公开(公告)号：US08331509B2

公开(公告)日：2012-12-11

申请号：US13112562

申请日：2011-05-20

申请人： Wei Wang ,  Tao Pu ,  Jiefeng Deng ,  Siqing Ye

发明人： Wei Wang ,  Tao Pu ,  Jiefeng Deng ,  Siqing Ye

IPC分类号： H03D1/04

CPC分类号： H04B1/525 ,  H04B1/126 ,  H04L25/03006

摘要： A method and a device for cancelling transmitter interference in a transceiver, and a transceiver are provided. The method includes: coupling a part of radio frequency signals output from a transmitter, performing amplification, frequency conversion, analog-digital conversion, and digital filtration on the coupled signal by an interference receiver, and outputting a digital signal; performing adaptive equalization on the digital signal output from the interference receiver, and delaying predetermined time of the digital signal output from a receiver, and subtracting the equalized digital signal from the delayed digital signal.

摘要翻译： 提供了用于消除收发器中的发射机干扰的方法和装置，以及收发机。 该方法包括：通过干扰接收机耦合从发射机输出的射频信号的一部分，对耦合信号进行放大，频率转换，模拟数字转换和数字滤波，并输出数字信号; 对从干扰接收机输出的数字信号进行自适应均衡，并延迟从接收机输出的数字信号的预定时间，并从延迟的数字信号中减去均衡的数字信号。

公开(公告)号：US20110228828A1

公开(公告)日：2011-09-22

申请号：US13112562

申请日：2011-05-20

申请人： Wei WANG ,  Tao Pu ,  Jiefeng Deng ,  Siqing Ye

发明人： Wei WANG ,  Tao Pu ,  Jiefeng Deng ,  Siqing Ye

IPC分类号： H04B1/38

CPC分类号： H04B1/525 ,  H04B1/126 ,  H04L25/03006

摘要： A method and a device for cancelling transmitter interference in a transceiver, and a transceiver are provided. The method includes: coupling a part of radio frequency signals output from a transmitter, performing amplification, frequency conversion, analog-digital conversion, and digital filtration on the coupled signal by an interference receiver, and outputting a digital signal;performing adaptive equalization on the digital signal output from the interference receiver, and delaying predetermined time of the digital signal output from a receiver, and subtracting the equalized digital signal from the delayed digital signal.

摘要翻译： 提供了用于消除收发器中的发射机干扰的方法和装置，以及收发机。 该方法包括：通过干扰接收机耦合从发射机输出的射频信号的一部分，对耦合信号进行放大，频率转换，模拟数字转换和数字滤波，并输出数字信号; 对从干扰接收机输出的数字信号进行自适应均衡，并延迟从接收机输出的数字信号的预定时间，并从延迟的数字信号中减去均衡的数字信号。

公开(公告)号：US08023587B2

公开(公告)日：2011-09-20

申请号：US11945168

申请日：2007-11-26

申请人： Jiefeng Deng ,  Erni Zhu ,  Yong Du

发明人： Jiefeng Deng ,  Erni Zhu ,  Yong Du

IPC分类号： H04K1/02

CPC分类号： H03F1/3247 ,  H03F1/3241 ,  H04B2001/0425

摘要： A device and method for pre-distorting a base-band digital signal. The device includes an adaptive parameter calculation unit and a pre-distorter. The adaptive parameter calculation unit is adapted to calculate nonlinear filter parameters in accordance with samples of a base-band digital signal and a feedback signal of a radio frequency channel, and output a calculation result to the pre-distorter. The pre-distorter is adapted to store and update the nonlinear filter parameters, perform power statistics of the base-band digital signal, select nonlinear filter parameters corresponding to a result of the power statistics, pre-distort the base-band digital signal, and output the pre-distorted base-band digital signal. With the method, the non-linearity of a power amplifier may be improved, different non-linearity inverse models may be selected according to different input signals and power amplifier characteristics, and the efficiency of a base station transmitter may be improved.

摘要翻译： 用于预失真基带数字信号的装置和方法。 该装置包括自适应参数计算单元和预失真器。 自适应参数计算单元适于根据基带数字信号和射频信道的反馈信号的采样来计算非线性滤波器参数，并将计算结果输出到预失真器。 预失真器适于存储和更新非线性滤波器参数，执行基带数字信号的功率统计，选择对应于功率统计结果的非线性滤波器参数，对基带数字信号进行预失真，以及 输出预失真的基带数字信号。 利用该方法，可以提高功率放大器的非线性度，可以根据不同的输入信号和功率放大器特性选择不同的非线性逆模型，并且可以提高基站发射机的效率。