report using fox

Limited InternalREPORT 1 (60)

Prepared (also subject responsible if other) No.

Paddy O’ericsson ERA/R-01:000182 UenApproved Checked Date Rev Reference

FoXy O’toole 12/17/01 A

Frequency OptimizationeXpert (FOX)

Project

CELLCOM WirelessDonegal Area





ABSTRACT

This report describes the work carried out and the results achieved in theFAS/FOX project that was carried out on the CELLCOM Wireless GSM1900network in the Donegal area in September 2001.

The objective of the FAS/FOX project was to find new BCCH frequencies for 23cells within the defined BCCH frequency band of 19 ARFCN channels. Thesecells were using 5 dedicated frequencies that were temporarily borrowed for theTCH frequency band. The effectiveness and accuracy of the FAS/FOXmeasurements in a network such as the CELLCOM Donegal Area network wasalso to be assessed. Recommendations on other Frequency changes that wouldhelp improve the network were also desired.

Before the FAS/FOX recordings were performed, prerequisite work was carriedout at BSC and Network level in an effort to increase the accuracy of theFAS/FOX recordings. This work ranged from Size Alteration Events (SAE)increases, in a number of BSC, to implementation of the new BSIC plan acrossthe whole Donegal Area network. Deciding on the recording cell set as well asthe recording periods for UL and DL measurement retrieval involved a study ofthe traffic and subscribers being served by the reallocation cell set, as well as theterrain surrounding the cells requiring new frequencies.

The recording process took place over a two week period from Monday 10th

through Monday 24th September 2001. The first week involved accumulation ofFAS DL recordings for the generation of an Inter-Cell Dependency Matrix(ICDM). FAS UL recordings, and Percentage Interfered Traffic (PIT) estimationsusing this ICDM, were carried out during the cell busy periods of the secondweek for the reallocation cells. New Frequencies were subsequently found for 22out of the 23 cells.

Comparing Monday 10th to Monday 24thstatistics, the results showed animprovement in Erlang Minutes per Drop in seven out of the 22 cells anddegradation in 11 of the cells by more that 10%. The Speech Quality Index (SQI)level GOOD increased in 12 cells with the SQI level BAD increasing in only 10cells by more that 10 percent. The degradation in performance in the relatedcells was considered acceptable considering the BCCH band was reduced from24 to 20 Frequencies.

A FOX (recommended Mode) reallocation search on Tuesday 25th Septemberpresented 12 BCCH frequency change recommendations for a reallocation cellset including all cell in the DONG0 and DONG1 BSCs. These changes have notyet been implemented.

Other important information on the stability of the FAS UL and DL measurementswas also gathered during the course of the project, showing the effectivenessand accuracy of the FAS/FOX tool in a complex interference environment suchas that that exists in the Donegal area.





TABLE OF CONTENTS

1 INTRODUCTION...........................................................................................................................................5

2 BACKGROUND.............................................................................................................................................5

3 PROJECT OBJECTIVE .................................................................................................................................6

4 FAS/FOX RECORDING PREREQUISITES .....................................................................................................7

4.1 INTRODUCTION .............................................................................................................................................74.2 BSC CONFIGURATION....................................................................................................................................7

4.2.1 BSC Functions ......................................................................................................................................74.2.2 IOG File Structure.................................................................................................................................84.2.3 Frequency File......................................................................................................................................94.2.4 Dynamic Buffer Files..............................................................................................................................94.2.5 STS Object Types & Counters ................................................................................................................ 104.2.6 Activating Printouts ............................................................................................................................. 10

4.3 NETWORK CONFIGURATIONS......................................................................................................................... 114.3.1 FAS/FOX Friendly BSIC Plan................................................................................................................ 114.3.2 CNA Database.................................................................................................................................... 114.3.3 Optimized BA-List (Neighboring Cell Clean-Up) ....................................................................................... 124.3.4 Network Parameter Settings .................................................................................................................. 134.3.5 BSC Consistency Check......................................................................................................................... 13

5 RECORDING AND REALLOCATION CELL SETS....................................................................................... 15

5.1 THE DONEGAL AREA TERRAIN....................................................................................................................... 155.2 REALLOCATION CELL SET............................................................................................................................. 165.3 RECORDING CELL SET.................................................................................................................................. 20

6 PROJECT PROCESS AND RECORDING SETTINGS.................................................................................... 22

6.1 OVERALL PROJECT PROCESS .......................................................................................................................... 226.2 NETWORK REVIEW AND PREPARATION ............................................................................................................ 236.3 FAS DOWNLINK (ICDM) RECORDINGS ........................................................................................................... 23

6.3.1 ICDM (Downlink) Recording Schedule.................................................................................................... 236.3.2 FAS ICDM Recording Parameter Settings................................................................................................ 236.3.3 FAS ICDM Holes................................................................................................................................. 25

6.4 FAS UPLINK STABILITY RECORDINGS ............................................................................................................. 256.5 FAS UPLINK RECORDING & PIT GENERATION .................................................................................................. 26

6.5.1 FAS UL Recording Schedule.................................................................................................................. 266.5.2 FAS UL Recording Parameter Settings.................................................................................................... 28

6.6 FAS UPLINK & DOWNLINK STABILITY & RELIABILITY DATA ANALYSIS ................................................................ 286.6.1 FAS UL &DL Recording Reliability Parameter Settings.............................................................................. 29

6.7 FOX REALLOCATION SEARCH ....................................................................................................................... 296.7.1 FOX Reallocation Search Strategy.......................................................................................................... 296.7.2 FOX Reallocation Search Parameter Settings ........................................................................................... 29

6.8 DATA ANALYSIS & FINAL REPORT.................................................................................................................. 30

7 RESULTS.................................................................................................................................................... 31

7.1 FAS DATA RELIABILITY AND STABILITY .......................................................................................................... 317.1.1 FAS ICDM (Downlink) Data Reliability................................................................................................... 317.1.2 FAS ICDM (Downlink) Data Stability...................................................................................................... 347.1.3 FAS Interference (Uplink) Data Reliability............................................................................................... 357.1.4 FAS Interference (Uplink) Data Stability.................................................................................................. 36





7.2 FAS (UPLINK) & PIT ESTIMATIONS RESULTS................................................................................................... 367.3 FOX REALLOCATION SEARCH RESULTS........................................................................................................... 41

8 CONCLUSION............................................................................................................................................. 44

9 APPENDIX A - REALLOCATION CELL SET PERFORMANCE STATISTICS................................................ 46

10 APPENDIX B - NCELL AUDIT, REALLOCATION CELL SET....................................................................... 50

11 APPENDIX C - MONDAY 17TH ICDM REALLOCATION CELLS’ HOLES .................................................... 53

12 APPENDIX D - MONDAY 10TH FAS UPLINK RESULTS................................................................................ 55

13 APPENDIX E - MONDAY 17TH FAS UPLINK RESULTS ................................................................................ 56

14 APPENDIX F – BSIC PLAN CHANGES......................................................................................................... 57





1 Introduction

This document presents the results of the FOX Project performed on theCELLCOM GSM 1900 network in the Donegal area in the northwest of IRELAND.FOX was used to allocate BCCH frequencies to a list of 23 cells identified by theCELLCOM RF department.

Frequency Optimization eXpert (FOX) is a frequency optimization tool and is partof the Radio Network Optimization (RNO) support package running on theEricsson Operation Support System (OSS).

2 Background

This FOX Project is part of the overall SHARK spectrum reduction project, takingplace in the CELLCOM network from February through October 2001.

In the Donegal Area CELLCOM have a frequency allocation of 72 FrequencyChannels (ARFCN 613 to 684). A block of 24 frequencies was being used forBCCH planning and 36 frequencies for TCH planning. The remaining 12frequencies were dedicated for BCCH and TCH usage on the bridges in theDonegal area. The spectrum breakdown is shown in Table 1.

NAME FREQUENCIES DETAILS

BCCH BAND 661 – 684 Used only for BCCH frequencies

TCH1 630 – 653 Used for 1st TCH TRX in Cell

TCH2 (Special) 618 – 629 Used for 2nd TCH TRX in Cell

BRIDGE 1 613 – 617 Reserved for Bridges in Letterkenny1

BRIDGE 2 654 – 660 Reserved for Bridges in Letterkenny

Table 1 Donegal Area Frequency Spectrum

As part of the SHARK spectrum reduction project, CELLCOM must vacate 5 MHz(i.e. 24 ARFCN Channels) of RF Spectrum by November 1st 2001. A frequencyplanning strategy was proposed by the CELLCOM Corporate RF EngineerDepartment and implemented by the local Donegal Area RF department’s usingtheir extensive knowledge of the local terrain, cell plan and interferenceenvironment. The Frequency allocation is listed in Table 2.

1 The Bridge frequencies are sometimes used for the 3 rd and 4th TRX in cells that are located a distance from theBridges.





NAME FREQUENCIES DETAILS

BCCH BAND 666 – 684 19 Frequencies used only for BCCH

HOPPING TCH 636 – 660 25 Frequencies used for TCH FLP

BRIDGE BCCH 661-665 5 Frequencies dedicated for Bridge BCCH& Micro cells

Table 2 Reduced Spectrum Frequency Allocation

During implementation of the reduced BCCH frequency plan, the performance ofa number of cells (23) in the DONG0 and DONG1 BSCs fell to an unacceptablelevel. These cells were subsequently retuned to one of the Bridge Frequenciesto maintain an acceptable level of service in the cells.

In this Project the FAS/FOX tool was used to find the best BCCH frequencychannel from the BCCH band to use in the cells that were retuned to the BridgeFrequencies.

3 Project Objective

After the BCCH retune the BCCH frequency band was reduced from 24 to 19frequency channels. Due to poor performance immediately after the retune, 23cells in the Letterkenny City and Ramelton County areas were tuned to cleanfrequencies outside the CELLCOM BCCH block.

The objective of the FAS/FOX project was to find new BCCH frequencies for 23cells within the defined BCCH frequency band of 19 ARFCN channels. Thesecells were using 5 dedicated frequencies that were temporarily borrowed for theTCH frequency band.

As CELLCOM had the FAS/FOX tool for a trial period, the effectiveness andaccuracy of the FAS/FOX measurements in a network such as the CELLCOMDonegal Area network was assessed.

Recommendations on other Frequency changes that would help improve thenetwork were also desired.





4 FAS/FOX Recording Prerequisites

4.1 Introduction

FAS/FOX is a very powerful frequency optimization tool that can be very usefulfor reducing the amount of tedious work carried out by RF Engineers. However,as with any other RF planning or optimization tool, pre-recording preparationwork and checks must be carried out in order to increase the accuracy of theresults from the FAS/FOX tool.

In the following sub-chapters the preparation work and checks that were carriedout at both BSC and Network level are discussed.

4.2 BSC Configuration

4.2.1 BSC Functions

There are two measurement functions in the BSCs that are used for recordingand retrieval of Downlink and Uplink measurements.

For recording and retrieval of Downlink measurements the function Active BA-List Recording (BAR) must activated in each of the BSC. The BAR functionshould always be active in the BSC.

For recording and retrieval of Uplink measurements the function RadioInterference Recordings (RIR) must be activated in each of the BSC. Thestatus of the RIR functions can be checked in the BSC by running the followingMML commands in the WINFOL window.

DBTSP:tab=axepars,name=radiointerc;

A value “1”, in the VALUE field of the printout indicated that the function is active.

Other useful MML print commands that can be used to check the status of theBAR and RIR recordings while in progress have been listed in Table 3.

COMMAND & PARAMETERS DESCRIPTION

RABRP:RID=ALL; RADIO CONTROL ADMINISTRATION ACTIVE BA-LIST RECORDING,PRINT

RABDP:RID=ALL; RADIO CONTROL ADMINISTRATION ACTIVE BA-LIST RECORDINGDEFINITION, PRINT

RARRP:RID=ALL; RADIO CONTROL ADMINISTRATION RADIO INTERFERENCERECORDING, PRINT

RARDP:RID=ALL; RADIO CONTROL ADMINISTRATION RADIO INTERFERENCERECORDING DEFINITION, PRINT

Table 3 BAR & RIR MML Print Commands





For more information on RIR and BAR, please refer to the B-module or contactyour local Switching Engineering manager or the Ericsson FSC support office.

4.2.2 IOG File Structure

The measurements accumulated by the BAR and RIR functions are stored in thesequential files BARFIL00 through BARFIL092 and RIRFIL00 through RIR009files respectively. These files reside in the EXCHVOLUME of the IOG beforebeing transferred to the OSS File store for post processing by the FAS/FOXfunction.

To check if these files have been defined in each of the BSC, the following MMLcommand sequence should be entered at the COMMAND HANDLING window.

INMCT:SPG=0;INFIP:VOL=EXCHVOLUME;END;

Running the following command sequence in the COMMAND HANDLINGwindow can check the size and structure of the files:

INMCT:SPG=0;INFIP:FILE=BARFILXX;INFIP:FILE=RIRFILXX;END;

where XX –is equal to 00 through 09.

The values of the different parameters in the printout should comply with thevalues given in

FILENAME XX RLENGTH SIZE EXP TYPE FCLASS

RIRFIL 00-09 512 500 200 SEQ CMP

BARFIL 00-63 512 2000 600 SEQ CMP

Table 4 BAR and RIR Sequential File size and structure

If the files are not set according to the size and structure just discussed, pleasecontact your local Switching Engineering manager or the Ericsson FSC support-office.

2 Please note that the number of files represents the number of simultaneous recordings that can be carried out in theBSC. For example, BAR09 through BARFIL09 means that 10 simultaneous BAR recording can be activated in a BSC.This number may vary from operator to operator.





4.2.3 Frequency File

BAR recordings can sometimes fail due to insufficient memory allocation in theFrequency file. The frequency file is used to temporarily store test frequenciesfor the cells in the recording cell set during a BAR recording.

Running the following command sequence in the COMMAND HANDLINGwindow can check the size and structure of the files.

SAAEP:SAE=533, BLOCK=ROBAR;

The NI field in the printout should be greater than or equal to the following:

NI >= Number of CELLs * Number of TEST FREQUENCIES

It is difficult to estimate the exact number of test frequencies as it will differ fromcell to cell, depending on the frequency set being used and the number offrequencies in each cell’s BA list. Therefore a safety margin should be added toallow for this. For example if there is 150 cells in a BSC and the estimatedaverage number of test frequencies in 50, a safe value for NI would be of 10000.

For more information on Frequency Files, please refer to the B-module or contactyour local Switching Engineering manager or the Ericsson FSC support office.

4.2.4 Dynamic Buffer Files

Each of the BSC functions discussed in chapter 4.2.1, as well as the MRRfunction, require working memory allocation. This working memory allocation iscalled Dynamic Buffers Files and takes the form of Size Alteration Events (SAE)in the BSC.

BSC FUNCTION SAE350 SAE351 SAE354

BAR 10 10 -

RIR 20 - 10

MRR 20 - -

TOTAL 50 10 10

Table 5 Buffer File Memory Allocation

To check if the size of the Dynamic Buffer files in the BSC, the following MMLcommand sequence should be entered at the COMMAND HANDLING window.

SAAEP: SAE=XXX;

where XXX is equal to 350, 351 or 354.





For each of the SAEs, the value of the NI field of the printout should be greaterthan or equal to the total values in Table 5.

For more information on Dynamic Buffer Files, please refer to the B-module orcontact your local Switching Engineering manager or the Ericsson FSC supportoffice.

4.2.5 STS Object Types & Counters

The Statistics and Traffic Measurements Subsystem (STS) is the subsystem thatis used for collection and pre-processing of statistics counters in the EricssonBSCs. The STS resides in the IOG on the BSC. Object Types are definedentities within the STS that represent a group of counters that relate to specificobjects in the BSC. For example, the object type CELTCHF contains all the fullrate traffic counters relating to each of the CELL objects, as defined in the BSC.

The following object types and Counters are used by FAS/FOX and should beactivate in the BSC.

APPLICATION OBJECT TYPE COUNTERS

FAS/FOX CELTCHF TFTRALLAC, TFNSCAN

Table 6 Object Types & Counters

To check if the definition of the CELTCHF object type in the BSC, the followingMML command sequence should be entered at the COMMAND HANDLINGwindow.

IMLIT:SPG=0;SDDOP: AREA=OPER, OBJTYPE=CELTCHF, LIST;END;

A YES value in the INCL field indicates that this object type has been included inthe STS data collection. The CNTNAME and CNTDES fields provide informationon the counters that are included in the object type.

For more information on STS, please refer to the B-module or contact your localSwitching Engineering manager or the Ericsson FSC support office.

4.2.6 Activating Printouts

Printouts generated by BSC functions contain information on file transfer. Theseare used by RNO for deciding when the different recordings are ready for filetransfer to the OSS. Printouts that are generated by the BSC functions RIR, BARand MRR fall under printout category 69. To check if printouts in category 69 arerouted to the OSS, the following MML command should be entered in theCOMAND HANDLING window.

IOROP;





The printouts categories are listed in the PRCA field and the IO devices to whichthey are routed are listed in the IO field.

For more information on activating printouts, please refer to the B-module orcontact your local Switching Engineering manager or the Ericsson FSC supportoffice.

4.3 Network Configurations

4.3.1 FAS/FOX Friendly BSIC Plan

The NCS/NOX and FAS/FOX applications in RNO put more stringentrequirements on the BSIC planning than that used in the GSM network forlocating purposes. This is mainly because of the Probable Cell Name (PCN)algorithm, which is primarily based on distance between two cell locations. ThePCN algorithm is used to identify interferers (in FAS/FOX’s case) or neighboring(in NSC/NOX’s case).

As a FAS/FOX example, consider two interfering cells that are the same distance(e.g. 10 kms) from a victim cell but are 20 km apart from each other. Thedistance between the interferers is fine for normal locating purposes, but it is notFAS/FOX-Friendly. FAS/FOX will have problems determining which cell isinterfering with the victim with the simple distance algorithm being used.

In order to decrease the probability of incorrect/doubtful PCN decisions, the BSICplan for the Donegal Area GSM network was reviewed.

Firstly cells within the same BSC and across BSC borders were allocated aunique BCCH-BSIC combination. Secondly, in different BSCs the distancebetween cells that reused the same BCCH/BSIC combinations was kept to amaximum. e.g. cells in FANAD0 BSC in the north Donegal and LETTE0 in theSouth Donegal would use the same BCCH/BSIC combinations.

The new BSIC allocations for the Donegal Area Network can be seen in Table 24of chapter 14 Appendix F.

4.3.2 CNA Database

It is important that the following information is up-to-date in the Cellular NetworkAdministration (CNA) database:

• Site Latitude and Longitude coordinates

• Antenna Types set to OMNI or SECTOR

• Antenna Directions (Azimuth)





This information is used in the Probable Cell Name (PCN) algorithm fordetermining the probable interferers. As the PCN algorithm is position anddirection based, it will be impossible to determine the interferers if this data ismissing.

The CELLCOM Donegal Area CNA database was updated with Latitude andLongitude coordinates, Antenna Types and Antenna Direction information for allthe BSCs from the TCP databases on the 30th August 2001.

4.3.3 Optimized BA-List (Neighboring Cell Clean-Up)

To ensure BAR recording efficiency and to maximize the number of downlinksamples received for each BCCH frequency, it is important to have an optimalBA-list.

The BAR function adds a defined number of test frequencies3 to the BA list ofeach cell for a given period of time. When this period has elapsed, thesefrequencies are removed and a new set of test frequencies is added to the ActiveBA list until all test frequencies have been in the Active BA list. This process isrepeated for the duration of the FAS/FOX recording period. Therefore if the BA-list has been optimized each of the test frequencies spend more time in theactive BA list and therefore produce more accurate results.

A Neighboring cell audit was carried out in July 2001 for all BSCs in the DonegalArea. Approximately 3000 neighboring cell relations were recommended fordeletion. The following criteria were used when assessing the validity of theneighboring cell relation.

• Only Bothway Neighboring Cell Relations were considered

• Valid Statistical data for at least 25 days in a 30 day test period was available

• There was less that 100 handover attempts in both directions

• HO attempts from the Source Cell to the Target Cell were less than 2% of allHOs from the source cell

• HO attempts from the Source Cell to the Target Cell were less than 2% of allHOs to the target cell

This list of Neighboring cell deletions was sent to CELLCOM RF management on2nd August 2001.

3 Test Frequencies are the BCCH frequencies that are not already included in a cell’s active BA-list from the completeset of network BCCH frequencies.





A Neighboring cell audit was carried out on the Reallocation Cell Set using NOXon 3rd/4th September 2001. Neighboring cell additions were only recommendedin one direction for the recording period. The NCS recording failed to retrieve thehandover data for the recording period. Therefore the CELLCOM 15-dayhandover report was used to assess the NCELL deletions. Another NCSrecording was initiated for Tuesday and Wednesday the 4th and 5th of September.However the NCS recording failed and the NCELL additions from the firstrecording were recommended to the CELLCOM Engineers.

The NCELL Additions and Deletions that were recommended to the CELLCOMRF Engineers from this audit are listed in Appendix B of this report.

4.3.4 Network Parameter Settings

NCCPERM

The NCCPERM parameter defines the allowed NCCs on the BBCH carriers forwhich the MSs are permitted to send in measurement Reports (MRs). Hence allNCCs used in the network should be included in the NCCPERM parameter fieldfor all cells in the recording cell set.

When a neighboring cell change is made using CNA, CNA will automaticallyupdate the NCCPERM to include ONLY the NCCs of the defined neighbors.Therefore the NCCPERM field must be updated to include all NCCs used in thenetwork.

The NCCPERM parameter was reviewed in the CELLCOM Donegal Area BSCsand updated to include all NCCs on the 30th August 2001.

CHALLOC

If CHALLOC is set to BCCH preference, this can impact the number of samplesthat can be collected for the RIR. A fully utilized BCCH TRX will only be able tomeasure interference during idle SACCH periods whereas the TCH TRXes canmeasure during the idle time slots. For FAS UL data to be considered valid theminimum number of UL samples is recommended to be greater than or equal to500.

In the CELLCOM Network CHALLOC is set to no preference so this does notpresent a problem. The recording period for the FAS UL recordings was set toensure enough UL samples were gathered during the recording.

4.3.5 BSC Consistency Check

A CNA consistency check should be carried out on all BSCs in the FAS/FOX thathave cells in the reallocation cell set. This is to make sure that noinconsistencies exist in the BSCs that would affect the accuracy of the FAS/FOXrecording.





A CNA consistency check was carried out on the DONG0, DONG1 and FANAD0BSCs on 31st August 2001. No inconsistencies that would affect the accuracy ofthe FAS/FOX measurement data were found.





5 Recording and Reallocation Cell Sets

5.1 The Donegal Area Terrain

The Donegal Area is divided into 4 areas: North Donegal, West Donegal, EastDonegal and South Donegal. The land structure can be described as taking abowl shape sloping from North, East and West Donegal towards the water.

MAP OF DONEGAL AREA

Figure 1 Donegal Area

The North Donegal area comprises of hilly terrain, which slopes down towardsthe water when approaching the Donegal. Therefore sites that are located closeto the water are susceptible to and cause interference from/to the East Donegaland the Letterkenny City Area.





The South Donegal Area comprises relatively flat terrain and is susceptible tointerference from sites located on the southern half of the East and WestDonegal.

East and West Donegal assume a bowl shape slopping down from the ridgestowards the Donegal. On the West Donegal, Sites covering the N2 Motorwaylocated on the high ridge, as well as the sites on the lower area closer to thewater are susceptible to interference from Sites located on the high ridges on theEast Donegal. This is also the case for the Sites located on the Easy Donegal.

5.2 Reallocation Cell Set

The Reallocation Cell Set is defined as the set of cells that require new frequencyallocation recommendations from FOX.

MAP OF THE AREA with REALLOCATION CELL SET

Figure 2 Reallocation Cell Set

In the DONG0 and DONG1 BSCs 23 cells are on clean BCCH frequencies thatare not within the BCCH block, ARFCN 666 to 684. These 23 cells constitute theREALLOCATION CELL SET and are listed in Table 7.



Brian Sweeney XXXXXXXXXApproved Checked Date Rev Reference

Sanjay Ambekar/ Gunnar Larsson 12/17/01 A

SITE INFO

CELL COVERAGE AREA(Traffic Type)

Busy Period TRX / BH Traffic Elevation Height(AntennaCentreline)

No. ofNeighbors

Terrain /Clutter

DL069A N2 Motorway intersection with Major Rd 35(Atlantic Drive)

1600 – 1900 2 TRX / 5 Erl 472 Ft 44 ft 17 Site located a hill in area surrounded byHilly Terrain. Quite exposed.

DL069B Layer 3 cell serving N2 Motorway intersection withMajor Rd 35 (Atlantic Drive)

1600 – 1900 1 TRX/ 0.2 Erl 472 Ft 44 ft 8 Site located a hill in area surrounded byHilly Terrain. Quite exposed.

DL097B Serves section of N2 Motorway 1600 – 1900 1 TRX / 2 Erl 568 Ft 47 Ft 11 Errigal Mountain on West of site andquite exposed to Donegal on the East

DL070A Serves Major Rd 35 (Atlantic Drive Bvd) North ofintersection with N2 Motorway. Atlantic Drive Bvdused as feeder Rd to N2 Motorway.

1600 – 1900 2 TRX / 6 Erl 495 Ft 25 Ft 15 Site located a hill in area surrounded byHilly Terrain. Quite exposed.

DL070B Serves Major Rd 35 (Atlantic Drive) North ofintersection with N2 Motorway. Atlantic Drive Bvdused as feeder Rd to N2 Motorway.


DL077B Major Rd N4 running onto the Ramelton Bridgebut also local Business offices and hotels

2000 – 2300 4 TRX / 22 Erl 26 Ft 72 Ft 15 Site is exposed to interference fromNorth, South and East. hilly terrainlocated to the West of the site

DL077C Major Rd N4 running onto the Ramelton Bridgebut also local Business offices and hotels

2000 – 2300 4 TRX / 22 Erl 26 Ft 72 Ft 21 Site is exposed to interference fromNorth, South and East. hilly terrainlocated to the West of the site

DL043C Serves area around intersection of Motorway N2and N3. Major Rd 82 (Railway Rd) andsurrounding Business districts

1600 – 1900 4 TRX / 28 Erl 13 Ft 70 Ft 32 Site is very exposed to interference fromNorth, South and East. hilly terrainlocated to the West of the site

DL074A Serves the Intersection of Motorway N2 and MajorRd 35 (Atlantic Drive Bvd)


DL011B Serves the I80 Motorway coming off the DonegalBridge and surrounding area, which isLetterkenny Business District.

12:00 - 1500 4 TRX /20 Erl 56 Ft 183 Ft 24 Located in the Letterkenny businessdistrict serving the N2 Motorway comingoff the Donegal Bridge.





SITE INFO



No. ofNeighbors

Terrain /Clutter

DL145A Small cell serving street Downtown Letterkenny.Omni Antenna used.

15:00 - 1600 1 TRX / 5 Erl 13 Ft 13 Ft 18 Serves Urban area located in theLetterkenny business district.

DL270B Micro cell serving street downtown businessdistrict of Letterkenny

15:00 – 1600 2 TRX/ 9 Erl 13 Ft 21 Ft 23 Serves Urban area located in theLetterkenny business district.

DL144B Micro cell serving street downtown businessdistrict of Letterkenny

2000 – 2300 2 TRX /5 Erl 43 Ft 17 Ft 13 Serves Urban area located in theLetterkenny business district.

DL038B Serves local Residential and small Businessdistricts and Major Rd 82

2000 – 2300 4 TRX / 21 Erl 266 Ft 75 Ft 15 Located in valley hilly terrain. Cellshooting towards hills

DL038C Serves Major Rd 82 traffic but also localResidential and small Business districts

2000 – 2300 4 TRX / 30 Erl 266 Ft 75 Ft 21 Located in valley hilly terrain. Cellshooting towards hills

DL057A Serves Major Rd 35 (Atlantic Drive Bvd) 1500 – 1600 1 TRX / 0.5 Erl 197 Ft 29 Ft 12 Fairly flat terrain sloping towards PacificCoast

DL055A Layer 3 cell serving Major Rd 35 (Atlantic DriveBvd) and local residential area

2000 – 2300 4 TRX / 29 Erl 650 Ft 39 Ft 25 Site located on top of hill looking into avalley. Exposed to interference from alot of neighboring cells

DL056A Serves Major Rd 35 (Atlantic Drive Bvd) and localresidential area

2000 – 2300 4 TRX / 24 Erl 715 Ft 13 Ft 21 Site located on top of hilly ridge lookinginto a valley. Exposed to interferencefrom a lot of neighboring cells

DL056B Serves Major Rd 35 (Atlantic Drive Bvd) and localresidential area


DL059B Serves Major Rd 35 (Atlantic Drive Bvd) and localresidential area


DL061A Serves Major Rd 35 (Atlantic Drive Bvd) and localresidential area






SITE INFO



No. ofNeighbors

Terrain /Clutter

DL064B Residential Area between N2 and I101 Motorways 2000 - 2300 4 TRX / 30 Erl 167 Ft 52 Ft 8 Site located in a valley and protected byridge to the south and east.

DL303C Serves I101 Motorway from Golden Gate Bridgeto the North Donegal.

1530 – 1630 2 TRX 1.5 Erl 558 Ft 54 Ft 10 Site is located on hill and is veryexposed to Letterkenny city and EastDonegal

Table 7 Reallocation Cell Set





5.3 Recording Cell Set

The Recording Cell set is defined as the set of cells upon which a recordingactivity is performed. When defining a recording cell set for a particular FAS/FOXrecording activity, all cells that are interferers to or victims of interference fromany of the cells in the reallocation cell set should be included in the recording cellset.

It is recommended to run a FAS ICDM pre-recording defining all cells in theBSCs that the reallocation cell set are parented off, as the recording cell set.This will allow the engineer to:

• Retrieve information on the interferers and victims of interference for all cellsin the reallocation cell set from the ICDM produced by a FAS downlinkrecording. This will allow the engineer to accurately define the recording cellset for the FAS/FOX recording activities.

• Identify the halted cells in the BSCs4. Halted cells should be excluded fromthe recording as FAS/FOX will exclude any halted cells and their definedneighbors from the recording.

In this project, a number of cells in the reallocation cell set are located along theMajor Rd 35 and Motorway 280 on the West Donegal. These Motorways runalong an elevated ridge which slopes downwards towards the Donegal.Therefore these cells are susceptible to interference and victims of interferencefrom cells on the East side of the Donegal as well as the west. Therefore it isnecessary to include the cells on the East Donegal in the recording cell set. Thefollowing BSCs around the Donegal area were included in the RECORDINGCELL SET : DONG0, DONG1, LETTE0, LETTE1, BALLY1, BALLY0, BUND0 andBUND1. The BSC serving areas can been seen in Figure 3.

4 Halted cells for each BSC can also be identified by entering the following MML command in the COMMANDHANDLING window: RLSTP: CELL=ALL, STATE=HALTED;





MAP OF BSC AREAS IN DONEGAL AREA

Figure 3 BSC Serving Areas in the Donegal Area





6 Project Process and Recording Settings

6.1 Overall Project Process

The overall process for the FAS/FOX project is shown in Figure 4.

Network Review& Preparation

FAS Downlink(ICDM) Recordings

(Recording Cell Set)

FAS Uplink Stability Recording

(Recording Cell Set)

FAS Uplink & DownlinkStability & ReliabilityData Analysis

FAS Uplink Recording& PIT Generation(Recording Cell Set)

FOX ReallocationSearch(Reallocation Cell Set)

Data Analysis& Final Report

FAS UL MeasurementsDay2Day ComparisonBH2BH ComparisonFAS UL Validity Report

FAS DL (ICDM) MeasurementsDay2Day ComparisonBH2BH ComparisonFAS DL (ICDM) Validity Report

FAS Stability ResultsFAS UL dB Stability LimitsFAS DL PIT Stability Limits

FAS DL ICDM

FAS UL Frequency ReportFAS DL PITNew Frequencies for Cells

2 Weeks 1 Week 2/3 Days 1/2 Days 1 Weeks

Figure 4 Overall FAS/FOX Project Process





6.2 Network Review and Preparation

The BSC and Network Configurations issues discussed in chapters 4.2 and 4.3respectively were reviewed and all changes were carried out over a two-weeknetwork preparation period.

6.3 FAS Downlink (ICDM) Recordings

6.3.1 ICDM (Downlink) Recording Schedule

As the downlink recordings retrieve measurements from active BA list recordings,it is recommended to run the ICDM downlink recordings during the busy periodsfor the cells in the reallocation cell set. The following time periods were identifiedas being the busiest periods in the CELLCOM network.

RecordingPeriod

STARTTIME

STOPTIME

TRAFFIC TYPE

P1 08:00 10:00 Morning Motorway Commuters

P2 11:00 14:00 Lunchtime Business

P3 16:00 19:00 Evening Motorway Commuters

P4 20:00 23:00 Residential Night Time

Table 8 DL Recording Periods

Most of the cells in the reallocation cell set have their busy periods during P3 orP4, which can be seen in Table 7.

In order to collect enough downlink samples, it was decided to run the downlinkrecordings over 4 working days, Monday 10th through Thursday 13th September.Friday was not possible as the OSS upgrade from R8.1 to R8.2 was taking placeon Friday night.

The ICDMs for the different days were accumulated to form a complete ICDM (forthe reallocation cell set) to be used for the PIT generation.

6.3.2 FAS ICDM Recording Parameter Settings

FAS/FOX uses the following formulae when calculating the downlink PITbetween each victim and interferer cell relation.

ICresholdforlativeSSThservSSbsicfSS /Re)(),( +>

ACresholdforlativeSSThservSSbsicfSS /Re)(),( +>





Where

SS (f, bsic) is the signal strength of the interferer

SS (serv) is the signal strength of the serving cell

RelativeSSThresholdforC/I is the relative signal strength threshold for adjacentchannel interference. This parameter was set to -12 dB for the CELLCOMProject, as the BCCH frequency plan was being optimized.

RelativeSSThresholdforC/A is the relative signal strength threshold for adjacentchannel interference. This value was set to +6 dB for the CELLCOM Project.

If the criteria above have been met a counter MRrel is incremented. A co-channel and adjacent channel cell-to-cell interference relationship is thenrepresented by MRrel(%), calculated as follows:

%100*(%)MRtotMRrel

MRrel =

Where

MRrel is the number of measurement reports received when a certainfrequency/BSIC combination was reported stronger than the sum of the servingcell and the adjacent- or co-channels relative thresholds.

MRtot is the total number of measurements reports received when the relatedfrequency was included in the victim cells active-BA list.

Other parameter settings used in the ICDM downlink recordings are shown inTable 9.

PARAMETER VALUE DETAILS

Relative SS Threshold C/I -12 dB See chapter 6.3.2

Relative SS Threshold C/A +6 dB See chapter 6.3.2

BA List Change Interval 10 Determines the length of the segments that a recordingthat a set of test frequencies remain in the active BA list.

No. of Test Frequencies to addat each interval

5 No of test frequencies to be added to the active BA list foreach BA List Change Interval.

Cell Set RecordingCell Set

Uplink interference measurements carried out on thecomplete Recording Cell Set

Table 9 PIT Estimation related parameters





6.3.3 FAS ICDM Holes

An ICDM-relation that cannot be measured is known as a hole. ICDM holes area result of the BCCH carrier being the same in the victim and interferer cells. Inorder to fill these holes, one of the cells (victim or interfere) must be temporarilyretuned to a different BCCH frequency so that a cell-to-cell relationship can beestablished. As the cells in the reallocation cell set were on 5 clean BCCHfrequencies, filling the ICDM holes (only for the cells in the reallocation cell set)between co-BCCH cells was not a major problem.

After the Monday recording periods the ICDM was examined to identify the holes.Temporary BCCH frequencies for the cells were chosen in consultation with theCELLCOM RF Engineers using the Monday Uplink recordings and PIT(Incomplete) estimations as a guideline.

6.4 FAS Uplink Stability Recordings

The FAS UL recordings were also run in parallel during the FAS ICDM recordingactivities during the week Monday 10th through Thursday 13th September. Therecording periods are shown in Table 10.

DAY RECORDINGPERIODS

RECORDINGACTIVITIES

RECORDING

Monday P1, P2, P3 & P4 Single Recording with 4recording periods

Tuesday P1, P2, P3 & P4 Single Recording with 4recording periods

P1 (0800 – 1000) Single Recording with 1recording periods



Wednesday

P4(2000 – 2300) Single Recording with 1recording periods

Thursday P1, P2, P3 & P4

MRR, FAS ICDM(DL) & FAS UL

Single Recording with 4recording periods

Table 10 FAS DL & UL Recording Activities

The FAS UL results for the Monday and Thursday recording days were useddetermine the possible fluctuations in FAS UL measurements from day-to-day.The FAS UL results from recording periods P3 and P4 on Wednesday were usedto determine the possible fluctuations in FAS UL measurements from BusyPeriod to Busy Period.





6.5 FAS Uplink Recording & PIT Generation

6.5.1 FAS UL Recording Schedule

For the uplink measurements a percentile value specifies the RXLEV value toreport from the recorded interference distribution for each of the frequencies inthe frequency set. If too many uplink samples are collected at low-interferenceperiods, the percentile interference value may be skewed. Therefore it isnecessary to only run the uplink recordings during peak interference time for thereallocation cell set.

As the cells in the reallocation cell set have busy periods at different times, FASUL recordings had to be run over three different periods as shown in Table 11.

CELLSRECORDING

PERIODSTARTTIME

STOPTIME

TRAFFIC TYPE

DL011B P2 11:00 14:00 Lunchtime Business

DL043C, DL057A, DL069A,DL069B, DL070A, DL070B,DL074A, DL097B, DL145A,DL270B, & DL303C

P3 16:00 19:00 Evening MotorwayCommuters

DL038B, DL038C, DL055A,DL056A, DL056B, DL059B,DL061A, DL064B, DL077B,DL077C, & DL144B

P4 20:00 23:00 Residential NightTime

Table 11 Uplink Recording Periods

The FAS Uplink recordings were run over the time periods listed in Table 11 onMonday 17th September. The accumulated ICDM generated from the previousweek’s downlink recordings was used for the PIT estimations.

The results of the FAS UL recordings and PIT Generation were then used tomanually select BCCH frequencies from the 19 BCCH frequency band for eachcell in the reallocation cell set.

The FAS UL cell reports for cells DL069B and DL056A can be seen in Figure 5and Figure 6 respectively. It can be seen that changing the BCCH frequency inDL069B has a potential improvement in downlink performance by reducing thePIT from 1.42% to 0.00%. However in cell DL056A the performance is expectedto degrade by an increase of PIT from 0.23 to 1.43 when the frequency ischanged from ARFCN 664 to 677.

The Monday 17th FAS UL cell reports for the other cells in the reallocation cell setcan be found in chapter 13, Appendix E.





Figure 5 Monday 17th FAS Cell Report for DL069B

Figure 6 Monday 17th FAS Cell Report for DL056A





6.5.2 FAS UL Recording Parameter Settings

The FAS UL parameter settings used in the recordings and for estimation of thePercentage Interfered Traffic (PIT) are listed in Table 24.


Percentile Interference 95% Percentile interference that represents the idle channelinterference on each measured frequency

Frequency Set 661-665, 666-684

BCCH Frequencies being used in the West Donegal

Adjacent FrequencyInterference Contribution

100 Adjacent Frequency Interference Contribution (100 meansfull contribution)

Base Station PowerControl Reduction

80 PIT reduction for TCH frequencies if Base Station PowerControl is being used in the cell. (100 means no reduction)

DTX InterferenceReduction

50 PIT reduction for TCH frequencies that DTX is being usedin the cell. (100 means no reduction)

Co-Channel PITCompleteness

First OrderNeighbors

PIT contributions must be received from all First OrderNeighbors in order for the PIT to be considered complete

Adjacent-Channel PITCompleteness

First OrderNeighbors

PIT contributions must be received from all First OrderNeighbors in order for the PIT to be considered complete

Traffic Load used for PITEstimation

FULL TRAFFICLOAD

Assumed Traffic load for PIT Estimations

Cell Set Recording CellSet

Uplink interference measurements carried out on thecomplete Recording Cell Set

Table 12 PIT Estimation related parameters

6.6 FAS Uplink & Downlink Stability & Reliability Data Analysis

The FAS ICDM and FAS UL recording results collected from Monday 10th

through Thursday 13th September were analyzed to determine the stability andreliability of the recording results. The following stability analysis was carried out:

• FAS UL day-to-day Data Stability Analysis - examine fluctuations in FASUL measurements from day to day using FAS UL recordings from Monday10th & Thursday 13th September.

• FAS UL Busy Period to Busy Period Data Stability Analysis - examinefluctuations in FAS UL measurements from day to day using FAS ULrecordings from Monday 10th & Thursday 13th September.

• FAS ICDM DL Data Stability Analysis examine fluctuations in ICDM-C (%)and ICDM-A (%) measurements number of different values of Mrtot usingFAS ICDM recordings from Monday 10th through Thursday 13th September.

• FAS Uplink Data Validity (Reliability) Report – Examination of the FAS ULdata reliability using the FAS UL Data Validity Report.





• FAS (ICDM) Downlink Data Validity (Reliability) Report - – Examination ofthe FAS UL data reliability using the FAS ICDM Data Validity Report.

The results of FAS UL and ICDM Stability data analysis was used to set the FOXsearch criteria parameter setting discussed in chapter 6.7.

6.6.1 FAS UL &DL Recording Reliability Parameter Settings

The FAS ICDM & UL parameter settings used in the data reliability validation arelisted in Table 13.


FAS ICDM ValidityCounter

10 000 Minimum Number of DL Samplesrequired for valid day

FAS UL Validity Counter 500 Minimum Number of UL Samples

Minimum ConsideredICDM element

0.1% ICDM elements less that or equal to0.1% not taken into account in FOXreallocation search

Table 13 FAS ICDM and UL Data Reliability Parameter Settings

6.7 FOX Reallocation Search

6.7.1 FOX Reallocation Search Strategy

The reallocation cells were tuned to BCCH Frequencies manually chosen fromthe FAS UL and PIT Estimations recordings run of Monday 17th September. Inorder to check if these BCCH frequencies were the best Frequencies from the 19BCCHs a new FAS UL and PIT Estimation recording was run as well as a FOXReallocation Search.

The frequency set was now reduced to the 19 BCCH group and a FOX(recommended mode) recording was activated on Tuesday 25th September. Thisinvolved running another FAS UL recording during the P3 and P4 recordingperiods. The ICDM used was the accumulated ICDM from the Monday 10th

through Thursday 13th recording periods. The FOX reallocation searchparameter settings, which were set using the stability analysis of the UL and DLmeasurements (see chapter 7.1) are shown in Table 14.

6.7.2 FOX Reallocation Search Parameter Settings

PARAMETER VALUE

UPLINK INTERFERENCE IMPROVEMENT WHEN DOWNLINK PIT IS COMPLETE

Minimum Required Uplink Interference Improvement (dB) 3.2 dB

Maximum Acceptable downlink PIT Impairment (Percentage Units) 1%

UPLINK INTERFERENCE IMPROVEMENT WHEN DOWNLINK PIT IS INCOMPLETE





PARAMETER VALUE

Minimum Required Uplink Interference Improvement (dB) 5 dB

Maximum Acceptable downlink PIT Impairment (Percentage Units) 1%

DOWNLINK PIT IMPROVEMENT

Minimum Required Downlink PIT Improvement (Percentage Units) 3%

Maximum Acceptable Uplink Interference Impairment (dB) 1 dB

Table 14 FOX Reallocation Parameter Settings

Spacing Matrix

The Spacing Matrix used for the FOX reallocation search is shown in Table 15.

Type of Frequency/Cell Own Co-Site Neighbor

BCCH-BCCH N/A 2 1

BCCH-TCH Combiner Spacing 1 1

TCH-TCH Combiner Spacing 1 0

Table 15 Spacing Matrix

Barring Matrix

The Barring Matrix was not used in this project.

6.8 Data Analysis & Final Report

The results of the frequency changes and recording results were examined anddetailed in this report. Project prerequisites, the Recording Process andParameter Settings, Data Stability and Reliability Results as well as the networkperformance results were all described in the report.





7 Results

7.1 FAS Data Reliability and Stability

7.1.1 FAS ICDM (Downlink) Data Reliability

FAS ICDM Holes

After the Monday recording periods the ICDM was examined to identify the holesfor the cells in the reallocation cell set. The holes identified are listed in Table 23in Appendix C, chapter 11. The BCCH frequencies of the cells listed in Table 16were changed on Tuesday 11th after two days recording. This would allow thesereallocation cell holes to be filled by accumulating the Monday and TuesdayICDMs with Wednesday and Thursday ICDMs.

CURRENT BCCH PLAN RETUNED BCCHFREQUENCIES

CELL BSCFREQ BSIC FREQ BSIC

DL038C DONG0 665 31 669 00

DL055A DONG0 663 55 664 1

DL056B DONG1 662 53 684 21

DL057A DONG0 664 66 663 11

DL059B DONG1 663 43 676 70

DL061A DONG1 665 54 672 40

DL069A DONG1 661 67 671 10

DL077B DONG1 662 02 681 20

DL077C DONG1 664 03 665 00

DL144B DONG0 678 77 664 02

DL270B DONG0 662 70 664 4

DL303C FANAD0 661 11 683 36

Table 16 BCCH Frequency Changes on Tuesday 11th

Temporary BCCH frequencies for the cells were chosen in consultation with theCELLCOM RF Engineers using the Monday Uplink recordings and PIT(Incomplete) estimations as a guideline.

Seven out of the 12 cells that were retuned to new BCCHs frequencies werechosen were from the block of 19. An example is cell DL059B, which was onclean BCCH frequency 662 and retuned to ARFCN 676. An improvement indownlink PIT of 1.04 % was also seen. The FAS UL Cell Report for DL059B isshown in Figure 7.





Figure 7 Cell DL059B Monday FAS UL Report

The FAS UL Cell reports for the other cells listed in Table 16 can be seen inappendix D, chapter 12.

FAS ICDM Minimum Number of Counts

The minimum number of counts for the interferer to be considered valid andremain in the ICDM was set to 10000. After the ICDM for the 4 days recordingswere accumulated, the DL validity report was examined for the reallocation cellset. The interferers that were considered invalid as the number of counts wasbelow 10000 are listed in Table 17. ICDM-C(%) elements below 5 % werefiltered from the table.





BSC/ Victim Victim No.of TRXs

BSC/ Interferer ICDM-C(%) ICDM-A(%) Counts

DONG0/DL057A 1 DONG0/DL031C 9.81 0.36 275

DONG1/DL069B DONG0/DL042B 66.66 0 24

DONG1/DL069B DONG1/DL083B 52.53 9.73 493

DONG1/DL069B DONG1/DL079A 51.28 51.28 39

DONG1/DL069B DONG1/DL053B 41.66 0 24

DONG1/DL069B DONG1/DL100B 41.02 7.69 39

DONG1/DL069B DONG1/DL116B 35.44 0.46 869

DONG1/DL069B DONG0/DL271B 32.29 0 353

DONG1/DL069B DONG1/DL138A 31.03 0 29

DONG1/DL069B DONG1/DL108A 12.06 9.43 7559

DONG1/DL069B DONG1/DL078B 8.55 5.09 9803

DONG1/DL069B DONG1/DL088B 7.69 0 39

DONG1/DL069B DONG1/DL080B 7.69 0 39

DONG1/DL069B DONG1/DL099A 6.6 0 106

DONG1/DL069B

1

DONG1/DL080C 5.66 0 106

DONG1/DL070A 2 FANAD0/DL491B 5.94 0 2893

DONG1/DL074A 1 DONG1/DL083B 19.53 1.9 5922

DONG1/DL097B DONG1/DL073C 17.35 1.96 9160

DONG1/DL097B DONG1/DL113B 14.7 1.63 9160

DONG1/DL097B DONG0/DL153B 12.88 2.16 1296

DONG1/DL097B DONG0/DL025A 7.87 2.39 1296

DONG1/DL097B BALLY1/LY041C 7.43 0.23 3039

DONG1/DL097B BALLY0/LY016C 7.37 0.16 4204

DONG1/DL097B DONG1/DL080C 6.73 0 2629

DONG1/DL097B DONG0/DL031B 6.32 2.77 1296

DONG1/DL097B BALLY0/LY011C 6.04 0 5163

DONG1/DL097B DONG1/DL096C 5.78 0 3802

DONG1/DL097B

1

DONG1/DL180B 5.29 3.81 3097

FANAD0/DL303C BALLY0/LY011A 17 0 1788

FANAD0/DL303C FANAD0/DL360C 9.18 1.04 4995

FANAD0/DL303C BALLY0/LY306C 7.47 0 1297

FANAD0/DL303C FANAD0/DL360B 7.05 0.49 6803

FANAD0/DL303C

2

BALLY0/LY376B 6.82 0 3924

Table 17 Invalid ICDM-C(%) and ICDM-A (%) Elements





In Table 17 it can be seen that most of the victim cells (excluding DL070A andDL303C) have one TRX. Assume that the cell carries 3 Erlang of traffic duringthe DL Recording periods, this amounts to 6 MRs/sec. In order to accumulate10000 MRs, the minimum recording period would be 1667 secs.

The DL measurements were taken over 4 recording periods over 4 dayamounting to 44 hours, as can be seen in Table 8. This amounts to 158400recording seconds. Assume that 90% of this is efficient recording time amountsto 142 560 secs.

There are 24 BCCHs (19+5) frequencies being used on the West Donegal area.Assume an average number of 15 neighbors per cell (i.e. 15 Frequencies in theActive BA list), this will leave 9 test frequencies to be added during the recordingperiods. The maximum number of test frequencies to add was set to 5. Thismean each of the test frequencies will have at least 71 280 secs in the active BAlist.

For the ICDM-C(%) and ICDM-A(%) elements to be considered valid thefrequency needs to be reported at least 2.34% (1667/71280*100%) of theefficient recording time.

7.1.2 FAS ICDM (Downlink) Data Stability

In order to set stable potential improvement and allowable degradation FOXreallocation search PIT settings, the stability of the downlink data must beassessed. To assess the stability of the downlink ICDM data the differences inthe ICDM-C(%) and ICDM-A(%) elements for ICDMs collected at differentperiods from Monday 10th through Thursday 13th.

The Mean and Standard deviation of the difference in ICDM-C(%) and ICDM-A(%) element values are shown in Table 18 and Table 19 for the reallocation cellset and recording cell set respectively.

ICDM1 ICDM2 MeanICDM-C(%)

Delta

StandardDeviation

ICDM-C(%)

MeanICDM-A(%)

Delta

StandardDeviation

ICDM-A(%)

Tuesday P1 Tuesday P1+P2 -0.06 1.14 0.01 0.32

Tuesday P1(Counts > 10000)

Tuesday P1+P2(Counts > 10000)

-0.03 0.88 0.01 0.18

Tuesday P1+P2 Tuesday P2+P3+P4 -0.02 1.22 0.00 0.41

Tuesday P1+P2(Counts > 10000)

Tuesday P1+P2+P3+P4(Counts > 10000)

0.01 0.65 0.01 0.16

Wednesday P2 Wednesday P3 0.03 2.93 0.00 0.46

Wednesday P2(Counts > 10000)


0.00 1.44 -0.01 0.40

Wednesday P3 Wednesday P4 0.05 3.43 0.01 0.39



0.03 1.95 0.01 0.29

Tuesday Thursday 0.11 2.38 0.02 0.63





Tuesday(Counts > 10000)

Thursday(Counts > 10000)

0.10 1.14 0.01 0.26



0.08 1.07 0.01 0.27

Table 18 Reallocation Cells ICDM Data Stability Results

ICDM1 ICDM2 MeanICDM-C(%)

Delta

StandardDeviation

ICDM-C(%)

MeanICDM-A(%)

Delta

StandardDeviation

ICDM-A(%)

Tuesday Thursday 0.03 2.34 0.00 0.45



0.03 1.53 0.00 0.23



0.02 1.36 0.00 0.20

4 Days Accumulated Tuesday 0.00 1.45 0.00 0.27

4 Days Accumulated(Counts > 10000)


0.00 0.92 0.00 0.13



0.00 0.82 0.00 0.11

4 Days Accumulated Thursday -0.02 1.20 0.00 0.27



-0.01 0.72 0.00 0.11



0.00 0.62 0.00 0.10

Table 19 Complete ICDM Data Stability Results

From the mean and standard deviation figures presented in Table 18 and Table19, it was decided that a FOX potential PIT improvement setting of 3% (two timesthe standard deviation of 1.45 + the mean of 0.00).

7.1.3 FAS Interference (Uplink) Data Reliability

The reliability of the Uplink data is governed by the parameter “MinumumRequired number of samples”, which was set to 500 for this project. The FAS ULData Validity report in the RNO recording results window lists all cells that havenot accumulated the required number of Uplink Samples.

This report was checked for all reallocation cells or other cells affected by apossible frequency change before the frequency change was to be implemented.No change was carried out if the number of UL samples was less that therequired 500.





7.1.4 FAS Interference (Uplink) Data Stability

In order to set stable potential improvement and allowable degradation FOXreallocation search UL Interference settings, the stability of the Uplink data mustalso be assessed. To assess the stability of the uplink interference data thedifferences in the elements for ICDMs collected at different UL recording periodsfrom Monday 10th through Tuesday 25th.

The Mean and Standard deviation of the difference in UL Recording Periods thatwere compared with each other are shown in Table 20 for the reallocation andrecording cell sets.

Recording Cell Set Reallocation Cell Set

Recording 1 Recording 2

Mean ULInterference

Delta

StandardDeviation

Mean ULInterference

Delta

StandardDeviation

Monday 10th Thursday 13th -0.02 1.19 0 0

Wednesday 12th P3 Wednesday 12th P4 -0.05 1.41 0.26 1.22

Tuesday 25th P3 Tuesday 25th P4 0.07 1.52 0.09 0.29

Table 20 FAS UL Recordings Stability Results

From the mean and standard deviation figures presented in Table 20, it wasdecided that a FOX potential PIT improvement setting of 3.2 dB (two times thestandard deviation of 1.52 + the mean of 0.07)

7.2 FAS (Uplink) & PIT Estimations Results

The BCCH Frequency changes resulting from the FAS UL recordings on Monday17th were closely examined by the CELLCOM RF engineer and managerresponsible for the DONG0 and DONG1 BSC area using the TCP cell andfrequency planning tool and their local knowledge of the area. It was decided toimplement the remaining frequency changes, as listed in Table 21 and Table 22,over Wednesday 19th and Thursday 20th respectively.

CURRENT BCCH PLAN RETUNED BCCH FREQUENCIES

CELL BSC FREQ BSIC FREQ BSIC

DL011B DONG0 662 00 668 00

DL057A DONG0 663 11 666 66

DL069B DONG1 663 44 669 77

DL070A DONG1 662 32 666 32

DL070B DONG1 664 40 683 42

DL074A DONG1 665 61 684 77

DL097B DONG1 661 66 670 66

DL145A DONG0 665 70 668 11







DL270B DONG0 664 04 674 31

DL303C FANAD0 683 36 668 54

Table 21 Wednesday 19th Frequency Changes



DL038B DONG0 661 55 666 66

DL055A DONG0 664 01 682 71

DL056A DONG1 664 55 677 03

DL057A DONG0 666 66 673 60

DL064B DONG0 664 60 677 10

DL077C DONG1 665 00 671 30

DL144B DONG0 664 02 678 13

DL043C DONG1 663 70 - -

Table 22 Thursday 20th Frequency Changes

The MRR Comparison Charts in Figure 8 and Figure 9 show the change inpercentage of Measurement Reports (MR) with RXQUAL DL and UL with valuesgreater (worse) than 4 for the P3 and P4 recording periods for all cells in thereallocation cell set.

The MRR Trend Graphs in Figure 10 and Figure 11 the show the change inpercentage of Measurement Reports (MR) with RXQUAL DL and UL with valuesgreater (worse) than 4 for the P3 and P4 recording periods. In Figure 10 onlycells that have their peak in the P3 recording period are considered. In Figure 11only cells that have their peak in the P4 recording period are considered.





Figure 8 P3 MRR Comparison Chart

Figure 9 P4 MRR Comparison Chart





Figure 10 P3 Cells MRR Trend Graph





Figure 11 P4 Cells MRR Trend Graph





One cell that was of concern to the CELLCOM Engineers and accounted for a lotof the dip in performance was DL145A. It was being interfered by DL011B, asthey were both tuned to BCCH ARFCN 668. Using the FAS UL recording fromThursday 20th it was decided to retune DL145A to BCCH ARFCN 666. At thesame time it was necessary to retune DL282B from BCCH ARFCN 666 to 683 toreduce the downlink interference in DL145A. This can be seen in Figure 12.This change was carried out on Monday 24th.

Figure 12 Thursday 20th FAS UL Cell Report for DL145A

7.3 FOX Reallocation Search Results

When all reallocation cells (excluding DL043C) were tuned to the 19 BCCHfrequencies a FOX reallocation search was carried out on Tuesday 25th. TheFOX parameter settings were set as shown in Table 14. The FOX resultproduced no Frequency change recommendations for the cells in the reallocationcell set, indicating that the best frequency from the 19 was tuned in each cell.

The FOX reallocation cell set was then increased to include all cells in theDONG0 and DONG1 BSCs. The FOX reallocation search results can be seen inFigure 13 and Figure 14, prioritized for UL and DL performance improvementrespectively.





Figure 13 FOX BCCH Frequency Recommendations (Prioritise UL PIT Improvement)





Figure 14 FOX BCCH Frequency Recommendations (Prioritise DL PIT Improvement)





8 Conclusion

The primary objective of the FAS/FOX project was to find new BCCH frequenciesfor 23 cells within the defined BCCH frequency band of 19 ARFCN channels.These cells were using 5 dedicated frequencies that were temporarily borrowedfor the TCH frequency band.

This objective was met for 22 out of the 23 cells with the cell DL043C remainingon a clean frequency due to possible unacceptable performance degradation inthe area.

Comparing the statistics gathered on Monday 10th (Start of Project) and Monday24th (End of Project), the results showed an improvement in Erlang Minutes perDrop in seven out of the 22 cells and degradation in 11 of the cells by more that10%. These results as well as the dropped call statistics are shown in chapter 9Appendix A.

The Speech Quality Index (SQI) level GOOD increased in 12 cells with the SQIlevel BAD increasing in only 10 cells by more that 10 percent. The SQI statisticsare also shown in chapter 9 Appendix A.

The degradation in performance was deemed acceptable in the 22 cells that hadfrequency changes and their neighbors, considering the BCCH band wasreduced from 25 to 20 frequencies.

Another objective of the project was to assess the effectiveness and accuracy ofthe FAS/FOX measurements in a network such as the CELLCOM Donegal Areanetwork.

Important information was gathered during the analysis of the FAS UL and DLrecordings during FAS/FOX project. The stability tests showed the standarddeviation (SD) for FAS DL measurements decreased with the increase in thenumber of samples recorded. Comparing the ICDM-C(%) elements for a 4 dayaccumulated ICDM and the ICDM for Thursday 13th showed a SD of 1.45percentage units for the compete ICDM. This compared to 0.82 percentage unitsfor an ICDM with all elements generated from greater than 40000 counts. TheSD for ICDM-A(%) elements, which had a +6dB relative SS threshold levelshowed much lower deviation levels, suggesting that the tool is more stable forhigher levels of signal strength.

The SD values resulting from busy period to busy period comparisons weresomewhat higher suggesting a change in the traffic and interference patterns inthe network at different periods during the day.

The Stability tests on the FAS UL measurements showed a SD of maximum 1.5dB. These data stability results provided very useful information when decidingon the parameter settings for the FOX reallocation search.





A FOX (recommended Mode) reallocation search on Tuesday 25th Septemberpresented 12 BCCH frequency change recommendations for a reallocation cellset including all cell in the DONG0 and DONG1 BSCs. These changes have notbeen implemented.

In conclusion, this project has shown that the FAS/FOX tool can be usedeffectively and accurately to optimize the frequency plan in a complexinterference environment such as the Donegal area. The project has also shownthat frequency planning and optimization that is based on real networkmeasurements can produce results where predication based planning toolsstruggle to do so.





9 Appendix A - Reallocation Cell Set Performance StatisticsCELL PERIOD DATE No of Drops Drop Rate Erlang Minutes % SS % Quality % TA % Sud. Loss % Other Reasons

010910 18 1.04% 160.27 38.89% 22.22% 0.00% 38.89% 0.00%

010917 11 0.77% 243.71 63.64% 0.00% 0.00% 27.27% 9.09%

DL011B P2

010924 17 1.06% 160.09 76.47% 5.88% 0.00% 17.65% 0.00%

010910 56 2.69% 67.43 67.86% 3.57% 0.00% 25.00% 3.57%

010917 66 3.66% 57.45 68.18% 4.55% 0.00% 18.18% 9.09%

DL038B P4

010924 58 3.53% 62.40 68.97% 1.72% 0.00% 20.69% 8.62%

010910 41 1.91% 130.85 56.10% 2.44% 0.00% 36.59% 4.88%

010917 39 1.68% 134.92 35.90% 7.69% 0.00% 38.46% 17.95%

DL038C P4

010924 42 2.63% 127.51 64.29% 14.29% 0.00% 19.05% 2.38%

010910 112 3.92% 43.42 58.04% 12.50% 0.00% 19.64% 9.82%

010917 95 4.20% 48.45 64.21% 12.63% 2.11% 11.58% 9.47%

DL055A P4

010924 122 5.22% 38.22 64.75% 9.84% 0.82% 13.11% 11.48%

010910 27 1.49% 141.41 81.48% 0.00% 0.00% 18.52% 0.00%

010917 56 3.12% 75.44 66.07% 7.14% 0.00% 19.64% 7.14%

DL056A P4

010924 19 1.25% 173.20 89.47% 0.00% 0.00% 10.53% 0.00%

010910 40 2.18% 127.95 45.00% 15.00% 0.00% 17.50% 22.50%

010917 65 3.55% 74.52 64.62% 9.23% 0.00% 13.85% 12.31%

DL056B P4

010924 50 2.50% 99.44 46.00% 14.00% 0.00% 22.00% 18.00%

010910 0 0.00% 999.00 0.00% 0.00% 0.00% 0.00% 0.00%

010917 0 0.00% 999.00 0.00% 0.00% 0.00% 0.00% 0.00%

DL057A P3

010924 0 0.00% 999.00 0.00% 0.00% 0.00% 0.00% 0.00%

010910 5 1.64% 194.83 60.00% 20.00% 0.00% 20.00% 0.00%

010917 7 3.15% 93.93 42.86% 28.57% 0.00% 28.57% 0.00%

DL059B P4

010924 3 1.28% 214.50 100.00% 0.00% 0.00% 0.00% 0.00%

010910 13 0.75% 264.54 61.54% 0.00% 0.00% 38.46% 0.00%

010917 17 1.21% 207.29 70.59% 5.88% 0.00% 23.53% 0.00%

DL061A P4

010924 18 1.22% 228.15 55.56% 16.67% 0.00% 27.78% 0.00%

010910 41 1.72% 124.06 63.41% 2.44% 0.00% 34.15% 0.00%

010917 49 2.30% 107.19 53.06% 2.04% 0.00% 44.90% 0.00%

DL064B P4

010924 65 3.33% 79.28 83.08% 1.54% 0.00% 15.38% 0.00%

010910 38 12.88% 13.57 76.32% 10.53% 0.00% 13.16% 0.00%

010917 16 11.76% 18.49 75.00% 18.75% 0.00% 6.25% 0.00%

DL069A P3

010924 6 4.20% 46.94 50.00% 16.67% 0.00% 16.67% 16.67%

010910 5 38.46% 3.23 100.00% 0.00% 0.00% 0.00% 0.00%

010917 14 70.00% 1.48 100.00% 0.00% 0.00% 0.00% 0.00%

DL069B P3

010924 8 36.36% 4.69 100.00% 0.00% 0.00% 0.00% 0.00%





010910 10 4.31% 34.03 70.00% 0.00% 0.00% 30.00% 0.00%

010917 9 3.56% 50.93 66.67% 0.00% 0.00% 33.33% 0.00%

DL070A P3

010924 9 3.78% 54.76 77.78% 11.11% 0.00% 11.11% 0.00%

010910 8 3.11% 50.50 75.00% 0.00% 25.00% 0.00% 0.00%

010917 7 2.58% 52.57 42.86% 0.00% 28.57% 28.57% 0.00%

DL070B P3

010924 12 4.69% 33.60 50.00% 0.00% 50.00% 0.00% 0.00%

010910 5 6.58% 33.70 80.00% 0.00% 0.00% 20.00% 0.00%

010917 9 10.00% 18.19 88.89% 0.00% 0.00% 11.11% 0.00%

DL074A P3

010924 10 10.20% 16.97 100.00% 0.00% 0.00% 0.00% 0.00%

010910 25 1.85% 129.81 72.00% 0.00% 16.00% 12.00% 0.00%

010917 17 1.29% 195.63 82.35% 0.00% 11.76% 5.88% 0.00%

DL077B P4

010924 35 2.95% 101.00 71.43% 2.86% 5.71% 20.00% 0.00%

010910 14 1.13% 214.20 78.57% 14.29% 0.00% 7.14% 0.00%

010917 17 1.58% 166.07 88.24% 0.00% 0.00% 5.88% 5.88%

DL077C P4

010924 28 2.05% 105.52 78.57% 7.14% 0.00% 14.29% 0.00%

010910 10 7.52% 22.17 70.00% 0.00% 0.00% 30.00% 0.00%

010917 5 3.94% 45.33 60.00% 0.00% 0.00% 40.00% 0.00%

DL097B P3

010924 18 15.00% 11.96 77.78% 16.67% 0.00% 5.56% 0.00%

010910 9 1.98% 77.13 55.56% 0.00% 0.00% 44.44% 0.00%

010917 12 3.30% 43.75 16.67% 25.00% 0.00% 58.33% 0.00%

DL144B P4

010924 7 2.32% 87.86 42.86% 0.00% 0.00% 57.14% 0.00%

010910 1 0.54% 254.00 0.00% 0.00% 0.00% 100.00% 0.00%

010917 1 0.46% 374.67 100.00% 0.00% 0.00% 0.00% 0.00%

DL145A P3

010924 8 3.85% 42.29 75.00% 25.00% 0.00% 0.00% 0.00%

010910 12 1.73% 91.12 50.00% 8.33% 0.00% 41.67% 0.00%

010917 7 1.21% 139.21 57.14% 0.00% 0.00% 42.86% 0.00%

DL270B P3

010924 2 0.46% 330.75 50.00% 0.00% 0.00% 50.00% 0.00%

010910 5 8.62% 19.00 40.00% 20.00% 0.00% 40.00% 0.00%

010917 2 7.14% 47.33 100.00% 0.00% 0.00% 0.00% 0.00%

DL303C P3

010924 6 15.38% 14.03 0.00% 16.67% 0.00% 66.67% 16.67%





CELL PERIOD DATE TSQI_Good TSQI_Accept TSQI_Bad

DL011B 010910 89.40% 9.70% 0.89%

010917 89.52% 9.73% 0.75%

P2

010924 89.02% 9.88% 1.10%

DL038B 010910 88.81% 9.36% 1.83%

010917 89.17% 9.20% 1.63%

P4

010924 89.93% 8.37% 1.70%

DL038C 010910 90.57% 8.14% 1.29%

010917 92.41% 6.47% 1.11%

P4

010924 91.96% 6.85% 1.18%

DL055A 010910 86.00% 11.23% 2.77%

010917 88.44% 8.98% 2.58%

P4

010924 88.22% 8.99% 2.79%

DL056A 010910 96.74% 2.65% 0.61%

010917 97.61% 1.81% 0.57%

P4

010924 97.21% 2.26% 0.53%

DL056B 010910 90.21% 7.93% 1.86%

010917 89.12% 8.49% 2.39%

P4

010924 89.84% 8.17% 2.00%

DL057A 010910 94.44% 5.27% 0.29%

010917 88.14% 11.63% 0.23%

P3

010924 86.01% 13.29% 0.70%

DL059B 010910 88.45% 10.82% 0.73%

010917 91.09% 7.85% 1.07%

P4

010924 89.10% 10.11% 0.78%

DL061A 010910 95.43% 4.04% 0.53%

010917 96.74% 2.87% 0.40%

P4

010924 96.69% 2.91% 0.40%

DL064B 010910 88.50% 10.03% 1.47%

010917 87.33% 10.47% 2.20%

P4

010924 87.49% 10.30% 2.20%

DL069A 010910 82.80% 14.34% 2.86%

010917 86.28% 12.10% 1.62%

P3

010924 85.11% 13.83% 1.06%

DL069B 010910 62.01% 29.61% 8.38%

010917 59.68% 24.73% 15.59%

P3

010924 80.00% 15.34% 4.66%

DL070A P3 010910 93.97% 4.11% 1.92%





010917 93.98% 4.33% 1.69%

010924 89.50% 7.47% 3.04%

DL070B 010910 93.20% 5.49% 1.31%

010917 92.69% 5.90% 1.41%

P3

010924 89.72% 7.89% 2.38%

DL074A 010910 81.63% 17.94% 0.42%

010917 81.48% 17.87% 0.66%

P3

010924 82.12% 17.21% 0.67%

DL077B 010910 92.49% 6.02% 1.50%

010917 92.72% 6.06% 1.23%

P4

010924 91.89% 6.56% 1.55%

DL077C 010910 93.12% 5.74% 1.14%

010917 92.65% 6.31% 1.04%

P4

010924 90.53% 8.01% 1.46%

DL097B 010910 81.99% 16.81% 1.20%

010917 79.53% 19.10% 1.38%

P3

010924 78.77% 19.67% 1.56%

DL144B 010910 93.63% 5.58% 0.79%

010917 92.68% 6.56% 0.76%

P4

010924 92.15% 6.64% 1.21%

DL145A 010910 90.08% 9.78% 0.13%

010917 91.43% 8.41% 0.16%

P3

010924 90.43% 9.33% 0.25%

DL270B 010910 89.51% 9.41% 1.08%

010917 90.78% 8.48% 0.74%

P3

010924 90.66% 8.62% 0.72%

DL303C 010910 76.55% 20.86% 2.59%

010917

P3

010924 79.92% 17.90% 2.18%





10 Appendix B - NCELL Audit, Reallocation Cell Set

NCELL Additions

CELL NCELL BA ListTime(min)

No. ofMeasurement

Reports

ReportsAbove Rel.

SS Threshold(%)

ReportsRankedas No. 1

(%)

AverageSS when

No. 1(dBm)

AFTERTCPREVIEW

DL011B DL022B 550 513651 1.27 2 -85.5 NO

DL038B DL128C 885 1338022 1.24 0.85 -92.5 NO

DL038B DL055B 885 1338022 1.09 2.9 -93.5 NO

DL043C DL083B 957 2465271 1.44 5.65 -92.5 NO

DL057A DL038A 400 10711 1.17 0.53 -82.5 YES

DL070B DL113B 490 134503 1.06 5.29 -93.5 NO

DL074A DL083B 300 13603 3.43 16.97 -92.5 YES

DL144B DL015A 885 354352 3.39 0.52 -72.5 YES

DL144B DL024B 885 354352 1.03 0.3 -73.5 NO

DL145A DL153A 490 77144 2.12 0.43 -76.5 YES

DL270B DL152A 957 135263 1.09 1.55 -76.5 NO

DL069A DL083B 885 259390 3.74 10.51 -87.5 YES

DL069A DL182A 885 259390 1.58 1.91 -89.5 NO

DL069A DL113B 735 214917 1.21 5.73 -90.5 NO

DL069A DL180B 885 259390 1.17 1.02 -88.5 NO

DL069A DL182B 885 259390 1.03 1.16 -90.5 NO

DL069B DL083B 300 2346 12.28 18.76 -86.5 YES

DL069B DL116B 295 1931 3.63 9.89 -90.5 NO

DL069B DL113B 290 2381 1.18 1.34 -94.5 NO





NCELL Deletions

SOURCE CELL NDAYS NCELL HOATTTOT HOFAILTOT %HOFAIL

DL038B 14 DL045A 23 18 78.26

DL045A 14 DL038B 6 3 50

DL038B 14 DL053A 15 3 20

DL053A 14 DL038B 23 5 21.74

DL038B 14 DL090B 5 3 60

DL090B 14 DL038B 15 7 46.67

DL038C 14 DL045A 19 10 52.63

DL045A 14 DL038C 5 1 20

DL038C 14 DL053A 2 2 100

DL053A 14 DL038C 9 4 44.44

DL057A 15 DL016C 11 2 18.18

DL016C 15 DL057A 13 2 15.38

DL055A 15 DL183C 12 10 83.33

DL183C 15 DL055A 8 7 87.5

DL145A 15 DL146B 3 1 33.33

DL146B 15 DL145A 0 0 0

DL145A 15 DL015B 1 0 0

DL015B 15 DL145A 3 2 66.67

DL270B 5 DL023A 4 0 0

DL023A 15 DL270B 25 18 72

DL270B 5 DL123B 2 0 0

DL123B 15 DL270B 0 0 0

DL270B 5 DL010B 0 0 0

DL010B 15 DL270B 0 0 0

DL270B 5 DL011C 0 0 0

DL011C 15 DL270B 3 2 66.67

DL270B 5 DL023C 0 0 0

DL023C 15 DL270B 2 2 100

DL144B 15 DL252A 26 21 80.77





DL252A 15 DL144B 18 8 44.44

DL144B 15 DL150B 5 0 0

DL150B 15 DL144B 15 4 26.67

DL144B 15 DL252B 4 2 50

DL252B 15 DL144B 9 7 77.78

DL144B 15 DL150A 0 0 0

DL150A 15 DL144B 6 3 50

DL056A 15 DL063C 4 0 0

DL063C 15 DL056A 3 1 33.33

DL056A 15 DL070B 2 2 100

DL070B 15 DL056A 5 5 100

DL056A 15 DL074A 0 0 0

DL074A 15 DL056A 2 2 100

DL059B 15 DL043C 25 25 100

DL043C 15 DL059B 14 14 100

DL069A 15 DL185A 0 0 0

DL185A 15 DL069A 0 0 0

DL070B 15 DL185A 0 0 0

DL185A 15 DL070B 0 0 0

DL043C 15 DL185B 7 1 14.29

DL185B 15 DL043C 6 2 33.33

DL074A 15 DL115B 4 0 0

DL115B 15 DL074A 28 8 28.57

DL074A 15 DL185A 0 0 0

DL185A 15 DL074A 0 0 0

DL303C 15 LY371C 5 0 0

LY371C 15 DL303C NOTDEFINED





11 Appendix C - Monday 17th ICDM Reallocation Cells’ Holes

The BCCH frequencies of the cells highlighted in BOLD text in Table 23 werechanged on Tuesday 11th after two days recording. This would allow thesereallocation cell holes to be filled by accumulating the Monday and TuesdayICDMs with Wednesday and Thursday ICDMs.

Victim Cell Interferer ICDM-C(%) ICDM-A(%) CountsDONG0/DL011B DONG0/DL270B 0DONG0/DL038C DONG1/DL061A 0DONG0/DL038C DONG1/DL074A 0DONG0/DL055A DONG1/DL043C 0DONG0/DL055A DONG1/DL059B 0DONG0/DL057A DONG1/DL056A 0DONG0/DL144B DONG0/DL005A 0DONG0/DL144B DONG0/DL005B 0DONG0/DL144B DONG0/DL007A 0DONG0/DL144B DONG0/DL010B 0DONG0/DL144B DONG0/DL012B 0DONG0/DL144B DONG0/DL013A 0DONG0/DL144B DONG0/DL015A 0DONG0/DL144B DONG0/DL015B 0DONG0/DL144B DONG0/DL015C 0DONG0/DL144B DONG0/DL017A 0DONG0/DL144B DONG0/DL017B 0DONG0/DL144B DONG0/DL017C 0DONG0/DL144B DONG0/DL018A 0DONG0/DL144B DONG0/DL018C 0DONG0/DL144B DONG0/DL019A 0DONG0/DL144B DONG0/DL022A 0DONG0/DL144B DONG0/DL022B 0DONG0/DL144B DONG0/DL022C 0DONG0/DL144B DONG0/DL023C 0DONG0/DL144B DONG0/DL024B 0DONG0/DL144B DONG0/DL025A 0DONG0/DL144B DONG0/DL029A 0DONG0/DL144B DONG0/DL029C 0DONG0/DL144B DONG0/DL031A 0DONG0/DL144B DONG0/DL031B 0DONG0/DL144B DONG0/DL035A 0DONG0/DL144B DONG0/DL036A 0DONG0/DL144B DONG0/DL064A 0DONG0/DL144B DONG0/DL120A 0DONG0/DL144B DONG0/DL144A 0DONG0/DL144B DONG0/DL145B 0DONG0/DL144B DONG0/DL150A 0DONG0/DL144B DONG0/DL150B 0DONG0/DL144B DONG0/DL152A 0





Victim Cell Interferer ICDM-C(%) ICDM-A(%) CountsDONG0/DL144B DONG0/DL154A 0DONG0/DL144B DONG0/DL155C 0DONG0/DL144B DONG0/DL252B 0DONG0/DL144B DONG0/DL267A 0DONG0/DL144B DONG0/DL282A 0DONG0/DL144B DONG0/DL282B 0DONG0/DL270B DONG0/DL011B 0DONG0/DL270B FANAD0/BC490A 0DONG1/DL056B DONG1/DL070A 0DONG1/DL061A DONG0/DL038C 0DONG1/DL061A DONG1/DL074A 0DONG1/DL069A DONG1/DL097B 0DONG1/DL069B DONG1/DL043C 0DONG1/DL069B DONG1/DL059B 0DONG1/DL070A DONG1/DL056B 0DONG1/DL074A DONG0/DL038C 0DONG1/DL074A DONG1/DL061A 0DONG1/DL077B LETTE1/BC070A 0DONG1/DL077B BALLY1/LY044A 0DONG1/DL077C LETTE1/BC070A 0DONG1/DL077C DONG1/DL070B 0DONG1/DL097B DONG1/DL069A 0FANAD0/DL303C BALLY0/LY371A 0

Table 23 ICDM Reallocation Cells’ Holes from Monday 17th





12 Appendix D - Monday 10th FAS Uplink Results

RNO Screen Shots containing Monday 10th FAS UL Reports taken out





13 Appendix E - Monday 17th FAS Uplink Results

RNO Screen Shots containing Monday 17th FAS UL Reports taken out





14 Appendix F – BSIC Plan ChangesBSC CELL NCC BCC

RAME0 DL593A 3 2

RAME0 DL838A 7 1

FANAD0 DL433A 3 0

FANAD0 DL471A 7 2

FANAD0 RA908A 4 4

FANAD0 DL491C 1 5

FANAD0 DL493B 4 6

FANAD0 DL348B 2 7

FANAD0 DL325C 5 7

FANAD0 DL391A 2 1

FANAD0 BC401A 6 2

FANAD0 DL386C 3 3

FANAD0 RA902C 7 4

FANAD0 RA911B 0 5

FANAD0 DL322C 6 6

FANAD0 DL403B 5 6

FANAD0 DL407A 2 6

FANAD0 DL467B 1 0

FANAD0 DL365B 6 1

FANAD0 DL437B 4 1

FANAD0 DL343C 3 1

FANAD0 DL422A 3 2

FANAD0 DL381B 0 2

FANAD0 DL372A 6 2

FANAD0 DL405B 4 2

FANAD0 DL404B 6 3

FANAD0 RA913A 7 3

FANAD0 RA901B 6 5

FANAD0 DL374A 6 6

FANAD0 DL407B 0 6

FANAD0 DL467A 3 6

FANAD0 RA907A 1 6





BSC CELL NCC BCC

FANAD0 RA906C 0 7

FANAD0 DL433C 3 7

FANAD0 DL422B 5 0

FANAD0 DL400C 5 1

FANAD0 DL375B 1 1

FANAD0 DL378B 6 2

FANAD0 DL481B 5 3

FANAD0 RA914B 4 3

FANAD0 DL376A 4 4

FANAD0 DL449A 0 5

FANAD0 DL432B 4 5

FANAD0 DL486A 2 5

FANAD0 DL368A 4 5

FANAD0 DL479C 4 6

FANAD0 DL397C 1 7

FANAD0 DL309B 2 0

FANAD0 DL487C 6 0

FANAD0 DL408B 7 2

FANAD0 DL373B 2 7

FANAD0 DL375C 1 0

FANAD0 DL385A 7 1

FANAD0 RA911C 7 3

FANAD0 RA901A 7 5

FANAD0 DL439A 0 6

FANAD0 DL479B 0 3

FANAD0 DL408A 0 4

FANAD0 DL477B 0 4

FANAD0 DL349A 3 4

FANAD0 DL376B 4 4

FANAD0 DL374B 4 5

FANAD0 DL388A 4 7

DONG1 DL077B 1 2

DONG1 DL113A 0 7

DONG1 DL045C 3 1





BSC CELL NCC BCC

DONG1 DL172A 7 4

DONG0 DL048C 1 4

DONG0 DL010B 6 4

DONG0 DL027C 6 6

DONG0 DL152A 3 2

DONG0 DL035A 5 3

DONG0 DL157A 0 4

SNC11C0 DL891B 3 0

BUND1 LY204B 7 5

BUND0 LY 0109B 4 1

BUND0 LY164B 3 6

BUND0 LY100C 3 5

BUND0 LY108C 5 0

BUND0 LY284A 7 3

BUND0 LY106B 2 4

BUND0 LY149B 7 4

BUND0 LY114C 4 6

BUND0 LY383B 3 3

BUND0 LY290B 7 1

BUND0 LY073C 7 2

BUND0 LY073B 3 2

BUND0 LY240A 6 6

BUND0 LY104C 0 6

BUND0 LY105C 3 6

BUND0 LY101C 7 7

BUND0 LY101A 3 7

BUND0 LY262B 4 0

BUND0 LY352B 7 2

BUND0 LY128B 2 2

BUND0 LY253C 2 3

BUND0 LY267B 4 3

BUND0 LY114A 2 4

BUND0 LY149C 4 4

BUND0 LY149A 0 4





BSC CELL NCC BCC

BUND0 LY103A 3 6

BUND0 LY106A 3 6

BUND0 LY289B 7 6

BUND0 LY267A 1 7

BUND0 LY102A 4 1

BUND0 LY102B 2 1

BUND0 LY110A 3 1

BUND0 LY076B 2 2

BUND0 LY100B 2 3

BUND0 LY116A 7 1

BUND0 LY104B 4 4

BUND0 LY128A 1 5

BUND0 LY352C 3 7

BALLY1 LY024B 3 0

BALLY1 LY092B 7 0

BALLY1 LY092A 3 1

BALLY1 LY046A 1 2

BALLY0 LY319C 7 3

BALLY0 LY062A 2 3

BALLY0 LY084A 0 7

BALLY0 LY309A 1 6

LETTE1 DL169B 6 1

LETTE1 DL169C 7 3

LETTE0 DL593B 6 6

LETTE0 DL561C 1 2

MTR01C0 DL741B 7 3

Table 24 New BSIC Allocations

report using fox

Documents

new frequencies

cells anddegradation

new bcch frequencies

recording cell

reallocation cell set

bcch band

network level

defined bcch frequency