DB Page Size 4K --> 16K Increment for a Unicode Migration?

Hi Guys

Currently we are migrating a SAP system 47x200 Non-Unicode which has a page size 4K due installed DB2 version is 8.1

Since the target Database is v 9.7 and also we are performing an Unicode Migration, i´d like if you can shed some light on recommended Page Size

I understand latest SAP Installations has a 16k page size as default, and also for UNICODE systems to acommodate the increased row width.

Therefore I would assume is mandatory and/or recommended to convert page size from 4k to 16k?

Is there any SAP Note with this recommendation, so I can forware it and discuss this with DB Team.

Thanks!