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    • 3. 发明申请
    • APPARATUS AND METHOD FOR DATA TRANSMISSION USING TRANSMIT DIVERSITY IN SC-FDMA SYSTEM
    • 在SC-FDMA系统中使用传输多样性的数据传输的装置和方法
    • WO2009157734A2
    • 2009-12-30
    • PCT/KR2009/003466
    • 2009-06-26
    • LG ELECTRONICS INC.KO, Hyun SooHAN, Seung HeeCHUNG, Jae HoonIHM, Bin ChulLEE, Moon Il
    • KO, Hyun SooHAN, Seung HeeCHUNG, Jae HoonIHM, Bin ChulLEE, Moon Il
    • H04B7/02H04B7/208H04L27/26
    • H04B7/0669H04L1/0625H04L5/0023H04L5/0042H04L27/2615
    • An apparatus for data transmission is provided. The apparatus includes a data processor encoding an information bit and generating a modulation symbol by performing constellation mapping on the encoded information bit, a discrete Fourier transform (DFT) unit performing DFT on the modulation symbol to generate a frequency-domain symbol, a space time block coding (STBC) processor performing STBC on the frequency-domain symbol to generate an STBC code consisting of 1st and 2nd STBC streams, a subcarrier mapper mapping the 1st STBC stream to a 1st subcarrier and mapping the 2nd STBC stream to a 2nd subcarrier, an inverse fast Fourier transform (IFFT) unit performing IFFT on the 1st subcarrier to generate a 1st single carrier-frequency division multiple access (SC-FDMA) symbol and performing IFFT on the 2nd subcarrier to generate a 2nd SC-FDMA symbol, and a plurality of transmit antennas transmitting the 1st and 2nd SC-FDMA symbols. STBC is effectively applied to a SC-FDMA system to decrease a peak-to-average power ratio (PAPR) and to maintain a single-carrier property.
    • 提供了一种用于数据传输的装置。 该装置包括:编码信息比特的数据处理器,并通过对编码信息比特执行星座映射来产生调制符号;对调制符号执行DFT的离散傅立叶变换(DFT)单元,生成频域符号,空时 块编码(STBC)处理器在频域符号上执行STBC以产生由第一和第二STBC流组成的STBC码,将第一STBC流映射到第一副载波并将第二STBC流映射到第二副载波的子载波映射器, 在第一子载波上执行IFFT的逆快速傅立叶变换(IFFT)单元,以产生第一单载波频分多址(SC-FDMA)符号,并在第二副载波上执行IFFT以产生第二SC-FDMA符号,以及 多个发送天线发送第一和第二SC-FDMA符号。 STBC有效地应用于SC-FDMA系统以降低峰均功率比(PAPR)并保持单载波特性。
    • 7. 发明申请
    • METHOD AND APPARATUS FOR TRANSMITTING DOWNLINK SIGNAL IN A MIMO WIRELESS COMMUNICAITON SYSTEM
    • 用于在MIMO无线通信系统中发送下行链路信号的方法和设备
    • WO2011031019A3
    • 2011-03-17
    • PCT/KR2010/005625
    • 2010-08-24
    • LG ELECTRONICS INC.KO, Hyun SooLEE, Moon IlKOO, Ja HoCHUNG, Jae HoonIHM, Bin Chul
    • KO, Hyun SooLEE, Moon IlKOO, Ja HoCHUNG, Jae HoonIHM, Bin Chul
    • H04B7/04
    • A method and apparatus for transmitting a downlink signal in a multiple input multiple output (MIMO) wireless communication system is disclosed. A method for receiving a downlink signal from a base station to a user equipment in a multiple input multiple output (MIMO) system, which supports dual layer transmission based on first and second antenna ports, comprises receiving downlink control information (DCI) through a downlink control channel; and receiving downlink data through a downlink data channel, the downlink data including one or more of a first transport block and a second transport block, wherein the downlink control information includes a new data indicator (NDI) for each of the first and second transport blocks, and if the first transport block is disabled and the second transport block is enabled, the new data indicator for the first transport block indicates an antenna port through which the second transport block is received.
    • 公开了一种用于在多输入多输出(MIMO)无线通信系统中发送下行链路信号的方法和设备。 一种用于在支持基于第一和第二天线端口的双层传输的多输入多输出(MIMO)系统中从基站接收到用户设备的下行链路信号的方法,包括:通过下行链路接收下行链路控制信息(DCI) 控制通道; 以及通过下行链路数据信道接收下行链路数据,所述下行链路数据包括第一传输块和第二传输块中的一个或多个,其中所述下行链路控制信息包括用于所述第一和第二传输块中的每一个的新数据指示符(NDI) ,并且如果第一传输块被禁用并且第二传输块被启用,则第一传输块的新数据指示符指示通过其接收第二传输块的天线端口。