Low PAPR modulation for coverage enhancement
US9160579B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2014 |
| Grant date | Oct 13, 2015 |
| Priority date | — |
| Expiry date | Mar 26, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/3444
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method includes receiving a two-bit information stream comprising first and second bits and performing precoding using the two-bit information stream to determine multiple output signals. The precoding is performed to create a finite multiple of states for the output signals. The output signals comprise a first output signal based on a version of the first input bit and on a version of a second input bit, a second output signal based on a delayed version of the first input bit and the version of the second input bit, and a third output signal based on the version of first input bit and a delayed version of the second input bit. The method includes performing pulse shaping of each of the output signals to create pulse-shaped signals, combining the pulse-shaped signals to create a transmission waveform, and outputting the transmission waveform. Apparatus, computer programs, and computer program products are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.