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Data throughput vs TCH Blocking

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  • #58571

    Hi all,
    after our modification of PDCH parameters in Alcatel cells for data throughput improvements, the TCH_Blocking are increased.The parameter that are changed are maxPDCH and MaxPDCH_HighLoad.
    Please give me any idea how to resolve this effect? Is there any timer for change, because I think that the problems comes from that the channel is still busy when there is request for voice call..


    The better is to modify MAX PDCH Parameter and to keep MAX PDCH High Load the lower as possible to priorize Voice calls than PS Traffic. But it’s normal behaviour that you faced TCH Blocking by changing this parameter.


    Yes, “max pdch high load” is the number of PDCH that cannot be preempted by voice TCH during loaded hours.

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