- This topic has 20 replies, 1 voice, and was last updated 10 years, 11 months ago by KAMOLI.
17th June 2008 at 07:12 #52767NSNRGuest
While i was doing city drive of a town in my cluster i find lots of RACH error. Can any body tell me it is the reason behind it……… One more thing i would like to know i somebody write above that RACH Failur could be because of CO-TCH/BSIC case….does it happen only in the case of base band hopping or it will impact in the Synth hopping…….. Pls Reply.
BR//17th June 2008 at 16:03 #52768pixGuest
what is “RACH error” exactly ?
the RACH is on the BCCH timeslot, and don’t forget that this timeslot will NEVER hop, whatever your hopping type on other timeslots (bbh or sfh)18th June 2008 at 15:09 #52769NSNRGuest
But i was saying if we find CO-BCCH and BSIC then could this happen.18th June 2008 at 19:13 #52770pixGuest
what would happen ? rach error ? but i still don’t know what it is.. you need to enlight me 🙂9th July 2008 at 11:43 #52771akoGuest
are you using TEMS? I also got this error message during drive test and it is not only in 2G but 3G as well. It happened during call setup. I still have no explanation on this error, as there are no blocked calls when it occured. I suspect that it is site related since it is confined to a site and clears as we moved on to another site, but don’t take it as it is since we are still investigating it.30th September 2009 at 15:32 #52772Ahmed SabryGuest
RACH error is not DL message, Its due to TEMS timer not entered correctly – Don’t look at it! Its fake message1st October 2009 at 08:38 #52773AliAsgherGuest
Ahmed is correct. RACH Error is just a TEMS terminology used in case of initiating Command Sequence.
A RACH error is triggered because no RRC Connection Request was sent after initiation of a voice call by a command sequence.5th October 2009 at 12:19 #52774PratapGuest
Boss i ahve also experienced this once with tems kit and found that the Ater media was down from respective BSC to MSC.
Pls check and confirm whether this was the problem at the time of RACH error.
Its an UL channel and goes with BCCH i.e ur signalling channel should keep working(on air) in order to make this channel(request) to reach respective VLR.
If anything doesn’t work in between MS and VLR ,then this error can come even if BCSU,MCMU cards of respective BSC are over thresholds and also in very worst radio condition which is usually called Ghost error.8th October 2009 at 03:48 #52775AliAsgherGuest
From MS point of view, if anything was wrong between MSC/BSC or anywhere it will not matter. The MS will try MAXRET times to access the channel and request for signalling channel. If failed it will give you a “Blocked Call” message.
RACH Error’s description is what I have stated earlier. It is just a TEMS terminology.
Regards,19th October 2009 at 23:18 #52776EzcGuest
Hi, I would like to talk with somebody about TEMS. I work with Data Collection, but I would like to learn more. Thanks!!!
P.D: I don`t speak english, just a little. I`m from Venezuela and is really difficult find people who knows about TEMS in my country!20th October 2009 at 05:06 #52777PixGuest
Welcome here !
Don’t worry about english… with you, we will talk the TEMSglish. 🙂21st October 2009 at 14:54 #52778EzcGuest
Hi Pix!!! Thanks!!! Do you work with Data Collection???22nd October 2009 at 21:07 #52779PixGuest
I used to do drivetests, a long time ago 🙂 Is that what you call data collection ?23rd October 2009 at 01:52 #52780ErsGuest
Im so interested to discuss about TEMS (especially in TEMSglish lang)..
What version of TEMS you use ?? TEMS 7, 8 or 9??23rd October 2009 at 06:43 #52781AliAsgherGuest
I have used TEMS 8.0.3 and TEMS 8.1 too.