Syria's foreign minister has said he has handed Russia plans for a ceasefire in Aleppo, and was ready to exchange lists with rebel forces on a possible prisoner swap.

In a news conference on Friday in Moscow, Walid al-Moualem said he had handed his Russian counterpart, Sergey Lavrov, details of the ceasefire, plus plans for a prisoner exchange and the opening of humanitarian corridors in Syria.

The offer came hours before the main opposition bloc, the Syrian National Coalition, was due to decide whether it would participate in peace talks scheduled by the UN next week in Geneva.

Al Jazeera's Paul Brennan reports from Moscow.