公开(公告)号：US20110150127A1

公开(公告)日：2011-06-23

申请号：US13060563

申请日：2009-08-19

申请人： Stefano Calabro ,  Bjoern Jelonnek ,  Gunter Wolff

发明人： Stefano Calabro ,  Bjoern Jelonnek ,  Gunter Wolff

IPC分类号： H04L25/08 ,  H04L27/00

CPC分类号： H04L27/2627 ,  H04L25/03878 ,  H04L25/03885 ,  H04L27/2634 ,  H04L27/2649 ,  H04L27/366 ,  H04L27/367

摘要： It is described a technique to compensate the in-band ripple of filters at the IFFT prior to filtering in the transmitter or, for the receiver, in the FFT after filtering. A transmitter, includes a multiplier for multiplying at least one transmitter coefficient to an input signal of an inverse Fourier transformer which is followed subsequent signal processing chain thereby reducing a ripple on the output of said signal processing chain. A receiver for receiving a transmission signal includes a signal processing chain for processing the transmission signal a multiplier for multiplying at least one receiver coefficient to an output signal of a Fourier transformer to which the output of the signal processing chain is fed to thereby reduce a ripple on said output signal of said Fourier transformer.

摘要翻译： 描述了在滤波之前在发射机或对于接收机进行滤波之前，在IFFT处对滤波器的带内纹波进行补偿的技术。 发射机包括乘法器，用于将至少一个发射机系数与逆傅立叶变换器的输入信号相乘，后者是随后的信号处理链，从而减少所述信号处理链的输出上的纹波。 用于接收传输信号的接收机包括用于处理传输信号的信号处理链，用于将至少一个接收机系数与信号处理链的输出馈送到的傅里叶变换器的输出信号相乘的乘法器，从而减少纹波 在所述傅里叶变换器的所述输出信号上。

公开(公告)号：US20110075575A1

公开(公告)日：2011-03-31

申请号：US12449178

申请日：2008-01-30

申请人： Bernd Baumgartner ,  Bjoern Jelonnek ,  Armin Splett ,  Gunter Wolff

发明人： Bernd Baumgartner ,  Bjoern Jelonnek ,  Armin Splett ,  Gunter Wolff

IPC分类号： H04L12/26

CPC分类号： H04L27/2623

摘要： In sending a transmission signal, in particular a mobile radio signal, to a receiver, the transmission signal is processed according to a modulation coding scheme MCS and subjected to amplitude limited to obtain a specified ratio of maximum to average transmission power PAR. A limit value EVM for an error in the transmission signal is matched to transmission conditions for the transmission signal, according to demand, in such a way that a maximum signal to interface ration is achieved at a receiver.

摘要翻译： 在发送信号，特别是移动无线电信号到接收机时，根据调制编码方案MCS对发送信号进行处理，并受限于幅度，以获得最大到平均发送功率PAR的规定比率。 根据需要，将发送信号中的误差的限制值EVM与发送信号的发送条件进行匹配，使得在接收端实现最大的接口配给信号。

公开(公告)号：US08467746B2

公开(公告)日：2013-06-18

申请号：US12449178

申请日：2008-01-30

申请人： Bernd Baumgartner ,  Bjoern Jelonnek ,  Armin Splett ,  Gunter Wolff

发明人： Bernd Baumgartner ,  Bjoern Jelonnek ,  Armin Splett ,  Gunter Wolff

IPC分类号： H04B1/04

CPC分类号： H04L27/2623

摘要： In sending a transmission signal, in particular a mobile radio signal, to a receiver, the transmission signal is processed according to a modulation coding scheme MCS and subjected to amplitude limited to obtain a specified ratio of maximum to average transmission power PAR. A limit value EVM for an error in the transmission signal is matched to transmission conditions for the transmission signal, according to demand, in such a way that a maximum signal to interface ration is achieved at a receiver.

摘要翻译： 在发送信号，特别是移动无线电信号到接收机时，根据调制编码方案MCS对发送信号进行处理，并受限于幅度，以获得最大到平均发送功率PAR的规定比率。 根据需要，将发送信号中的误差的限制值EVM与发送信号的发送条件进行匹配，使得在接收端实现最大的接口配给信号。

公开(公告)号：US08150324B2

公开(公告)日：2012-04-03

申请号：US11502446

申请日：2006-08-11

申请人： Bjoern Jelonnek ,  Gunter Wolff

发明人： Bjoern Jelonnek ,  Gunter Wolff

IPC分类号： H04B1/00

CPC分类号： H03F1/32 ,  H03F1/3241 ,  H03F1/3258 ,  H04L27/2623

摘要： A method for clipping a baseband input signal filters the complex baseband input signal with a function H1 for forming a filtered first signal. To form a clipped signal in the baseband the filtered first signal is multiplied by a scaling factor. By a signal analysis of the filtered first signal signal overshoots are predicted from which the scaling factor is determined for the baseband clipping. The filter function H1 is calculated as the quotient from a frequency response HS of a transmission filter used one the one hand and from an error frequency response HF on the other hand, with the error frequency response HF being determined in such a way that the error spectrally shaped with HF, which arises for the limitation of the baseband signal, a frequency-dependent tolerance is not exceeded. Subsequently the clipped signal is filtered with the error frequency response HF for forming a filtered second signal.

摘要翻译： 用于削波基带输入信号的方法用功能H1对复数基带输入信号进行滤波，以形成滤波后的第一信号。 为了在基带中形成限幅信号，滤波后的第一信号乘以比例因子。 通过对经过滤波的第一信号信号的信号分析，预测基准限幅的比例因子。 滤波器功能H1被计算为来自一方使用的发送滤波器的频率响应HS和来自错误频率响应HF的商，另一方面，误差频率响应HF被确定为使得错误 用HF限制频谱成形，不会超过频率相关容差。 随后，用用于形成滤波后的第二信号的误差频率响应HF对限幅信号进行滤波。

公开(公告)号：US20100128811A1

公开(公告)日：2010-05-27

申请号：US12312578

申请日：2007-10-24

申请人： Bernd Hassler ,  Bjoern Jelonnek ,  Gunter Wolff

发明人： Bernd Hassler ,  Bjoern Jelonnek ,  Gunter Wolff

IPC分类号： H04L27/26

CPC分类号： H04L27/2618 ,  H04L27/2623

摘要： An apparatus produces a reduction signal for a signal having a plurality of subcarriers. The apparatus has a limiter which is designed to produce a limited signal from the signal having a plurality of subcarriers; -a coefficient ascertainment unit which is designed to determine coefficients for unused subcarriers of the signal having a plurality of subcarriers from the limited signal; and -a signal generator which is designed to generate the reduction signal from the coefficients. The reduction signal is able to be combined with the signal in order to form a reduced signal. The coefficient ascertainment unit is designed to project the limited signals onto a K-th base formula.

摘要翻译： 一种装置产生用于具有多个子载波的信号的缩小信号。 该装置具有限制器，其被设计成从具有多个子载波的信号产生有限的信号; - 系数确定单元，其被设计为从所述有限信号中确定具有多个子载波的信号的未使用子载波的系数; 以及 - 被设计为从所述系数产生所述减小信号的信号发生器。 还原信号能够与信号组合以便形成减小的信号。 系数确定单元被设计成将有限信号投影到第K个基本公式上。

公开(公告)号：US20070036251A1

公开(公告)日：2007-02-15

申请号：US11502446

申请日：2006-08-11

申请人： Bjoern Jelonnek ,  Gunter Wolff

发明人： Bjoern Jelonnek ,  Gunter Wolff

IPC分类号： H04B1/10

CPC分类号： H03F1/32 ,  H03F1/3241 ,  H03F1/3258 ,  H04L27/2623

摘要： A method for clipping a baseband input signal filters the complex baseband input signal with a function H1 for forming a filtered first signal. To form a clipped signal in the baseband the filtered first signal is multiplied by a scaling factor. By a signal analysis of the filtered first signal signal overshoots are predicted from which the scaling factor is determined for the baseband clipping. The filter function H1 is calculated as the quotient from a frequency response HS of a transmission filter used one the one hand and from an error frequency response HF on the other hand, with the error frequency response HF being determined in such a way that the error spectrally shaped with HF, which arises for the limitation of the baseband signal, a frequency-dependent tolerance is not exceeded. Subsequently the clipped signal is filtered with the error frequency response HF for forming a filtered second signal.

摘要翻译： 用于削波基带输入信号的方法用功能H 1 1滤波复基带输入信号，以形成滤波后的第一信号。 为了在基带中形成限幅信号，滤波后的第一信号乘以比例因子。 通过对经过滤波的第一信号信号的信号分析，预测基准限幅的比例因子。 滤波器功能H 1被计算为从一方使用的发送滤波器的频率响应H S S的商和从错误频率响应H F 另一方面，以错误频率响应H> F被确定为以H error error error rally the the the limitation limitation limitation limitation limitation limitation limitation limitation limitation limitation limitation limitation limitation limitation limitation limitation limitation 的基带信号，不超过频率相关容差。 随后，用用于形成滤波后的第二信号的误差频率响应H滤波该限幅信号。

公开(公告)号：US06577259B1

公开(公告)日：2003-06-10

申请号：US10110049

申请日：2002-04-08

申请人： Bjoern Jelonnek

发明人： Bjoern Jelonnek

IPC分类号： H03M300

CPC分类号： H03M7/3022

摘要： A sigma-delta modulator for converting time-discrete samples into corresponding analog signals in, in particular, digital radio communication systems, is characterized by the fact that a first-order sigma-delta modulator is parallelized and a higher-order cascaded sigma-delta modulator is constructed of a number of first-order parallelized structures.

摘要翻译： 用于将时间离散样本转换成特别是数字无线电通信系统中的相应模拟信号的Σ-Δ调制器的特征在于，一阶Σ-Δ调制器被并行并且高阶级联Σ-Δ 调制器由多个一阶并行结构构成。

公开(公告)号：US06255977B1

公开(公告)日：2001-07-03

申请号：US09600845

申请日：2000-09-05

申请人： Bjoern Jelonnek ,  Detlev Nyenhuis

发明人： Bjoern Jelonnek ,  Detlev Nyenhuis

IPC分类号： H03M300

CPC分类号： H03M7/3022 ,  H03M7/3042

摘要： The present invention is directed to a sigma-delta D-A converter (300) with N stages, in which the nth stage, where n=1, 2, 3 . . . N, comprises a first adder (10) which adds a use signal x(k) (12) with an error signal errn(k−1) to an input signal en(k) (14), a quantizer (16) which quantizes the input signal en(k) (14) to an output signal yn(k) (18) according to a predetermined quantization function, and a second adder (20) which adds the input signal en(k) (14) with the inverted output signal yn(k) to xn(k) (21), and supplies it to a delay device (22) which sends the signal xn(k) (21) to the first adder (10) as an error signal errn(k−1) with a delay by a clock period. For this purpose, an amount reducer (24) is provided between the second adder (20) and the delay device (22), which amount reducer (24) leaves the signal xn(k) (21) unchanged when xn(k)=0 and otherwise lowers the amount |xn(k)| of the signal xn(k) (21) by at least a smallest representable numerical unit, wherein the quantization function of the quantizer (16) of the nth stage of the sigma-delta D-A converter (300) is expressed as follows: y n ⁡ ( k ) = { 2 ( 1 - n ) , if ⁢   ⁢ e n ⁡ ( k ) > 2 - n 0 , if ⁢   ⁢ abs ⁢   ⁢ ( e n ⁡ ( k ) ) ≤ 2 - n - 2 ( 1 - n ) , if ⁢   ⁢ e n ⁡ ( k )

摘要翻译： 本发明涉及一种具有N级的Σ-ΔD-A转换器（300），其中n = 1,2,3。 。 。 N包括将使用信号x（k）（12）与误差信号errn（k-1）相加到输入信号en（k）（14）的第一加法器（10），量化器（16） 根据预定量化函数将输入信号en（k）（14）输出到输出信号yn（k）（18）;以及第二加法器（20），其将输入信号en（k）（14）与反相 输出信号yn（k）到xn（k）（21），并将其提供给向第一加法器（10）发送信号xn（k）（21）的延迟装置22作为误差信号errn（k -1）延迟一个时钟周期。 为此，在第二加法器（20）和延迟装置（22）之间设置数量减少器（24），当xn（k）= 2时，减法器（24）离开信号xn（k）（21） 0，否则降低量| xn（k）| 信号xn（k）（21）的至少最小可表示数值单位，其中Σ-ΔD-A转换器（300）的第n级的量化器（16）的量化函数表示如下：

公开(公告)号：US09362869B2

公开(公告)日：2016-06-07

申请号：US14232071

申请日：2011-07-13

申请人： Frank Dechen ,  Bjoern Jelonnek ,  Michael Weber

发明人： Frank Dechen ,  Bjoern Jelonnek ,  Michael Weber

IPC分类号： H03F1/32 ,  H03F1/26 ,  H03F1/30 ,  H03F3/195 ,  H03F3/24 ,  H04L27/36

CPC分类号： H03F1/3247 ,  H03F1/30 ,  H03F1/3241 ,  H03F1/3258 ,  H03F1/3282 ,  H03F3/195 ,  H03F3/24 ,  H03F2200/336 ,  H03F2200/447 ,  H03F2200/451 ,  H03F2201/3209 ,  H03F2201/3212 ,  H03F2201/3224 ,  H03F2201/3227 ,  H03F2201/3233 ,  H04L27/368

摘要： A method, apparatus, and computer program for modeling mathematically an effect of a plurality of factors on signal distortion caused by a non-linear amplifier are provided. First, there is computed a global model which incorporates a combined effect of the plurality of factors on signal distortion caused by the non-linear amplifier. Before applying the pre-distorted transmission signal to the non-linear amplifier, a transmission signal is pre-distorted with coefficients derived from the global model thus compensating for the signal distortion caused by the non-linear amplifier.

摘要翻译： 提供了一种用于在数学上建模多个因素对由非线性放大器引起的信号失真的影响的方法，装置和计算机程序。 首先，计算出一个全局模型，其中包含多个因素对由非线性放大器引起的信号失真的组合影响。 在将预失真的发送信号应用于非线性放大器之前，利用从全局模型导出的系数对发送信号进行预失真，从而补偿由非线性放大器引起的信号失真。

公开(公告)号：US08467463B2

公开(公告)日：2013-06-18

申请号：US12312578

申请日：2007-10-24

申请人： Bernd Hassler ,  Bjoern Jelonnek ,  Gunter Wolf

发明人： Bernd Hassler ,  Bjoern Jelonnek ,  Gunter Wolf

IPC分类号： H04L27/28

CPC分类号： H04L27/2618 ,  H04L27/2623

摘要： An apparatus produces a reduction signal for a signal having a plurality of subcarriers. The apparatus has a limiter which is designed to produce a limited signal from the signal having a plurality of subcarriers;—a coefficient ascertainment unit which is designed to determine coefficients for unused subcarriers of the signal having a plurality of subcarriers from the limited signal; and—a signal generator which is designed to generate the reduction signal from the coefficients. The reduction signal is able to be combined with the signal in order to form a reduced signal. The coefficient ascertainment unit is designed to project the limited signals onto a K-th base formula.

摘要翻译： 一种装置产生用于具有多个子载波的信号的缩小信号。 该设备具有限制器，其被设计为从具有多个子载波的信号产生有限信号; - 系数确定单元，被设计为从有限信号中确定具有多个子载波的信号的未使用子载波的系数; 以及被设计为从所述系数产生所述减小信号的信号发生器。 还原信号能够与信号组合以便形成减小的信号。 系数确定单元被设计成将有限信号投影到第K个基本公式上。