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BSIC difference

Viewing 7 posts - 1 through 7 (of 7 total)
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  • #57585 Reply
    flower
    Guest

    Hi all,

    Can someone help me with the following issue?

    what can the problem be if the BSIC measured in the field and the BSIC defined in the BSC doesn’t match.

    How is that possible?

    Thanks in advance.

    #57586 Reply
    Pix
    Guest

    Hello Flower,

    You are probably not measuring the right signal. Could you describe your method ?

    Other possibility, the BTS database is faulty. But that’s close to impossible : that should raise an alarm in the OMC-R. Have you tried re-apply the radio configuration onto the cell ?

    Cheers
    Pix

    #57587 Reply
    flower
    Guest

    Hi pix,

    Thnks for responding.

    I used my phone with the field test software.

    e.g. On my phone i can see BCCH 115 and BSIC 47
    And if i check on the BSC, then i see that there is a sector with the BCCH 115 neirby but with a different BSIC, the BSIC 47 and freq 115 belongs to a different cell in another city. I have checked several sectors, all with the same problem.
    On my phone i have also seen a BSIC 49. How is that possible, i thought that the range is 00-77.

    regards,
    flower

    #57588 Reply
    Pix
    Guest

    Your fieldtest software could be decoding the right bsic, but display the number as a decimal. You need to convert from Decimal to Octal..

    And you will notice that 49 in decimal = 61 in octal.

    BUT… perhaps you’re reading 39 🙂 that is equal to 47 in octal. You MUST be reading 39 🙂

    So when you define 47 in the BSIC, it will be displayed as 39 on your software, just because it is using different format.

    http://www.ascii.cl/conversion.htm

    The column “OCT”, see how it increases:
    00, 01, 02, 03, 04, 05 , 06, 07, 10, 11, etc.
    The BSIC (= NCC + BCC) is in this format.

    Cheers,
    Pix

    #57589 Reply
    flower
    Guest

    Hi Pix,

    You’re completely right.

    Many Many thanks for your help.

    Have a nice day,

    Flower

    #57590 Reply
    Pix
    Guest

    you’re welcome. I saved one flower today, I’ll save the rest of the world tomorrow :))

    #57591 Reply
    Fai
    Guest

    Hi erlang team,
    What is the exact purpose using the BSIC in network other than Frequency reuse

    Thanks in advance

Viewing 7 posts - 1 through 7 (of 7 total)
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