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Hey guys need a helpy hand
My NW Band is 4.4 MHz’s & We have total 22 BCCH (ARFCN), What kind of planning we can do?
In terms of mapping, erlangs per cell, MAIO.Hi Redneved,
For 4.4 Mhz band use 4/12 frequency re-use pattern.
Erlangs Standard are as follow:
1 trx : 2.09 erl
2 trx : 8.01 erl
3 trx : 14.03 erl
4 trx : 21.03 erl
and follows…..
It depends on ur initial trx planning…….considering facts such as:
no. of subscriber,erlang per user offered(TRAI rule 40 mE but planner always use 25mE ).
MAIO values
0 6 3
2 8 5
4 1 7
Condition HSN should remain the same for the cells.
Its can also vary as per contract between OPERATOR and VENDOR organisation.well
thats was handy ….If
Projected Subs : eg 100000
Projected Erlang per sub: (generally 30 mErl or .03 Erl)
Area 100 Sq KmNo. of TCh frequencies…Logical mapping of TRX….as per 1800 band
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