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Cell selection Issue

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  • #61057

    Hello All,

    We are facing a problem in our 2G+3G network that MS enters cell selection mode after a normal 3G to 2G cell reselection; under good 2G radio conditions like mostly C1/C2 is more than 20
    There are 3 scenerios in which we can categorise this behaviour:
    1. MS enters cell selection mode immediately after 3G to 2G cell reselection, after correctly recieving the sys Info Type 3, BA list, mode reports indicating correct decoding of BS list & other parameters.
    2. MS enters cell selection mode after max_retrans & T3126 expiry (Rach attempts are being sent for LU process after 3G to 2G reselection)
    3. MS enters cell selection mode after successful LU process completion following 3G to 2G reselection
    In all these scenerios, RxLev of serving & neighbor cells are found good after 3G to 2G reselection but still MS triggers cell selection mode as per TEMS mode reports, which normally takes 4-5 secs
    Any ideas regarding this issue ll be highly appreciated
    thanks in advance!


    Hello Tauseef,

    What is “cell selection mode” ? What do you mean by that ?

    Sorry for my stupid question… I’m not familiar with this term.



    Hi Pix,
    By cell selection mode, i mean “PLMN selection mode”, normally gets triggered when MS is switched on or when there is no suitable cell available during Idle mode (coverage gap etc)



    ok, it makes more sense now, thanks 🙂

    I’ll let Pan answers, if he is around, I believe he can help you very well with these types of questions.


Viewing 4 posts - 1 through 4 (of 4 total)
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