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71. 发明申请

US20090074108A1 METHOD AND SYSTEM FOR ADJUSTING THE AMPLITUDE AND PHASE CHARACTERISTICS OF REAL AND IMAGINARY SIGNAL COMPONENTS OF COMPLEX SIGNALS PROCESSED BY AN ANALOG RADIO TRANSMITTER 失效
标题翻译：用于调节由模拟无线电发射机处理的复杂信号的实际和图像信号分量的幅度和相位特性的方法和系统
公开(公告)号：US20090074108A1
公开(公告)日：2009-03-19
申请号：US12275806
申请日：2008-11-21
申请人： Alpaslan Demir , Leonid Kazakevich , Kenneth P. Kearney
发明人： Alpaslan Demir , Leonid Kazakevich , Kenneth P. Kearney
IPC分类号： H04B1/00
CPC分类号： H03C3/406 , H04B1/30
摘要： A method and system for determining amplitude and phase compensation values used to adjust the amplitude and phase characteristics of real and imaginary signal components of complex signals processed by an analog radio transmitter. The compensation values may be determined in response to detecting a significant temperature change in the transmitter. Corresponding amplitude and phase adjustment signals having levels that correspond to the compensation values are provided to respective amplitude and phase imbalance compensation modules to adjust the amplitude and phase characteristics of at least one of the real and imaginary signal components.
摘要翻译：用于确定用于调整由模拟无线电发射机处理的复信号的实信号和虚信号分量的幅度和相位特性的幅度和相位补偿值的方法和系统。可以响应于检测到发射器中的明显的温度变化来确定补偿值。具有对应于补偿值的电平的对应幅度和相位调整信号被提供给相应的幅度和相位不平衡补偿模块，以调整实信号分量和虚信号分量中的至少一个的振幅和相位特性。

72. 发明授权

US07502600B2 Dynamic bias for RF power amplifiers 失效
标题翻译：射频功率放大器的动态偏置
公开(公告)号：US07502600B2
公开(公告)日：2009-03-10
申请号：US11368802
申请日：2006-03-06
申请人： Leonid Kazakevich , Patrick Cabrol
发明人： Leonid Kazakevich , Patrick Cabrol
IPC分类号： H04B1/04
CPC分类号： H03F1/0222 , H03F1/02 , H03F1/0205 , H03F1/0233 , H03F1/0261 , H03F1/0266 , H03F1/30 , H03F3/24 , H03F2200/451 , H03F2200/474 , H03G3/3042 , H03G3/3084 , H04B2001/0416 , H04B2001/045 , H04W52/08 , H04W52/52
摘要： A method for wireless communication that dynamically adjusts RF amplifier operating bias for the subscriber unit's transmitter in response to a power control signal. The invention provides high-efficiency RF power amplification for applications where the available power source is limited. The invention uses a power control signal resident in wireless communication system architectures with a detector and voltage to current converter to arrive at a dynamic amplifier operating bias.
摘要翻译：一种用于无线通信的方法，用于响应于功率控制信号动态地调整用户单元发射机的RF放大器工作偏置。本发明为可用电源有限的应用提供了高效的RF功率放大。本发明使用驻留在具有检测器和电压 - 电流转换器的无线通信系统架构中的功率控制信号来获得动态放大器工作偏置。

73. 发明申请

US20090047914A1 MULTI-MODE RADIO WITH INTERFERENCE CANCELLATION CIRCUIT 有权
标题翻译：具有干扰消除电路的多模无线电
公开(公告)号：US20090047914A1
公开(公告)日：2009-02-19
申请号：US12255746
申请日：2008-10-22
申请人： Timothy A. Axness , Leonid Kazakevich
发明人： Timothy A. Axness , Leonid Kazakevich
IPC分类号： H04B1/44 , H04B1/38
CPC分类号： H04B1/0057 , H04B1/525
摘要： A multi-mode wireless transmit/receive unit (WTRU) includes at least one antenna, first and second communication mode receivers and a first communication mode transmitter. The first and second receivers simultaneously receive signals from the antenna. The first transmitter generates and sends a first type of signal to the antenna while, at the same time, the second receiver receives a second type of signal from the antenna. In a preferred embodiment, the WTRU further includes a vector multiplier configured to reduce or eliminate interference of signals received by the second receiver, the interference being caused by the first transmitter. The vector multiplier adjusts the phase and amplitude of noise (i.e., spurious in-band noise) measured by the second receiver. The WTRU may further include a second communication mode transmitter configured to generate and send a second type of signal to the antenna.
摘要翻译：多模式无线发射/接收单元（WTRU）包括至少一个天线，第一和第二通信模式接收机和第一通信模式发射机。第一和第二接收机同时从天线接收信号。第一发射机产生并向天线发送第一类型的信号，同时第二接收机从天线接收第二类型的信号。在优选实施例中，WTRU还包括被配置为减少或消除由第二接收机接收的信号的干扰的矢量乘法器，该干扰由第一发射机引起。矢量乘法器调节由第二接收机测量的噪声的相位和幅度（即，杂带带内噪声）。 WTRU可以进一步包括第二通信模式发射机，其被配置为产生并向天线发送第二类型的信号。

74. 发明授权

US07469021B2 Method and system for code reuse and capacity enhancement using null steering 有权
标题翻译：使用零转向的代码重用和容量增强的方法和系统
公开(公告)号：US07469021B2
公开(公告)日：2008-12-23
申请号：US11731617
申请日：2007-03-30
申请人： Nadar Bolourchi , Leonid Kazakevich , Rui Yang
发明人： Nadar Bolourchi , Leonid Kazakevich , Rui Yang
IPC分类号： H03K7/06
CPC分类号： H01Q3/2611 , H04B7/0617 , H04B7/0669 , H04J13/0077 , H04W88/08
摘要： The number of users and data capacity of wireless systems are increased by employing apparatus and method for increasing the number of spreading codes available in the system by providing a mechanism to reuse the already allocated spreading code or use the codes that may correlate to those already being used within the same sector/cell. This, in return, provides capacity improvement proportional to the number of added base station (BS) antennas for each cell. An antenna null steering technique for code allocation maintains the cross correlation properties of the codes only for the desired user and to obtain a gain in capacity improvement.
摘要翻译：通过采用用于增加系统中可用的扩展码数目的装置和方法来提高无线系统的用户数量和数据容量，提供一种机制来重用已经分配的扩展码或使用可能与已经分配的扩展码相关的代码在相同的扇区/单元格内使用。这反过来提供了与每个小区的增加的基站（BS）天线的数量成比例的能力提高。用于代码分配的天线零点转向技术仅针对期望的用户维护代码的互相关性质，并获得容量改进的增益。

75. 发明授权

US07400864B2 Method and apparatus for compensating for phase variations caused by activation of an amplifier 失效
标题翻译：用于补偿由放大器的激活引起的相位变化的方法和装置
公开(公告)号：US07400864B2
公开(公告)日：2008-07-15
申请号：US10863977
申请日：2004-06-09
申请人： Leonid Kazakevich , Tanbir Haque , Alpaslan Demir , Robert Troiano
发明人： Leonid Kazakevich , Tanbir Haque , Alpaslan Demir , Robert Troiano
IPC分类号： H04B1/04 , H04K1/02
CPC分类号： H03F3/24 , H03F1/0205 , H03F1/0211 , H03F1/14 , H03F1/305 , H03F2200/336
摘要： A method and apparatus that reduces the amount of constellation rotation due to power amplifier (PA) insertion phase variation during activation (i.e., turn on) of a transmitter. This is accomplished by applying an instantaneous phase rotation during the transmitter turn on at digital baseband to counteract and minimize unwanted phase variations.
摘要翻译：一种减少由于功率放大器（PA）在发射机的激活（即导通）期间插入相位变化引起的星座旋转量的方法和装置。这是通过在发射机在数字基带处接通时施加瞬时相位旋转来实现的，以抵消并最小化不期望的相位变化。

76. 发明授权

US07391814B2 Gain control method and apparatus 失效
标题翻译：增益控制方法及装置
公开(公告)号：US07391814B2
公开(公告)日：2008-06-24
申请号：US11800114
申请日：2007-05-03
申请人： Leonid Kazakevich , Rui Yang
发明人： Leonid Kazakevich , Rui Yang
IPC分类号： H04B14/04
CPC分类号： H03G7/06 , H03G3/001 , H03M1/1235
摘要： An analog/digital gain control device avoid some of the requirements associated with the nature of a closed-loop AGC circuits and which meets the remaining requirements without much difficulty uses an analog to digital conversion method that increases the number of effective ADC bits by compressing the baseband input analog signal using a logarithmic circuit. After the compressed analog signal is converted into a digital signal, a digital anti-log process or look-up table (LUT) is used to expand the digital signal back to the original linear scale. The word size of the output of the anti-log process is larger than the input word size due to the nature of the anti-log function. To reduce the word size of the digital signal an open loop normalization technique can be applied.
摘要翻译：模拟/数字增益控制装置避免了与闭环AGC电路的性质相关的一些要求，并且满足剩余要求，而没有太多困难使用模数转换方法，通过压缩有效ADC位数来增加有效ADC位的数量基带输入模拟信号使用对数电路。在将压缩的模拟信号转换为数字信号之后，使用数字反对数处理或查找表（LUT）将数字信号扩展回原始的线性刻度。由于反日志功能的性质，反日志进程输出的字大小大于输入字大小。为了减小数字信号的字大小，可以应用开环归一化技术。

77. 发明授权

US07379714B2 Method and apparatus for dynamically adjusting a transmitter's impedance 失效
标题翻译：用于动态调整发射机阻抗的方法和装置
公开(公告)号：US07379714B2
公开(公告)日：2008-05-27
申请号：US11022703
申请日：2004-12-27
申请人： Tanbir Haque , Alpaslan Demir , Leonid Kazakevich , Gerard Klahn
发明人： Tanbir Haque , Alpaslan Demir , Leonid Kazakevich , Gerard Klahn
IPC分类号： H04B1/02
CPC分类号： H04B1/0458 , H03F1/0261 , H03F1/56 , H03F3/24 , H03F2200/207 , H03F2200/465 , H03G3/3042 , H04W52/52 , Y02D70/14
摘要： A method and apparatus for dynamically adjusting the impedance between a transmitter's power amplifier (PA) and antenna to efficiently transfer power from the PA to the antenna. The impedance between the PA and the antenna is adjusted based on power level measurements and/or PA direct current (DC) consumption measurements, depending on whether the PA is a linear PA or a switch-mode PA. In another embodiment, a hybrid PA including a first stage linear PA and a second stage switch-mode PA is implemented in a transmitter. The hybrid PA selectively connects the output of the first stage linear PA to one of the input of the second stage switch-mode PA and the output of the hybrid PA, depending on the output power level of the first stage linear PA, the output power level of the hybrid PA, or a requirement indicated by a transmit power control (TPC) command.
摘要翻译：一种用于动态调整发射机功率放大器（PA）和天线之间的阻抗以有效地将功率从PA传输到天线的方法和装置。根据PA是线性PA还是开关模式PA，PA和天线之间的阻抗根据功率电平测量和/或PA直流（DC）消耗测量值进行调整。在另一个实施例中，包括第一级线性PA和第二级开关模式PA的混合PA实现在发射机中。根据第一级线性PA的输出功率电平，混合PA选择性地将第一级线性PA的输出连接到第二级开关模式PA的输入和混合PA的输出之一，输出功率混合PA的电平或由发射功率控制（TPC）指令指示的要求。

78. 发明申请

US20080089397A1 TRANSCEIVER WITH HYBRID ADAPTIVE SELF-INTERFERENCE CANCELLER FOR REMOVING TRANSMITTER GENERATED NOISE TO PREVENT MODEM JAMMING 有权
标题翻译：具有混合自适应自干扰解调器的收发器，用于去除发射机生成的噪声以防止调制解调器
公开(公告)号：US20080089397A1
公开(公告)日：2008-04-17
申请号：US11872101
申请日：2007-10-15
申请人： Kurt Vetter , Leonid Kazakevich
发明人： Kurt Vetter , Leonid Kazakevich
IPC分类号： H04B1/38
CPC分类号： H04B1/525 , H04L27/366
摘要： A self-interference canceller (SIC) is incorporated into a transceiver to reduce or eliminate modem jamming when a transmitter in the transceiver transmits at high power levels. The SIC is configured to receive at a first input a transmitter noise reference signal including a self-interfering signal component generated by the transmitter, to receive at a second input a corrupted signal including the self-interfering signal component and a desired signal component generated by the transmitter, and to output a correction signal that resembles the self-interfering signal component. The correction signal is subtracted from the corrupted signal to generate a processed signal that is input to the modem. The SIC may be disabled when the output power of the transmitter is at a level below a predetermined threshold. The invention may be applied to a multi-radio access technology (RAT) transceiver.
摘要翻译：当收发器中的发射机以高功率电平传输时，自干扰消除器（SIC）被并入到收发器中以减少或消除调制解调器干扰。 SIC被配置为在第一输入处接收包括由发射机产生的自干扰信号分量的发射机噪声参考信号，以在第二输入处接收包括自干扰信号分量的损坏信号和由并且输出类似于自干扰信号分量的校正信号。从损坏的信号中减去校正信号，以产生输入到调制解调器的处理信号。当发射机的输出功率处于低于预定阈值的电平时，SIC可被禁用。本发明可以应用于多无线电接入技术（RAT）收发机。

79. 发明申请

US20080056413A1 ADAPTIVE AGC APPROACH TO MAXIMIZE RECEIVED SIGNAL FIDELITY AND MINIMIZE RECEIVER POWER DISSIPATION 审中-公开
标题翻译：自适应AGC方法最大限度地减少接收到的信号强度和最小化接收机功率消耗
公开(公告)号：US20080056413A1
公开(公告)日：2008-03-06
申请号：US11846816
申请日：2007-08-29
申请人： Alpaslan Demir , Kenneth Kearney , Leonid Kazakevich , Tanbir Haque
发明人： Alpaslan Demir , Kenneth Kearney , Leonid Kazakevich , Tanbir Haque
IPC分类号： H04L27/08
CPC分类号： H04B1/1027 , H03G3/3068 , H03G3/3078 , H04B1/109
摘要： A wireless transmit receive unit (WTRU) includes a receiver and an automatic gain circuit (AGC). The AGC is configured to acquire a desired signal strength, acquire an interferer strength, and set a gain of the receiver based upon the desired signal strength and the interferer strength.
摘要翻译：无线发射接收单元（WTRU）包括接收机和自动增益电路（AGC）。 AGC被配置为基于期望的信号强度和干扰强度来获取期望的信号强度，获取干扰强度并设置接收机的增益。

80. 发明授权

US07336744B2 Digital baseband receiver including a cross-talk compensation module for suppressing interference between real and imaginary signal component paths 失效
标题翻译：数字基带接收机包括用于抑制实信号分量路径与虚信号分量路径之间的干扰的串扰补偿模块
公开(公告)号：US07336744B2
公开(公告)日：2008-02-26
申请号：US10757633
申请日：2004-01-14
申请人： Alpaslan Demir , Leonid Kazakevich , Tanbir Haque
发明人： Alpaslan Demir , Leonid Kazakevich , Tanbir Haque
IPC分类号： H04L1/00
CPC分类号： H04L27/0014 , H04L2027/0016 , H04L2027/0024
摘要： A digital baseband (DBB) radio frequency (RF) receiver used for receiving and processing a wireless communication signal. The DBB RF receiver includes a demodulator, an analog to digital converter (ADC) and a digital cross-talk compensation module. The demodulator outputs analog real and imaginary signal components on real and imaginary signal paths, respectively, in response to receiving the communication signal. The ADC receives the analog real and imaginary signal components and outputs respective digital real and imaginary signal components. The digital cross-talk compensation module receives the digital real and imaginary signal components, estimates the cross-talk interference caused by each of the signal components, and outputs digital real and imaginary cross-talk compensated signal components.
摘要翻译：用于接收和处理无线通信信号的数字基带（DBB）射频（RF）接收机。 DBB RF接收器包括解调器，模数转换器（ADC）和数字串扰补偿模块。解调器响应于接收通信信号而分别在实信号路径和虚信号路径上输出模拟实信号和虚信号分量。 ADC接收模拟实信号和虚信号分量，并输出相应的数字实信号和虚信号分量。数字串扰补偿模块接收数字实信号和虚信号分量，估计由每个信号分量引起的串扰干扰，并输出数字实数和虚数串扰补偿信号分量。

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