Handshaking protocol for time-reversal system
US9794156B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2016 |
| Grant date | Oct 17, 2017 |
| Priority date | — |
| Expiry date | Feb 11, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W56/001
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A handshaking process for time-reversal wireless communication is provided. A first device receives a handshake signal transmitted from a second device through multiple propagation paths, the handshake signal including a preamble and a training sequence, in which the training sequence includes a sequence of symbols known to the first and second devices. A synchronization index is determined based on the preamble, and the training sequence in the handshake signal is identified based on the synchronization index. A channel response signal is determined based on the received training sequence, and a signature waveform that is a time-reversed signal of the channel response signal is generated. A transmission signal is generated based on transmit data and the signature waveform, in which the transmit data are data configured to be transmitted to the second device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.