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CONTENTS Introduction Background Literature Review Optimization Objectives Proposed Methodology Expected Outcomes Discussion on Results Conclusion Reference
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
MOTIVATION Challenging area of research Comprehensive knowledge on the subject Day-to-day learning
PLANNING & OPTIMIZATION RELATIONSHIP Planning Optimization Implementation Site survey Capacity Evaluate Coverage Frequency interference Optimization Parameter design
PLANNING NETWORK EVALUATION PATH1. Basic coverage deployment2. The first capacity extensions and coverage enhancement deployment (indoor coverage)3. Intelligent capacity enhancement deployment with strong indoor coverage improvement4. Base station coverage area splitting/microcellular/dual band deployment, to further improve coverage/capacity/quality
PLANNING STEPS Frequency Coverage LAC Interference Propagation Capacity Channel Neighbor cell Site survey Coverage Parameter E-map
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.
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.
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
EXPECTED OUTCOMES Good signal coverage at macro and micro sites Rx Quality level should be good No interference issue
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