Map-aided satellite selection
AssigneeQUALCOMM Incorporated
InventorUrs NIESEN
Life of this patent
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Abstract
Techniques for map-aided satellite selection are provided. An example of a method for determining a location according to the disclosure includes determining a future trajectory of a user equipment, estimating an environment model associated with the future trajectory, determining a plurality of expected navigation satellites based on the future trajectory and the environment model, selecting a set of navigation satellites to use in computing the current location based in part on the plurality of expected navigation satellites, and computing the current location based on the selected set of navigation satellites.
Claims30
A method for determining a current location with a user equipment, comprising:
- determining a future trajectory of the user equipment;
- estimating an environment model associated with the future trajectory;
- determining a plurality of expected navigation satellites based on the future trajectory and the environment model;
- selecting a set of navigation satellites to use in computing the current location based in part on the plurality of expected navigation satellites;
- and
- computing the current location based on the selected set of navigation satellites.
A navigation device, comprising:
- a memory;
- a global navigation satellite system receiver;
- at least one processor operably coupled to the memory and the global navigation satellite system receiver and configured to:
- determine a future trajectory of the navigation device;
- estimate an environment model associated with the future trajectory;
- determine a plurality of expected navigation satellites based on the future trajectory and the environment model;
- select a set of navigation satellites to use in computing a current location based in part on the plurality of expected navigation satellites;
- and
- compute the current location based on signal received by the global navigation satellite system receiver received from the set of navigation satellites.
An apparatus for determining a current location, comprising:
- means for determining a future trajectory of the apparatus;
- means for estimating an environment model associated with the future trajectory;
- means for determining a plurality of expected navigation satellites based on the future trajectory and the environment model;
- means for selecting a set of navigation satellites to use in computing the current location based in part on the plurality of expected navigation satellites;
- and
- means computing the current location based on the selected set of navigation satellites.
A non-transitory processor-readable storage medium comprising computer-readable instructions configured to cause one or more processors to determine a current location with a user equipment, comprising:
- code for determining a future trajectory of the user equipment;
- code for estimating an environment model associated with the future trajectory;
- code for determining a plurality of expected navigation satellites based on the future trajectory and the environment model;
- code for selecting a set of navigation satellites to use in computing the current location based in part on the plurality of expected navigation satellites;
- and
- code for computing the current location based on the selected set of navigation satellites.
Dependencies are inferred from the claim text.