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Thread: qrxlevmin range

  1. #1
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    Default qrxlevmin range

    I am setting UE parameters in an RBS6601 site. I am getting an error with the qrxlevmin setting that I am out of range @ -115 dBm. That value is in range and Element Manager will not let me set it. I can set it to -114, -116, etc, just not -115.
    Is there a dependency that I am unaware of? This works in R24, but the error occurs in R29.
    Thanks.

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  3. #2
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    Default Re: qrxlevmin range

    ALL is normal, depending on your LTE software Load, E******* changes the increments from 1db to 2 db increments after I think L13A for LTE/. i.e. you can only set even numbers. hope this helps

    regards

  4. #3
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    Default Re: qrxlevmin range

    qRxLevMin must be tuned to ensure that the area, where a UE can camp on a cell aligns with the area in which the network can serve the UE in a satisfactory way. Typical values are in the range of -120 dBm to -135 dBm, depending on system configuration, UE performance, inerference levels, and desired service level.

    Quote Originally Posted by ohms_law View Post
    I am setting UE parameters in an RBS6601 site. I am getting an error with the qrxlevmin setting that I am out of range @ -115 dBm. That value is in range and Element Manager will not let me set it. I can set it to -114, -116, etc, just not -115.
    Is there a dependency that I am unaware of? This works in R24, but the error occurs in R29.
    Thanks.

  5. #4
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    Default Re: qrxlevmin range

    as already indicated, the resolution for this parameter is 2 , so you can't set an odd number

    you can check all the details of a parameter with the command: mom . nameOfTheParameter in AMOS

    exeample on a L14A site

    XXXX_LTE> mom . qRxLevMin

    140821-09:11:31 10.0m ERBS_NODE_MODEL_E_1_63 stopfile=/tmp/12272

    ####################################################################################################################################
    MO Class Attribute Type Flags
    ####################################################################################################################################
    EUtranCellFDD qRxLevMin long
    ------------------------------------------------------------------------------------------------------------------------------------
    The required minimum received Reference Symbol Received Power (RSRP) level in the E-UTRA frequency for cell reselection. Corresponds to parameter Qrxlevmin in 3GPP TS 36.304. This attribute is broadcast in SIB1.
    Resolution: 2
    Change takes effect: Immediately
    Unit: dBm
    Range: -140 to -44, Default=-140

  6. #5
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    Default Re: qrxlevmin range

    Thanks. That helps a lot, but I am getting the same error whenever I attempt to change the Channel Number in the EUtranCellFdd Managed Object.

    That is, I select the action change frequency and even though I am not changing the qRxLevMin, I get the same error that qRxLevMin is out of range @ -115.

    Does that make sense. How are they related? It is very frustrating as I cannot change the channel on my Radio Head because of this failure.

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