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Thread: All about tch congestion & its analysis with some interesting case studies

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    All about tch congestion & its analysis with some interesting case studies

    TABLE OF CONTENT
    1 Definition of the TCH Congestion Rate
    1.1 Definition
    1.2 Recommended Formula
    2 Impacts of TCH Congestion Rate
    3 Influencing Factors of TCH Congestion Rate
    3.1 Network Capacity and Traffic Distribution
    3.2 Faults Occurred During Equipment Installation, Transmission, or on Hardware
    3.3 Network Interference
    3.4 Incorrect Parameter Settings
    3.5 Cooperation with Third-party Devices
    3.6 Software Version Problem
    4 Analysis Procedure and Optimization Method
    4.1 Network Capacity and Traffic Distribution
    4.1.1 Traffic Balancing
    4.1.2 Traffic Distribution Environment
    4.2 Fault Occurred During Equipment Installation and On Hardware
    4.2.1 Feeder Installation and Fault
    4.2.2 Board faults
    4.2.3 Transmission and Clock Problem
    4.3 Interference Causes
    4.3.1 Inter-Network Interference
    4.3.2 Improper Frequency Planning
    4.4 KPI Measurement Problems
    4.5 Parameter Settings
    4.5.1 Channel Assignment Parameters
    4.5.2 Call Control Parameters
    4.5.3 Handover Parameters
    4.5.4 Basic Cell Parameters
    4.6 Third-Party Device Problems
    4.6.1 Repeater Problems
    4.6.2 Compatibility with Non-Huawei Equipment
    4.6.3 2G/3G Interoperability
    4.7 Software Version Problem
    5 Test Method
    6 Appendix Check Items on TCH Congestion Rate
    7 Typical Cases
    7.1 Case 1: TCH Congestion Caused by Terrain Reasons
    7.2 Case 2: High TCH Congestion Rate Caused by Fault of TRX Board
    7.3 Case 3: Static TCHH Congestion Caused by Insufficient TCHFs
    7.4 Case 4: Increase of TCH Congestion Rate Caused by Improper Half-Rate Parameters after Upgrade from BSC C10 to BSC C13
    7.5 Case 5: Increase of TCH Congestion Rate Caused by Modification of Default Value of Handover Threshold
    7.6 Case 6: Increase of TCH Congestion Rate Caused by Reverse Connections of Antennas
    7.7 Case 7: High TCH Congestion Rate Due to No Capacity Expansion of Repeaters after BTS Capacity Expansion from O2 to O4
    7.8 Case 8: Interference Caused by Repeaters
    7.9 Case 9: TCP Congestion Caused by External Interference

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  3. #2
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    what is vender plz/


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    Huawei/////////


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    Difficulte for me to down load who can send it to me :richardad_2003@yahoo.fr


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    I think you dont have sufficient credit please upload good document than you are able to download it.


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