发明名称 |
COMMUNICATIONS DEVICE HAVING CONTROLLER TO CORRECT AN INITIAL IQ IMBALANCE AND ASSOCIATED METHODS |
摘要 |
A communications device (20) includes a plurality of wireless transmitters (22, 42) operable at different respective frequencies and each configured to generate respective IQ signals having an initial IQ imbalance. The communications device also includes a frequency tunable auxiliary receiver (62), and a controller (21). The controller is configured to selectively couple a given wireless transmitter to the frequency tunable auxiliary receiver and tune the frequency tunable auxiliary receiver to a frequency of the given wireless transceiver, and apply predistortion to the given wireless transmitter based upon the initial IQ imbalance to reduce the initial IQ imbalance. |
申请公布号 |
CA2804451(A1) |
申请公布日期 |
2013.08.15 |
申请号 |
CA20132804451 |
申请日期 |
2013.01.31 |
申请人 |
RESEARCH IN MOTION LIMITED |
发明人 |
MUHAMMAD, KHURRAM;KRAVETS, OLEKSIY |
分类号 |
H04B1/04;H04B1/16 |
主分类号 |
H04B1/04 |
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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