Baseband-derived RF digital predistortion
US8548403B2 · kind B2 · utility
26Cited by
87References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2013 |
| Grant date | Oct 1, 2013 |
| Priority date | — |
| Expiry date | Feb 25, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/03477
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A baseband-derived RF predistortion system using a lookup table having coefficients extracted at baseband and then applied at RF by means of a vector modulator. The architecture combines the narrowband advantage of envelope predistortion with the accuracy of baseband predistortion, and including compensation for memory effects. A polynomial-based alternative is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.