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公开(公告)号：US06741662B1
公开(公告)日：2004-05-25
申请号：US09550855
申请日：2000-04-17
申请人： Amir Francos , Ilan Barak , Daniel Yellin , Avner Dor
发明人： Amir Francos , Ilan Barak , Daniel Yellin , Avner Dor
IPC分类号： H03F126
CPC分类号： H03F1/3247 , H04L27/368
摘要： A method of generating values of a predistortion look up table for linearization of a transmitter. The method includes accumulating a plurality of pairs of values representing input and output values of samples entering one or more non-linear elements of the transmitter, fitting the pairs of values into a parameteric model of at least one of the one or more non-linear elements, so as to determine values for the parameters of the parameteric model, and generating values of the look up table responsive to the fitted parameteric model.
摘要翻译： 产生用于发送机线性化的预失真查询表的值的方法。 该方法包括累积表示进入发射机的一个或多个非线性元件的样本的输入和输出值的多对值，将该对值拟合成一个或多个非线性的至少一个的参数模型 元素，以便确定参数模型的参数的值，以及响应于拟合的参数模型生成查找表的值。
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2.发明授权公开(公告)号：US09338791B2
公开(公告)日：2016-05-10
申请号：US12046220
申请日：2008-03-11
申请人： Dan Stopler , Amir Francos
发明人： Dan Stopler , Amir Francos
CPC分类号： H04W72/1215 , H04L5/003 , H04W88/06 , H04W88/10
摘要： There is provided a method and apparatus for allocating transmission resources in a wireless network in which some of the terminals communicate with the base station by exchanging communication frames that are compatible with a first communication protocol while other terminals receive communications from the base station that are compatible with a second communication protocol by using non-standardized communication frames or communication frames that are compatible with another standardized protocol. The base station transmits a plurality of frames, some of which are compatible with the first communication protocol while others—with the second communication protocol. The terminals that are operative to receive frames of the second communication protocol are capable of decoding frames that are compatible with both communication protocols, whereas terminals that are operative to receive frames of the first communication protocol are capable of decoding only standardized communication frames of the first communication protocol.
摘要翻译： 提供了一种用于在无线网络中分配传输资源的方法和装置，其中一些终端通过交换与第一通信协议兼容的通信帧来与基站进行通信，而其他终端从基站接收与之兼容的通信 通过使用与另一标准化协议兼容的非标准化通信帧或通信帧的第二通信协议。 基站发送多个帧，其中一些帧与第一通信协议兼容，而另一些帧具有第二通信协议。 可操作以接收第二通信协议的帧的终端能够对与两个通信协议兼容的帧进行解码，而可操作以接收第一通信协议的帧的终端能够仅解码第一通信协议的标准化通信帧 通讯协议。
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公开(公告)号：US20100157925A1
公开(公告)日：2010-06-24
申请号：US12654088
申请日：2009-12-10
申请人： Amir Francos
发明人： Amir Francos
CPC分类号： H04B7/0413 , H04B7/0689
摘要： A method for transmission mode selection in a MIMO radio system between a spatial diversity (A-matrix) mode and a spatial multiplexing (B-matrix) mode comprises: obtaining a channel condition number; if the channel condition number is above a selected threshold, and a signal to interference plus noise ratio exceeds a predetermined threshold then selecting spatial multiplexing; and otherwise selecting spatial diversity.
摘要翻译： 在空间分集（A矩阵）模式和空间复用（B矩阵）模式之间的MIMO无线电系统中的传输模式选择的方法包括：获得信道条件数; 如果信道条件数高于选择的阈值，并且信号与干扰加噪声比超过预定阈值，则选择空间复用; 否则选择空间分集。
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公开(公告)号：US20100087227A1
公开(公告)日：2010-04-08
申请号：US12244014
申请日：2008-10-02
申请人： Amir FRANCOS , Anatoly Sloushch , David Shechter
发明人： Amir FRANCOS , Anatoly Sloushch , David Shechter
CPC分类号： H03F1/3247 , H03F3/195 , H03F3/24 , H03F2200/204 , H03F2200/451 , H04B7/06 , H04B17/12
摘要： A multi-transmitter base station for wireless digital communication, having beam forming and digital pre-distortion capabilities, including a shared feedback unit for providing feedback of outgoing Radio Frequency (RF) signals for calibrating a plurality of antennas and for adapting the digital pre-distortion. Related apparatus and methods are also described.
摘要翻译： 一种用于无线数字通信的多发射机基站，具有波束形成和数字预失真能力，包括共享反馈单元，用于提供用于校准多个天线的输出射频（RF）信号的反馈并用于调整数字预失真能力， 失真。 还描述了相关装置和方法。
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公开(公告)号：US20050025255A1
公开(公告)日：2005-02-03
申请号：US10924996
申请日：2004-08-25
申请人： Amir Francos , Ilan Barak , Daniel Yellin
发明人： Amir Francos , Ilan Barak , Daniel Yellin
CPC分类号： H04L25/063 , H03C3/40
摘要： A transmitter has a transmission path with an IQ modulator and a feedback path with an IQ demodulator. DC offset is determined by estimating a DC offset of the IQ demodulator, adaptively estimating a DC offset of the IQ modulator at least partially from the demodulator DC offset, subtracting the estimated demodulator DC offset from the feedback path and subtracting the estimated modulator DC offset from the transmission path.
摘要翻译： 发射机具有与IQ调制器的传输路径和具有IQ解调器的反馈路径。 通过估计IQ解调器的DC偏移来确定DC偏移，至少部分地从解调器DC偏移来估计IQ调制器的DC偏移，从反馈路径中减去估计的解调器DC偏移并从中减去估计的调制器DC偏移 传输路径。
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公开(公告)号：US08488536B2
公开(公告)日：2013-07-16
申请号：US12654088
申请日：2009-12-10
申请人： Amir Francos
发明人： Amir Francos
CPC分类号： H04B7/0413 , H04B7/0689
摘要： A method for transmission mode selection in a MIMO radio system between a spatial diversity (A-matrix) mode and a spatial multiplexing (B-matrix) mode comprises: obtaining a channel condition number; if the channel condition number is above a selected threshold, and a signal to interference plus noise ratio exceeds a predetermined threshold then selecting spatial multiplexing; and otherwise selecting spatial diversity.
摘要翻译： 在空间分集（A矩阵）模式和空间复用（B矩阵）模式之间的MIMO无线电系统中的传输模式选择的方法包括：获得信道条件数; 如果信道条件数高于选择的阈值，并且信号与干扰加噪声比超过预定阈值，则选择空间复用; 否则选择空间分集。
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7.发明申请公开(公告)号：US20090232092A1
公开(公告)日：2009-09-17
申请号：US12046220
申请日：2008-03-11
申请人： Dan Stopler , Amir Francos
发明人： Dan Stopler , Amir Francos
IPC分类号： H04Q7/00
CPC分类号： H04W72/1215 , H04L5/003 , H04W88/06 , H04W88/10
摘要： There is provided a method and apparatus for allocating transmission resources in a wireless network in which some of the terminals communicate with the base station by exchanging communication frames that are compatible with a first communication protocol while other terminals receive communications from the base station that are compatible with a second communication protocol by using non-standardized communication frames or communication frames that are compatible with another standardized protocol. The base station transmits a plurality of frames, some of which are compatible with the first communication protocol while others—with the second communication protocol. The terminals that are operative to receive frames of the second communication protocol are capable of decoding frames that are compatible with both communication protocols, whereas terminals that are operative to receive frames of the first communication protocol are capable of decoding only standardized communication frames of the first communication protocol.
摘要翻译： 提供了一种用于在无线网络中分配传输资源的方法和装置，其中一些终端通过交换与第一通信协议兼容的通信帧来与基站进行通信，而其他终端从基站接收与之兼容的通信 通过使用与另一标准化协议兼容的非标准化通信帧或通信帧的第二通信协议。 基站发送多个帧，其中一些帧与第一通信协议兼容，而另一些帧具有第二通信协议。 可操作以接收第二通信协议的帧的终端能够对与两个通信协议兼容的帧进行解码，而可操作以接收第一通信协议的帧的终端能够仅解码第一通信协议的标准化通信帧 通讯协议。
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公开(公告)号：US06898252B1
公开(公告)日：2005-05-24
申请号：US09621388
申请日：2000-07-21
申请人： Daniel Yellin , Amir Francos
发明人： Daniel Yellin , Amir Francos
CPC分类号： H04L27/364 , H04L27/368 , H04L27/3863
摘要： A method of assigning values to parameters for IQ mismatch cancellation. The method includes providing values to a processing path of a communication device, passing the provided values through an IQ modulator, at least one non-linear element and an IQ demodulator, to produce distorted values, and estimating at least one parameter for cancellation of IQ mismatch effects of the communication device responsive to the provided values and to the distorted values.
摘要翻译： 为IQ失配消除参数分配值的方法。 该方法包括向通信设备的处理路径提供值，使所提供的值通过IQ调制器，至少一个非线性元件和IQ解调器，以产生失真值，以及估计用于消除IQ的至少一个参数 响应于所提供的值和失真值的通信设备的不匹配效应。
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公开(公告)号：US07471935B2
公开(公告)日：2008-12-30
申请号：US10857231
申请日：2004-06-01
申请人： Ilan Barak , Amir Francos , Dimitry Petrov
发明人： Ilan Barak , Amir Francos , Dimitry Petrov
CPC分类号： H04W52/367 , H03G3/3042 , H04W52/146 , H04W52/52
摘要： A source binary code that complies with a source architecture is translated to a target binary code that complies with a target architecture. The target binary code includes a first target portion translated from a respective source portion of the source binary code. During execution of the target binary code on a processor that complies with a target architecture, it is determined whether to retranslate the source portion to produce a second target portion that is more optimized to the target architecture than the first target portion or to retranslate the source portion to produce a third target portion that is more optimized to the target architecture than the second target portion.
摘要翻译： 符合源架构的源二进制代码被转换为符合目标架构的目标二进制代码。 目标二进制码包括从源二进制码的相应源部分翻译的第一目标部分。 在符合目标架构的处理器上执行目标二进制代码期间，确定是否重新传输源部分以产生比目标架构比第一目标部分更优化的第二目标部分或者重新传输源 以产生比目标结构比第二目标部分更优化的第三目标部分。
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公开(公告)号：US07003051B2
公开(公告)日：2006-02-21
申请号：US09981631
申请日：2001-10-16
申请人： Amir Francos , Daniel Yellin , Eran Gureshnik
发明人： Amir Francos , Daniel Yellin , Eran Gureshnik
IPC分类号： H04K25/49
CPC分类号： H04L27/368 , H03F1/3241 , H03F1/3294 , H04B2001/0425
摘要： In an embodiment, a transmitter section for a mobile device includes a predistorter for predistorting an input signal input to a modulation section. Predistortion values may be selected from a look-up table in response to a fed back signal from the output of the modulation section. A delay between the input signal and the fed back signal may be determined in two stages: a coarse delay estimation for determining a whole number of sample cycles, and a fine delay estimation for determining a fraction of a sample cycle to be added to the coarse delay estimation value.
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