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    System and method for transmitting/receiving signal in mobile communication system using multiple input multiple output scheme
    62.
    发明申请
    System and method for transmitting/receiving signal in mobile communication system using multiple input multiple output scheme 审中-公开
    使用多输入多输出方案在移动通信系统中发送/接收信号的系统和方法

    公开(公告)号：US20070082624A1

    公开(公告)日：2007-04-12

    申请号：US11527981

    申请日：2006-09-27

    申请人： Young-Ho Jung ,  Yung-Soo Kim ,  Seung-Hoon Nam ,  Vahid Tarokh

    发明人： Young-Ho Jung ,  Yung-Soo Kim ,  Seung-Hoon Nam ,  Vahid Tarokh

    IPC分类号： H04B1/02 ,  H04B7/02

    CPC分类号： H04L1/0662 ,  H04L1/002

    摘要： Disclosed is a mobile communication system using a Multiple Input Multiple Output (MIMO) scheme. A transmitter of the mobile communication system, generates a unitary space-time matrix to correspond to a codeword if the codeword to be transmitted in a first time interval is input, multiplies the unitary space-time matrix by a first final transmission matrix denoting signals transmitted in a second time interval before the first time interval, thereby generating a second final transmission matrix denoting signals to be transmitted in the second time interval, and transmits signals corresponding to the second final transmission matrix through a plurality of transmit antennas in the second time interval.

    摘要翻译： 公开了使用多输入多输出（MIMO）方案的移动通信系统。 移动通信系统的发射机如果输入要在第一时间间隔中发送的码字，则产生一个单位时空矩阵，以对应于码字，将单位时空矩阵乘以表示发送的信号的第一最终传输矩阵 在第一时间间隔之前的第二时间间隔中，从而生成表示在第二时间间隔中要发送的信号的第二最终传输矩阵，并且在第二时间间隔中通过多个发射天线发送与第二最终传输矩阵相对应的信号 。

    Transmission method for OFDM-MIMO communication system
    65.
    发明授权
    Transmission method for OFDM-MIMO communication system 有权
    OFDM-MIMO通信系统的传输方法

    公开(公告)号：US07623588B2

    公开(公告)日：2009-11-24

    申请号：US11235395

    申请日：2005-09-26

    申请人： Chang-Soon Park ,  Kwang-Bok Lee ,  Seung-Hoon Nam ,  Koo-Chul Jung

    发明人： Chang-Soon Park ,  Kwang-Bok Lee ,  Seung-Hoon Nam ,  Koo-Chul Jung

    IPC分类号： H04B7/02 ,  H04L1/02

    CPC分类号： H04B7/0626 ,  H04B7/066 ,  H04B7/0669 ,  H04L1/0003 ,  H04L1/0618 ,  H04L1/0675 ,  H04L25/0204 ,  H04L27/2608 ,  Y02D70/444

    摘要： A data transmission method in a MIMO-OFDM communication system including at least one receiver for receiving a signal through a plurality of reception antennas and a transmitter for selecting a transmission channel using channel information being fed back from the receiver and transmitting a signal through a plurality of transmission antennas. The method includes selecting a spatial subchannel in which when bits are added by applying at least two spatial modes having different multiplexing gains for an individual subcarrier in a frequency domain, the minimum power increment is required during application of each spatial mode; allocating a spatial mode that requires the minimum total accumulated power, for each subcarrier; and selecting all subcarriers in the order of a subcarrier that requires the minimum power increment.

    摘要翻译： 一种MIMO-OFDM通信系统中的数据传输方法，包括：至少一个接收机，用于通过多个接收天线接收信号;以及发射机，使用从接收机反馈的信道信息，并通过多个接收天线发送信号 的发射天线。 该方法包括选择空间子信道，其中当通过对频域中的各个子载波应用具有不同复用增益的至少两个空间模式来加上比特时，在每个空间模式的应用期间需要最小功率增量; 为每个子载波分配需要最小总累积功率的空间模式; 并按照需要最小功率增量的子载波的顺序选择所有子载波。

    Signal detection method for MIMO communication system employing spatial multiplexing
    66.
    发明申请
    Signal detection method for MIMO communication system employing spatial multiplexing 有权
    采用空间复用的MIMO通信系统的信号检测方法

    公开(公告)号：US20070041467A1

    公开(公告)日：2007-02-22

    申请号：US11507285

    申请日：2006-08-21

    申请人： Jae-Kwon Kim ,  Seung-Hoon Nam

    发明人： Jae-Kwon Kim ,  Seung-Hoon Nam

    IPC分类号： H04L1/02

    CPC分类号： H04L25/03203 ,  H04B7/04 ,  H04L1/0054 ,  H04L1/0631

    摘要： Disclosed is a signal detection method for a receiver of a Multiple-Input Multiple-Output (MIMO) communication system having nT and nR (where nR is greater than or equal to nT) transmission and reception antennas, respectively, and an nT×nR channel matrix. The signal detection method includes selecting a plurality of sub-channel matrices having smaller dimensions than the nT×nR channel matrix, estimating transmission symbols received from corresponding transmission antennas using a maximum likelihood decoding method with respect to a received signal corresponding to each of the sub-channel matrices, estimating transmission symbols received from the remaining transmission antenna(s) using the estimated transmission symbols, temporarily storing a candidate symbol set composed of the estimated transmission symbols, and comparing candidate symbol sets corresponding to all the sub-channel matrices and determining the smallest candidate symbol set as a transmission symbol set.

    摘要翻译： 公开了一种用于具有n个T和N个R（其中n个R'）的多输入多输出（MIMO）通信系统的接收机的信号检测方法， / SUB>分别大于或等于n T T个发送和接收天线，以及第n个T n个信道矩阵。 信号检测方法包括选择具有比第n个信道矩阵小的维数的多个子信道矩阵，使用最大值估计从对应的发送天线接收的传输符号 对于与每个子信道矩阵相对应的接收信号的似然解码方法，使用所估计的传输符号估计从剩余的发送天线接收的发送符号，临时存储由所估计的发送符号组成的候选符号集， 以及比较与所有子信道矩阵相对应的候选符号组，并确定最小候选符号集作为传输符号集合。

    APPARATUS AND METHOD FOR EXECUTING HANDOVER BASED ON USER DECISION
    67.
    发明申请
    APPARATUS AND METHOD FOR EXECUTING HANDOVER BASED ON USER DECISION 审中-公开
    基于用户决策执行切换的设备和方法

    公开(公告)号：US20080076426A1

    公开(公告)日：2008-03-27

    申请号：US11862860

    申请日：2007-09-27

    申请人： Seung-Hoon Nam

    发明人： Seung-Hoon Nam

    IPC分类号： H04Q7/20 ,  H04Q7/00

    CPC分类号： H04W36/365 ,  H04M1/247 ,  H04W36/14 ,  H04W84/18 ,  H04W92/08

    摘要： Provided is an apparatus and method for performing hand-out from a UMA network to a GSM/GPRS network based on a user decision, or performing hand-in from the GSM/GPRS network to the UMA network. The hand-out starts with an input of a hand-out key directing hand-out into the GSM/GPRS network from a user during voice communication through the UMA network. Then, a handover request message is transmitted to a UMA base station, and a handover command message is received in response.

    摘要翻译： 提供了一种用于基于用户决定或从GSM / GPRS网络到UMA网络执行从UMA网络切换到GSM / GPRS网络的装置和方法。 在通过UMA网络进行语音通信期间，该输出开始于从用户导出到GSM / GPRS网络中的拨出密钥的输入。 然后，切换请求消息被发送到UMA基站，并且响应地接收切换命令消息。

    APPARATUS AND METHOD FOR SELECTING CODING SCHEME IN A MIMO SYSTEM
    68.
    发明申请
    APPARATUS AND METHOD FOR SELECTING CODING SCHEME IN A MIMO SYSTEM 审中-公开
    在MIMO系统中选择编码方案的装置和方法

    公开(公告)号：US20080013642A1

    公开(公告)日：2008-01-17

    申请号：US11777361

    申请日：2007-07-13

    申请人： Seung-Hoon Nam ,  Dae-Young Park ,  Chung-Yong Lee ,  Jae-Sang Ham ,  Kyeong-Yeon Kim ,  Bal-Geum Chol

    发明人： Seung-Hoon Nam ,  Dae-Young Park ,  Chung-Yong Lee ,  Jae-Sang Ham ,  Kyeong-Yeon Kim ,  Bal-Geum Chol

    IPC分类号： H04B7/02

    CPC分类号： H04B7/0619 ,  H04B7/0669 ,  H04B7/0673 ,  H04L1/0009 ,  H04L1/0025 ,  H04L1/0625

    摘要： An apparatus and method for selecting a Space-Time Coding (STC) scheme in a Multiple-Input Multiple-Output (MIMO) system are provided. Upon generation of a data transmission event, a transmitter receives a feedback signal, encodes transmission data using an STC scheme indicated by the feedback signal, and transmits the code symbols to a receiver, and the receiver measures interference factors of available STC schemes using the received code symbols, selects an STC scheme with a smaller interference factor, and notifies the transmitter of the selected STC scheme by a feedback signal.

    摘要翻译： 提供了一种用于在多输入多输出（MIMO）系统中选择时空编码（STC）方案的装置和方法。 在生成数据传输事件时，发射机接收反馈信号，使用由反馈信号指示的STC方案对传输数据进行编码，并将代码符号发送到接收机，并且接收机使用接收到的方法来测量可用STC方案的干扰因子 代码符号，选择具有较小干扰因子的STC方案，并通过反馈信号向发射机通知所选择的STC方案。

    Apparatus and method for detecting a signal in a communication system using Multiple Input Multiple Output scheme
    69.
    发明申请
    Apparatus and method for detecting a signal in a communication system using Multiple Input Multiple Output scheme 审中-公开
    用于使用多输入多输出方案在通信系统中检测信号的装置和方法

    公开(公告)号：US20070230628A1

    公开(公告)日：2007-10-04

    申请号：US11716343

    申请日：2007-03-09

    申请人： Cheol-Woo You ,  Dong-Ho Kim ,  Yung-Soo Kim ,  Seung-Hoon Nam ,  Hyun-Cheol Park ,  Nam-Shik Kim

    发明人： Cheol-Woo You ,  Dong-Ho Kim ,  Yung-Soo Kim ,  Seung-Hoon Nam ,  Hyun-Cheol Park ,  Nam-Shik Kim

    IPC分类号： H04L27/06 ,  H04L1/02

    CPC分类号： H04L1/06 ,  H04L25/03006 ,  H04L2025/03426

    摘要： An apparatus is provided for detecting a signal in a communication system using a Multiple Input Multiple Output (MIMO) scheme. The signal detection apparatus includes a detector for generating second matrixes by extending a first matrix composed of channel response vectors, generating specific matrixes by decomposing the second matrixes, generating a lattice point of vectors constituting the second matrixes, estimating a signal using the generated specific matrixes and lattice point, and detecting the estimated signal as a received signal if the estimated signal has a value within a predetermined allowable range.

    摘要翻译： 提供一种用于在使用多输入多输出（MIMO）方案的通信系统中检测信号的装置。 信号检测装置包括：检测器，用于通过扩展由信道响应向量组成的第一矩阵来产生第二矩阵，通过分解第二矩阵产生特定矩阵，产生构成第二矩阵的向量的格点，使用所生成的特定矩阵估计信号 并且如果所估计的信号具有在预定允许范围内的值，则将所估计的信号作为接收信号进行检测。

    Signal detection method for MIMO communication system employing spatial multiplexing
    70.
    发明授权
    Signal detection method for MIMO communication system employing spatial multiplexing 有权
    采用空间复用的MIMO通信系统的信号检测方法

    公开(公告)号：US07746950B2

    公开(公告)日：2010-06-29

    申请号：US11507285

    申请日：2006-08-21

    申请人： Jae-Kwon Kim ,  Seung-Hoon Nam

    发明人： Jae-Kwon Kim ,  Seung-Hoon Nam

    IPC分类号： H04B7/02 ,  H04L1/02

    CPC分类号： H04L25/03203 ,  H04B7/04 ,  H04L1/0054 ,  H04L1/0631

    摘要： Disclosed is a signal detection method for a receiver of a Multiple-Input Multiple-Output (MIMO) communication system having nT and nR (where nR is greater than or equal to nT) transmission and reception antennas, respectively, and an nT×nR channel matrix. The signal detection method includes selecting a plurality of sub-channel matrices having smaller dimensions than the nT×nR channel matrix, estimating transmission symbols received from corresponding transmission antennas using a maximum likelihood decoding method with respect to a received signal corresponding to each of the sub-channel matrices, estimating transmission symbols received from the remaining transmission antenna(s) using the estimated transmission symbols, temporarily storing a candidate symbol set composed of the estimated transmission symbols, and comparing candidate symbol sets corresponding to all the sub-channel matrices and determining the smallest candidate symbol set as a transmission symbol set.

    摘要翻译： 公开了一种具有nT和nR（其中nR大于或等于nT）发送和接收天线的多输入多输出（MIMO）通信系统的接收机的信号检测方法，以及nT×nR信道 矩阵。 信号检测方法包括：选择具有比nT×nR信道矩阵小的维度的多个子信道矩阵，使用对应于每个子信道的接收信号的最大似然解码方法估计从对应的发送天线接收到的发送符号 - 通道矩阵，使用所估计的传输符号估计从剩余的传输天线接收的传输符号，临时存储由所估计的传输符号组成的候选符号集，并且比较与所有子信道矩阵相对应的候选符号集，并确定 将最小的候选符号设置为发送符号集合。