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Thread: LTE Throughput Improvement - Trial

  1. #11
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    Default Re: LTE Throughput Improvement - Trial

    Dear Mounir
    Could you please send this doc to miles.janina@gmail.com


    BR//
    miles



    Quote Originally Posted by mounir34 View Post
    for TM4 i already made the trial ,find the report in below link,thx

    https://www.4shared.com/office/S9-Ej...ive_CL_v3.html

    PS/add reputation if helpful

  2. #12
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    1 out of 1 members found this post helpful.

    Default Re: LTE Throughput Improvement - Trial

    send check your eamail,thx


    Quote Originally Posted by miles12 View Post
    Dear Mounir
    Could you please send this doc to miles.janina@gmail.com


    BR//
    miles

  3. #13
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    Default Re: LTE Throughput Improvement - Trial

    UECapRprtAbnormalCtrlSwitch-0 - I suggest you open this switch to ON. .

    B/R
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  5. #14
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    Default Re: LTE Throughput Improvement - Trial

    dear
    this switchh can imropve the Throughput ? could you pleas give us more deatils about this switch

    from Huawei Product description
    UECapRprtAbnormalCtrlSwitch: If this option is selected, the eNodeB performs differentiated handling on UEs with defects in capability reporting and reduces the service drop rate. If this option is deselected, such UEs have to experience handover failures and service drops.

    Quote Originally Posted by samuraial View Post
    UECapRprtAbnormalCtrlSwitch-0 - I suggest you open this switch to ON. .

    B/R

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  7. #15
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    Default Re: LTE Throughput Improvement - Trial

    Dear,
    Some specific UE have problems or don't send capability info resulting in drops, opening this switch the eNodeB handles them and you improve your QOS for these type of UEs.
    It is not about throughput but about access and specially HO as it is said.
    Tested and helped in my network.


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  9. #16
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    Default Re: LTE Throughput Improvement - Trial

    good,please could you share with us how to check if the UE send the Capability or not,
    thanks

  10. #17
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    Default Re: LTE Throughput Improvement - Trial

    Dear,
    You can check the CHR logs on a eNodeB and look starting from this counter L.E-RAB.AbnormRel.HOFailure as it is an indicator of HO abnormal releases that can come as a result from this type of error you can see in LTE CHR: UEM_UECNT_REL_HO_OUT_PREP_INFO_ENCODE_FAIL.
    If this error is present in your CHR you have problems with some specific UE who fail to send capinfo during HO(X2 etc).
    After checking one CHR of a number you can see that the error in the UEM_RrcMsgHoPrepInfo: Radio UeCap Present is not exists (well eRan FMA developers needs some english lessons ).
    In order to avoid this type of HO drop you need to open this switch as described in the switch description.

    So:

    Check the the counter of L.E-RAB.AbnormRel.HOFailure.
    Check CHR logs from eNodeB brdlog(composite log) by error cause.
    Find the error UEM_UECNT_REL_HO_OUT_PREP_INFO_ENCODE_FAIL
    Check the user CHR log and find the error UEM_RrcMsgHoPrepInfo: Radio UeCap( right click on CHR logs)

    And you finished your analyze of this type of optimization issue(attached can see the pics of errors in CHR logs).

    B/R
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  12. #18
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    Default Re: LTE Throughput Improvement - Trial

    ok i will make 1 trail and update to you ,thanks for your helpful description

    Quote Originally Posted by samuraial View Post
    Dear,
    You can check the CHR logs on a eNodeB and look starting from this counter L.E-RAB.AbnormRel.HOFailure as it is an indicator of HO abnormal releases that can come as a result from this type of error you can see in LTE CHR: UEM_UECNT_REL_HO_OUT_PREP_INFO_ENCODE_FAIL.
    If this error is present in your CHR you have problems with some specific UE who fail to send capinfo during HO(X2 etc).
    After checking one CHR of a number you can see that the error in the UEM_RrcMsgHoPrepInfo: Radio UeCap Present is not exists (well eRan FMA developers needs some english lessons ).
    In order to avoid this type of HO drop you need to open this switch as described in the switch description.

    So:

    Check the the counter of L.E-RAB.AbnormRel.HOFailure.
    Check CHR logs from eNodeB brdlog(composite log) by error cause.
    Find the error UEM_UECNT_REL_HO_OUT_PREP_INFO_ENCODE_FAIL
    Check the user CHR log and find the error UEM_RrcMsgHoPrepInfo: Radio UeCap( right click on CHR logs)

    And you finished your analyze of this type of optimization issue(attached can see the pics of errors in CHR logs).

    B/R

  13. #19
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    Default Re: LTE Throughput Improvement - Trial

    below is good example for test i think



    Class 1 Cause Class 2 Cause Class 3 Cause Counter Stat Percent
    L.E-RAB.AbnormRel.Radio     327 74.83%
      L.E-RAB.AbnormRel.Radio.SRBReset   41 9.38%
      L.E-RAB.AbnormRel.Radio.DRBReset   218 49.89%
      L.E-RAB.AbnormRel.Radio.ULSyncFail   65 14.87%
      L.E-RAB.AbnormRel.Radio.UuNoReply   1 0.23%
      L.E-RAB.AbnormRel.Radio.Other   0 0.00%
    L.E-RAB.AbnormRel.TNL     0 0.00%
      L.E-RAB.AbnormRel.TNL.PreEmp   0 0.00%
      L.E-RAB.AbnormRel.TNL.Load   0 0.00%
      L.E-RAB.AbnormRel.TNL.Other   0 0.00%
    L.E-RAB.AbnormRel.Cong     0 0.00%
      L.E-RAB.AbnormRel.Cong.PreEmp   0 0.00%
      L.E-RAB.AbnormRel.Cong.Load   0 0.00%
      L.E-RAB.AbnormRel.Cong.Other   0 0.00%
    L.E-RAB.AbnormRel.HOFailure     110 25.17%
    L.E-RAB.AbnormRel.HOOut     0  
    L.E-RAB.AbnormRel.eNBTot     597  
    L.E-RAB.AbnormRel.UlWeak.VoIP     0  
    L.E-RAB.AbnormRel.Other     0 0.00%
    L.E-RAB.Rel.S1Reset.eNodeB     0  
    L.E-RAB.AbnormRel.MMETot     0  
      L.E-RAB.AbnormRel.MME   0  
        L.E-RAB.AbnormRel.MME.EUtranGen 0  
    L.E-RAB.AbnormRel.MME.HOOut     805  
    L.E-RAB.Rel.S1Reset.MME     0  
    L.HHO.Prep.FailIn.HOCancel   0  
    L.HHO.Prep.FailIn   0  
      L.HHO.Prep.FailIn.FlowCtrl   0  
    L.HHO.Prep.FailIn.AdmitFail   0  
      L.HHO.Prep.FailIn.AdmitFail.Load 0  
      L.HHO.Prep.FailIn.AdmitFail.SRS 0  
      L.HHO.Prep.FailIn.AdmitFail.PUCCH 0  
    L.HHO.Prep.FailIn.AdmitFail.ULThrpLic 0  
    L.HHO.Prep.FailIn.AdmitFail.DLThrpLic 0  
      L.HHO.Prep.FailIn.AdmitFail.UserLic 0  
    L.HHO.Prep.FailIn.AdmitFail.UserSpec 0  
      L.HHO.Prep.FailIn.AdmitFail.TNL.DLRes 0  
      L.HHO.Prep.FailIn.AdmitFail.TNL.ULRes 0  
    L.HHO.Prep.FailIn.AdmitFail.Other 0  
    L.HHO.Prep.FailIn.Other 0  
    L.HHO.Prep.FailIn.TNL 0  
    L.HHO.Prep.FailIn.RNL 0  
    L.HHO.Prep.FailOut.MME   1  
    L.HHO.Prep.FailOut.NoReply   0  
    L.HHO.Prep.FailOut.PrepFailure   0  
    L.HHO.Prep.FailOut.HOCancel 0  
    L.HHO.Prep.FailOut.TargetIllegal 0  
    L.HHO.Prep.FailOut.RNL 0  
    L.HHO.Prep.FailOut.TNL   0  
    L.HHO.Prep.FailOut.Other   0  
    L.HHO.FailOut.HOCancel 104  
    L.UECNTX.AbnormRel 597  
    L.UECNTX.Rel.eNodeB.Rnl 597  
      L.UECNTX.Rel.eNodeB.UeLost 447  
      L.UECNTX.Rel.eNodeB.HOFailure 145  
    L.UECNTX.AbnormRel.UlWeak 386  
    L.UECNTX.AbnormRel.Act 437  
    L.UECNTX.Rel.MME.AbnormRel.Act 0  
    L.UECNTX.Rel.S1Reset.eNodeB   0  
    L.UECNTX.Rel.S1Reset.MME 0  
      L.UECNTX.Rel.eNodeB.InitAttEst.MMENoReply 0  
      L.UECNTX.Rel.MME.AbnormRel.Init 19  
        L.UECNTX.FailEst.RNL 1  
      L.UECNTX.FailEst.NoRadioRes 0  
             
    Quote Originally Posted by mounir34 View Post
    ok i will make 1 trail and update to you ,thanks for your helpful description

  14. #20
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    Default Re: LTE Throughput Improvement - Trial

    Yep you have a nice test case just see if you can find the ENCODE_FAIL reason and you are good to go.

    B/R
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