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D/L TBF establishment

Viewing 7 posts - 16 through 22 (of 22 total)
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  • #58608 Reply
    vikas
    Guest

    What are the reasons & solution for the uplink & downlink TBF DROP?

    #58609 Reply
    Ds
    Guest

    Hi,
    can anyone explain extended UL TBF feature.
    how and why TBF drop increases after enabling this feature

    #58610 Reply
    TMN
    Guest

    Hi every one,
    can anyone share the formula for TBF Establishment Success Rate for nokia bss?

    #58611 Reply
    manish
    Guest

    how we can increase the UL TBF success ratio in Nokia system

    #58612 Reply
    varun
    Guest

    what factor affect TBF ,how can i improve TBF.tell me about parameter pls tell me about that.

    #58613 Reply
    Praveen
    Guest

    Hi All,
    I have one concern in GPRS technology.Which KPI parameter we are using to Indicate the PACKET error Rate(Like Evdo in PER and UMTS BLER)?.
    can you please help me on this issue?

    Thanks,
    Praveen

    #58614 Reply
    pix
    Guest

    praveen,

    there is no direct measurement, like BLER or PER, etc. So you have to look for an “effect” of BLER. And that’s going to be:

    1/ the coding scheme used (CS1 CS2 CS3 CS4, MCS1 MCS2 MCS3…. MCS9)
    –> problem : this usage is also impacted by your system congestion, so it’s not clear-cut whether there is congestion when the MCS is bad.

    2/ the rate of retransmission –> this one is much more useful

    Regards
    pix

Viewing 7 posts - 16 through 22 (of 22 total)
Reply To: D/L TBF establishment
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