公开(公告)号：US20180070385A1

公开(公告)日：2018-03-08

申请号：US15812582

申请日：2017-11-14

Applicant: LG ELECTRONICS INC.

Inventor： Suckchel YANG ,  Joonkui AHN ,  Yunjung YI ,  Hyangsun YOU ,  Bonghoe KIM

IPC: H04W74/08 ,  H04W72/04 ,  H04W4/00 ,  H04W72/12

CPC classification number: H04W74/0833 ,  H04W4/70 ,  H04W72/0413 ,  H04W72/0446 ,  H04W72/12 ,  H04W74/08 ,  H04W88/02

Abstract: A method is provided for performing a random access procedure by a user equipment (UE) in a wireless communication system supporting coverage enhancement. The UE repeatedly transmits a physical random access channel (PRACH) signal, determines a random access radio network temporary identifier (RA-RNTI) corresponding to the PRACH signal using system frame number (SFN) information, wherein time index information and frequency index information are not used for determining the RA-RNTI, and monitors downlink control information masked by the determined RA-RNTI. The time index information indicates a subframe starting the repeated transmission of the PRACH signal, the frequency index information indicates a frequency index of the PRACH signal transmitted in the starting subframe, and the SFN information indicates a radio frame starting the repeated transmission of the PRACH signal.

公开(公告)号：US20170374640A1

公开(公告)日：2017-12-28

申请号：US15535237

申请日：2015-12-11

Applicant: LG ELECTRONICS INC.

Inventor： Bonghoe KIM ,  Suckchel YANG

IPC: H04W64/00 ,  H04J11/00

CPC classification number: H04W64/003 ,  G01S1/042 ,  G01S5/00 ,  G01S5/0226 ,  G01S5/10 ,  H04J11/0073 ,  H04J11/0076 ,  H04J2011/0096 ,  H04L1/00 ,  H04L1/0052 ,  H04L1/08 ,  H04L5/00 ,  H04W64/00

Abstract: The present invention provides methods for configuring and transmitting a positioning reference signal (PRS) used for estimating the location of a machine type communication (MTC) terminal in a wireless access system supporting machine type communication (MTC), and an apparatus for supporting the same. According to one embodiment of the present invention, a method for transmitting, by a base station, a positioning reference signal (PRS) used for estimating the location of a machine type communication (MTC) terminal in a wireless access system supporting MTC, comprises the steps of: repeating transmission of a physical downlink shared channel (PDSCH) including the same downlink data N times; and transmitting the PRS in a PRS subframe (SF), wherein when the PRS SF consists of a normal subframe (SF) and a multimedia broadcast multicast service single frequency network (MBSFN) SF, a normal cyclic prefix (CP) is used as a CP to be applied to the PRS, and when the PRS SF consists of only the MBSFN SF, a CP applied to the PRS may be an extended CP.

公开(公告)号：US20170318577A1

公开(公告)日：2017-11-02

申请号：US15652040

申请日：2017-07-17

Applicant: LG ELECTRONICS INC.

Inventor： Suckchel YANG ,  Joonkui AHN ,  Bonghoe KIM

IPC: H04W72/04 ,  H04W24/04 ,  H04L5/00 ,  H04L1/00 ,  H04L1/18 ,  H04L1/16

CPC classification number: H04W72/0413 ,  H04L1/0076 ,  H04L1/1671 ,  H04L1/1812 ,  H04L5/001 ,  H04L5/0032 ,  H04L5/0055 ,  H04W24/04 ,  H04W52/365 ,  H04W72/042 ,  H04W88/02

Abstract: The present invention relates to a wireless communication system. In detail, the invention relates to a method for a terminal to transmit a UCI in a carrier aggregation-based wireless communication system, and to an apparatus therefor, wherein the method involves the steps of: forming a first cell group having a PCell; forming a second cell group having one or more SCells; receiving one or more data in the second cell group; and transmitting HARQ-ACK information on the one or more data through a PUCCH, wherein, when the first and second cell groups are managed by an identical base station, the HARQ-ACK information is transmitted in the PCell, and, when the first and second cell groups are managed by different base stations, the HARQ-ACK information is transmitted in the second cell group.

公开(公告)号：US20170317808A1

公开(公告)日：2017-11-02

申请号：US15520410

申请日：2015-10-22

Applicant: LG ELECTRONICS INC.

Inventor： Hyangsun YOU ,  Yunjung YI ,  Bonghoe KIM ,  Joonkui AHN ,  Hanjun PARK

IPC: H04L5/10 ,  H04W72/04 ,  H04L5/00

CPC classification number: H04L5/10 ,  H04L5/0007 ,  H04L5/0051 ,  H04L5/0055 ,  H04L5/0094 ,  H04W72/0446 ,  H04W72/0453

Abstract: A disclosure of the present specification provides a method for transmitting an uplink channel and a demodulation reference signal (DMRS) by a machine type communication (MTC) device. The method may comprise the steps of: determining a frequency resource area for transmitting an uplink channel so as to have a size equal to or smaller than the size of a physical resource block (PRB) including 12 subcarriers; generating a DMRS sequence for some sub-carriers among the 12 subcarriers when the frequency resource area for transmitting the uplink channel is determined to have a size smaller than the size of the PRB including the 12 subcarriers; and transmitting the uplink channel and the DMRS on the some subcarriers in the PRB.

公开(公告)号：US20170310417A1

公开(公告)日：2017-10-26

申请号：US15520646

申请日：2015-11-03

Applicant: LG ELECTRONICS INC.

Inventor： Manyoung JUNG ,  Bonghoe KIM ,  Hanbyul SEO

IPC: H04J99/00 ,  H04L1/18 ,  H04W72/04

CPC classification number: H04J15/00 ,  H04J11/004 ,  H04L1/18 ,  H04L1/1812 ,  H04L1/1861 ,  H04W72/042

Abstract: A non-orthogonal multiple access (NOMA) scheme data receiving method is provided. The method can comprise the steps of: receiving, by a user equipment (UE), downlink control information (DCI) for a NOMA scheme; receiving downlink data on the basis of the DCI; decoding interference data included in the received downlink data; cancelling decoded interference data in the received downlink data if the decoding is successful; and decoding the own downlink data remaining after the interference data has been cancelled.

公开(公告)号：US20170273027A1

公开(公告)日：2017-09-21

申请号：US15101834

申请日：2014-12-05

Applicant: LG ELECTRONICS INC.

Inventor： Bonghoe KIM ,  Dongyoun SEO ,  Suckchel YANG ,  Yunjung YI

IPC: H04W52/14 ,  H04W52/28 ,  H04W52/32 ,  H04W72/04

CPC classification number: H04W52/146 ,  H04W52/08 ,  H04W52/16 ,  H04W52/286 ,  H04W52/325 ,  H04W52/48 ,  H04W72/042

Abstract: The present invention relates to a wireless access system supporting machine-type communication (MTC), and more specifically, to methods for controlling uplink transmission power by an MTC terminal and apparatuses supporting same. A method for controlling uplink transmission power by an MTC terminal in a wireless access system supporting machine-type communication (MTC), according to one embodiment of the present invention, comprises the steps of: repeatedly receiving, a specific number of times, a first downlink control channel including a first transmission power command (TPC); transmitting, a specific number of times, a first uplink channel according to the transmission power indicated by the first TPC; and receiving a second downlink control channel including a second TPC which commands adjustment of transmission power while transmitting, the specific number of times, the first uplink channel, wherein, while the first uplink channel is being transmitted repeatedly, the first uplink channel can be transmitted according to the transmission power indicated by the first TPC, without reflecting the second TPC.

公开(公告)号：US20170223648A1

公开(公告)日：2017-08-03

申请号：US15424738

申请日：2017-02-03

Applicant: LG ELECTRONICS INC.

Inventor： Seokmin SHIN ,  Hyunsoo KO ,  Bonghoe KIM ,  Byounghoon KIM

IPC: H04W56/00 ,  H04L7/04 ,  H04L7/00 ,  H04B7/212 ,  H04B1/7073

CPC classification number: H04W56/005 ,  H04B7/2125 ,  H04J11/0073 ,  H04W56/001 ,  H04W56/0035 ,  H04W56/0055

Abstract: In the present invention, a method for synchronizing frequency and time in a wireless communication system and an apparatus for supporting the same are disclosed. Particularly, a method for synchronizing frequency and time performed by a terminal in a wireless communication system may include receiving a specific signal including a PSS, compensating the specific signal with at least one time offset candidate, generating at least one first differentiation value, generating at least one second differentiation value, calculating a cross correlation value between the at least one first differentiation value and the at least one second differentiation value, and estimating a time offset and a frequency offset of the PSS based on a time offset candidate that corresponds to a greatest cross correlation value among at least one cross correlation value calculated for at least one time offset candidate.

公开(公告)号：US20170208590A1

公开(公告)日：2017-07-20

申请号：US15327624

申请日：2016-05-09

Applicant: LG ELECTRONICS INC.

Inventor： Bonghoe KIM ,  Suckchel YANG ,  Yunjung YI

IPC: H04W72/04 ,  H04W72/10 ,  H04W4/00

CPC classification number: H04W72/0453 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/0064 ,  H04L5/0087 ,  H04L5/1469 ,  H04W4/70 ,  H04W72/0446 ,  H04W72/10

Abstract: According to an embodiment of the present invention, an MTC UE performs frequency retuning in order to perform uplink transmission through different subbands in consecutive first and second subframes, wherein positions of symbols, used for frequency retuning within the range of last n symbols of the first subframe to first n symbols of the second subframe, are determined according to priority between uplink signals to be transmitted.

公开(公告)号：US20170201986A1

公开(公告)日：2017-07-13

申请号：US15321044

申请日：2015-06-22

Applicant: LG ELECTRONICS INC.

Inventor： Hyukjin CHAE ,  Seungmin LEE ,  Hyunho LEE ,  Bonghoe KIM

IPC: H04W72/04 ,  H04B7/0456 ,  H04L5/14

Abstract: An embodiment of the present invention relates to a method for transmitting and receiving a signal by an inband full duplex (IBFD) base station in a wireless communication system, comprising the steps of: receiving respective uplink signals that repeat K times in K time intervals; and transmitting K-N downlink signals in K-N time intervals while the uplink signals are received in the K time intervals, wherein the N time intervals in the K time intervals are used for handling interference received by one or more terminals receiving the downlink signals from one or more terminals transmitting the uplink signals.

公开(公告)号：US20160337073A1

公开(公告)日：2016-11-17

申请号：US15218557

申请日：2016-07-25

Applicant: LG ELECTRONICS INC.

Inventor： Bonghoe KIM ,  Dongyoun SEO ,  Yunjung YI ,  Joonkui AHN

IPC: H04L1/00 ,  H04W72/04 ,  H04L27/34

CPC classification number: H04L1/0005 ,  H04L1/0027 ,  H04L5/001 ,  H04L5/0057 ,  H04L5/0098 ,  H04L25/03898 ,  H04L27/0008 ,  H04L27/18 ,  H04L27/34 ,  H04W72/0413

Abstract: A method and an evolved Node B (eNB) for receiving Channel Status Information (CSI) in a wireless access system are discussed. The method according to an embodiment includes transmitting a Physical Downlink Shared Channel (PDSCH); and receiving CSI including a Channel Quality Indication (CQI) index associated with the PDSCH. The CQI index is selected from one of a first CQI table for supporting up to a 64 Quadrature Amplitude Modulation (QAM) scheme and a second CQI table for supporting up to a 256 QAM scheme. CQI indices 12 to 15 of the first CQI table are used for the 64 QAM scheme and CQI indices 12 to 15 of the second CQI table are used for the 256 QAM scheme. A size of each of the first and the second CQI tables is the same.

Abstract translation: 讨论了一种用于在无线接入系统中接收信道状态信息（CSI）的方法和演进节点B（eNB）。 根据实施例的方法包括发送物理下行链路共享信道（PDSCH）; 以及接收包括与PDSCH相关联的信道质量指示（CQI）索引的CSI。 从用于支持最多64个正交幅度调制（QAM）方案的第一CQI表格和用于支持高达256QAM方案的第二CQI表中的一个中选择CQI索引。 第一CQI表的CQI索引12至15用于64QAM方案，并且第二CQI表的CQI索引12至15用于256QAM方案。 第一和第二CQI表中的每一个的大小相同。