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    Method for transmitting and receiving signals in open-loop spatial multiplexing mode
    22.
    发明授权
    Method for transmitting and receiving signals in open-loop spatial multiplexing mode 有权
    开环空间复用模式发送和接收信号的方法

    公开(公告)号：US08320488B2

    公开(公告)日：2012-11-27

    申请号：US12382366

    申请日：2009-03-13

    申请人： Moon Il Lee ,  Jin Young Chun ,  Hyun Soo Ko ,  Bin Chul Ihm ,  Wook Bong Lee

    发明人： Moon Il Lee ,  Jin Young Chun ,  Hyun Soo Ko ,  Bin Chul Ihm ,  Wook Bong Lee

    IPC分类号： H04B7/02

    CPC分类号： H04B7/0486 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0671 ,  H04B7/0682 ,  H04L25/03898 ,  H04L27/2626

    摘要： A method for transmitting and receiving signals in an open-loop spatial multiplexing transmission mode is described. If the number of transmit antennas is 2 and a rank is 2, a base station performs precoding according to a cyclic delay diversity scheme by a matrix in which a first matrix corresponding to an identity matrix, a second matrix corresponding to a diagonal matrix, and a third matrix corresponding to a unitary matrix are sequentially multiplied and transmits the precoded signals. This may be substantially the same as the case where the base station performs precoding using a matrix in which the second matrix corresponding to the diagonal matrix and the third matrix corresponding to the unitary matrix are multiplied and transmits the precoded signals. A user equipment estimates a transmission mode according to the received rank indicator and the number of transmit antennas and receives signals.

    摘要翻译： 描述了一种以开环空间复用传输模式发送和接收信号的方法。 如果发送天线的数量为2，秩为2，则基站根据循环延迟分集方案，通过对应于单位矩阵的第一矩阵，对应于对角矩阵的第二矩阵和 顺序地对应于酉矩阵的第三矩阵，并发送预编码的信号。 这可以与基站使用其中对应于对角矩阵的第二矩阵和与酉矩阵相对应的第三矩阵相乘并且发送预编码信号的矩阵来执行预编码的情况基本相同。 用户设备根据接收到的秩指示符和发射天线的数量来估计传输模式并接收信号。

    Method for mode adaptation in MIMO system
    23.
    发明授权
    Method for mode adaptation in MIMO system 有权
    MIMO系统中模式适配的方法

    公开(公告)号：US08111662B2

    公开(公告)日：2012-02-07

    申请号：US12385369

    申请日：2009-04-06

    申请人： Wook Bong Lee ,  Jin Young Chun ,  Sung Ho Park ,  Moon Il Lee ,  Hyun Soo Ko ,  Bin Chul Ihm

    发明人： Wook Bong Lee ,  Jin Young Chun ,  Sung Ho Park ,  Moon Il Lee ,  Hyun Soo Ko ,  Bin Chul Ihm

    IPC分类号： H04W4/00

    CPC分类号： H04B7/0417 ,  H04B7/0452 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/065 ,  H04B7/0689

    摘要： A mode adaptation method for performing mode switching between a single-user MIMO (SU-MIMO) mode and a multi-user MIMO (MU-MIMO) mode includes reporting, by a base station, a MIMO feedback mode to a mobile station, receiving a feedback information determined on the basis of the MIMO feedback mode from the mobile station; and determining a MIMO feedback mode based on the feedback information. The MIMO feedback mode indicates whether it is single-user MIMO or multi-user MIMO and includes a number of mobile stations (MSs) transferred at one time. As a result, the method maximizes a system throughput simultaneously while effectively reducing an amount of feedback information.

    摘要翻译： 用于在单用户MIMO（SU-MIMO）模式和多用户MIMO（MU-MIMO）模式之间执行模式切换的模式适配方法包括由基站向移动台报告MIMO反馈模式，接收 基于来自移动台的MIMO反馈模式确定的反馈信息; 以及基于所述反馈信息确定MIMO反馈模式。 MIMO反馈模式指示它是单用户MIMO还是多用户MIMO，并且包括一次转移的多个移动台（MS）。 因此，该方法可以同时最大化系统吞吐量，同时有效减少反馈信息的数量。

    Feedback Method For Performing A Feedback By Using A Codebook In Mimo System
    24.
    发明申请
    Feedback Method For Performing A Feedback By Using A Codebook In Mimo System 审中-公开
    在Mimo系统中使用代码簿执行反馈的反馈方法

    公开(公告)号：US20120008613A1

    公开(公告)日：2012-01-12

    申请号：US13240591

    申请日：2011-09-22

    申请人： Wook Bong LEE ,  Jin Young Chun ,  Sung Ho Park ,  Moon Il Lee ,  Hyun Soo Ko ,  Bin Chul Ihm

    发明人： Wook Bong LEE ,  Jin Young Chun ,  Sung Ho Park ,  Moon Il Lee ,  Hyun Soo Ko ,  Bin Chul Ihm

    IPC分类号： H04W92/00

    CPC分类号： H04B7/0417 ,  H04B7/0452 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/065 ,  H04B7/0689

    摘要： A feedback method for performing a feedback by using a codebook in Multiple Input Multiple Output (MIMO) system includes receiving, by the mobile station, a MIMO mode type information, generating feedback information by using the codebook selected according to the MIMO mode type information, and transmitting the feedback information to the base station. The codebook includes a SU-MIMO codebook and a MU-MIMO codebook, and the MU-MIMO codebook is formed by extracting codebook elements from the SU-MIMO codebook. As a result, the method maximizes a system throughput simultaneously while effectively reducing an amount of feedback information.

    摘要翻译： 用于通过使用多输入多输出（MIMO）系统中的码本来执行反馈的反馈方法包括：由移动台接收MIMO模式类型信息，通过使用根据MIMO模式类型信息选择的码本生成反馈信息， 以及将所述反馈信息发送到所述基站。 码本包括SU-MIMO码本和MU-MIMO码本，并且通过从SU-MIMO码本中提取码本元素来形成MU-MIMO码本。 因此，该方法可以同时最大化系统吞吐量，同时有效减少反馈信息的数量。

    METHOD OF TRANSMITTING CHANNEL QUALITY INDICATOR
    25.
    发明申请
    METHOD OF TRANSMITTING CHANNEL QUALITY INDICATOR 失效
    发送信道质量指标的方法

    公开(公告)号：US20100254272A1

    公开(公告)日：2010-10-07

    申请号：US12448677

    申请日：2008-03-28

    申请人： Jin Young Chun ,  Bin Chul Ihm ,  Wook Bong Lee ,  Moon Il Lee ,  Hyun Soo Ko

    发明人： Jin Young Chun ,  Bin Chul Ihm ,  Wook Bong Lee ,  Moon Il Lee ,  Hyun Soo Ko

    IPC分类号： H04J1/16 ,  H04W4/00

    CPC分类号： H04L1/0029 ,  H04L1/0027 ,  H04L5/0042 ,  H04L5/0044 ,  H04L5/006

    摘要： A method of transmitting channel quality indicator (CQI) includes obtaining CQI of each, of the plurality of sub-bands, selecting a first sub-band having the best CQI of the plurality of sub- bands, transmitting the best CQI of the first sub-band at a first transmission cycle and transmitting a difference value between the best CQI of the first sub-band and a CQI of the first sub-band at a second transmission cycle. Signalling overhead due to CQI transmission can be reduced.

    摘要翻译： 发送信道质量指示符（CQI）的方法包括获得多个子带中的每一个的CQI，选择具有多个子带中最佳CQI的第一子带，发送第一子带的最佳CQI 在第一传输周期发送第一子带的最佳CQI和第一子带的CQI之间的差值，并以第二传输周期发送。 可以减少由CQI传输引起的信令开销。

    FEEDBACK METHOD FOR PERFORMING A FEEDBACK BY USING A CODEBOOK IN MIMO SYSTEM
    27.
    发明申请
    FEEDBACK METHOD FOR PERFORMING A FEEDBACK BY USING A CODEBOOK IN MIMO SYSTEM 有权
    用于通过在MIMO系统中使用代码来执行反馈的反馈方法

    公开(公告)号：US20090257383A1

    公开(公告)日：2009-10-15

    申请号：US12385363

    申请日：2009-04-06

    申请人： Wook Bong Lee ,  Jin Young CHUN ,  Sung Ho PARK ,  Moon Il Lee ,  Hyun Soo KO ,  Bin Chul IHM

    发明人： Wook Bong Lee ,  Jin Young CHUN ,  Sung Ho PARK ,  Moon Il Lee ,  Hyun Soo KO ,  Bin Chul IHM

    IPC分类号： H04W72/04 ,  H04B7/02

    CPC分类号： H04B7/0417 ,  H04B7/0452 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/065 ,  H04B7/0689

    摘要： A feedback method for performing a feedback by using a codebook in Multiple Input Multiple Output (MIMO) system includes receiving, by the mobile station, a MIMO mode type information, generating feedback information by using the codebook selected according to the MIMO mode type information, and transmitting the feedback information to the base station. The codebook includes a SU-MIMO codebook and a MU-MIMO codebook, and the MU-MIMO codebook is formed by extracting codebook elements from the SU-MIMO codebook. As a result, the method maximizes a system throughput simultaneously while effectively reducing an amount of feedback information.

    摘要翻译： 用于通过使用多输入多输出（MIMO）系统中的码本来执行反馈的反馈方法包括：由移动台接收MIMO模式类型信息，通过使用根据MIMO模式类型信息选择的码本生成反馈信息， 以及将所述反馈信息发送到所述基站。 码本包括SU-MIMO码本和MU-MIMO码本，并且通过从SU-MIMO码本中提取码本元素来形成MU-MIMO码本。 因此，该方法可以同时最大化系统吞吐量，同时有效减少反馈信息的数量。

    Method and apparatus for transmitting a sounding signal in a multiple input multiple output wireless mobile communication system
    29.
    发明授权
    Method and apparatus for transmitting a sounding signal in a multiple input multiple output wireless mobile communication system 有权
    用于在多输入多输出无线移动通信系统中发送探测信号的方法和装置

    公开(公告)号：US08737337B2

    公开(公告)日：2014-05-27

    申请号：US13379576

    申请日：2010-06-30

    申请人： Wook Bong Lee ,  Jin Young Chun ,  Hyun Soo Ko ,  Moon Il Lee ,  Bin Chul Ihm

    发明人： Wook Bong Lee ,  Jin Young Chun ,  Hyun Soo Ko ,  Moon Il Lee ,  Bin Chul Ihm

    IPC分类号： H04W72/04

    CPC分类号： H04B7/0413

    摘要： The present invention relates to transmitting a sounding signal in a multiple input multiple output (MIMO) wireless mobile communication system. According to the present invention, a user equipment that supports a plurality of transmitting antennas receives a plurality of uplink sounding transmission control information elements from a base station. Each of the plurality of uplink sounding transmission control information elements includes respective cyclic period information for periodically repeating sounding signal transmission and respective antenna designation information for designating one or more antennas through which the sounding signal is to be transmitted among a plurality of transmission antennas of the user equipment. The user equipment, then, transmits a sounding signal through selected number of transmission antennas according to the antenna designation information of the uplink sounding transmission control information element having the shortest cycle period among the plurality of uplink sounding transmission control information elements.

    摘要翻译： 本发明涉及在多输入多输出（MIMO）无线移动通信系统中发送探测信号。 根据本发明，支持多个发送天线的用户设备从基站接收多个上行探测发送控制信息要素。 多个上行探测传输控制信息元素中的每一个包括用于周期性地重复发声信号传输的循环周期信息和用于指定要在其中发送探测信号的多个天线中的一个或多个天线的各个天线指定信息 用户设备。 然后，用户设备根据多个上行探测发送控制信息元素中具有最短周期的上行探测发送控制信息元素的天线指示信息，通过选定数量的发送天线发送探测信号。

    Method for transmitting data in multiple antenna system
    30.
    发明授权
    Method for transmitting data in multiple antenna system 有权
    用于在多天线系统中传输数据的方法

    公开(公告)号：US08532217B2

    公开(公告)日：2013-09-10

    申请号：US13462731

    申请日：2012-05-02

    申请人： Hyun Soo Ko ,  Jin Young Chun ,  Moon Il Lee ,  Bin Chul Ihm ,  Wook Bong Lee

    发明人： Hyun Soo Ko ,  Jin Young Chun ,  Moon Il Lee ,  Bin Chul Ihm ,  Wook Bong Lee

    IPC分类号： H04B7/02

    CPC分类号： H04B7/0413

    摘要： A method of sending data in a multiple antenna system includes the steps of generating a transmission signal by applying channel-dependent precoding to a first antenna cluster and a second antenna cluster, each comprising a plurality of antennas, wherein the channel-dependent precoding is performed by a precoding weight matrix in which a precoding weight for each of the antenna clusters has a block diagonal form and the precoding weight is represented by P×V for a number of transmission antennas P, included in each of the antenna clusters, and a number of layers V applied to each of the antenna clusters (P and V are an integer greater than 0) and sending the transmission signal.

    摘要翻译： 在多天线系统中发送数据的方法包括以下步骤：通过对第一天线簇和第二天线簇应用与频道相关的预编码来产生发射信号，每个天线簇包括多个天线，其中执行与频道相关的预编码 通过预编码权重矩阵，其中每个天线簇的预编码权重具有块对角线形式，并且对于包括在每个天线簇中的多个发射天线P，并且预编码权重由P×V表示，并且数字 的层V施加到每个天线簇（P和V是大于0的整数）并发送发送信号。