how we can reduce the code congestion?

[tareq1010]

Dear experts,
could you please share you idea how we can reduce the code congestion in huawi equepments? plz note that we can not add second freq in our network.

[sala70vic]

Dear experts,
could you please share you idea how we can reduce the code congestion in huawi equepments? plz note that we can not add second freq in our network.

Hi tareq,

Please give more info regaring the traffic model in this cell.
thanks.
regards,

[tareq1010]

salam ahmad,
the congestion in the carreir which carrierd the CS and R99. the congestion in the R99 service.
after the following changes are done, the congestion is reduced but still we have congestion.
-Downlink Bit Rate Threshold For DCCC[kbit/s from 64 to 32
- Low Activity Bit Rate Threshold[kbit/s] from 64 to 32
-DL BE traffic Initial bit rate[kbit/s] from 64 to 32

plz note that we are enable the LDR feature but the Rate reduction action is not working.

[sala70vic]

salam ahmad,
the congestion in the carreir which carrierd the CS and R99. the congestion in the R99 service.
after the following changes are done, the congestion is reduced but still we have congestion.
-Downlink Bit Rate Threshold For DCCC[kbit/s from 64 to 32
- Low Activity Bit Rate Threshold[kbit/s] from 64 to 32
-DL BE traffic Initial bit rate[kbit/s] from 64 to 32

plz note that we are enable the LDR feature but the Rate reduction action is not working.

Hi Tareq,

What about HSDPA BE Threshold settings?
Which PS RAB is highly used during congestion?
regards,

[tareq1010]

Hi ahmad,
HSDPA BE Threshold is 768. but we change it before to 384 without any effect.

the RABs 384, 64 are counted more than others on the congested cells.

[sala70vic]

Hi ahmad,
HSDPA BE Threshold is 768. but we change it before to 384 without any effect.

the RABs 384, 64 are counted more than others on the congested cells.

Hi Tariq,

Recommend to change this parameter to 256Kbps,128Kbps,... gradually; most of operators push all PS users "HS capable UEs" to HSDPA by setting this parameter to 8kbps.



Please feedback HSDPA configuration for this cell?
Also, please feedback DYN code switch "LST MACHSPARA" under this NodeB

Can you open IOS trace over this cell and check the PS RAB profile against the UE physical capability, whether it is HSDPA capable or not?
Calculate number of PS RABS which are more 384 and not mapped over HSDPA
(PS.RAB.More384.att - HSDPA.RAB.Att)

[agenov]

salam ahmad,
the congestion in the carreir which carrierd the CS and R99. the congestion in the R99 service.
after the following changes are done, the congestion is reduced but still we have congestion.
-Downlink Bit Rate Threshold For DCCC[kbit/s from 64 to 32
- Low Activity Bit Rate Threshold[kbit/s] from 64 to 32
-DL BE traffic Initial bit rate[kbit/s] from 64 to 32

plz note that we are enable the LDR feature but the Rate reduction action is not working.


It seems very strange to have so much R99 traffic causing congestion so to find out the root cause for this behavior is good start. In addition to all proposed so far you may check whether HSPA is active as well as your NodeB/ even at RNC level/ licenses are enough i.e HSDPA users, HSDPA,HSUPA and etc. otherwise the system will allocate HSDPA capable UEs to R99 service that is good to be avoided.

Cheers,

Alex

[eyirmibes]

It seems very strange to have so much R99 traffic causing congestion so to find out the root cause for this behavior is good start. In addition to all proposed so far you may check whether HSPA is active as well as your NodeB/ even at RNC level/ licenses are enough i.e HSDPA users, HSDPA,HSUPA and etc. otherwise the system will allocate HSDPA capable UEs to R99 service that is good to be avoided.

Cheers,

Alex


Please check the parameter in LDR: Gold user priority .. = ON since all your users could be defined as GOLD you need to open this feature to work

[gigel]

check also the level of SHO ratio and try to reduce it if is huge