Dynamically encrypted radio frequency fingerprinting
US12149938B2 · kind B2 · utility
0Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2020 |
| Grant date | Nov 19, 2024 |
| Priority date | — |
| Expiry date | Feb 11, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/79
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Aspects described herein provide for hardening an RF signature by dynamically utilizing a sending device carrier frequency offset (CFO) as part of the RF signature. The CFO and the CFO varying pattern of wireless devices observed. A radio frequency signature at a sending device is paired to a frequency offset estimation algorithm at a receiving device, the final CFO estimation error may be bounded to a small range for various applications and communication protocols, and utilized to properly identify the sending device at the receiving device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.