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Grade of Service

Viewing 15 posts - 16 through 30 (of 125 total)
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  • #33330 Reply
    Jose Quintero
    Guest

    Asaaf,

    Let me know your address to send it you a File

    Regards

    #33331 Reply
    Assaf Peled
    Guest
    #33332 Reply
    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.

    #33333 Reply
    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

    #33334 Reply
    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

    #33335 Reply
    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

    #33336 Reply
    Adriana Infante
    Guest

    What do you think? about :

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

    #33337 Reply
    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?

    #33338 Reply
    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

    #33339 Reply
    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

    #33340 Reply
    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

    #33341 Reply
    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

    #33342 Reply
    Zubair A.Khurshid
    Guest

    Dear Jose,

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

    Regards,
    Zubair

    #33343 Reply
    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

    #33344 Reply
    makhijap
    Guest

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

Viewing 15 posts - 16 through 30 (of 125 total)
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