公开(公告)号：US20160352401A1

公开(公告)日：2016-12-01

申请号：US15236249

申请日：2016-08-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyoungyoul Yu ,  Younsun Kim ,  Hyojin Lee

IPC: H04B7/04 ,  H04L5/00 ,  H04B7/06

CPC classification number: H04B7/0456 ,  H04B7/0469 ,  H04B7/0478 ,  H04B7/0486 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0639 ,  H04B7/065 ,  H04B7/10 ,  H04L5/0053

Abstract: A communication method of a user equipment in a mobile communication system. The method includes receiving a control signal from a base station, the control signal comprising at least one of: a first information element or a second information element; determining, if a field of the first information element is set to a predetermined value and a channel state information (CSI) reporting mode determined based on the second information element is a redetermined mode, a codebook based on the CSI reporting mode; generating a CSI based on the determined codebook, the CSI comprising at least one of a rank indicator (RI), a first precoding matrix indicator (PMI), or a second PMI; and reporting the generated CSI to the base station.

Abstract translation: 移动通信系统中的用户设备的通信方法。 该方法包括从基站接收控制信号，所述控制信号包括以下中的至少一个：第一信息元素或第二信息元素; 确定第一信息元素的字段是否被设置为预定值，并且基于第二信息元素确定的信道状态信息（CSI）报告模式是重新确定模式;基于CSI报告模式的码本; 基于所确定的码本生成CSI，所述CSI包括秩指示符（RI），第一预编码矩阵指示符（PMI）或第二PMI中的至少一个; 并将生成的CSI报告给基站。

公开(公告)号：US09414363B2

公开(公告)日：2016-08-09

申请号：US14861450

申请日：2015-09-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyojin Lee ,  Younsun Kim ,  Kiil Kim ,  Youngbum Kim

IPC: H04L1/00 ,  H04W72/04 ,  H04B7/02 ,  H04W48/20 ,  H04L5/00 ,  H04B17/24 ,  H04B17/309 ,  H04B17/336 ,  H04B17/382 ,  H04W72/08 ,  H04W28/04

CPC classification number: H04W72/0406 ,  H04B7/024 ,  H04B17/24 ,  H04B17/309 ,  H04B17/336 ,  H04B17/382 ,  H04L5/0035 ,  H04L5/0048 ,  H04W28/04 ,  H04W48/20 ,  H04W72/082 ,  H04W72/085

Abstract: Methods and apparatuses are provided for transmitting channel information, by a User Equipment (UE). Information for at least one first type Channel Status Information Reference Signal (CSI-RS) and information for at least one second type CSI-RS from an eNB, are identified. A Physical Downlink Control Channel (PDCCH) including an indicator is received. The indicator triggers channel information report associated with a first type CSI-RS and a second type CSI-RS, among the at least one first type CSI-RS and the at least one second type CSI-RS. Channel information is generated based on the first type CSI-RS and the second type CSI-RS. The channel information is reported through a Physical Uplink Shared CHannel (PUSCH).

Abstract translation: 提供用于由用户设备（UE）发送信道信息的方法和装置。 识别用于至少一个第一类型信道状态信息参考信号（CSI-RS）的信息和来自eNB的至少一个第二类型CSI-RS的信息。 接收包括指示符的物理下行链路控制信道（PDCCH）。 所述指示符触发所述至少一个第一类型CSI-RS和所述至少一个第二类型CSI-RS中的与第一类型CSI-RS和第二类型CSI-RS相关联的信道信息报告。 基于第一类型CSI-RS和第二类型CSI-RS生成信道信息。 信道信息通过物理上行链路共享信道（PUSCH）报告。

公开(公告)号：US09408086B2

公开(公告)日：2016-08-02

申请号：US13728510

申请日：2012-12-27

Applicant: Samsung Electronics Co., Ltd. ,  Industry-Academic Cooperation Foundation, Korea National University of Transportation

Inventor： Kiil Kim ,  Cheol Mun ,  Younsun Kim ,  Juho Lee ,  Hyojin Lee ,  Joonyoung Cho

IPC: H04L1/00 ,  H04W24/02 ,  H04L5/00 ,  H04B7/04 ,  H04W16/28 ,  H04W72/08 ,  H04L25/02 ,  H04B7/06

CPC classification number: H04W24/02 ,  H04B7/0417 ,  H04B7/0478 ,  H04B7/0639 ,  H04L5/0023 ,  H04L25/0204 ,  H04W16/28 ,  H04W72/085

Abstract: A Channel State Information (CSI) feedback method and apparatus is provided for transmitting, at a base station, the CSIs for plural transmit antennas with a limited amount resource and receiving, at a mobile station, the CSIs efficiently in a massive Multiple Input Multiple Output (MIMO) system operating in the Frequency Division Duplex (FDD) mode.

Abstract translation: 提供了一种信道状态信息（CSI）反馈方法和装置，用于在基站处发送具有有限资源资源的多个发射天线的CSI，并在移动台以高质量的多输入多输出方式接收CSI （MIMO）系统以频分双工（FDD）模式工作。

公开(公告)号：US09320046B2

公开(公告)日：2016-04-19

申请号：US14690971

申请日：2015-04-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Younsun Kim ,  Youngbum Kim ,  Juho Lee ,  Hyojin Lee ,  Joonyoung Cho ,  Hyoungju Ji ,  Seunghoon Choi

IPC: H04W24/00 ,  H04W80/04 ,  H04W72/08 ,  H04W24/10 ,  H04B7/04 ,  H04W72/04 ,  H04B7/02 ,  H04B7/06

CPC classification number: H04B7/0486 ,  H04B7/022 ,  H04B7/04 ,  H04B7/0417 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/0645 ,  H04W24/10 ,  H04W72/042 ,  H04W72/082

Abstract: An apparatus and a method of measuring a reference signal for efficient downlink transmission in a mobile communication system are provided. The system includes plural base stations, each having a plurality of antennas distributed in the service area thereof based on a Distributed Antenna System (DAS). A method for a base station to notify a terminal of reference signal measurement information in a mobile communication system comprises determining whether the terminal is in a Rank Indicator/Precoding Matrix Indicator (RI/PMI) disabled mode, selecting, when the terminal is in the RI/PMI disabled mode, the reference signal to be measured by the terminal between a Cell-specific Reference Signal (CRS) and a Channel Status Information Reference Signal (CSI-RS), notifying the terminal of the reference signal measurement information with the selection result, and receiving channel information generated based on the reference signal measurement information from the terminal.

公开(公告)号：US09282554B2

公开(公告)日：2016-03-08

申请号：US14519808

申请日：2014-10-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyoungju Ji ,  Younsun Kim ,  Joonyoung Cho ,  Juho Lee

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

CPC classification number: H04W72/042 ,  H04L5/0048 ,  H04L5/0053 ,  H04W72/0406

Abstract: A control channel transmission/reception method and an apparatus for transmitting/receiving control channels using a resource allocation scheme applicable regardless of reference signal transmission or whether the reference signal is transmitted in distributed transmission mode or localized transmission mode are provided. The control channel transmission method includes mapping a Demodulation Reference Signal (DMRS) to Resource Elements (REs) of a Resource Block (RB) for transmitting a control channel, mapping the control channel to the REs numbered with numbers of predetermined number of Resource Element Groups (REGs) in a frequency-first ascending order cyclically, with the exception of the REs to which the DMRS is mapped, and transmitting the DMRS and the control channel.

公开(公告)号：US20150327095A1

公开(公告)日：2015-11-12

申请号：US14709027

申请日：2015-05-11

Applicant: Samsung Electronics Co., Ltd.

Inventor： Youngwoo KWAK ,  Younsun Kim ,  Hyojin Lee ,  Hyoungju Ji

IPC: H04W24/08 ,  H04B17/345 ,  H04B7/04

Abstract: A base station and a method thereof for acquiring channel status information in a mobile communication system operating in a multiuser multiple-input multiple-output transmission mode are provided. The method includes generating and transmitting, to a terminal, interference measurement configuration information for measuring interference caused by signals transmitted from a serving base station of the terminal to at least one other terminal in the transmission mode; and receiving channel status information generated using the transmitted information from the terminal. The present disclosure relates to a communication method and system for converging a 5th-Generation communication system for supporting higher data rates beyond a 4th-Generation system with a technology for Internet of Things, and may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services.

Abstract translation: 提供了一种用于在以多用户多输入多输出传输模式操作的移动通信系统中获取信道状态信息的基站及其方法。 该方法包括：向终端生成和发送干扰测量配置信息，用于测量由发射模式中从终端的服务基站发送到至少一个其他终端的信号引起的干扰; 以及从所述终端接收使用所发送的信息生成的信道状态信息。 本公开涉及一种用于通过物联网技术来融合第五代通信系统以支持更高数据速率超越第四代系统的通信方法和系统，并且可以应用于基于5G通信技术的智能业务 智能家居，智能建筑，智能城市，智能车，连接车，医疗保健，数字教育，智能零售，安全和安全服务等物联网相关技术。

公开(公告)号：US09072054B2

公开(公告)日：2015-06-30

申请号：US13721780

申请日：2012-12-20

Applicant: Samsung Electronics Co. Ltd.

Inventor： Hyoungju Ji ,  Younsun Kim ,  Joonyoung Cho ,  Seunghoon Choi ,  Kiil Kim ,  Hyojin Lee

IPC: H04W52/04 ,  H04W52/38 ,  H04W52/18 ,  H04W52/14 ,  H04W52/24

CPC classification number: H04W52/04 ,  H04W52/143 ,  H04W52/243 ,  H04W52/38

Abstract: A downlink power control method and apparatus for improving downlink power efficiency gain in an Orthogonal Frequency Division Multiplexing (OFDM) system is provided. The downlink power control method includes transmitting a downlink data channel at a normal subframe according to first downlink power information for the normal subframe, and transmitting the downlink data channel at an Almost Blank Subframe (ABS) according to second downlink power information for the ABS, wherein the first downlink power information for the normal subframe and the second downlink power information for the ABS differ from each other. The downlink power control method and apparatus is capable of regulating inter-cell interference variation between contiguous symbols at a predetermined level in a subframe at a terminal of a neighbor cell and making it possible to schedule the UE receiving the low power data channel using the power ratio of the feedbacks from the UE.

Abstract translation: 提供了一种用于改善正交频分复用（OFDM）系统中的下行链路功率效率增益的下行链路功率控制方法和装置。 下行链路功率控制方法包括根据用于正常子帧的第一下行链路功率信息在正常子帧发送下行链路数据信道，并且根据ABS的第二下行链路功率信息，在几乎空白子帧（ABS）下发送下行链路数据信道， 其中用于正常子帧的第一下行链路功率信息和用于ABS的第二下行链路功率信息彼此不同。 下行链路功率控制方法和装置能够调节相邻小区的终端的子帧中预定级别的连续符号之间的小区间干扰变化，并且使得能够使用该功率来调度UE接收低功率数据信道 来自UE的反馈比例。

公开(公告)号：US09059757B2

公开(公告)日：2015-06-16

申请号：US14201651

申请日：2014-03-07

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

Inventor： Hyoungju Ji ,  Chanbyoung Chae ,  Younsun Kim ,  Juho Lee ,  Hyojin Lee

IPC: H04B7/02 ,  H04B7/04 ,  H04B7/06

CPC classification number: H04B7/0456 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/0639

Abstract: A method and apparatus for transmitting and receiving signals is provided for use in a codebook-based closed-loop multiple antenna system. A method for receiving signals in a codebook-based multiple antenna system according to the present disclosure includes estimating a desired signal and an interference channel, determining a codebook index using the desired channel, a Hermitian of the desired channel, and the interference channel, and feeding back the codebook index to a transmitter. The multi-antenna system of the present disclosure is advantageous in suppressing the interference from other cells and maximizing the gain of the desired signal especially when the number of receive antennas is greater than the reception streams and in designing a codebook with high performance as compared to the Grassmanian codebook and low complexity.

Abstract translation: 提供用于发送和接收信号的方法和装置，用于基于码本的闭环多天线系统。 在根据本公开的基于码本的多天线系统中接收信号的方法包括估计期望的信号和干扰信道，使用期望的信道确定码本索引，期望信道的密码和干扰信道，以及 将码本索引反馈给发射机。 本公开的多天线系统有利于抑制来自其他小区的干扰并最大化期望信号的增益，特别是当接收天线的数量大于接收流并且设计具有高性能的码本时，与 Grassmanian码本和低复杂性。

公开(公告)号：US08942125B2

公开(公告)日：2015-01-27

申请号：US13625113

申请日：2012-09-24

Applicant: Samsung Electronics Co. Ltd.

Inventor： Hyojin Lee ,  Juho Lee ,  Kiil Kim ,  Younsun Kim

IPC: H04L12/26 ,  H04L25/02 ,  H04L5/00

CPC classification number: H04W72/085 ,  H04B7/024 ,  H04B7/0626 ,  H04L5/0007 ,  H04L5/0035 ,  H04L5/0048 ,  H04L25/0204 ,  H04W24/10 ,  H04W72/042

Abstract: A method and an apparatus for transmitting and receiving a feedback signal in a cellular mobile communication system is provided. The method of transmitting feedback in a Cooperative Multi-Point (CoMP) system, includes receiving feedback set information including allocation information of a Channel Status Information Reference Signal (CSI-RS) transmitted for estimating a channel of a User Equipment (UE), receiving IDentification (ID) information for identifying a CoMP set including CSI-RS allocation information from a cell operating in a CoMP mode, extracting the CoMP set using the ID information and a feedback set, detecting a first feedback mode and first feedback timing with a first CSI-RS not included in the CoMP set among CSI-RSs included in the feedback set, and generating and transmitting feedback with respect to the first CSI-RS according to the detected first feedback mode and the first feedback timing.

Abstract translation: 提供了一种用于在蜂窝移动通信系统中发送和接收反馈信号的方法和装置。 在协同多点（CoMP）系统中发送反馈的方法包括：接收反馈集信息，包括发送用于估计用户设备（UE）的信道的信道状态信息参考信号（CSI-RS）的分配信息，接收 用于识别来自以CoMP模式运行的单元的CSI-RS分配信息的CoMP集合的识别（ID）信息，使用ID信息提取CoMP集合和反馈集合，用第一个反馈模式和第一反馈模式检测第一反馈模式和第一反馈定时 CSI-RS不包括在包括在反馈集合中的CSI-RS之间的CoMP集合中，并且根据检测到的第一反馈模式和第一反馈定时来生成和发送关于第一CSI-RS的反馈。

公开(公告)号：US20140301323A1

公开(公告)日：2014-10-09

申请号：US14309456

申请日：2014-06-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyojin LEE ,  Younsun Kim ,  Kiil Kim ,  Youngbum Kim

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/0406 ,  H04B7/024 ,  H04B17/24 ,  H04B17/309 ,  H04B17/336 ,  H04B17/382 ,  H04L5/0035 ,  H04L5/0048 ,  H04W28/04 ,  H04W48/20 ,  H04W72/082 ,  H04W72/085

Abstract: A feedback method and apparatus is provided for facilitating feedback in a Cooperative Multi-Point (CoMP) system in which multiple base stations cooperate with each other for downlink transmission to a terminal. The feedback method of a terminal includes determining whether the terminal is operating in cooperative multi-point mode for receiving data from a plurality of cells; estimating, when the terminal is operating in cooperative multi-point mode, channels of the cells belonging to a measurement set based on channel status information reference signals for the cells; selecting at least one best cell based on a signal-to-interference plus noise ratio based on the estimated channels; and feeding back a cell index and channel information of the best cell.

Abstract translation: 提供了一种反馈方法和装置，用于促进多个基站彼此协作以便下行链路传输到终端的协作多点（CoMP）系统中的反馈。 终端的反馈方法包括：确定终端是否以协作多点模式操作，用于从多个小区接收数据; 当终端以协同多点模式工作时，基于小区的信道状态信息参考信号估计属于测量集合的小区的信道; 基于估计的信道，基于信号与干扰加噪声比选择至少一个最佳小区; 并反馈最佳小区的小区索引和信道信息。