Invention Grant
- Patent Title: Method and apparatus for position determination with extended SPS orbit information
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Application No.: US14877114Application Date: 2015-10-07
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Publication No.: US10534088B2Publication Date: 2020-01-14
- Inventor: Michael James Wengler , Leonid Sheynblat , Mark Leo Moeglein , Zoltan F. Biacs , Arnold Jason Gum
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Thien T. Nguyen
- Main IPC: G01S19/25
- IPC: G01S19/25 ; G01S19/05 ; G01S19/27

Abstract:
A method and system for assisting mobile stations to locate a satellite use an efficient messaging format. A server computes a correction between coarse orbit data of a satellite and precise orbit data of the satellite. A coordinate system is chosen such that variation of the correction is substantially smooth over time. The server further approximates the correction with mathematical functions to reduce the number of bits necessary for transmission to a mobile station. The mobile station, upon receiving the coefficients, evaluates the mathematical functions using the coefficients and a time of applicability (e.g., the current time), converts the evaluated result to a standard coordinate system, and applies the conversion result to the coarse orbit data to obtain the precise orbit data.
Public/Granted literature
- US20160025862A1 METHOD AND APPARATUS FOR POSITION DETERMINATION WITH EXTENDED SPS ORBIT INFORMATION Public/Granted day:2016-01-28
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