Optimization technique for layered modulation
US7469019B2 · kind B2 · utility
3Cited by
192References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 18, 2007 |
| Grant date | Dec 23, 2008 |
| Priority date | — |
| Expiry date | Jan 18, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/42
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for optimizing a system for transmitting a layered modulated signal is disclosed. The method comprises the steps of defining the system in terms of a set of system parameters, including an optimal power separation S between a power of a first modulation layer and a power of a second modulation layer and a required system carrier-to-noise ratio (CNRS), determining an optimal power separation S to minimize the error rate of a lower layer modulated signal BERL, and selecting the remaining system parameters in the set of system parameters using the determined optimal power separation S.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.