GSM BSS Network KPI (Inter-RAT Handover Success Rate) Optimization Manual

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GSM BSS Network KPI (Inter-RAT Handover Success Rate) Optimization Manual

Contents
1 Definition of the Inter-RAT Handover Success Rate
1.1 Definition
1.2 Recommended Formulas
1.2.1 Success Rate of Incoming Inter-RAT Inter-Cell Radio Handover
1.2.2 Success Rate of Outgoing Inter-RAT Inter-Cell Radio Handover
1.3 Signaling Procedure and Measurement Points
2 Influencing Factors
2.1 Hardware Failure
2.2 Transmission Problems
2.3 Version Upgrade
2.4 MS Problems
2.5 Improper Parameter Settings
2.6 Unbalanced Traffic Volume
2.7 Intra-Network and Inter-Network Interference
2.8 Coverage Problems
3 Analysis Process and Optimization Method
3.1 Analysis Process
3.2 Problem Location and Optimization Methods
3.2.1 Checking the Hardware Status of the Cells with High Inter-RAT Handover Success Rate
3.2.2 Checking the Transmission in the Cells with High Inter-RAT Handover Success Rate
3.2.3 Checking the Problems Caused by BSC Version Upgrade and BTS Version Upgrade
3.2.4 Checking the Parameter Settings in the Cells with High Inter-RAT Handover Success Rate
3.2.5 Checking the Interference in the Cells with High Inter-RAT Handover Success Rate
3.2.6 Checking the Conditions of Coverage, Antenna, and Balance Between Uplink and Downlink in the Cells with High Inter-RAT Handover Success Rate
3.2.7 Checking the Repeaters in the Cells with Low Inter-RAT Handover Success Rate
4 Test Methods
5 Optimization Cases
5.1 Case 1: Data Configuration
5.2 Case 2: Inter-RAT Handover Success Rate Decreasing Caused by Data Configuration
6 Information Feedback


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