2G Non radio drops

[islam wagih]

Dear Experts,
Kindly support as I have 2G non radio drops on some sites "some of them on the whole site and others in only one cell"; we change all HW "RUS,DUG,Feeders,Cables" we changed all HW but problem still exist. Please any Expert can support :)

[techfolkcmr]

please mention your vendor to guide/assist ...

[bluep]

How about driving test results ?

[yafawi79]

Dear Islam:

Since the problem is not related to Radio, It Could be caused by link disturbance A-Bis interface (High BSS Drops). Thanks and best regards,

[techfolkcmr]

Dear Experts,
Kindly support as I have 2G non radio drops on some sites "some of them on the whole site and others in only one cell"; we change all HW "RUS,DUG,Feeders,Cables" we changed all HW but problem still exist. Please any Expert can support :)

The reason why i have asked about vendor is, we have faced the same situation in a BSC (NORTEL) because of Hardware fault (Duplexer Module) in a particular sector which accounts for NON-RF drops. Please have a keen look into your KPI which definitely will throw some light into the issue.

[islam wagih]

Dears,
the vendor is E*******, also how parameters can affect on "non radio" drops, we change all hardware and no transmission problem and the site is IPRAN

[VitalyK]

Maybe it's faulty terminal? Do these problematic cells place in same area?

[islam wagih]

no, different areas

[Optimustron]

IP when it works is like a charm, however sometimes it have some troubles that reflect in drop calls, check your IP link for packet losses and as first action do a reset and then wait and see the behaviour of the link, check if the sites with problems are linked to a TX node in common because can be a matter of time reference of IP links. I hope this can help you, regards,

[bluep]

Dear islam
Do you already fix the problem ? Pls share solution

[islam wagih]

unfortunately, not yet !