The high dropcall in GSM( Huawei)

[lihanbok]

Dear Huawei expert,
I am facing with high dropcall in GSM network( Huawei). Maybe the user move so fast in the highway( Picture below). I have already changed many parameter, but it doesn't impove.Could you please share your experience about this case. Thank you so much!
Best Regards,
Lihanbok.

[huawrx]

Hi lihanbok,

I usually change these parameters :

Filter length for TCH level (GCELLHOFITPEN)	Normal: 4 -> 2
Filter length for TCH Qual	Normal: 4 -> 2
Filter length for RX_level	Normal: 3 -> 2
Filter length for TA	Normal: 4 -> 2

i hope this information could be useful, i am looking the same parameters for LTE Huawei, do you know about this? thanks¡¡

bRs

[justdream]

whtat's the cause of your call drop, how many cells covering this area

[manu4ever]

You should collect statisttics of drop call cause