What is the reason for a very high no. of intra_ frequency_hho on RNC border in Nokia

hi
i have very high no. of intra_ frequency_hho on RNC border both are nokia RNC and IUR exists
what is the reason for this and how can I fix it

Check whether HS is active over IuR for both RNCs side.
HS Over IuR i meant

It’s enabled

The triggering threshold is it event or periodic based

hho counter is being pegged during intra freq ho

More enlightment