发明名称 |
RF TRANSMITTER, INTEGRATED CIRCUIT DEVICE, WIRELESS COMMUNICATION UNIT AND METHOD THEREFOR |
摘要 |
<p>A radio frequency (RF) transmitter has at least one digital signal processing module and at least one power amplifier module. The digital signal processing module includes at least one digital pre-distortion component arranged to receive at least one complex input signal, perform two-dimensional non-uniform mapping of the complex input signal to a first, in- phase, digital pre-distortion control word and a further, quadrature, digital pre-distortion control word, and output the in-phase and quadrature pre-distortion digital control words. The power amplifier module includes a first, in-phase, array of switch-mode power cells and at least one further, quadrature, array of switch-mode power cells. The two-dimensional non- uniform mapping has a pre-distortion profile at least partly based on an input/output relationship for the power amplifier module arranged to generate an analogue RF signal based at least partly on the in-phase and quadrature digital pre-distortion control words.</p> |
申请公布号 |
WO2012142873(A1) |
申请公布日期 |
2012.10.26 |
申请号 |
WO2012CN71661 |
申请日期 |
2012.02.27 |
申请人 |
MEDIATEK SINGAPORE PTE. LTD.;WANG, HUA;LU, CHAO;LIU, JULIA;PENG, CHUN-HSIEN;SON, SANG WON;LIANG, PAUL CHENG PO |
发明人 |
WANG, HUA;LU, CHAO;LIU, JULIA;PENG, CHUN-HSIEN;SON, SANG WON;LIANG, PAUL CHENG PO |
分类号 |
H04L25/49 |
主分类号 |
H04L25/49 |
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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