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Schema
Ultima Fort
Required Data Inputs for EricssonMarkets 2G-3G Infrastructure(for Version 4.0 and above)
Copyright Notice
Due to a policy of continuous product development and refinement, Schema reserves the right to alter thespecifications and descriptions outlined in this publication without giving prior notice of any kind. In addition,
no part of this publication, taken as a whole or separately, shall be deemed to be part of any contract forequipment or services.
Schema retains the sole proprietary rights to all information contained in this document. No part of thispublication may be reproduced, stored in a retrieval system, transmitted in any form or by any means,
including but not limited to: electronic, mechanical, magnetic, photocopy, recording, or otherwise, in use now
or in the future, without prior written consent from Schema.
Copyright 2008 Schema
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Table of Contents
1 Introduction.............................................................................................. 4
2 Required Information and Data................................................................. 5
2.1 Optimization Area...........................................................................................5
Network Data........................................................................................................6
2.1.1 GSM Network Configuration....................................................................6
2.1.2 UMTS Network Configuration (XML Format) ..............................................7
2.1.3 Sector Coordinates File..........................................................................9
2.1.4 UMTS Antenna File.............................................................................. 10
2.1.5 *.mpr File.......................................................................................... 11
2.1.6 Generic Loss File................................................................................. 11
2.1.7 Mobile Measurement Data Recordings.................................................... 122.1.8 Activation of Recordings ...................................................................... 13
2.1.9 Retrieval of Recordings........................................................................19
2.2 Handover Statistics....................................................................................... 21
2.3 Network Performance Statistics ...................................................................... 22
2.3.1 Network Performance Evaluation........................................................... 24
2.3.2 Radio Network Performance KPI Calculation............................................ 24
3 Data Collection Checklist......................................................................... 26
4 Appendix: Troubleshooting ..................................................................... 27
4.1.1 The removeFile Parameter for BARFIL and MRR File Deletion..................... 27
4.1.2 Additional Ericsson Information............................................................. 284.1.3 Parameter Database (PDB) Maps .......................................................... 28
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1 Introduct ion
This document contains a list of all the required information and data that must be collected on
Ericsson GSM infrastructures for execution of the optional GSMUMTS Neighbor List
Optimization feature in Ultima Fort v4.0, for systems with the Ericsson GSM infrastructure.
The following data is required:
Optimization area
Ericsson BSS network configuration data (XML format)
UMTS system network configuration (vendor XML format or Schema Format)
GSM Sector coordinates data
UMTS antenna file
UMTS-to-GSM handover statistics
UTRAN neighboring cell quality measurements
Generic Loss File (optional)
Performance reports
The following data and information is required:
Optimization area
Nokia BSS network configuration data (XML format)
UMTS system network configuration (vendor XML format or Schema Format)
GSM Sector coordinates data
UMTS antenna file
UMTS-to-GSM handover statistics AKA Counter 93 (Section 2.3)
UTRAN neighboring cell quality measurements AKA Counter 94 (Section 2.3)
Generic Loss File (optional)
Performance reports
The following sections provide a more in-depth description of the required data sources and
how to obtain them.
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2 Requi red Information and Data
2.1 Optim izat ion Ar eaThe definition of the network area to be optimized is:
List of cells (from both networks) in the optimization area
Extended list of cells, including a guard zone (in which only GSM cells required)
Both lists are .txt files with one column, the first item being the word Sector, followed by a list
of sector names (both GSM and UMTS).
These lists can be generated by using the Ultima Fort selection tool, and saving the
selection.
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Netw or k Data
2.1.1 GSM Netwo rk Conf ig urat io n
2.1.1.1 CNA Export in Text Format
Retrieve the required BSS network configuration file from the Ericsson OSS, using the Cellular
Network Administrator (CNA), by running the following commands:
Overall Network Configuration:
cna_export NW = all, MSC = all, MSC_REF = none, BSC = all, BSC_REF = all, SITE = all,SITE_REF = none, CELL = all, CELL_REF = all, OUTPUT=AllParameters_YYYYMMDD.txt
Foreign Cells:
cna_export NW = all, FCELL = all, FCELL_REF = all, OUTPUT=foreign_HO_YYYYMMDD.txt
(where: YYYY year, MM month, DD day)
Notes:
Foreign cell data must be exported in order to import the IRAT Handover with any UMTS
network (Ericsson, as well as Nokia).
Daily CNA adjustment jobs should be scheduled for each BSC to ensure that the network
configuration is updated in the OSS.
It is recommended that the BSS network configuration file be retrieved for each day of
mobile measurement recordings. However, it is mandatory that this file be retrieved if any
BCCH/BSIC changes were made between two days of recordings.
The BSS network configuration file should be generated just before initiating the BAR and
MRR recording sessions.
The BSS network configuration should be retrieved for each OSS that is relevant to the
optimization and surrounding areas in the network.
BSC data is optional beginning from Release R12.
At the beginning and end of the data collection process, the following optional data should be
retrieved for all BSCs, and included in the Ultima Fort network environment:
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Data Description
RLCRP:CELL=ALL,DETAIL;Cell ResourcesDetails
RXMOP:MOTY=RXOTG;Managed ObjectData
RAEPP:ID=ALL;BSC ExchangeProperties
Data retrieval should be performed via the BSC command line interface.
The output of the command printout should be stored in text files. The command name (RLCRP,
RXMOP, RAEPP) of each output type should be at the beginning of the file name, e.g.,
RLCRP_BSC1.txt.
2.1.1.2 New CNAI Export Format - R12:
Release R12 supports the New CNAI (CNA Import) alternative format for network configuration
files.
The required BSS network configuration file can be retrieved from the Cellular Network
Administrator (CNA) of the Ericsson OSS, using the following command: CNAI export valid i >
AllParameters_YYYYMMDD.txt.
2.1.2 UMTS Networ k Conf ig ur at io n (XML Form at)The UMTS Network configuration is an XML file in standard 3GPP format. Each UMTS OSS
vendor has its own method of retrieving this file.
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To retrieve the required BSS network configuration files from the Ericsson OSS:
1. Go to ConfigurationWCDMA Radio access NetworkWCDMA RAN Explorer (usually via
Citrix or OSS workstation).
2.
Right click on the root of the network and select Export Network Configuration.
Figure 1: Retrieve the Required BSS Network Configuration Files
Figure 2: Export the Required BSS Network Configuration Files
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Choose the File Name and Radio topology.
Figure 3: Save the Required BSS Network Configuration Files
2.1.3 Secto r Coord inates Fi le
The sector coordinates file should be in tab-delimited text file format, and should include
geographical information for all of the network sectors, including the following columns:
Sector
Latitude
Longitude
Azimuth
LAC (optional)
CI (optional)
Keywords (optional)
The latitude and longitude values should be expressed in decimal-degree format, with up to six
digits following the decimal point.
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2.1.4 UMTS An ten na Fil e
The UMTS Antenna file must be in tab-delimited text file format with full information for all the
sectors in the optimization and guard-zone areas.
Note: This file contains many fields (intended for future use), whose values are not currently
used for the GSMUMTS Neighbor List Optimization feature.
The required fields are in boldletters. Non-required fields should have real values for
database integrity (but the feature can run with dummy values).
RNC Name
RNC Id
Vendor
NodeB Name
NodeB Id
NodeB Longitude
NodeB Latitude
Sector Name
Active (boolean)
Noise Figure
AntennaID
Antenna Model
Sector Keywords
Antenna Longitude
Antenna Latitude
Height
Electrical DownTilt
Mechanical DownTilt
Azimuth
Downlink Loss
Uplink Loss RTT fix A Coefficient
RTT fix B Coefficient
In Building
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The following file has a sample entry that corresponds to one antenna.
Antennas.txt
2.1.5 *.mpr Fi le
The .mpr file is a text file (with the *.mpr extension) that points to the UTRAN topology file with
the following pointer:
ERICSSON_XML_FILE_NAME=path\topology_file_name.xml
2.1.6 Generic Lo ss Fi le
The Generic Loss File is of a generic horizontal antenna pattern, used to determine the order of
potential neighbors in a measurement plan.
If a user-defined file (optional) is not provided, Ultima Fort uses a one-column text file, with
default values for each relative angle between the source and target sectors, in the following
structure:
Relative angle[degrees]= Loss[dB]
For example:
0=0
1=0
2=0.01
3=0.03
4=0.05
5=0.08
6=0.12
7=0.15
8=0.2
9=0.25
..
359=0
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The following is a full example of the file:
GenericLossFile.txt
2.1.7 Mobi le Measurement Data Recor din gs
The following activities should stop during data recording:
BSC or RNC split
Site re-parenting (e.g., BSC/site relation changes in the GSM network)
LAC and CI changes in the GSM network, scrambling codes in the UMTS network, BCCH and
BSIC in the GSM network
Site and carrier additions
Sector mechanical changes, such as tilt, azimuth, and antenna
Manual UMTS GSM Neighbor additions or deletions
The following changes should be performed only during maintenance (not during recording):
TRX/Carrier additions
Frequency changes (TCH)
Frequency changes (BCCH and BSIC)
Scrambling codes changes
Manual UMTS GSM Neighbor additions or deletions
Site additions
No other parameters should be changed.
Note: BSC Version R06A (R12) (or later versions) should be used.
OSS Version RC3, RC5.3 (or later versions) should be used.
The following features should be activated to collect mobile measurements on the
Ericsson GSM OSS:
NCS-G, (NCS-GSM)
NCS-GW, (NCS-GSM/WCDMA)
In addition to the optional OSS NCS GSM-WCDMA feature, the following features are required
for IRAT modeling:
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Optional OSS features:
o FAJ 122 477, Neighboring Cell Support - GSM RAN (NCS-G)
Optional BSS features:
o
FAJ 121 815, GSM-WCDMA Active BA-list Recording
o FAJ 121 57, GSM-UMTS Cell Reselection and Handover
Mobile measurements files can be extracted from the Ericsson OSS, and used by Ultima Fort
either in binary format (Section 2.3.1) or in text format (Section 2.3.2).
2.1.8 Act i vat ion of Recor din gs
2.1.8.1 BA List Recordings (BAR) Recordings
BAR recordings should be performed during three to five consecutive working days.BAR recording is activated by:
RNO interface (if available): FAJ 122 477 Neighboring Cell Support - GSM RAN (NCS-G)
BSC command interface
To perform BAR recordings, using the RNO interface:
1. Log in to OSS.
2. Start RNO.
3.
Go to File
New Recording
NCS.4. Name the recording session.
5. Select the Measure GSMand Measure WCDMAcheck boxes.
6. Set the Relative SS Threshold to -12db.
7. Set the Absolute SS Threshold to -80dbm.
8. Set the BA List Change interval to 15 minutes.
9. Set the number of test frequencies to add to each interval to 10.
10.Enter a start date.
11.Enter a repeat value (set to daily) and a number of repetitions (set to 5).
12.Enter a date type with working days only (e.g., Monday to Friday five consecutive
working days).
13.Enter an hour range (four hours that include the network busy hour).
14.Select the cell set or BSC (including every cell in the entire network).
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15.Set the Cell Filter to a desired (available) frequency band (with the recorded cell set
limited to a specified frequency band.)
16.Select Frequencies. Create a Frequency Set for BAR recordings, including all frequencies
used for the BCCH in the desired band for the entire network.
17.Save and schedule the recording.
Figure 4: RNO NCS New Recording
Noteon WCDMA Settings:
The recording configuration consists of the following:
Number of WCDMA cells in each Measurement report.
An Absolute Ec/No threshold.
The maximum number of test UMFIs that may be added to the 3G active mode BA lists
at one time.
A set of test-UMFIs to be used in recording.
The number of WCDMA cells in each measurement report is a recording parameter that can be
set to either Network Settingsor to a numerical value between 1 and 3. The Network
Settings value uses the current FDDMRRnetwork setting for the recording, which will remain
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the same. The numerical values will activate a temporary value of the FDDMRRparameter to
be used during recording. When active, this temporary value, called TFDDMRR,blocks any
FDDMRR value update for the cells included in the recording.
The temporary value is used to increase the amount of measurement data during the recording,and affects how the Multi-RAT mobiles report data in the measurement report. This, in turn,
may affect the locating performance.
The absolute Ec/No threshold is related to a counter, which is incremented whenever the
Ec/NoUMFI> absequation is fulfilled absis the Ec/No absolute threshold and Ec/NoUMFIis the
Ec/No value for a specific UMFI, reported by the Multi-Rat mobile. The ratio between Ec/NoUMFI
and the number of measurement reports that include at least one reported UMFI during the
period when the specific UMFI has been included in the 3G Active BA-list for the cell is a value
that is used to determine whether or not the undefined WCDMA neighboring cell is included as a
defined neighbor.
A function calculates an appropriate set of test-UMFIs, based on a set of GSM cells. The WCDMA
cell coordinates determine which of those cells, located in the same area as the GSM cells, are
included in the recording. The user defines at which distance from the GSM cells the search is
performed. A list of test-UMFIs is then generated, based on the WCDMA cells that are found.
Since a maximum of 128 test-UMFIs may be included in a set, four recordings are needed to
measure all 512 Scrambling Codes for a single WCDMA-frequency.
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Figure 5: RNO NCS UMTS Settings
Figure 6: RNO NCS New UMFI Set
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Figure 7: RNO NCS Select Cell Set
Additional Notes:
Recordings in a dual band network should be made separately, based on the cell band.
However, to provide full functionality of handover optimization, inter-band recordings
should be made. Each band cell set should record a frequency set with the BCCH
frequencies for both bands. Multi Band Cells Reported (MBCR), is a cell parameter that
indicates how many neighbors from each frequency band are reported in the
measurement report. The recommended setting is either 2 or 3 in multi-band network,
in order for mobiles to report measurements from the opposite band.
While BAR files can also be generated with the Frequency Allocation Support (FAS), the
Neighboring Cell Support (NCS) should be used if possible.
The NCCPERM defines the allowed NCCs on the BCCH carriers for which MSs are
permitted to send measurement reports. Hence, if all NCCs are used, NCCPERM should
be set accordingly (i.e., all NCCs included in NCCPERM parameter) so that all NCCs are
reported. NCCPERM has no impact on idle mode behavior, since idle mode cell
reselection is based on CGI, and not on ARFCN/BSIC).
The Active BA list Recording may sometimes contain measurement results with
unexpected, disallowed BSICs, (e.g., 00 or 77). This occurs when some MSs report
irrelevant BSICs initially, before decoding actual BSIC information and is not related to a
fault in the BA List recordings feature.
If an operator has not purchased the RNO application to activate BAR recordings through NCS,
the BAR recordings can be activated, using the following BSC command line interface:
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1. RABRE:RID=RARID00; Terminate an NCS recording.
2. RABIE:RID=BARID00; Delete a recording.
3. RABII; Initiate a new recording.
4.
RABRP:RID=BARID00; Print a BAR recording status (optional).
5. RABDC:RID=BARID00, CELL=ALL; Record all BSC cells.
6. RABDC:RID=BARID00,TMBCCHNO=50&&124; Frequencies to measure 50 to 124.*
7. RABDC:RID=BARID00,NUMFREQ=10; The number of test frequencies at each interval.
8. RABDC:RID=BARID00,SEGTIME=15; The recording segment time in minutes.
9. RABDC:RID=BARID00,RELSSN=12; Negative signal strength thresholds.
10.RABDC:RID=BARID00,RELSS2P=0; Positive signal strength thresholds.
11.
RABDC:RID=BARID00, ABSS=80; Absolute signal strength (means negative dBm).12.RABDP:RID=BARID00; View recording properties.
13.RABRI:RID=BARID00,DTIME=120; Recording period time in minutes, beginning as soon
as this command is entered!
14.RABTI:RID=BARID00,IO=FILE; After recording is complete, this command creates the
output binary file in the OSS.
15.RABTI:RID=BARID00, IO=AT-##; Substitute at-## with the number of the AT device
seen when connecting to this BSC. The text output iproduced on the AT-## device**.
* - The relevant frequency set should be used for each specific case.
** - If, for some reason, a binary file cannot be created, the BAR text output can be
generated at the BSC command terminal, with the generated printout being stored as a
text file.
2.1.8.2 MRR Recordings
Measurement Results Recordings (MRR) are files that contain RxLevel, RxQual, and traffic data.
MRR recordings should be generated with, and for the same cell set as, BAR recordings, and
without filtering or thresholds.
An MRR recording may be activated via:
RNO interface (if available): FAJ 122 522, Measurement Result Recording (MRR)
BSC command interface
To make MRR recordings using the RNO interface:
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1. Log in to OSS.
2. Start RNO.
3. Go to File
New Recording
MRR.
4.
Name the recording session.
5. Enter a Start date.
6. Enter a repeat value (set to daily) and a number of repetitions (set to 5).
7. Enter a date type with working days only (Monday to Friday five consecutive working
days).
8. Enter an hour range (three hours defined to include the network busy hour).
9. Select the cell set or BSC (including every cell in the entire network).
10.Set Cell Filter to a desired (available) frequency band. (The recorded cell set is limited to
a specified frequency band.)
11.Save and schedule the recording.
In the absence of an RNO application, MRR recordings may be activated using the BSC
command line interface, as follows:
1. RAMRE: RID=MRRID00; Terminate an MRR recording.
2. RAMIE: RID=MRRID00; Delete a recording.
3. RAMII; Initialize a new recording.
4.
RAMRP: RID=MRRID00; Print status (optional).5. RAMDC: RID=MRRID00, CELL=ALL; All cells of a BSC are recorded.
6. RAMDC: RID=MRRID00, MEASTYPE=NOTYPE; All measurement types are collected.
7. RAMRI: RID=MRRID00, DTIME=120; Recording period time, which starts as soon as this
command is entered!
8. RAMRP: RID=MRRID00; Print status (optional).
9. RAMTI: RID=MRRID00; After the recording is finished, this command should be run to
create the output file.
2.1.9 Retr i eval of Recor din gs
2.1.9.1.1 BA list recordings (BAR) Record ings : Binary mode
Binary format files contain C/I measurements.
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Once recording is finished, the BARFILs files should be stored for each BSC on FTP. If they are
not stored within 48 hours after recording, they will be deleted from the system.
Binary BARFILs files are located in the following OSS directories:
R8:
o /var/opt/ehpt/eac/data/fs/BSC_NAME/
R9/R10 and later with IOG20:
o /root/var/opt/ericsson/nms_eam_eac/data/fs/BSC_NAME/
R9/R10 and later with APG40:
o /root/var/opt/ericsson/brf/data/db/tmpfileStore/BSC_NAME/
Note:
The binary transfer method should be used to transfer BARFILs from UNIX to Windows via FTP.
All BARFILs recorded on the same day should be stored in the same directory.
The Appendix provides information on troubleshooting situations in which BAR files are not
created.
2.1.9.2 Measurement Resul ts Recordings (MRR) - Binary Mode
When the recording is finished, store the MRRFILs files for each BSC on an FTP. If they are not
stored within 48 hours after recording, they will be deleted from the system.
Binary MRRFILs files are located in the following OSS directories:
R8:
o /var/opt/ehpt/eac/data/fs/BSC_NAME/
R9/R10 and later with IOG20:
o /root/var/opt/ericsson/nms_eam_eac/data/fs/BSC_NAME/
R9/R10 and later with APG40:
o /root/var/opt/ericsson/brf/data/db/tmpfileStore/BSC_NAME/
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Notes:
Use the binary transfer method to transfer MRRFILs from UNIX to Windows via FTP.
All MRRFILs recorded on the same day should be stored in the same directory.
The Appendix provides information on troubleshooting situations in which MRR files are not
created.
2.1.9.3 NCS Recordings - Text Format Files
NCS Recording files, available in the RNO application window, contain C/I measurements, which
are similar to the information available in the raw binary BAR recordings.
NCS files can be exported from the RNO application window in pairs, one with an *.msmt
extension (data) and one with a *.conf extension (file configurations and recordings
information).
2.1.9.4 MRR Recordings - Text Format Files
MRR Recording files contain RxLevel, RxQual, and traffic data, which can be extracted in either
binary or text formats. Text format can be exported directly form the RNO application window.
Text MRR files are extracted in pairs: one with an *.msmt extension (data) and one with a
*.conf extension (file configurations and recordings).
MRR recordings are exported to ASCII files via the RNO GUI. Both export files (*.msmt and
*.conf) should be transferred. The data from these files may be used to back up MRRFIL files.
2.2 Hando ver Stat i st ic s
Handover statistics for each cell-to-cell relation should be collected for handover optimization.
These statistics should be aggregated for an entire week for each cell-to-cell relation, and
provided in a tab-delimited text file with the following fields:
Serving Sector
Target Sector
Handover Attempts
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Notes:
The following counter can be extracted from 3G OSS for IRAT Handovers from 3G to 2G
cells: pmnoattoutirathospeech
It is not necessary to import 3G to 3G handover attempts, since they are not optimized inFort.
2.3 Netw or k Perf orm ance Stat ist ic s
Network performance statistics should be collected for network traffic modeling and post-
optimization network performance benchmarking.
The following network performance statistics should be collected per cell, and calculated hourly
over seven consecutive days:
Overall GSM HO Performance (Cell to Cell Relation, HO Attempts, HO Reversions, HO Lost,).
These statistics should include the following counters: HOVERCNT, HOVERSUC, HORTTOCH,
HOASBCL, HOASWCL, HOUPLQA, HODWNQA, HOATTLSS, HOATTHSS.
Specific IRAT HO performance should be calculated from a 2G network using the following:
o The number of handover commands sent to mobile station, with the neighboring UTRAN
cell as target cell (HOVERCNTUTRAN).
o The number of successful handovers to the neighboring UTRAN cell (HOVERSUCUTRAN).
o The number of handover attempts to the neighboring UTRAN cell when the MS returned
to the old channel (HORTTOCHUTRAN).
o
The number of handover commands sent to mobile station due to urgency in the GSMcell, with the neighboring UTRAN cell as target cell (URGHOVERUTRAN).
o The number of successful handover attempts, due to urgency in the GSM cell, to the
neighboring UTRAN cell (SUCURGHOUTRAN).
Specific IRAT HO performance should be calculated from a 3G network using the following:
KPI DESC Equation
Voice 3G-2G IRAT HOFailure Rate (%)
IRAT failure rate forvoice calls when thetrigger is based on an RFcondition. When thevoice call is notsuccessfully handed overto GSM network, the callis returned to the UMTSnetwork and continues inUMTS until it attempts
100*[1-(pmnosuccessoutirathospeech/pmnoattouthospeech)]
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another IRAT HO. Thiscounter will only beincremented in theSRNC.
Voice 3G-2G IRAT HOfailures
Total number of voiceIRAT 3G-2G failures.
(pmnoattoutirathospeech -pmnosuccessoutirathospeech)
Total Voice 3G-2G IRAT HO(incl SBHO) Failure Rate(%)
The IRAT failure rate forvoice calls when thetrigger is based on an RFcondition and a service-based handover. Whenthe voice call is notsuccessfully handed overto the GSM network, thecall is returned to theUMTS network and
continues in UMTS until itattempts another IRATHO. This counter willonly be incremented inthe SRNC.
100*[1-{pmNoSuccessOutIratHoSpeech+pmNoSucssSbHoSpeech}/{pmNoAttOutIratHoSpeecpmNoAttOutSbHoSpeech}]
Total Voice 3G-2G IRAT HO(incl SBHO) failures
Total number of IRATfailures, includingService based HOs.
[(pmNoAttOutIratHoSpeech+pmNoAttOutSoSpeech)-(pmNoSuccessOutIratHoSpeech+pmNoSucssSbHoSpeech)]
PS Interactive IRAT FailureRate (%)
The inter-RAT CC fromUTRAN to GPRS when UEis on DCH. The counter isincreased when the CellChange Order FromUTRAN Failure (RRC)message is received fromthe UE.
100*(pmnooutiratccreturnoldch/pmnooutircatt)
PS interactive IRAT HOfailures
Total number of PSinteractive IRAT failures (pmnooutiratccatt - pmNoOutIratCcSuccess
Multi-RAB IRAT Failure Rate(%)
The outgoing (to GSM)inter-RAT handoverfailure rate for multi-RABfor the best cell in the
active set. The counter isonly incremented inSRNC.
100*[1-{pmNoSuccessOutIratHoMulti/pmNoAttOuttHoMulti}]
Multi RAB IRAT HO failuresTotal number of Multi-RAB IRAT failures.
(pmNoAttOutIratHoMulti -pmNoSuccessOutIratHoMulti)
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Hs Cell Change Failure Rate(%)
The HS Cell Changefailure rate. The counterstops after a RRCPhysical ChannelReconfigurationComplete has beenreceived from the UEduring the HS-DSCH CellChange, or after a RRCRadio BearerReconfiguration whenthere is a PDU sizechange during a HS-DSCH Cell Change.
100*[1-{pmNoHsCcSuccess/pmNoHsCcAttempt}]
HS Cell Change FailuresTotal number of HS CellChange failures, (pmNoHsCcAttempt - pmNoHsCcSuccess)
2.3.1 Netwo rk Perfo rmanc e Evaluat ion
Each KPI improvement rate will be calculated as:
%100__
=before
afterbefore
KPI
KPIKPIratetimprovemenKPI
The improvement in the handover success rate will be calculated as:
%1001
__
=
before
beforeafter
KPI
KPIKPIratetimprovemenSuccess
Each KPI improvement ratio can be calculated separately over a period of five working days
(during each days network busy hour) before and after the optimization cycle.
Any network performance KPIs that are not related to the BSS subsystem should be excluded
from the calculation.
2.3.2 Radio Netwo rk Perfo rmanc e KPI Calcu lat ion
The following formulae calculate the KPIs that evaluate radio network performance:
=)HOVERCNT(
)HOVERSUC(___ RateSuccessHOOutgoing
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Outgoing 3G-2G IRAT HO Failure Rate (%) = (pmnosuccessoutirathospeech /
pmnoattoutirathospeech)
Outgoing 2G-3G IRAT HO Failure Rate (%) = HOVERSUCUTRAN/ HOVERCNTUTRAN
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3 Data Col lect ion Checkl istSOURCE COMMENTS CHECK
Network Data
GSMS Network Configuration
UMTS Network Topology(XML)
GSM Sector Coordinates File
UMTS Antennas file
UMTS .mpr file
Generic Loss File optional
Mobile Measurements & IRAT HO statistics Recordings
Day 1 Day 2 Day 3 Day 4 Day 5
Prior to the measurementplan
During the measurementplan
After the measurement plan
Network Performance Statistics (before and after the plan)
IRAT HO failure rate UMTS-to-GSM HO attempts
UMTS-to-GSM HO Success
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4 Appendix: Troub leshoot in g
BARFIL and MRRFIL files are transferred from the BSC to the OSS, once the recording has
finished.
4.1.1 The removeFi le Parameter for BARFIL and MRR Fi le Delet i on
To check the setting of the removeFile parameter:
1. Connect to the OSS via an external application, such as Citrix ICA Client.
2. Check the file removing option in OSS, which automatically deletes MS files (perhaps to
avoid hard disk space problems). The possible values for this parameter are:
removeFile Value Result
0MS files will not beremoved
1MS files will beremoved
Parameters in OSS are stored in Parameter Database (PDB) maps. The removeFile parameter
belongs to the BRF map.
To determine the value of the OSS parameters, use the cap_pdb_get_para command:
cap_pdb_get_para n brf removeFile
The Ericsson Alex Library has additional details.
3. Change the value of the file removing option from 1 to 0, using the cap_pdb_mu
command (with the correct user privileges). (If the file removing option is set to 1, files
will be deleted.) If the BRF map is edited with an editor such as VI, it may lock the
database, and the cap_pdb_mu command may not work with BRF. A user with Super
User access (and perhaps additional knowledge) may be able to resolve this problem.
4. Activate the NCS recording using the RNO.
5. Look for BARFIL and MRRFIL files after completing the collection process, since these
files must be located in their corresponding directories.
6. Return the file removing option to its original value (1) after completing the MS
collection. If this parameter is not changed back to the original value, the result may be
a reduction in hard disk space, in addition to other collateral problems.
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4.1.2 Addi t i ona l Er icsso n In format ion
(This material originally appears in official documentation, entitled Op e r a t i o n s Su p p o r t
S y s t em ( O s s ) R c 1 . 1 , Cp 4 ).
Files retrieved from APG40 are stored in the /tmpFileStore/ directory.
File Description
The path is stated bythe dbPathparameter in BRFmap.
The BSC.
The removeFile parameter in the BRF map can be set up to delete files automatically, as
explained in the previous section.
4.1.3 Paramet er Databas e (PDB) Maps
Each application has its own parameter database map, with parameters relating to the current
installation.
When the appropriate command is entered in the command shell window (man -s7 ), additional map information is displayed on the main page.
Application Map Name
BRF Brf
FAS Fas
FOX Fox
NCS Ncs
NOX Nox
TET Tet
MRR Mrr
Use cap_pdb_mu to edit the map.
Note:
To edit system parameters, select RNO System Parametersfrom the Optionsmenu in the
RNO main window.