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View Full Version : Original Guide for Setting the VSWR Alarm Threshold Huawei BTS



sabila
2013-02-12, 10:58 AM
Dear all,
one document from huawei about VSWR
may can help your network more better,

3167931680

page list

1.1 VSWR Principles
1.2 Method of Calculating VSWR
1.3 Impact of VSWR on BTS Coverage

2.1 VSWR Detection Precision of Typical Modules and Analysis of VSWR Alarms
2.2 Analysis of VSWR Alarms Caused by Insufficient Isolation of Indoor Distributed Antenna Components

3.1 Suggestions on Setting the VSWR Alarm Threshold in Swapping Projects
3.2 Suggestions on Setting the VSWR Alarm Threshold in Newly Deployed Projects

for second doc

Detecting Faults in the Antenna System Through the Difference Between Main and Diversity Levels 6
1.1 Principles 6
1.2 Measurement and Details 6
1.2.1 Comparison of the Measurement When the BSC6000 and the BSC6900 Are deployed 6
1.2.2 Definition of the Counter S4501 8
1.2.3 Definition of the Counter S4502 9
1.2.4 Definition of the Counter S4503 10
1.2.5 Definition of the Counter S4556 11
1.2.6 Definition of the Counter S4557 11
1.2.7 Definition of the Counter S4566 (Similar to that of Counter S4502 Except That S4566 Shows the Accumulated Value in dbm) 12
1.2.8 Definition of the Counter S4567 (Similar to that of Counter S4503 Except That S4567 Shows the Accumulated Value in dbm) 12
1.3 Tool Instructions 12
1.3.1 Excel Tool and Instructions 12
1.3.2 OMStar Tool and Instructions 15
1.3.3 M2000 Tool and Instructions 16
1.4 Locating the Faulty Point Based on Data Configuration 17
1.4.1 Viewing Data Configuration 17
1.4.2 Locating the Faulty Point 22
1.5 Detecting Faults 24
2 Identifying Inverse Antenna Connection Between Cells on the Same Site Through Inter-Cell Measurement 25
2.1 Principles 25
2.2 Necessary Data Sources and Format Requirements 25
2.2.1 Requirements for the Project Parameters Worksheet 25
2.2.2 Requirements for the Outgoing Inter-Cell Handover Measurement (GSM Cell-GSM Cell) 26
2.2.3 FAQs for Measurement or Project Parameter Analysis 27
2.3 Tool Instructions 27
2.3.1 Tool 27
2.3.2 Instructions 27
2.4 Suggestions on Fault Detection 32
2.5 Detecting Inverse Antenna Connection 32
3 Detecting Downlink Faults Through Power Querying and Comparison 33
3.1 Principle 33
3.2 Fault Detection Procedure 33
3.3 How to Identify a Fault 34
4 Detecting Downlink Channel Faults Through the Downlink Level Difference Between Channel-A and Channel-B 35
4.1 Principle 35
4.2 Necessary Data Sources 35
4.3 Tool Instructions for the BSC6000 36
4.3.1 Tool 36
4.3.2 Tracing Signaling 36
4.3.3 Saving the Measurement Report as Text Files 38
4.3.4 Analyzing Data Using the Tool 39
4.4 Tool Instructions for the BSC6900 40
4.4.1 Tool 40
4.4.2 Tracing Signaling 40
4.4.3 Saving Traced Files as CSV Files 43
4.4.4 Analyzing Data Using the Tool 43
4.5 Processing Guide 44
4.5.1 Identifying the Distribution of TRX Downlink Channels Based on Data Configuration 44
4.5.2 Checking the Difference Between Channel A and Channel B on the Downlink 44
4.5.3 Locating the Faulty Point 45
4.5.4 How to Determine Whether a Fault Is cleared 45