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Thread: KPI's Degradation on the Huawei 3900

  1. #1
    Member Reputation: 58
    Join Date
    2010-10-09
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    Default KPI's Degradation on the Huawei 3900

    Hi,

    these is a case that happens on the 3G network. Nobody knows why it happens but here is a way to fix it.

    I hope is usefull.

    Regards.
    Attached Files Attached Files

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  3. #2
    VIP Member Reputation: 1337
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    Default Re: KPI's Degradation on the Huawei 3900

    Quote Originally Posted by alcatraz View Post
    Hi,

    these is a case that happens on the 3G network. Nobody knows why it happens but here is a way to fix it.

    I hope is usefull.

    Regards.
    I dont know why you put file like this one in attachment. It is very-very short (2 pages) and It has Only little bit information. If you want to get rep, thank and credit from other guys, Do not share file in attachment. I do not recommend to other guys to download attachment file.

  4. #3
    Member Reputation: 58
    Join Date
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    Default Re: KPI's Degradation on the Huawei 3900

    Well I put it on a file because it is a procedure and a real case. Too bad that you're worried for the size or form. Anyway the idea here is to help other people. I hope that the one who download it find it usefull.

    How ever here it's a copy and paste for the ones that find so harmfull to dowload it.

    BR.


    General Information

    Title
    Full Degradation on the Node B Kpi’s
    Information Type
    Troubleshooting
    Author
    Fernando Diaz
    Author Mail
    Technology
    3G CS y PS
    Product
    Node 3900
    Problem Description

    Problem Description
    When the Node B has a good performance suddenly in all it’s sectors a complete degradation of the Kpi’s is showed.
    Alarms/Events Presented
    Periodical Alarms off:
    RRU Tx Branch Switch Off
    Tx Branch Switch On
    KPI Affected
    CS Accessibility %
    PS Accessibility%
    HSDPA Accessibility %
    CS Drop %
    PS Drop %
    HSDPA Drop %
    Active Set Update %
    CS Outgoing iRAT %
    Traffic (equiv. erl.)
    Counters Affected
    VS.RAB.Loss.CS.RF.RLCRst
    VS.RAB.Loss.PS.Abnorm
    VS.HSDPA.RAB.Loss.Abnorm.NonRF
    VS.RRC.FailConnEstab.Cell
    Cause Analysis
    Unknown
    Handling Process
    The event alarmas are checked to see if there exists an unusual behavior on the Node. To see the alarms yo must go to the M2000 > Topology > Main Topology, locate the Node, right click on and select Query Alarm > Event Alarm. Here it must appear a periodical set of alarms of RRU Tx Branch Switch Off and On.
    After identifying this issue the procedure is to manually reset the Node (RST NODEB), with this action the node gets fixed.
    Suggestions/Comments
    Check the RTWP Graphics, to see if it has high peaks similar to this case.
    Check if there are a lot off RRC failures, a good part of them due to Registration.
    Graphs/Attachments



    < RTWP Graphics>



    <Event Alarmas>


  5. #4
    VIP Member Reputation: 1337
    Join Date
    2010-03-25
    Location
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    Default Re: KPI's Degradation on the Huawei 3900

    Quote Originally Posted by alcatraz View Post
    Well I put it on a file because it is a procedure and a real case. Too bad that you're worried for the size or form. Anyway the idea here is to help other people. I hope that the one who download it find it usefull.

    How ever here it's a copy and paste for the ones that find so harmfull to dowload it.

    BR.


    General Information

    Title
    Full Degradation on the Node B Kpi’s
    Information Type
    Troubleshooting
    Author
    Fernando Diaz
    Author Mail

    Technology
    3G CS y PS
    Product
    Node 3900

    Problem Description

    Problem Description
    When the Node B has a good performance suddenly in all it’s sectors a complete degradation of the Kpi’s is showed.
    Alarms/Events Presented
    Periodical Alarms off:
    RRU Tx Branch Switch Off
    Tx Branch Switch On
    KPI Affected
    CS Accessibility %
    PS Accessibility%
    HSDPA Accessibility %
    CS Drop %
    PS Drop %
    HSDPA Drop %
    Active Set Update %
    CS Outgoing iRAT %
    Traffic (equiv. erl.)
    Counters Affected
    VS.RAB.Loss.CS.RF.RLCRst
    VS.RAB.Loss.PS.Abnorm
    VS.HSDPA.RAB.Loss.Abnorm.NonRF
    VS.RRC.FailConnEstab.Cell
    Cause Analysis
    Unknown
    Handling Process
    The event alarmas are checked to see if there exists an unusual behavior on the Node. To see the alarms yo must go to the M2000 > Topology > Main Topology, locate the Node, right click on and select Query Alarm > Event Alarm. Here it must appear a periodical set of alarms of RRU Tx Branch Switch Off and On.
    After identifying this issue the procedure is to manually reset the Node (RST NODEB), with this action the node gets fixed.
    Suggestions/Comments
    Check the RTWP Graphics, to see if it has high peaks similar to this case.
    Check if there are a lot off RRC failures, a good part of them due to Registration.
    Graphs/Attachments



    < RTWP Graphics>



    <Event Alarmas>

    If you want to help us, Pls you share it in web freely. You should not charge us five point credit.

  6. #5
    Junior Member Reputation: 10
    Join Date
    2010-09-16
    Posts
    4


    Default Re: KPI's Degradation on the Huawei 3900

    Is there any way you could share it for junior members?
    Thanks in advance !

    N.

  7. #6
    Member Reputation: 253
    Join Date
    2009-12-31
    Posts
    535


    Default Re: KPI's Degradation on the Huawei 3900

    Hi,

    Can u plz share it on 4Shared?

    Regards//

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