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Thread: how to get and parse the CI from the signaling(RRC) for WCDMA?

  1. #1
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    Default how to get and parse the CI from the signaling(RRC) for WCDMA?

    how to get and parse the CI from the signaling(RRC) for WCDMA?

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    Default Re: how to get and parse the CI from the signaling(RRC) for WCDMA?

    Just in idle statu you will see the CI.
    Quote Originally Posted by blackantt View Post
    how to get and parse the CI from the signaling(RRC) for WCDMA?

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    3 out of 3 members found this post helpful.

    Default Re: how to get and parse the CI from the signaling(RRC) for WCDMA?

    Actix cell id's numbers can be translated into actual numbers if you follow this procedure:

    1. you read CI from Actix (e.g. SIB3 or corresponding attribute) say this is = 2469094
    2. then you convert this two binary format: 1001011010110011100110 (i am using windows calculator for this calculation)
    3. the 2 least significant bytes (or 16 least significant bits) is the actual CI:10010110[10110011100110]
    4. convert [10110011100110] to decimal = 44262 and this is the actual CI

    reps greatly appreciated!

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    Default Re: how to get and parse the CI from the signaling(RRC) for WCDMA?

    thanks all,i see and extract the ci for SIB3
    but for dedcatied mode,(RNC) how to know the current ci (measure report only have SC)?

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    Default Re: how to get and parse the CI from the signaling(RRC) for WCDMA?

    Quote Originally Posted by boring View Post
    Actix cell id's numbers can be translated into actual numbers if you follow this procedure:

    1. you read CI from Actix (e.g. SIB3 or corresponding attribute) say this is = 2469094
    2. then you convert this two binary format: 1001011010110011100110 (i am using windows calculator for this calculation)
    3. the 2 least significant bytes (or 16 least significant bits) is the actual CI:10010110[10110011100110]
    4. convert [10110011100110] to decimal = 44262 and this is the actual CI

    reps greatly appreciated!
    The cell identity = RNC ID(12bytes)+CellId(16bytes)
    Then,calculator it,you'll get the correct result.

  6. #6
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    Default Re: how to get and parse the CI from the signaling(RRC) for WCDMA?

    Quote Originally Posted by blackantt View Post
    thanks all,i see and extract the ci for SIB3
    but for dedcatied mode,(RNC) how to know the current ci (measure report only have SC)?
    this time,why RNC should know ci?

  7. #7
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    Default Re: how to get and parse the CI from the signaling(RRC) for WCDMA?

    in dedicated mode the CI is not reported by the UE. SC and temporary CId is sufficient for the RNC to uniquely identify cells.

    for troubleshooting purposes, however, it is still possible for optim engineers to get the CI information only when a UE is in HSDPA/HSUPA.
    all messages where the serving HSDPA cell appears (e.g. Radio Bearer Setup, Physical Channel Reconfiguration etc) contain also the CI of the serving HS cell

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