公开(公告)号：US10523353B2

公开(公告)日：2019-12-31

申请号：US15765236

申请日：2016-10-04

Applicant: LG ELECTRONICS INC.

Inventor： Bonghoe Kim ,  Kijun Kim ,  Hyunsoo Ko ,  Byounghoon Kim ,  Yunjung Yi ,  Seokmin Shin

IPC: H04J11/00 ,  H04L5/00 ,  H04L27/26 ,  H04J13/00

Abstract: The present invention provides a method and devices for transmitting and receiving a synchronization signal and a method for generating a synchronization signal in a wireless access system supporting NB-IoT. A method for transmitting a narrowband secondary synchronization signal (N-SSS) by a base station in a wireless access system supporting NB-IoT, according to an embodiment of the present invention, can comprise the steps of: generating a first sequence having a size M so as to generate an N-SSS; generating a second sequence having a size M so as to generate an N-SSS; generating an N-SSS by means of the first sequence and second sequence; and transmitting the N-SSS by means of n OFDM symbols. The size of a bandwidth used in the wireless access system supporting NB-IoT is the size of one physical resource block (PRB), and one PRB can comprise twelve subcarriers in a frequency domain.

公开(公告)号：US20190394000A1

公开(公告)日：2019-12-26

申请号：US16485209

申请日：2018-03-16

Applicant: LG Electronics Inc.

Inventor： Bonghoe Kim ,  llmu Byun ,  Joonkui Ahn ,  Sukhyon Yoon ,  Yunjung Yi

IPC: H04L5/00

Abstract: A method and device for transmitting a transport block in a wireless communication system is provided. Particularly, a terminal receives, from a base station, information on the number of subcarriers in a partial band included in an allocated carrier. The terminal distributes a soft buffer possessed by the terminal in proportion to the number of subcarriers in the partial band. The terminal determines a transport block size for each partial band according to the size of the distributed soft buffer. The terminal transmits, to the base station, the transport block within the transport block size.

公开(公告)号：US10470221B2

公开(公告)日：2019-11-05

申请号：US15828762

申请日：2017-12-01

Applicant: LG ELECTRONICS INC.

Inventor： Suckchel Yang ,  Joonkui Ahn ,  Yunjung Yi ,  Hyangsun You ,  Bonghoe Kim

IPC: H04W74/08 ,  H04W72/04 ,  H04W72/12 ,  H04W4/70 ,  H04W88/02

Abstract: A method for performing a random access procedure by a user equipment (UE) in a wireless communication system supporting coverage enhancement, the method including transmitting, by the UE, a random access preamble and repeatedly receiving, by the UE, a physical downlink control channel (PDCCH) scheduling a random access response (RAR) in response to the random access preamble, wherein, starting subframe information for repeatedly receiving the PDCCH scheduling the RAR is signaled through a system information block (SIB).

公开(公告)号：US10454521B2

公开(公告)日：2019-10-22

申请号：US15739518

申请日：2016-03-22

Applicant: LG ELECTRONICS INC.

Inventor： Hyunsoo Ko ,  Bonghoe Kim ,  Yunjung Yi ,  Sangrim Lee

IPC: H04B1/713 ,  H04L5/00 ,  H04L29/08 ,  H04L27/26 ,  H04W72/04 ,  H04W72/00 ,  H04J11/00 ,  H04W4/70

Abstract: A method and apparatus for randomization of interference in a cellular Internet of things (IoT) system is disclosed. The method for randomization of interference in the cellular IoT system may comprise the steps of: allocating a radio resource for a physical broadcast channel (PBCH) by a base station; and transmitting downlink data to a plurality of terminals through the PBCH by the base station on the basis of a broadcast, wherein the PBCH may be transmitted on N (herein, N is natural number) slots, the radio resource may be determined on the basis of frequency hopping, and the frequency hopping may be performed in a plurality of frequency areas included in the entire whole frequency bandwidth.

公开(公告)号：US10448373B2

公开(公告)日：2019-10-15

申请号：US15868163

申请日：2018-01-11

Applicant: LG ELECTRONICS INC.

Inventor： Suckchel Yang ,  Joonkui Ahn ,  Yunjung Yi ,  Hyangsun You ,  Bonghoe Kim

IPC: H04W72/04 ,  H04L5/00 ,  H04L1/18 ,  H04W72/14 ,  H04W74/08 ,  H04W4/70 ,  H04W4/021

Abstract: A method for receiving system information by a user equipment (UE) in a wireless communication system supporting coverage enhancement, the method includes receiving, by the UE, a first system information block (SIB) from a base station, the first SIB including scheduling information indicating resource block information and transport block size information for a second SIB; and repeatedly receiving, by the UE, the second SIB from the base station based on the indicated resource block information and transport block size information.

公开(公告)号：US10389496B2

公开(公告)日：2019-08-20

申请号：US15579421

申请日：2016-06-13

Applicant: LG ELECTRONICS INC.

Inventor： Daesung Hwang ,  Yunjung Yi ,  Bonghoe Kim

IPC: H04L5/00 ,  H04W72/04 ,  H04W28/26

Abstract: The disclosure of the present specification provides a method in which a narrowband-Internet of things (NB-IoT) device transmits an uplink channel. The method comprises: determining an uplink subcarrier spacing for transmitting an uplink channel; determining the length of a subframe on the basis of the subcarrier spacing; and transmitting the uplink channel in a subframe having the determined length. The last part of the subframe may be excluded from the transmission of the uplink channel.

公开(公告)号：US20190239109A1

公开(公告)日：2019-08-01

申请号：US16381460

申请日：2019-04-11

Applicant: LG Electronics Inc.

Inventor： Bonghoe Kim ,  Byounghoon Kim ,  Yunjung Yi ,  Joonkui Ahn

IPC: H04W24/10 ,  H04L5/00 ,  H04W56/00

CPC classification number: H04W24/10 ,  H04L5/0048 ,  H04L5/0053 ,  H04W56/001

Abstract: The present invention relates to methods for making radio resource measurements in synchronized cells when quasi co-location is applied, and to apparatuses supporting same. A method for a terminal for making radio resource measurements (RRM) in a wireless access system according to one embodiment of the present invention may comprise the steps of: receiving an upper level signal comprising a reference signal for channel state information (CSI-RS) of a first cell, and quasi co-location (QCL) information for a cell-specific reference signal (CRS) and/or CSI-RS of a second cell; receiving the CRS and/or CSI-RS of the second cell on the basis of the QCL information; and measuring a first RRM for the first cell by means of the CRS and/or the CSI-RS of the second cell.

公开(公告)号：US20190229751A1

公开(公告)日：2019-07-25

申请号：US16337193

申请日：2017-05-26

Applicant: LG Electronics Inc.

Inventor： Jinwoo Kim ,  Jongwoong Shin ,  Bonghoe Kim ,  Kwangseok Noh ,  Ilmu Byun

IPC: H03M13/11 ,  H04L1/00 ,  H03M13/00 ,  H04L1/16

Abstract: A quasi-cyclic low density parity check (QC LDPC) code rate matching method is disclosed. According to the rate matching method in the present disclosure, the minimum lifting value can be selected from among lifting values by which a codeword longer than a target code block can be generated. A coding gain through retransmission can be acquired by generating the codeword that is longer than the target code block. In addition, by selecting a lifting value of a proper magnitude, rate matching for information bit sequences of various lengths can be performed.

公开(公告)号：US10356765B2

公开(公告)日：2019-07-16

申请号：US15741583

申请日：2016-07-08

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae Kim ,  Kijun Kim ,  Jonghyun Park ,  Daesung Hwang ,  Bonghoe Kim

IPC: H04W72/04 ,  H04W28/06 ,  H04W88/02 ,  H04B7/0417

Abstract: Disclosed in the present application is a method for transmitting, by a terminal, uplink control information to a base station in a wireless communication system. In detail, the method includes the steps of: periodically transmitting, to a base station, first uplink control information including channel status information; and transmitting, to the base station, second unlink control information including response information to downlink data, wherein when the first uplink control information and the second uplink control information are transmitted at the same time, the channel status information is characterized in being included in the second uplink control information and the first uplink control information and the second uplink control information are characterized in being transmitted together with a first indicator for indicating whether the response information is included.

公开(公告)号：US10320546B2

公开(公告)日：2019-06-11

申请号：US15315334

申请日：2015-07-30

Applicant: LG ELECTRONICS INC.

Inventor： Kijun Kim ,  Jonghyun Park ,  Bonghoe Kim

IPC: H04L5/00 ,  H04B7/06 ,  H04B7/0456

Abstract: According to one embodiment of the present invention, a method for reporting a channel state of a downlink channel transmitted through two-dimensionally arranged Nt number of antenna ports is carried out by a terminal, wherein the method comprises the steps of: configuring each of the Nt number of antenna ports to be mapped to all antenna elements belonging to a specific antenna element group, and each antenna port of an antenna port group corresponding to a reference signal (RS), which is transmitted in the same OFDM symbol, to be mapped to different antenna element groups from each other, and receiving a channel state information (CSI)-RS configuration for reporting a channel state for the antenna port group; and calculating channel state information on a downlink channel through a CSI-RS received using the received CSI-RS configuration, and reporting, to a serving cell, the calculated channel state information, wherein the reported channel state information can contain a precoding matrix for selecting an antenna port group and a precoding matrix to be applied to the selected antenna port group.