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223 条记录 (耗时 0.041 秒)

    Apparatus and method for transmitting/receiving data in a multi-antenna communication system
    75.
    发明授权
    Apparatus and method for transmitting/receiving data in a multi-antenna communication system 有权
    在多天线通信系统中发送/接收数据的装置和方法

    公开(公告)号：US07697622B2

    公开(公告)日：2010-04-13

    申请号：US11589985

    申请日：2006-10-31

    申请人： Jin-Kyu Han ,  Farooq Khan ,  Hwan-Joon Kwon ,  Ju-Ho Lee ,  Cornelius Van Rensburg ,  Dong-Hee Kim

    发明人： Jin-Kyu Han ,  Farooq Khan ,  Hwan-Joon Kwon ,  Ju-Ho Lee ,  Cornelius Van Rensburg ,  Dong-Hee Kim

    IPC分类号： H04L27/00

    CPC分类号： H04L27/2601 ,  H04B7/0408 ,  H04B7/0669 ,  H04B7/068 ,  H04B7/0691 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0606 ,  H04L1/0618 ,  H04L1/0675

    摘要： An apparatus for transmitting data in a base station of a wireless communication system that transmits data depending on channel status information fed back from terminals and uses a plurality of antennas. Based on the channel status information, a scheduler determines a terminal to which the base station will transmit data, determines antennas via which the base station will transmit data among the plurality of antennas, and determines a space pre-coding method. A multiplexer multiplexes transmission data into a plurality of data streams according to the number of the determined antennas. A modulation and coding unit performs modulation and coding on each of the data streams. A pre-coding controller outputs a matrix select signal for selecting one of a plurality of space pre-coding matrixes according to the space pre-coding method. A space pre-coder spatial-codes each of the coded streams with the matrix selected based on the matrix select signal. An OFDM modulator performs OFDM modulation on each of the spatial-coded streams. An RF unit transmits each of the OFDM-modulated streams via an associated antenna.

    摘要翻译： 一种在根据从终端反馈的信道状态信息发送数据并使用多个天线的无线通信系统的基站中发送数据的装置。 基于信道状态信息，调度器确定基站将发送数据的终端，确定基站将在多个天线之间发送数据的天线，并确定空间预编码方法。 复用器根据确定的天线的数量将传输数据复用到多个数据流中。 调制和编码单元对每个数据流执行调制和编码。 预编码控制器根据空间预编码方法输出用于选择多个空间预编码矩阵之一的矩阵选择信号。 空间预编码器使用基于矩阵选择信号选择的矩阵对每个编码流进行空间编码。 OFDM调制器对每个空间编码流执行OFDM调制。 RF单元经由相关联的天线发送每个OFDM调制的流。

    Method and apparatus for mapping/demapping modulation symbols in a mobile communication system
    78.
    发明授权
    Method and apparatus for mapping/demapping modulation symbols in a mobile communication system 有权
    用于在移动通信系统中映射/解映射调制符号的方法和装置

    公开(公告)号：US08942079B2

    公开(公告)日：2015-01-27

    申请号：US12102390

    申请日：2008-04-14

    申请人： Jin-Kyu Han ,  Ju-Ho Lee ,  Joon-Young Cho ,  Hwan-Joon Kwon

    发明人： Jin-Kyu Han ,  Ju-Ho Lee ,  Joon-Young Cho ,  Hwan-Joon Kwon

    IPC分类号： H04J9/00 ,  H04J1/00 ,  H04K1/10 ,  H04L25/02 ,  H04L5/00

    CPC分类号： H04L25/0226 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/0044 ,  H04L5/0048

    摘要： A method for mapping wireless resources of reference symbols for channel state estimation and modulation symbols for user information transmission in a transmitter of an Orthogonal Frequency Division Multiplexing (OFDM) mobile communication system is disclosed. The mapping method includes channel-encoding and modulating a user information stream to be transmitted, and then generating a systematic symbol stream and a parity symbol stream; and preferentially arranging systematic modulation symbols in resource elements of a symbol including no reference symbol, and then arranging parity modulation symbols in remaining resource elements.

    摘要翻译： 公开了一种在正交频分复用（OFDM）移动通信系统的发射机中映射用于信道状态估计和用于用户信息传输的调制符号的参考符号的无线资源的方法。 映射方法包括对要发送的用户信息流进行信道编码和调制，然后生成系统符号流和奇偶校验符号流; 并且优先在不包括参考符号的符号的资源元素中排列系统调制符号，然后将奇偶校验调制符号设置在剩余的资源元素中。

    Method, apparatus, and system for transmitting and receiving information of an uncoded channel in an orthogonal frequency division multiplexing system
    79.
    发明授权
    Method, apparatus, and system for transmitting and receiving information of an uncoded channel in an orthogonal frequency division multiplexing system 有权
    用于在正交频分复用系统中发送和接收未编码信道的信息的方法，装置和系统

    公开(公告)号：US08520499B2

    公开(公告)日：2013-08-27

    申请号：US11417217

    申请日：2006-05-04

    申请人： Hwan-Joon Kwon ,  Ju-Ho Lee ,  Joon-Young Cho ,  Jin-Kyu Han ,  Dong-Hee Kim ,  Yun-Ok Cho

    发明人： Hwan-Joon Kwon ,  Ju-Ho Lee ,  Joon-Young Cho ,  Jin-Kyu Han ,  Dong-Hee Kim ,  Yun-Ok Cho

    IPC分类号： H04J11/00 ,  H04K1/10 ,  H04L27/28 ,  H04J13/00

    CPC分类号： H04L5/0055 ,  H04J13/0048 ,  H04L1/0014 ,  H04L5/0007 ,  H04L5/0016 ,  H04L5/0044

    摘要： A method, apparatus and system for efficiently transmitting and receiving channels are provided in a wireless communication system based on Orthogonal Frequency Division Multiplexing (OFDM). A multiplexing scheme differs according to a channel when a transmitter transmits a packet data channel, a common control channel and a control channel designated for a particular user. Uncoded 1-bit information is broadly dispersed in frequency and time domains using multiplexing technology for maximizing diversity gain in a channel for transmitting information of at least one bit to a particular user like an acknowledgement (ACK) channel. The transmitter converts a sequence obtained by multiplexing multiple bits to be transmitted to a plurality of users to parallel signals, and broadly disperses the parallel signals in the time and frequency domains. When the uncoded 1-bit information is transmitted, reception reliability is improved because channel coding and transmission are efficiently performed using a small amount of resources.

    摘要翻译： 在基于正交频分复用（OFDM）的无线通信系统中提供用于有效发送和接收信道的方法，装置和系统。 当发射机发送分组数据信道，公共控制信道和为特定用户指定的控制信道时，复用方案根据信道而不同。 使用多路复用技术将未编码的1比特信息广泛地分散在频域和时域中，用于使通道中的分集增益最大化，以将诸如确认（ACK）信道的至少一个比特的信息发送给特定用户。 发送器将通过将要发送的多个比特复用到多个用户获得的序列转换为并行信号，并且在时域和频域中广泛地分散并行信号。 当发送未编码的1比特信息时，由于使用少量资源有效地进行信道编码和发送，所以提高了接收可靠性。