ErlangB – GSM – shared TRX (in & out) This topic has 2 replies, 1 voice, and was last updated 18 years, 10 months ago by Adetoro ademakinwa. Viewing 3 posts - 1 through 3 (of 3 total) Author Posts 4th January 2003 at 14:55 #34987 Shamsir F.Guest Hi I am out of idea right now and requesting any open idea ok, based on ErlangB formula I could perform planning & optimization on my network Let say I have (based on observation record) TRX(N) = 2 (14 channels) Call drop = 10% (Busy Hour) Erlang = 9.47 (Busy Hour) now, I want to reduce the drop to 2%, and keep Erlang constant, the result N around 16. The problem comes in N, coz the 14 channels are shared for incoming and outgoing(that is why Erlang 9.47 instead of 11.5). Hence, the N value is not really 14, Anybody could help me out on how to make “more” practical calculation? 18th January 2003 at 01:55 #34988 cao ningGuest Hi, if you have answer, shall you share with me at firstname.lastname@example.org? 9th April 2004 at 11:48 #34989 Adetoro ademakinwaGuest i need information on traffic analysis in GSM Author Posts Viewing 3 posts - 1 through 3 (of 3 total) The forum ‘Telecom Design’ is closed to new topics and replies.