3G open loop power control This topic has 0 replies, 1 voice, and was last updated 14 years, 10 months ago by Pawel. Viewing 1 post (of 1 total) Author Posts 4th January 2010 at 09:03 #60573 PawelGuest Dear all, There are two equations connected with open loop power control. First is for calculation of PRACH Preamble Initial Power used during Mobile Originating calls. Second equation is used when establishing the first DPCCH. Could you tell me when it is used and why? BR, Pawel Author Posts Viewing 1 post (of 1 total) The forum ‘Telecom Design’ is closed to new topics and replies.