Adaptive mode switching method for simultaneous wireless power/information transmission operating in dual mode and apparatus for performing the same
US10819164B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 26, 2018 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | Dec 26, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/34
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to an adaptive mode switching method for simultaneous wireless power/information transmission operating in a dual mode and an apparatus for performing the same. The adaptive mode switching apparatus for simultaneous wireless power/information transmission operating in a dual mode includes: an energy harvesting unit; a single tone information receiving unit; a multi-tone information receiving unit; a time-division switch; and an adaptive mode switching control unit which determines a communication mode and a modulation index based on a battery status, the magnitude of the received signal, and a data transmission rate and controls the time-division switch in accordance with the selected communication mode and modulation index. It is possible to overcome a limited energy transmission area of simultaneous wireless power/information transmission (SWIPT) using a single tone in a low power IoT environment and a low transmission rate of a peak-to-average power ratio (PAPR)-based SWIPT using a multi-tone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.