Obtaining Of Radio Fingerprints With Reduced Collecting Scope

An apparatus comprising at least one processor and at least one memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to perform:

• collecting radio fingerprints, each fingerprint comprising a respective radio signal measurement of a radio environment of a mobile device and a respective location estimate;
• determining whether the a location of the mobile device is part of a routine or deviates from the routine;
• and
• in case the location of the mobile device is part of the routine, performing the collecting of radio fingerprints, respectively during a given occurrence of the routine from among different occurrences of the routine, with a reduced overall collecting scope compared to a collecting scope used in case the location of the mobile device deviates from the routine;
• wherein the collecting of radio fingerprints, when the location of the mobile device is part of the routine, comprises collecting radio fingerprints, respectively during the different occurrences of the routine, over different segments of the routine so as to provide for more coverage of the routine after radio fingerprints have been collected for multiple occurrences of the routine.

A non-transitory computer readable storage medium in which computer program code is stored, the computer program code causing at least one apparatus to perform the following when executed by a processor:

• collecting radio fingerprints, each fingerprint comprising a respective radio signal measurement of a radio environment of a mobile device and a respective location estimate;
• determining whether a location of the mobile device is part of a routine or deviates from the routine;
• and
• in case the location of the mobile device is part of the routine, performing the collecting of radio fingerprints, respectively during a given occurrence of the routine from among different occurrences of the routine, with a reduced overall collecting scope compared to a collecting scope used in case the location of the mobile device deviates from the routine;
• wherein the collecting of radio fingerprints, when the location of the mobile device is part of the routine, comprises collecting radio fingerprints, respectively during the different occurrences of the routine, over different segments of the routine so as to provide for more coverage of the routine after radio fingerprints have been collected for multiple occurrences of the routine.