The UN peacekeeping force in Ivory Coast, known as UNOCI, is set to reduce its size from about 9, 000 military personal by one battalion to 8, 837 by 31 July.
In a report to the Security Council, Mr Ban said drones should be considered for Ivory Coast to "enhance situational awareness and monitoring ability, with a view to strengthening the ability of UNOCI to efficiently and effectively carry out its mandate, including the protection of civilians".