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    Modulator and modulation method
    21.
    发明授权
    Modulator and modulation method 有权
    调制方式和调制方式

    公开(公告)号：US08453042B2

    公开(公告)日：2013-05-28

    申请号：US13493721

    申请日：2012-06-11

    Applicant: Yutaka Murakami ,  Shutai Okamura ,  Kiyotaka Kobayashi ,  Masayuki Orihashi

    Inventor： Yutaka Murakami ,  Shutai Okamura ,  Kiyotaka Kobayashi ,  Masayuki Orihashi

    IPC: G06F11/00 ,  H03M13/00

    CPC classification number: H04L1/0041 ,  H03M13/13 ,  H03M13/255 ,  H03M13/2721 ,  H03M13/2909 ,  H04L1/0003 ,  H04L1/0057 ,  H04L1/0071 ,  H04L1/0656 ,  H04L5/0023

    Abstract: A transmitter apparatus wherein a relatively simple structure is used to suppress burst errors without changing the block sizes of encoded blocks even when the number of modulation multi-values is increased. An encoding part subjects transport data to a block encoding process to form block encoded data. A modulating part modulates the block encoded data to form data symbols; and an arranging (interleaving) part arranges (interleaves) the block encoded data in such a manner that the intra-block encoded data of the encoded blocks, which include their respective single different data symbol, get together, and then supplies the arranged (interleaved) block encoded data to the modulating part. In this way, there can be provided a transmitter apparatus wherein a relatively simple structure is used to suppress burst errors without changing the block sizes of encoded blocks even when the number of modulation multi-values is increased.

    Abstract translation: 一种发射机装置，即使当调制多值的数量增加时，使用相对简单的结构来抑制突发错误，而不改变编码块的块大小。 编码部分将传输数据转移到块编码处理以形成块编码数据。 调制部分调制块编码数据以形成数据符号; 并且排列（交织）部分以这样的方式布置（交织）块编码数据，使得包括它们各自的单个不同数据符号的编码块的块内编码数据在一起，然后提供所安排的（交织的 ）块编码数据到调制部分。 以这种方式，可以提供一种发射机装置，即使当调制多值的数量增加时，使用相对简单的结构来抑制突发错误，而不改变编码块的块大小。

    Apparatus and method for adaptively modulating signal by using layered time-space detector used in MIMO system
    22.
    再颁专利
    Apparatus and method for adaptively modulating signal by using layered time-space detector used in MIMO system 有权
    利用MIMO系统中分层时空检测器对信号进行自适应调制的装置和方法

    公开(公告)号：USRE44092E1

    公开(公告)日：2013-03-19

    申请号：US12949425

    申请日：2010-11-18

    Applicant: Young-Doo Kim ,  Inhyoung Kim ,  Heejung Yu ,  Jihoon Choi ,  Taehyun Jeon ,  Jae-Young Ahn ,  Yong-Hoon Lee

    Inventor： Young-Doo Kim ,  Inhyoung Kim ,  Heejung Yu ,  Jihoon Choi ,  Taehyun Jeon ,  Jae-Young Ahn ,  Yong-Hoon Lee

    IPC: H04B7/02

    CPC classification number: H04B7/0891 ,  H04B7/0417 ,  H04B7/0626 ,  H04B7/0697 ,  H04L1/0003 ,  H04L1/0656 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0028 ,  H04L5/0046 ,  H04L5/006 ,  H04W52/42

    Abstract: An apparatus for adaptively modulating/demodulating signals in a multi-input multi-output (MIMO) system having a layered time-space architecture detector and a method thereof is disclosed. The apparatus includes: a bit and power allocation information calculator for deciding an equivalent channel gain in a reverse order of Vertical-Bell laboratories Space Time (V-BLAST) based on MIMO channel information feedbacked from a receiver and determining the number of bits and transmission power to be transmitted to each transmitting antenna by using the equivalent channel gain; and adaptive modulation means for modulating signal of each layer with corresponding modulation method based on the determined number of bits and transmitting power, controlling the transmitting power and transmitting the adaptively modulated signal through each transmitting antenna. The present invention can improve performance without increase of implementation complexity and easily expand to MIMO-OFDM system by adaptively modulating and demodulating signals in reverse order of conventional V-BLAST detection method.

    Abstract translation: 公开了一种用于在具有分层时空架构检测器及其方法的多输入多输出（MIMO）系统中自适应地调制/解调信号的装置。 该装置包括：位和功率分配信息计算器，用于基于从接收机反馈的MIMO信道信息来确定垂直 - 贝尔实验室空时（V-BLAST）的相反顺序的等效信道增益，并确定比特数和传输次数 通过使用等效信道增益发送到每个发射天线的功率; 以及自适应调制装置，用于根据所确定的比特数和发送功率，通过相应的调制方法对每一层的信号进行调制，控制发送功率，并通过每个发送天线发送自适应调制信号。 本发明可以通过以常规V-BLAST检测方法的相反顺序自适应调制和解调信号，而不增加实现复杂度并且容易地扩展到MIMO-OFDM系统。

    Polarization mode dispersion compensation in multilevel coded-modulation schemes using blast algorithm and iterative polarization cancellation
    23.
    发明授权
    Polarization mode dispersion compensation in multilevel coded-modulation schemes using blast algorithm and iterative polarization cancellation 有权
    使用爆炸算法和迭代偏振消除的多级编码调制方案中的偏振模色散补偿

    公开(公告)号：US08385439B2

    公开(公告)日：2013-02-26

    申请号：US12392294

    申请日：2009-02-25

    Applicant: Ivan B. Djordjevic ,  Lei Xu ,  Ting Wang

    Inventor： Ivan B. Djordjevic ,  Lei Xu ,  Ting Wang

    IPC: H04K1/10 ,  H04K3/00 ,  H04B10/06

    CPC classification number: H04L27/3405 ,  H04B10/2569 ,  H04B10/60 ,  H04B10/697 ,  H04B2210/252 ,  H04L1/005 ,  H04L1/0631 ,  H04L1/0656 ,  H04L5/0023 ,  H04L25/067 ,  H04L27/2649 ,  H04L2025/03426 ,  H04L2025/03611

    Abstract: Receivers and methods are provided for polarization mode dispersion compensation in multi-level coded-modulation schemes using a BLAST algorithm and iterative polarization cancellation. A receiver includes a vertical Bell Laboratories Layered Space-Time Architecture (V-BLAST) orthogonal frequency division multiplexing (OFDM) detector configured to receive input sequences and partially cancel polarization interference with respect to the input sequences to output symbol estimates for the input sequences. The receiver further includes one or more low-density parity-check (LDPC) decoders coupled to the V-BLAST OFDM detector configured to receive channel bit reliabilities and output code words. The channel bit reliabilities are indirectly calculated from the symbol estimates. The one or more LDPC decoders iteratively provide extrinsic soft information feedback to the V-BLAST OFDM detector to compensate for the polarization interference.

    Abstract translation: 为使用BLAST算法和迭代偏振消除的多电平编码调制方案中的偏振模色散补偿提供接收机和方法。 接收机包括垂直的贝尔实验室分层时空架构（V-BLAST）正交频分复用（OFDM）检测器，其被配置为接收输入序列并部分地消除相对于输入序列的偏振干扰，以输出输入序列的符号估计。 接收机还包括耦合到V-BLAST OFDM检测器的一个或多个低密度奇偶校验（LDPC）解码器，被配置为接收信道位可靠性和输出码字。 信道位可靠性是从符号估计中间接计算的。 一个或多个LDPC解码器向V-BLAST OFDM检测器反复地提供外在的软信息反馈以补偿极化干扰。

    MULTI-SITE MIMO COOPERATION IN CELLULAR NETWORK
    25.
    发明申请
    MULTI-SITE MIMO COOPERATION IN CELLULAR NETWORK 有权
    细胞网络中的多场MIMO合作

    公开(公告)号：US20130016662A1

    公开(公告)日：2013-01-17

    申请号：US13620445

    申请日：2012-09-14

    Applicant: Mohammadhadi Baligh ,  Jiangei Ma ,  Hua Xu

    Inventor： Mohammadhadi Baligh ,  Jiangei Ma ,  Hua Xu

    IPC: H04W4/00

    CPC classification number: H04B7/024 ,  H04B7/0669 ,  H04B7/0671 ,  H04B7/0689 ,  H04B7/12 ,  H04L1/0026 ,  H04L1/0071 ,  H04L1/0625 ,  H04L1/0656 ,  H04L1/0668 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/003 ,  H04L5/0035 ,  H04W72/1231

    Abstract: In a cellular communications network comprising a plurality of transmitting sites wherein each transmitting site comprises at least one antenna, a method of serving a given data stream to a target-mobile terminal, comprising: designating at least two of the plurality of transmitting sites as cooperating sites; assigning tones to each transmitting site from a sub-band associated with the cooperating sites; dividing the data stream into at least two sub-data streams, each of the sub-data streams for transmission over selected tones; and interlacing tones of the cooperating sites in accordance with a selected one of a time switching and a frequency switching transmit diversity technique.

    Abstract translation: 在包括多个发射站点的蜂窝通信网络中，其中每个发射站点包括至少一个天线，向目标移动终端提供给定数据流的方法，包括：指定所述多个发射站点中的至少两个作为协作站点 ; 从与合作站点相关联的子带向每个发送站点分配音调; 将数据流划分为至少两个子数据流，用于在所选音调上传输的每个子数据流; 以及根据时间切换和频率切换发射分集技术中选择的一个来协作的场所的交织音调。

    AUTOMATIC RETRANSMISSION REQUEST CONTROL SYSTEM AND RETRANSMISSION METHOD IN MIMO-OFDM SYSTEM
    26.
    发明申请
    AUTOMATIC RETRANSMISSION REQUEST CONTROL SYSTEM AND RETRANSMISSION METHOD IN MIMO-OFDM SYSTEM 有权
    MIMO-OFDM系统中的自动恢复请求控制系统和恢复方法

    公开(公告)号：US20120287775A1

    公开(公告)日：2012-11-15

    申请号：US13554748

    申请日：2012-07-20

    Applicant: Choo Eng YAP ,  Lee Ying Loh

    Inventor： Choo Eng YAP ,  Lee Ying Loh

    IPC: H04L29/14

    CPC classification number: H04L1/1819 ,  H03M13/09 ,  H03M13/23 ,  H03M13/2957 ,  H03M13/6306 ,  H04B7/0413 ,  H04L1/0001 ,  H04L1/0625 ,  H04L1/0643 ,  H04L1/0656 ,  H04L1/08 ,  H04L1/1822 ,  H04L1/1825 ,  H04L1/1887

    Abstract: An automatic retransmission request control system in an OFDM-MIMO communication system includes a retransmission mode selection part which selects a retransmission mode from among (a) a mode in which to transmit the data which are to be retransmitted, via the same antenna as in the previous transmission, while transmitting, at the same time, new data by use of an antenna via which no data retransmission is requested; (b) a mode in which to transmit the data, which are to be retransmitted, via an antenna via which no retransmission is requested, while transmitting new data via another antenna at the same time; (c) a mode in which to use STBC to retransmit the data via an antenna via which no retransmission is requested; and (d) a mode in which to use STBC to retransmit the data via all the available antennas.

    Abstract translation: OFDM-MIMO通信系统中的自动重发请求控制系统包括：重发模式选择部，其从（a）通过与所述重发模式相同的天线发送要重发的数据的模式中选择重发模式 同时通过使用不需要数据重传的天线同时发送新的数据; （b）在经由另一天线同时发送新数据的同时，经由不经过重发的天线发送要重传的数据的模式; （c）使用STBC通过经由其不请求重传的天线来重传数据的模式; 和（d）使用STBC通过所有可用天线重发数据的模式。

    BASE STATION, MULTI-ANTENNA COMMUNICATION SYSTEM AND COMMUNICATION METHOD THEREOF
    27.
    发明申请
    BASE STATION, MULTI-ANTENNA COMMUNICATION SYSTEM AND COMMUNICATION METHOD THEREOF 有权
    基站，多天线通信系统及其通信方法

    公开(公告)号：US20120189082A1

    公开(公告)日：2012-07-26

    申请号：US13438480

    申请日：2012-04-03

    Applicant: Yuantao ZHANG ,  Jianming WU ,  Jun TIAN ,  Hua ZHOU

    Inventor： Yuantao ZHANG ,  Jianming WU ,  Jun TIAN ,  Hua ZHOU

    IPC: H04L27/04 ,  H04W88/08

    CPC classification number: H04L27/3488 ,  H04B7/0452 ,  H04L1/0003 ,  H04L1/0026 ,  H04L1/0031 ,  H04L1/0656

    Abstract: A User equipment selecting first user equipment in a mode of precoding transmission and second user equipment in a mode of diversity transmission; a parameter determining a modulation mode, the number of transmission layers and a precoding matrix according to channel quality information, precoding matrix information and number of transmission layers sent from the first user equipment and channel quality information and number of transmission layers sent from the second user equipment; according to the modulation mode and the number of transmission layers, generating first and second symbol sequence from first and second source data; hierarchically modulating the first and the second symbol sequence to generate a mixed symbol sequence; layer mapping and precoding for the mixed symbol sequence to generate transmission signals; and transmitting the precoding matrix and the number of transmission layers to the second user equipment; sending the transmission signals to the first and second user equipments.

    Abstract translation: A用户设备以分集传输模式以预编码传输和第二用户设备的模式选择第一用户设备; 根据信道质量信息确定调制模式，传输层数和预编码矩阵的参数，从第一用户设备发送的预编码矩阵信息和传输层数，以及从第二用户发送的信道质量信息和传输层数 设备; 根据调制方式和发送层数，从第一和第二源数据生成第一和第二符号序列; 分级调制第一和第二符号序列以产生混合符号序列; 用于混合符号序列的层映射和预编码以产生传输信号; 以及将所述预编码矩阵和所述传输层的数量发送到所述第二用户设备; 将发送信号发送到第一和第二用户设备。

    Method to detect data transmitted from multiple antennas and system thereof
    29.
    发明授权
    Method to detect data transmitted from multiple antennas and system thereof 失效
    检测从多个天线发射的数据及其系统的方法

    公开(公告)号：US08116411B2

    公开(公告)日：2012-02-14

    申请号：US11842963

    申请日：2007-08-22

    Applicant: Ananthanarayanan Chockalingam ,  Balaji Sundar Rajan ,  Kalepalli Vishnu Vardhan ,  Saif Khan Mohammed

    Inventor： Ananthanarayanan Chockalingam ,  Balaji Sundar Rajan ,  Kalepalli Vishnu Vardhan ,  Saif Khan Mohammed

    IPC: H04L27/06

    CPC classification number: H04L1/0631 ,  H04L1/0643 ,  H04L1/0656 ,  H04L2025/03414 ,  H04L2025/03426

    Abstract: A method to detect data transmitted from multiple antennas, said method comprising steps of: selecting a starting data block and calling it as previous data block; defining a set of indices of bits to be checked for possible flip in the previous data block as a check candidate set; applying update rule to obtain updated data block using the previous data block and the check candidate set, wherein the update is made in such a manner that change in likelihood is positive; checking if the updated data block and several consecutive previous data blocks are the same; if yes, declare the updated data block as the detected data block; if no, make updated data block as previous data block and repeat updation of data block.

    Abstract translation: 一种检测从多个天线发送的数据的方法，所述方法包括以下步骤：选择起始数据块并将其称为先前的数据块; 定义一组待检查的位的索引索引，作为检查候选集合在先前数据块中的可能翻转; 应用更新规则以使用所述先前数据块和所述检查候选集获得更新的数据块，其中所述更新以可能性变化为正的方式进行; 检查更新的数据块和几个连续的先前数据块是否相同; 如果是，则将更新的数据块声明为检测到的数据块; 如果没有，则将更新的数据块作为先前的数据块并重新更新数据块。

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