发明名称 |
SYSTEMS AND METHODS FOR DIGITAL PREDISTORTION IN A DUAL BAND TRANSMITTER |
摘要 |
<p>Systems and methods for providing digital predistortion to compensate for a non-linearity of a power amplifier in a dual-band transmitter are disclosed. In one embodiment, a first baseband signal is tuned to a first intermediate frequency to provide a first intermediate frequency signal. Likewise, a second baseband signal is tuned to a second intermediate frequency to provide a second intermediate frequency signal. The first and second intermediate frequency signals are combined to provide a combined intermediate frequency signal. The combined intermediate frequency signal is then predistorted to compensate for the non-linearity of the power amplifier in the transmitter to thereby provide a predistorted signal. In one embodiment, a separation between the first and second intermediate frequencies and/or a sampling rate for predistortion is minimized based on a target intermodulation order for the predistortion.</p> |
申请公布号 |
WO2013046183(A1) |
申请公布日期 |
2013.04.04 |
申请号 |
WO2012IB55213 |
申请日期 |
2012.09.28 |
申请人 |
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL);BAI, CHUNLONG;MORRIS, BRADLEY, JOHN |
发明人 |
BAI, CHUNLONG;MORRIS, BRADLEY, JOHN |
分类号 |
H03F1/32;H04B1/00;H04B1/04 |
主分类号 |
H03F1/32 |
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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