公开(公告)号：US20060109893A1

公开(公告)日：2006-05-25

申请号：US10998122

申请日：2004-11-24

申请人： Hsin-Hung Chen ,  Jiunn-Tsair Chen ,  Young-Kai Chen ,  Po-Chiun Huang ,  Kun-Yii Tu

发明人： Hsin-Hung Chen ,  Jiunn-Tsair Chen ,  Young-Kai Chen ,  Po-Chiun Huang ,  Kun-Yii Tu

IPC分类号： H04L5/16

CPC分类号： H04L27/364 ,  H04B1/30 ,  H04L27/3863 ,  H04L2027/0016 ,  H04L2027/0022

摘要： A transceiver includes a transmitter, a receiver, and an electrical feedback line. The transmitter has a quadrature-modulator and is configurable to compensate inphase/quadrature phase imbalances produced by hardware of the transmitter. The quadrature-modulator is configured to quadrature-modulate a carrier wave. The receiver has a quadrature-demodulator and is configurable to compensate for inphase/quadrature phase imbalances produced by hardware in the receiver. The quadrature-demodulator is configured to demodulate a quadrature-demodulated carrier. The electrical feedback line connects an output of the transmitter to an input of the receiver.

摘要翻译： 收发器包括发射器，接收器和电反馈线。 发射机具有正交调制器，可配置为补偿发射机硬件产生的同相/正交相位不平衡。 正交调制器被配置为对载波进行正交调制。 接收机具有正交解调器，可配置为补偿接收机中由硬件产生的同相/正交相位不平衡。 正交解调器被配置为解调正交解调载波。 电反馈线将发射机的输出连接到接收机的输入。

公开(公告)号：US6154093A

公开(公告)日：2000-11-28

申请号：US53407

申请日：1998-04-01

申请人： Jiunn-Tsair Chen ,  Young-Kai Chen ,  Huan-Shang Tsai

发明人： Jiunn-Tsair Chen ,  Young-Kai Chen ,  Huan-Shang Tsai

IPC分类号： H03F1/32 ,  H03F1/00

CPC分类号： H03F1/3229

摘要： A feedforward linearizer for amplifying an input signal comprises a signal cancellation circuit which has a first branch and a second branch. A first amplifier provided in the first branch receives the input signal intended to be amplified and generates an output signal received by a signal cancellation vector modulator. A signal cancellation adder receives the signal generated by the signal cancellation vector modulator and the input signal via the second branch and provides an error signal. The feedforward linearizer also comprises an error cancellation circuit that has a first branch and a second branch. An error cancellation adder in the first branch receives the output signal provided by the first amplifier and generates the output signal of the linearizer. An error cancellation vector modulator in the second branch receives an error signal provided by the signal cancellation adder and provides an error adjusted signal to a second auxiliary amplifier. The second auxiliary amplifier provides an input signal to the error cancellation adder. A digital signal processor provides a signal cancellation adjustment signal, .alpha., to the signal cancellation vector modulator and an error cancellation adjustment signal, .beta., to the error cancellation vector modulator respectively, such that the output signal of the signal cancellation adder is a signal that substantially represents the error components provided by the first amplifier, and the output signal of the error cancellation adder is an amplified version of the input signal, with substantially no internmodulation components.

摘要翻译： 用于放大输入信号的前馈线性化电路包括具有第一分支和第二分支的信号消除电路。 设置在第一分支中的第一放大器接收要被放大的输入信号，并产生由信号消除矢量调制器接收的输出信号。 信号消除加法器通过第二分支器接收由信号消除矢量调制器产生的信号和输入信号，并提供误差信号。 前馈线性化电路还包括具有第一分支和第二分支的误差消除电路。 第一分支中的误差消除加法器接收由第一放大器提供的输出信号，并产生线性化器的输出信号。 第二分支中的误差消除矢量调制器接收由信号消除加法器提供的误差信号，并向第二辅助放大器提供误差调整信号。 第二辅助放大器向误差消除加法器提供输入信号。 数字信号处理器分别向信号消除矢量调制器提供信号消除调整信号α，并将误差消除调整信号β分别提供给误差消除矢量调制器，使得信号消除加法器的输出信号是 基本上表示由第一放大器提供的误差分量，误差消除加法器的输出信号是输入信号的放大版本，基本上没有内部调制分量。

公开(公告)号：US06172565B2

公开(公告)日：2001-01-09

申请号：US09041604

申请日：1998-03-13

申请人： Jiunn-Tsair Chen ,  Young-Kai Chen ,  Huan-Shang Tsai

发明人： Jiunn-Tsair Chen ,  Young-Kai Chen ,  Huan-Shang Tsai

IPC分类号： H03F126

CPC分类号： H03F1/3229

摘要： A feedforward linearizer includes a signal cancellation circuit and an error cancellation circuit. The signal cancellation circuit includes a tap delay line, that delay the input signal by a predetermined time delay so as to provide several delayed versions of the input signal. Each delayed version of the input signal is weighted by a tap coefficient. The weighted signals are then added together and fed to the power amplifier. The tap coefficients are derived such that the signals traveling through the upper and lower branch of the signal cancellation loop are aligned and that the output signal of the power amplifier is equalized.

摘要翻译： 前馈线性化电路包括信号消除电路和误差消除电路。 信号消除电路包括抽头延迟线，其将输入信号延迟预定的时间延迟，以便提供输入信号的几个延迟版本。 每个延迟版本的输入信号由抽头系数加权。 然后将加权信号相加并馈送到功率放大器。 导出抽头系数，使得通过信号消除环路的上部和下部分支行进的信号被对准，并且功率放大器的输出信号相等。

公开(公告)号：US6144710A

公开(公告)日：2000-11-07

申请号：US65193

申请日：1998-04-23

申请人： Jiunn-Tsair Chen ,  Young-Kai Chen ,  Huan-Shang Tsai

发明人： Jiunn-Tsair Chen ,  Young-Kai Chen ,  Huan-Shang Tsai

IPC分类号： H04B7/26 ,  H03M13/23 ,  H04B7/005 ,  H04L25/02 ,  H03D1/04 ,  H03D1/06 ,  H03K5/01 ,  H03K6/04 ,  H04B1/10

CPC分类号： H04L25/0204

摘要： A cellular communication signal receiver receives a desired signal in the presence of at least one co-channel interference signal. The receiver comprises a channel estimator configured to receive a plurality of training signal samples to estimate the finite impulse response to the desired signal and the co-channel interference signal. The finite impulse response estimates having a predetermined number of channel taps defining the length of the desired channel and the length of co-channel interference channel. A Viterbi decoder is coupled to the channel estimator, and configured to receive the desired and co-channel interference signals. The channel estimator generates channel tap estimates. A power calculator is coupled to the channel estimator and configured to estimate the power of the estimated channel taps. A joint channel trimmer is coupled to the power calculator and configured to maintain a joint channel length, such that the desired signal channel length plus the co-channel interference channel length have a fixed size that defines the number of states the Viterbi decoder allocates to the desired signal and the co-channel interference signal.

摘要翻译： 蜂窝通信信号接收机在存在至少一个同信道干扰信号的情况下接收所需信号。 接收机包括信道估计器，其被配置为接收多个训练信号采样以估计对期望信号和同信道干扰信号的有限脉冲响应。 有限脉冲响应估计具有预定数量的信道抽头，其定义所需信道的长度和同信道干扰信道的长度。 维特比解码器耦合到信道估计器，并且被配置为接收期望的和同信道干扰信号。 信道估计器产生信道抽头估计。 功率计算器耦合到信道估计器并且被配置为估计所估计的信道抽头的功率。 联合通道微调器耦合到功率计算器并且被配置为保持联合通道长度，使得期望的信道信道长度加上同信道干扰信道长度具有固定的大小，其定义维特比解码器分配给的信道的数量 所需信号和同信道干扰信号。

公开(公告)号：US20100289699A1

公开(公告)日：2010-11-18

申请号：US12614450

申请日：2009-11-09

申请人： Cheng-Hsuan Wu ,  Chin-Tseng Huang ,  Yung-Szu Tu ,  Jiunn-Tsair Chen

发明人： Cheng-Hsuan Wu ,  Chin-Tseng Huang ,  Yung-Szu Tu ,  Jiunn-Tsair Chen

IPC分类号： G01S3/02

CPC分类号： G01S5/0294

摘要： A method for determining a position of a mobile station in a wireless communication system includes generating a state equation set according to a current state of the mobile station, for predicting a position and a velocity of the mobile station after a predetermined period, and corresponding the state equation set to a graphic interface for calculating the position and the velocity after the predetermined period.

摘要翻译： 一种用于确定无线通信系统中的移动台的位置的方法包括根据移动台的当前状态生成一个状态方程组，用于在预定时段之后预测移动台的位置和速度，并且对应于 状态方程设置为用于计算预定时段之后的位置和速度的图形界面。

公开(公告)号：US20100272167A1

公开(公告)日：2010-10-28

申请号：US12430893

申请日：2009-04-28

申请人： Yen-Chin Liao ,  Yung-Szu Tu ,  Cheng-Hsuan Wu ,  Jiunn-Tsair Chen

发明人： Yen-Chin Liao ,  Yung-Szu Tu ,  Cheng-Hsuan Wu ,  Jiunn-Tsair Chen

IPC分类号： H04B17/00

CPC分类号： H04L1/0021 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/1607

摘要： The present invention provides a method for simplifying a probabilistic rate adaptation procedure in a wireless communication system, which comprises calculating a conditional probability density function of SNR of a transmitted signal by the probabilistic rate adaptation procedure, to generate an SNR estimation result, taking logarithm on the SNR estimation result to generate a logarithm result, and partitioning SNR values into a plurality of regions according to the logarithm result, to generate a discrete function from the SNR estimation result.

摘要翻译： 本发明提供了一种用于简化无线通信系统中的概率速率自适应过程的方法，其包括通过概率速率自适应过程计算发射信号的SNR的条件概率密度函数，以产生SNR估计结果，以对数 所述SNR估计结果产生对数结果，并且根据所述对数结果将SNR值分割成多个区域，以从所述SNR估计结果生成离散函数。

公开(公告)号：US20100026385A1

公开(公告)日：2010-02-04

申请号：US12465623

申请日：2009-05-13

申请人： Chun-Hsien Wen ,  Yun-Shen Chang ,  Wen-Sheng Hou ,  Chien-Cheng Lin ,  Jiunn-Tsair Chen

发明人： Chun-Hsien Wen ,  Yun-Shen Chang ,  Wen-Sheng Hou ,  Chien-Cheng Lin ,  Jiunn-Tsair Chen

IPC分类号： G01R29/00

CPC分类号： H03F1/3247 ,  H03F1/3241 ,  H03F2200/468

摘要： A calibration device for a power amplifier includes a calculation unit, a first storage unit and a multiplier. The calculation unit is utilized for generating a calibration factor according to a value of a characteristic parameter of the power amplifier. The first storage unit coupled to the calculation unit, for storing the calibration factor. The multiplier is coupled to the first storage unit and a baseband unit, for multiplying a baseband signal outputted from the baseband unit by the calibration factor for generating an input signal to the power amplifier.

摘要翻译： 用于功率放大器的校准装置包括计算单元，第一存储单元和乘法器。 计算单元用于根据功率放大器的特性参数的值产生校准因子。 第一存储单元耦合到计算单元，用于存储校准因子。 乘法器耦合到第一存储单元和基带单元，用于将从基带单元输出的基带信号乘以校准因子，以产生输入信号到功率放大器。

公开(公告)号：US08144823B2

公开(公告)日：2012-03-27

申请号：US12361043

申请日：2009-01-28

申请人： Yun-Shen Chang ,  Jiunn-Tsair Chen

发明人： Yun-Shen Chang ,  Jiunn-Tsair Chen

IPC分类号： H03D1/04

CPC分类号： H04B7/084

摘要： The present invention discloses a signal processing device and a signal processing method. The signal processing device includes a plurality of receiving devices, a storage module, a weighting module, and a processing module. Each of the receiving devices is capable of receiving an original signal stream, thus the plurality of receiving devices can generate a set of signal streams. The storage module is used for storing a plurality set of signal streams generated by the plurality of receiving devices. The weighting module can generate plurality sets of rotated signal streams according to a reference phase and the plurality sets of signal streams, and further generate a set of weighting signal according to the rotated signal streams. And, the processing module can generate a set of weighting signal streams according to the set of weighting signal and the plurality set of signal streams.

摘要翻译： 本发明公开了一种信号处理装置和信号处理方法。 信号处理装置包括多个接收装置，存储模块，加权模块和处理模块。 每个接收设备能够接收原始信号流，因此多个接收设备可以生成一组信号流。 存储模块用于存储由多个接收装置产生的多组信号流。 加权模块可以根据参考相位和多组信号流产生多组旋转信号流，并且还根据旋转的信号流生成一组加权信号。 并且，处理模块可以根据加权信号和多组信号流生成一组加权信号流。

公开(公告)号：US08064845B2

公开(公告)日：2011-11-22

申请号：US12325244

申请日：2008-11-30

申请人： Chun-Hsueh Chu ,  Jiunn-Tsair Chen

发明人： Chun-Hsueh Chu ,  Jiunn-Tsair Chen

IPC分类号： H04B1/44

CPC分类号： H04B1/48

摘要： A RF transceiver includes an antenna, a receiver, a baseband circuit, a transmitter, and a T/R switch circuit. The T/R switch circuit is used for coupling the antenna and the receiver or coupling the antenna and the transmitter. The T/R switch circuit is coupled to the baseband circuit so as to receive biases provided from the baseband circuit. The T/R switch circuit includes four transistors and a power detector. The power detector detects the power of the output signal of the T/R switch circuit, so that the baseband circuit can adjust biases provided to the T/R switch circuit according to the power of the output signal.

摘要翻译： RF收发器包括天线，接收器，基带电路，发射器和T / R开关电路。 T / R开关电路用于耦合天线和接收器或耦合天线和发射机。 T / R开关电路耦合到基带电路，以便接收从基带电路提供的偏置。 T / R开关电路包括四个晶体管和一个功率检测器。 功率检测器检测T / R开关电路的输出信号的功率，使得基带电路可以根据输出信号的功率调整提供给T / R开关电路的偏置。

公开(公告)号：US20110026392A1

公开(公告)日：2011-02-03

申请号：US12637733

申请日：2009-12-14

申请人： Chun-Hsien Wen ,  Jiunn-Tsair Chen ,  Cheng-Hsuan Wu ,  Yung-Szu Tu

发明人： Chun-Hsien Wen ,  Jiunn-Tsair Chen ,  Cheng-Hsuan Wu ,  Yung-Szu Tu

IPC分类号： H04J11/00 ,  H04B7/00 ,  H04B7/208

CPC分类号： H04L5/0007 ,  H04L5/0039 ,  H04L5/006 ,  H04L5/0064

摘要： A method sub-carrier grouping for a wireless communication system including a plurality of sub-carriers is disclosed. The method includes determining a coherent bandwidth of the plurality of sub-carriers, and dividing the plurality of sub-carriers into a plurality of sub-carrier groups according to the coherent bandwidth, wherein the size of each sub-carrier group is smaller than or equal to the coherent bandwidth.

摘要翻译： 公开了一种用于包括多个子载波的无线通信系统的方法子载波分组。 该方法包括确定多个子载波的相干带宽，并根据相干带宽将多个子载波分成多个子载波组，其中每个子载波组的大小小于或等于 等于相干带宽。