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SDCCH blocking is high

Viewing 15 posts - 46 through 60 (of 62 total)
  • Author
    Posts
  • #45845 Reply
    Ahmed
    Guest

    One reason for SD blocking is high paging load due to increased number of location updates in a certain location area.

    #45846 Reply
    rama narayan
    Guest

    how to sove the calldrop problem after high handover failure

    #45847 Reply
    Yogesh
    Guest

    Hi
    Can anyone explain in Nokia system (BMA) Bts measurement averaging.
    presently its value is set to 1, what happens if i will make it 4 i.e. max

    #45848 Reply
    Sush D Rock
    Guest

    Guys Please give me an explanation about “How SDCCH Drop is being affected by Location updates and LAC boundaries?”

    Thank you in advance.
    Please need it urgently.

    #45849 Reply
    vivek
    Guest

    I have High TCH RF loss in Some Cells kindly suggest me wht could be the reasons as i m new in optimization.

    #45850 Reply
    xiaomutou
    Guest

    Actually the most often reasons behind SD blocking are :

    1- poor coverage
    2- improper TXinteger setting
    3-LAPd delay (transmissio)
    4-Cochannel/Co BSIC interference
    5-UL interference + Fake access requests
    6-Overshooting.

    hope that helps

    #45851 Reply
    Lohi Daniels
    Guest

    Pls what does SD blocking cause on the network?

    #45852 Reply
    Subinay Dey
    Guest

    Hi!
    Friends

    Can You Tell Me How Can I Define HSN & MAIO of 3 sector of a site(config-2.2.2).

    Waiting for your reply.

    #45853 Reply
    teleman
    Guest

    first change hardware in most of case due to hardware malfunctioning it happen,

    after change if still not resolve than shift BCCH on different TRX,

    If still not resolve change BCCH trx from Hopping to No-hopping mode,

    if still not resolve enable TCH immediate assign

    for complete doc on SDCCH get from below,

    http://www.telecomsource.net/showthread.php?179-Nokia-2G-SDCCH-Study

    #45854 Reply
    Sandeep Khokhar
    Guest

    reasons for SDCCH & TCH drop ?

    Regards
    Sandeep

    #45855 Reply
    Zahid Khan
    Guest

    Hay friends! if a multicoupler is faulty or isnt working properly then u can get SD blocking issue.

    #45856 Reply
    ALI SIDICK
    Guest

    Hi

    I have a probleme when i am postprocessing the logfile of drive test,the rate of call failure is more that call set up success? this is due to:

    Can anyone help us to get more explanation about call summaries (to help you to know your account and your call details durations),it is possible that can affect the incomming call?

    #45857 Reply
    Rasta Bum2
    Guest

    Hi Mr. i have problem on high SD blocking but not on TCH blocking, on some cell that contribute found some transmission alarm (radio link failure, radio signaling link disconnected), whether this alarm affected to SD blocking??
    I already add more SD channel but still blocking…

    Thank’s

    #45858 Reply
    pix
    Guest

    hi rasta bum,

    Please check the number of SDCCH requests or attempts made per hour in the cell.
    Plot this on an hourly graph, along with the SDCCH blocking rate.
    Do you notice a high number of requests when the congestion is high ?
    Then, find the indicator “sdcch congestion time” -> how high is this indicator during the hour when blocking is high ?

    regards
    pix

    #45859 Reply
    Abdelkerim Fadoul
    Guest

    Reason SDCCH for TCH drop call and on different TRX.

    best regard
    Fadoul

Viewing 15 posts - 46 through 60 (of 62 total)
Reply To: SDCCH blocking is high
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