Patent ID: 8200430

Claim:
A method for providing integrity information for users of a global navigation system, said method comprising: a plurality of space vehicles transmitting information to a user device for position detection; wherein the transmitted information includes, a first information from the global navigation system about the accuracy of a signal in space error SISE of a faulty space vehicle; and a second information that specifies whether or not the global navigation system assesses the faulty space vehicle as faulty; wherein the first information comprises: information about the quality of a signal in space SIS broadcast by the space vehicles, which is called signal in space accuracy SISA and corresponds to a prediction of a width of a statistical distribution of SISE; information about accuracy of a monitoring of the signal in space SIS broadcast by the space vehicles by a ground segment of the global navigation system, which is called signal in space monitoring accuracy SISMA and corresponds to a width of a statistical distribution of a difference between an estimated and a true value of SISE; and the second information comprises: information about a signal in space SIS broadcast by space vehicles, which should not be used, which is called integrity flag IF.