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Unservice by PCU

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  • #47240 Reply

    Hi all..

    I would like to share a bit of what happening here.

    I have a few GSM site that having high number of unservice by PCU counter.

    my questions are:
    1) what would be the causes?
    2) would this reduce the PRACH assignment performance?


    #47241 Reply

    Unservice by PCU, it probably means you are having Packet service failures, due to PCU unavailability (or unservice)..

    PRACH is used on the master channel for GPRS.. Are you using this feature ? As far as i know, there is no mobile which is supporting this feature.

    Anyway, the RACH and PRACH messages are sent to the PCU transparently, so if the PCU is down, RACH assignments for packets will not work.

    #47242 Reply

    i dont use PRACH feature.

    any idea to get PCU load estimation?

    would us say that if PCU is fine yet we stil have Unservice by PCU.. it is congestion at PCU?

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