Gain control apparatus and method in receiver of multiband OFDM system
US8213891B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 22, 2009 |
| Grant date | Jul 3, 2012 |
| Priority date | — |
| Expiry date | Sep 29, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G3/3068
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A gain control apparatus in a receiver of multiband OFDM system includes: an amplifier amplifying a received signal based on a first auto gain control signal; an analog-to-digital converter for converting the amplified signal into a digital signal; band reception signal extractor for extracting a signal of a desired reception band from the converted digital signal for each reception band, and controlling gain of the extracted signal according to a second auto gain control signal; a reception power detector for detecting a reception power value of whole band from the converted digital signal; and a multiband integration baseband processor for generating the first auto gain control signal by using the detected reception power value of the whole band, and generating the second auto gain control signal to be provided to the band reception signal extraction units, resource allocation information for each band and a reception power for each reception band.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.