Start your reading about thesis process from here: http://www.oulu.fi/eeng/node/6987
Descriptions of free master's thesis topics can be found from TTK OPTIMA's folder entitled "CWC Thesis Topics". Contact topic's supervisor for obtaining more information about a free topic.
Instructions for the master's thesis process and eGRADU & LATURI environment needed in the final phase of graduation can be found from this page.
You will also need these documents and instructions during your master's thesis work:
URGUND system: http://www.oulu.fi/urkundsystem/
LATURI system: https://laturi.oulu.fi/
Last updated: 18.10.2019