Hi pix and Huawei RF,
One guy came up with this proposal to mix up the TCH and BCCH and I don’t know why he is trying to use these technique. That is why I asked you guys. Planning manual is a bit difficult but I often use the ILSA automatic Frequency planning tool from Aircom which is part of their enterprise suite. After that I make some adjustments of the ILSA output.
“I didn’t really get what you mean by 7×21… may be u mean 21×3?” No I made a mistake we are using fractional reuse 1×3 pattern.
The distance between our sites are 200-400m.