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DRU power

Viewing 5 posts - 1 through 5 (of 5 total)
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  • #61385 Reply
    Andy
    Guest

    Hi All;
    One question: does anyone know the power of DRU (Ericsson 2216 or 2116, 900 or 1800)and is it depended on the configuration?:
    for ex: if I use one DRU with one Antenna=> output power in Watt? in dBm?
    2DRUs combined for one antenna=>power in Watt? in dBm?
    We set the MSTXPWR to the max: 41 and 43.

    #61386 Reply
    ATTO
    Guest

    Hello Andy,

    Power of DRU is 46 dBm ( 40 W) for GSM 900 and 45.5 ( 35 W) for GSM 1800 .

    In Combined mode ( 2 DRUs used in the cell which gives 4 TRXs ) you will loose 3.5 dB. The u will got : 46 – 3.5 = 42.5 dBm for GSM 900

    45.5 – 3.5 = 42 dBm for GSM 1800.

    Regards

    #61387 Reply
    Andy
    Guest

    Thanks ATTO;
    But on our network after measures why we have power like: 6.44W/ 35.2dBm or 16.3W/ 42.13dBm or 9.79W/19.876dBm or 5.56W/ 23.25dBm?
    what should be the cause of these low power?
    Andy

    #61388 Reply
    ATTO
    Guest

    Hello,

    Values I gave are nominal. These are just the Ouptut power directly received from DRUs.

    Where do u measure your values ?

    #61389 Reply
    ATTO
    Guest

    Hi,

    U should also remember that for RBS in service the ouptut power from thoses depends on:

    – values of BSPWRB and BSPWRT.
    – Use of BS Power Control.

Viewing 5 posts - 1 through 5 (of 5 total)
Reply To: DRU power
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