公开(公告)号：US20150236765A1

公开(公告)日：2015-08-20

申请号：US14626519

申请日：2015-02-19

Applicant: Samsung Electronics Co., Ltd. ,  Industry-Academic Cooperation Foundation, Yonsei University

Inventor： Hyoung-Youl YU ,  Chan-Byoung Chae ,  Yeon-Geun Lim ,  Young-Woo Kwak ,  Hyo-Jin Lee ,  Hyoung-Ju Ji ,  Youn-Sun Kim

IPC: H04B7/04

CPC classification number: H04B7/0452 ,  H04B7/0417 ,  H04B7/0456 ,  H04B7/0469 ,  H04B7/0478 ,  H04B7/0639 ,  H04B7/0663

Abstract: A method and apparatus for a channel feedback by a signal transmitting device in a Multiple Input Multiple Output (MIMO) system are provided. The method includes transmitting a pilot in which a compression rate is reflected to a signal receiving device; receiving channel related information on a compressed channel from the signal receiving device; and performing a precoding based on the channel related information. The apparatus includes a transmitting unit configured to transmit a pilot to which a compression rate is reflected to a signal receiving device; a receiving unit configured to receive channel related information on a compressed channel from the signal receiving device; and a precoding unit configured to perform a precoding based on the channel related information.

Abstract translation: 提供了一种由多输入多输出（MIMO）系统中的信号发送装置进行信道反馈的方法和装置。 该方法包括发送其中压缩率被反射到信号接收装置的导频; 从信号接收装置接收压缩信道上的信道相关信息; 以及基于信道相关信息执行预编码。 该装置包括发送单元，被配置为将压缩率被反射的导频发送到信号接收装置; 接收单元，被配置为从所述信号接收装置接收关于压缩信道的信道相关信息; 以及预编码单元，被配置为基于所述信道相关信息执行预编码。

公开(公告)号：US20150215090A1

公开(公告)日：2015-07-30

申请号：US14571194

申请日：2014-12-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Krishna Sayana ,  Boon Loong Ng ,  Young-Han Nam ,  Thomas David Novlan ,  Jinkyu Han ,  Jianzhong Zhang ,  Hyojin Lee ,  Youn-Sun Kim

IPC: H04L5/00 ,  H04W72/04

Abstract: Coordinate multi-point (CoMP) transmission is facilitated by resolving collisions between feedback reporting. Based upon the conditions within the network, collision resolution may be by dropping a channel report during a subframe, multiplexing channel reports from a plurality of user equipment, compressing channel reports from a plurality of user equipment, and combined reporting, either through joint reports or by using carrier aggregation, for conditions between a user equipment and a plurality of transmission points. New signaling and reporting formats facilitate selection of a collision resolution suitable for current network conditions.

Abstract translation: 通过解决反馈报告之间的冲突，便于协调多点（CoMP）传输。 基于网络中的条件，冲突解决可以是通过在子帧期间丢弃信道报告，从多个用户设备复用信道报告，从多个用户设备压缩信道报告，以及通过联合报告或 通过使用载波聚合，用于用户设备和多个传输点之间的条件。 新的信令和报告格式有助于选择适合当前网络条件的冲突解决方案。

公开(公告)号：US20150003316A1

公开(公告)日：2015-01-01

申请号：US14375108

申请日：2013-01-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Youn-Sun Kim ,  Ki-IL Kim ,  Ju-Ho Lee ,  Hyo-Jin Lee ,  Joon-Young Cho ,  Hyoung-Ju Ji ,  Seung-Hoon Choi

IPC: H04W72/04 ,  H04L5/00 ,  H04W4/06

CPC classification number: H04W72/042 ,  H04B7/0617 ,  H04B7/0678 ,  H04B7/068 ,  H04B7/2656 ,  H04L5/005 ,  H04L5/0055 ,  H04L5/0094 ,  H04L12/189 ,  H04W4/06

Abstract: The present invention relates to a method for transmitting data from a base station to a terminal in a wireless communication system, wherein the method includes the steps of: determining a terminal for transmitting downlink data; when the downlink data is transmitted, confirming the kind of subframe in which the downlink data is transmitted; when the subframe is a normal subframe, transmitting the downlink data on the basis of a cell specific reference signal (CRS) or a demodulation reference signal (DMRS); and, when the subframe is a multimedia broadcast multicast service signal frequency network (MBSFN) subframe, transmitting the downlink data on the basis of the DMRS.

Abstract translation: 本发明涉及一种在无线通信系统中从基站向终端发送数据的方法，其中该方法包括以下步骤：确定用于发送下行链路数据的终端; 当发送下行链路数据时，确认发送下行链路数据的子帧的种类; 当子帧是正常子帧时，基于小区特定参考信号（CRS）或解调参考信号（DMRS）发送下行链路数据; 并且当子帧是多媒体广播多播服务信号频率网络（MBSFN）子帧时，基于DMRS发送下行数据。

公开(公告)号：US20140269596A1

公开(公告)日：2014-09-18

申请号：US14349875

申请日：2012-10-05

Applicant: Samsung Electronics Co., Ltd.

Inventor： Youn-Sun Kim ,  Ki-Il Kim ,  Ju-Ho Lee ,  Hyo-Jin Lee ,  Joon-Young Cho ,  Seung-Hoon Choi

IPC: H04W72/08

CPC classification number: H04W72/085 ,  H04B7/06 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04W72/042

Abstract: Disclosed is a method and apparatus for transmitting channel state information (CSI) by a user equipment in a mobile communication system. The method includes receiving a CSI-reference signal (CSI-RS) for measuring a state of a downlink channel and a CSI feedback-related configuration from a base station (BS); determining a channel quality indication (CQI) for at least one transmission point and control information for determining a CQI for multiple transmission points, based on the received CSI-RS and CSI feedback-related configuration; and transmitting the determined CQI for the at least one transmission point and control information to the BS.

Abstract translation: 公开了一种用于在移动通信系统中由用户设备发送信道状态信息（CSI）的方法和装置。 该方法包括从基站（BS）接收用于测量下行链路信道的状态的CSI参考信号（CSI-RS）和CSI反馈相关配置; 基于所接收的CSI-RS和CSI反馈相关配置，确定用于至少一个传输点的信道质量指示（CQI）和用于确定多个传输点的CQI的控制信息; 以及将所确定的所述至少一个传输点的CQI和控制信息发送给所述BS。

公开(公告)号：US20130088984A1

公开(公告)日：2013-04-11

申请号：US13646164

申请日：2012-10-05

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyo-Jin Lee ,  Youn-Sun Kim ,  Ju-Ho Lee

IPC: H04W24/00

CPC classification number: H04B7/0626 ,  H04B7/0417 ,  H04B7/0632 ,  H04B7/0639 ,  H04L5/0032 ,  H04L5/0053 ,  H04L5/0057 ,  H04L25/00

Abstract: A method and an apparatus are provided for generating feedback in a communication system. The method includes receiving information about first Evolved Node Bs (ENBs) and a threshold for the first ENBs, which are powered off at a specific time; measuring a channel status for each of second ENBs, which are subject to channel status measurement; selecting a third ENB having an optimal channel status from among the second ENBs, based on the measured channel statuses; generating first feedback information including a cell index and channel status information for the third ENB; measuring a channel status for each of the second ENBs, while the first ENBs are powered off; selecting a fourth ENB having an optimal channel status from among the second ENBs, based on the measured channel statuses; and generating second feedback information including a cell index and channel status information for the fourth ENB.

Abstract translation: 提供了一种用于在通信系统中产生反馈的方法和装置。 该方法包括接收关于第一演进节点B（ENB）的信息和在特定时间关闭的第一ENB的阈值; 测量经过信道状态测量的每个第二ENB的信道状态; 基于测量的信道状态从第二ENB中选择具有最佳信道状态的第三ENB; 产生第一反馈信息，包括第三ENB的信元索引和信道状态信息; 测量每个第二ENB的通道状态，同时第一个ENB断电; 基于测量的信道状态，从第二ENB中选择具有最佳信道状态的第四ENB; 以及生成包括第四ENB的小区索引和信道状态信息的第二反馈信息。

公开(公告)号：US20130083758A1

公开(公告)日：2013-04-04

申请号：US13645082

申请日：2012-10-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ki-IL KIM ,  Youn-Sun Kim ,  Hyo-Jin Lee ,  Ju-Ho Lee

IPC: H04W72/06

CPC classification number: H04L5/0053 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/065 ,  H04L1/0026 ,  H04L1/0031 ,  H04L1/06 ,  H04L1/20 ,  H04L25/00 ,  H04W24/10

Abstract: A method and apparatus are provided for reporting Channel State Information (CSI) for operation of a network, when a Precoding Matrix Indicator (PMI) and a Channel Quality Indicator (CQI) cannot be calculated. The method includes reporting a first Precoding Matrix Indicator (PMI); detecting that a Rank Indicator (RI) is changed before a second PMI is reported, the RI being changed within an RI group; calculating the second PMI and a Channel Quality Indicator (CQI) using the first PMI; and reporting the second PMI and the CQI.

Abstract translation: 当不能计算预编码矩阵指示符（PMI）和信道质量指示符（CQI）时，提供一种用于报告用于网络操作的信道状态信息（CSI）的方法和装置。 该方法包括报告第一预编码矩阵指示符（PMI）; 检测在报告第二PMI之前改变了秩指示符（RI），RI在RI组内被改变; 使用第一PMI计算第二PMI和信道质量指示符（CQI）; 并报告第二PMI和CQI。