公开(公告)号：US20160007328A1

公开(公告)日：2016-01-07

申请号：US14852807

申请日：2015-09-14

Applicant: LG ELECTRONICS INC.

Inventor： Moon Il LEE ,  Wook Bong LEE ,  Jae Hoon CHUNG ,  Hyun Soo KO ,  Bin Chul IHM

IPC: H04W72/04 ,  H04L25/03 ,  H04B7/04 ,  H04L5/00

CPC classification number: H04W72/042 ,  H04B7/0413 ,  H04B7/0452 ,  H04B7/0689 ,  H04J11/0026 ,  H04L5/0023 ,  H04L5/0048 ,  H04L25/03343 ,  H04L27/261 ,  H04W52/143 ,  H04W52/325 ,  H04W88/08

Abstract: A technique for receiving and transmitting downlink reference signals is disclosed. When transmitting downlink data demodulation reference signals (DMRS) (or reference signals for downlink data demodulation) by using two or more layers, the DMRS of each layer may be multiplexed by using a code division multiplexing method and then transmitted. The DMRS for each of the two or more layers may be used for one user equipment or for two or more user equipments. And, downlink control signals for transmitting and receiving such DMRS may be configured to have the same format regardless of a single-user mode (or SU-MIMO mode) or a multi-user mode (or MU-MIMO mode), thereby being used.

公开(公告)号：US20150304076A1

公开(公告)日：2015-10-22

申请号：US14752498

申请日：2015-06-26

Applicant: LG ELECTRONICS INC.

Inventor： Moon Il LEE ,  Jaho KOO ,  Jae Hoon CHUNG ,  Bin Chul IHM ,  Hyunsoo KO

IPC: H04L5/00 ,  H04W72/04 ,  H04W72/08

CPC classification number: H04L5/005 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0053 ,  H04W24/10 ,  H04W72/085

Abstract: A method of transmitting a reference signal by a base station in a wireless communication system is provided. The method includes: generating a plurality of reference signals for channel measurement, wherein the plurality of reference signals for channel measurement are different types; and transmitting the plurality of reference signals for channel measurement, wherein the plurality of reference signals for channel measurement are transmitted using one or more subframes as a duty cycle.

Abstract translation: 提供了一种在无线通信系统中由基站发送参考信号的方法。 该方法包括：生成用于信道测量的多个参考信号，其中用于信道测量的多个参考信号是不同的类型; 以及发送用于信道测量的多个参考信号，其中用于信道测量的多个参考信号是使用一个或多个子帧作为占空比发送的。

公开(公告)号：US20150304009A1

公开(公告)日：2015-10-22

申请号：US14753594

申请日：2015-06-29

Applicant: LG Electronics Inc.

Inventor： Ji Won KANG ,  Bin Chul IHM ,  Jin Young CHUN

IPC: H04B7/06 ,  H04B7/02

CPC classification number: H04B7/0626 ,  H04B7/022 ,  H04B7/0691 ,  H04B7/0834

Abstract: A method of receiving a reference signal by a user equipment. A first channel state information-reference signal (CSI-RS) configuration related to a discovery of a transmission point is received. A second CSI-RS configuration related to a CSI measurement is received. A CSI-RS according to the first CSI-RS configuration or the second CSI-RS configuration is received. Feedback information is transmitted to a base station. If the CSI-RS has been received according to the first CSI-RS configuration, the feedback information includes information on a CSI-RS received strength. If the CSI-RS has been received according to the second CSI-RS configuration, the feedback information includes a result of the CSI measurement.

Abstract translation: 一种用户设备接收参考信号的方法。 接收与发送点的发现相关的第一信道状态信息参考信号（CSI-RS）配置。 接收与CSI测量相关的第二CSI-RS配置。 接收根据第一CSI-RS配置或第二CSI-RS配置的CSI-RS。 反馈信息被发送到基站。 如果已经根据第一CSI-RS配置接收到CSI-RS，则反馈信息包括关于CSI-RS接收强度的信息。 如果已经根据第二CSI-RS配置接收到CSI-RS，则反馈信息包括CSI测量的结果。

公开(公告)号：US20150263798A1

公开(公告)日：2015-09-17

申请号：US14679152

申请日：2015-04-06

Applicant: LG ELECTRONICS INC.

Inventor： Hyun Soo KO ,  Bin Chul IHM ,  Jin Young CHUN ,  Wook Bong LEE ,  Moon Il LEE ,  Jae Wan KIM

IPC: H04B7/04 ,  H04W72/04

CPC classification number: H04B7/0452 ,  H04B7/0417 ,  H04B7/063 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/12 ,  H04L5/0023 ,  H04L5/0051 ,  H04L5/0053 ,  H04L25/0204 ,  H04L25/0228 ,  H04L27/2601 ,  H04W72/0406 ,  H04W72/0453

Abstract: A method of transmitting control information includes dividing frequency bandwidth into ranges to which the same PMI (precoding matrix index) is applied, obtaining multiple antenna information by the range to which the same PMI is applied and transmitting the multiple antenna information. Since multiple antenna information is transmitted by the unit of a range to which the same PMI is applied, radio resources allocated for transmitting the multiple antenna information may be reduced, thereby enhancing data transmission efficiency.

Abstract translation: 发送控制信息的方法包括将频带宽度划分到应用了相同PMI（预编码矩阵索引）的范围内，通过应用相同PMI的范围获得多个天线信息并发送多个天线信息。 由于多个天线信息通过应用相同PMI的范围的单位发送，所以可以减少分配用于发送多个天线信息的无线电资源，从而提高数据传输效率。

公开(公告)号：US20150237523A1

公开(公告)日：2015-08-20

申请号：US14703206

申请日：2015-05-04

Applicant: LG ELECTRONICS INC.

Inventor： Jin Young CHUN ,  Ki Tae KIM ,  Su Nam KIM ,  Ji Won KANG ,  Bin Chul IHM ,  Sung Ho PARK

IPC: H04W24/10 ,  H04L5/14 ,  H04L5/00

CPC classification number: H04W24/10 ,  H04J11/0023 ,  H04L5/00 ,  H04L5/0048 ,  H04L5/0057 ,  H04L5/14 ,  H04W24/00 ,  H04W24/02 ,  H04W24/08

Abstract: Provided are a method and apparatus for measuring interference in a wireless communication system. A terminal receives, from a base station, a zero-power channel state information (CSI) reference signal (RS) indicator that indicates whether or not to estimate interference using a zero-power CSI RS signal, and, according to the zero-power CSI RS indicator, measures interference on the basis of the zero-power CSI RS.

Abstract translation: 提供了一种用于测量无线通信系统中的干扰的方法和装置。 终端从基站接收指示是否使用零功率CSI RS信号估计干扰的零功率信道状态信息（CSI）参考信号（RS）指示符，并且根据零功率 CSI RS指标，基于零功率CSI RS测量干扰。

公开(公告)号：US20150098426A1

公开(公告)日：2015-04-09

申请号：US14535935

申请日：2014-11-07

Applicant: LG Electronics Inc.

Inventor： Moon IL LEE ,  Hyun Soo KO ,  Bin Chul IHM ,  Wook Bong LEE ,  Jae Hoon CHUNG ,  Jin Young CHUN

IPC: H04W72/04

CPC classification number: H04B7/0456 ,  H04B7/0417 ,  H04B7/0634 ,  H04B7/0636 ,  H04B7/0639 ,  H04B7/0665 ,  H04L1/0026 ,  H04L1/0028 ,  H04L1/0072 ,  H04L1/0618 ,  H04L1/1664 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0053 ,  H04L25/06 ,  H04L27/2607 ,  H04W72/0413 ,  H04W72/042

Abstract: A method for efficiently transmitting and receiving downlink control information is disclosed. The method includes, at a base station, receiving feedback information including a precoding matrix index (PMI) from a user equipment (UE) and transmitting precoding information having a predetermined bit number according to the number of antenna ports and a transmission mode of the base station. The precoding information of a predetermined transmission mode in the precoding information includes confirmation information indicating that the base station uses a PMI which is recently received from the UE.

Abstract translation: 公开了一种高效地发送和接收下行链路控制信息的方法。 该方法包括：在基站处，从用户设备（UE）接收包括预编码矩阵索引（PMI）的反馈信息，并根据天线端口的数量和基站的传输模式发送具有预定比特数的预编码信息 站。 预编码信息中的预定传输模式的预编码信息包括指示基站使用最近从UE接收的PMI的确认信息。

公开(公告)号：US20140364113A1

公开(公告)日：2014-12-11

申请号：US14446610

申请日：2014-07-30

Applicant: LG ELECTRONICS INC.

Inventor： Ji Won KANG ,  Bin Chul IHM ,  Jin Young CHUN

IPC: H04W16/14

CPC classification number: H04B7/0417 ,  H04B7/022 ,  H04B7/061 ,  H04B7/0626 ,  H04B7/0639 ,  H04B7/0691 ,  H04W16/14 ,  H04W16/26 ,  H04W72/0413 ,  H04W72/042

Abstract: The present invention relates to a terminal which receives signals from a base station, and to a method in which the terminal receives signals from the base station in a distributed antenna system (DAS). The terminal receives, from the base station having a plurality of antennas, control information on one or more active transmission antennas allocated to the terminal, from among the plurality of antennas, and receives signals from the base station via said one or more active transmission antennas.

Abstract translation: 本发明涉及从基站接收信号的终端，以及终端在分布式天线系统（DAS）中从基站接收信号的方法。 终端从具有多个天线的基站接收从多个天线中分配给终端的一个或多个有源发射天线的控制信息，并经由所述一个或多个有源发射天线从基站接收信号 。

公开(公告)号：US20140254570A1

公开(公告)日：2014-09-11

申请号：US14280375

申请日：2014-05-16

Applicant: LG ELECTRONICS INC.

Inventor： Joon Kui AHN ,  Ki Jun KIM ,  Bin Chul IHM ,  Young Woo YUN

IPC: H04W72/04

CPC classification number: H04W72/0446 ,  H04L27/2646 ,  H04L27/2655 ,  H04W56/003 ,  H04W56/0045 ,  H04W88/02

Abstract: A method of a user equipment (UE) operating in a wireless communication system and the user equipment are discussed. The method includes receiving a timing advance command for indicating a change of uplink timing relative to a current uplink timing in a subframe; and when uplink transmissions in a subframe n and a subframe n+1 are overlapped due to the timing advance command, transmitting the subframe n completely.

Abstract translation: 讨论了在无线通信系统和用户设备中操作的用户设备（UE）的方法。 该方法包括接收用于指示相对于子帧中的当前上行链路定时的上行链路定时的改变的定时提前命令; 并且当子帧n和子帧n + 1中的上行链路传输由于定时提前命令而重叠时，完全发送子帧n。

公开(公告)号：US20140219213A1

公开(公告)日：2014-08-07

申请号：US14246947

申请日：2014-04-07

Applicant: LG ELECTRONICS INC.

Inventor： Hyun Soo KO ,  Moon Il LEE ,  Ja Ho KOO ,  Jae Hoon CHUNG ,  Bin Chul IHM

IPC: H04W72/04 ,  H04B7/04

CPC classification number: H04W72/042 ,  H04B7/04 ,  H04B7/0413 ,  H04W88/02 ,  H04W88/08

Abstract: A method and apparatus for transmitting a downlink signal in a multiple input multiple output (MIMO) wireless communication system is disclosed. A method for receiving a downlink signal from a base station to a user equipment in a multiple input multiple output (MIMO) system, which supports dual layer transmission based on first and second antenna ports, comprises receiving downlink control information (DCI) through a downlink control channel; and receiving downlink data through a downlink data channel, the downlink data including one or more of a first transport block and a second transport block, wherein the downlink control information includes a new data indicator (NDI) for each of the first and second transport blocks, and if the first transport block is disabled and the second transport block is enabled, the new data indicator for the first transport block indicates an antenna port through which the second transport block is received.

Abstract translation: 公开了一种用于在多输入多输出（MIMO）无线通信系统中发送下行链路信号的方法和装置。 一种用于在支持基于第一和第二天线端口的双层传输的多输入多输出（MIMO）系统中从基站向用户设备接收下行链路信号的方法包括通过下行链路接收下行链路控制信息（DCI） 控制通道; 并且通过下行链路数据信道接收下行链路数据，所述下行链路数据包括第一传输块和第二传输块中的一个或多个，其中所述下行链路控制信息包括用于所述第一和第二传输块中的每一个的新数据指示符（NDI） ，并且如果第一传输块被禁用并且第二传输块被使能，则用于第一传输块的新数据指示符指示接收第二传输块的天线端口。

公开(公告)号：US20140204855A1

公开(公告)日：2014-07-24

申请号：US14141249

申请日：2013-12-26

Applicant: LG ELECTRONICS INC.

Inventor： Jin Young Chun ,  Bin Chul IHM ,  Jin Sam KWAK ,  Ki Seon RYU

IPC: H04L5/00

CPC classification number: H04L5/0053 ,  H04B7/0632 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0641 ,  H04L1/0001 ,  H04L1/0025 ,  H04L5/0048

Abstract: A method of transmitting a feedback message in wireless communication system is provided. The method includes selecting N best subbands of M subbands according to CQI, where both M and N are a natural number and M is larger than N, generating multiple input multiple output (MIMO) information comprising N codebook indexes and N differential CQIs and transmitting the feedback message comprising the MIMO information.

Abstract translation: 提供了一种在无线通信系统中发送反馈消息的方法。 该方法包括根据CQI选择M个子带的N个最佳子带，其中M和N都是自然数，M大于N，产生包括N个码本索引和N个差分CQI的多输入多输出（MIMO）信息，并发送 反馈消息包括MIMO信息。