Pilot-based analog active interference canceller
US9800287B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 2015 |
| Grant date | Oct 24, 2017 |
| Priority date | — |
| Expiry date | May 22, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/525
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Aspects of the disclosure are directed to interference cancellation. A method for performing interference cancellation in a wireless communications device having a transmitter, a receiver, a coefficient controller, an analog interference cancellation (AIC) circuit and a receive local oscillator (LO) includes utilizing a receive local oscillator (LO) to generate a transmit pilot; injecting the transmit pilot into a transmit chain for transmission; utilizing a receiver to receive a signal, wherein the signal includes the transmit pilot and an interference signal; and determining a set of coefficients for the interference cancellation based on an output signal from the receiver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.