SYSTEMS AND METHODS FOR ACTIVE INTERFERENCE CANCELLATION TO IMPROVE COEXISTENCE
摘要
<p>This disclosure describes techniques for providing active interference cancellation in a wireless communication system having a Bluetooth transmit chain and a WLAN receive chain. A signal sampled from the Bluetooth transmit chain is gain and phase adjusted to offset interference in the WLAN receive chain. A quadrature phase shifter may be used to generate quadrature components of the sampled signal that are selectively combined to achieve a desired phase adjustment. The phase shifter may be stabilized by a variable capacitor. These techniques may be extended to MIMO systems.</p>
申请公布号
WO2014055796(A1)
申请公布日期
2014.04.10
申请号
WO2013US63322
申请日期
2013.10.03
申请人
QUALCOMM INCORPORATED
发明人
KHEIRKHAHI, ALIREZA;ABDOLLAHI-ALIBEIK, SHAHRAM;NATHAWAD, LALITKUMAR;GONG, KE;AGAH, ALI