US Patent 11408972 Device-centric learning of manipulated positioning

A method is disclosed that includes maintaining a database comprising identifying information indicative of one or more radio nodes and/or of one or more areas within which the one or more radio nodes are located. Each respective radio node of the one or more radio nodes is configured to enable positioning based on radio signals sent by the respective radio node. The positioning enabled by the respective radio node is considered to be at least partially unexpected. A corresponding apparatus, computer-readable storage medium and system are also provided.