Method and apparatus for quadrature signal modulation
US9794104B1 · kind B1 · utility
5Cited by
1References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2016 |
| Grant date | Oct 17, 2017 |
| Priority date | — |
| Expiry date | Apr 11, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/152
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus for facilitating wireless communication using digital Quadrature Amplitude Modulation are disclosed. A mapping module electronic component of a wireless communication device utilizes a signal constellation for quadrature modulating a signal for transmission or quadrature demodulating a received signal. The signal constellation includes multiple constellation symbols and associated bit sequences. Specific signal constellations are disclosed. The signal constellations may be obtained through an optimization procedure which accounts for both phase noise and power amplifier nonlinearity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.