Method and system for automatic control in an interference cancellation device
US7725079B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 9, 2006 |
| Grant date | May 25, 2010 |
| Priority date | — |
| Expiry date | Feb 14, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/123
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Signals propagating on an aggressor communication channel can cause detrimental interference in a victim communication channel. A signal processing circuit can generate an interference cancellation signal that, when applied to the victim communication channel, cancels the detrimental interference. The signal processing circuit can dynamically adjust or update two or more aspects of the interference cancellation signal, such as an amplitude or gain parameter and a phase or delay parameter. Via the dynamic adjustments, the signal processing circuit can adapt to changing conditions, thereby maintaining an acceptable level of interference cancellation in a fluctuating operating environment. A control circuit that implements the parametric adjustments can have at least two modes of operation, one for adjusting the amplitude parameter and one for adjusting the phase parameter. The modes can be selectable or can be intermittently available, for example.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.