Hi all
Here is a good resource for all those who are new to GSM.And it also includes a chapter(Ch.8)on Cell Planning principles.Have a look at the following pdf file
http://www.ictfaculty.ir/GSM System Overview.pdf
I can send it as attatchment if anybody wants(make space in your mail box!The file size is 3.42MB)
If you use Yahoo or Gmail then no problem!
Regards
Naveen