Method for providing positioning data in a positioning node of a radio network, which positioning data is associated with a mobile device including a radio unit, the method comprising the steps of establishing a radio session for receiving positioning data in the positioning node from the radio unit; transmitting report control data to the radio unit, wherein the report control data identifies a request to report positioning data obtained in the device, wherein said positioning data includes inertial measurement data; and receiving positioning data from the radio unit in accordance with the report control data.