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111.发明申请公开(公告)号：US20180083719A1
公开(公告)日：2018-03-22
申请号：US15561384
申请日：2016-03-23
Applicant: LG ELECTRONICS INC.
Inventor： Kitae KIM , Jiwon KANG , Kilbom LEE , Kungmin PARK , Heejin KIM
CPC classification number: H04B17/104 , H04B7/04 , H04B7/0617 , H04B7/0695 , H04B17/318 , H04L25/02 , H04L25/0222
Abstract: Provided is a method for estimating a Doppler frequency in a wireless communication system that operates in a millimeter wave (mmWave) bandwidth. A receiver implements a beam scanning process by using a plurality of preambles corresponding respectively to a plurality of beams to which mutually different beam forming is applied, and estimates a Doppler frequency for each of the plurality of beams. The plurality of preambles may correspond respectively to the beam forming directions of the plurality of beams.
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公开(公告)号：US20180077662A1
公开(公告)日：2018-03-15
申请号：US15561634
申请日：2016-03-29
Applicant: LG ELECTRONICS INC.
Inventor： Kitae KIM , Jiwon KANG , Kilbom LEE , Kungmin PARK , Heejin KIM
Abstract: Provided are a method and an apparatus for transmitting, on the basis of a repeating pattern, a synchronization signal in a wireless communication system. A base station divides a cell into multiple sectors and transmits multiple types of synchronization signals, which respectively correspond to the multiple sectors and have different repeating patterns, to a terminal through a system frame. The terminal performs detection of the multiple types of synchronization signals having the different repeating patterns and determines the position of the terminal within the cell according to the detected synchronization signals.
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公开(公告)号：US20170353221A1
公开(公告)日：2017-12-07
申请号：US15541684
申请日：2015-06-23
Applicant: LG ELECTRONICS INC.
Inventor： Jiwon KANG , Kitae KIM , Kilbom LEE , Kungmin PARK , Heejin KIM
CPC classification number: H04B7/0626 , H04B7/0404 , H04B7/0413 , H04B7/0469 , H04B7/0634 , H04B7/0639 , H04B7/10 , H04B17/24 , H04B17/309 , H04B17/318 , H04B17/345 , H04L5/0048 , H04W72/1226 , H04W88/02 , H04W88/08
Abstract: The present application discloses a method for a terminal reporting channel state information to a base station in a wireless communication system. Specifically, the method comprises the steps of: receiving, from a base station, a plurality of first reference signals corresponding to a row or a column of a transmission antenna array, and a second reference signal for measuring cross polarization characteristics; calculating first precoders of each of the plurality of first reference signals, and connection coefficient information between the first precoders; generating cross polarization characteristics information by using the second reference signal; and reporting, to the base station, channel state information comprising the first precoders, the connection coefficient information, and the cross polarization characteristics information.
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114.发明申请公开(公告)号：US20170272223A1
公开(公告)日：2017-09-21
申请号：US15505496
申请日：2015-06-25
Applicant: LG ELECTRONICS INC.
Inventor： Kitae KIM , Jiwon KANG , Kilbom LEE , Heejin KIM
CPC classification number: H04L5/0048 , H04B7/0617 , H04B7/0639 , H04B7/0695 , H04B7/08 , H04B7/088 , H04W72/046 , H04W88/02 , H04W88/08
Abstract: A method for determining a weight for hybrid beamforming by a base station in a wireless communication system according to an embodiment of the present invention comprises the steps of: signaling, to a terminal, a configuration for repeatedly transmitting a first omni-directional beam equally formed in all directions; receiving the first omni-directional beam from the terminal by forming a second omni-directional beam; repeatedly receiving the first omni-directional beam from the terminal by sequentially forming a plurality of directional beams corresponding to a plurality of directions; and determining a weight for hybrid beamforming on the basis of a gain difference between the first omni-directional beam received through the second omni-directional beam and the first omni-directional beam received through a first directional beam among the plurality of directional beams.
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公开(公告)号：US20170215201A1
公开(公告)日：2017-07-27
申请号：US15328840
申请日：2015-03-10
Applicant: LG ELECTRONICS INC.
Inventor： Kitae KIM , Eunjong LEE , Giwon PARK , Jaehoon CHUNG , Jiwon KANG , Hyeyoung CHOI
CPC classification number: H04W72/1268 , H04L1/0026 , H04L1/0625 , H04L1/1692 , H04L1/1812 , H04L5/001 , H04L5/005 , H04L5/0051 , H04L5/0055 , H04L27/26 , H04L27/2613 , H04W72/14
Abstract: Disclosed herein are a method and apparatus for transmitting uplink data in a wireless communication system. More specifically, a method of transmitting uplink data in a wireless communication system may include mapping, by user equipment (UE), uplink data to a Segmented Physical Resource Block (SPRB), mapping, by the UE, a Demodulation Reference Signal (DMRS) related to the SPRB to a Physical Resource Block (PRB) to which the SPRB belongs, and transmitting, by the UE, the uplink data and the DMRS to a eNB. The SPRB may be defined as a set of resource elements segmented from a pair of the PRBs in a time domain, and the DMRS may be generated using a cyclic shift value predetermined corresponding to the SPRB.
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Patent Agency Ranking
公开(公告)号：US20170163325A1
公开(公告)日：2017-06-08
申请号：US15115647
申请日：2014-06-24
Applicant: LG ELECTRONICS INC.
Inventor： Jiwon KANG , Kibom LEE , Kitae KIM
CPC classification number: H04B7/0617 , H04B7/0619 , H04L5/0048 , H04L25/0202 , H04W72/02 , H04W88/02 , H04W88/08
Abstract: A method for transmitting feedback information to a base station by a user equipment, for massive antenna array based beamforming in a wireless communication system is disclosed. The method includes receiving information about a plurality of pilot patterns for a massive antenna array from the base station, estimating a plurality of channels corresponding to the plurality of pilot patterns by receiving a pilot signal based on the plurality of pilot patterns, and transmitting the feedback information for the plurality of channels to the base station, wherein the feedback information includes information about whether closed-loop beamforming or open-loop beamforming is applied to the plurality of channels and information about an effective antenna array for the plurality of channels.
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117.发明申请公开(公告)号：US20170141826A1
公开(公告)日：2017-05-18
申请号：US15321722
申请日：2014-06-26
Applicant: LG ELECTRONICS INC.
Inventor： Kitae KIM , Heejin KIM , Kilbom LEE , Jiwon KANG
CPC classification number: H04B7/0486 , H04B7/0482 , H04B7/0639 , H04W72/0453 , H04W72/06 , H04W88/02 , H04W88/08
Abstract: Disclosed in the present application is a method for a terminal reporting a precoding matrix index to a base station in a wireless communication system. Specifically, the method comprises the steps of: estimating a channel with the base station; on the basis of the estimated channel, selecting a first precoding matrix from a first codebook; on the basis of the estimated channel, selecting a second precoding matrix from a second codebook comprising only precoding matrixes which do not include the first precoding matrix; and reporting, to the base station, at least one among the index of the first precoding matrix and the index of the second precoding matrix.
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118.发明申请公开(公告)号：US20170134083A1
公开(公告)日：2017-05-11
申请号：US15318287
申请日：2014-09-03
Applicant: LG ELECTRONICS INC.
Inventor： Kitae KIM , Jiwon KANG , Kilbom LEE , Heejin KIM
IPC: H04B7/06 , H04B7/0456
CPC classification number: H04B7/0617 , H04B7/0417 , H04B7/0456 , H04B7/0695
Abstract: A method for, at a transmitter, transmitting a signal to a receiver in a wireless communication system is disclosed. The method includes transmitting a first reference signal for omni-directionally providing a uniform reference beam to the receiver, transmitting a second reference signal for providing beams respectively corresponding to a predetermined number of sectors to the receiver, receiving, from the receiver, sector information selected based on the second reference signal and information about a beam gain difference between a beam corresponding to the selected sector and the reference beam, and performing beamforming for transmitting a signal to the receiver based on the sector information and the information about the beam gain difference.
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公开(公告)号：US20170079047A1
公开(公告)日：2017-03-16
申请号：US15120218
申请日：2014-12-15
Applicant: LG ELECTRONICS INC.
Inventor： Kilbom LEE , Jiwon KANG , Kitae KIM
CPC classification number: H04W72/082 , H04B7/0413 , H04B7/0452 , H04L5/0048 , H04L25/03968
Abstract: Disclosed herein are a received signal processing method including selecting a reference resource element (RE) from an RE group including a plurality of REs, generating a common filter to be shared among the plurality of REs of the RE group based on channel information of the reference RE, detecting primary signals, from which channel influence is removed, of the plurality of REs by applying the common filter to received signals of the plurality of REs, and generating secondary signals by compensating for primary signals of REs except for the reference RE among the plurality of REs using channel information of the REs, and a multiple input multiple output (MIMO) receiver.
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RE组中选择参考资源元素（RE），基于参考的信道信息生成要在RE组的多个RE中共享的公共滤波器 RE，通过对多个RE的接收信号应用公共滤波器来检测多个RE的信道影响的主信号，并且通过补偿除RE之外的参考RE的主信号，生成辅信号 使用RE的信道信息的多个RE，以及多输入多输出（MIMO）接收机。
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公开(公告)号：US20170048029A1
公开(公告)日：2017-02-16
申请号：US15307282
申请日：2015-04-30
Applicant: LG ELECTRONICS INC.
Inventor： Kilbom LEE , Jiwon KANG , Kitae KIM , Heejin KIM
CPC classification number: H04L5/0005 , H04B7/04 , H04B7/0413 , H04B7/06 , H04L5/00 , H04L27/26
Abstract: Disclosed are a communication method and a MIMO transmitter for measuring the inter-channel relationship of a plurality of resource elements (REs) on the basis of channel information of the plurality of REs, and dividing the plurality of REs in consideration of the measured inter-channel relationship, thereby forming one or more RE groups, and transmitting information on the RE groups to a MIMO receiver.
Abstract translation: 公开了一种通信方法和MIMO发送器，用于基于多个RE的信道信息来测量多个资源元素（RE）的信道间关系，并且考虑到所测量的多个RE之间的多个RE， 从而形成一个或多个RE组，并且将关于RE组的信息发送到MIMO接收机。
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