Wireless device ranging
US10560912B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2015 |
| Grant date | Feb 11, 2020 |
| Priority date | — |
| Expiry date | Jul 18, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W56/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for detecting, by a first device, a timing measurement frame from a second device, the timing measurement frame having a plurality of time measurement samples, wherein at least the first of the measurement samples has a transmit timestamp value; determining transmit timing values for the subsequent measurement samples; applying a receive timestamp value to each of the received measurement samples; and determining a relative clock drift between a clock of the first device and a clock of the second device by comparing the receive timestamp values with transmit timing values of one or more measurement samples contained in the frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.