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Air Interface traffic and Ater Traffic

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  • #61541 Reply
    Gem
    Guest

    Guys Urgent help required. Which should be larger if you take a BSC into consideration:- Total no of attempts from subscriber till BSC OR the traffic from BSC to MSC.

    Or should it be same.

    #61542 Reply
    Pix
    Guest

    i’m not sure i understand the question… my answer is “it should be the same”

    #61543 Reply
    gem
    Guest

    Pix,

    The case is I am taking erlang counter on the BSC which comes to x. Now when I take the CGR report of that particular BSC ie, (AMR and non AMR circuit), I get an erlang y which is less than x

    Surprisingly,when I take the calls in the BSC and compare it with the total of “Call in” and “call out ” of the the AMR and non AMR CGRs, i get a value 60000 more than that of total calls.

    I am confused

    #61544 Reply
    Bijoy
    Guest

    Gem
    The Switch traffic will always be slightly less than the radio traffic.
    Regarding Call in BSC,I think you consider only the MO & MT,& not the inter BSC incoming HO calls,whereas in CGR,i think you count the CGR switching calls too,as well as the incoming HO calls from other BSC’s.

    Br\\
    Bijoy

    #61545 Reply
    Gem
    Guest

    Thanks Bijoy for the reply.

    OK so you mean to say, I shouldnt be taking the CGR report.

    So which counter will give me the correct picture on how many calls are there in ater so that handover attempts gets avoided

    #61546 Reply
    Bijoy
    Guest

    Hi Gem
    What is your vendor?I think every vendor has separate counters in BSC for MO,MT,incoming HO calls.I’m not so sure about the calls demarkation in CGR,some vendors do have,some dont.

    Br\\
    Bijoy

    #61547 Reply
    Gem
    Guest

    Vendor is Nokia. COunter name at CGR level would be required

    #61548 Reply
    Bijoy
    Guest

    Please check the p_nbsc counters in BSC to have exact no. of calls for MO,MT & Incoming HO from other BSC’s

    Br\\
    Bijoy

    #61549 Reply
    Gem
    Guest

    Bijo, On a second thought, handover doesn’t seem to be the correct root cause.

    We are looking at that particular BSC CGR only

    #61550 Reply
    Bijoy
    Guest

    Gem
    Then how does the incoming HO to that BSC from other BSC’s & the intra CGR (say AMR-AMR or NAMR-AMR) HO is accounted for as they need a circuit too in that BSC.

    Br\\
    Bijoy

    #61551 Reply
    Gem
    Guest

    Even if a sub moves from a different BSC to “our” BSC, the channel in the air would also get used which means a TCH is allocated and hence increases the no of calls in that BSC.

    Suffice to say that a inter BSC handover would result in a channel in the air as well as ater simultaneously

    What do you think

    #61552 Reply
    Bijoy
    Guest

    Exactly Gem
    Take the total “IN” & “OUT” calls from CGR.
    Also,take total “MO”,”MT” & “IncominG HO calls from Other BSC” for that BSC.They should be exactly equal.

    I think,The total calls you are taking doesn’t comprise the Incoming HO calls from other BSC.

    Br\\
    Bijoy

    #61553 Reply
    Bijoy
    Guest

    But
    Even your total calls will match in CGR & BSC,dont think that CGR traffic will be equal to the BSC radio traffic.

    The CGR Traffic will always be less than the BSC radio traffic.

    Br\\
    Bijoy

    #61554 Reply
    Gem
    Guest

    Yes Bijo.. I get it now. Checked it with the raw reports .Thanks a lot for the guidance

    #61555 Reply
    Naimish Malhotra
    Guest

    What is the full form of CGR?
    Whts d exact function of it?

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Reply To: Reply #61547 in Air Interface traffic and Ater Traffic
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