3. SYNOPSIS
In this presentation, you will learn how the GSM
network planning is done.
Drive testing to gather radio statistics
Analyze the network performance
Proposed solutions to resolve issue or meet KPI
benchmark
4. MOTIVATION
Challenging area of research
Comprehensive knowledge on the subject
Day-to-day learning
6. PLANNING & OPTIMIZATION RELATIONSHIP
Planning Optimization
Implementation
Site survey
Capacity
Evaluate
Coverage
Frequency
interference Optimization
Parameter
design
7. PLANNING NETWORK EVALUATION PATH
1. Basic coverage deployment
2. The first capacity extensions
and coverage enhancement
deployment (indoor coverage)
3. Intelligent capacity
enhancement deployment
with strong indoor coverage
improvement
4. Base station coverage area
splitting/microcellular/dual
band deployment, to further
improve
coverage/capacity/quality
8. PLANNING STEPS
Frequency
Coverage LAC
Interference
Propagation
Capacity Channel
Neighbor cell
Site survey
Coverage Parameter
E-map
9. DATA COLLECTION
Data of network plan
Network basic information collection
Let’s begin! The base of network plan and optimization
The engineering survey data of new sites
Confirm the network plan information.
The Engineering data of the current network
Understand the current network .
The configuration NMS data.
Understand the current network configuration.
Collection of various performance reports of the
currently deployed network.
Subscribers’ complain
The supplement information showing the
network quality.
11. OPTIMIZATION OBJECTIVES
Finding and correcting any existing problems after site
implementation and integration.
Meeting the network quality criteria agreed in the contract.
Optimization will be continuous and iterative process of
improving overall network quality.
Optimization can not reduce the performance of the rest
of the network.
Area of interest is divided in smaller areas called clusters
to make optimization and follow up processes easier to
handle.
12. PROPOSED METHODOLOGY
Problem Analysis
Conduct Drive testing
Gather statistics
Subject to investigage (Faulty TRX, Coverage
overlaps, drop calls, capacity & interference
issues)
Simulate real-time scenario on TEMS (after
DT)
Export into MAPInfo to check cell overshoot
coverage, etc
Propose solution
13. EXPECTED OUTCOMES
Good signal coverage at macro and micro
sites
Rx Quality level should be good
No interference issue
26. CONCLUSION
• Satisfactory coverage and quality were found
• In most of the location, additional walk test
has been carried out where Operator hasn’t
deployed micro layer
• Macro sites should provide coverage to
mobile users located in open environment