Question: how i can plan radio frequency in GSM networks , my mean is I need a documentation in RF planing? 

Answer: Did you try google?\ni dont know if these will help but here are some links i found that appear to be similar to what youre talking about.\n\nhttp://wireless.kth.se/files/publication_files/WilsonJaldenpaper.pdf\n\nhttp://www.widermind.com/pdf/GSMRadioNetwPlanning.pdf\n\nhttp://citeseer.ifi.unizh.ch/537368.html
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