Method for pre-distorting and a pre-distorter
US9184814B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 28, 2011 |
| Grant date | Nov 10, 2015 |
| Priority date | — |
| Expiry date | Mar 28, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/24
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The document discloses a pre-distorter, which comprises: a pre-distortion module, which is configured to pre-distort a plurality of baseband input signals by an equal number of pre-distortion functions to obtain an equal number of pre-distorted signals respectively, wherein all of the baseband input signals input into every pre-distortion function, and each pre-distortion function has one output; an adder, which is configured to combine all of the pre-distorted signals output from every pre-distortion function into one combined signal; and a power amplifier (PA), which is configured to amplify the combined signal, wherein the cascade of the pre-distortion functions and the PA are linear overall. And the document also discloses a method for distorting. The document reduces the implementation cost of a pre-distorter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.