公开(公告)号：US20180212664A1

公开(公告)日：2018-07-26

申请号：US15746708

申请日：2016-03-17

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/06 ,  H04B7/0456

Abstract: Disclosed is a method for reporting channel quality information by a terminal to a base station in a wireless communication system to which hybrid beamforming is applied. Particularly, the method comprises the steps of: obtaining information associated with a first precoder for first beamforming from among hybrid beamforming; calculating information associated with a second precoder for second beamforming by receiving, from the base station, a reference signal to which the first beamforming is applied; calculating channel quality information by assuming that a pre-compensation precoder and the second precoder are applied; and reporting the channel quality information to the base station.

公开(公告)号：US20180132280A1

公开(公告)日：2018-05-10

申请号：US15574477

申请日：2016-05-19

Applicant: LG ELECTRONICS INC.

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

IPC: H04W74/08 ,  H04L27/26 ,  H04W56/00

CPC classification number: H04W74/085 ,  H04J13/0044 ,  H04L1/189 ,  H04L27/2613 ,  H04L27/2636 ,  H04L27/2692 ,  H04W56/0035 ,  H04W74/006 ,  H04W74/0866

Abstract: Disclosed are a method for performing a random access and a terminal, the method comprising: acquiring information on a sequence set and information on a phase pattern vector set to be used during a random access step; selecting, from among a plurality of phase pattern vectors included in the phase pattern vector set, any one phase pattern vector corresponding to the repeating transmission frequency of an RACH signal; transmitting, to a base station, the generated RACH signal for a time period up to the repeating transmission frequency by using the selected phase pattern vector and any one sequence selected from among a plurality of sequences included in the sequence set; and receiving, from the base station, an RACH response signal indicating an estimated sequence and an estimated phase pattern vector.

公开(公告)号：US20180131429A1

公开(公告)日：2018-05-10

申请号：US15569739

申请日：2015-10-13

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/06

CPC classification number: H04B7/0626 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639

Abstract: The present invention relates to a method for efficiently supporting vehicle communication in a next-generation radio communication system, and a device therefor. To this end, a user equipment (UE) provides, to a central unit (CU) of the UE, primary channel state information measured by each of a plurality of antenna units that are disposed in distributed locations of the UE; determines any one of a plurality of receiving modes by considering the combined gain of the primary channel state information in the CU; determines a secondary channel state information according to the determined receiving mode; and reports, through a transceiver of the UE to the network, information indicative of the determined receiving mode and the determined secondary channel state information.

公开(公告)号：US20180067203A1

公开(公告)日：2018-03-08

申请号：US15557629

申请日：2016-01-20

Applicant: LG ELECTRONICS INC.

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

IPC: G01S13/524 ,  H04B7/06 ,  G01S5/02

CPC classification number: G01S13/524 ,  G01S5/0205 ,  G01S5/12 ,  H04B7/0617 ,  H04B7/0619 ,  H04W56/001 ,  H04W56/0035

Abstract: Disclosed is a Doppler distribution measurement method comprising: receiving a plurality of receive signals that arrive via different RE sets in different paths; measuring CFO values of the plurality of receive signals; selecting the two receive signals in which the difference in value between the CFO values are the greatest, from among the plurality of receive signals; and determining a Doppler shift difference between the selected two receive signals a an effective Doppler distribution.

公开(公告)号：US20180007570A1

公开(公告)日：2018-01-04

申请号：US15546155

申请日：2015-01-27

Applicant: LG ELECTRONICS INC.

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

IPC: H04W24/02 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/06

CPC classification number: H04W24/02 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0632 ,  H04B17/24 ,  H04B17/345

Abstract: Provided is a method for generating inter-cell information for inter-cell interference removal in a wireless communication system. A method by which a terminal removes inter-cell interference comprises the steps of: receiving a signal from a serving cell and a neighboring cell adjacent to the serving cell; identifying the priority of the serving cell for feedback of channel information on the basis of an identifier of the cell and a resource block; identifying whether there is feedback of channel information on the signal received on the basis of the priority; and transmitting the channel information to a base station of the serving cell according to the identification of whether there is feedback.

公开(公告)号：US20170332250A1

公开(公告)日：2017-11-16

申请号：US15527675

申请日：2014-12-10

Applicant: LG ELECTRONICS INC.

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

IPC: H04W16/32 ,  H04L12/46 ,  H04W16/02

CPC classification number: H04W16/32 ,  H04B17/00 ,  H04L12/4641 ,  H04W16/02 ,  H04W24/10 ,  H04W52/143 ,  H04W52/245 ,  H04W52/343

Abstract: A method for generating a signal for reducing interference in a user-centralized virtual cell, according to an embodiment of the present invention, comprises the steps of: transmitting a reference signal to a terminal within a user-centralized virtual cell; receiving, from the terminal, a first channel measurement report message including channel information measured by the terminal on the basis of the reference signal; exchanging, with the first channel measurement report message, a second channel measurement report message that another base station within the user-centralized cell receives from another terminal other than the terminal, thereby sharing a channel measurement report message with the another base station; and generating a signal for reducing the interference on the basis of the first channel measurement report and the second channel measurement report message.

公开(公告)号：US20170331541A1

公开(公告)日：2017-11-16

申请号：US15529958

申请日：2015-06-23

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/06 ,  H04B7/04 ,  H04B7/0404 ,  H04W72/12

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 first reference signal corresponding to a row of a transmission antenna array, and a second reference signal corresponding to a column of the transmission antenna array; receiving, from the base station, a cross polarization characteristics measurement indicator; and reporting, to the base station, channel state information comprising a first precoder corresponding to the first reference signal and a second precoder corresponding to the second reference signal, wherein the channel state information comprises cross polarization characteristics information between antenna ports that have the same indexes, the antenna ports being among antenna ports having the first reference signal and the second reference signal transmitted.

公开(公告)号：US20170317800A1

公开(公告)日：2017-11-02

申请号：US15526050

申请日：2014-11-17

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/00 ,  H04W28/04

CPC classification number: H04L5/0032 ,  H04B17/345 ,  H04J11/005 ,  H04J2211/001 ,  H04L5/0048 ,  H04L5/005 ,  H04W28/04

Abstract: The present invention relates to a feedback information transmission method for supporting interference randomization in a wireless system and an apparatus using the same. The feedback information transmission method comprises the steps of: receiving, from a base station, information for an interference pattern including an inter-cell interference measurement reference signal, and a trigger condition for change in the interference pattern; measuring interference randomization gains on the basis of the inter-cell interference measurement reference signal; determining whether to request a change in the interference pattern on the basis of the interference randomization gains; requesting a change in the interference pattern to the base station, if it is determined to request a change in the interference pattern; and receiving, from the base station, the changed interference pattern and the changed trigger condition.

公开(公告)号：US20170310414A1

公开(公告)日：2017-10-26

申请号：US15511221

申请日：2014-09-22

Applicant: LG ELECTRONICS INC.

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

IPC: H04J11/00 ,  H04L5/00 ,  H04L27/26 ,  H04W88/08

CPC classification number: H04J11/005 ,  H04B7/024 ,  H04B7/046 ,  H04B7/0669 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/0073 ,  H04L27/2626 ,  H04W88/08

Abstract: The present invention provides a method for mitigating inter-cell interference. To this end, the present invention can comprise a second signal transmission step in which, when a transmission symbol to be transmitted to a first receiver is S and a transmission symbol to be transmitted to a second receiver is Z, a symbol S2k (k is an integer) is transmitted to the first receiver through a first transmission antenna according to a first pattern, a symbol S2k* is transmitted to the first receiver through a second transmission antenna, a symbol S2k+1 is transmitted to the first receiver through a third transmission antenna, a symbol S2k+1* is transmitted to the first receiver through a fourth transmission antenna, and symbols Z4k to Z4k+3 and symbols Z4k* to Z4k+3* are transmitted to the second receiver through fifth to eighth transmission antennas according to a second pattern different from the first pattern.

公开(公告)号：US20160261390A1

公开(公告)日：2016-09-08

申请号：US14967847

申请日：2015-12-14

Applicant: LG Electronics Inc.

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

IPC: H04L5/00 ,  H04B7/04

CPC classification number: H04L5/0048 ,  H04B7/0413 ,  H04B7/061 ,  H04B7/0669 ,  H04B7/0691 ,  H04B7/0697 ,  H04L5/0025 ,  H04L5/005 ,  H04L5/0094

Abstract: A method of transmitting signals by a transmitting side device having multiple antennas (hereinafter ‘N antennas’) is disclosed. In this method, the transmitting side device transmits reference signals (RSs) via M antenna among the N antennas, where M≦N, where one or more of M and a sequence of antenna numbers used for transmitting RSs informs a receiving side device of first information for data transmission, and where the RSs are used by the receiving side device for identifying second information for channel estimation. Transmitting side device transmits data to the receiving side device according to the first information.

Abstract translation: 公开了一种由具有多个天线的发送侧设备（以下称为“N个天线”）发送信号的方法。 在该方法中，发送侧装置在M个N个天线之间经由M个天线经由M个天线发送参考信号（RS），其中M个中的一个或多个以及用于发送RS的天线编号的序列将接收侧装置通知第一 用于数据传输的信息，以及由接收侧装置用于识别用于信道估计的第二信息的RS。 发送端设备根据第一信息向接收侧设备发送数据。