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1.发明公开DIGITAL PREDISTORTION PROCESSING METHOD AND SYSTEM 审中-公开VERFAHREN UND系统ZUR VERARBEITUNG EINER DIGITALEN VORVERZERRUNG
公开(公告)号：EP2947833A1
公开(公告)日：2015-11-25
申请号：EP13871392.0
申请日：2013-12-25
发明人： XIONG, Jun , ZHANG, Yongli , XUE, Bin
IPC分类号： H04L25/49
CPC分类号： H04B1/0475 , H03F1/3247 , H04B1/62 , H04B2001/0433 , H04L25/49 , H04L27/368
摘要： The present invention discloses a digital predistortion processing method and system. The method includes: extracting a predistortion parameter corresponding to an input signal from a predistortion coefficient parameter list to perform predistortion processing on the input signal to obtain a forward sending signal; performing power amplification processing on the forward sending signal to obtain an output signal; collecting the output signal to obtain a feedback signal; collecting the forward sending signal after delaying for a preset number of sampling points to obtain a reference signal; performing synchronous correlation calculation on the reference signal and the feedback signal to calibrate the feedback signal; training a predistortion coefficient according to the reference signal and the calibrated feedback signal; and forming a predistortion coefficient parameter list according to the predistortion coefficient and the amplitude of the input signal. In this embodiment, the transmission signal is delayed for a preset number of sampling points to greatly perfect the radio frequency index ACPR.
摘要翻译： 本发明公开了一种数字预失真处理方法和系统。 该方法包括：从预失真系数参数表中提取与输入信号对应的预失真参数，对输入信号进行预失真处理，得到前向发送信号; 对前向发送信号执行功率放大处理以获得输出信号; 收集输出信号以获得反馈信号; 在延迟预设数量的采样点之后收集正向发送信号以获得参考信号; 对参考信号和反馈信号进行同步相关计算，校准反馈信号; 根据参考信号和校准的反馈信号训练预失真系数; 根据输入信号的预失真系数和振幅，形成预失真系数参数表。 在本实施例中，传输信号被延迟预设数量的采样点，以极大地完善射频指数ACPR。
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公开(公告)号：EP3190727B1
公开(公告)日：2019-12-11
申请号：EP15838071.7
申请日：2015-08-27
发明人： WANG, Shihua , DUAN, Tao , XUE, Bin , WANG, Jieli
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公开(公告)号：EP2947833B1
公开(公告)日：2019-02-06
申请号：EP13871392.0
申请日：2013-12-25
发明人： XIONG, Jun , ZHANG, Yongli , XUE, Bin
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公开(公告)号：EP3203697B1
公开(公告)日：2020-11-04
申请号：EP15847714.1
申请日：2015-09-21
发明人： XIONG, Jun , SUN, Huarong , XUE, Bin , WANG, Jieli , CHEN, Jintao , ZHANG, Pengpeng , ZHANG, Bin
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公开(公告)号：EP3203697A1
公开(公告)日：2017-08-09
申请号：EP15847714.1
申请日：2015-09-21
发明人： XIONG, Jun , SUN, Huarong , XUE, Bin , WANG, Jieli , CHEN, Jintao , ZHANG, Pengpeng , ZHANG, Bin
CPC分类号： H04L27/26 , H04L5/001 , H04L5/023 , H04L27/183 , H04L27/2604 , H04L27/2621 , H04L27/2623
摘要： Disclosed are a multi-carrier superposition method and device. First, input carrier signals are superposed, and gain reduction processing is conducted during the superposition process, and then CFR processing and increase processing are conducted on the superposed carrier signals. Thus, under the circumstance of multi-carrier superposition, it can be effectively ensured that signals cannot overflow, and meanwhile the requirement for precision of a system during processing is met.
摘要翻译： 公开了一种多载波叠加方法和装置。 首先，叠加输入载波信号，在叠加处理期间进行增益降低处理，然后对叠加的载波信号进行CFR处理和增加处理。 因此，在多载波叠加的情况下，可以有效保证信号不会溢出，同时满足加工过程中对系统精度的要求。
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公开(公告)号：EP3190727A1
公开(公告)日：2017-07-12
申请号：EP15838071.7
申请日：2015-08-27
发明人： WANG, Shihua , DUAN, Tao , XUE, Bin , WANG, Jieli
IPC分类号： H04B17/00
摘要： Disclosed are a method and device for detecting a standing-wave ratio, which are used for realizing quick and accurate detection of the standing-wave ratio by only using a downlink service signal transmitted by a TD-LTE base station system, thereby preventing a special training sequence from causing additional interference to the base station system. The method comprises: capturing output power detection data (OPD) of a service signal transmitted by the base station system and reflection power detection data (RPD) of a device to be detected in a base station; within a first preset bandwidth range, respectively extracting feedback signals of the OPD and feedback signals of the RPD within a plurality of periods of time according to a preset data length; determining spectrum characteristics of the feedback signals of the OPD and spectrum characteristics of the feedback signals of the RPD respectively corresponding to each period of time, and determining the reflection coefficient of the base station system according to the spectrum characteristics of the feedback signals of the OPD and the spectrum characteristics of the feedback signals of the RPD respectively corresponding to each period of time; and determining the standing-wave ratio of the base station system within the first preset bandwidth range according to the reflection coefficient of the base station system.
摘要翻译： 公开了一种用于检测驻波比的方法和装置，其仅用于通过仅使用由TD-LTE基站系统发送的下行链路服务信号来实现快速而准确地检测驻波比，从而防止特殊 训练序列对基站系统造成额外的干扰。 该方法包括：捕获基站系统发送的业务信号的输出功率检测数据（OPD）和基站中待检测设备的反射功率检测数据（RPD） 在第一预设带宽范围内，根据预设的数据长度分别在多个时间段内提取所述OPD的反馈信号和所述RPD的反馈信号; 确定所述OPD的反馈信号的频谱特性以及所述RPD的反馈信号的频谱特性，并根据所述OPD的反馈信号的频谱特性确定所述基站系统的反射系数 以及分别对应于每个时间段的RPD的反馈信号的频谱特性; 根据所述基站系统的反射系数，确定所述基站系统在所述第一预设带宽范围内的驻波比。
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