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Table of Contents
1. Introduction 7
1.1. Purpose & Scope 7
1.2. Definitions for this Document 7
2. UMTS technology in brief 10
2.1. Architecture 11
2.2. UTRAN Interfaces 11
3. Phases of Network Optimization 13
3.1. Objective 13
3.2. Optimization / Acceptance Phases 13
4. Cluster Optimization 14
4.1. Objective 14
4.2. Process Flow 15
4.2.1. Cluster Unloaded Optimization 15
4.2.2. Cluster Loaded Optimization 16
4.3. Actix Spotlight Post Processing 19
4.3.1. ACTIX Spotlight – Setup & Loading Log files 19
4.3.1.1. Creating a Project Template 19
4.3.1.2. Creating a Spotlight Project 23
4.4. Log Files Analysis 26
4.4.1. Swap Sector and SC Inconsistency Check Analysis 28
4.4.2. Azimuth Verification 31
4.4.3. Sector Coverage / Boomer Cell Analysis 32
4.4.4. Coverage Analysis 32
4.4.4.1. RSCP – DL Coverage Optimization 33
4.4.4.2. Ec/No – Pilot Dominance Optimization 36
4.4.4.3. UE Transmit Power – UL Coverage 39
4.4.4.4. Downlink BLER – Quality 40
4.4.4.5. Coverage Analysis – Deliverables 41
4.4.5. Pilot Pollution Analysis 42
4.4.5.1. Spotlight Cell Pollution Analysis 42
4.4.5.2. Identifying Polluting Cells 45
4.5. Over-Propagating Cell Identification 46
4.5.1. Spotlight Boomer Cell Analysis 46
4.5.2. Identifying Over-Propagating Cells 47
4.6. UMTS Neighbor List Analysis 48
4.6.1. Missing Neighbor Analysis 50
4.6.2. SHO Overhead Analysis 53
4.7. Access Failure Analysis 55
4.7.1. Spotlight Access Failure Analysis 57
4.7.2. Access Failure Causes 61
4.7.2.1. RACH Access Troubleshooting 65
4.7.2.2. RRC Setup Troubleshooting 68
4.8. Drop Call Analysis 71
4.8.1. Drop Call Causes 72
4.8.2. Drop Call Analysis in Spotlight 76
4.9. Packet Session Data Analysis 79
4.9.1. R99 DCH Low Throughput Analysis 80
4.9.2. Using Actix To Identify Low R99 Throughput 81
4.9.3. Using Actix To Analyze Low R99 Throughput 87
4.9.4. HSDPA Low Throughput Analysis 92
4.9.5. Using Actix To Identify Low HSDPA Throughput 92
4.9.5.1. Event Explorer 92
4.9.5.2. Drill Down 94
4.9.5.3. Additional Attributes 95
4.9.6. Using Actix To Analyze Low HSDPA Throughput 101
5. Market Level Optimization 107
5.1. Objective 107
5.2. Process Flow 108
5.2.1. Market Loaded Optimization 108
5.3. IRAT Handover Failure Analysis 110
5.3.1. Identifying IRAT Handover Failures: 110
5.3.2. IRAT Handover Failure Trouble Shooting Process 112
5.3.3. Global IRAT handover failures: 114
5.3.3.1. IRAT prerequisites: 114
5.3.4. Cell Specific IRAT failures 115
5.3.4.1. Preparation Phase Failure 117
5.3.4.2. Execution phase failures. 119
5.3.4.3. Confirmation phase failures 122
6. Reference 123
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Originally Posted by simmus0300
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