公开(公告)号：US09084229B2

公开(公告)日：2015-07-14

申请号：US14033217

申请日：2013-09-20

Applicant: LG ELECTRONICS INC.

Inventor： Jae Wan Kim ,  Wook Bong Lee ,  Su Nam Kim ,  Dong Guk Lim ,  Bin Chul Ihm

IPC: H04W72/08 ,  H04W24/02 ,  H04W72/02 ,  H04B7/02

CPC classification number: H04W72/02 ,  H04B7/024 ,  H04B7/026 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0495 ,  H04B7/0626 ,  H04B7/0632 ,  H04B7/0634 ,  H04B7/0639 ,  H04B17/345 ,  H04L1/0026 ,  H04L25/03904 ,  H04W24/02

Abstract: A method for reducing inter-cell interference and a method for transmitting a signal by a collaborative MIMO scheme, in a communication system having a multi-cell environment are disclosed. An example of a method for transmitting, by a mobile station, precoding information in a collaborative MIMO communication system includes determining a precoding matrix set including precoding matrices of one more base stations including a serving base station, based on signal strength of the serving base station, and transmitting information about the precoding matrix set to the serving base station. A mobile station in an edge of a cell performs a collaborative MIMO mode or inter-cell interference mitigation mode using the information about the precoding matrix set collaboratively with neighboring base stations.

公开(公告)号：US20140348093A1

公开(公告)日：2014-11-27

申请号：US14355196

申请日：2012-11-05

Applicant: LG ELECTRONICS INC.

Inventor： Bin Chul Ihm ,  Ki Tae Kim ,  Su Nam Kim ,  Ji Won Kang ,  Jin Young Chun ,  Sung Ho Park

IPC: H04W72/04

CPC classification number: H04W72/042 ,  H04L5/001 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0094 ,  H04W72/00

Abstract: Disclosed is a method and apparatus for searching for a user equipment searching for a control channel in a multi-node system. The method comprises: searching inside an E-PDCCH region for a first piece of downlink control information (DCI), which is determined according to a transmission mode; and searching inside the E-PDCCH region for a second piece of DCI, regardless of the transmission mode, wherein the E-PDCCH region is a control channel region to which the DCI, which is decoded on the basis of a user equipment-specific reference signal (URS), is transmitted from a subframe comprising a plurality of orthogonal frequency division multiplexing (OFDM) symbols.

Abstract translation: 公开了一种用于搜索在多节点系统中搜索控制信道的用户设备的方法和装置。 该方法包括：在E-PDCCH区域内搜索根据传输模式确定的第一条下行链路控制信息（DCI）; 以及在所述E-PDCCH区域内搜索第二条DCI，而不管所述传输模式如何，其中所述E-PDCCH区域是基于用户设备专用参考被解码的所述DCI的控制信道区域 信号（URS）从包括多个正交频分复用（OFDM）符号的子帧发送。

公开(公告)号：US08856606B2

公开(公告)日：2014-10-07

申请号：US13774860

申请日：2013-02-22

Applicant: LG Electronics Inc.

Inventor： Moon Il Lee ,  Hyun Soo Ko ,  Bin Chul Ihm ,  Wook Bong Lee ,  Jae Hoon Chung

IPC: H04J1/00 ,  H04W76/00 ,  H04L1/18 ,  H04L1/06 ,  H04W72/04 ,  H04B7/06 ,  H04B7/04

CPC classification number: H04W72/042 ,  H04B7/0452 ,  H04B7/0632 ,  H04L1/0025 ,  H04L1/0028 ,  H04L1/06 ,  H04L1/1822 ,  H04L1/1893 ,  H04L1/1896

Abstract: A method for specifying a transport block-to-codeword mapping relationship and a method for transmitting a downlink signal using the same are described. If a swap flag has a first logic value, a first transport block is mapped to a first codeword and a second transport block is mapped to a second codeword. If the swap flag has a second logic value, the first transport block is mapped to the second codeword and the second transport block is mapped to the first codeword. If the size of any one of two transport blocks is 0, the swap flag is not used.

Abstract translation: 描述了一种用于指定传输块到码字映射关系的方法和使用其传输下行链路信号的方法。 如果交换标志具有第一逻辑值，则将第一传输块映射到第一码字，并且将第二传输块映射到第二码字。 如果交换标志具有第二逻辑值，则将第一传输块映射到第二码字，并将第二传输块映射到第一码字。 如果两个传输块中的任何一个的大小为0，则不使用交换标志。

公开(公告)号：US20140247748A1

公开(公告)日：2014-09-04

申请号：US14351440

申请日：2012-10-12

Applicant: LG ELECTRONICS INC.

Inventor： Ji Won Kang ,  Jin Young Chun ,  Ki Tae Kim ,  Su Nam Kim ,  Bin Chul Ihm ,  Sung Ho Park

IPC: H04W24/08

CPC classification number: H04W24/08 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0639 ,  H04J11/0023 ,  H04L5/0023 ,  H04L5/0057 ,  H04L25/0226

Abstract: Provided are a method and apparatus for a UE (user equipment) to provide reference signal feedback in a wireless communication system. The method includes: receiving, from a base station, CSI-RS configuration information for configuring CSI-RS (channel state information reference signal) patterns, the CSI-RS configuration information containing usage information; performing a first measurement for radio resource management on all CSI-RS patterns configured based on the CSI-RS configuration information; and performing a second measurement only on CSI-RS patterns corresponding to the usage information, the second measurement being determined by the usage indicated by the usage information.

Abstract translation: 提供了一种用于UE（用户设备）在无线通信系统中提供参考信号反馈的方法和装置。 该方法包括：从基站接收用于配置CSI-RS（信道状态信息参考信号）模式的CSI-RS配置信息，所述CSI-RS配置信息包含使用信息; 对基于CSI-RS配置信息配置的所有CSI-RS模式进行无线电资源管理的第一测量; 并且仅对与所述使用信息相对应的CSI-RS模式进行第二测量，所述第二测量由所述使用信息指示的使用确定。

公开(公告)号：US08707120B2

公开(公告)日：2014-04-22

申请号：US13720914

申请日：2012-12-19

Applicant: LG Electronics Inc.

Inventor： Jin Young Chun ,  Dong Guk Lim ,  Sung Ho Park ,  Ja Ho Koo ,  Bin Chul Ihm ,  Wook Bong Lee

IPC: H04L1/18

CPC classification number: H04W72/04 ,  H04L1/1607 ,  H04L5/0016 ,  H04L5/0048 ,  H04L5/0055

Abstract: A method of transmitting an acknowledgment (ACK)/non-acknowledgement (NACK) signal in a wireless communication system includes assigning at least one ACK channel among a plurality of ACK channels which share an ACK channel region for transmitting the ACK/NACK signal, and transmitting the ACK/NACK signal through the at least one ACK channel, wherein the ACK channel region includes at least one tile including a plurality of data subcarriers, and the ACK/NACK signal of each ACK channel is indicated by mapping different orthogonal vectors respectively to the plurality of ACK channels in the tile.

Abstract translation: 在无线通信系统中发送确认（ACK）/非确认（NACK）信号的方法包括在共享用于发送ACK / NACK信号的ACK信道区域的多个ACK信道中分配至少一个ACK信道，以及 通过所述至少一个ACK信道发送所述ACK / NACK信号，其中所述ACK信道区域包括包括多个数据子载波的至少一个瓦片，并且通过将不同的正交向量分别映射到每个ACK信道的ACK / NACK信号 该瓦片中的多个ACK信道。

公开(公告)号：US20140016508A1

公开(公告)日：2014-01-16

申请号：US14033217

申请日：2013-09-20

Applicant: LG ELECTRONICS INC.

Inventor： Jae Wan Kim ,  Wook Bong Lee ,  Su Nam Kim ,  Dong Guk Lim ,  Bin Chul Ihm

IPC: H04W72/02

CPC classification number: H04W72/02 ,  H04B7/024 ,  H04B7/026 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0495 ,  H04B7/0626 ,  H04B7/0632 ,  H04B7/0634 ,  H04B7/0639 ,  H04B17/345 ,  H04L1/0026 ,  H04L25/03904 ,  H04W24/02

Abstract: A method for reducing inter-cell interference and a method for transmitting a signal by a collaborative MIMO scheme, in a communication system having a multi-cell environment are disclosed. An example of a method for transmitting, by a mobile station, precoding information in a collaborative MIMO communication system includes determining a precoding matrix set including precoding matrices of one more base stations including a serving base station, based on signal strength of the serving base station, and transmitting information about the precoding matrix set to the serving base station. A mobile station in an edge of a cell performs a collaborative MIMO mode or inter-cell interference mitigation mode using the information about the precoding matrix set collaboratively with neighboring base stations.

Abstract translation: 公开了一种在具有多小区环境的通信系统中减少小区间干扰的方法和通过协作MIMO方案发送信号的方法。 用于由移动站发送协作MIMO通信系统中的预编码信息的方法的示例包括基于服务基站的信号强度来确定包括包括服务基站的多个基站的预编码矩阵的预编码矩阵集合 并且将关于预编码矩阵集的信息发送到服务基站。 小区边缘的移动台使用与相邻基站协作的关于预编码矩阵集的信息执行协同MIMO模式或小区间干扰减轻模式。

公开(公告)号：US10419184B2

公开(公告)日：2019-09-17

申请号：US16247418

申请日：2019-01-14

Applicant: LG ELECTRONICS INC.

Inventor： Moon Il Lee ,  Ja Ho Koo ,  Jae Hoon Chung ,  Bin Chul Ihm ,  Hyun Soo Ko

IPC: H04L5/00 ,  H04W24/10 ,  H04W72/08

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.

公开(公告)号：US10020924B2

公开(公告)日：2018-07-10

申请号：US15702025

申请日：2017-09-12

Applicant: LG ELECTRONICS INC.

Inventor： Ji Won Kang ,  Jin Young Chun ,  Ki Tae Kim ,  Su Nam Kim ,  Bin Chul Ihm ,  Sung Ho Park

IPC: H04W4/00 ,  H04L5/00 ,  H04W76/04 ,  H04L1/00 ,  H04W72/04 ,  H04W74/00 ,  H04W76/27

CPC classification number: H04L5/0053 ,  H04L1/0026 ,  H04L1/0029 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0048 ,  H04L5/0057 ,  H04W72/04 ,  H04W72/0406 ,  H04W74/006 ,  H04W76/27

Abstract: A method is provided for receiving aperiodic channel state information (CSI). A base station (BS) transmits, to a user equipment (UE), an uplink downlink control information (DCI) format. The BS receives, from the UE, aperiodic CSI through a physical uplink shared channel (PUSCH) if the BS triggers an aperiodic CSI report using a CSI request field included in the uplink DCI format. The CSI request field is either a 1-bit field or a multi-bit field. When the UE is configured with only one cell, the 1-bit field is included in the uplink DCI. When the UE is configured with more than one channel state information-reference signal (CSI-RS), the multi-bit field is included in the uplink DCI.

公开(公告)号：US09992763B2

公开(公告)日：2018-06-05

申请号：US15222736

申请日：2016-07-28

Applicant: LG ELECTRONICS INC.

Inventor： Moon Il Lee ,  Jae Hoon Chung ,  Hyun Soo Ko ,  Bin Chul Ihm ,  Yeong Hyeon Kwon

IPC: G06F11/00 ,  H04J1/16 ,  H04L1/00 ,  H04L12/26 ,  H04W72/02 ,  H04B7/06 ,  H04W52/14 ,  H04W52/36 ,  H04W72/04 ,  H04W52/34 ,  H04B7/0404 ,  H04W52/32 ,  H04W52/42 ,  H04W52/24

CPC classification number: H04W72/02 ,  H04B7/0404 ,  H04B7/0691 ,  H04W52/146 ,  H04W52/242 ,  H04W52/325 ,  H04W52/346 ,  H04W52/367 ,  H04W52/42 ,  H04W72/0413 ,  H04W72/0473

Abstract: A user equipment in wireless communication system is provided. The user equipment includes an antenna unit including a plurality of antennas, a control unit for grouping the plurality of antennas into a predetermined number of antenna groups and controlling separately transmission power of each of the predetermined number of antenna groups, and a transmitting unit, connected to the control unit, for transmitting at least one of data and control information to a base station via at least one of the predetermined number of antenna groups.

公开(公告)号：US20180070351A1

公开(公告)日：2018-03-08

申请号：US15808700

申请日：2017-11-09

Applicant: LG ELECTRONICS INC.

Inventor： Hyun Soo Ko ,  Jae Hoon Chung ,  Bin Chul Ihm ,  Moon II Lee

IPC: H04W72/04 ,  H04L5/00 ,  H04B1/707 ,  H04B7/06

CPC classification number: H04W72/048 ,  H04B1/707 ,  H04B7/0413 ,  H04B7/0452 ,  H04B7/0665 ,  H04B2201/70701 ,  H04L5/0007 ,  H04L5/0051 ,  H04L5/0053

Abstract: The present invention relates to a method in which a user equipment receives a downlink signal from a base station in a wireless communication system that supports downlink mimo transmission according to one embodiment of the present invention comprises: receiving downlink control information that includes information indicative of the number of layers (n, 1≦n≦8) where one or two enabled code words of the downlink mimo transmission are mapped; on the basis of the downlink control information, receiving downlink data transmitted over the respective n layers and a ue-specific reference signal for each of the n layers; and decoding the downlink data on the basis of the ue-specific reference signals, wherein the information indicative of the number of layers can further include information on a code for identifying the ue-specific reference signals.