公开(公告)号：US20070117522A1

公开(公告)日：2007-05-24

申请号：US11654766

申请日：2007-01-17

申请人： Timothy Axness ,  Leonid Kazakevich

发明人： Timothy Axness ,  Leonid Kazakevich

IPC分类号： H04B1/44

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。

公开(公告)号：US20070085718A1

公开(公告)日：2007-04-19

申请号：US11562802

申请日：2006-11-22

申请人： Timothy Axness ,  Leonid Kazakevich

发明人： Timothy Axness ,  Leonid Kazakevich

IPC分类号： H03M3/00

CPC分类号： H04L5/06 ,  H03G3/3052 ,  H04B1/30 ,  H04L27/2608 ,  H04L27/3845

摘要： A method for a radio communications device such as a receiver, transmitter or transceiver provides direct conversion of quadrature signals between a radio frequency signal and a plurality of resolved channels. The method provides block processing of multiple RF carriers in a wireless communication system using a direct conversion transmitter/receiver and baseband signal processing.

摘要翻译： 诸如接收机，发射机或收发机之类的无线电通信设备的方法提供了在射频信号和多个解决信道之间的正交信号的直接转换。 该方法使用直接转换发射机/接收机和基带信号处理在无线通信系统中提供多个RF载波的块处理。

公开(公告)号：US20050020297A1

公开(公告)日：2005-01-27

申请号：US10852640

申请日：2004-05-24

申请人： Timothy Axness ,  Leonid Kazakevich

发明人： Timothy Axness ,  Leonid Kazakevich

IPC分类号： H04B1/00 ,  H04B1/10 ,  H04B1/44 ,  H04Q20060101

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。

公开(公告)号：US07869527B2

公开(公告)日：2011-01-11

申请号：US11872101

申请日：2007-10-15

申请人： Kurt G. Vetter ,  Leonid Kazakevich

发明人： Kurt G. Vetter ,  Leonid Kazakevich

IPC分类号： H04L27/00

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。

公开(公告)号：US20100226330A1

公开(公告)日：2010-09-09

申请号：US12716514

申请日：2010-03-03

申请人： Tanbir Haque ,  Leonid Kazakevich ,  Scott M. Newton

发明人： Tanbir Haque ,  Leonid Kazakevich ,  Scott M. Newton

IPC分类号： H04W72/04

CPC分类号： H04W72/085 ,  H03M1/1215 ,  H04B1/28

摘要： A method and apparatus for dynamic resource allocation of an RF sampling system based on a signal quality measurement determined by generating a plurality of time-interleaved samples from a received radio frequency (RF) signal and combining the plurality of time-interleaved samples to generate the signal quality.

摘要翻译： 一种用于基于通过从所接收的射频（RF）信号生成多个时间交织采样而确定的信号质量测量的RF采样系统的动态资源分配的方法和装置，并且组合所述多个时间交织样本以产生 信号质量。

公开(公告)号：US07630709B2

公开(公告)日：2009-12-08

申请号：US11433958

申请日：2006-05-15

申请人： Kamel M. Shaheen ,  Leonid Kazakevich

发明人： Kamel M. Shaheen ,  Leonid Kazakevich

IPC分类号： H04W4/00

CPC分类号： H04W92/02

摘要： A format converter for use with a universal mobile telecommunications system (UMTS) having a transceiver, a wireless local area network (WLAN) having an access point (AP) and a wireless terminal, for providing access to the UMTS by the terminal. The format converter comprises a WLAN transceiver for sending and receiving messages to and from the AP; a UMTS transceiver for sending and receiving messages to and from the transceiver in the UMTS; and a translator for translating WLAN messages to UMTS format and UMTS messages to WLAN format.

摘要翻译： 一种格式转换器，用于具有收发器的通用移动通信系统（UMTS），具有接入点（AP）的无线局域网（WLAN）和无线终端，用于通过终端提供对UMTS的接入。 格式转换器包括用于向和从AP发送和接收消息的WLAN收发器; UMTS收发器，用于向UMTS中的收发信机发送和接收消息; 以及用于将WLAN消息转换为UMTS格式和UMTS消息到WLAN格式的翻译器。

公开(公告)号：US20090141788A1

公开(公告)日：2009-06-04

申请号：US12352303

申请日：2009-01-12

申请人： Fatih M. Ozluturk ,  Stephen G. Dick ,  Leonid Kazakevich

发明人： Fatih M. Ozluturk ,  Stephen G. Dick ,  Leonid Kazakevich

IPC分类号： H04L27/01

CPC分类号： H04L27/0014 ,  H04L27/22 ,  H04L2027/0016 ,  H04L2027/0024

摘要： A system for balancing a signal having I and Q components includes means for cross correlating the I and Q components to produce a cross correlation product; means for adjusting the gain of each I and Q signal component in accordance with said cross correlation product; and means for adding one component with the adjustable gain of the other component to produce a phase-balanced signal.

摘要翻译： 用于平衡具有I和Q分量的信号的系统包括用于互相关联I和Q分量以产生互相关乘积的装置; 用于根据所述互相关乘积调整每个I和Q信号分量的增益的装置; 以及用于添加具有另一部件的可调增益的一个分量以产生相位平衡信号的装置。

公开(公告)号：US07460614B2

公开(公告)日：2008-12-02

申请号：US10740047

申请日：2003-12-18

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 ,  H04L27/00 ,  H04L27/36

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。

公开(公告)号：US20080214125A1

公开(公告)日：2008-09-04

申请号：US12121092

申请日：2008-05-15

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： H04B1/40 ,  H04B1/04

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。

公开(公告)号：US20070211821A1

公开(公告)日：2007-09-13

申请号：US11685003

申请日：2007-03-12

申请人： Tanbir Haque ,  Leonid Kazakevich

发明人： Tanbir Haque ,  Leonid Kazakevich

IPC分类号： H04L25/49 ,  H04L27/20

CPC分类号： H04L27/361 ,  H03F3/217 ,  H03F3/24 ,  H03F2200/331 ,  H03F2200/336 ,  H04B1/0014 ,  H04B1/0475 ,  H04B2001/0408 ,  H04L27/362 ,  H04L27/364

摘要： In a digital Cartesian modulation transmitter, an encoder generates 1-bit logic signals from in-phase and quadrature signals. A single bit digital modulator multiplexes the 1-bit logic signals for Cartesian I/Q modulation. A digital upconverter (DUC) upconverts the multiplexed 1-bit logic signal. A digital power amplifier (DPA) generates a radio frequency (RF) signal based on the upconverted signal. In a digital polar modulation transmitter, an encoder converts a magnitude signal to a first 1-bit logic signal. A digital phase modulator modulates a carrier using a phase signal to generate a second 1-bit logic signal. A DUC upconverts the second 1-bit logic signal. A first-in first-out (FIFO) memory stores the first 1-bit logic signal. A combiner combines angle information contained in the second 1-bit logic signal with magnitude information contained in the first 1-bit logic signal stored in the FIFO memory. A DPA generates an RF signal based on the combined signal.

摘要翻译： 在数字笛卡尔调制发射机中，编码器从同相和正交信号中产生1位逻辑信号。 单位数字调制器将1位逻辑信号复用为笛卡尔I / Q调制。 数字上变频器（DUC）将多路复用的1位逻辑信号上变频。 数字功率放大器（DPA）基于上变频信号产生射频（RF）信号。 在数字极化调制发射机中，编码器将幅度信号转换为第一个1位逻辑信号。 数字相位调制器使用相位信号来调制载波以产生第二个1位逻辑信号。 DUC将第二个1位逻辑信号上变频。 先进先出（FIFO）存储器存储第一个1位逻辑信号。 组合器将包含在第二1位逻辑信号中的角度信息与存储在FIFO存储器中的第一1位逻辑信号中包含的幅度信息相结合。 DPA根据组合信号产生RF信号。