公开(公告)号：US20170222708A1

公开(公告)日：2017-08-03

申请号：US15515112

申请日：2015-10-07

Applicant: LG ELECTRONICS INC.

Inventor： Jiwon KANG ,  Kitae KIM ,  Kilbom LEE ,  Heejin KIM

IPC: H04B7/06 ,  H04W72/04

CPC classification number: H04B7/0639 ,  H04B7/0478 ,  H04B7/0617 ,  H04B7/0632 ,  H04W72/048 ,  H04W84/042

Abstract: Disclosed in the present application is a method for a receiving end to report feedback information to a transmitting end in a wireless communication system. Specifically, the method comprises receiving, from a base station, a plurality of reference signals corresponding to a two-dimensional antenna array; determining the number of horizontal antenna ports and the number of vertical antenna ports which reflect the mobility of a receiving end, by using the horizontal channel and the vertical channel estimated based on the plurality of reference signals; calculating a horizontal dimensional control matrix and a vertical dimensional control matrix by using the determined numbers of horizontal antenna ports and vertical antenna ports; determining and reporting a horizontal precoding matrix, a vertical precoding matrix, and a three-dimensional channel link by using the horizontal dimensional control matrix, the vertical dimensional control matrix, the horizontal channel and the vertical channel.

公开(公告)号：US20170207834A1

公开(公告)日：2017-07-20

申请号：US15324168

申请日：2015-03-31

Applicant: LG ELECTRONICS INC.

Inventor： Jiwon KANG ,  Sunam KIM ,  Kitae KIM ,  Kilbom LEE ,  Heejin KIM

IPC: H04B7/0456 ,  H04L5/00 ,  H04B7/06 ,  H04W72/04

CPC classification number: H04B7/0456 ,  H04B7/0617 ,  H04B7/0626 ,  H04L5/0048 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/048

Abstract: The present application discloses a method for transmitting a signal from a transmitting end to a receiving end in a wireless communication system. Specifically, the method comprises the steps of: configuring a precoder set including one or more precoders; precoding the signal by cyclically applying the one or more precoders in a specific resource unit; and transmitting the precoded signal to the receiving end, wherein at least one of the size of the precoder set and the one or more precoders is determined on the basis of the mobility of the receiving end.

公开(公告)号：US20170202009A1

公开(公告)日：2017-07-13

申请号：US15326994

申请日：2015-03-10

Applicant: LG ELECTRONICS INC.

Inventor： Kitae KIM ,  Eunjong LEE ,  Giwon PARK ,  Jaehoon CHUNG ,  Jiwon KANG ,  Hyeyoung CHOI

IPC: H04W72/12 ,  H04W28/02 ,  H04W72/04

CPC classification number: H04W72/1284 ,  H04W28/0278 ,  H04W72/0413

Abstract: Disclosed herein are a method and apparatus for requesting scheduling in a wireless communication system. More specifically, a method of requesting scheduling for transmitting uplink data in a wireless communication system may include transmitting, by user equipment (UE), a Scheduling Request (SR) of an SR type selected from multiple SR types to an eNB, receiving, by the UE, an uplink grant determined according to the selected SR type from the eNB, and transmitting, by the UE, uplink data to the eNB through a physical uplink shared channel (PUSCH) resource allocated by the uplink grant.

公开(公告)号：US20170201309A1

公开(公告)日：2017-07-13

申请号：US15115562

申请日：2014-09-03

Applicant: LG ELECTRONICS INC.

Inventor： Jiwon KANG ,  Kitae KIM ,  Kilbom LEE

IPC: H04B7/06 ,  H04L5/00 ,  H04B7/04

CPC classification number: H04B7/0639 ,  H04B7/0413 ,  H04B7/0456 ,  H04B7/0478 ,  H04B7/0482 ,  H04B7/0486 ,  H04B7/0647 ,  H04B7/065 ,  H04B7/0695 ,  H04B7/088 ,  H04L1/0029 ,  H04L5/0048 ,  H04L25/0222 ,  H04W24/10

Abstract: A method for transmitting feedback information to a base station at a user equipment (UE) in a wireless communication system. The method includes receiving a pilot signal from the base station at a first time and a second time, selecting a first pre-coding matrix index corresponding to the first time and a second precoding matrix index corresponding to the second time from a predetermined codebook based on the pilot signal, and transmitting the feedback information including information about a variation value between the first precoding matrix index and the second precoding matrix index to the base station.

公开(公告)号：US20170163326A1

公开(公告)日：2017-06-08

申请号：US15325067

申请日：2015-06-30

Applicant: LG ELECTRONICS INC.

Inventor： Kitae KIM ,  Jiwon KANG ,  Kilbom LEE ,  Heejin KIM

IPC: H04B7/06 ,  H04W52/02

CPC classification number: H04B7/0617 ,  H04B7/0408 ,  H04B7/06 ,  H04B7/0639 ,  H04B7/0697 ,  H04W52/0206 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/21

Abstract: The present invention provides a hybrid-beamforming method for supporting multi-ranks, a beam estimation method and devices for supporting the methods. A hybrid-beamforming performance method for supporting multi-ranks in a wireless access system, according to one embodiment of the present invention, can comprise the steps of: detecting, by a transmission end, at least two analog beam candidates having a channel gain greater than or equal to a reference value; pre-compensating analog beam coefficients for at least two analog beam candidates such that one analog beam among the at least two analog beam candidates includes at least two digital beams; resetting digital PMI coefficient values for at least two digital beams so as to reflect the pre-compensated analog beam coefficients; and transmitting a multi-rank signal by using the pre-compensated analog beam coefficients and the reset digital PMI coefficient values. At this time, analog beamforming and digital beamforming are combined such that hybrid-beamforming can be performed.

公开(公告)号：US20170079022A1

公开(公告)日：2017-03-16

申请号：US15364168

申请日：2016-11-29

Applicant: LG ELECTRONICS INC.

Inventor： Kitae KIM ,  Jinyoung CHUN ,  Sunam KIM ,  Jiwon KANG ,  Binchul IHM ,  Sungho PARK

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/042 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0048 ,  H04L5/0053 ,  H04W72/12

Abstract: In a wireless communication system, when a terminal receives control information from a downlink subframe, which is divided into a Physical Downlink Control Channel (PDCCH) region and a Physical Downlink Shared Channel (PDSCH) region, in a wireless communication system, the receiving of the control information includes: receiving, from a base station, first CFI information indicating the number of Orthogonal Frequency Division Multiplexing (OFDM) symbols available for Physical Downlink Control Channel (PDCCH) transmission; receiving, from the base station, second CFI information indicating start OFDM symbol information available for Physical Downlink Shared Channel (PDSCH) transmission corresponding to an enhanced Physical Downlink Control Channel (E-PDCCH); and receiving the PDSCH from the base station on the basis of the first CFI information or the second CFI information. The PDCCH is placed in the PDCCH region of the downlink subframe, and the E-PDCCH is placed in the PDSCH region of the downlink subframe.

Abstract translation: 在无线通信系统中，当终端从无线通信系统中被分割为物理下行链路控制信道（PDCCH）区域和物理下行链路共享信道（PDSCH）区域的下行链路子帧接收到控制信息时， 控制信息包括：从基站接收指示可用于物理下行链路控制信道（PDCCH）传输的正交频分复用（OFDM）符号的数量的第一CFI信息; 从基站接收指示对应于增强物理下行链路控制信道（E-PDCCH）的物理下行链路共享信道（PDSCH）传输可用的起始OFDM符号信息的第二CFI信息; 以及基于第一CFI信息或第二CFI信息从基站接收PDSCH。 PDCCH被配置在下行链路子帧的PDCCH区域，E-PDCCH被配置在下行子帧的PDSCH区域中。

公开(公告)号：US20170033852A1

公开(公告)日：2017-02-02

申请号：US15302466

申请日：2015-02-17

Applicant: LG ELECTRONICS INC.

Inventor： Kitae KIM ,  Jiwon KANG ,  Kilbom LEE

IPC: H04B7/06 ,  H04B7/04

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

Abstract: A method of determining a weight for a beamforming by a base station in a wireless communication system according to one embodiment of the present invention may include determining an angle of an analog beamforming in a hybrid beamforming in which the analog beamforming and a digital beamforming are coupled, obtaining a pre-compensation component with respect to the analog beamforming to be applied to the digital beamforming based on the angle of the analog beamforming, and determining the weight of the digital beamforming using the obtained pre-compensation component with respect to the analog beamforming and an angle determination component of the digital beamforming

Abstract translation: 根据本发明的一个实施例的确定无线通信系统中的基站的波束成形的权重的方法可以包括确定混合波束形成中的模拟波束形成的角度，其中模拟波束成形和数字波束成形耦合 基于模拟波束形成的角度获得关于要应用于数字波束成形的模拟波束形成的预补偿分量，并且使用所获得的预补偿分量来确定相对于模拟波束成形的数字波束成形的权重 以及数字波束成形的角度确定部件

公开(公告)号：US20160344525A1

公开(公告)日：2016-11-24

申请号：US15115230

申请日：2014-06-26

Applicant: LG ELECTRONICS INC.

Inventor： Jiwon KANG ,  Kilbom LEE ,  Kitae KIM

IPC: H04L5/00 ,  H04B7/04 ,  H04W72/12

CPC classification number: H04L5/0048 ,  H04B7/0469 ,  H04B7/0478 ,  H04B7/065 ,  H04L5/0023 ,  H04L5/0028 ,  H04L5/006 ,  H04L5/0091 ,  H04W72/1226

Abstract: A method for transmitting a signal to a receiver by a transmitter in a wireless communication system is disclosed. The method includes transmitting information about a first non-precoded pilot signal and information about a second non-precoded pilot signal to the receiver, transmitting the first non-precoded pilot signal the second non-precoded pilot signal to the receiver, and transmitting one or more transmission streams to the receiver through first logical antenna ports and second logical antenna ports, wherein the number of the first logical antenna ports is less than or equal to the number of the second logical antenna ports, the first non-precoded pilot signal is a pilot signal for measuring channel state information at the receiver, and the second non-precoded pilot signal is a pilot signal for determining the number of the first logical antenna ports.

Abstract translation: 公开了一种在无线通信系统中由发射机向接收机发送信号的方法。 该方法包括将关于第一非预编码导频信号的信息和关于第二非预编码导频信号的信息发射到接收机，将第一非预编码导频信号发射到接收机的第二非预编码导频信号，以及发射一个或 通过第一逻辑天线端口和第二逻辑天线端口向接收机提供更多的传输流，其中第一逻辑天线端口的数量小于或等于第二逻辑天线端口的数量，第一非预编码导频信号是 导频信号，用于测量接收机的信道状态信息，第二非预编码导频信号是用于确定第一逻辑天线端口数量的导频信号。

公开(公告)号：US20160344463A1

公开(公告)日：2016-11-24

申请号：US15113999

申请日：2015-02-13

Applicant: LG ELECTRONICS INC.

Inventor： Kitae KIM ,  Jiwon KANG ,  Kilbom LEE

IPC: H04B7/06 ,  H04W72/04 ,  H04W16/28 ,  H04B7/04

CPC classification number: H04B7/0617 ,  H04B7/0456 ,  H04B7/0639 ,  H04W16/28 ,  H04W72/046

Abstract: A method of performing a beamforming in a base station of a wireless communication system according to one embodiment of the present invention may include determining an effective range of an analog beam based on a gain of an analog beam-forming in a hybrid beamforming, determining a precoding matrix for a digital beamforming in the hybrid beamforming based on the effective range of the analog beam, and performing the hybrid beamforming having the digital beamforming and the analog beam-forming coupled therein based on the effective range and the precoding matrix.

Abstract translation: 根据本发明的一个实施例的在无线通信系统的基站中执行波束成形的方法可以包括基于混合波束形成中的模拟波束形成的增益来确定模拟波束的有效范围，确定 基于模拟波束的有效范围的混合波束形成中的数字波束成形的预编码矩阵，以及基于有效范围和预编码矩阵执行数字波束形成和模拟波束形成的混合波束成形。

公开(公告)号：US20160337010A1

公开(公告)日：2016-11-17

申请号：US15154582

申请日：2016-05-13

Applicant: LG ELECTRONICS INC.

Inventor： Kyungmin PARK ,  Jiwon KANG ,  Kitae KIM ,  Kilbom LEE ,  Heejin KIM

IPC: H04B7/04 ,  H01Q21/29 ,  H01Q1/32 ,  H04L5/00 ,  H04W88/02

CPC classification number: H04B7/0404 ,  H01Q1/3275 ,  H01Q21/28 ,  H04B7/024 ,  H04L5/0055 ,  H04W88/02

Abstract: The present document is for a wireless communication with reduced internal signaling burden in the distributed antenna system (DAS). In the proposed method, a user equipment (UE) receives a first information unit from the network by a first distributed unit (DU) among multiple DUs distributed within the UE. The first DU reports reception information of the first information unit to a central unit (CU) of the UE, wherein the CU controls the multiple DUs. The first DU receives, from the CU, a direction regarding a transfer of the first information unit to the CU, and transfers the first information unit to the CU when the direction indicates a specific value.

Abstract translation: 本文件用于在分布式天线系统（DAS）中减少内部信令负担的无线通信。 在所提出的方法中，用户设备（UE）通过UE内分布的多个分组中的第一分布式单元（DU）从网络接收第一信息单元。 第一DU将第一信息单元的接收信息报告给UE的中央单元（CU），其中CU控制多个PDU。 第一DU从CU接收关于将第一信息单元传送到CU的方向，并且当方向指示特定值时将第一信息单元传送到CU。