SUPPORTING LOCATION BASED OPERATIONS

摘要

An apparatus performs continuous measurements on terrestrial signals transmitted by nodes of a communication network to obtain results of measurements. Furthermore, the apparatus continuously determines a position of the mobile device based on the results of measurements at the mobile device and based on data stored in the mobile device, the data including data on characteristics of nodes of at least one communication network that are based at least partly on results of measurements at a plurality of mobile devices on terrestrial signals transmitted by nodes of the at least one communication network.