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Thread: LTE IBS Link Budget

  1. #1
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    Default LTE IBS Link Budget

    Hi,

    I am confused shall we take total Tx power (60W = 47.8 dBm) or RS power (21.2 dBm) or sub-carrier power (18.2 dBm) in LTE IBS link budget EIRP calculation per antenna ? I think we should take sub-carrier power but it will make huge difference in the number of RRUs and cost! We have 15 Mhz BW and 60W RRU (SISO). It will be great if anyone having LTE IBS link budget excel sheet and hands on experience can help.

    BR,
    Faisal

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  3. #2
    Member Reputation: 68
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    2013-04-17
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    Default Re: LTE IBS Link Budget

    Use RS power for link budget cal

    Quote Originally Posted by faisaladeem View Post
    Hi,

    I am confused shall we take total Tx power (60W = 47.8 dBm) or RS power (21.2 dBm) or sub-carrier power (18.2 dBm) in LTE IBS link budget EIRP calculation per antenna ? I think we should take sub-carrier power but it will make huge difference in the number of RRUs and cost! We have 15 Mhz BW and 60W RRU (SISO). It will be great if anyone having LTE IBS link budget excel sheet and hands on experience can help.

    BR,
    Faisal

  4. #3
    Member Reputation: 68
    Join Date
    2013-04-17
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    Default Re: LTE IBS Link Budget

    Note normally the weak signal of UMTS and LTE are different

    UMTS ,-113 dBm
    LTE ,-130 dBm

    so the target of EIRP will not same
    pls.change you target you will get less RRU

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