MONITORING A QUALITY OF A TERRESTRIAL RADIO BASED POSITIONING SYSTEM

摘要

An apparatus generates at least one request for determination of a location of a mobile device based on information on terrestrial radio signals determined by the mobile device and based on stored positioning data. The stored positioning data is based on information on terrestrial radio signals provided by at least one mobile device. The apparatus further determines a value of at least one quality parameter by evaluating a response to the request in view of an indication of a position of the mobile device that has been determined based on satellite signals.