Hi,
In our network where we have NSN RNC & Huawei PS core.
Recently intergared NSN RNC into new ATCA based USN SGSN and found the nodeB in RNC suffering with HSDPA & HSUPA retainability.
I'm afraid the nodeB in new RNC which is connected to new USN, droping the PS calls when it moves/Ho to other RNC which are connected to the old SGSN.

So would appreciate if someone could share if there is any parameter/timer in SGSN that must be checked againts the RNC and between the new & old SGSN.

Thank you