利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

21 条记录 (耗时 0.034 秒)

    Method and apparatus for downlink transmission based on MIMO precoding in wireless communication system employing distributed antenna systems
    2.
    发明授权
    Method and apparatus for downlink transmission based on MIMO precoding in wireless communication system employing distributed antenna systems 有权
    基于采用分布式天线系统的无线通信系统中基于MIMO预编码的下行链路传输的方法和装置

    公开(公告)号：US08724607B2

    公开(公告)日：2014-05-13

    申请号：US13371935

    申请日：2012-02-13

    申请人： Jin Kyu Han ,  Cheol Mun ,  Sung Tae Kim ,  Youn Sun Kim ,  Jong Kwan Yook

    发明人： Jin Kyu Han ,  Cheol Mun ,  Sung Tae Kim ,  Youn Sun Kim ,  Jong Kwan Yook

    IPC分类号： H04B7/216

    CPC分类号： H04B7/0689 ,  H04B7/024 ,  H04B7/0417 ,  H04B7/0482 ,  H04B7/063

    摘要： A transmission method and apparatus utilizing Multiple-Input and Multiple-Output (MIMO) precoding based on Distributed Antenna Systems (DASs) are provided. The transmission method includes determining active antenna ports, for a User Equipment (UE) having multiple receive antennas, from among a plurality of Distributed Antenna Ports (DAPs) evenly placed in a service area; assigning a Multiple-Input and Multiple-Output (MIMO) mode to the UE and notifying the UE of the MIMO mode assignment; determining a signal precoding vector on a basis of feedback information for the MIMO mode received from the UE; and precoding a signal using the signal precoding vector and transmitting the precoded signal through the active antenna ports.

    摘要翻译： 提供了一种利用基于分布式天线系统（DAS）的多输入多输出（MIMO）预编码的传输方法和装置。 传输方法包括从均匀放置在服务区域中的多个分布式天线端口（DAP）中确定用于具有多个接收天线的用户设备（UE）的有源天线端口; 向所述UE分配多输入多输出（MIMO）模式，并向所述UE通知所述MIMO模式分配; 基于从UE接收的MIMO模式的反馈信息，确定信号预编码矢量; 并使用信号预编码矢量对信号进行预编码，并通过有源天线端口发送预编码信号。

    Apparatus and method for transmitting a data stream in a wireless communication system with multiple antennas
    3.
    发明申请
    Apparatus and method for transmitting a data stream in a wireless communication system with multiple antennas 有权
    用于在具有多个天线的无线通信系统中发送数据流的装置和方法

    公开(公告)号：US20060023624A1

    公开(公告)日：2006-02-02

    申请号：US11190003

    申请日：2005-07-27

    申请人： Jin-Kyu Han ,  Dae-Gyun Kim ,  Hwan-Joon Kwon ,  Dong-Hee Kim ,  Youn-Sun Kim ,  Han-Kyu Park ,  Cheol Mun ,  Myoung-Won Lee

    发明人： Jin-Kyu Han ,  Dae-Gyun Kim ,  Hwan-Joon Kwon ,  Dong-Hee Kim ,  Youn-Sun Kim ,  Han-Kyu Park ,  Cheol Mun ,  Myoung-Won Lee

    IPC分类号： H04L5/04

    CPC分类号： H04W52/346 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0656 ,  H04W52/42

    摘要： An apparatus and method for determining a transmission unit for data stream transmission in a wireless communication system in which multiple transmission and reception antennas are used and a receiver provides information on a data stream to be transmitted through a transmission unit. A fading estimator calculates fading values from the multiple transmission antennas to the multiple reception antennas. A channel quality estimator reverse-orders combined weights for multiple transmission units based on the fading values from the multiple transmission antennas to the multiple reception antennas, successively selects transmission units for data stream transmission among the reverse-ordered transmission units, determines a modulation and coding scheme (MCS) for each of the selected transmission units, and feeds back the MCS to a transmitter.

    摘要翻译： 一种用于在使用多个发送和接收天线的无线通信系统中确定用于数据流传输的传输单元的装置和方法，并且接收机提供关于要通过传输单元传输的数据流的信息。 衰落估计器计算从多个发射天线到多个接收天线的衰落值。 信道质量估计器基于从多个发送天线到多个接收天线的衰落值对多个传输单元的组合权重进行反向顺序，连续地选择反向有序传输单元之间的数据流传输的传输单元，确定调制和编码 方案（MCS），并将MCS反馈给发射机。

    Apparatus and method for transmitting a data stream in a wireless communication system with multiple antennas
    7.
    发明授权
    Apparatus and method for transmitting a data stream in a wireless communication system with multiple antennas 有权
    用于在具有多个天线的无线通信系统中发送数据流的装置和方法

    公开(公告)号：US07876848B2

    公开(公告)日：2011-01-25

    申请号：US11190003

    申请日：2005-07-27

    申请人： Jin-Kyu Han ,  Dae-Gyun Kim ,  Hwan-Joon Kwon ,  Dong-Hee Kim ,  Youn-Sun Kim ,  Han-Kyu Park ,  Cheol Mun ,  Myoung-Won Lee

    发明人： Jin-Kyu Han ,  Dae-Gyun Kim ,  Hwan-Joon Kwon ,  Dong-Hee Kim ,  Youn-Sun Kim ,  Han-Kyu Park ,  Cheol Mun ,  Myoung-Won Lee

    IPC分类号： H04B7/02

    CPC分类号： H04W52/346 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0656 ,  H04W52/42

    摘要： An apparatus and method for determining a transmission unit for data stream transmission in a wireless communication system in which multiple transmission and reception antennas are used and a receiver provides information on a data stream to be transmitted through a transmission unit. A fading estimator calculates fading values from the multiple transmission antennas to the multiple reception antennas. A channel quality estimator reverse-orders combined weights for multiple transmission units based on the fading values from the multiple transmission antennas to the multiple reception antennas, successively selects transmission units for data stream transmission among the reverse-ordered transmission units, determines a modulation and coding scheme (MCS) for each of the selected transmission units, and feeds back the MCS to a transmitter.

    摘要翻译： 一种用于在使用多个发送和接收天线的无线通信系统中确定用于数据流传输的传输单元的装置和方法，并且接收机提供关于要通过传输单元传输的数据流的信息。 衰落估计器计算从多个发射天线到多个接收天线的衰落值。 信道质量估计器基于从多个发送天线到多个接收天线的衰落值对多个传输单元的组合权重进行反向顺序，连续地选择反向有序传输单元之间的数据流传输的传输单元，确定调制和编码 方案（MCS），并将MCS反馈给发射机。