How to upgrade BW 7.02 Non-unicode to BW 7.31 Non-unicode?

Hi Experts,

Can anyone help me with steps to upgrade BW 7.02 Non-unicode server to BW 7.31 Non-unicode server?

Upgrade should be done non-unicode to non-unicode ( without unicode conversion ).

I have gone through the following Link

http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/70bf34ec-5db8-2f10-0d8f-f6d47391cafb?QuickLink=index&…

But did not get clear picture of non-unicode to non-unicode.

Kindly help.

Thank you

Regards

Pavan