High Call Drop in Ericsson OL subcell This topic has 4 replies, 1 voice, and was last updated 11 years, 11 months ago by BrennC. Viewing 5 posts - 1 through 5 (of 5 total) Author Posts 13th January 2012 at 07:11 #67745 VanGGuest Hi All, is there anybody to know what can be the reasons for DL quality drop in OL subcell. The most of drops are in the OL and they are observe in whole BSC area. Best regards, 13th January 2012 at 12:14 #67746 BTGuest What is the TA of your drops? When did the problem started? 16th January 2012 at 03:17 #67747 BrennCGuest Hi all, I am also experiencing this kind of problem with RBS 2206. I have already tried replacing CDU, DTRU and DXU but still have high DCR caused by high T_DR_BQ_DL also, the problem started since commissioning and integration. this is in In-Building Coverage 16th January 2012 at 10:28 #67748 BTGuest BrennC How much traffic does that RBS have? How many drops are occurring? 17th January 2012 at 00:17 #67749 BrennCGuest BT the TNDROP is in the range of 30-84 also the TTRAFF is in 0.16 to 0.64 this is on daily stats Author Posts Viewing 5 posts - 1 through 5 (of 5 total) The forum ‘Telecom Design’ is closed to new topics and replies.