created In-compatibility Matrixbased on RNEs localexperience

Covers singularincompatibilities thathave not beendetected by any othermethod

Incomplete Matrix


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Creation of Compatibility Matrix from RMS Measurements





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C/I on Neighbour Cells


Number of consecutive badspeech frames (BFI)

Basic Principles ofRMS

DL / UL quality and level

Radio Link Counter (UL)

Path Balance and TA

Power and Number of channelseizures (TCH occupancies)

9 Voice quality indicators

BSC

OMC

RMSEach Mobile Stationmeasures figures thatlead to RMS reports of:


7/21All rights reserved 2005, AlcatelPresentation Title / Date

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C/I measurements are performed on all frequencies thatappear in the Neighbour BCCH -List

Defined Neighbour Cells

Cells that have the same BCCH frequencies like the neighbourcells

Measured Cells (MCs) are:



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For each pair of Serving Cell (SC)and Measured cell (MC) one C/I

Vector is created

SC

MC A

MC B

MC C

MC D

MC E

MC F

0 3 96 12- -12 -9 -6 -3

SCMC A

C/I Pots defined by C/I thresholds

C

I



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Mutual Interference Probability between SC and MC

-0 3 96 12-12 -9 -6 -3

C/I Interference Threshold

Non-InterferedInterfered

Mutual Int. Prob (SC, MCA) = # Interfered/(# Interfered +# Non-Interfered )



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Resulting RMS Interference MatrixInterf.

Server

SC A B C D E F

SC - 0.31 0.23 0.18 0.54 0.3 0.1

A 0.28 - 0.28 0.12 0.10 0.09 0.10

B 0.21 0.3 - 0.18 0.13 0.06 0.07

C 0.19 0.15 0.21 - 0.35 0.07 0.01

D 0.51 0.11 0.15 0.37 - 0.29 0.18

E 0.28 0.08 0.04 0.13 0.28 - 0.38

F 0.09 0.09 0.08 0.04 0.21 0.40 -

S

C

A

B

D

CE

F



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BUT: This RMS Interference Matrix does not contain allcells !

?

Solution: Boosting the Approach by Adding Dummy Neighbours !!!



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Narrow BCCH Band Approach ( BCCH band



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Goal: Measuring cells in consecutive packages starting with the most important


Wide BCCH Band Approach ( BCCH band >= 32 )

Basic RMS MeasurementBasic RMS Measurement+

Dummy Neigbhour Package

Assumption: BCCHs are homogenous distributed over a band > 32

Method: Setting up HOs to real existing cells in the network

Inhibiting HO execution by parameter setting ( for instance HO_MARGIN =127 )

Selection of important cells by using other criteria ( for instance Predicted IM)


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Achievement: An exhaustive RMS Interference Matrix !!!A B C D E F G H I J K L .. ..

A

B

C

D

E

F

G

H

I

J

K

L

..

..


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Summary different Compatibility Matrices in FPDescription

Predicted

InterferenceMatrix

Automatic RNP createdInterference IM based on fieldstrength prediction

Covers all cells

Fast creation

Needs exact NW design

Model Calibration

Geo databases

Drive TestInterferenceMatrix

IM based on C/I drive testmeasurements IM directly from the user High creation effortNot all area covered

C/I RadioMeasurement

Statistics IM

IM based on measurementsperformed by each usermobile

Real Traffic Amount

Real Traffic Distribution

Interesting in Costs

Network Freeze Period

Non-operational Cells notconsidered

ExperienceMatrix

Manually created In-compatibility Matrix based onRNEs local experience

Covers singularincompatibilities that havenot been detected by anyother method

Uncomplete Matrix


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Creation of Compatibility Matrice from RMS Measurements





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Typical Process & Scheduling of a RMS FP Campaign

M T W T F S S M T W T F S M T W T F S S M T W T F S S

Phase 3

RMS Interference Matrix

Generation & Analysis

Phase 1

Project Setup / Network Analysis

Generation of Dummy

Neighbours

Network QoS Monitoring

Dummy P1 Activation

Phase 4

Frequency Plan Optimization

FP Benchmarking OldNew

Activation Preparatioin

New Frequency Plan

Activation

Dummy P1 Deletion

Phase 2

RMS Measurements

Downloading RMS Files

Network QoS Monitoring

Network Freeze


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Puzzling the Inputs for Frequency Planning

Creation of Compatibility Matrice from RMS Measurements





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The Alcatel Product Solution: A9155 RNP

A9155 V6 RNP

ACIE

ACIE

OMC 1

OMC 2

RMS

RMS

Phase 1

Current Network Analysis

Generation/Implementation/Deleti

on of Dummy Packages

Phase 2

Downloading RMS Files

Phase 3

RMS Interference Matrix

Phase 4

Frequency Plan Optimization,

Benchmarkin & Implementation


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Experience

Matrix

Predicted

Interference

Mixed

Matrix

RMS

Matrix


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03 RMS Frequency Planning Method