- This topic has 9 replies, 1 voice, and was last updated 5 years, 1 month ago by Thanh.
20th March 2013 at 19:09 #68956IanGuest
Anybody tried this feature with ALU B11 ?
Don’t know if i’m using the wrong parameters but i don’t see any improvement on the DC.
EN_REP_DL_FACCH: “repeated DL FACCH enabled for LAPDm command frames and also for LAPDm response frames”
REP_DL_FACCH_LEGACY_SUPPORT: “Repeated DL FACCH enabled for all AMR MS”
REP_DL_FACCH_THRES_AME_FR : 12.2
RADIOLINK_REP_DL_SACCH : 10
L_RXQUAL_UL_P_AMR_RXACCH: 35 (x0.1)
L_RXQUAL_DL_P_AMR_RXACCH : 35 (x0.1)
Thanks for your inputs
Yann28th March 2013 at 08:56 #68957StyraxGuest
For RDFACCH, did you try to modify T200 timer according to the recommendation?
BR6th April 2013 at 01:21 #68958IanGuest
Do you know what are the recommendations for these T200 parameters T200_TF and T200_TH ?
Ian21st April 2013 at 14:48 #68959StyraxGuest
Actually T200 timers, shall be automatically increased by 40 ms in the BTS when RDFACCH is dynamically activated, whatever their values
For RxACCH, i tested it last week :
RSACCH : decrease call drop (radio_call_drop)
RDFACCH : increase call drop (radio_call_drop) and decreas Handover success rate, without any impact on OUT_HO_efficiency_rate
I can’t understand the results
BR2nd May 2013 at 05:45 #68960IANGuest
Strange, did you get any support from TAC, we are also going to open a ticket as we did not see any improvement/degradation with these features.
What is your BSS version ?? we are using B11 Ed1.3
Ian6th May 2013 at 16:19 #68961styraxGuest
In our NW, we’re using B11 also, i took into consideration to not activate this feature on G2 BSC.
I think that wrong values for
are caused KPI degradation after feature activate
BR16th May 2013 at 01:58 #68962IanGuest
We have :
RADIOLINK_TIMEOUT_BS (i cant find this parameter)
RADIOLINK_TIMEOUT_BS_AMR(i cant find this parameter)
Ian19th May 2013 at 10:23 #68963StyraxGuest
RADIOLINK_TIMEOUT_BS = RADIOLINK_FAILURE_THRES
RADIOLINK_TIMEOUT_BS_AMR = RADIOLINK_FAILURE_THRES_AMR
BR22nd May 2013 at 01:03 #68964IanGuest
What values have you found to make SACCH and FACCH features working ?
RADIOLINK_TIMEOUT_BS = ?
Ian1st December 2015 at 02:26 #68965ThanhGuest
I have the same problem like Ian, can anyone help?