Quadrature amplitude modulation for time-reversal systems
US9407306B2 · kind B2 · utility
9Cited by
25References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2014 |
| Grant date | Aug 2, 2016 |
| Priority date | — |
| Expiry date | Apr 25, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W72/21
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Time-reversal wireless communication includes: at a base station, receiving a probe signal from a terminal device; generating a signature waveform that is based on a time-reversed signal of a channel response signal derived from the probe signal; performing quadrature amplitude modulation (QAM) on a transmit signal to generate a quadrature amplitude modulated signal; and generating a transmission signal based on the quadrature amplitude modulated signal and the signature waveform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.