Abstract: A method for generating substitute correction data for GNSS-based localization of a mobile device is disclosed. The method includes: a) recognizing that receipt of correction data from at least one correction data source is currently impaired, b) reading of correction data that has been received earlier, and c) generating substitute correction data for the current situation by using at least part of the correction data that has been received earlier.

Abstract: A method for operating a GNSS-based navigation module in a vehicle during a starting phase of the vehicle is disclosed. The method includes a) requesting initial GNSS navigation data from an external data source which provides data at a data rate which is greater than a data provision rate of a regular data source of a GNSS system for GNSS navigation data, and receiving the initial GNSS navigation data from this external data source, b) requesting initial GNSS correction data from an external data source which provides data at a data rate which is greater than a data provision rate of a regular data source of a GNSS system for GNSS correction data, and receiving the initial GNSS correction data from this external data source, and c) determining at least one initial output parameter on the basis of the initial GNSS navigation data and the initial GNSS correction data.

Abstract: The disclosure concerns a method for GNSS-based location of a vehicle having a GNSS location device in view of integrity information provided in relation to GNSS correction data, comprising at least the following steps: (a) receiving GNSS correction data for correcting delay measurements for GNSS-based location from a GNSS correction data provision system, (b) receiving at least one piece of integrity information about the reliability of the GNSS correction data from the GNSS correction data provision system, (c) evaluating the at least one piece of integrity information about the reliability of the GNSS correction data that was received in step (b), and (d) influencing GNSS-based location of the vehicle on the basis of the evaluation from step (c).

Abstract: A method for determining navigation data by way of a GNSS localization device is disclosed. The method includes a) obtaining GNSS satellite signals from GNSS satellites; b) receiving at least two alternative GNSS correction data from at least two different correction data sources c) analyzing the alternative GNSS correction data and determining the validated correction data; and d) determining navigation data from received GNSS satellite signals and validated correction data.

Abstract: The disclosure concerns a method for GNSS-based location of a vehicle having a GNSS location device in view of integrity information provided in relation to GNSS correction data, comprising at least the following steps: (a) receiving GNSS correction data for correcting delay measurements for GNSS-based location from a GNSS correction data provision system, (b) receiving at least one piece of integrity information about the reliability of the GNSS correction data from the GNSS correction data provision system, (c) evaluating the at least one piece of integrity information about the reliability of the GNSS correction data that was received in step (b), and (d) influencing GNSS-based location of the vehicle on the basis of the evaluation from step (c).