公开(公告)号：US20190166632A1

公开(公告)日：2019-05-30

申请号：US16091810

申请日：2017-04-07

Applicant: LG Electronics Inc.

Inventor： Ilmu BYUN ,  Jiwon KANG ,  Heejeong CHO ,  Genebeck HAHN ,  Heejin Kim ,  Hyunjin SHIM ,  Kilbom LEE

IPC: H04W76/11 ,  H04W72/04 ,  H04L5/00 ,  H04L25/02

Abstract: Provided are a method and a device for transmitting data in a wireless communication system. More particularly, a terminal transmits a first transmission preamble and a second transmission preamble so as to estimate an uplink channel. If a common temporary identifier is assigned to the first and second transmission preambles, a common response message for the first and second transmission preambles is received. If temporary identifiers that are different from each other are respectively assigned to the first and second transmission preambles, respective individual response messages for the first and second transmission preambles are received. Data is transmitted by means of an estimated uplink channel. The first transmission preamble is transmitted in a plurality of resource regions, and the second transmission preamble is transmitted in one resource region.

公开(公告)号：US20190159228A1

公开(公告)日：2019-05-23

申请号：US16098079

申请日：2017-04-27

Applicant: LG ELECTRONICS INC.

Inventor： Kilbom LEE ,  Jaehoon CHUNG ,  Kyuseok KIM ,  Ilmu BYUN ,  Minki AHN

IPC: H04W72/12 ,  H04W72/04 ,  H04W16/28

Abstract: Disclosed is an information transmitting method and terminal for transmitting beam-related uplink information, wherein the terminal can determine whether a beam mismatch from a base station has occurred, and transmit beam-related information including the beam mismatch to the base station, so as to solve a beam mismatch.

公开(公告)号：US20190149299A1

公开(公告)日：2019-05-16

申请号：US16194209

申请日：2018-11-16

Applicant: LG ELECTRONICS INC.

Inventor： Kilbom LEE ,  Jiwon KANG ,  Haewook PARK ,  Jonghyun PARK ,  Kyuseok KIM

IPC: H04L5/00

Abstract: According to the present invention, a method of transmitting and receiving an uplink phase tracking reference signal between a user equipment and a base station in a wireless communication and an apparatus supporting the same are disclosed.According to an example applicable to the present invention, a user equipment can transmit an uplink PT-RS to a base station using the actual number of PT-RS ports which is determined based on the maximum uplink phase tracking reference signal (PT-RS) ports received from the base station and a precoding matrix set to the UE.

公开(公告)号：US20180351719A1

公开(公告)日：2018-12-06

申请号：US16065122

申请日：2017-11-09

Applicant: LG ELECTRONICS INC.

Inventor： Kilbom LEE ,  Hyunsoo KO ,  Jiwon KANG ,  Kyuseok KIM ,  Kijun KIM

IPC: H04L5/00 ,  H04W24/08 ,  H04W72/08

Abstract: According to an embodiment of the present specification, provided is a method for transmitting a signal that allows a user equipment to cancel phase noise by a base station in an mmWave communication system. In this case, the method may include: generating a PTRS for estimating phase noise of a downlink signal; transmitting PTRS power boosting level information for the PTRS to the user equipment via downlink signaling; and transmitting the PTRS via downlink signaling based on the PTRS power boosting level information. In this case, the PTRS power boosting level information may be determined based on at least one of MCS level and PRB size.

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：US20180092053A1

公开(公告)日：2018-03-29

申请号：US15567007

申请日：2016-01-20

Applicant: LG ELECTRONICS INC.

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

IPC: H04W56/00

CPC classification number: H04W56/001 ,  H04B7/0617 ,  H04B7/0695 ,  H04L27/26 ,  H04L27/2613 ,  H04L27/2657 ,  H04L27/2663 ,  H04L27/2692 ,  H04W88/02

Abstract: Disclosed are a method and a terminal for receiving a synchronization signal configured to: obtain information on a plurality of base station types in which a plurality of base stations are classified according to predetermined parameters; receive a synchronization signal from a base station of a cell where the terminal is positioned; estimate the number of repetitions of the synchronization signal and a band to which a sequence number of the synchronization signal belongs: select, using the estimation results, the base station type of a base station from which the synchronization signal was transmitted, from among the plurality of base station types; and perform a beam scanning process by considering the selected base station type.

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：US20170346540A1

公开(公告)日：2017-11-30

申请号：US15532946

申请日：2015-06-24

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/06 ,  H04L5/00 ,  H04B7/0413

CPC classification number: H04B7/0626 ,  H04B7/04 ,  H04B7/0413 ,  H04B7/06 ,  H04B7/0619 ,  H04L5/0048 ,  H04L5/0057

Abstract: Disclosed in the present application is a method by which a terminal generates channel state information for multi-antenna-based beamforming in a wireless communication system. Specifically, the method comprises the steps of: receiving a first pilot signal and a second pilot signal from a base station; selecting a first rank on the basis of the first pilot signal and selecting a second rank on the basis of the second pilot signal; setting a rank search range for a three-dimensional channel on the basis of the first rank and the second rank; and selecting a rank for the three-dimensional channel within the rank search range and a precoder corresponding to the rank for the three-dimensional channel.