公开(公告)号：US10122497B2

公开(公告)日：2018-11-06

申请号：US15790695

申请日：2017-10-23

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H04L1/06 ,  H04L5/00 ,  H04L25/02 ,  H04W72/04 ,  H04B17/318 ,  H04L1/00 ,  H04W72/08 ,  H04L25/03 ,  H04B17/24 ,  H04W72/12

Abstract: A method for wireless communication by a terminal, a method for wireless communication by a base station, the terminal, and the base station, are provided. The method for wireless communication by the terminal includes receiving first information comprising a muting subframe interval, a subframe offset, and a muting position of a resource element in a resource block, checking presence of a data in a subframe, determining the resource element to be muted in the subframe based on the muting subframe interval, the subframe offset, and the muting position, if the data is present, and receiving the data on a physical downlink shared channel (PDSCH) based on the result of the determining step.

公开(公告)号：US08625712B2

公开(公告)日：2014-01-07

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: H04L27/00

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。

公开(公告)号：US09800373B2

公开(公告)日：2017-10-24

申请号：US14592351

申请日：2015-01-08

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H04L1/06 ,  H04L5/00 ,  H04W72/04 ,  H04L25/02 ,  H04B17/318 ,  H04L1/00 ,  H04W72/08 ,  H04L25/03 ,  H04B17/24 ,  H04W72/12

CPC classification number: H04L1/0693 ,  H04B17/24 ,  H04B17/318 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/06 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0057 ,  H04L5/0073 ,  H04L5/0082 ,  H04L5/0092 ,  H04L25/0226 ,  H04L2025/03426 ,  H04L2025/03802 ,  H04W72/04 ,  H04W72/042 ,  H04W72/085 ,  H04W72/1226 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/20

Abstract: A method for wireless communication by a terminal, a method for wireless communication by a base station, the terminal, and the base station, are provided. The method for wireless communication by the terminal includes receiving first information comprising a muting subframe interval, a subframe offset, and a muting position of a resource element in a resource block, checking presence of a data in a subframe, determining the resource element to be muted in the subframe based on the muting subframe interval, the subframe offset, and the muting position, if the data is present, and receiving the data on a physical downlink shared channel (PDSCH) based on the result of the determining step.

公开(公告)号：US09629105B2

公开(公告)日：2017-04-18

申请号：US15015966

申请日：2016-02-04

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 of a user equipment (UE). It is determined whether a simultaneous physical uplink control channel (PUCCH) and physical uplink shared channel (PUSCH) transmission is configured. First power headroom information and second power headroom information are, if the simultaneous PUCCH and PUSCH transmission is configured. The first power headroom information and the second power headroom information are simultaneously transmitted to a base station. The first power headroom information is obtained by subtracting a PUSCH transmit power from a maximum UE transmit power in a subframe, and the second power headroom information is obtained by subtracting a PUCCH transmit power and the PUSCH transmit power from the maximum UE transmit power in the subframe.