Techniques for wireless time-of-flight calculation complexity reduction
US10466337B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 10, 2013 |
| Grant date | Nov 5, 2019 |
| Priority date | — |
| Expiry date | Apr 10, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/38
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Examples are disclosed for determining a time-of-flight (ToF) of a wireless signal in a multipath wireless environment. In some examples a method for determining a time-of-flight (ToF) of a wireless signal in a multipath wireless environment may comprise receiving two or more wireless signals over a wireless communication channel from wireless device, determining a maximum likelihood solution for identifying a line-of-sight (LoS) signal of the two or more wireless signals, reducing the complexity of the maximum likelihood solution, determining a time that maximizes the reduced complexity maximum likelihood solution, and determining the ToF of the LoS signal based on the reduced complexity maximum likelihood solution and the determined time. Other examples are described and claimed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.