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SPDCH

Viewing 15 posts - 46 through 60 (of 61 total)
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  • #57782 Reply
    safar
    Guest

    Hi sheldon,

    thats right buddy i want to clear one thing that per pset we can handle 32 tbf total or dl 32 + ul 32 = 64 tbf?

    and per pdch we have max 16 in dl and 7 in ul ok.

    then if i have 6 fpch + 1 spdch in my one pset then how many can i hadle? is it 32 ?
    or per pdch i mean 7 pdch * (16 dl+7 ul tbf) 23?

    #57783 Reply
    SHELDON
    Guest

    Safar,

    The 32 TBFs per PSET applies to each direction (ie, 32 DL, 32 UL).

    If you have 7 (or 8) PDCHs in a PSET, the maximum number of TBFs in the PSET is 32 (this is a repetition).

    Regards,
    SHELDON

    #57784 Reply
    Prabeen
    Guest

    Hey,

    Could anyone help me, saying how much percent of RPP should i reserve for On demand pdch.

    #57785 Reply
    safar
    Guest

    Hi prabeen,

    for that u have to calculate how many magazine and how many rpp are in that.

    generaly it is 20% .and it depends on operator.

    #57786 Reply
    Prabeen
    Guest

    Am having 21 RPP card for each BSC. N in a BSC ther r around 120 sites.

    Is there any formula to calculate the same.

    #57787 Reply
    Aly
    Guest

    Dear,
    I am ugrading one site from single band to MBC structure. But some of TRX are not coming up and am getting BPCFAIL in the result column ( from Rxcdp cmd printout)
    Please need your help

    #57788 Reply
    SUNIL KAUL
    Guest

    DOES HUAWEI BSC6000 sending Undecoded PDU in status msg to SGSN endor without any PDU

    #57789 Reply
    badara
    Guest

    Plz,need help urgently.
    I have configured a new E1 as Gb interface. But the NSVC is coming up and am getting NSVC not operational alarm in my BSC.
    The NSVC block status is ABL.

    #57790 Reply
    Ebrahim
    Guest

    Hi,

    My Friends, we have high congestion in GSL. we changed TBFDLLIMIT and TBFULLIMIT to 10. but high congestion exist yet. throughput is not reasonable. could you please help us to solve this issue. ( we can’t add more PCU)!

    Thanks in advance.

    #57791 Reply
    SHELDON
    Guest

    With regard to abis allocation, there is no difference between SPDCH and FPDCH. Both are allocated fixed timeslots if you’re using a fixed scheme or dynamically if you’re using flexible abis. The only difference between SPDCH and FPDCH relates to how they are treated on the PCU. The PCU allocates fixed resources (GSL) for FPDCH and on-demand resources for SPDCH.

    #57792 Reply
    SHELDON
    Guest

    Sorry about the superfluous post. I was reading the thread in reverse…lol

    @Ebrahim,

    If you’re having GSL congestion, you should be increasing TBFULLIMIT and TBFDLLIMIT, not decreasing them!

    What kind of PDCH allocation strategy are you using? Fixed? On-demand? Semi-dedicated?

    #57793 Reply
    pix
    Guest

    thanks sheldon for the clarification on spdch and fpdch. our client is using fpdch and wonder why their BSC are so congested… we’re trying to convince them to use spdch 😀

    #57794 Reply
    Ebrahim
    Guest

    Sheldom,

    Thanks, you are right, we increased the DL and UL TBFLIMIT but LLC Throughput decreased and operators is not satisfy 😀
    we are set one FPDCH for each cell.
    also on demand is active.

    #57795 Reply
    SHELDON
    Guest

    No problem Pix…we’re all here to share knowledge and experiences. SPDCH is surely the way to go.

    Ebrahim,

    If possible, try converting your FPDCH to SPDCH. Depending on the contract you signed with your vendor, this may be free. SPDCH gives you the same advantages as FPDCH, but with flexible allocation of PCU resources.

    #57796 Reply
    Ebrahim
    Guest

    Dear SHELDON,

    tnx. we can’t do it because customer complaint will be increase ;). I want know do you have any more solutions?! 😀

Viewing 15 posts - 46 through 60 (of 61 total)
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