IDENTIFYING SECOND GNSS NAVIGATION DATA AS POTENTIALLY MANIPULATED OR AS TRUSTWORTHY AT LEAST PARTIALLY BASED ON FIRST GNSS NAVIGATION DATA

摘要

A method performed by a mobile device and a corresponding apparatus are provided with the method including receiving first GNSS navigation data containing ephemeris data of at least one GNSS satellite and/or clock data of the at least one GNSS satellite for a first time period and determining extended first GNSS navigation data at least partially based on the first GNSS navigation data. The extended first GNSS navigation data contains ephemeris data and/or clock data of the at least one GNSS satellite for an extension time period. The method further includes receiving second GNSS navigation data containing ephemeris data of the at least one GNSS satellite and/or clock data of the at least one GNSS satellite for a second time period and determining, at least partially based on the extended first GNSS navigation data, whether or not the second GNSS navigation data are potentially manipulated.