| 摘要 |
<p>PROBLEM TO BE SOLVED: To enable a mobile device to efficiently and seamlessly determine its own position even when time elapses and/or when the mobile device experiences a changing radio-frequency (RF) environment.SOLUTION: A method comprises: obtaining position fix information from at least a satellite positioning system (SPS) signal; updating said position fix information based at least in part on a signal metric associated with one or more non-SPS sources; and obtaining a subsequent position fix from an SPS signal using said updated position fix information.</p> |
