Aiding location determinations in satellite positioning system receivers
First Claim
Patent Images
1. A method for locating a satellite positioning system receiver, the method comprising:
- obtaining at least one satellite pseudo range measurement;
determining a position solution for the satellite positioning system receiver using the at least one pseudo range measurement;
constraining the position solution determination with an uncertainty constraint associated with uncertainty of information used to determine the position solution of the satellite positioning system receiver.
4 Assignments
0 Petitions
Accused Products
Abstract
A method for locating a satellite positioning system receiver, for example, a satellite positioning system enabled wireless communications device in cellular network, including obtaining a coarse position and/or a time estimate (210), and computing a satellite positioning system based position and/or time solution (240) that is constrained by uncertainty information associated with the coarse position and/or a time estimate. The uncertainty constraints may also be used to identify erroneous measurements used to compute the position solution.
-
Citations
18 Claims
-
1. A method for locating a satellite positioning system receiver, the method comprising:
-
obtaining at least one satellite pseudo range measurement;
determining a position solution for the satellite positioning system receiver using the at least one pseudo range measurement;
constraining the position solution determination with an uncertainty constraint associated with uncertainty of information used to determine the position solution of the satellite positioning system receiver. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A method in mobile wireless communications device, the method comprising:
-
computing position solution information for the mobile wireless communications device;
constraining the position solution information computation with an uncertainty constraint based upon uncertainty information associated with information used to compute the position solution information. - View Dependent Claims (9, 10, 11)
-
-
12. A method for computing the location of a satellite positioning system receiver, the method comprising:
-
determining an over-determined position solution using information including at least one of coarse position and coarse time information;
evaluating the information used to compute the over-determined position solution using residual information from the over-determined position solution and using uncertainty information for the at least one of the coarse location estimate and coarse time estimate used to compute the over-determined position solution. - View Dependent Claims (13, 14)
-
-
15. A method in a satellite positioning system receiver, the method comprising:
-
determining a satellite positioning system time solution for the satellite positioning system receiver;
constraining the satellite positioning system time solution determination with an uncertainty constraint associated with uncertainty of information used to determine the satellite positioning system time solution. - View Dependent Claims (16, 17, 18)
-
Specification