Frequency transformed radiomap data set
AssigneeHERE Global B.V.
InventorsLauri Wirola, Jari Syrjarinne, Jukka Talvitie, Elena-Simona Lohan
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Abstract
It is disclosed to obtain a frequency transformed radiomap data set by applying a discrete frequency transform to an original radiomap data set. It is also disclosed to obtain a reconstructed radiomap data set by applying an inverse discrete frequency transform to a frequency transformed radiomap data set.
Claims20
A method for obtaining a frequency transformed radiomap data set, the method comprising:
- applying a discrete frequency transform to an original radiomap data set;
- generating a frequency transformed radiomap data set from the discrete frequency transform;
- and
- storing the frequency transformed radiomap data set for position calculation.
An apparatus comprising at least one processor and at least one memory including at least one computer program code, the at least one memory and the at least one computer program code configured to, with the at least one processor, cause at least one an apparatus at least to perform:
- applying a discrete frequency transform to an original radiomap data set;
- generating a frequency transformed radiomap data set from the discrete frequency transform;
- and
- storing the frequency transformed radiomap data set for position calculation.
A non-transitory computer readable storage medium is described, in which computer program code is stored, the program code including instruction to perform a method comprising:
- applying a discrete frequency transform to an original radiomap data set;
- generating a frequency transformed radiomap data set from the discrete frequency transform;
- and
- storing the frequency transformed radiomap data set for position calculation.
Dependencies are inferred from the claim text.