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    Apparatus and method for receiving signals in multiple-input multiple-output wireless communication system
    4.
    发明授权
    Apparatus and method for receiving signals in multiple-input multiple-output wireless communication system 有权
    用于在多输入多输出无线通信系统中接收信号的装置和方法

    公开(公告)号：US08432986B2

    公开(公告)日：2013-04-30

    申请号：US12004112

    申请日：2007-12-20

    申请人： Joo-Hyun Lee ,  Sang-Boh Yun ,  Yong-Soo Cho ,  Jae-Kwon Kim ,  Tae-Ho Im

    发明人： Joo-Hyun Lee ,  Sang-Boh Yun ,  Yong-Soo Cho ,  Jae-Kwon Kim ,  Tae-Ho Im

    IPC分类号： H04B7/02

    CPC分类号： H04L25/03171 ,  H04B7/0854 ,  H04L25/067 ,  H04L27/38 ,  H04L2025/03426

    摘要： An apparatus and method for receiving signals in a multiple-input, multiple-output (MIMO) wireless communication system is provided. A receiving end using as many as N Receive (Rx) antennas includes a first detector, as many as (N−2) nth detectors, and an Nth detector. A signal detection technique of the present invention has a low complexity and a throughput similar to that of a Maximum Likelihood (ML) scheme in a Multiple-Input Multiple-Output (MIMO) wireless communication system using a Spatial Multiplexing (SM) scheme.

    摘要翻译： 提供了一种用于在多输入多输出（MIMO）无线通信系统中接收信号的装置和方法。 使用多达N个接收（Rx）天线的接收端包括第一检测器，多达（N-2）个第n个检测器和第N个检测器。 本发明的信号检测技术具有与使用空间复用（SM）方案的多输入多输出（MIMO）无线通信系统中的最大似然（ML）方案相似的低复杂度和吞吐量。

    Apparatus and method for receiving signals in multiple-input multiple-output wireless communication system
    5.
    发明申请
    Apparatus and method for receiving signals in multiple-input multiple-output wireless communication system 有权
    用于在多输入多输出无线通信系统中接收信号的装置和方法

    公开(公告)号：US20080152032A1

    公开(公告)日：2008-06-26

    申请号：US12004112

    申请日：2007-12-20

    申请人： Joo-Hyun Lee ,  Sang-Boh Yun ,  Yong-Soo Cho ,  Jae-Kwon Kim ,  Tae-Ho Im

    发明人： Joo-Hyun Lee ,  Sang-Boh Yun ,  Yong-Soo Cho ,  Jae-Kwon Kim ,  Tae-Ho Im

    IPC分类号： H04L27/28

    CPC分类号： H04L25/03171 ,  H04B7/0854 ,  H04L25/067 ,  H04L27/38 ,  H04L2025/03426

    摘要： An apparatus and method for receiving signals in a multiple-input, multiple-output (MIMO) wireless communication system is provided. A receiving end using as many as N Receive (Rx) antennas includes a first detector, as many as (N-2) nth detectors, and an Nth detector. A signal detection technique of the present invention has a low complexity and a throughput similar to that of a Maximum Likelihood (ML) scheme in a Multiple-Input Multiple-Output (MIMO) wireless communication system using a Spatial Multiplexing (SM) scheme.

    摘要翻译： 提供了一种用于在多输入多输出（MIMO）无线通信系统中接收信号的装置和方法。 使用多达N个接收（Rx）天线的接收端包括第一检测器，多达（N-2）个第n个检测器和第N个检测器。 本发明的信号检测技术具有与使用空间复用（SM）方案的多输入多输出（MIMO）无线通信系统中的最大似然（ML）方案相似的低复杂度和吞吐量。

    Preamble design method for reducing overhead during handover in hierarchical cellular system
    6.
    发明授权
    Preamble design method for reducing overhead during handover in hierarchical cellular system 有权
    用于在分层蜂窝系统中减少切换期间的开销的前导码设计方法

    公开(公告)号：US08660563B2

    公开(公告)日：2014-02-25

    申请号：US12316727

    申请日：2008-12-16

    申请人： Joo-Hyun Lee ,  Jin-Ghoo Choi ,  Sang-Boh Yun ,  Jong-Ho Lee ,  Yong-Soo Cho ,  Jae-Kwon Kim ,  Yeong-Jun Kim ,  Kyung-Soo Woo ,  Hyun-Il Yoo

    发明人： Joo-Hyun Lee ,  Jin-Ghoo Choi ,  Sang-Boh Yun ,  Jong-Ho Lee ,  Yong-Soo Cho ,  Jae-Kwon Kim ,  Yeong-Jun Kim ,  Kyung-Soo Woo ,  Hyun-Il Yoo

    IPC分类号： H04W36/04

    CPC分类号： H04W36/30 ,  H04B7/2606 ,  H04W16/26

    摘要： Provided is a handover method of a wireless communication system using a hierarchical cellular scheme. In the method, signal quality of a serving node is measured, so that whether to start scanning for a handover is determined. When the scanning for the handover starts, signal qualities of a serving cell including the serving node and one or more neighbor cells are measured through a first preamble including a first identifier for distinguishing a cell. An intra-cell handover or an inter-cell handover is selected using the signal qualities of the serving cell and the neighbor cells. Therefore, a terminal can easily distinguish between the inter-cell handover and the intra-cell handover, and an overhead during a handover can be reduced because an intra-cell handover procedure is simplified.

    摘要翻译： 提供了使用分层蜂窝方案的无线通信系统的切换方法。 在该方法中，测量服务节点的信号质量，从而确定是否开始扫描切换。 当切换的扫描开始时，包括服务节点和一个或多个相邻小区的服务小区的信号质量通过包括用于区分小区的第一标识符的第一前同步码进行测量。 使用服务小区和相邻小区的信号质量来选择小区内切换或小区间切换。 因此，终端可以容易地区分小区间切换和小区内切换，并且可以减少切换期间的开销，因为小区内切换过程被简化。

    Preamble design method for reducing overhead during handover in hierarchical cellular system
    7.
    发明申请
    Preamble design method for reducing overhead during handover in hierarchical cellular system 有权
    用于在分级蜂窝系统中减少切换期间的开销的前导码设计方法

    公开(公告)号：US20090156214A1

    公开(公告)日：2009-06-18

    申请号：US12316727

    申请日：2008-12-16

    申请人： Joo-Hyun Lee ,  Jin-Ghoo Choi ,  Sang-Boh Yun ,  Jong-Ho Lee ,  Yong-Soo Cho ,  Jae-Kwon Kim ,  Yeong-Jun Kim ,  Kyung-Soo Woo ,  Hyun-Il Yoo

    发明人： Joo-Hyun Lee ,  Jin-Ghoo Choi ,  Sang-Boh Yun ,  Jong-Ho Lee ,  Yong-Soo Cho ,  Jae-Kwon Kim ,  Yeong-Jun Kim ,  Kyung-Soo Woo ,  Hyun-Il Yoo

    IPC分类号： H04W36/00

    CPC分类号： H04W36/30 ,  H04B7/2606 ,  H04W16/26

    摘要： Provided is a handover method of a wireless communication system using a hierarchical cellular scheme. In the method, signal quality of a serving node is measured, so that whether to start scanning for a handover is determined. When the scanning for the handover starts, signal qualities of a serving cell including the serving node and one or more neighbor cells are measured through a first preamble including a first identifier for distinguishing a cell. An intra-cell handover or an inter-cell handover is selected using the signal qualities of the serving cell and the neighbor cells. Therefore, a terminal can easily distinguish between the inter-cell handover and the intra-cell handover, and an overhead during a handover can be reduced because an intra-cell handover procedure is simplified.

    摘要翻译： 提供了使用分层蜂窝方案的无线通信系统的切换方法。 在该方法中，测量服务节点的信号质量，从而确定是否开始扫描切换。 当切换的扫描开始时，包括服务节点和一个或多个相邻小区的服务小区的信号质量通过包括用于区分小区的第一标识符的第一前同步码进行测量。 使用服务小区和相邻小区的信号质量来选择小区内切换或小区间切换。 因此，终端可以容易地区分小区间切换和小区内切换，并且可以减少切换期间的开销，因为小区内切换过程被简化。

    Apparatus and method for detecting signal in multiple-input multiple-output (MIMO) wireless communication system
    8.
    发明申请
    Apparatus and method for detecting signal in multiple-input multiple-output (MIMO) wireless communication system 有权
    用于在多输入多输出（MIMO）无线通信系统中检测信号的装置和方法

    公开(公告)号：US20080310556A1

    公开(公告)日：2008-12-18

    申请号：US12157679

    申请日：2008-06-12

    申请人： Joo-Hyun Lee ,  Sang-Boh Yun ,  Young-Hoon Kwon ,  Soong-Yoon Choi ,  Yong-Soo Cho ,  Tae-Ho Im ,  Jae-Kwon Kim

    发明人： Joo-Hyun Lee ,  Sang-Boh Yun ,  Young-Hoon Kwon ,  Soong-Yoon Choi ,  Yong-Soo Cho ,  Tae-Ho Im ,  Jae-Kwon Kim

    IPC分类号： H04L27/06

    CPC分类号： H04L25/067 ,  H04L27/38

    摘要： Receiving apparatus and method in a Multiple-Input Multiple-Output (MIMO) wireless communication system are provided. The receiver having N-ary receive antennas includes a decomposer for decomposing a channel matrix to a matrix Q and a matrix R through a QR decomposition; a detector for determining a candidate group of an n-th phase by estimating a plurality of transmit signal vectors by substituting a plurality of transmittable symbols into symbol combinations of a candidate group of a (n−1)-th phase as an n-th symbol and detecting (n+1)-th through N-th symbols using characteristics of the matrix R; a calculator for calculating square Euclidean distance values between the transmit signal vectors and a receive signal vector; and a determiner for determining the candidate group of the n-th phase by selecting transmit signal vectors having the smallest square Euclidean distance value among the transmit signal vectors.

    摘要翻译： 提供了一种多输入多输出（MIMO）无线通信系统中的接收装置和方法。 具有N元接收天线的接收机包括用于通过QR分解将信道矩阵分解为矩阵Q和矩阵R的分解器; 检测器，用于通过将第（n-1）个相位的候选组的符号组合替换为第n个第（n-1）个相位的符号组合来估计多个发送信号向量来确定第n相的候选组， 符号和检测（n + 1）到第N个符号，使用矩阵R的特性; 用于计算发射信号矢量与接收信号矢量之间的欧氏距离值的计算器; 以及确定器，用于通过选择发送信号向量中具有最小的欧氏距离值的发送信号矢量来确定第n相的候选组。

    Apparatus and method for detecting signal in multiple-input multiple-output (MIMO) wireless communication system
    9.
    发明授权
    Apparatus and method for detecting signal in multiple-input multiple-output (MIMO) wireless communication system 有权
    用于在多输入多输出（MIMO）无线通信系统中检测信号的装置和方法

    公开(公告)号：US08000422B2

    公开(公告)日：2011-08-16

    申请号：US12157679

    申请日：2008-06-12

    申请人： Joo-Hyun Lee ,  Sang-Boh Yun ,  Young-Hoon Kwon ,  Soong-Yoon Choi ,  Yong-Soo Cho ,  Tae-Ho Im ,  Jae-Kwon Kim

    发明人： Joo-Hyun Lee ,  Sang-Boh Yun ,  Young-Hoon Kwon ,  Soong-Yoon Choi ,  Yong-Soo Cho ,  Tae-Ho Im ,  Jae-Kwon Kim

    IPC分类号： H04B1/10

    CPC分类号： H04L25/067 ,  H04L27/38

    摘要： Receiving apparatus and method in a Multiple-Input Multiple-Output (MIMO) wireless communication system are provided. The receiver having N-ary receive antennas includes a decomposer for decomposing a channel matrix to a matrix Q and a matrix R through a QR decomposition; a detector for determining a candidate group of an n-th phase by estimating a plurality of transmit signal vectors by substituting a plurality of transmittable symbols into symbol combinations of a candidate group of a (n−1)-th phase as an n-th symbol and detecting (n+1)-th through N-th symbols using characteristics of the matrix R; a calculator for calculating square Euclidean distance values between the transmit signal vectors and a receive signal vector; and a determiner for determining the candidate group of the n-th phase by selecting transmit signal vectors having the smallest square Euclidean distance value among the transmit signal vectors.

    摘要翻译： 提供了一种多输入多输出（MIMO）无线通信系统中的接收装置和方法。 具有N元接收天线的接收机包括用于通过QR分解将信道矩阵分解为矩阵Q和矩阵R的分解器; 检测器，用于通过将第（n-1）个相位的候选组的符号组合替换为第n个第（n-1）个相位的符号组合来估计多个发送信号向量来确定第n相的候选组， 符号和检测（n + 1）到第N个符号，使用矩阵R的特性; 用于计算发射信号矢量与接收信号矢量之间的欧氏距离值的计算器; 以及确定器，用于通过选择发送信号向量中具有最小的欧氏距离值的发送信号矢量来确定第n相的候选组。