Compensation of an asymmetric frequency response of a radio
US8503952B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2008 |
| Grant date | Aug 6, 2013 |
| Priority date | — |
| Expiry date | Jul 26, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/0433
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method and apparatus of compensating for an asymmetric frequency response of a radio are disclosed. One method includes estimating a slope control signal, the slope control signal indicating a slope of a frequency response of an amplifier chain of the radio. A difference between gain at positive frequencies and gain at negative frequencies of a complex baseband signal is adjusted with the slope control signal, wherein the complex signal includes an I component and a Q component. The adjusted complex baseband signal is frequency up-converted into a radio signal. The radio signal is amplified by the amplifier chain. The amplified radio signal is transmitted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.