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Grade of Service

Viewing 15 posts - 16 through 30 (of 125 total)
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  • Author
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  • 25th March 2002 at 13:57 #33330
    Jose Quintero
    Guest

    Asaaf,

    Let me know your address to send it you a File

    Regards

    25th March 2002 at 16:58 #33331
    Assaf Peled
    Guest

    it’s peled_assaf@hotmail.com
    or asaf@tti-telecom.com
    thanks a lot

    5th May 2002 at 16:38 #33332
    Nouman Mahmood
    Guest

    Grade of Service (or GOS) is the probability of a subscriber finding
    Congestion. Congestion means that all circuits are busy and no
    Switch path is available. Thus, a higher GOS means poor Service.

    A GOS 0.01 means 1 out of every 100 call is lost(or rejected) due
    to congestion on circuits.

    Lets assume:

    X = (( Traffic in Erlangs)^ n) / n!

    SIGMA Y = (( Traffic in Erlangs)^ k) / k! ; k = 0 to k=n

    GOS = X / SIGMA Y

    Where n = Total no. of Circuits (or channels) avaible.

    28th May 2002 at 18:02 #33333
    Adriana Infante
    Guest

    Hello,

    I work in ETB ( Empresa de Telecomunicaciones de Bogota), The biggest telecomunication company of my country, and I want to ask you, about How can I, get QOS over different tecnolo., for example, we have about 2.700.000 lines , some of those are EWSD ( Siemenes ) or AXE (Ericcson) or FETEX (Fujitsu),

    Thank you for your answer!

    PD. If someone can send me an excel of gos matrix to luz_infl@etb.com.co

    HAve a Nice day!

    AIL

    5th June 2002 at 17:02 #33334
    Jose Quintero
    Guest

    Adriana,

    The GOS does not depend of Technology or Manufacture. It come from other variables.

    The Number of Trunks that you available, The traffic in erlang that you expect to have.

    With those value you will have de GOS..

    Regards

    Jose Quintero

    2nd July 2002 at 15:47 #33335
    Deepa
    Guest

    I need an erlang B and erlang c table? i need to bring them for my test next week..
    would anyone please tell me where i could get a copy of those

    3rd July 2002 at 13:18 #33336
    Adriana Infante
    Guest

    What do you think? about :

    GOS = Fails + congest
    —————— * 100
    Calls

    10th July 2002 at 07:35 #33337
    Naveen Kumar
    Guest

    What is the relation between GOS ,BHCA and traffic (in Erlangs)?

    How can we calculate the traffic on E1 if we know the BHCA of our system?

    What will happen if on a system with BHCA rating of 1 million ,5 million subscribers are calling at a time?

    26th July 2002 at 13:19 #33338
    Zubair A.Khurshid
    Guest

    I am evaluating WLL netwrok on CDMA2000-One. I am looking for evaluating number of digital trunks (E1s)required by calculating erlangs and determining GoS. Can anybody send me GoS matrix in excel at zubair@dancom.com.pk

    27th July 2002 at 12:36 #33339
    Mehmet Beyaz
    Guest

    Hi Joan,
    GoS is basically the probability (P)of callers will be blocked (congestion). P=GoS usually % 2 for cells and GoS= %0.1.
    For some callers not able to establish a call or get a service at the first attempt.
    Regards
    Mehmet Beyaz
    Do not hesitated to contact me if you have further questions
    mehmet.beyaz@ttgint.com

    28th July 2002 at 17:05 #33340
    Zubair A.Khurshid
    Guest

    Hi Mehmet

    Can you knidly send me the GoS matrix excel sheet on my e-mail address

    zubair@dancom.com.pk

    29th July 2002 at 14:32 #33341
    Jose Quintero
    Guest

    Afriana,

    Yeas you are right, The gos 1% for example,

    Means: for each 100 call one call will be droped.

    REgards

    JIQ

    29th July 2002 at 15:34 #33342
    Zubair A.Khurshid
    Guest

    Dear Jose,

    Then what is the range of GoS that should be chosen in a network design?

    Regards,
    Zubair

    29th August 2002 at 07:06 #33343
    kristhudass rabert
    Guest

    Dears….

    I am Dip.in Electrical but i got job in telecom; WLL technology.

    i want to know belows.
    1.How to calculate Erlong? and i need formula ?
    2. What BHCA in brief?
    3.What is the diffrens between CDMA and TDMA?
    4.How can we calculate p.xx ?
    5.I need Erlong excel table for
    B and C

    7th September 2002 at 07:10 #33344
    makhijap
    Guest

    hi
    I want to know grade of sevice ,can we change the parameter in Gos
    thanks lot

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