发明名称 |
RECEIVER CALIBRATION WITH LO SIGNAL FROM INACTIVE RECEIVER |
摘要 |
Techniques for calibrating a receiver based on a local oscillator (LO) signal from another receiver are disclosed. In an exemplary design, an apparatus (e.g., a wireless device or an integrated circuit) includes first and second local oscillator (LO) generators. The first LO generator generates a first LO signal used by a first receiver for frequency downconversion. The second LO generator generates a second LO signal used by a second receiver for frequency downconversion in a first operating mode. The second LO signal is used to generate a test signal for the first receiver in a second operating mode. The second LO signal may be provided as the test signal or may be amplitude modulated with a modulating signal to generate the test signal. The test signal may be used to calibrate residual sideband (RSB), second order input intercept point (IIP2), receive path gain, etc. |
申请公布号 |
WO2014100048(A1) |
申请公布日期 |
2014.06.26 |
申请号 |
WO2013US75882 |
申请日期 |
2013.12.17 |
申请人 |
QUALCOMM INCORPORATED |
发明人 |
FERNANDO, UDARA C.;CHANG, LI-CHUNG;CHELLAPPA, VIJAY K.;BOSSU, FREDERIC;HUMNABADKAR, KETAN;SAHOTA, GURKANWAL SINGH |
分类号 |
H04B17/00 |
主分类号 |
H04B17/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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