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    COMMUNICATION SYSTEM INCLUDING BASE STATIONS AND TERMINAL FOR MULTI-CELL COOPERATIVE COMMUNICATION
    1.
    发明申请
    COMMUNICATION SYSTEM INCLUDING BASE STATIONS AND TERMINAL FOR MULTI-CELL COOPERATIVE COMMUNICATION 有权
    通信系统，包括基站和终端用于多小区协同通信

    公开(公告)号：US20110151918A1

    公开(公告)日：2011-06-23

    申请号：US13059903

    申请日：2009-08-14

    申请人： Bangwon Seo ,  Young Jo Ko ,  Jae Young Ahn

    发明人： Bangwon Seo ,  Young Jo Ko ,  Jae Young Ahn

    IPC分类号： H04B7/26

    CPC分类号： H04B7/024 ,  H04B7/0413 ,  H04B7/0426 ,  H04B7/0617 ,  H04B7/0639 ,  H04B7/0671

    摘要： Provided is a communication system for a multi-cell cooperative communication. A serving base station and at least one neighboring base station may communicate with at least one terminal through mutual cooperation. Each of the serving base station and the at least one neighboring base station may shift a phase of at least one element among elements included in a precoding matrix, using a phase shift matrix, and precode at least one data symbol. A terminal may feed back preferred phase shift matrix information to the serving base station, so that the serving base station and the at least one neighboring base station may adaptively determine a phase shift matrix. The terminal may calculate the phase shift matrix with small calculation amounts. The serving base station, the at least one neighboring base station, and the terminal may pre-store a plurality of candidate matrices with respect to the phase shift matrix.

    摘要翻译： 提供了一种用于多小区协作通信的通信系统。 服务基站和至少一个相邻基站可以通过相互协作与至少一个终端进行通信。 服务基站和至少一个相邻基站中的每个可以使用相移矩阵来移位包括在预编码矩阵中的元素中的至少一个元素的相位，并且对至少一个数据符号进行预编码。 终端可以将优选的相移矩阵信息反馈到服务基站，使得服务基站和至少一个相邻基站可以自适应地确定相移矩阵。 终端可以以较小的计算量计算相移矩阵。 服务基站，至少一个相邻基站和终端可以相对于相移矩阵预存储多个候选矩阵。

    Communication system including base stations and terminal for multi-cell cooperative communication
    2.
    发明授权
    Communication system including base stations and terminal for multi-cell cooperative communication 有权
    通信系统包括基站和终端用于多小区协作通信

    公开(公告)号：US08660601B2

    公开(公告)日：2014-02-25

    申请号：US13059903

    申请日：2009-08-14

    申请人： Bangwon Seo ,  Young Jo Ko ,  Jae Young Ahn

    发明人： Bangwon Seo ,  Young Jo Ko ,  Jae Young Ahn

    IPC分类号： H04B7/00 ,  H04B1/00

    CPC分类号： H04B7/024 ,  H04B7/0413 ,  H04B7/0426 ,  H04B7/0617 ,  H04B7/0639 ,  H04B7/0671

    摘要： Provided is a communication system for a multi-cell cooperative communication. A serving base station and at least one neighboring base station may communicate with at least one terminal through mutual cooperation. Each of the serving base station and the at least one neighboring base station may shift a phase of at least one element among elements included in a precoding matrix, using a phase shift matrix, and precode at least one data symbol. A terminal may feed back preferred phase shift matrix information to the serving base station, so that the serving base station and the at least one neighboring base station may adaptively determine a phase shift matrix. The terminal may calculate the phase shift matrix with small calculation amounts. The serving base station, the at least one neighboring base station, and the terminal may pre-store a plurality of candidate matrices with respect to the phase shift matrix.

    摘要翻译： 提供了一种用于多小区协作通信的通信系统。 服务基站和至少一个相邻基站可以通过相互协作与至少一个终端进行通信。 服务基站和至少一个相邻基站中的每个可以使用相移矩阵来移位包括在预编码矩阵中的元素中的至少一个元素的相位，并且对至少一个数据符号进行预编码。 终端可以将优选的相移矩阵信息反馈到服务基站，使得服务基站和至少一个相邻基站可以自适应地确定相移矩阵。 终端可以以较小的计算量计算相移矩阵。 服务基站，至少一个相邻基站和终端可以相对于相移矩阵预存储多个候选矩阵。

    Precoding matrix design method for multiple base station using MIMO technique
    4.
    发明授权
    Precoding matrix design method for multiple base station using MIMO technique 有权
    使用MIMO技术的多基站的预编码矩阵设计方法

    公开(公告)号：US08565333B2

    公开(公告)日：2013-10-22

    申请号：US13058593

    申请日：2009-08-10

    申请人： Bangwon Seo ,  Young Jo Ko ,  Jae Young Ahn

    发明人： Bangwon Seo ,  Young Jo Ko ,  Jae Young Ahn

    IPC分类号： H04B7/02 ,  H04L1/02

    CPC分类号： H04B7/024

    摘要： Provided is a precoding matrix design method for a cooperative communication of multiple base stations in a multiple input multiple output (MIMO) communication system. A method of designing a precoding matrix in a base station of the MIMO communication system may include: determining whether to use a cooperative communication; verifying a cooperative base station when the cooperative communication is determined to be used; selecting a precoding matrix to be applied by a home base station and the cooperative base station; and requesting the home base station and the cooperative base station for the cooperative communication using the selected precoding matrix.

    摘要翻译： 提供了一种用于多输入多输出（MIMO）通信系统中的多个基站的协作通信的预编码矩阵设计方法。 在MIMO通信系统的基站中设计预编码矩阵的方法可以包括：确定是否使用协作通信; 在确定使用协作通信时验证协作基站; 选择由家庭基站和协作基站应用的预编码矩阵; 以及使用所选择的预编码矩阵来请求所述家庭基站和所述协作基站进行协作通信。

    METHOD FOR GENERATING AND TRANSMITTING A REFERENCE SIGNAL FOR UPLINK DEMODULATION IN A CLUSTERED DFT-SPREAD OFDM TRANSMISSION SCHEME
    5.
    发明申请
    METHOD FOR GENERATING AND TRANSMITTING A REFERENCE SIGNAL FOR UPLINK DEMODULATION IN A CLUSTERED DFT-SPREAD OFDM TRANSMISSION SCHEME 有权
    用于生成和发送用于聚集的DFT-SPREAD OFDM传输方案中的上行链路解调的参考信号的方法

    公开(公告)号：US20120269285A1

    公开(公告)日：2012-10-25

    申请号：US13387016

    申请日：2010-09-17

    申请人： Byung Jang Jeong ,  Young Jo Ko ,  Bangwon Seo ,  Jae Young Ahn

    发明人： Byung Jang Jeong ,  Young Jo Ko ,  Bangwon Seo ,  Jae Young Ahn

    IPC分类号： H04L27/00

    CPC分类号： H04L5/0048 ,  H04L5/0007 ,  H04L27/2607 ,  H04L27/265 ,  H04W72/0413

    摘要： Disclosed is a method for generating and transmitting a reference signal in a clustered DFT-spread OFDM transmission scheme. A method for generating and transmitting a DM-RS in a clustered DFT-spread-OFDM scheme comprises: a step of generating DM-RS sequences corresponding to the number of clusters allocated for an uplink transmission; and a step of mapping the generated DM-RS sequences to the relevant DM-RS symbol positions for each cluster. Accordingly, the method for generating and transmitting a reference signal according to the present invention, in which DM-RS sequences are allocated and transmitted on a cluster basis, uses a complete DM-RS sequence for each cluster, and therefore inter-cell interference can be weakened, and problems which might occur when applied to a multi-user MIMO (MU-MIMO) scheme can be solved.

    摘要翻译： 公开了一种用于在聚集的DFT扩展OFDM传输方案中产生和发送参考信号的方法。 一种用于在聚簇DFT扩展OFDM方案中产生和发送DM-RS的方法包括：产生对应于为上行链路传输分配的簇数量的DM-RS序列的步骤; 以及将生成的DM-RS序列映射到每个簇的相关DM-RS符号位置的步骤。 因此，根据本发明的基于簇分配和发送DM-RS序列的参考信号的生成和发送方法对于每个簇使用完整的DM-RS序列，因此小区间干扰可以 被削弱，并且可以解决当应用于多用户MIMO（MU-MIMO）方案时可能出现的问题。

    PRECODING MATRIX DESIGN METHOD FOR MULTIPLE BASE STATION USING MIMO TECHNIQUE
    6.
    发明申请
    PRECODING MATRIX DESIGN METHOD FOR MULTIPLE BASE STATION USING MIMO TECHNIQUE 有权
    使用MIMO技术预测多基站的矩阵设计方法

    公开(公告)号：US20110135024A1

    公开(公告)日：2011-06-09

    申请号：US13058593

    申请日：2009-08-10

    申请人： Bangwon Seo ,  Young Jo Ko ,  Jae Young Ahn

    发明人： Bangwon Seo ,  Young Jo Ko ,  Jae Young Ahn

    IPC分类号： H04L27/28

    CPC分类号： H04B7/024

    摘要： Provided is a precoding matrix design method for a cooperative communication of multiple base stations in a multiple input multiple output (MIMO) communication system. A method of designing a precoding matrix in a base station of the MIMO communication system may include: determining whether to use a cooperative communication; verifying a cooperative base station when the cooperative communication is determined to be used; selecting a precoding matrix to be applied by a home base station and the cooperative base station; and requesting the home base station and the cooperative base station for the cooperative communication using the selected precoding matrix.

    摘要翻译： 提供了一种用于多输入多输出（MIMO）通信系统中的多个基站的协作通信的预编码矩阵设计方法。 在MIMO通信系统的基站中设计预编码矩阵的方法可以包括：确定是否使用协作通信; 在确定使用协作通信时验证协作基站; 选择由家庭基站和协作基站应用的预编码矩阵; 以及使用所选择的预编码矩阵来请求所述家庭基站和所述协作基站进行协作通信。

    Cooperative communication method in cellular wireless communication system and terminal for performing the method
    7.
    发明授权
    Cooperative communication method in cellular wireless communication system and terminal for performing the method 有权
    蜂窝无线通信系统和终端中的协作通信方法

    公开(公告)号：US09160426B2

    公开(公告)日：2015-10-13

    申请号：US13260874

    申请日：2010-04-22

    申请人： Young-Jo Ko ,  Jae Young Ahn ,  Bangwon Seo

    发明人： Young-Jo Ko ,  Jae Young Ahn ,  Bangwon Seo

    IPC分类号： H04W4/00 ,  H04B7/02 ,  H04L5/00 ,  H04B7/04 ,  H04B7/06

    CPC分类号： H04B7/024 ,  H04B7/0417 ,  H04B7/0626 ,  H04L5/0035 ,  H04W72/1289

    摘要： Provided is a coordinated communication method in which a plurality of cells cooperate to perform multi-antenna transmission and reception in a cellular wireless communication system. A terminal wirelessly transmits channel state information (CSI) feedback to a serving cell and at least one coordinating cell. The serving cell and the coordinating cell perform multi-point coordinated communication using the CSI feedback. Even if the serving cell and the coordinating cell belong to different base stations, information exchange between the cells is minimized, so that a transmission delay and a traffic increment of a backhaul network can be prevented.

    摘要翻译： 提供了一种协作通信方法，其中多个小区协作以在蜂窝无线通信系统中执行多天线发送和接收。 终端向服务小区和至少一个协调小区无线地发送信道状态信息（CSI）反馈。 服务小区和协调小区使用CSI反馈进行多点协调通信。 即使服务小区和协调小区属于不同的基站，小区之间的信息交换被最小化，从而可以防止回传网络的传输延迟和业务增量。

    Method for generating and transmitting a reference signal for uplink demodulation in a clustered DFT-spread OFDM transmission scheme
    8.
    发明授权
    Method for generating and transmitting a reference signal for uplink demodulation in a clustered DFT-spread OFDM transmission scheme 有权
    用于在聚集的DFT扩展OFDM传输方案中生成和发送用于上行链路解调的参考信号的方法

    公开(公告)号：US08705644B2

    公开(公告)日：2014-04-22

    申请号：US13387016

    申请日：2010-09-17

    申请人： Byung Jang Jeong ,  Young Jo Ko ,  Bangwon Seo ,  Jae Young Ahn

    发明人： Byung Jang Jeong ,  Young Jo Ko ,  Bangwon Seo ,  Jae Young Ahn

    IPC分类号： H04L27/28

    CPC分类号： H04L5/0048 ,  H04L5/0007 ,  H04L27/2607 ,  H04L27/265 ,  H04W72/0413

    摘要： Disclosed is a method for generating and transmitting a reference signal in a clustered DFT-spread OFDM transmission scheme. A method for generating and transmitting a DM-RS in a clustered DFT-spread-OFDM scheme comprises: a step of generating DM-RS sequences corresponding to the number of clusters allocated for an uplink transmission; and a step of mapping the generated DM-RS sequences to the relevant DM-RS symbol positions for each cluster. Accordingly, the method for generating and transmitting a reference signal according to the present invention, in which DM-RS sequences are allocated and transmitted on a cluster basis, uses a complete DM-RS sequence for each cluster, and therefore inter-cell interference can be weakened, and problems which might occur when applied to a multi-user MIMO (MU-MIMO) scheme can be solved.

    摘要翻译： 公开了一种用于在聚集的DFT扩展OFDM传输方案中产生和发送参考信号的方法。 一种用于在聚簇DFT扩展OFDM方案中产生和发送DM-RS的方法包括：产生对应于为上行链路传输分配的簇数量的DM-RS序列的步骤; 以及将生成的DM-RS序列映射到每个簇的相关DM-RS符号位置的步骤。 因此，根据本发明的基于簇分配和发送DM-RS序列的参考信号的生成和发送方法对于每个簇使用完整的DM-RS序列，因此小区间干扰可以 被削弱，并且可以解决当应用于多用户MIMO（MU-MIMO）方案时可能出现的问题。

    Method for transmitting dedicated reference signal, and method for receiving dedicated reference signal
    10.
    发明授权
    Method for transmitting dedicated reference signal, and method for receiving dedicated reference signal 有权
    用于发送专用参考信号的方法，以及用于接收专用参考信号的方法

    公开(公告)号：US08983479B2

    公开(公告)日：2015-03-17

    申请号：US12769215

    申请日：2010-04-28

    申请人： Young-Jo Ko ,  Jae Young Ahn ,  Bangwon Seo

    发明人： Young-Jo Ko ,  Jae Young Ahn ,  Bangwon Seo

    IPC分类号： H04W72/12 ,  H04B7/04 ,  H04B7/02 ,  H04L5/00 ,  H04B7/06

    CPC分类号： H04B7/0452 ,  H04B7/022 ,  H04B7/024 ,  H04B7/0639 ,  H04L5/0023 ,  H04L5/0051 ,  H04W72/1231

    摘要： Provided are a method of transmitting a dedicated reference signal (DRS), a method of receiving a DRS, and a feedback method of a terminal. The method of transmitting a DRS includes determining a DRS transmitting resource for at least one terminal which is a target of transmission, and transmitting the DRS using the determined transmission resource and notifying the terminal of information about layer used by the terminal. The method of receiving a DRS includes determining a DRS receiving resource, receiving information about layer used by a terminal from a serving cell base station, and receiving the DRS for the terminal using the determined reception resource and the information about layer. Accordingly, a terminal can find the position and sequence of its DRS. In particular, in the case of multi-user multiple input multiple output (MU-MIMO) or joint scheduling, it is possible to prevent or remove signal interference using the DRS of another terminal.

    摘要翻译： 提供了发送专用参考信号（DRS），接收DRS的方法和终端的反馈方法的方法。 发送DRS的方法包括确定作为传输对象的至少一个终端的DRS发送资源，以及使用所确定的传输资源发送DRS，并向终端通知关于终端使用的层的信息。 接收DRS的方法包括确定DRS接收资源，从服务小区基站接收终端使用的层的信息，以及使用所确定的接收资源和关于层的信息来接收终端的DRS。 因此，终端可以找到其DRS的位置和顺序。 特别地，在多用户多输入多输出（MU-MIMO）或联合调度的情况下，可以使用另一终端的DRS来防止或消除信号干扰。