PRECODING APPARATUS AND METHOD IN A WIRELESS COMMUNICATION SYSTEM USING MULTIPLE INPUT MULTIPLE OUTPUT
    1.
    发明申请
    PRECODING APPARATUS AND METHOD IN A WIRELESS COMMUNICATION SYSTEM USING MULTIPLE INPUT MULTIPLE OUTPUT 有权
    使用多路输入多路输出的无线通信系统中的预编码装置和方法

    公开(公告)号:US20080240274A1

    公开(公告)日:2008-10-02

    申请号:US12055811

    申请日:2008-03-26

    IPC分类号: H04L27/28

    摘要: A transmission apparatus in a Multiple Input Multiple Output (MIMO)-based wireless communication system. The transmission apparatus includes at least two antenna groups each having at least two antennas, wherein the antenna groups are spaced apart by a first distance and transmit antennas in each antenna group are spaced apart by a second distance which is shorter than the first distance. A channel coding and modulation unit channel-codes and modulates a desired transmission data stream. A precoding unit precodes the channel-coded and modulated signal separately for each antenna group and each antenna in the same antenna group. Thereafter, a transmission processing unit transmission-processes the output signal from the precoding unit.

    摘要翻译: 一种基于多输入多输出(MIMO)的无线通信系统中的传输装置。 发送装置包括至少两个天线组,每个天线组具有至少两个天线,其中天线组间隔开第一距离,并且每个天线组中的发射天线间隔开比第一距离短的第二距离。 信道编码和调制单元对所需的传输数据流进行信道编码和调制。 预编码单元对于同一天线组中的每个天线组和每个天线分别对信道编码和调制信号进行预编码。 此后,发送处理单元发送 - 处理来自预编码单元的输出信号。

    Precoding apparatus and method in a wireless communication system using multiple input multiple output
    2.
    发明授权
    Precoding apparatus and method in a wireless communication system using multiple input multiple output 有权
    一种使用多输入多输出的无线通信系统中的预编码装置和方法

    公开(公告)号:US08576937B2

    公开(公告)日:2013-11-05

    申请号:US12055811

    申请日:2008-03-26

    IPC分类号: H04B7/02 H04L1/02

    摘要: A transmission apparatus in a Multiple Input Multiple Output (MIMO)-based wireless communication system. The transmission apparatus includes at least two antenna groups each having at least two antennas, wherein the antenna groups are spaced apart by a first distance and transmit antennas in each antenna group are spaced apart by a second distance which is shorter than the first distance. A channel coding and modulation unit channel-codes and modulates a desired transmission data stream. A precoding unit precodes the channel-coded and modulated signal separately for each antenna group and each antenna in the same antenna group. Thereafter, a transmission processing unit transmission-processes the output signal from the precoding unit.

    摘要翻译: 一种基于多输入多输出(MIMO)的无线通信系统中的传输装置。 发送装置包括至少两个天线组,每个天线组具有至少两个天线,其中天线组间隔开第一距离,并且每个天线组中的发射天线间隔开比第一距离短的第二距离。 信道编码和调制单元对所需的传输数据流进行信道编码和调制。 预编码单元对于同一天线组中的每个天线组和每个天线分别对信道编码和调制信号进行预编码。 此后,发送处理单元发送 - 处理来自预编码单元的输出信号。

    Method and apparatus for mapping/demapping modulation symbols in a mobile communication system
    4.
    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

    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
    5.
    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

    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。

    Frequency hopping method and apparatus in a wireless communication system
    10.
    发明授权
    Frequency hopping method and apparatus in a wireless communication system 有权
    无线通信系统中的跳频方法和装置

    公开(公告)号:US07990928B2

    公开(公告)日:2011-08-02

    申请号:US11788900

    申请日:2007-04-23

    IPC分类号: H04B7/216

    摘要: A method for supporting frequency hopping of a transmission apparatus by a reception apparatus in a wireless communication system supporting Hybrid Automatic Repeat reQuest (HARQ). The method includes determining whether a particular transmission apparatus has a need to perform hopping of allocating a different logical channel every Transmission Time Interval (TTI); and when there is no need to perform hopping every TTI, sending to the transmission apparatus a command to perform hopping every multiple TTIs, and simultaneously signaling information on a number of the multiple TTIs.

    摘要翻译: 一种用于在支持混合自动重传请求(HARQ)的无线通信系统中由接收装置支持发送装置的跳频的方法。 该方法包括确定特定传输设备是否需要执行每个传输时间间隔(TTI)分配不同逻辑信道的跳频; 并且当不需要每TTI执行跳频时,向发送装置发送每多个TTI执行跳频的命令,并且同时发送关于多个TTI的数量的信息。