3G APR Process V1.0
-
Upload
shiv-chaudhary -
Category
Documents
-
view
44 -
download
5
Transcript of 3G APR Process V1.0
3G APR Process Document Classification: C1
RO – QoS North Optimisation
3G APR Process
Version 1.0
Page 1 of 19 document.doc
Author Jonathan feasby
Date 23/12/2006
Version 1.0
Filename document.doc
3G APR Process Document Classification: C1
Ownership & Distribution
Name Responsibility Owner Approver Reviewer Distribution
Document History
Version Reason Date
1.0 Draft Version 18.07.2005
.
Page 2 of 19 document.doc
3G APR Process Document Classification: C1
Table of Contents
1 Introduction...................................................................................................................................41.1 Purpose................................................................................................................................41.2 Scope...................................................................................................................................41.3 Out of Scope........................................................................................................................4
2 Key Points & Assumptions............................................................................................................42.1 Key Points............................................................................................................................42.2 Assumptions.........................................................................................................................5
3 Terms & Abbreviations.................................................................................................................5
3.1 Definition of Terms...............................................................................................................53.2 Process Abbreviations..........................................................................................................5
4 Process Description......................................................................................................................64.1 Process Flow Chart..............................................................................................................64.2 Process Summary................................................................................................................7
5 Activity Description.......................................................................................................................8
5.1 <Enter Activity Name 1>.......................................................................................................86 Process Role Definition................................................................................................................9
6.1 <Role Name 1>....................................................................................................................97 Acknowledgements.......................................................................................................................9
Page 3 of 19 document.doc
3G APR Process Document Classification: C1
1 IntroductionThe 3G APR process provides a method through which a group of cells within specified areas of the
3G Radio Network is analysed. This is to identify any CS or PS performance issues in order to look
at resolutions.
1.1 PurposeThe purpose of this document is to illustrate the 3G APR Process for the management of 100k
Town Performance evaluation and subsequent analysis within RO – QOS Optimisation and
consequently within Business As Usual (BAU).
1.2 ScopeThis document defines the process and it provides details of the inputs and outputs as well as
ownership and timescales to give a holistic view of how the process should function.
This document also provides a framework for the responsibilities of those involved in managing the
100k Town Performance evaluation and subsequent analysis.
1.3 Out of ScopeProcesses that have been identified as out of scope are:
2G Optimisation
Service Area Team
Rigging Team Co-ordination
2 Key Points & Assumptions2.1 Key PointsThe processes described herein are based upon the following key points and criteria:
APR Area - The Area will define the extent of the analysis. The area will encompass all the
3G cells to be analysed. A list of the 3G cells must be included with any known issues The
area should be bounded by a polygon. The area can be user defined e.g Docklands or
Defined by the Business e.g 100k Towns
Cells – The cells list is required to define all the 3G cells included in the analysis (Planned
and Live). Any known cell issues should be noted.
Page 4 of 19 document.doc
3G APR Process Document Classification: C1
Analysis – The analysis will be conducted for all the cells defined in the APR area. There are
4 main areas of analysis.
o Statistical analysis based at cell level counters
o Radio parameters
o Predicted Measurements (Atoll Plots)
o Drive Test Results
APR Schedule – The APRs are to be conducted on a bi annual basis as BAU for each area
OR if the performance of an area falls below the set Radio KPI OR upon request as part of
other projects.
2.2 Assumptions
The following assumptions have been made whilst creating this process:
C&T planners are responsible for delivery of new site integrations, planned cells lists and
Atoll plots and have a separate process detailing the work flow.
C&T planners are also responsible for the approval of physical changes to site
configurations and ICNIRP compliance.
Regional Service Area Teams are responsible for cell availability.
Drive Team resource is available for any drive trial requirements with all necessary
equipment.
External rigging teams will supply materials for physical changes as part of their BAU
activities.
Optimisation Teams are proficient in the use of all tools/software mentioned within the
process and have necessary access/logins.
3 Terms & Abbreviations3.1 Definition of TermsThe following terms are used within this document:
Term Meaning
Page 5 of 19 document.doc
3G APR Process Document Classification: C1
Change Management Team
Are responsible for agreeing & managing changes to the network
Configuration Management
Prepare and load onto the network data files containing agreed changes
Service Area Team
Are responsible for physical changes to the network, i.e. changing hardware within the network
3.2 Process Abbreviations
The following abbreviations are used within this document:
Abbreviation Meaning
C&T Coverage and Transmission
APR Area Performance Review
KPI Key Performance Indicator
POI Point of Interest
CS Circuit Switched
PS Packet Switched
XML Extended Mark-Up Language
VPW Vodafone Parameter Warehouse
GPEH General Performance Event Handling
UE User Equipment
NCS Neighbour Cell Support
OSS Operation System Support
RECORD Radio Engineering Configuration in Oracle Database
2G 2nd Generation Mobile Telephone Network
3G 3rd Generation Mobile Telephone Network
CSSR Call Setup Success Rate
DCR Drop Call Rate
ICNRP International Commission for Non-Ionizing Radiation Protection
IRATHO Inter Radio Access Technology Hand Over
SAT Service Area Team
Page 6 of 19 document.doc
<Insert Process Name> Document Classification: C1 - C2 - C3 - C4 <Delete as appropriate>
4 Process Description
4.1 Process Flow Chart
Page 7 of 19 document.doc
3G APR Process Document Classification: C1
4.2 Process Summary
Process Reference
Process Name 3G APR Process
Process Description The 3G APR process provides a method through which a group of cells within specified areas of the 3G Radio Network is analysed. This is to identify any CS or PS performance issues in order to look at resolutions
Inputs Cell Data (Live and Planned), Counter based statistics, Parameter sets, Drive Trial data.
Process Breakdown Area Definition
Compile cell data (live and planned)
Atoll plots
High level statistical analysis
C&T planner discussion
Ncell Audit
Parameter Audit
Detailed statistical analysis
Drive Trial analysis
Conclusions
Recommendations
Publish APR
Review APR actions when recommendation complete.
Controls Active Library Explorer (ALEX)
Nortel Live Link
Resources Required (Non-People)
Applications: Clarify, Evenflow, VPW, OSS/RC, ACTIX, EMAS, MS Office, Business Objects, NEMO, TEMS, WNMS, PrOptima, Atoll.
Equipment: Specialist Vehicle, Scanner, Specific UE
Process Role Optimisation Engineer
RF Engineer (Drive Tester)
C&T planner
Outputs Completed APR document detailing all areas for
Page 8 of 19 document.doc
<Insert Process Name> Document Classification: C1 - C2 - C3 - C4 <Delete as appropriate>
improvement and what recommendations are being implemented to achieve an improvement in performance.
Process Measures Improved performance measured within the APR area compared with agreed KPI detailed in section 5.9.
Timescales Each defined APR area (100k Town) to be reviewed twice a year.
Process Risk & Error Sources
The effectiveness of the process and therefore the improvement in Area Performance is reliant on the experience of the Optimisation Engineer and C&T planner.
Current Department(s) The activities / tasks that are within scope of this Process are completed by:
VF UK North Region Optimisation Team
Process Owner The owner of this process and, therefore, responsible for approving / authorising any changes to the process is:
VF UK North Region Optimisation Team
Page 9 of 19 document.doc
<Insert Process Name> Document Classification: C1 - C2 - C3 - C4 <Delete as appropriate>
5 Activity DescriptionThis section references the Activity from the process flow in section 4.1
5.1 IntroductionProcess ID Introduction.
Area Overview/Definition/PolygonInputs Scheduled APR, Reported Customer Complaints, KPI’sProcess Definitions Introduction- Provide a Brief Overview of the Area. Include
Traffic Hotspots, Special Events, Main areas of interest, POI, any Special Projects/Trials and any other relevant information.Area Overview/Definition/Polygon -Define the geographical extent of the area. Include Size in km2.
Outputs Introduction and Overview of APR AreaA definition of the Geographical area for the APR e.g 100k Town.
SLAKPINotes The inputs are used as a basis for deciding which area is to
be used. E.g a 100k town not meeting its KPI’s
5.2 Cell ListsProcess ID Define Cells ListInputs APR area. APR polygon. Planned Sites.
Exist9ing Sites. Atoll Plots.Process Definitions List all LIVE 3G Cells within the Extent of
the APR area. Include Cell Type W, B, C etc. Include a column for Cell issues. Note any cell specific issues.List all PLANNED 3G cells within the extent of the APR area. Include details of planned live date, objective and planned configuration.
Outputs Completed Live Cell List List- see belowCompleted Planned Cell List- see below
SLAKPINotes
Live Cells List- Example
SITE TX_ID RNC BUBBLE UTRAN_ID SC Cell Issue Cell Type24 W00024011 SD1 153 35459 0 None W
24 W00024021SD1
153 35458 8Requires 2nd
Carrier Upgrade
W
24 W00024031 SD1 153 35457 16 Faulty Antenna
W
Page 10 of 19 document.doc
<Insert Process Name> Document Classification: C1 - C2 - C3 - C4 <Delete as appropriate>
32210 W32210031 SD1 153 37144 64 None W
7938 W07938031 SD1 136 44934 377 Crossed Feeders
W
1844 W01844021 SD1 136 46228 57 SC clash W
1844 W01844031 SD1 136 46227 65 Hardware Fault
W
Planned Sites- Example
SITE Planned Live Site Objectives
Sites Details Cell Type
48975 Aug 06Improve
RSCP along the A219
25m, 3G Only, 3 Sector
W
48979 Jan 08 Improve
Ec/Io in City Centre
15 m 2G/3G, 2 Sectors
W
5.3 Atoll PlotsProcess ID Atoll PlotsInputs Planned Sites Layer .Atoll. Map Data.Process Definitions Produce RSCP, Ec/Io Plots for existing
Coverage, Proposed Coverage, Dominance , Soft Hand Over Regions. Include the Traffic Load Conditions applied.
Outputs RSCP Existing and Planned Coverage , Ec/Io existing and planned Coverage , Dominance , Soft Hand Over Regions.
SLAKPINotes
5.4 Meeting with C&T plannerProcess ID Meeting with C&TInputs Planned Sites Details. C&T Local
Knowledge. POW.Process DefinitionsOutputs Summary of discussion to included
planned sites and also any configuration changes expected.
SLAKPINotes
5.5 High Level StatisticsProcess ID High Level Statistics
Page 11 of 19 document.doc
<Insert Process Name> Document Classification: C1 - C2 - C3 - C4 <Delete as appropriate>
Inputs KPI’s for Time period since last APRProcess Definitions Complete and Insert the KPI’s table
BelowOutputs Completed KPI’s table and Produce KPI’s
graph for the previous Month or since last APR
SLAKPI As per existing 3G KPI’sNotes
5.6 Radio Network Functionality and AuditProcess ID Radio Network Functionality/ Features
AuditInputs OSS XML dumps, Drive Test ResultsProcess Definitions Complete Table Below for the defined
area/ No of Sites.Outputs Completed TableSLAKPINotesExample Radio Network Features Table
E/// RAN Functionality RNC/Cell level Parameters
Parameters exist within APR area with non-default
settings Y/N
Number of Cells with non-
default parameter settings
Admission Control Both Y 1Cell Update RNC N N/A
Channel Switching RNC N N/ACongestion Control Cell Y 1
Capacity Control Both N N/AConnection Setup and
Release RNC N N/APaging RNC N N/A
Power Control Both N N/ARadio Connection
Supervision Both N N/AActive Set Performance Both N N/A
Cell Reselection Both N N/AIRAT Handover Both N N/AInter-Frequency
Handover and Cell Reselection
Both N N/A
Inter-Frequency Load Sharing Both N N/A
Directed Retry Both N N/AService Related
Congestion Handling Both N N/ADynamic RAB Establishment RNC N N/A
Page 12 of 19 document.doc
<Insert Process Name> Document Classification: C1 - C2 - C3 - C4 <Delete as appropriate>
HS Admission Control Both N N/AHS Mobility RNC N N/A
HS CQI Adjustment RNC N N/A
5.7 NCELL AuditProcess ID Ncell AuditInputs OSS, XML dumps, NCS-W, NCS-G Audit,
VPW, Drive Trails Results, Atoll, GPEH traces.
Process Definitions Conduct audit to identify missing Neighbour Relations. Conduct audit to find redundant relationships that are no longer required.
Outputs Details the missing Ncells as an input to the Final Actions.Detail the Redundant Neighbours to be removed.
SLAKPINotes Missing Ncells to be complied as a .csv
file and sent to the regional SAT.
5.8 Parameter AuditProcess ID Cell Level Radio Parameters AuditInputs OSS, XML dumps, NCS-W, NCS-G AuditProcess Definitions Conduct audit to assess cell level
ParametersOutputs Detail the Cell Level Parameters with
incorrect Values. Complete Table Below.SLAKPINotes Missing Ncells from newly integrated sites
should be verified with the C&T enginneer
Example Table
Parameter NameNetwork Value
Default Setting
Date Corrected
Clarify Case
No Errors Found N/A N/A N/A N/A
5.9 Detailed Statistical AnalysisProcess ID Statistical Analysis of CS / PS
PerformanceInputs VPW, Visa Scripts, GPD, Mycom, OSS
Dumps.Process Definitions Use Visa Scripts/ Mycom Scripts to
determine the following Performance
Page 13 of 19 document.doc
<Insert Process Name> Document Classification: C1 - C2 - C3 - C4 <Delete as appropriate>
metrics for the APR cells.Outputs Accessibility
CSCell Level Performance- CSSR%RRC Setup Success ( CS)PSCell Level Performance- Accessibility ( PSSR)%RRC Setip Success ( PS)RetainabilityCSCell Level Performance-DCR Worst CellsCell Level Performance- Drop Reason for Worst Cells.CS64 Drops ( Rab Release)PSPS Drops ( Rab Release)HSDPA Drops ( HS Rab release)Cell Level Performance- Channel Switch FailuresMobilityHandovers- 3G –3GHandovers IRAT 3G – 2GDrops due to Handover Failures- Hard Handover failures, Soft Handover Failures,Handover Requests Vs Completed HandoversDrops to UL sync.IRAT Ho Success.IntegrityDownswitch Channel % SuccessUpswitch Channel % SuccessUpswitch ThroughputCapacityASE AnalysisCell Load ( carried Traffic/ Noise Rise)Cells DL Throughput.Area Throughput.Cells with DL Power LimitationsCells with DL Code Limitations
SLAKPI See Below.Notes Detail major contributing sites to overall
poor area performance. Detail any known core network issues.
Current 2006/ 2007 KPI’s
Page 14 of 19 document.doc
Network / Area
94.8696.13G PS CCSR
Network / Area
3.0133G PS DCR
Network / Area
97.899.13G PS CSSR
Network97.3973G VT CCSR
Network0.7713G VT DCR
Network98.15983G VT CSSR
Network / Area
0.750.853G Voice DCR
98.31
99.05
Current Performance
Network / Area
Network / Area
Scope
98.253G Voice CCSR
99.13G Voice CSSR
Target
<Insert Process Name> Document Classification: C1 - C2 - C3 - C4 <Delete as appropriate>
5.10 Drive Trial AnlaysisProcess ID Drive Test Performance Analysis. Drive
Trial ResultsInputs Recent Drive Trails Results.Process Definitions Analysis of Drive Trails Results using
ACTIX analyser ( or other analysis tool). Show locations of Drops and Failures.
Outputs Plot of RSCP, EcNo for Drive Route.Plot showing location of Dropped calls and call failures.Summary of call performance (DCR, CSSR)Summary table showing reason and resolution of call drops/failures.
SLAKPINotes
5.11 ConclusionsProcess ID Overall ConclusionInputs Statistics, Drive Test Analysis,C&T
Comments, VF StrategyProcess Definitions Draw together conclusions from previous
sections to focus on Issues. IncludeOverall RF EnvironmentAccessibility CS
Page 15 of 19 document.doc
<Insert Process Name> Document Classification: C1 - C2 - C3 - C4 <Delete as appropriate>
Accessibility PSRetainability CSRetainability PSMobilityIntegrityCapacity
Outputs Final Conclusions in preparation for Recommendations. Draw together all the findings in the APR.
SLAKPINotes
5.12 Previous APR reviewProcess ID Review Previous APR actionsInputs Current APR results and findingsProcess Definitions Detail the actions from the previous APR
and confirm whether they were completed or if they are still required/not actioned.
Outputs List of APR actions to complete.SLAKPINotes To ensure any actions from previous APR
are completed. If not they become part of the actions for current APR.
5.13 RecommendationsProcess ID Actions/ Changes SummaryInputs Current APR results and FindingsProcess Definitions Detail all the physical changes and
recommendations to be actioned as a result of this APR .
Outputs Table summarising all the physical changes and recommendations to be actioned as a result of this APR .
SLAKPINotes If table is not suitable for the proposed
changes then use a Bullet point list with a full description of requirements.
5.14 Ongoing ActionsProcess ID Ongoing ActionsInputs SAT, CN Team, Process Definitions Identify any other actions ongoing in the
area that may affect the performance of the area under review. Actions to include may be RNC upgrades, site cutovers, SW upgrades etc.
Page 16 of 19 document.doc
<Insert Process Name> Document Classification: C1 - C2 - C3 - C4 <Delete as appropriate>
Outputs Detail any other issues that effect the ARP results
SLAKPINotes
5.15 Update APR TrackerProcess ID Update APR Tracking spreadsheetInputs APR Results/ActionsProcess Definitions Complete spreadsheet for tracking.Outputs Updated Spreadsheet with new actionsSLA Within 1 week of completed APRKPINotes Location of APR spreadsheet South
RegionTBCLocation of APR Spreadsheet North Region\\Ntfiler2\north_optimisation\Optimisation\Performance_Management_Team\APR
5.16 Publish APRProcess ID Publish APRInputs APR ReportProcess Definitions Publish the APR. Ensure its stored in a
single location and is available to all users.Outputs Report Available for ReviewSLAKPINotes Location of APRs North Region
\\Ntfiler2\north_optimisation\Optimisation\Performance_Management_Team\APR
5.17 Post APR ReviewProcess ID Post APR ReviewInputs Current APR results. APR ActionsProcess Definitions Review of the area Statistics After the
recommendations and changes have taken place.
Outputs Results showing the improvements in the Performance of the area after the APR actions are completed. Detail improvements in the following categories:Overall RF EnvironmentAccessibility CSAccessibility PSRetainability CS
Page 17 of 19 document.doc
<Insert Process Name> Document Classification: C1 - C2 - C3 - C4 <Delete as appropriate>
Retainability PSMobilityIntegrityCapacity
SLAKPINotes
Page 18 of 19 document.doc
<Insert Process Name> Document Classification: C1 - C2 - C3 - C4 <Delete as appropriate>
6 Process Role Definition6.1 Optimisation Engineer
Role Description The Optimisation Engineers are responsible for the monitoring & performance improvement of the 3G UTRAN network at both RNC and Cell Levels.
They must use their skill and experience to collect & analyse network data, identify problems, and recommend solutions.
They are required to understand and use various systems, applications & tools to perform their role
Responsibilities Use of all required systems, applications and tools
Collection of data
Analyse of data
Recommend solutions
Produce reports
Required skill-sets Optimisation Specialist
7 AcknowledgementsTitle Role & Responsibilities
Page 19 of 19 document.doc