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Cross talk

  • This topic has 3 replies, 1 voice, and was last updated 10 months ago by Wallis Dudhnath.
Viewing 4 posts - 1 through 4 (of 4 total)
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  • #48592 Reply
    Ram Iyer
    Guest

    hi

    I experience cross talk in my network for the calls between GSM and PSTN. I made sure that none of the BCCH frequency is same for any cells in my network, BSIC is not identical in order to avoid any problems due to RF. Please can anybody advice me what can be the problem for this to happen.

    #48593 Reply
    AD
    Guest

    ummm…i dont know the exact answer but have you installed eco cancellors in your systems??

    #48594 Reply
    pix
    Guest

    Ram,

    it is not an issue on the radio side !! It must be a misconnection from your E1 around your MSC. Maybe an inversion… so check your E1’s ( =PCM)

    echo cancellers could be a problem as well ?

    #48595 Reply
    Wallis Dudhnath
    Guest

    Sorry for the late response.

    Check if your circuit has an echo suppressor – very common for internation circuits.

    For early deployments of GSM / PSTN, echo was an issue. Later solutions used Echo Cancellers (EC) in pool. The signalling and the selection of a route to the PSTN determined if an EC resource was required. Later solutions could address NEXT, FEXT and Mobile Cross Talk (XT).

    VBR/ Wallis Dudhnath

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