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RNP-RNO
PROCESSES
RNP-RNO
10rd Dec 2008
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Forecasting (1)
Marketing
Forecast
Traffic Trend
Analysis
New site numbers
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Site Acquisition (2)
Hexagon/Grid PlanningTraffic TrendsCoverage Requirements
Nominal Site Location
Candidate Ranking & Selection
SiteSurvey
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Site Commissioning (3)Site Design
Data fill & Frequency Planning
Build, Installation & Commissioning
Drive Test & Optimisation
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Nominal Planning
Map data Propagation models
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Nominal Planning
Coverage design thresholds: Adopt thresholds based on link budget calculations
Traffic: Use Asset for planning traffic distribution
Database:Accurate site database and regular program site auditsto maintain database integrity
Site templates:RF engineers of Network Planning Dept. have created aseries of standard site templates in Asset for use innominal planning
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Site Surveys
Site survey Process:1. RF Planners survey all nominal sites
2. RF Planners adjust the nominal plan
3. Nomination takes place only after complete analysis ofoptions
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Site Build
Full documentation (including drawings) ofagreed design after site survey Mast drawings
Antenna locations
Feeder runs
Transmission equipment positioning
Unnecessary site visits sometimes required
to confirm site details
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Data fill & Frequency Planning
RF Engineers of Network Planning use theinformation to plan BSS parameters (newsites & neighbour sites):
OMC Parameters: default parameters except in someespecial sites.
RF Parameters
Neighbours
Frequency
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Initial Optimisation
Base on Driving Test & KPIs monitoring
Checking neighbours, interference, and KPIs Need to change RF Parameters (azimuth,
tilt,..) & adjust OMC parameters for this newsite & neighbours sites if necessary.
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RADIO NETWORK OPTIMISATION PROCESS
Aims of This Presentation Overview of current rollout processes
KPIs and KPIs threshold are used
Radio Network Optimisation is a continuousprocess to improve the existing service qualityand provide additional capacity and coveragebased on demand Identification and rectification of performance affecting
problems, within the constraints of existing networkinfrastructure
Changes to network design to allow for growth
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RADIO NETWORK OPTIMISATION
Keeping an eye on the network performance to find out problem areas
Tracking down and resolving particular problems once the problematic area isidentified
RoutinePractices Processes
Two Step Process!
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KPIs (Key Performance Indicators) Monitoring
Customer Complaints
NHA
Network Downtime Report Generation
Weekly Traffic Report
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Existing Processes
Site Check Process
Drive Test Process
CTP Analysis Process
Neighbour Planning Process
Frequency Planning Process
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Network Problems Identification and
Rectification Process
Customer Complaint Problems locatedthrough KPIs
Thorough Drive Test ANDKPI Monitoring of problem
area/site
CTP Analysis
Drive test, Equipment Check,Equipment Calibration and PowerCheck of the problem site/sites
ProblemSolved?
Customer Complaint Deliveredto Technical Management of
Operator
TechnicalMeetings
Network StatisticsDelivered to Planning
and of Operator
NO
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Neighbour IssueOR
Change in Antenna
Tilt/ AzimuthRequired?
YES
NO
FrequencyChange
Required?
Request Form forchanges
ChangesImplemented
Start of the
Process
New ConfigurationInformation Distributed
YES
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Network Problems Identification and
Rectification Process
CTP Analysis OMC carries out a detail analysis of that customers calls using
Call Trace Product.
Results from CTP analysis are used for
The initiation of site hardware check for the problem sites.
Answer the customers by Customer Care Group
N t k P bl Id tifi ti d
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Network Problems Identification and
Rectification Process
Network Statistics taken by OMC: This statistics file mainly contain:
Downtime Report Summary (whole network)
Following Network Statistics (hourly):
Call Setup Success Rate
Call Success Rate Call Volume
Drop Call Rate
Handover Failure Rate
Handover Success Rate
OUT_INTER_CELL_HO_FAIL_RECOVER
SDCCH Blocking Rate
TCH_BLOCKING_RATE_OUT_ZONE
TCH Mean Holding Time
TCH Traffic Carried
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Network Problems Identification and
Rectification Process
Site Hardware Check:
Use for problem areas and sites
Power check out port TRX at top cabinet
Calibration of TRX (of Motorola)
Check all the feeders and ANT using VSWR meter
BTS testing equipment
GCLK calibration
Battery Check
External Alarms
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Network Problems Identification and Rectification Process
Drive Test and KPI Monitoring of Problem Areas/Sites:
After carrying out a proper hardware check
KPIs are monitored again to see if the issue has been resolved or not
If the problem still exists, then a thorough drive test of the problemarea and sites is planned and conducted by Network Planning Team
Problem Resolving
Decides whether the problem is due to a neighbour issue or a changein antenna tilt and azimuth is required (based on drive test resultsand KPI values)
Changes in frequency are considered if the problem does not appearto be due to a neighbour or antenna issue. The Planning Team
determines the new frequencies.
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Network Growth Plan Process
Network Statistics taken by OMC:
Focus on traffic and control channel statistics:
Call Volume
SDCCH Blocking Rate
TCH_BLOCKING_RATE_OUT_ZONE
TCH Mean Holding Time
TCH Traffic Carried
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Network Growth Plan Process
Blocking/ congestion on sites Analyse the daily traffic statistics for each site from 8am to 10
am and 5pm to 7pm everyday
Sites having TCH blocking rate equal or greater then 10% aremarked
Based on the statistics, sites existing configuration, availablehardware etc, a decision is taken:
TRX, TRE addition (Motorola, Alcatel,..)
New Site Share the traffic by available neighbour cells (no available
equipment)
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THANK YOU !