Hello Experts,
Any idea to improve DCR on VoLTE?
System is Huawei.
Enable TTI bundling in Uplink.
Enable ROHC.
Enable long drx 40 msec for VoLTE.
Change n310 n311 this will improve DCR but will degrade VoLTE quality in poor RF.
TTI bundling sometime increase drop as well.
Faced issue as it’s on basis of SINR and BLER activation and deactivation.
Good way is to improve UE lost.
You can delay SRVCC.
What thresholds do you have?
Drop pegging in which counter/reason?
Pegging in MME.
Do also have HO fail at same time?
Check your timer values.
PS to CS conversion timer at node… You can try by increasing it.
Yes but just for PS HO.
Try to increase this timer in one node.
It’s “trelocoverall” in Ericsson system.
You can check equivalent in Huawei system.
In VoLTE DCR in Huawei what is reason cause? Check subcounter first.
Check this nice article on VoLTE Optimization:
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Hi Experts,
I need your help in identifying Huawei features that can improve VoLTE DCR%. The major drops in our network are categorized under L.E.RAB.AbnormalRel.MMETot.VOIP.
Trace analysis indicates that users in poor radio conditions are the primary cause of these drops. However, the customer is reluctant to implement any changes that would offload cell edge users.
I’m looking for features that can help:
- Improve UL delay
- Reduce UL packet loss
- Optimize PDCCH load
- Enhance conditions for cell edge users
Any suggestions or recommendations would be greatly appreciated.
I have tested the Enhanced VoLTE Reliability feature before, and it provides significant improvements.
With this feature enabled:
- DL & UL packet loss was reduced by more than 50%
- Overall VoLTE reliability showed a noticeable gain
It could be a useful option to improve VoLTE DCR% in your network.
Yes, brother, the feature is indeed very effective, but we have already deployed it in the network.