What can be the reason of 100% IRAT (4G to 5G) Handover getting failed in Preparation phase?

Mobility
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1

Dear Experts.

What can be the reason of 100% IRAT (4G to 5G) Handover getting failed in Preparation phase?

ANR is activated for LTE to NR NBR Addition.

2

What do you mean by preparation phase?

Ho_require is being sent out or not? You can confirm from log.

3

HO Require is sent.

4

:+1:
Check for target log, if this has been received.

And log / call flow in target gNB.

5

Thanks. But I have only OSS KPIs…