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Thread: [3G] RRC Drop Rate

  1. #1
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    Default [3G] RRC Drop Rate

    Hi All,

    I have a topic to open to discussion, I would like to know the effected of KPI "RRC Drop Rate"

    Mostly of nominator is CCCH/DCCH.Unspec,
    also want to know the way to solve this KPI.
    As my exp. this cause can be come from
    -improper drd setting.
    -rnc release due to timer for ASU expried.
    -Ue sent RAU to CN but have no feedback from CN with in time, then RNC will release RRC(cause :Unspecified).

    Formula

    100%*(RRC.AttConnRelCCCH.Cong+RRC.AttConnRelCCCH.Preempt+RRC.AttConnRelCCCH.ReEstRej+RRC.AttConnRelCCCH.Unspec+RRC.AttConnRelDCCH.Cong+RRC.AttConnRelDCCH.Preempt+RRC.AttConnRelDCCH.ReEstRej+RRC.AttConnRelDCCH.Unspec+VS.RRC.ConnRel.CellUpd)
    /
    (RRC.AttConnRelDCCH.Cong+RRC.AttConnRelDCCH.Preempt+RRC.AttConnRelDCCH.ReEstRej+RRC.AttConnRelDCCH.DSCR+RRC.AttConnRelDCCH.UsrInact+RRC.AttConnRelDCCH.Unspec+RRC.AttConnRelCCCH.Cong+RRC.AttConnRelCCCH.Preempt+RRC.AttConnRelCCCH.ReEstRej+RRC.AttConnRelCCCH.DSCR+RRC.AttConnRelDCCH.Norm+RRC.AttConnRelCCCH.Norm+RRC.AttConnRelCCCH.UsrInact+RRC.AttConnRelCCCH.Unspec+VS.RRC.ConnRel.CellUpd+VS.DCCC.Succ.F2P+IRATHO.SuccOutCS+IRATHO.SuccOutPSUTRAN+VS.DCCC.Succ.F2U+VS.DCCC.Succ.D2U)

    Thx.
    pornpang
    Last edited by pongpang; 2017-01-03 at 08:05 PM

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