Method and apparatus for calibrating base station locations and perceived time bias offsets in an assisted GPS transceiver
US6445927B1 · kind B1 · utility
83Cited by
4References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2000 |
| Grant date | Sep 3, 2002 |
| Priority date | — |
| Expiry date | Sep 18, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2205/008
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A flowchart (400) includes the step (402) of collecting a predetermined number of TOA measurements arriving at the assisted satellite positioning mobile station from a base station, the step of (406) simultaneously collecting a corresponding number of GPS position measurements of a position of the GPS receiver, and the step (410) of computing the base station location and/or the step (414) of computing a perceived time bias offset required for a message to travel between the base station and the mobile station using the predetermined number of TOA measurements and the predetermined number of GPS position measurements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.