公开(公告)号：US20150163781A1

公开(公告)日：2015-06-11

申请号：US14625092

申请日：2015-02-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Younsun KIM ,  Cheng SHAN ,  Juho LEE ,  Hyojin LEE ,  Kiil KIM ,  Joonyoung CHO ,  Hyoungju JI ,  Sangmin RO ,  Seunghoon CHOI

IPC: H04W72/04

CPC classification number: H04W72/042 ,  H04B7/0456 ,  H04L1/00 ,  H04L1/02 ,  H04L5/0007 ,  H04L5/0053 ,  H04L27/00 ,  H04W72/0406

Abstract: A method for transmitting control information by a base station in a wireless communication system is provided. The method includes determining a precoder to be applied to a resource and a Demodulation Reference Signal (DMRS) port, the resource being used to transmit the control information, and the DMRS port corresponding to the resource and being used to transmit a DMRS, precoding the resource and the DMRS port by using the determined precoder, and transmitting the control information and the DMRS to a user equipment.

Abstract translation: 提供了一种用于在无线通信系统中由基站发送控制信息的方法。 该方法包括确定要应用于资源的预编码器和解调参考信号（DMRS）端口，用于发送控制信息的资源以及对应于该资源的DMRS端口并用于发送DMRS，对该DMRS进行预编码 资源和DMRS端口，并将控制信息和DMRS发送给用户设备。

公开(公告)号：US20150117385A1

公开(公告)日：2015-04-30

申请号：US14587510

申请日：2014-12-31

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyojin LEE ,  Juho LEE ,  Kiil KIM ,  Younsun KIM

IPC: H04W72/08 ,  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：US20140269519A1

公开(公告)日：2014-09-18

申请号：US13795710

申请日：2013-03-12

Applicant: SAMSUNG ELECTRONICS CO. LTD.

Inventor： Cheng SHAN ,  Younsun KIM ,  Kiil KIM ,  Hyojin LEE ,  Hyoungju JI ,  Youngbum KIM ,  Sangmin RO ,  Juho LEE ,  Joonyoung CHO ,  Seunghoon CHOI

IPC: H04W72/04

CPC classification number: H04L5/0053 ,  H04L5/0007 ,  H04L5/0051

Abstract: A control channel transmission/reception method and apparatus is provided. The base station of the present invention transmits configuration information on a control channel to a terminal, checks an aggregation level for use in transmitting the control channel, maps Demodulation Reference Signal (DMRS) to resource elements in a resource block depending on the aggregation level, determines, when the resource elements of the DMRS correspond to a first resource element set, whether to map the DMRS to resource elements corresponding to a second resource element set in the resource block, and transmits the DMRS and control channel to the terminal according to the determination result.

Abstract translation: 提供了一种控制信道发送/接收方法和装置。 本发明的基站向终端发送关于控制信道的配置信息，检查用于发送控制信道的聚合级别，根据聚合级别将解调参考信号（DMRS）映射到资源块中的资源元素， 确定当DMRS的资源元素对应于第一资源元素集合时，是否将DMRS映射到与资源块中设置的第二资源元素相对应的资源元素，并且根据所述DMRS和控制信道向终端发送DMRS和控制信道 确定结果。

公开(公告)号：US20130265955A1

公开(公告)日：2013-10-10

申请号：US13857555

申请日：2013-04-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Younsun KIM ,  Aris PAPASAKELLARIOU ,  Kiil KIM ,  Juho LEE ,  Hyojin LEE ,  Joonyoung CHO

IPC: H04W72/04

CPC classification number: H04W72/042 ,  H04B7/0413 ,  H04L5/0023 ,  H04L5/0051 ,  H04L5/0094 ,  H04W72/02 ,  H04W72/04 ,  H04W84/042

Abstract: A channel transmission/reception method and an apparatus for transmitting/receiving channels between a base station and a mobile terminal efficiently in a mobile communication supporting massive Multiple Input Multiple Output (MIMO) transmission are provided. The method includes determining a resource to which a Demodulation Reference Signal (DMRS) addressed to a terminal is mapped within a resource block, the DMRS resource being positioned in at least one of a first resource set capable of being allocated for DMRS and a second resource set symmetric with the first resource set on a time axis, and transmitting the DMRS and DMRS allocation information to the terminal.

Abstract translation: 提供了一种在支持大量多输入多输出（MIMO）传输的移动通信中有效地在基站和移动终端之间发送/接收信道的信道发送/接收方法和装置。 该方法包括确定寻址到终端的解调参考信号（DMRS）映射到资源块内的资源，DMRS资源位于能够被分配给DMRS的第一资源集和第二资源中的至少一个中 在时间轴上设置与第一资源集合对称，并将DMRS和DMRS分配信息发送到终端。

公开(公告)号：US20160014758A1

公开(公告)日：2016-01-14

申请号：US14861463

申请日：2015-09-22

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H04W72/04 ,  H04B17/309 ,  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: Methods and apparatuses are provided for transmitting channel information, by a UE. Information for at least one first type CSI-RS and information for at least one second type CSI-RS are identified. First channel information is generated based on 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. The first channel information is reported by PUCCH-based periodic channel information feedback. If a PDCCH including an indicator is received, second channel information is generated based on the first type CSI-RS and the second type CSI-RS. The second channel information is reported through a PUSCH. The indicator triggers a channel information report associated with the first type CSI-RS and the second type CSI-RS, among the at least one first type CSI-RS and the at least one second type CSI-RS.

Abstract translation: 提供了用于由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CSI-RS的信息和用于至少一个第二类型CSI-RS的信息。 在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之中，基于第一类型CSI-RS和第二类型CSI-RS产生第一信道信息。 通过基于PUCCH的周期性信道信息反馈来报告第一信道信息。 如果接收到包括指示符的PDCCH，则基于第一类型CSI-RS和第二类型CSI-RS生成第二信道信息。 通过PUSCH报告第二信道信息。 所述指示符在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之间触发与所述第一类型CSI-RS和所述第二类型CSI-RS相关联的信道信息报告。

公开(公告)号：US20160014733A1

公开(公告)日：2016-01-14

申请号：US14859987

申请日：2015-09-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Younsun KIM ,  Cheng SHAN ,  Kiil KIM ,  Hyojin LEE

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/042 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0091 ,  H04W72/0446

Abstract: In legacy systems such as 3rd Generation Partnership Project (3GPP) releases 8 to 10, the control channel is transmitted using the first few Orthogonal Frequency Division Multiplexing (OFDM) symbols in a subframe. The limited control channel capacity will impact the system performance in future releases as more and more User Equipments (UEs) will be scheduled in a subframe with technologies such as MulitUser-Multiple Input Multiple Output (MU-MIMO) and Coordinated Multipoint (CoMP) transmission being enhanced or introduced. A new Enhanced Control CHannel (E-CCH) is necessary to be designed, which will use the resource in the Physical Downlink Shared CHannel (PDSCH) in the legacy systems. The E-CCH will support UE-specific DeModulation Reference Signal (DMRS) based transmission and receiving. However, the configuration of DMRS for E-CCH is necessary to be known to UE in prior. This invention discloses multiple methods in which DMRS is configured for E-CCHs and respective eNB and UE behaviors.

公开(公告)号：US20160014732A1

公开(公告)日：2016-01-14

申请号：US14859930

申请日：2015-09-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Younsun KIM ,  Cheng SHAN ,  Kiil KIM ,  Hyojin LEE

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/042 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0091 ,  H04W72/0446

Abstract: In legacy systems such as 3rd Generation Partnership Project (3GPP) releases 8 to 10, the control channel is transmitted using the first few Orthogonal Frequency Division Multiplexing (OFDM) symbols in a subframe. The limited control channel capacity will impact the system performance in future releases as more and more User Equipments (UEs) will be scheduled in a subframe with technologies such as MulitUser-Multiple Input Multiple Output (MU-MIMO) and Coordinated Multipoint (CoMP) transmission being enhanced or introduced. A new Enhanced Control CHannel (E-CCH) is necessary to be designed, which will use the resource in the Physical Downlink Shared CHannel (PDSCH) in the legacy systems. The E-CCH will support UE-specific DeModulation Reference Signal (DMRS) based transmission and receiving. However, the configuration of DMRS for E-CCH is necessary to be known to UE in prior. This invention discloses multiple methods in which DMRS is configured for E-CCHs and respective eNB and UE behaviors.

公开(公告)号：US20130250788A1

公开(公告)日：2013-09-26

申请号：US13848953

申请日：2013-03-22

Applicant: SAMSUNG ELECTRONICS CO. LTD.

Inventor： Younsun KIM ,  Hyojin LEE ,  Juho LEE ,  Kiil KIM

IPC: H04W24/10

CPC classification number: H04W24/10 ,  H04J11/0023 ,  H04L5/005 ,  H04L5/0051 ,  H04W88/085

Abstract: An interference measurement method of a terminal is provided for facilitating downlink transmission in the mobile communication system based on Distributed Antenna System (DAS) in which multiple antennas controlled by a base station are distributed within the service area of the base station. The interference measurement method includes receiving channel measurement information and interference measurement information from a base station, receiving channel state information reference signals, calculating, when the received channel state information reference signal is for channel measurement, a received signal energy based on the channel measurement information and, when the received channel state information reference signal is for interference measurement, an interference based on the interference measurement information, generating channel quality information based on the received signal energy and the interference, and transmitting the channel quality information to the base station.

Abstract translation: 提供了一种终端的干扰测量方法，用于促进基于分布式天线系统（DAS）的移动通信系统中的下行链路传输，其中由基站控制的多个天线分布在基站的服务区域内。 干扰测量方法包括从基站接收信道测量信息和干扰测量信息，接收信道状态信息参考信号，当接收信道状态信息参考信号用于信道测量时，基于信道测量信息计算接收信号能量 并且当接收到的信道状态信息参考信号用于干扰测量时，基于干扰测量信息的干扰，基于接收信号能量和干扰产生信道质量信息，并向基站发送信道质量信息。

公开(公告)号：US20130163544A1

公开(公告)日：2013-06-27

申请号：US13728450

申请日：2012-12-27

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

Inventor： Hyojin LEE ,  Cheol MUN ,  Kiil KIM ,  Younsun KIM ,  Juho LEE ,  Joonyoung CHO

IPC: H04W72/04

CPC classification number: H04W72/04 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/0695 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/06 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0091 ,  H04L5/143

Abstract: Methods and apparatus are provided for beamforming and information feedback are provided. Signals for beams to be transmitted through corresponding antenna ports, are generated. The beams are formed by precoding the signals with beamforming vectors. The beams are sorted into a number of resource reuse groups based on a resource that is to be shared. The beams are transmitted, using resources allocated per group, to a receiver. Feedback information is generated on at least one antenna port, based on the received beams. The feedback information is transmitted to the transmitter. A beam is selected having a greatest gain for a transmitter using the feedback information. A transmission resource is allocated for the selected beam.

Abstract translation: 提供了波束形成和信息反馈的方法和装置。 产生用于通过相应的天线端口传输的波束的信号。 通过用波束形成向量对信号进行预编码来形成波束。 基于要共享的资源将光束分类为多个资源重用组。 使用每组分配的资源将光束传输到接收器。 基于所接收的波束，在至少一个天线端口上产生反馈信息。 反馈信息被发送到发送器。 选择使用反馈信息对于发射机具有最大增益的波束。 为所选择的光束分配传输资源。

公开(公告)号：US20130157709A1

公开(公告)日：2013-06-20

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

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。