Radio map improvement

This document discloses a solution for managing a radio map based on radio fingerprint measurements. According to one aspect, a method comprises: acquiring a radio map of an area, the radio map based on radio frequency measurements performed between at least one access node of a wireless network and a terminal device within the area; detecting at least one gap in the radio map and determining geographic coordinates of the at least one gap; causing transmission of a message comprising at least one information element requesting additional measurements and comprising geographic coordinates of the at least one gap; receiving, in response to the message, at least one radio frequency measurement report associated with the at least one terminal device and including radio frequency measurement data and at least one measurement location at which the radio frequency measurement data has been measured; and updating the radio map based on the radio frequency measurement data. 该文档公开了一种用于基于无线电指纹测量来管理无线电地图的解决方案。根据一个方面，一种方法