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tch blocking and tch congestion

Viewing 15 posts - 1 through 15 (of 99 total)
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  • #52024 Reply
    og
    Guest

    whats the difference between tch blocking and tch blocking?

    #52025 Reply
    pix
    Guest

    that’s a very tricky question, let me think.

    oh yes, there’s a green apple with a bright mind but a cheap car, hidden in the background of the picture.

    #52026 Reply
    og
    Guest

    OOPS!Sorry.i meant tch blocking and tch congestion.

    #52027 Reply
    Vanderley
    Guest

    blocking dives you the non served calls
    congestion gives the time when no resource are available (it is possible that nobody needs them so no blocks)
    there is a possiblity to have high blocking and low congestion – this means that you have a peak of the attempts.

    #52028 Reply
    pix
    Guest

    vanderley, this is highly dependent on the indicator formula. in alcatel for example, there is the TCH congestion rate (percentage of rejected TCH attempts / TCH requests), and the system congestion time.

    there is no “blocking” per say.

    #52029 Reply
    Ali Aamir Raza
    Guest

    What is the difference between TCH blocking and TCH congestion?

    #52030 Reply
    Vanderley
    Guest

    Hi,

    Pix you are right it depends how the vendor calls it.
    But as far as I know:
    Congestion = time when all resources are occupied (no free TCH available)
    Blocking = rejected (blocked) attempts over all attempts in %.
    Also there is different formulas for TCH blocking. For example in subscriber perceived TCH Blocking all successful directed retries to another cell are removed from the nominator.

    #52031 Reply
    pix
    Guest

    i can understand how complicated it must be for operators to work with 2 or 3 different vendors ! Each vendor has their own vocabulary…

    #52032 Reply
    Ali Aamir Raza
    Guest

    How we can define mean holding time.

    #52033 Reply
    Vanderley
    Guest

    Erlang per tch seizures (usualy in seconds)

    #52034 Reply
    Amit Verma
    Guest

    What is the difference between TCH blocking and TCH congestion?

    #52035 Reply
    Tufail
    Guest

    Hi All,,

    TCH COngestion Is No resources available for allacation for time “x”.

    TCH Blocking is %age attempts made during TCH congestion.

    Hoope it may Help..

    Regards

    Tufail

    #52036 Reply
    pett_nomy
    Guest

    What is the connection between TCH Blocking Rate and Call Setup Success Rate?

    It is true if your Blocking Rate is high, your CSSR must be low?

    #52037 Reply
    Ayat
    Guest

    Hello alll

    is that mean the TCH congestion rate (No avaliable Resources “all the resources are busy ) and Blocking rate for another reason (is it assignment failure ??)

    we need more explaination PLZ
    could you give us an example .

    what does mean blocking , when it occures ??

    thanks

    #52038 Reply
    pix
    Guest

    ayat,

    blocking rate and congestion rate are the same thing !
    it means the subscriber requests for a channel, but the BSC rejects this requet because no more channel available.
    it can happen at TCH assignment or SDCCH assignment.

Viewing 15 posts - 1 through 15 (of 99 total)
Reply To: tch blocking and tch congestion
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