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gunpowder
2015-01-18, 02:35 AM
Dears.

After activating SRB over HSUPA we faced degradation in terms of PS RAB SR ? any suggestions

Thanks
electron
2015-01-18, 03:11 AM
Dears.

After activating SRB over HSUPA we faced degradation in terms of PS RAB SR ? any suggestions

Thanks

Hi,

I guess you mean SRB over HSDPA not HSUPA right? The reason is SRB will be mapped on HSDSCH which can not be in SHO and it is normal you will have higher drop due to drops in mobility.

Cheers
gunpowder
2015-01-18, 03:52 AM
no i mean over HSUPA :) , i need to know if it is a common problem or there a problem with my configuration
yassanino
2015-01-18, 02:22 PM
is fractional DPCH activated on your network ? for CPC , if it is you need tuning your parameters
gunpowder
2015-01-18, 06:24 PM
F_DPCH and CPC are Deactivated
eric4good
2015-02-27, 05:39 AM
Hi, we faced the exact same degradation on PS, any ideas or conclusion reached?
fahmi
2015-02-27, 06:37 PM
Dear,

You need to know that many UE dont support SRBoEDCH, and cause PS EST FAIL.

Try to know if the fails are related to specified IMSI to confirm this point.

BR,
Fahmi
Lazaros
2015-03-01, 08:58 PM
Hi,

I remember I faced this issue before. The problem was with the DRD and in specific with the DRD Fallback. Eg, an HSUPA service in F1 is DRD in F2 with a RB setup message and SRB over HSUPA. In case this DRD fails due to radio, when the UE returns to F1, it is follows SRB over DCH, while network expects SRB over HSUPA. Solution is to supsend SRB over HSUPA for the first 5 sec in case DRD occurs. There is a reserved switch on that, which version do you use?
samuraial
2015-03-02, 05:21 PM
Yes it is reserved switch 3 for this one and reserved switch23 on R014 that helps turn SRB from DCH to HSUPA faster improving HSUPA user experience.

B/R
Muhammad Imran Rafique
2015-03-07, 12:32 AM
F_DPCH is mandatory to function properly SRB over HS.
gunpowder
2015-03-07, 02:58 AM
Dear,

Thanks for helpful replies , i want to ask if the reseved switch is the same in RAN16?
rnpopt
2015-05-11, 04:10 AM
can you pls explain a bit details.

F_DPCH is mandatory to function properly SRB over HS.
P.T.E.
2015-07-05, 11:39 PM
Dear

In RAN 16 use this command: SET URRCTRLSWITCH:PROCESSSWITCH5=SRBCHG_DRD_FAST_RB_SETUP_SWITCH-1;

BR,


Dear,

Thanks for helpful replies , i want to ask if the reseved switch is the same in RAN16?
justdream
2015-09-16, 09:08 PM
Dears,
Could you share please document describes activation procedures for SRB over HSPA (Ran 16)
techfolkcmr
2015-09-17, 10:47 PM
Dears,
Could you share please document describes activation procedures for SRB over HSPA (Ran 16)

on MML type DSP License to check whether SRBoverHSPA supported or not. Type LST FRCCHANNELTYPEPARA to check the existing config and use SET FRCCHANNELTYPEPARA to change settings. By the way the commands posted here are for RAN11 & should be more or less same in RAN14 too.
justdream
2015-09-18, 12:17 AM
on MML type DSP License to check whether SRBoverHSPA supported or not. Type LST FRCCHANNELTYPEPARA to check the existing config and use SET FRCCHANNELTYPEPARA to change settings. By the way the commands posted here are for RAN11 & should be more or less same in RAN14 too. Dear, 1) Which license item exactly, I've to check in DSP license 2) I was asking are there any others parameters should be modified rather than SRBCHLTYPE