Method for passive wireless channel estimation in radio frequency network and apparatus for same
US11763106B2 · kind B2 · utility
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7References
20Claims
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Key dates
| Filing date | Jun 5, 2019 |
| Grant date | Sep 19, 2023 |
| Priority date | — |
| Expiry date | Feb 15, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/886
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method, system and apparatus are provided for estimating characteristics of a wireless communication channel between at least two passive radio frequency (RF) nodes. Backscatter channel state information (BCSI) is measured during communication between the at least two passive RF nodes using the wireless communication channel. An RF node aggregates the measured BCSI and the aggregated BSCI is analyzed to detect at least one activity of a plurality of activities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.