Method and apparatus for interference cancellation
US8036606B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 3, 2009 |
| Grant date | Oct 11, 2011 |
| Priority date | — |
| Expiry date | Mar 20, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/525
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An interference canceller between a transmit chain and a receive chain of a transceiver is proposed to complement the action of a diplexer, or duplex filter, that is part of the transceiver. The interference canceller comprises a transmit chain tap, a receive chain coupler for coupling an interference compensation signal into the receive chain, and an interference signal processing path between the transmit chain tap and the receive chain coupler. The interference signal processing path comprises a filter having filtering characteristics similar or corresponding to the filtering characteristic of a receive portion of said diplexer. A corresponding method for interference cancellation is also proposed. Computer-program products for the manufacture of the interference canceller and the execution of the method are also proposed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.