GPS holdover with selected bit prediction or omission
US10274603B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 2018 |
| Grant date | Apr 30, 2019 |
| Priority date | — |
| Expiry date | May 11, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/7075
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present disclosure is directed to utilities (methods, systems, apparatuses) associated with improving the signal-to-noise ratio of a wireless signal at a receiver. It is known in the art to correlate a received signal with a replica signal generated at the receiver to improve reception. However, the inventors have determined that correlation using a replica signal which is not completely accurate may be detrimental. An improved method of correlation disclosed herein includes identifying data bits which are predictable and performing correlation with respect to those data bits while ignoring data bits which are identified as unpredictable. This method may have particular advantages in the case of receivers having attenuated reception (e.g., indoors) after losing a data connection used for receipt of assistance data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.