A method for transmitting a discovery message for device to device communication from a first user equipment to a second user equipment includes: receiving or generating, by the first user equipment, a position information defining a geographical position; generating, by the first user equipment, the discovery message; and transmitting, by the first user equipment, the discovery message to the second user equipment using a common air interface of the first user equipment and the second user equipment. The discovery message comprises a position information part such that at least a part of the position information is transmitted from the first user equipment to the second user equipment.