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    COMMUNICATION METHOD AND APPARATUS USING CODEBOOK IN MIMO SYSTEM
    2.
    发明申请
    COMMUNICATION METHOD AND APPARATUS USING CODEBOOK IN MIMO SYSTEM 有权
    在MIMO系统中使用CODEBOOK的通信方法和设备

    公开(公告)号：US20130142277A1

    公开(公告)日：2013-06-06

    申请号：US13738434

    申请日：2013-01-10

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Myung Hoon Yeon ,  Joon Young Cho ,  Ju Ho Lee

    IPC: H04B7/04

    CPC classification number: H04B7/0465 ,  H04B7/0447 ,  H04B7/0617 ,  H04B7/0619 ,  H04L5/0023 ,  H04L27/2614

    Abstract: A method and apparatus for transmitting and receiving signals using a codebook which maps each codeword to at least two different antennas is provided for a MIMO system. A transmission method includes mapping multiple codewords to multiple layers; mapping the multiple layers to multiple antennas using a precoding matrix selected from a rank-3 codebook which is designed to map the codewords to different antennas; and transmitting the codewords through paths formed by mapping the layers and the antennas. The precoding matrix of the rank-3 codebook is designed to equalize transmit power ratios between the antennas. The communication method and apparatus is advantageous to solve the problem of transmit power imbalance among the layers and the problem of performance degradation at the high SNR region in the conventional system using the rank-3 precoding matrices.

    Abstract translation: 为MIMO系统提供使用将每个码字映射到至少两个不同天线的码本发送和接收信号的方法和装置。 传输方法包括将多个码字映射到多个层; 使用从被设计为将码字映射到不同天线的等级3码本中选择的预编码矩阵将多层映射到多个天线; 以及通过映射层和天线形成的路径来发送码字。 第3级码本的预编码矩阵被设计为使天线之间的发射功率比相等。 该通信方法和装置有利于解决传统系统中使用秩3预编码矩阵的层间发射功率不平衡问题和高SNR区域性能退化问题。

    Method and apparatus for transmitting CSI-RS and data using partial muting of CSI-RS
    3.
    发明授权
    Method and apparatus for transmitting CSI-RS and data using partial muting of CSI-RS 有权
    使用CSI-RS的部分静音发送CSI-RS和数据的方法和装置

    公开(公告)号：US09287905B2

    公开(公告)日：2016-03-15

    申请号：US14196606

    申请日：2014-03-04

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Sung Tae Kim ,  Youn Sun Kim ,  Jin-Kyu Han ,  Myung Hoon Yeon ,  Cheng Shan

    IPC: H04B1/04 ,  H04L5/00

    CPC classification number: H04B1/0475 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0057

    Abstract: A method and apparatus for transmitting Channel State Information Reference Symbol (CSI-RS) and data with partial muting of the CSI-RS are proposed. The method includes determining a CSI-RS pattern to be used among CSI-RS pattern candidates, determining a muting pattern for muting some resource elements constituting CSI-RS pattern candidates except for the determined CSI-RS pattern, mapping data symbols and CSI-RS to resource elements in a resource grid with rate patching in consideration of the CSI-RS pattern and muting pattern, and transmitting the data symbols and CSI-RS to a terminal.

    Abstract translation: 提出了一种用于发送信道状态信息参考符号（CSI-RS）的方法和装置以及具有CSI-RS的部分静噪的数据。 该方法包括确定在CSI-RS模式候选中要使用的CSI-RS模式，确定用于使构成除了确定的CSI-RS模式之外的CSI-RS模式候选的一些资源元素静噪的静噪模式，映射数据符号和CSI-RS 考虑到CSI-RS模式和静噪模式，利用速率修补的资源网格中的资源元素，并将数据符号和CSI-RS发送到终端。

    Methods for power headroom reporting, resource allocation, and power control
    9.
    发明授权
    Methods for power headroom reporting, resource allocation, and power control 有权
    功率余量报告，资源分配和功率控制方法

    公开(公告)号：US09258792B2

    公开(公告)日：2016-02-09

    申请号：US14252295

    申请日：2014-04-14

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Myung Hoon Yeon ,  Joon Young Cho ,  Ju Ho Lee

    IPC: H04W52/36 ,  H04W72/04 ,  H04W52/16 ,  H04W52/32 ,  H04W52/28

    CPC classification number: H04W52/365 ,  H04W52/16 ,  H04W52/281 ,  H04W52/325 ,  H04W72/0413

    Abstract: Methods and apparatuses are provided for reporting power headroom for a UE. At least one of power control information associated with a PUSCH transmission in a subframe and power control information associated with a PUCCH transmission in the subframe is received. One of a first power headroom information and a second power headroom information is conditionally generated. One of the first power headroom information and the second power headroom information is conditionally transmitted. If the UE transmits the PUSCH without the PUCCH in the subframe, the second power headroom information is generated by subtracting the transmit power for the PUSCH transmission and a transmit power for a PUCCH from the maximum transmit power of the UE in the subframe based on the power control information associated with the PUSCH transmission and power control information associated with the latest PUCCH transmission.

    Abstract translation: 提供了用于报告UE的功率余量的方法和装置。 接收与子帧中的PUSCH传输相关联的功率控制信息中的至少一个以及与子帧中的PUCCH传输相关联的功率控制信息。 有条件地产生第一功率余量信息和第二功率余量信息之一。 有条件地发送第一功率余量信息和第二功率余量信息之一。 如果UE在子帧中发送没有PUCCH的PUSCH，则通过从子帧中的UE的最大发送功率中减去PUSCH发送的发送功率和PUCCH的发送功率来生成第二功率余量信息，基于 与PUSCH传输相关联的功率控制信息和与最新PUCCH传输相关联的功率控制信息。

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