"Iran presented a new proposal on practical measures as a constructive contribution to strengthen cooperation and dialogue with a view to future resolution of all outstanding issues," the agency`s chief inspector Tero Varjoranta said.
"Following the substantive discussions, it was decided that a further meeting will be held on November 11 in Tehran in order to take this cooperation forward," he said.
Iran`s new envoy to the International Atomic Energy Agency, Reza Najafi, said the new proposal would allow both sides "to open a new chapter of cooperation."
The meeting in Vienna was one of a series in the Austrian capital ahead of Iran`s talks with six world powers in Geneva on November 7-8.
While those talks are focused on Iran`s current nuclear activities, the IAEA meeting -- the 12th since early 2012 -- was about allegations that Tehran conducted nuclear weapons research prior to 2003.