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Time slot selection algarithm

Viewing 6 posts - 1 through 6 (of 6 total)
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  • #41597 Reply
    shaguni
    Guest

    Hello there,

    Can any body tell me if the BCCH time slots are not alocated unless the other TRX time slots are full is conforming GSM protocol or not. In this case even in the case of hand over the BCCH time slots are not alocated if the other TRX time slot quality is of bad quality (interference etc.)

    #41598 Reply
    M.Thyagarajan
    Guest

    this is because the priority has been set for TCH TRX(TRX priority).

    this means that it will choose the TCH as priority.this can be used to improve drop call rate.

    #41599 Reply
    alexander
    Guest

    you can set TRX priority parameter, so you can set if new TCH should be allocated from BCCH TRX or allocated from non-BCCH TRX.
    Alex
    http://www.dx200.biz

    #41600 Reply
    Boonyooo
    Guest

    In Siemens this algorithm is called “Prefered TRX(Call Policy)”, If you set it to DATA_CALL_ON_BCCH for CS calls you will first allocate the non-BCCH TRXs and only use BCCH TRX for CS calls when there is not idle timeslot on not BCCH.

    #41601 Reply
    Boko
    Guest

    In Alcatel you even can define Tch-Voice preferably onthe TRX with the higest possible number and Tch-Packet on the TRX with the smallest possible.
    But for siemens:
    We notice that data call on BCCH is not very usefull, it is better to have data only on BCCH and just to watch “intracell HO due to multislot calls”
    Boko

    #41602 Reply
    Arpan
    Guest

    Can anybody tell what is the parameter name to set TRX Priority for allocation in Ericsson System

    Thanks & Regards
    Arpan Vohra

Viewing 6 posts - 1 through 6 (of 6 total)
Reply To: Time slot selection algarithm
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