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    RECEPTION APPARATUS OF MULTI INPUT MULTI OUTPUT SYSTEM AND RECEPTION SIGNAL PROCESSING METHOD
    3.
    发明申请
    RECEPTION APPARATUS OF MULTI INPUT MULTI OUTPUT SYSTEM AND RECEPTION SIGNAL PROCESSING METHOD 有权
    多输入多输出系统和接收信号处理方法的接收装置

    公开(公告)号：US20170054487A1

    公开(公告)日：2017-02-23

    申请号：US15220707

    申请日：2016-07-27

    申请人： Electronics and Telecommunications Research Institute

    发明人： Mi Kyung SUK ,  Bong Su KIM ,  Min Soo KANG ,  Kwang Seon KIM ,  Woo Jin BYUN ,  Young Seung LEE

    IPC分类号： H04B7/08 ,  H04B7/04

    CPC分类号： H04L25/02 ,  H04B7/0413 ,  H04L25/0206 ,  H04L25/0214 ,  H04L25/03331

    摘要： The present invention relates to a reception apparatus. The reception apparatus includes a plurality of reception antennas; and a signal processing unit configured to use reception characteristic of the plurality of reception antennas, wherein the signal processing unit comprises a channel estimation unit configured to respectively estimate a channel response matrix of each signal received via the plurality of reception antennas, and a coding unit configured to define a coding matrix based on an inverse matrix of the estimated channel response matrix, and to obtain a final output signal corresponding to each reception antenna by applying the coding matrix to each received signal.

    摘要翻译： 本发明涉及一种接收装置。 接收装置包括多个接收天线; 以及信号处理单元，被配置为使用所述多个接收天线的接收特性，其中所述信号处理单元包括：信道估计单元，被配置为分别估计经由所述多个接收天线接收的每个信号的信道响应矩阵;以及编码单元 被配置为基于估计的信道响应矩阵的逆矩阵来定义编码矩阵，并且通过将编码矩阵应用于每个接收信号来获得与每个接收天线相对应的最终输出信号。

    Apparatus and method for chip level equalization in wireless communication system
    4.
    发明授权
    Apparatus and method for chip level equalization in wireless communication system 有权
    无线通信系统芯片级均衡的装置及方法

    公开(公告)号：US08483264B2

    公开(公告)日：2013-07-09

    申请号：US12984193

    申请日：2011-01-04

    申请人： Chae-Man Lim ,  Ho-Il Kim ,  Kyung-Ha Lee

    发明人： Chae-Man Lim ,  Ho-Il Kim ,  Kyung-Ha Lee

    IPC分类号： H03H7/40 ,  H04B1/10

    CPC分类号： H04L25/0214 ,  H04L25/0216 ,  H04L25/0224 ,  H04L25/03012

    摘要： An apparatus and a method for improving performance of an equalizer in a wireless communication system are provided. The apparatus of a reception end includes a search unit and an estimator. The search unit determines power values of respective taps inside a window based on a signal received via a pilot channel, and classifies the taps into one or more meaningful taps and one or more noise taps. The estimator allocates one or more 1-tap channel estimators to the one or more meaningful taps, and determines a channel estimation vector based on a channel estimation value of the one or more meaningful taps determined by the one or more 1-tap channel estimators.

    摘要翻译： 提供了一种用于提高无线通信系统中的均衡器的性能的装置和方法。 接收端的装置包括搜索单元和估计器。 搜索单元基于经由导频信道接收到的信号来确定窗口内的各个抽头的功率值，并将该抽头分类成一个或多个有意义的抽头和一个或多个噪声抽头。 估计器将一个或多个1抽头信道估计器分配给一个或多个有意义的抽头，并且基于由一个或多个1抽头信道估计器确定的一个或多个有意义的抽头的信道估计值来确定信道估计向量。

    Data transmission method with phase shift error correction
    5.
    发明授权
    Data transmission method with phase shift error correction 有权
    具有相移误差校正的数据传输方法

    公开(公告)号：US08054924B2

    公开(公告)日：2011-11-08

    申请号：US11130926

    申请日：2005-05-17

    申请人： Sethu K. Madhavan

    发明人： Sethu K. Madhavan

    IPC分类号： H04B1/10

    CPC分类号： H04L27/2275 ,  H04L25/0214 ,  H04L25/0228 ,  H04L25/03019

    摘要： A data transmission method with phase shift error correction comprising: transmitting through a network a transmission signal, wherein the transmission signal comprises a reference signal component having a predetermined frequency and a data signal component; receiving the transmission signal, wherein the received transmission signal includes a phase shift error caused by the network, wherein the phase shift error is in both the received reference signal component and the received data signal component; generating a multiplier signal at a receiver having the predetermined reference frequency; using the multiplier signal to determine the phase shift error in the received transmission signal; and correcting the received data signal component using the determined phase shift error.

    摘要翻译： 一种具有相移误差校正的数据传输方法，包括：通过网络传输传输信号，其中传输信号包括具有预定频率的参考信号分量和数据信号分量; 接收所述发送信号，其中所述接收的发送信号包括由所述网络引起的相移误差，其中所述相移误差在所接收的参考信号分量和所接收的数据信号分量中; 在具有预定参考频率的接收机处产生乘法器信号; 使用乘法器信号来确定接收的发送信号中的相移误差; 以及使用所确定的相移误差校正所接收的数据信号分量。

    APPARATUS AND METHOD FOR CHIP LEVEL EQUALIZATION IN WIRELESS COMMUNICATION SYSTEM
    6.
    发明申请
    APPARATUS AND METHOD FOR CHIP LEVEL EQUALIZATION IN WIRELESS COMMUNICATION SYSTEM 有权
    无线通信系统芯片级均衡的设备与方法

    公开(公告)号：US20110170588A1

    公开(公告)日：2011-07-14

    申请号：US12984193

    申请日：2011-01-04

    申请人： Chae-Man LIM ,  Ho-Il KIM ,  Kyung-Ha LEE

    发明人： Chae-Man LIM ,  Ho-Il KIM ,  Kyung-Ha LEE

    IPC分类号： H04L27/01

    CPC分类号： H04L25/0214 ,  H04L25/0216 ,  H04L25/0224 ,  H04L25/03012

    摘要： An apparatus and a method for improving performance of an equalizer in a wireless communication system are provided. The apparatus of a reception end includes a search unit and an estimator. The search unit determines power values of respective taps inside a window based on a signal received via a pilot channel, and classifies the taps into one or more meaningful taps and one or more noise taps. The estimator allocates one or more 1-tap channel estimators to the one or more meaningful taps, and determines a channel estimation vector based on a channel estimation value of the one or more meaningful taps determined by the one or more 1-tap channel estimators.

    摘要翻译： 提供了一种用于提高无线通信系统中的均衡器的性能的装置和方法。 接收端的装置包括搜索单元和估计器。 搜索单元基于经由导频信道接收到的信号来确定窗口内的各个抽头的功率值，并将该抽头分类成一个或多个有意义的抽头和一个或多个噪声抽头。 估计器将一个或多个1抽头信道估计器分配给一个或多个有意义的抽头，并且基于由一个或多个1抽头信道估计器确定的一个或多个有意义的抽头的信道估计值来确定信道估计向量。

    Method and apparatus for determining path loss by combining geolocation with interference suppression
    7.
    发明授权
    Method and apparatus for determining path loss by combining geolocation with interference suppression 有权
    通过将地理位置与干扰抑制相结合来确定路径损耗的方法和装置

    公开(公告)号：US07804786B2

    公开(公告)日：2010-09-28

    申请号：US11434754

    申请日：2006-05-17

    申请人： John Peter Carlson ,  John Arpee

    发明人： John Peter Carlson ,  John Arpee

    IPC分类号： G01R31/08

    CPC分类号： H04W84/042 ,  H04B17/309 ,  H04B17/318 ,  H04L25/0214 ,  H04W16/18 ,  H04W48/20

    摘要： The instant disclosure generally relates to a method and apparatus for determining path loss by combining geolocation with interference suppression. In one embodiment, the disclosure relates to a method for determining a path loss value between a receiver at a first location and a wireless mobile device at a second location. The method includes the steps of: (a) locating the mobile device at the second location and (b) at the receiver: (i) receiving a first signal transmitted by the mobile device at the second location; (ii) determining a received signal level of the first signal; (iii) receiving a second signal comprising data from which a transmitted signal level of the mobile device at the second location can be determined; and (iv) determining from the first and second signals the path loss value between the receiver and the mobile device at the second location.

    摘要翻译： 本公开通常涉及通过将地理位置与干扰抑制相结合来确定路径损耗的方法和装置。 在一个实施例中，本公开涉及一种用于确定第一位置处的接收机与第二位置处的无线移动设备之间的路径损耗值的方法。 该方法包括以下步骤：（a）将移动设备定位在第二位置，（b）在接收机处：（i）在第二位置处接收由移动设备发送的第一信号; （ii）确定所述第一信号的接收信号电平; （iii）接收包括数据的第二信号，可从该数据确定第二位置处的移动设备的发射信号电平; 以及（iv）从所述第一和第二信号确定所述接收机和所述移动设备在所述第二位置处的路径损耗值。

    Adapting operation of a communication filter based on mobile unit velocity
    8.
    发明授权
    Adapting operation of a communication filter based on mobile unit velocity 失效
    基于移动单元速度调整通信过滤器的操作

    公开(公告)号：US07454209B2

    公开(公告)日：2008-11-18

    申请号：US10632411

    申请日：2003-08-01

    申请人： Parvathanathan Subrahmanya

    发明人： Parvathanathan Subrahmanya

    IPC分类号： H04Q7/20 ,  H04B1/00 ,  H04B1/10

    CPC分类号： H04L25/0214 ,  H04B1/7115 ,  H04B2201/70701 ,  H04L25/0228

    摘要： A method and apparatus are provided for adapting a pilot filter based on the velocity of a wireless communication device (WCD) in relation to a wireless network infrastructure. The pilot filter is adapted by determining pilot coefficients for the pilot filter based on the WCD velocity. The pilot filter may be located in the WCD, or in the network infrastructure, or in both.

    摘要翻译： 提供了一种用于根据无线通信设备（WCD）相对于无线网络基础设施的速度来适配导频滤波器的方法和装置。 通过基于WCD速度确定导频滤波器的导频系数来适配导频滤波器。 导频滤波器可以位于WCD中，或者位于网络基础设施中，或两者中。

    Time delay estimator
    9.
    发明授权
    Time delay estimator 有权
    时间延迟估计器

    公开(公告)号：US07251299B2

    公开(公告)日：2007-07-31

    申请号：US10444266

    申请日：2003-05-23

    申请人： Fabian Lis ,  Joshua Kablotsky ,  Haim Primo

    发明人： Fabian Lis ,  Joshua Kablotsky ,  Haim Primo

    IPC分类号： H04D1/00 ,  H04L27/06

    CPC分类号： H04L25/0214 ,  H04B3/23

    摘要： A system for time delay estimation in a discrete time processing system includes a cross correlator that performs cross correlation on a first signal and a second signal, and provides a cross correlated output signals indicative thereof. A lag smoother receives the cross correlated output signals, and provides lag smoothed output signals indicative thereof. A select logic module selects a pre-defined number of signal values from a respective set indicative of the lag smoothed output signals to compute the time delay estimation associated with the first and second signals.

    摘要翻译： 在离散时间处理系统中用于时间延迟估计的系统包括在第一信号和第二信号上执行互相关的交叉相关器，并提供指示其的交叉相关输出信号。 滞后平滑器接收交叉相关输出信号，并提供指示其的滞后平滑输出信号。 选择逻辑模块从指示滞后平滑输出信号的相应集合中选择预定数量的信号值，以计算与第一和第二信号相关联的时延估计。

    Adaptive pilot filter for a wireless communication system
    10.
    发明授权
    Adaptive pilot filter for a wireless communication system 有权
    用于无线通信系统的自适应导频滤波器

    公开(公告)号：US07230975B2

    公开(公告)日：2007-06-12

    申请号：US09924199

    申请日：2001-08-07

    申请人： Parvathanathan Subrahmanya ,  Da-shan Shiu ,  Avneesh Agrawal

    发明人： Parvathanathan Subrahmanya ,  Da-shan Shiu ,  Avneesh Agrawal

    IPC分类号： H04B1/00 ,  H04B1/10

    CPC分类号： H04L25/0228 ,  H04B1/7117 ,  H04B2201/70701 ,  H04L25/0214

    摘要： Techniques to filter pilot symbols for a pilot in an “adaptive” manner to provide an improved estimate of the response of a communication channel. A received signal may experience different channel conditions at different times, and different multipaths may also experience different channel conditions even when received close in time. A pilot filter with an adaptive response is used to provide an improved estimate of the channel response. Various adaptive pilot filtering schemes may be used. In a first scheme, the channel conditions are estimated based on the quality of the received pilot. In a second scheme, the channel conditions are estimated based on the quality of the pilot estimates (i.e., the filtered pilot symbols). For each scheme, a particular filter response is selected based on the estimated quality of either the received pilot or the pilot estimates.

    摘要翻译： 用于以“自适应”方式滤波导频的导频符号以提供对通信信道的响应的改进估计的技术。 接收到的信号可能在不同时间经历不同的信道条件，即使在接收时间短的情况下，不同的多路径也可能经历不同的信道条件。 使用具有自适应响应的导频滤波器来提供信道响应的改进的估计。 可以使用各种自适应导频滤波方案。 在第一方案中，基于接收到的导频的质量来估计信道条件。 在第二方案中，基于导频估计的质量（即，滤波的导频符号）来估计信道条件。 对于每个方案，基于所接收的导频或导频估计的估计质量来选择特定的滤波器响应。