- This topic has 8 replies, 1 voice, and was last updated 5 years, 2 months ago by Bhaskar Ghildiyal.
1st November 2009 at 06:46 #59405alexGuest
please tell me what is mean holding time in gsm??
and then what is the mean of follownig alarm on one trx:
mean holding time is belove defined threshold1st November 2009 at 11:23 #59406pixGuest
MHT is the duration during which a MS is using the TCH in the cell.
So if it is too short, it means either the calls are dropped as soon as the TCH is seize… or there is a HO taking place immediately. Check your drops and your outgoing HO : are they high ?
If drops : HW problem, probably
If HO : settings are done in such a way that HO are triggered quickly from this cell. It could be a correct strategy (for example, if cell is an umbrella : the calls are sent to microcells immediately).1st November 2009 at 17:08 #59407alexGuest
thanx mr pix
you are a good man.2nd November 2009 at 09:58 #59408BijoyGuest
Pix already told much about MHT.I’m just adding some more:
I think you are using Nokia system.Check for MINHTT,PRDMHT&CS values.Improper settings may un-necessary yeild more alarms.Also,this alarm is causing TCH Drop only if it is accompanied by 7745 Alarm.Otherwise,intracell HO may be taking place or the Idle channel Interference is high on that particular channel/TRX13th January 2011 at 19:02 #59409MailmanGuest
If I wanted to make a Business Object report showing MHT which counters would I need to add to the report?17th January 2011 at 14:40 #59410anshuGuest
can u elaborated ur line
So if it is too short, it means either the calls are dropped as soon as the TCH is seize…18th January 2011 at 13:43 #59411pixGuest
the TCH is released when the user hangs up.
but if you see that the TCH is used for a short time (5s) in average, it means that the TCH is released due to a system decision (handover or call drop).
pix29th December 2011 at 06:17 #59412BramoGuest
What is the relationship btn the MHT and the USSD services, is the USSD transaction uses SDCCH, how can SDCCH MHT affect USSD transaction? is this decision made at BSC side at MSS/MSC side.
Bramo22nd November 2015 at 12:57 #59413Bhaskar GhildiyalGuest
i need Ericsson tch mean holding formula & sdcch mean holding formula..