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    Codebook for multiple-input multiple-output system and communication method and apparatus using same
    1.
    发明授权
    Codebook for multiple-input multiple-output system and communication method and apparatus using same 有权

    公开(公告)号：US10305557B2

    公开(公告)日：2019-05-28

    申请号：US15106644

    申请日：2014-12-22

    Applicant: Samsung Electronics Co., Ltd. ,  Purdue Research Foundation

    Inventor： Junil Choi ,  David J. Love ,  Tae-Young Kim ,  Ji-Yun Seol

    IPC: H04B7/04 ,  H04B7/0456 ,  H04B7/0417 ,  H04L1/00

    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). Exemplary embodiment of the present invention provide a scheme for reducing feedback overhead when quantizing and feeding back channel state information in a MIMO system. A method for operating a receiver in a MIMO system, according to one embodiment of the present invention, includes the steps of: performing trellis coded quantization for channel information by using a codebook selected from a plurality of codebooks; and transmitting, to a transmitter, feedback information including the quantization result. The step of performing trellis-coded quantization for the channel information includes a step of truncating the channel information and codewords included in the selected codebook into multiple groups of channel vectors and multiple groups of codewords, respectively, and performing trellis-coded quantization for each of the groups of the channel vectors by using each of the groups of the codewords.

    Method and apparatus for using channel output feedback in multi user wireless systems and hybrid-ARQ
    3.
    发明授权
    Method and apparatus for using channel output feedback in multi user wireless systems and hybrid-ARQ 有权
    在多用户无线系统和混合ARQ中使用信道输出反馈的方法和装置

    公开(公告)号：US09161247B2

    公开(公告)日：2015-10-13

    申请号：US14058737

    申请日：2013-10-21

    Applicant: Samsung Electronics Co., Ltd. ,  Purdue Research Foundation

    Inventor： Sangmin Ro ,  Mayur Agrawal ,  David J. Love ,  Junil Choi ,  Juho Lee

    IPC: H04W24/02 ,  H04L5/00 ,  H04L1/00 ,  H04L1/16 ,  H04L1/18

    CPC classification number: H04W24/02 ,  H04L1/0026 ,  H04L1/1671 ,  H04L1/1893 ,  H04L5/0051

    Abstract: A method and apparatus for transmitting and receiving a signal using a channel output feedback in a wireless communication system and Hybrid-Automatic Repeat Request (ARQ) are provided. The method and apparatus include a transmitter configured to transmit to a base station and a first packet on a precoder received from the base station. A receiver configured to receive, from the base station, a Channel Output Feedback (COF) of the transmitted first packet and information for transmitting a second packet. A controller configured to prepare a variant of the second packet using the COF and the received information for transmitting the second packet, and to control to transmit the prepared variant to the base station.

    Abstract translation: 提供了一种使用无线通信系统和混合自动重传请求（ARQ）中的信道输出反馈来发送和接收信号的方法和装置。 所述方法和装置包括：发射机，被配置为向基站发送和从基站接收的预编码器上的第一分组。 一种被配置为从基站接收所发送的第一分组的信道输出反馈（COF）和用于发送第二分组的信息的接收机。 控制器，其被配置为使用所述COF和所接收的用于发送所述第二分组的信息来准备所述第二分组的变体，并且控制将所准备的变体发送到所述基站。

    DIFFERENTIAL CODEBOOK FOR TEMPORALLY-CORRELATED MISO DUAL-POLARIZATION ANTENNA
    5.
    发明申请
    DIFFERENTIAL CODEBOOK FOR TEMPORALLY-CORRELATED MISO DUAL-POLARIZATION ANTENNA 有权
    用于时间相关MISO双极化天线的差分编码

    公开(公告)号：US20140112413A1

    公开(公告)日：2014-04-24

    申请号：US13656075

    申请日：2012-10-19

    Applicant: Samsung Electronics Co., Ltd. ,  Purdue Research Foundation

    Inventor： Sangmin Ro ,  Junil Choi ,  David J. Love ,  Juho Lee

    IPC: H04B7/04

    CPC classification number: H04B7/0469 ,  H04B7/0456 ,  H04B7/0482 ,  H04B7/0639

    Abstract: A code word selection method performed by a User Equipment (UE) in a wireless communication system is provided. The method includes generating a rotation matrix using previously selected codeword; generating a new differential code book using the rotation matrix and a differential code book; selecting a code word from the new differential code book; and performing data transmission using the selected code word.

    Abstract translation: 提供了一种由无线通信系统中的用户设备（UE）执行的码字选择方法。 该方法包括使用先前选择的码字生成旋转矩阵; 使用旋转矩阵和差分代码簿生成新的差分代码本; 从新的差分代码簿中选择一个代码字; 以及使用所选择的代码字执行数据传输。

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