公开(公告)号：US09025698B2

公开(公告)日：2015-05-05

申请号：US14241084

申请日：2012-09-06

申请人： Dong Chen ,  Fang Xiong

发明人： Dong Chen ,  Fang Xiong

IPC分类号： H04K1/02 ,  H04B1/62 ,  H03F1/32 ,  H04L27/36 ,  H03F3/24 ,  H04B1/04

CPC分类号： H04B1/62 ,  H03F1/3247 ,  H03F3/24 ,  H03F2200/111 ,  H04B1/0475 ,  H04B2001/0425 ,  H04L27/368

摘要： The present invention relates to the communications field, discloses a method and device for acquiring multi-frequency band digital predistortion (DPD) output signals, enables the result of DPD processing to compensate the intermodulation of multi-frequency band signal combinations after PA, and improves the ACLR of the signals after PA. Specifically, when performing DPD processing on an input signal received on a working frequency band, reference must be made to the DPD coefficients generated from the feedback signals of the signals previously received on the working frequency band and on other working frequency bands, and to the input signals currently received on other working frequency bands. In other words, intermodulation between the input signals received on working frequency bands are taken into consideration during the DPD processing work flow, so that the result of DPD processing can compensate the intermodulation of the multi-frequency band signal combinations after PA, and improves the accuracy of DPD processing, thereby enhancing the ACLR after wide band power amplification.

摘要翻译： 本发明涉及通信领域，公开了一种用于获取多频带数字预失真（DPD）输出信号的方法和装置，使得DPD处理的结果能够补偿PA之后的多频带信号组合的互调，并且改进 PA后信号的ACLR。 具体地说，当对在工作频带上接收到的输入信号进行DPD处理时，必须参考从先前在工作频带和其他工作频带上接收的信号的反馈信号产生的DPD系数， 当前在其他工作频段上接收的输入信号。 换句话说，在DPD处理工作流程期间考虑在工作频带上接收的输入信号之间的互调，使得DPD处理的结果可以补偿PA之后的多频带信号组合的互调，并且改善 DPD处理的准确性，从而在宽带功率放大后增强ACLR。

公开(公告)号：US20140219392A1

公开(公告)日：2014-08-07

申请号：US14241084

申请日：2012-09-06

申请人： Dong Chen ,  Fang Xiong

发明人： Dong Chen ,  Fang Xiong

IPC分类号： H04B1/62 ,  H04B1/04

CPC分类号： H04B1/62 ,  H03F1/3247 ,  H03F3/24 ,  H03F2200/111 ,  H04B1/0475 ,  H04B2001/0425 ,  H04L27/368

摘要： The present invention relates to the communications field, discloses a method and device for acquiring multi-frequency band digital predistortion (DPD) output signals, enables the result of DPD processing to compensate the intermodulation of multi-frequency band signal combinations after PA, and improves the ACLR of the signals after PA. Specifically, when performing DPD processing on an input signal received on a working frequency band, reference must be made to the DPD coefficients generated from the feedback signals of the signals previously received on the working frequency band and on other working frequency bands, and to the input signals currently received on other working frequency bands. In other words, intermodulation between the input signals received on working frequency bands are taken into consideration during the DPD processing work flow, so that the result of DPD processing can compensate the intermodulation of the multi-frequency band signal combinations after PA, and improves the accuracy of DPD processing, thereby enhancing the ACLR after wide band power amplification.

摘要翻译： 本发明涉及通信领域，公开了一种用于获取多频带数字预失真（DPD）输出信号的方法和装置，使得DPD处理的结果能够补偿PA之后的多频带信号组合的互调，并且改进 PA后信号的ACLR。 具体地说，当对在工作频带上接收到的输入信号进行DPD处理时，必须参考从先前在工作频带和其他工作频带上接收的信号的反馈信号产生的DPD系数， 当前在其他工作频段上接收的输入信号。 换句话说，在DPD处理工作流程期间考虑在工作频带上接收的输入信号之间的互调，使得DPD处理的结果可以补偿PA之后的多频带信号组合的互调，并且改善 DPD处理的准确性，从而在宽带功率放大后增强ACLR。