Drop call due to poor coverage on WCDMA

[lamhd_bk]

Dear all
I'm facing problem with many cell has drop call due to poor coverage.
i adjusted the coverage so that is improved. But drop call is much gone down.
anyone who have experience with ZTE WCDMA, give me some advice about the paramter which can make to reduce drop call?

RG
Dinh Lam

[hieubt]

I think you can adjust radio link parameters, enable the call recovery (check T314 and T315 timer values).

[lamhd_bk]

Dear
Thanks so much,
Anything else Mr Hieu.
?
Which radio parameter i can change?

RG

[hieubt]

Some radio parameters: T131, N313, T314, T315, N315, N302, T302. You can find it in: "WCDMA Parameter Setting Guidelines" of Qualcomm

[lamhd_bk]

So which is recommend value?

[hieubt]

You can refer the recommended values in this document:
http://www.scribd.com/doc/55367165/W...ing-Guidelines

[hieubt]

I think the best way to solve this problem is giving the best effort to optimize the RF condition (adjust layer 1).

[lamhd_bk]

Yeap!
I thinks that is best effort

RG

[hieubt]

Can you give me drive test log file of this area? I will take a look and learn something about this case.

[lamhd_bk]

How about Parameter at Cell Level?