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GMSK ouput Power

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  • 5th March 2014 at 05:27 #69531
    IRFAN
    Guest

    Hello Pix,

    Hope you are doing good.

    i have a confusion about the GMSK power thing ,what that suppose to mean had came across many times

    Secondly

    according to the Definition of the Parameter BS_ TXpwr_MAx, it says

    “This parameter defines the power reduction relative to the attenuated maximum GMSK output power of the BTS. It is always set to 0 by the OMC. ”

    Why this power is relative to the attenuated maximum GMSK output power.??

    Regards

    IRFAN

    5th March 2014 at 08:30 #69532
    pix
    Guest

    Hi Irfan,

    I’m fine, thanks 😉

    I guess your confusion comes from the term “attenuated maximum GMSK output power” ?

    If yes, then keep in mind that the TRX of one cell are going to transmit at full blast, by default. However if you mix different generations of TRX (for ex. a 40dBm trx with a 43dBm trx within the same cell), then the 43dBm trx will be automatically attenuated to 40dBm.
    The actual “attenuated maximum GMSK output power of the BTS” for this cell is, in this scenario : 40dBm.
    They call it “attenuated” for this reason : some TRX may be attenuated in order to have the exact same power in all TRX of a cell.

    If not, then you may refer to this thread :
    http://www.erlang.com/forum/erlang/thread.htx?thread=7852

    Hope it helps,

    Regards,
    pix

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