I’m sorry I forgot this one:
“… means 2 calls out of 100 will be blocked in the busy hour due to the lack of resources ( RACH , PCH , SDCCH or TCH ?? …… which one in specific or all ?????…”
First at all it’s not obligatory to have maximum block rate during the BH…
Usually we speak about TCH blocking…
There is SDCCH blocking rate ( Erlang table is valid – SDCCH/8 = 8 channels ).
RACH and PCH blocking – never heard. If BCC ( not CBC ) configuration – you need a new site ( several 8/8/8 sites in fact 🙂 ) because of the RACH or LA split because of PCH…
BR,
TNS