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    Method and device for pre-coding in multiple input multiple output system
    61.
    发明授权
    Method and device for pre-coding in multiple input multiple output system 有权
    用于在多输入多输出系统中进行预编码的方法和装置

    公开(公告)号：US08451926B2

    公开(公告)日：2013-05-28

    申请号：US12747016

    申请日：2008-12-26

    申请人： Jinxia Cheng ,  Hong He ,  Zongchuang Liang

    发明人： Jinxia Cheng ,  Hong He ,  Zongchuang Liang

    IPC分类号： H04B7/02

    CPC分类号： H04L25/0232 ,  H04B7/0617 ,  H04B7/0639 ,  H04B7/066 ,  H04L25/022 ,  H04L25/0242 ,  H04L25/03343 ,  H04L27/2647 ,  H04L2025/03426 ,  H04L2025/03802

    摘要： A signal processing method in an MIMO multi-carrier system is disclosed comprising: receiving by a receiver signals of a plurality of sub-carriers transmitted from a transmitter; dividing the sub-carriers into a plurality of sub-carrier blocks according to the correlation between adjacent sub-carriers, each sub-carrier block containing K sub-carriers; selecting a feedback sub-carrier pre-coding matrix ( ) and a rotation matrix ( ) for each sub-carrier block, and then sending the information on the pre-coding matrix and the rotation matrix back to the transmitting end. The present invention provides the method and device for effectively settling the feedback problem in an MIMO/OFDMA system, thereby greatly reducing the number of pre-coding weight matrices needed to feed back to the transmitting device.

    摘要翻译： 公开了一种MIMO多载波系统中的信号处理方法，包括：接收由发射机发送的多个子载波的信号; 根据相邻副载波之间的相关性将子载波划分为多个子载波块，每个子载波块包含K个子载波; 为每个子载波块选择反馈子载波预编码矩阵（）和旋转矩阵（），然后将关于预编码矩阵和旋转矩阵的信息发送回发送端。 本发明提供了有效地解决MIMO / OFDMA系统中的反馈问题的方法和装置，从而大大减少了反馈给发射装置所需的预编码权重矩阵的数量。

    System and method for distributed input distributed output wireless communications
    63.
    发明授权
    System and method for distributed input distributed output wireless communications 有权
    分布式输入分布式输出无线通信系统和方法

    公开(公告)号：US08428162B2

    公开(公告)日：2013-04-23

    申请号：US12637643

    申请日：2009-12-14

    申请人： Antonio Forenza ,  Robert W. Heath, Jr. ,  Stephen G. Perlman ,  Roger van der Laan ,  John Speck

    发明人： Antonio Forenza ,  Robert W. Heath, Jr. ,  Stephen G. Perlman ,  Roger van der Laan ,  John Speck

    IPC分类号： H04K1/10 ,  H04L27/28

    CPC分类号： H04L25/03343 ,  H04B7/0684 ,  H04L1/0057 ,  H04L25/0206 ,  H04L25/0224 ,  H04L2025/03414 ,  H04L2025/0377 ,  H04L2025/03802

    摘要： A system for compensating for in-phase and quadrature (I/Q) imbalances for multiple antenna systems (MAS) with multi-user (MU) transmissions (defined with the acronym MU-MAS), such as distributed-input distributed-output (DIDO) communication systems, comprising multicarrier modulation, such as orthogonal frequency division multiplexing (OFDM). For example, one embodiment of the system comprises one or more coding modulation units to encode and modulate information bits for each of a plurality of wireless client devices to produce encoded and modulated information bits; one or more mapping units to map the encoded and modulated information bits to complex symbols; and a MU-MAS or DIDO IQ-aware precoding unit to exploit channel state information obtained through feedback from the wireless client devices to compute MU-MAS or DIDO IQ-aware precoding weights, the MU-MAS or DIDO IQ-aware precoding unit precoding the complex symbols obtained from the mapping units using the weights to pre-cancel interference due to I/Q gain and phase imbalances and/or inter-user interference.

    摘要翻译： 用于补偿具有多用户（MU）传输（用首字母缩略词MU-MAS定义）的多天线系统（MAS）的同相和正交（I / Q）不平衡的系统，例如分布式输入分布式输出（ DIDO）通信系统，包括多载波调制，例如正交频分复用（OFDM）。 例如，系统的一个实施例包括一个或多个编码调制单元，以编码和调制多个无线客户端设备中的每一个的信息比特，以产生编码和调制的信息比特; 一个或多个映射单元将编码和调制的信息比特映射到复数符号; 以及MU-MAS或DIDO IQ感知预编码单元，以利用通过来自无线客户端设备的反馈获得的信道状态信息来计算MU-MAS或DIDO IQ感知预编码权重，MU-MAS或DIDO IQ感知预编码单元预编码 从映射单元获得的复数符号使用权重来预先消除由于I / Q增益和相位不平衡和/或用户间干扰引起的干扰。

    TERMINAL DEVICE, BASE STATION DEVICE, COMMUNICATION SYSTEM, AND COMMUNICATION METHOD
    64.
    发明申请
    TERMINAL DEVICE, BASE STATION DEVICE, COMMUNICATION SYSTEM, AND COMMUNICATION METHOD 有权
    终端设备，基站设备，通信系统和通信方法

    公开(公告)号：US20130094368A1

    公开(公告)日：2013-04-18

    申请号：US13704353

    申请日：2011-06-03

    申请人： Toshizo Nogami ,  Kazuyuki Shimezawa ,  Tatsushi Aiba ,  Lei Huang

    发明人： Toshizo Nogami ,  Kazuyuki Shimezawa ,  Tatsushi Aiba ,  Lei Huang

    IPC分类号： H04W24/10

    CPC分类号： H04W24/10 ,  H04L1/0026 ,  H04L1/0031 ,  H04L1/0073 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0057 ,  H04L5/006 ,  H04L25/03343 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04L2025/03802 ,  H04W28/18

    摘要： A terminal device includes communication means for carrying out communication with a base station device, and generation means for generating a rank indicator specifying a preferred rank, first partial precoder information and second partial precoder information specifying a preferred precoder, and a reception quality indicator specifying a preferred transmission rate. In a first feedback mode in which reception quality information is reported periodically to the base station device, the communication means reports the second partial precoder information and the reception quality indicator at first timing, and reports the rank indicator and the first partial precoder information at second timing different from the first timing. In a second feedback mode in which the reception quality information is reported aperiodically to the base station device, the communication means reports the rank indicator, the first partial precoder information, the second partial precoder information, and the reception quality indicator at the same timing.

    摘要翻译： 终端装置包括用于与基站装置进行通信的通信装置，以及用于生成指定优选等级的秩指示符的产生装置，指定优选预编码器的第一部分预编码器信息和第二部分预编码器信息以及指定 优选传输速率。 在对基站装置周期性地报告接收质量信息的第一反馈模式中，通信装置在第一定时报告第二部分预编码器信息和接收质量指示符，并在第二时间报告秩指示符和第一部分预编码信息 时间不同于第一时间。 在接收质量信息不定期地向基站装置报告的第二反馈模式中，通信装置在相同的定时报告秩指示符，第一部分预编码器信息，第二部分预编码器信息和接收质量指示符。

    System and method for quantization of channel state vectors
    66.
    发明授权
    System and method for quantization of channel state vectors 有权
    用于量化信道状态向量的系统和方法

    公开(公告)号：US08411776B2

    公开(公告)日：2013-04-02

    申请号：US12633376

    申请日：2009-12-08

    申请人： Chun Kin Au-Yeung ,  Shahab Sanayei

    发明人： Chun Kin Au-Yeung ,  Shahab Sanayei

    IPC分类号： H04L5/12

    CPC分类号： H04W24/10 ,  H04B7/0617 ,  H04B7/0626 ,  H04L1/0023 ,  H04L1/0041 ,  H04L1/0072 ,  H04L25/0204 ,  H04L25/0228 ,  H04L25/03191 ,  H04L25/03343 ,  H04L2025/03426 ,  H04L2025/03802

    摘要： A system and method for the quantization of channel state vectors is provided. A method for communications node operation includes measuring a communications channel between the communications node and a controller, generating channel state information based on the measurement, computing a bit representation of the channel state information, transmitting the bit representation to the controller, and receiving a transmission from the controller. The computing makes use of tail-biting trellis decoding, and the transmission makes use of the channel state information transmitted by the communications node.

    摘要翻译： 提供了一种用于量化信道状态向量的系统和方法。 一种用于通信节点操作的方法包括测量通信节点和控制器之间的通信信道，基于测量产生信道状态信息，计算信道状态信息的位表示，向控制器发送位表示，以及接收传输 从控制器。 该计算利用尾部网格解码，并且传输利用通信节点发送的信道状态信息。

    Method of transmitting data in multiple antenna system
    67.
    发明授权
    Method of transmitting data in multiple antenna system 有权
    在多天线系统中传输数据的方法

    公开(公告)号：US08400950B2

    公开(公告)日：2013-03-19

    申请号：US13169800

    申请日：2011-06-27

    申请人： Hyun Soo Ko ,  Bin Chul Ihm ,  Wook Bong Lee ,  Jae Hoon Chung ,  Moon Il Lee

    发明人： Hyun Soo Ko ,  Bin Chul Ihm ,  Wook Bong Lee ,  Jae Hoon Chung ,  Moon Il Lee

    IPC分类号： H04J1/16 ,  H04L12/56

    CPC分类号： H04B7/0413 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/0656 ,  H04B7/0689 ,  H04B7/0871 ,  H04L1/0026 ,  H04L1/0035 ,  H04L1/0073 ,  H04L1/0625 ,  H04L5/005 ,  H04L5/0053 ,  H04L25/03343 ,  H04L2025/03802

    摘要： A method of transmitting data in a wireless communication system comprises receiving feedback data on an uplink data channel, the feedback data comprising a precoding matrix indicator (PMI), wherein the value of the PMI corresponds to an index in a codebook, transmitting a precoding scheme for downlink data on a downlink control channel, wherein the precoding scheme is determined as one of at least two of a transmit diversity irrespective of the received PMI, an acknowledgement indicating precoding according to the received PMI and a new PMI indicating that it is used in precoding downlink data to be transmitted, and transmitting the downlink data on a downlink data channel after applying precoding according to the determined precoding scheme.

    摘要翻译： 一种在无线通信系统中发送数据的方法包括在上行链路数据信道上接收反馈数据，反馈数据包括预编码矩阵指示符（PMI），其中PMI的值对应于码本中的索引，发送预编码方案 对于下行链路控制信道上的下行链路数据，其中所述预编码方案被确定为与所接收的PMI无关的发射分集中的至少两个中的一个，根据接收到的PMI指示预编码的确认和指示其用于 预编码要发送的下行链路数据，以及在根据所确定的预编码方案应用预编码之后，在下行链路数据信道上发送下行链路数据。

    Device, system and method of simultaneously communicating with a group of wireless communication devices
    69.
    发明授权
    Device, system and method of simultaneously communicating with a group of wireless communication devices 有权
    与一组无线通信设备同时通信的设备，系统和方法

    公开(公告)号：US08374154B2

    公开(公告)日：2013-02-12

    申请号：US12645648

    申请日：2009-12-23

    申请人： Michelle X. Gong ,  Robert J. Stacey

    发明人： Michelle X. Gong ,  Robert J. Stacey

    IPC分类号： H04L12/66 ,  H04W4/00 ,  H04B1/00 ,  H04B7/02

    CPC分类号： H04W4/08 ,  H04B7/0634 ,  H04L5/0023 ,  H04L25/03343 ,  H04L2025/03783 ,  H04L2025/03802 ,  H04W16/28 ,  H04W74/0833

    摘要： Some demonstrative embodiments include devices, systems and/or methods of simultaneously communicating with a group of wireless communication devices. For example, a device may include a wireless communication unit to transmit at least one beamforming-training initiation frame to a group of a plurality of wireless communication devices, wherein the wireless communication unit is to receive two or more feedback frames from two or more of the wireless communication devices, wherein the wireless communication unit is to determine two or more beamforming schemes based on the two or more feedback frames, and wherein the wireless communication unit is to simultaneously transmit two or more different wireless communication transmissions to the two or more wireless communication devices, respectively, using the two or more beamforming schemes, respectively. Other embodiments are described and claimed.

    摘要翻译： 一些演示实施例包括与一组无线通信设备同时通信的设备，系统和/或方法。 例如，设备可以包括无线通信单元，用于将至少一个波束形成训练起始帧发送到多个无线通信设备的一组，其中无线通信单元将从两个或更多个 所述无线通信设备，其中所述无线通信单元将基于所述两个或更多个反馈帧来确定两个或更多个波束成形方案，并且其中所述无线通信单元将同时向所述两个或更多个无线电信号发送两个或多个不同的无线通信传输 通信设备分别使用两个或更多个波束成形方案。 描述和要求保护其他实施例。