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1. 发明申请

WO2012126845A1 COMPENSATION OF A TRANSMITTER DISTORTION 审中-公开
标题翻译：发射机失真的补偿
公开(公告)号：WO2012126845A1
公开(公告)日：2012-09-27
申请号：PCT/EP2012/054692
申请日：2012-03-16
申请人： ST-ERICSSON SA , EPIFANO, Fabio
发明人： EPIFANO, Fabio
IPC分类号： H04B1/30 , H04B1/04 , H04L27/36 , H04L27/38
CPC分类号： H03F1/3247 , H04B1/0475 , H04B1/30 , H04L27/0002 , H04L27/364 , H04L2027/0016
摘要： There is described a method for compensating the phase and gain distortions of a transmitter analog front end affected by a leakage of a local oscillator. The method comprises generating a single complex tone signal in a digital front end, wherein the generation comprises compensating the signal gain and phase with gain and phase offsets. The method comprises feeding the compensated signal into the transmitter analog front end. The method comprises feeding a corresponding output signal of the transmitter analog front end into a nonlinear component, thereby generating an inter-modulation between the complex tone signal and at least one tone signal due to the local oscillator leakage. The method comprises feeding the output of the nonlinear component into a measurement receiver analog front end. The method comprises filtering the output of the measurement receiver analog front end with a band pass filter in order to isolate the inter-modulation, which is indicative of the distortions introduced by the transmitter analog front end. The method comprises measuring the power of the filtered signal. The method comprises updating the gain and phase offsets according to the measured power, by reducing said measured power. The disclosure also relates, in particular, to a digital front end, to an analog system, to a telecommunication device, to a computer program, and to a storage medium.
摘要翻译：描述了一种用于补偿受本地振荡器泄漏影响的发射机模拟前端的相位和增益失真的方法。该方法包括在数字前端生成单个复音信号，其中生成包括利用增益和相位偏移补偿信号增益和相位。该方法包括将经补偿的信号馈送到发射器模拟前端。该方法包括将发射机模拟前端的相应输出信号馈入非线性分量，从而由于局部振荡器泄漏而产生复音调信号与至少一个音调信号之间的互调。该方法包括将非线性分量的输出馈送到测量接收机模拟前端。该方法包括用带通滤波器对测量接收机模拟前端的输出进行滤波，以隔离互调，这表示由发射机模拟前端引入的失真。该方法包括测量滤波信号的功率。该方法包括通过减少所测量的功率来根据测量的功率更新增益和相位偏移。本公开还特别涉及数字前端，模拟系统，电信设备，计算机程序和存储介质。

2. 发明申请

WO2012152929A1 TIME DELAY ESTIMATION 审中-公开
标题翻译：时间延迟估计
公开(公告)号：WO2012152929A1
公开(公告)日：2012-11-15
申请号：PCT/EP2012/058795
申请日：2012-05-11
申请人： ST-ERICSSON SA , EPIFANO, Fabio
发明人： EPIFANO, Fabio
IPC分类号： H04W56/00
CPC分类号： H04W56/00
摘要： An amount of delay between a digital reference signal and a digital derived signal is measured, wherein the derived signal is derived from the reference signal. Measurement involves ascertaining a sign of a slope of the derived signal over a first time interval and producing a set of time-associated reference signs by ascertaining a sign of a slope of the reference signal over each of a plurality of different time intervals leading up to the first time interval. A first set of coincidence results is produced by detecting coincidence between the sign of the slope of the derived signal and each one of the time-associated reference signs in the set of time-associated reference signs. The first set of coincidence results is used alone or in combination with other coincidence results as an indicator of the amount of delay between the reference signal and the derived signal.
摘要翻译：测量数字参考信号和数字导出信号之间的延迟量，其中导出信号是从参考信号导出的。测量包括在第一时间间隔内确定导出信号的斜率的符号，并通过在多个不同的时间间隔中的每一个上确定参考信号的斜率的符号来产生一组时间相关参考符号，第一次间隔。通过检测导出信号的斜率的符号与时间相关参考符号的集合中的每个时间相关联的参考符号之间的一致性来产生第一组重合结果。第一组符合结果单独使用或与其他符合结果一起使用，作为参考信号与导出信号之间的延迟量的指标。

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