DESIGN AND IMPLEMENTATION OF A TOOLKIT FOR THE PROCESSING OF FILES ISSUED FROM RADIO MEASUREMENTS AND THE AUTOMATIC ALLOCATION OF CELL Ids TO NEW

Dedication UNIVERSITE DE YAOUNDE I UNIVERSITY OF YAOUNDE I ECOLE NATIONALE SUPERIEURE POLYTECHNIQUE NATIONAL ADVANCED SCHOOL OF ENGINEERING DEPARTEMENT DE GENIES ELECTRIQUE ET TELECOMMUNICATIONS DEPARTEMENT OF ELECTRICAL AND TELECOMMUNICATIONS DESIGN AND IMPLEMENTATION OF A TOOLKIT FOR THE PROCESSING OF FILES ISSUED FROM RADIO MEASUREMENTS AND THE AUTOMATIC ALLOCATION OF CELL Ids TO NEW CELLS End of Course dissertation written by CHEFUH DIVINE NGWA In partial fulfilment of the requirements for a MASTERS DEGREE IN ENGINEERING SCIENCES In Telecommunications Engineering Under the Supervision of Pr TONYE Emmanuel E.N.S.P Yaoundé Mr MASSOGUE Vincent Engineer Orange Cameroun SA President: Superviser : Members : Defended before the Jury composed of: Pr TIEDEU Alain Professor (E.N.S.P) Pr TONYE Emmanuel Professor (E.N.S.P) Dr Bell BITJOKA Georges Senior Lecturer (E.N.S.P) Dr NGOHE Paul Salomon Senior Lecturer (E.N.S.P) Mr MASSOGUE Vincent Radio Engineer (Orange Cameroun SA) 2010-2011 Academic year Defended on the 25th of June 2011 Design and Implementation of a Toolkit for the Processing of files issued from Radio Measurements and the Automatic Allocation of Cell Ids to New Cells End of course Dissertation written by: CHEFUH DIVINE NGWA – June 2011 Dedication DEDICATION To my lord JESUS CHRIST I thank you lord for your constant intervention in all aspects of my life I thank you especially for your help during the period of my end of course dissertation Father you gave me all the strength and support I needed You made available to me all the resources I asked for, be it human or material You nourished my spirit and that gave me the strength and courage to breakthrough all difficulties Lord, yours I am and yours I want to remain Do with me whatever you wish To my loving parents My father CHEFUH James MUYAH and mother CHEFUH Patricia LUM I thank you very much for your love and care I know you have always wanted to give me the best in all situations May the almighty reward all your efforts and grant your greatest desires Design and Implementation of a Toolkit for the Processing of files issued from Radio Measurements and the Automatic Allocation of Cell Ids to New Cells End of course Dissertation written by: CHEFUH DIVINE NGWA – June 2011 Acknowledgments ACKNOWLEDGEMENTS Thanks to everyone who assisted me to realise this work They include: My Academic Supervisor, Pr Emmanuel TONYE for all the advice and encouragement during this internship and during my stay at ENSP Also, to all the other Lecturers of ENSP Pr Alain TIEDEU, for accepting to preside over my jury Dr Bell BITJOKA Georges of Electrical and Telecommunications department, for accepting to examine my work Dr Paul Salomon NGOHE of the department of Mathematics and Physical sciences, for accepting to examine my work My professional Supervisor, Mr Vincent MASSOGUE (radio engineer OCM) for all the help and contributions he made to make this work better The chief of service of the Littoral-West radio department, Mrs NGO BIBOUM Clémence for her constant encouragements and motherly care The Littoral-West radio engineers of Orange CAMEROUN SA, Mr Anicet KEMAYOU, Mr André YOKO, Mr Yves NYEMB, Mr Charly YAMB, all the technicians Mr AMADIANG Charly, Mr Eric MINE, Mr Gerald HIOM and Mr Christian MEKOUNDI for accepting me in their mist The NSS Engineering department especially Mr Freddy OYONO for the training I received from them during my 2010 internship in Orange Cameroun SA All my classmates of GTEL promo 2011 AYUNI SENGUM FAI, for being my friend, study mate…, for everything All my friends who have continually encouraged me, especially NJUMBE Divine All my Aunties and Uncles for the wonderful support they gave me My Brothers and sisters BISI, EMI, VAL, VEVE, NENE and JAY-JAY My grandparents and all other relatives Design and Implementation of a Toolkit for the Processing of files issued from Radio Measurements and the Automatic Allocation of Cell Ids to New Cells End of course Dissertation written by: CHEFUH DIVINE NGWA – June 2011 List of abbreviations LIST OF ABBREVIATIONS AUC BSC BSS BSSAP BTS CEPT CGI CI DCS EIR ETSI GSM HLR IM IMEI IMSI ISDN LAI MAP MCC MS MSC MSIN MSISDN MSRN NPO NSS OCM OMC OSS PCS QoS SIM SMS SS7 TDMA TEMS TMSI TRAU TRX TUP VLR VSAT WIMAX Authentication Centre Base Station Controller Base station Subsystem Base Station Subsystem Application Part Base Transceiver Station Conference of European Posts and Telegraphs Cell Global Identity Cell Identity Digital Cellular System Equipment Identity Register European Telecommunications Standards Institute Global System for Mobile Communication Home Location Register Interference Matrix International Mobile Equipment Identity International Mobile Subscriber Identity Integrated Services Digital Network Location Area Identification Mobile Application Part Mobile Country Code Mobile Station Mobile Station Controller Mobile Station Identification Number Mobile Station ISDN Number Mobile Station Roaming Number Network Performance Optimiser Network Subsystem Orange Cameroun Operations and Maintenance Centre Operations Subsystem Personal Communication System Quality of Service Subscriber Identification Module Short Message Services Signalling System Number Time Division Multiplexing Test Mobile System Temporal Mobile Subscriber Identity Transcoder and Rate Adaptation Unit Transceiver Telephony User Part Visitor Location Register Very Small Aperture Terminal Worldwide Interoperability for Microwave Access Design and Implementation of a Toolkit for the Processing of files issued from Radio Measurements and the Automatic Allocation of Cell Ids to New Cells End of course Dissertation written by: CHEFUH DIVINE NGWA – June 2011 ABSTRACT/RESUME RESUME ABSTRACT In a cellular network, a good frequency Dans un réseau cellulaire, un bon plan de plan is a fundamental factor to reduce fréquence est nécessaire pour la réduction interferences Several applications have des interférences Plusieurs logiciels aident been designed to assist in the realisation of la réalisation des plans de fréquence telle frequency plans, like the software ATOLL qu’ATOLL Ce logiciel s’appui sur les This prediction calculs de prédictions pour caractériser les calculations to characterise interferences interférences entre les cellules Ces calculs between cells Prediction calculations have de prédictions sont basés sur les données limitations since they rely on geographical géographiques qui ne sont pas précises databases which are not accurate in some dans certaines régions Alors, il est regions Thus, real field data is needed to nécessaire de compléter ces données de complete that which is gotten from prédictions avec celles du terrain software relies on prediction calculations Pour fournir les données du terrain au To supply field data into the frequency processus allocation process the approach here is to l’approche consiste utiliser les fichiers use log files issued from drive tests (radio logs issus des mesures radio Afin de measurements) to generate interference générer des matrices d’interférences et les matrices which are injected into Frequency injecter aux Modules de Planification de Planning Modules Fréquences In this project, a toolkit was designed that Dans le cadre de ce mémoire, un outil a permits the generation of all ATOLL ộtộ conỗu pour permettre la génération des compatible interference matrices These matrices matrices were imported into ATOLL for ATOLL Ces matrices ont été importées use in frequency planning, and they also dans ATOLL où elles seront utilisées pour served as basis for interference analyses la between couples of cells constitueront Another aspect realised in this project is d’allocation d’interférence planification les de de fréquences, compatible fréquences, données de et base d’analyse d’interférences the automatic allocation of cell identities to Un autre volet de ce travail est l’allocation new cells automatique des « CELL ID » aux nouvelles cellules Key Words: Interference matrix, Cell id, Drive tests, Frequency planning, QoS Design and Implementation of a Toolkit for the Processing of files issued from Radio Measurements and the Automatic Allocation of Cell Ids to New Cells End of course Dissertation written by: CHEFUH DIVINE NGWA – June 2011 List of figures and tables LIST OF FIGURES Figure 1: Architecture of Generic GSM Network 14 Figure 2: The Orange Cameroon Network (May 2011) 16 Figure 3: Fields of LAI 18 Figure 4: Fields of CGI 18 Figure 5: Other transmitters emitting at the same frequency band as serving transmitter 22 Figure 6: Other transmitters emitting at the adjacent frequency bands as serving transmitter 22 Figure 7: Frequency reuse pattern 23 Figure 8: Inputs into the AFP module of ATOLL 24 Figure 9: Some ATOLL modules 32 Figure 10: Procedure for interference matrix generation 34 Figure 11: Sample im0 file format interference matrix 36 Figure 12: Sample clc file format interference matrix 37 Figure 13: Sample dct file format interference matrix 39 Figure 14: Sample im1 file format interference matrix 40 Figure 15: Sample im2 file format interference matrix 42 Figure 16: Flowchart for generation of the im0 file format interference matrix 45 Figure 17: Flowchart for generation of the im2 file format interference matrix 46 Figure 18: Correlation analyses show highly reliable drive test based data 49 Figure 19: Correlation analyses show highly reliable drive test based data 50 Figure 20: Factors to consider during the allocation of new CI values 51 Figure 21: Steps to put in place mechanism for CI allocation 53 Figure 22: Sample BSS Configuration files in the directory ACME of the OMC-R 54 Figure 23: Header of a sample BSSConf file (BSSConf.omcrdla1.20110510090500) 54 Figure 24: CELL_SECTION of sample BSSConf file 55 Figure 25: Illustration of mechanism for CI attribution as in OCM 56 Figure 26: Flowchart for automatic allocation of CI values 58 Figure 27: Platform architecture 59 Figure 28: Database conception 60 Figure 29: Final database tables 60 Figure 30: Toolkit arborescence 63 Figure 31: Authentication page 64 Figure 32: Application Home Page 65 Figure 33: Generation of an Interference matrix 66 Figure 34: Sample of im0 interference matrix generated from IM_CI Tool 67 Figure 35: Upload new log file to server 67 Figure 36: Combining multiple log files 68 Figure 37: Loading interference matrix for comparison 69 Figure 38: Example Results of evaluation 69 Figure 39: Interactive interference analyses 70 Figure 40: C/I histograms for server-interferer couple 71 Figure 41: Channel information for frequency analyses 71 Figure 42: Input parameters for CI allocation 72 Figure 43: Cell Ids generated for cells of tri-sectorial site 73 Figure 44: Mailing list 73 Design and Implementation of a Toolkit for the Processing of files issued from Radio Measurements and the Automatic Allocation of Cell Ids to New Cells End of course Dissertation written by: CHEFUH DIVINE NGWA – June 2011 List of figures and tables LIST OF TABLES Table 1: GSM key Interfaces and protocols 17 Table 2: logic channels 19 Table 3: Different RxLev ranges 20 Table 4: Correspondences between BER and signal quality (RXQUAL) 21 Table 5: Channel protection ratios 23 Table 6: Comparison with NGAN TAFAM 30 Table 7: Comparison with NDEFO TAKA 31 Table 8: columns definition for im0 files format interference matrices 35 Table 9: Columns definition for clc files format interference matrices 37 Table 10: Columns definition for dct files 38 Table 11: Columns definition for im1 files format interference matrices 40 Table 12:Columns definition for im2 files format interference matrices 41 Table 13: List of log-file information elements for IM generation and interference analyses 44 Table 14: Interference matrices with high correlation 48 Table 15: Interference matrices with low correlation 49 Table 16: CI value ranges for GSM band per zone as used in Orange Cameroon 51 Table 17: Ranges of CI values for DCS band per zone as used in Orange Cameroon 52 Table 18: Example of CI values for site with cells 52 Table 19: Programming Languages 61 Table 20: Programming tools 61 Table 21: Template for exporting TEMS log file 76 Design and Implementation of a Toolkit for the Processing of files issued from Radio Measurements and the Automatic Allocation of Cell Ids to New Cells End of course Dissertation written by: CHEFUH DIVINE NGWA – June 2011 Table of Contents TABLE OF CONTENT Dedication _ Acknowledgements _ List of Abbreviations _ ABSTRACT _ RESUME List of figures List of tables _ Table of content INTRODUCTION _ 10 CHAPTER 1: 1.1 1.1.1 1.1.2 1.1.3 1.1.4 1.1.5 1.2 1.2.1 1.2.2 CONTEXT AND PROBLEM STATEMENT 11 CONTEXT _ 13 General Presentation of GSM Network 13 The GSM Radio Interface _ 19 Notions on Interferences _ 21 Frequency Planning _ 23 Drive Tests (Radio Measurements) _ 25 Problem Statement 26 Problem description _ 26 Objectives to be attained _ 26 CHAPTER 2: METHODOLOGY 28 2.1 State of the art 30 2.2 Generation of Interference Matrices _ 34 2.2.1 2.2.2 2.2.3 2.2.4 2.2.5 2.3 2.3.1 2.3.2 2.3.3 2.3.4 2.4 2.4.1 2.4.2 2.4.3 Study of Formats of ATOLL Interference Matrices _ 35 Study of Log-files from Drive Tests 42 Cross-compatibility between ATOLL Interference Matrices and TEMS Log-files 43 Transformation of Exported Log-file fields to Interference Matrices _ 44 Evaluation of Generated matrices (Correlation Analyses) _ 47 Automatic Allocation of Cell Identities _ 51 Obtaining list of existing Cell Ids _ 53 Constraints for site being created 56 New mechanism for Cell Id allocation _ 56 Notification 59 Toolkit Designing 59 Toolkit Architecture _ 59 Database Modelling _ 60 Programming languages and tools used _ 61 Design and Implementation of a Toolkit for the Processing of files issued from Radio Measurements and the Automatic Allocation of Cell Ids to New Cells End of course Dissertation written by: CHEFUH DIVINE NGWA – June 2011 Table of Contents CHAPTER 3: RESULTS AND COMMENTS 62 3.1 Results from the application _ 63 Conclusion AND PERSPECTIVES _ 74 Bibliography and Webography _ 75 Annex _ 76 Design and Implementation of a Toolkit for the Processing of files issued from Radio Measurements and the Automatic Allocation of Cell Ids to New Cells End of course Dissertation written by: CHEFUH DIVINE NGWA – June 2011 Introduction INTRODUCTION One of the major worries of a mobile phone operator is to insure a good quality of service to its customers This quality of service is principally linked to parameters which are: good signal coverage and good signal quality But then, interferences arise due to frequency reuse These interferences degrade the signal quality, and hence cause a drop in the quality of service To reduce this, it was required to Design and Implement a toolkit for the processing of files issued from radio measurements and the automatic allocation of Cell Ids to new cells This project tackles two aspects, first supplying data issued from radio measurements into the frequency allocation process This will permit the amelioration of frequency plans and thus reduce interferences The radio measurement data could also serve as input for an interactive interference analyses between couples of cells with the goal of detecting and reducing interferences Reducing interferences will improve on the QoS Secondly to put in place a mechanism for an automatic allocation of cell ids to new cells integrated into the operators’ network This document presents details of all that was done to realise the project The first chapter of the document, Context and Problem statement, describes relevant concepts to the project for a clear understanding Here also, the problem at hand is described with all its details The second chapter, methodology, is where the approach adopted to resolve the problem is described clearly The third chapter, results and comments, shows screen shots of the developed toolkit and comments on the screen shots Design and Implementation of a Toolkit for the Processing of files issued from Radio Measurements and the Automatic Allocation of Cell Ids to New Cells End of course Dissertation written by: CHEFUH DIVINE NGWA – June 2011 10 Results and and Comments Generation of interference matrices Figure 33: Generation of an Interference matrix The labels to are explained below: The list of all the drive test log files that have been uploaded to the server The list of interference matrices already generated from the given log files on the server The name of the matrix takes the name of the log file and concatenates with the time and date of generation They are grouped according to the file formats By passing the mouse cursor over a log file, we have a brief description of it When a log file is clicked, it is selected and can be used to generate an interference matrix Before generating a matrix, an output format has to be chosen Clicking the “GO” button generates the interference matrix with the chosen output format This matrix locates itself with the others that have the same file format as it Design and Implementation of a Toolkit for the Processing of files issued from Radio Measurements and the Automatic Allocation of Cell Ids to New Cells End of course Dissertation written by: CHEFUH DIVINE NGWA – June 2011 66 Results and and Comments Sample generated im0 interference matrix generated from IM_CI Tool Tool: Figure 34: Sample of im0 interference matrix generated from IM_CI Tool This generated matrix can be imported in Atoll There is the possibility to upload a new log file by going to the File menu, then choosing the option Upload File A file name (Title) and brief description (File Description) are required to facilitate usage by subsequent users Figure 35: Upload new log file to server Design and Implementation of a Toolkit for the Processing of files issued from Radio Measurements and the Automatic Allocation of Cell Ids to New Cells End of course Dissertation written by: CHEFUH DIVINE NGWA – June 2011 67 Results and and Comments In IM_CI Tool, there is the possibility to combine multiple log files to generate a single interference matrix Figure 36: Combining multiple log files The labels to are explained below: In the file menu, the user can choose to “Combine Multiple Log files” Then, he can select all the log files to combine for generation of a single interference matrix This selection is done from a list of all the log files on the server After selecting, the user should give a name for the interference matrix that will be generated The user then chooses an output file format for the matrix to generate Finally, clicking the “OK” button will generate the desired output interference matrix Design and Implementation of a Toolkit for the Processing of files issued from Radio Measurements and the Automatic Allocation of Cell Ids to New Cells End of course Dissertation written by: CHEFUH DIVINE NGWA – June 2011 68 Results and and Comments Evaluation of matrices Figure 37: Loading interference matrix for comparison Figure 38: Example Results of evaluation This is an example situation in which there is a low correlation between the drive tests based matrix and the Atoll matrix In such a situation, matrix sources should be investigated to draw conclusions as explained in section 2.2.5 of chapter Design and Implementation of a Toolkit for the Processing of files issued from Radio Measurements and the Automatic Allocation of Cell Ids to New Cells End of course Dissertation written by: CHEFUH DIVINE NGWA – June 2011 69 Results and and Comments Interference Analyses Figure 39: Interactive interference analyses The labels to are explained below: The user can load all the serving cells that were detected during a given drive test Then he can choose a given serving cell from the list The corresponding list of interfering cells is constituted An interferer can be chosen from the list of interferers and for the server-interferer couple, interference analyses can be made There is the possibility to filter only co-channel interferers by choosing the “co” option or only adjacent interferers by choosing the “adj” option For a given server-interferer couple, the user can plot the histogram of C/I ranges This histogram shows different C/I ranges and the percentage of C/I values in each range Consider the example in the figure above The histograms plotted are as in the figure below Design and Implementation of a Toolkit for the Processing of files issued from Radio Measurements and the Automatic Allocation of Cell Ids to New Cells End of course Dissertation written by: CHEFUH DIVINE NGWA – June 2011 70 Results and and Comments C/I values that are less than 12dB (in this case, 100% of the C/I values are less than 12dB) C/I values greater than or equal to 12dB, 0% in this case Figure 40: C/I histograms for server-interferer couple This is an example of a situation where there is a high probability of co-channel interference (Recall that co-channel interference occurs when there are other transmitters emitting in the same frequency band as the serving transmitter such that C/I < 9dB 12dB is considered here because Orange Cameroon has fixed a quality margin of 3dB which when added to the 9dB proposed by the norm gives 12dB) To complete the analyses, supplementary information on the frequency channels of both the serving cell and the interfering cell is given (as shown below) For this case, we see that even though all the C/I samples are below 12dB, the victim and interfering cells have different frequency channels, hence there is no co-channel interference Figure 41: Channel information for frequency analyses Design and Implementation of a Toolkit for the Processing of files issued from Radio Measurements and the Automatic Allocation of Cell Ids to New Cells End of course Dissertation written by: CHEFUH DIVINE NGWA – June 2011 71 Results and and Comments Automatic Cell Id Allocation Used to get the names of the cells in the site Number of cell ids allocated based on this Determines range of values to allocate Also determines range of values to allocate (zone of implantation of site) Confirm choice Figure 42: Input parameters for CI allocation Design and Implementation of a Toolkit for the Processing of files issued from Radio Measurements and the Automatic Allocation of Cell Ids to New Cells End of course Dissertation written by: CHEFUH DIVINE NGWA – June 2011 72 Results and and Comments Cell Ids for the cells of the given site here Correspondence between Cell Ids and Cell names Figure 43: Cell Ids generated for cells of tri-sectorial site Confirming the CI values saves them and gives possibility to mail notification Figure 44: Mailing list Tick the names of individuals to notify and click on the send button Mail notification is done on the newly attributed CI values Design and Implementation of a Toolkit for the Processing of files issued from Radio Measurements and the Automatic Allocation of Cell Ids to New Cells End of course Dissertation written by: CHEFUH DIVINE NGWA – June 2011 73 Conclusion and Perspectives CONCLUSION AND PERSPECTIVES Having arrived at the end of this work, it can be affirmed that, the design and implementation of a toolkit for the processing of files issued from radio measurements and the automatic allocation of cell ids to new cells was done This toolkit named IM_CI Tool permits: the amelioration of frequency plans in GSM and DCS networks (case of Orange Cameroon), the detection of co-channel and adjacent channel interferences between couples of cells via an interactive interference analyses and the automatic attribution of cell identities to new cells that are integrated in the network (of Orange Cameroon) The usage of the IM_CI Tool will result in two comfortable situations; first of all the reduction in interferences in the GSM and DCS networks (of Orange Cameroon) hence an improvement in the quality of service provided to clients and secondly the well structured and organised identification plan for cells hence proper management This work is just a first mile stone among several, since there are other aspects that can be done to ameliorate it These aspects include: Considering other sources for drive test log files (like QVOICE which is also used in Orange Cameroon), since only TEMS Investigation log files where used here Also, proposing local frequency changes to minimise interferences will be very good Finally, offering the possibility for the detection of interferences (co-channel and adjacent channel) caused by signals from the transmitters of other operators will go a long way for the improvement of this work Design and Implementation of a Toolkit for the Processing of files issued from Radio Measurements and the Automatic Allocation of Cell Ids to New Cells End of course Dissertation written by: CHEFUH DIVINE NGWA – June 2011 74 Bibliography and Webography BIBLIOGRAPHY AND WEBOGRAPHY Other Works and Dissertations [1] Atoll User Manual version 2.8.1 [2] Atoll Technical Reference Guide version 2.8.3 [3] Ericsson AB 2007 TEMS™ Investigation 8.1 Information Elements and Events Manual [4] NDEFFO TAKA William “Interface Radio GSM : Résolution du problème d’interférence par la mise en œuvre d’un outil de gestion de fréquence”, ENSP 2005 70p [5] NGAN TAFAM Aron Achille “l’interopérabilité des outils RNO et Atoll” ENSP 5GTEL 2009 110p [6] NGUE Luc Armel “Conception et réalisation d'un outil de planification de fréquences pour optimiser le fonctionnement des cellules du réseau MTN Cameroun”, ENSP 5GTEL 2010 96p [7] Xavier Lagrange, Philippe Godlewski, Sami Tabbane Réseaux GSM 5e Edition revue et augmentée 521p Electronic Documents [8] EFORT, GSM : Global System for Mobile Communications Architecture, Interfaces et Identités, EFORT 2008, http://www.efort.com/r_tutoriels/GSM1_EFORT.pdf [9] M.R.L Hodges, GSM Radio interface, Br Telecom Technol J Vol No January 1990, www.telecom.cpehn.be/doc/fichiers/Hodges.pd [10] R J RUMMEL, THE CORRELETION COEFFICIENT, Honolulu: Department of Political Science University of Hawaii, 1976, http://www.mega.nu/ampp/rummel/uc.htm Design and Implementation of a Toolkit for the Processing of files issued from Radio Measurements and the Automatic Allocation of Cell Ids to New Cells End of course Dissertation written by: CHEFUH DIVINE NGWA – June 2011 75 Annex ANNEX Table 21: Template for exporting TEMS log file Order Information Elements 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 ARFCN BCCH Hopping Cell Name HSN RxLev Sub (dBm) Neighbor Cell Name (Sorted)[1] Neighbor Cell Name (Sorted)[2] Neighbor Cell Name (Sorted)[3] Neighbor Cell Name (Sorted)[4] All-Neighbor Cell Name (Sorted)[5] Neighbor Cell Name (Sorted)[6] Neighbor RxLev (dBm) (Sorted)[1] Neighbor RxLev (dBm) (Sorted)[2] Neighbor RxLev (dBm) (Sorted)[3] Neighbor RxLev (dBm) (Sorted)[4] Neighbor RxLev (dBm) (Sorted)[5] All-Neighbor RxLev (dBm) (Sorted)[6] Neighbor ARFCN (Sorted)[1] Neighbor ARFCN (Sorted)[2] Neighbor ARFCN (Sorted)[3] Neighbor ARFCN (Sorted)[4] Neighbor ARFCN (Sorted)[5] Neighbor ARFCN (Sorted)[6] Hopping List Hardware Configuration For proper functioning, the application needs the following minimum hardware configuration: Processor of at least 1.5GHz At least 1GB of RAM Minimum free space on disk of 1.5GB Design and Implementation of a Toolkit for the Processing of files issued from Radio Measurements and the Automatic Allocation of Cell Ids to New Cells End of course Dissertation written by: CHEFUH DIVINE NGWA – June 2011 76 Annex Source codes for generation of im1 interference matrices (others are similar) The codes are in PHP