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  • #67401
    Aman
    Guest

    Data rate of Signaling of one channel in E1?

    #67402
    srinivas
    Guest

    how can calculte the No. of cells required for a purticular cityin GSM/CDMS/WCDMA. What are the factors effecting the cell size in GSM/CDMS/WCDMA.

    #67403
    pix
    Guest

    hi srinivas,

    number of cells in a city depends on the coverage you want to provide in your city.

    If you say “the lowest rxlev acceptable in the city, outdoor, is -80dBm” -> that means you need x BTS.

    Now if you want to increase this “design Rxlev” to -75dBm, you will need more BTS !

    Each BTS (=3 cells) can only provide a certain amount of coverage. That depends on:
    1- antenna height
    2- antenna type
    3- downtilt
    4- TX Power of TRX
    5- TX Attenuation due to combiners and feeders
    6- usage of Rx/Tx diversity or not
    7- usage of frequency hopping
    8- radio propagation (high buildings, lots of trees, etc -> that will block your signal)

    Cheers
    pix

Viewing 3 posts - 1 through 3 (of 3 total)
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