ROBUST SPUR INDUCED TRANSMIT ECHO CANCELLATION FOR MULTI-CARRIER SYSTEMS SUPPORT IN AN RF INTEGRATED TRANSCEIVER
摘要
<p>A method and apparatus for eliminating transmit echo spurs is provided. The method includes the steps of: estimating a distortion effect applied to a transmit signal by a duplexer stop band. Next, the contribution of a primary component of the spur is estimated. An image component of the spur is estimated after the primary contribution has been estimated. The transmit echo is then subtracted from the composite desired signal by digitally subtracting the distortion effect, the primary component of the spur, and the image component of the spur, producing the desired composite transmit signal without the transmit echo.</p>
申请公布号
WO2013025563(A1)
申请公布日期
2013.02.21
申请号
WO2012US50472
申请日期
2012.08.10
申请人
QUALCOMM INCORPORATED;RIMINI, ROBERTO;HEIDMANN, PETER D.;KRISHNAMURTHI, RAJEEV;BURKE, JOSEPH PATRICK
发明人
RIMINI, ROBERTO;HEIDMANN, PETER D.;KRISHNAMURTHI, RAJEEV;BURKE, JOSEPH PATRICK