Adaptive forward error corrector and method thereof, and TDD radio repeating apparatus using the same
US7826801B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 7, 2007 |
| Grant date | Nov 2, 2010 |
| Priority date | — |
| Expiry date | Jun 30, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/367
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An adaptive feedback estimation and cancellation (AFEC) apparatus includes: a controller for generating and outputting control information by using a synchronization signal from an external synchronization acquisition unit and base station information, in order to remove a feedback signal that exists in a forward/reverse repeater signal to be repeated and then send the forward/reverse repeater signal; a first feedback prediction canceller for adaptively removing a feedback signal that exists in the forward repeater signal based on the control information from the controller and automatically adjusting the gain of the forward repeater signal; and a second feedback prediction canceller for adaptively removing a feedback signal that exists in the reverse repeater signal based on the control information from the controller and automatically controlling the gain of the reverse repeater signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.