Long-range modem scheme
US11736227B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2021 |
| Grant date | Aug 22, 2023 |
| Priority date | — |
| Expiry date | Sep 14, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Technologies directed to hash spreading to extend a wireless coverage are described. One method includes receiving input bits and control information that specifies a first data rate and a second modem scheme having a second signal range that is greater than a first signal range corresponding to a first modem scheme. The method generates a first sequence of bits by scrambling the input bits, the first sequence of bits having a first number of bits. The method generates a second sequence of bits by hash spreading the first sequence of bits using a set of spreading codes. The second sequence of bits has a second number of bits greater than the first number of bits. The method generates first symbols by modulating the second sequence, converts the first symbols into radio frequency (RF) signals, and sends the RF signals to the second wireless device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.