公开(公告)号：US20180034523A1

公开(公告)日：2018-02-01

申请号：US15553967

申请日：2015-07-23

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/06 ,  H04L5/00

CPC classification number: H04B7/0617 ,  H04B7/024 ,  H04B7/0469 ,  H04B7/0478 ,  H04B7/0486 ,  H04B7/0626 ,  H04B7/0639 ,  H04L5/0048

Abstract: The present application provides a method for feeding back, by a terminal, CSI information in a wireless communication system to which 3D beamforming is applied. Here, the method comprises the steps of: receiving a pilot signal from a base station; and feeding back first CSI information for a horizontal direction domain and second CSI information for a vertical direction domain on the basis of the 3D beamforming. Here, when a precoding indicator is a first value, first wideband (WB) CSI information and second wideband (WB) CSI information may be fed back, and when the precoding indicator is a second value, first subband (SB) CSI information and second subband (SB) CSI information may be fed back.

公开(公告)号：US20170324526A1

公开(公告)日：2017-11-09

申请号：US15517511

申请日：2014-10-07

Applicant: LG ELECTRONICS INC.

Inventor： Kungmin PARK ,  Heejeong CHO ,  Hyunsoo KO ,  Hyeyoung CHOI ,  Ilmu BYUN

IPC: H04L5/00 ,  H04L27/26

CPC classification number: H04L5/0032 ,  H04B7/024 ,  H04B7/0486 ,  H04J11/00 ,  H04J11/005 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0057 ,  H04L27/2646

Abstract: A signal transmission method for reducing inter-cell interference according to the present invention may comprise the steps of: determining a rank on the basis of feedback information received from a terminal; generating a transmission sequence according to the rank; generating a repetitive transmission sequence by repeating the transmission sequence, and shifting a position of a symbol within the repetitive transmission sequence; and transmitting the transmission sequence and the repetitive transmission sequence. As a result, the present invention can implement an inter-cell interference randomization even in a closed-loop MINO.

公开(公告)号：US20170310511A1

公开(公告)日：2017-10-26

申请号：US15506227

申请日：2014-11-17

Applicant: LG ELECTRONICS INC.

Inventor： Ilmu BYUN ,  Heejeong CHO ,  Hyunsoo KO ,  Hyeyoung CHOI ,  Kungmin PARK

IPC: H04L25/03 ,  H04B7/0452 ,  H04B7/06

CPC classification number: H04L25/03821 ,  H04B7/0452 ,  H04B7/0617 ,  H04B7/0621 ,  H04B17/309 ,  H04J11/005 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/203 ,  H04W52/243 ,  H04W72/082

Abstract: Provided are a method and a device for transmitting interference cancellation information for cancelling interference between cells in a wireless communication system. The method for transmitting interference cancellation information may comprise the steps of: on the basis of feedback information received from a terminal belonging to a cell controlled by a predetermined base station, estimating a symbol error rate or a packet error rate on a cell boundary region; by comparing the symbol error rate or the packet error rate with a predetermined critical value, determining a probability indicator indicating the probability of cancelling interference between cells at the cell boundary region; and transmitting information on the probability indicator to an adjacent cell.

公开(公告)号：US20170302415A1

公开(公告)日：2017-10-19

申请号：US15509839

申请日：2014-09-15

Applicant: LG ELECTRONICS INC.

Inventor： Kungmin PARK ,  Heejeong CHO ,  Hyunsoo KO ,  Hyeyoung CHOI ,  Ilmu BYUN

IPC: H04L5/00 ,  H04B7/04

CPC classification number: H04L5/0032 ,  H04B7/024 ,  H04B7/0456 ,  H04B7/0669 ,  H04J11/005 ,  H04L5/0023 ,  H04L5/0044 ,  H04L5/0073

Abstract: Provided is a method for mitigating inter-cell interference. To this end, a method can comprise: when a transmission symbol which will be transmitted to a first receiver is Sk (k is an integer) and a transmission symbol which will be transmitted to a second receiver is Zk (k is an integer), a step for, with respect to a first pattern, transmitting symbol Sk to the first receiver through a first transmission antenna and transmitting symbol Sk* to the first receiver through a second transmission antenna; and a second signal transmission step for, with respect to a second pattern that is different from the first pattern, transmitting symbol Zk to the second receiver through a third transmission antenna and transmitting symbol Zk* to the second receiver through a fourth transmission antenna.

公开(公告)号：US20170294978A1

公开(公告)日：2017-10-12

申请号：US15513104

申请日：2014-11-18

Applicant: LG ELECTRONICS INC.

Inventor： Ilmu BYUN ,  Heejeong CHO ,  Hyunsoo KO ,  Hyeyoung CHOI ,  Kungmin PARK

IPC: H04B17/345 ,  H04J11/00 ,  H04B7/0413

CPC classification number: H04B17/345 ,  H04B7/024 ,  H04B7/0413 ,  H04B17/00 ,  H04J11/005 ,  H04J2211/005 ,  H04W72/082

Abstract: Provided is a method and apparatus for transmitting interference signal information for inter-cell interference cancellation in a wireless communication system. The method for transmitting interference signal information may comprise the steps of: calculating the intensity of a signal on the basis of antenna gain and transmission power for a generated signal; generating probability information on the probability that interference is cancelled when the signal acts as interference; determining interference signal information indicating a feature of the signal when the signal acts as interference, on the basis of the antenna gain, the intensity of the signal, and the probability information; and transmitting the interference signal information to an adjacent cell.

公开(公告)号：US20170290021A1

公开(公告)日：2017-10-05

申请号：US15507234

申请日：2014-11-03

Applicant: LG ELECTRONICS INC.

Inventor： Hyeyoung CHOI ,  Heejeong CHO ,  Hyunsoo KO ,  Ilmu BYUN ,  Kungmin PARK

IPC: H04W72/06 ,  H04W28/02 ,  H04W72/12

CPC classification number: H04W28/0278 ,  H04L5/003 ,  H04L5/0032 ,  H04L5/0035 ,  H04L5/0053 ,  H04W28/08 ,  H04W72/0406 ,  H04W72/06 ,  H04W72/1226 ,  H04W72/1278 ,  H04W72/1284 ,  H04W88/10

Abstract: The present invention relates to a method for multi-RAT scheduling, and an apparatus therefor, in a heterogeneous wireless communication system. A cellular controller, which controls a terminal in a cellular network, receives a multi-RAT buffer status report from a terminal, determines a UL resource for each corresponding heterogeneous wireless communication network, transmits a multi-RAT BSR response message corresponding to the buffer status report to the terminal, and allocates the UL resource to the terminal by means of the heterogeneous wireless communication network.

公开(公告)号：US20170201894A1

公开(公告)日：2017-07-13

申请号：US15324248

申请日：2014-07-15

Applicant: LG ELECTRONICS INC.

Inventor： Ilmu BYUN ,  Hyunsoo KO ,  Kungmin PARK ,  Heejeong CHO ,  Hyeyoung CHOI

IPC: H04W16/32 ,  H04W72/10 ,  H04B1/713

CPC classification number: H04W16/32 ,  H04B1/713 ,  H04W72/048 ,  H04W72/10

Abstract: A resource allocation method according to the present invention may comprise the steps of: allocating a signal of an external resource to a predetermined resource according to a preconfigured resource allocation frame structure by a first base station governing a first cell; allocating a signal of an internal resource to the resource according to the resource allocation frame structure by a second base station governing a second cell adjacent to the first cell; and frequency-hopping the signal of the internal resource by the second base station when the signal of the internal resource overlaps the signal of the external resource. Accordingly, proposed is a resource allocation method capable of stably receiving a signal even when a terminal moving in a dense small cell structure is located at a cell edge, that is, an inter-cell boundary area.

公开(公告)号：US20170163318A1

公开(公告)日：2017-06-08

申请号：US15325069

申请日：2014-07-24

Applicant: LG ELECTRONICS INC.

Inventor： Ilmu BYUN ,  Hyunsoo KO ,  Kungmin PARK ,  Heejeong CHO ,  Hyeyoung CHOI

IPC: H04B7/0417 ,  G01S3/72 ,  H04B10/50 ,  H04B7/0452 ,  H04B7/06

CPC classification number: H04B7/0417 ,  G01S3/72 ,  H04B7/0452 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/0695 ,  H04B10/5055

Abstract: Provided are a method and an apparatus for generating and transmitting feedback signals for a plurality of reference signals having different directionality, in a wireless communication system. A terminal may receive the plurality of reference signals having different directionality, and transmit, to a transmission end, a feedback signal including a beam index which indicates one of the plurality of reference signals.

公开(公告)号：US20200337059A1

公开(公告)日：2020-10-22

申请号：US16868096

申请日：2020-05-06

Applicant: LG ELECTRONICS INC.

Inventor： Hyunsoo KO ,  Heejeong CHO ,  Hyeyoung CHOI ,  Ilmu BYUN ,  Kungmin PARK

IPC: H04W72/08 ,  H04B17/24 ,  H04B17/364 ,  H04L5/00 ,  H04W72/04

Abstract: The present invention relates to a method and an apparatus for generating a signal for low latency in a wireless communication system. The method, according to one embodiment of the present invention, for a communication device generating a situation-reporting signal for low latency and transmitting the signal to a base station in a wireless communication system comprises the steps of: generating the situation-reporting signal on the basis of a pre-set, specific situation recognized by the communication device; and transmitting the generated situation-reporting signal to the base station, wherein the situation-reporting signal may be generated so as to have a subcarrier spacing which is a pre-set number of times larger than a subcarrier spacing of a legacy communication system, the pre-set number being an integer.

公开(公告)号：US20180332592A1

公开(公告)日：2018-11-15

申请号：US16039059

申请日：2018-07-18

Applicant: LG ELECTRONICS INC.

Inventor： Hyunsoo KO ,  Heejeong CHO ,  Hyeyoung CHOI ,  Ilmu BYUN ,  Kungmin PARK

IPC: H04W72/08 ,  H04W72/04 ,  H04L5/00 ,  H04B17/364 ,  H04B17/24

Abstract: The present invention relates to a method and an apparatus for generating a signal for low latency in a wireless communication system. The method, according to one embodiment of the present invention, for a communication device generating a situation-reporting signal for low latency and transmitting the signal to a base station in a wireless communication system comprises the steps of: generating the situation-reporting signal on the basis of a pre-set, specific situation recognized by the communication device; and transmitting the generated situation-reporting signal to the base station, wherein the situation-reporting signal may be generated so as to have a subcarrier spacing which is a pre-set number of times larger than a subcarrier spacing of a legacy communication system, the pre-set number being an integer.