Transmission device, wireless communication system, and transmission method
US11411633B2 · kind B2 · utility
1Cited by
2References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2019 |
| Grant date | Aug 9, 2022 |
| Priority date | — |
| Expiry date | May 6, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/6912
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A transmission device includes a modulation unit that performs chirp-spread modulation on an input information series to generate a modulation signal; a delay unit that provides, to a plurality of modulation signals obtained by duplicating the modulation signal generated by the modulation unit, delays having lengths different from each other, a difference between the delays being an integral multiple of a reciprocal of a bandwidth of the modulation signal; and a plurality of transmission antennas that transmit the plurality of modulation signals, respectively, to which the delays are provided by the delay unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.