A method performed by an apparatus , said method comprising: - receiving one or more observation reports, wherein each of said observation reports is associated with a respective radio positioning support device (200, 200-1, 200-2) of a plurality of radio positioning support devices (200, 200-1, 200-2) of a radio positioning support system , wherein each radio positioning support device (200, 200-1, 200-2) of said plurality of radio positioning support devices (200, 200-1, 200-2) is installed at a fixed installation position and wherein each of said observation reports contains an indication for a number of radio positioning support devices (200, 200-1, 200-2) of said plurality of radio positioning support devices and/or for each radio positioning support device (200, 200-1, 200-2) of said plurality of radio positioning support devices (200, 200-1, 200-2) from which a radio positioning support signal is observable at the installation position of said respective radio positioning support device (200, 200-1, 200-2) with which said respective observation report is associated; - determining , based on said observation reports, whether a predetermined radio positioning support criterion is met by said radio positioning support system , wherein said predetermined radio positioning support criterion is met if it is determined that at any position within a coverage area of said radio positioning support system at least a predetermined number of different radio positioning support signals is observable; and - when it is determined that said predetermined radio positioning support criterion is not met by said radio positioning support system, at least partially reconfiguring and/or causing at least partially reconfiguring said radio positioning support system . - receiving one or more observation reports, wherein each of said observation reports is associated with a respective radio positioning support device (200, 200-1, 200-2) of a plurality of radio positioning support devices (200, 200-1, 200-2) of a radio positioning support system , wherein each radio positioning support device (200, 200-1, 200-2) of said plurality of radio positioning support devices (200, 200-1, 200-2) is installed at a fixed installation position and wherein each of said observation reports contains an indication for a number of radio positioning support devices (200, 200-1, 200-2) of said plurality of radio positioning support devices and/or for each radio positioning support device (200, 200-1, 200-2) of said plurality of radio positioning support devices (200, 200-1, 200-2) from which a radio positioning support signal is observable at the installation position of said respective radio positioning support device (200, 200-1, 200-2) with which said respective observation report is associated; - determining , based on said observation reports, whether a predetermined radio positioning support criterion is met by said radio positioning support system , wherein said predetermined radio positioning support criterion is met if it is determined that at any position within a coverage area of said radio positioning support system at least a predetermined number of different radio positioning support signals is observable; and - when it is determined that said predetermined radio positioning support criterion is not met by said radio positioning support system, at least partially reconfiguring and/or causing at least partially reconfiguring said radio positioning support system . <EOS>