公开(公告)号：US20180077730A1

公开(公告)日：2018-03-15

申请号：US15553972

申请日：2016-03-07

Applicant: LG ELECTRONICS INC.

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

IPC: H04W74/08 ,  H04W56/00

CPC classification number: H04W74/0833 ,  H04J13/0055 ,  H04L5/0053 ,  H04W56/0005

Abstract: Provided are a method and an apparatus for detecting a random access channel (RACH) preamble on the basis of a plurality of zero-correlation zones (ZCZ) in a wireless communication system. A user equipment (UE) transmits a RACH preamble, generated using a combination of a plurality of sequences corresponding to a plurality of zero-correlation zones, to an evolved NodeB (eNB). The evolved NodeB (eNB) detects a plurality of peaks from the RACH preamble and transmits a random access response to the UE.

公开(公告)号：US20170288835A1

公开(公告)日：2017-10-05

申请号：US15513710

申请日：2015-09-24

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/00 ,  H04W72/04

CPC classification number: H04L5/0048 ,  H04L5/0016 ,  H04L5/0023 ,  H04L5/0051 ,  H04L27/2613 ,  H04W72/042

Abstract: A method for transmitting, by a base station, a demodulation reference signal (DMRS) in a wireless communication system according to one embodiment of the present invention comprises the steps of generating a DMRS sequence; mapping the DMRS sequence to resource elements of respective layers; and transmitting, through respective antenna ports corresponding to the respective layers, the DMRS sequence mapped to the resource elements, wherein if the number of layers exceeds a predetermined number, the DMRS sequence is mapped to the resource elements according to a pattern on at least two bundled consecutive resource blocks.

公开(公告)号：US20170273063A1

公开(公告)日：2017-09-21

申请号：US15504896

申请日：2015-08-21

Applicant: LG ELECTRONICS INC.

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

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

CPC classification number: H04W72/046 ,  H04B7/0617 ,  H04B7/0695 ,  H04L1/1812 ,  H04L5/0005 ,  H04L5/005 ,  H04L5/0053 ,  H04W72/005 ,  H04W72/0446 ,  H04W88/02 ,  H04W88/08

Abstract: The present invention relates to a method and a device for transmitting a training symbol for hybrid beamforming. A method for transmitting a training symbol for estimating an analog beam in a wireless access system which supports hybrid beamforming according to one embodiment of the present invention comprises: a step of repeatedly transmitting a training symbol a number of times equivalent to the number of analog candidate beams; and a step of repeatedly transmitting a broadcasting channel a number of times equivalent to the number of analog candidate beams. A training symbol section, where the training symbol is transmitted, can be allocated to the same subframe as a subframe to which the repeatedly transmitted broadcasting channel is allocated.

公开(公告)号：US20170214507A1

公开(公告)日：2017-07-27

申请号：US15327945

申请日：2015-02-12

Applicant: LG ELECTRONICS INC.

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

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

CPC classification number: H04L5/0048 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0478 ,  H04B7/065 ,  H04L5/005 ,  H04L27/2613 ,  H04W72/0446

Abstract: Disclosed herein is a method for transmitting a reference signal from a base station to a user equipment (UE) in a wireless communication system. The method includes mapping the reference signal defined by a plurality of antenna ports to resource elements, applying precoding to the reference signal using different precoders according to the plurality of antenna ports, and transmitting the precoded reference signal to the UE.

公开(公告)号：US20170135093A1

公开(公告)日：2017-05-11

申请号：US15410493

申请日：2017-01-19

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: H04W72/0413 ,  H04L1/1861 ,  H04L1/1896 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0053 ,  H04L5/0055 ,  H04L5/0094 ,  H04W72/042

Abstract: A multiple distributed system is disclosed. An uplink control resource allocation method for a user equipment to transmit an Acknowledgement/Negative ACK (ACK/NACK) signal includes receiving one or more Enhanced-Physical Downlink Control Channels (E-PDCCHs), receiving one or more Physical Downlink Shared Channels (PDSCHs) corresponding to the one or more E-PDCCHs, and transmitting ACK/NACK signals for reception of the one or more PDSCHs through a Physical Uplink Control Channel (PUCCH), wherein Control Channel Element (CCE) indexes of the PUCCH transmitting the ACK/NACK signals are determined in consideration of first CCE indexes of the one or more E-PDCCHs and the number of CCEs of a PUCCH determined by a higher layer.

公开(公告)号：US20170134079A1

公开(公告)日：2017-05-11

申请号：US15316820

申请日：2014-06-25

Applicant: LG Electronics Inc.

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

IPC: H04B7/0456 ,  H04B7/04

CPC classification number: H04B7/0456 ,  H04B7/0421 ,  H04B7/0604 ,  H04B7/0617 ,  H04B7/0639

Abstract: Disclosed in the present invention is a method for a transmitting end transmitting a signal in a wireless communication system. Specifically, the method comprises the steps of: transmitting, to a receiving end, a first reference signal for providing a reference beam which is equal in all directions, and a second reference signal for providing a boundary beam which heads toward a pre-set direction; receiving, from the receiving end, feedback information on the difference value between the reference beam gain and the boundary beam gain; estimating the mobility information of the receiving end on the basis of the amount of change in the difference value; and, by using the mobility information, performing beamforming for transmitting a signal to the receiving end.

公开(公告)号：US20170094647A1

公开(公告)日：2017-03-30

申请号：US15377969

申请日：2016-12-13

Applicant: LG ELECTRONICS INC.

Inventor： Hyunsoo KO ,  Kitae KIM ,  Jaehoon CHUNG

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/042 ,  H04L1/0031 ,  H04L1/1896 ,  H04L5/0048 ,  H04L5/0053 ,  H04W72/0406 ,  H04W72/044

Abstract: An embodiment of the present invention relates to a method in which a terminal receives control information in a wireless communication system, said method comprising: a step of performing blind decoding in at least one portion of a resource region except the time unit indicated by a physical control format indicator channel (PCFICH) on a subframe, said at least one portion of the resource region is determined by whether a synchronizing signal or system information is transmitted or not.

公开(公告)号：US20170093474A1

公开(公告)日：2017-03-30

申请号：US15308214

申请日：2015-05-13

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/04 ,  H04B7/08 ,  H04B17/24 ,  H04B7/06

CPC classification number: H04B7/0486 ,  H04B7/04 ,  H04B7/0632 ,  H04B7/08 ,  H04B17/24

Abstract: A parameter determination method and a MIMO receiver are disclosed, wherein the parameter determination method estimates a channel correlation with respect to a plurality of REs using information about channels of the plurality of REs included in a resource region allocated by a MIMO transmitter; determines a downlink signal rank taking account of the channel correlation; and transmits information about the determined rank to the MIMO transmitter.

公开(公告)号：US20170079050A1

公开(公告)日：2017-03-16

申请号：US15309151

申请日：2015-04-30

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/08 ,  H04B7/04 ,  H04L5/00 ,  H04W72/04

CPC classification number: H04W72/082 ,  H04B7/0404 ,  H04B7/0413 ,  H04B7/08 ,  H04L5/0023 ,  H04L5/0048 ,  H04W72/046 ,  H04W72/048

Abstract: Disclosed are a method and a receiver for processing a received signal, the method dividing a plurality of resource elements (RE) to create RE groups by considering the inter-relationships between the channels of the plurality of REs, selecting a reference RE for each RE group, and generating, for each RE group, a detection signal from a received signal on the basis of channel information of the reference RE.

Abstract translation: 公开了一种用于处理接收信号的方法和接收器，该方法通过考虑多个RE的信道之间的相互关系来划分多个资源元素（RE）以创建RE组，为每个RE选择参考RE 并且基于参考RE的频道信息，从每个RE组生成来自接收信号的检测信号。

公开(公告)号：US20170012693A1

公开(公告)日：2017-01-12

申请号：US15121335

申请日：2014-12-15

Applicant: LG ELECTRONICS INC.

Inventor： Kilbom LEE ,  Jiwon KANG ,  Kitae KIM

IPC: H04B7/08 ,  H04L5/00 ,  H04L12/26

CPC classification number: H04B7/086 ,  H04B7/0413 ,  H04B7/0617 ,  H04B7/0848 ,  H04L5/0023 ,  H04L43/028 ,  H04L43/16

Abstract: Disclosed herein is a received signal processing method including selecting a reference resource element (RE) from a resource block (RB) including a plurality of REs, generating a common filter to be shared among some or all of the plurality of REs of the RB based on channel information of the reference RE, selecting a first border RE, at which the number of repetitions of a compensation process of a primary signal generated using the common filter exceeds a threshold while progressing starting from the reference RE along any one of a time or frequency axis direction, and a second border RE, at which the number of repetition of the compensation process of the primary signal generated using the common filter exceeds the threshold while progressing starting from the first border RE along the other of the time or frequency axis direction, from the RB and forming an RE group sharing the common filter based on the first border RE and the second border RE.

Abstract translation: 这里公开了一种接收信号处理方法，包括从包括多个RE的资源块（RB）中选择参考资源元素（RE），生成要在所述RB的所述多个RE中的一些或全部中共享的公共滤波器 在参考RE的通道信息上，选择第一边界RE，在该第一边界RE处，使用公共滤波器生成的主信号的补偿处理的重复次数超过阈值，同时从参考RE开始沿着一个时间段或 频率轴方向和第二边界RE，在该第二边界RE处，使用公共滤波器生成的主信号的补偿处理的重复次数超过阈值，同时沿着时间或频率轴方向的另一个从第一边界RE开始 ，并且基于第一边界RE和第二边界RE形成共享公共滤波器的RE组。