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Thread: Transmission power calculation on LTE cell

  1. #1
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    Default Transmission power calculation on LTE cell

    Hi Guys,

    Can anybody help me on calculating cell output power for an LTE E******* eCell?

    I want to get the total power per cell, and the transmission power for the reference signal (It's 10MHz bandwidth).

    Which parameters am I supposed to look at?

    ConfOutputPower (MO SectorEquipmentFunction) ?
    Am I supposed to check more parameters linked with this one?

    Much thanks for your help!
    Will add Rep!!

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  3. #2
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    2 out of 2 members found this post helpful.

    Default Re: Transmission power calculation on LTE cell

    referenceSignalPower
    Downlink reference-signal EPRE (Energy Per Resource
    Element).
    Why 21dBm?
    10MHz LTE carrier -> 50 RB
    1 RB = 12 sub carriers (12 symbols)
    Assuming 40W RUL, then 40 [W]/50 [RB]= 0.8 [W/RB]
    Pwr per symbol = 0.8 [W]/12 [symbols] = 0.0667 [W]/[symbol]
    0.0667 [W] = 18.24 [dBm]
    2 TX antennas = 18.24 [dBm] + 3 [dB] = 21.24 [dBm]
    “The downlink reference-signal EPRE can be derived from the downlink reference-signal transmit power
    given by the parameter Reference-signal-power provided by higher layers. The downlink referencesignal
    transmit power is defined as the linear average over the power contributions (in [W]) of all
    resource elements that carry cell-specific reference signals within the operating system bandwidth.”

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