Digital pre-distortion systems in transmitters
US9608676B2 · kind B2 · utility
5Cited by
0References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 12, 2013 |
| Grant date | Mar 28, 2017 |
| Priority date | — |
| Expiry date | Sep 2, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/0425
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Various digital pre-distortion systems for use in transmitters are disclosed. The digital pre-distortion system comprises an observing path, which performs either undersampling or radio frequency sampling of the output of a power amplifier. Undersampling may be performed at a rate, which causes aliasing to occur in the undersampled frequency domain. Both undersampling and radio frequency sampling reduces the complexity of the digital pre-distortion system by removing any down mixing modules or anti-aliasing modules, while maintaining reasonable performance of the digital pre-distortion systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.