Method and system for positioning signal acquisition assistance window evaluation
AssigneeQUALCOMM Incorporated
InventorsMark Leo Moeglein, Wyatt Thomas Riley
Life of this patent
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Abstract
A system and method examines the quality of a positioning signal acquisition assistance window of an assisted position location system. The fit of acquisition assistance windows is examined using a posteriori knowledge of specific, or hypothetical, position measurements from a mobile station. A base station almanac manager compares mobile station measurement data to acquisition assistance window data, records an outcome based upon the comparison including a window quality value (WQ), or range of window quality values. Source data used in the generation of acquisition assistance windows is adjusted according to the window quality value.
Claims31
A method of evaluating acquisition assistance window quality for an assisted position location system, the method comprising:
- providing mobile station position measurement data;
- and
- comparing mobile station position measurement data to an acquisition assistance window;
- and
- evaluating acquisition assistance window quality based upon the comparison.
A system for evaluating acquisition assistance window quality of an assisted position location system, comprising:
- a position determination module comprising an almanac used in the generation of signal acquisition assistance data;
- and
- a computer for managing and updating the position determination module almanac according to a posteriori knowledge of mobile station measurements and position information.
A method of evaluating acquisition assistance window quality for an assisted position location system, the method comprising:
- comparing a posteriori mobile station position measurement data to a positioning signal acquisition assistance window;
- evaluating acquisition assistance window quality based on the comparison;
- and recording an outcome based upon the comparison.
Dependencies are inferred from the claim text.