Monday, April 1, 2013

Concentric Cell (Co-BCCH) Technology

Concentric cell (also known as Common BCCH) are those that operate with both GSM and DCS TCH frequencies but with a single BCCH (of GSM), thereby having below advantages compared with dual-BCCH:

  • DCS BCCH resource is saved per cell
  • Reduced BA List
  • Reduced DCS BCCH interference
  • Reduced number of neighbours
  • Potential for Reduction in number of Handovers
An important physical parameter consideration for Concentric Cells is the tilt difference between the DCS and GSM antennas. Generally, in an interfered GSM network, the DCS antenna has lower downtilt than the GSM antenna to equalize the coverage area.
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3 comments:

  1. UnknownJuly 25, 2016 at 6:58 AM

    what is a diff between Co_Bcch and Subcell

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  2. Naushad AliOctober 18, 2016 at 5:16 AM

    This comment has been removed by the author.

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  3. Naushad AliOctober 18, 2016 at 5:17 AM

    Normally, in Concentric Cell, E tilt like 6 of GSM and 3 for DCS are optimum in cities.
    similarly if GSM and DCS antennas are different, make sure Azimuth of both antennas is same. tolerance level +-(5 degree)

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