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1. 发明申请

WO2015148166A1 ADAPTIVE DIGITAL PRE-DISTORTION 审中-公开
标题翻译：自适应数字预失真
公开(公告)号：WO2015148166A1
公开(公告)日：2015-10-01
申请号：PCT/US2015/020687
申请日：2015-03-16
申请人： QUALCOMM INCORPORATED
发明人： CHENG, Haojen , ZHOU, Hao , HUANG, Chiao-Cheng
IPC分类号： H04L25/03 , H03F1/32 , H04L27/36
CPC分类号： H03F1/3241 , H03F2201/3215 , H03F2201/3233 , H04B1/0475 , H04B2001/0425 , H04L25/03343 , H04L27/368
摘要： Methods, systems, and devices are described for adaptive digital pre-distortion (DPD). A wireless device may identify a transmission parameter, such as data rate or transmission power, for a signal to be transmitted by a wireless modem. The wireless device may then select a power amplification response based on whether the transmission parameter exceeds a threshold. A non-linear power amplification response may be selected in cases when the data rate is low or the transmission power is high. A linear power amplification response may be selected when the data rate is high or the transmission power is low. The power amplification response may be achieved by digital distortion of the signal prior to power amplification, so selection of the response may involve adjusting a DPD compensation circuit. In some cases, the output for the non-linear response may be characterized by a Rapp model.
摘要翻译：描述了用于自适应数字预失真（DPD）的方法，系统和设备。无线设备可以识别要由无线调制解调器发送的信号的传输参数，例如数据速率或传输功率。然后，无线设备可以基于传输参数是否超过阈值来选择功率放大响应。在数据速率低或发送功率高的情况下，可以选择非线性功率放大响应。当数据速率高或发送功率低时，可以选择线性功率放大响应。功率放大响应可以通过在功率放大之前的信号的数字失真来实现，因此响应的选择可以涉及调整DPD补偿电路。在某些情况下，非线性响应的输出可以由Rapp模型表征。

2. 发明申请

WO2014081601A1 SPUR DETECTION, CANCELLATION AND TRACKING IN A WIRELESS SIGNAL RECEIVER 审中-公开
标题翻译：无线信号接收机的检测，消除和跟踪
公开(公告)号：WO2014081601A1
公开(公告)日：2014-05-30
申请号：PCT/US2013/069950
申请日：2013-11-13
申请人： QUALCOMM INCORPORATED
发明人： SUN, Qinfang , HUANG, Chiao-Cheng , CHENG, Hao-Jen
IPC分类号： H04B1/10
CPC分类号： H04L27/00 , H04B1/1027
摘要： A method and device for processing spur components associated with a received wireless signal are disclosed. In one embodiment, the method includes first selecting a sub-band of a spectral band of the received signal. The selected sub-band is scanned, and a detection routine is executed to detect a spur within the scanned sub-band having a peak magnitude above a predetermined threshold. The spur frequency is determined, and the spur may be removed by a cancellation unit based on the determined frequency. The method also includes tracking the frequency of the spur to ensure continued suppression over time and under dynamic conditions.
摘要翻译：公开了一种用于处理与接收的无线信号相关联的支线分量的方法和装置。在一个实施例中，该方法包括首先选择接收信号的频谱带的子带。扫描所选择的子带，并且执行检测程序以检测具有高于预定阈值的峰值幅度的扫描子带内的杂散。确定杂散频率，并且基于所确定的频率，消除单元可以去除杂散。该方法还包括跟踪支线的频率，以确保随时间和动态条件下的持续抑制。

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