I am using BSS of Alcatel. For 3 years, I can not improve Handover success rate (from 900MHz to 1800 MHz_ macro to macro cell). I have tried many times and many ways but not. The unsuccess cause is radio fail (no congestion). I checked performace hourly for many day and found out that sometimes they (Cells) work well and sometimes they do not.
Can you give me any recommendation?.
Thanks a lot.