公开(公告)号：US10045384B2

公开(公告)日：2018-08-07

申请号：US14912867

申请日：2014-07-01

Applicant: LG Electronics Inc.

Inventor： Eunjong Lee ,  Jaehoon Chung ,  Hyeyoung Choi ,  Heejeong Cho ,  Genebeck Hahn

IPC: H04W76/02 ,  H04W36/18 ,  H04W24/10 ,  H04W36/02 ,  H04W36/30 ,  H04W76/12 ,  H04W92/20 ,  H04W36/14 ,  H04W76/15

Abstract: A method for managing link failure, according to one embodiment of the present invention, comprises the steps of: receiving a link failure report (LFR) for notifying that a link between user equipment and an base station of a second RAT has been disassociated; requesting an entity of a first RAT, which manages interworking between the first RAT and the second RAT, to switch a flow of downlink data for the user equipment, which is to be transmitted to the base station of the second RAT, to a base station of the first RAT; establishing a direct tunnel between the base station of the first RAT and the base station of the second RAT by using an identifier of the base station of the second RAT, which is included in the LFR of the user equipment; and relaying the downlink data for the user equipment, which has been buffered in the base station of the second RAT up to before the switch of the flow after the disassociation of the link, from the base station of the second RAT to the user equipment.

公开(公告)号：US10028132B2

公开(公告)日：2018-07-17

申请号：US15101838

申请日：2014-05-30

Applicant: LG ELECTRONICS INC.

Inventor： Hyeyoung Choi ,  Jaehoon Chung ,  Eunjong Lee ,  Heejeong Cho ,  Genebeck Hahn

IPC: H04W76/11 ,  H04W8/24 ,  H04W76/02

Abstract: Provided is a method for receiving system information by a terminal in a cloud wireless communication system including one or more baseband units (BBUs) and remote radio units (RRUs), the one or more RRUs being connected to a particular BBU among the BBUs to provide a direct service to the terminal via one or more cells. The method is characterized in that the terminal receives, from the network, an identifier that can understand whether there are any changes in the BBU, the RRU, and the cell, and through the received identifier understands whether there are one or more changes among the BBU, the RRU, and the cell, and selectively receives, from the network, the only system information required for any one among the BBU change, the RRU change, and the cell change.

公开(公告)号：US10015725B2

公开(公告)日：2018-07-03

申请号：US15323690

申请日：2015-05-04

Applicant: LG ELECTRONICS INC.

Inventor： Eunjong Lee ,  Jaehoon Chung ,  Genebeck Hahn ,  Jinmin Kim ,  Kukheon Choi ,  Kwangseok Noh

IPC: H04W48/12 ,  H04W72/04 ,  H04W74/00

CPC classification number: H04W48/12 ,  H04W72/00 ,  H04W72/0413 ,  H04W74/002 ,  H04W74/08

Abstract: A method for transmitting uplink (UL) data requiring low latency in a wireless communication system is disclosed. The method performed by a user equipment (UE) includes receiving a first control message for informing a basic Contention-based PUSCH (Physical Uplink Shared Channel) Zone (CP zone) allocated to each subframe from an enhanced Node B (eNB), receiving a second control message for informing changes in a CP zone allocated to a specific subframe from the eNB, and transmitting UL data to the eNB through a CPRB (Contention PUSCH Resource Block) of the changed CP zone based on the received second control message. The first control message includes basic CP zone resource information indicating resource information of the basic CP zone, and the second control message includes changed CP zone resource information indicating resource information of the changed CP zone.

公开(公告)号：US10009809B2

公开(公告)日：2018-06-26

申请号：US15114349

申请日：2015-02-13

Applicant: LG Electronics Inc.

Inventor： Genebeck Hahn ,  Jaehoon Chung ,  Eunjong Lee ,  Jinmin Kim ,  Kukheon Choi ,  Kwangseok Noh

IPC: H04W74/08 ,  H04W36/00 ,  H04W36/14 ,  H04W76/04 ,  H04W36/08 ,  H04W84/00 ,  H04W84/04

CPC classification number: H04W36/0094 ,  H04W36/0016 ,  H04W36/0055 ,  H04W36/0077 ,  H04W36/08 ,  H04W36/14 ,  H04W36/16 ,  H04W74/0833 ,  H04W76/27 ,  H04W84/005 ,  H04W84/047

Abstract: A method for perform pre-processing for handover of a moving cell by a serving base station, the method comprises transmitting a handover pre-processing request message including information on a handover history of the moving cell, to at least one neighboring base station adjacent to the serving base station; receiving a pre-processing response message including at least one of a random access preamble allocated from the neighboring base station, radio resource control (RRC) configuration of the neighboring base station and system information of the neighboring base station, from the neighboring base station; and transmitting the pre-processing response message to the moving cell before handover of the moving cell is initiated.

公开(公告)号：US10004083B2

公开(公告)日：2018-06-19

申请号：US15032033

申请日：2014-10-06

Applicant: LG ELECTRONICS INC.

Inventor： Eunjong Lee ,  Heejeong Cho ,  Jaehoon Chung ,  Genebeck Hahn ,  Hyeyoung Choi

IPC: H04W72/12 ,  H04W16/14 ,  H04W88/06 ,  H04W92/20 ,  H04W74/08

CPC classification number: H04W72/1215 ,  H04W16/14 ,  H04W72/1247 ,  H04W74/08 ,  H04W74/085 ,  H04W88/06 ,  H04W92/20

Abstract: A method for controlling, by an entity of a first radio access technology (RAT), a base station of a second RAT in a multi-RAT environment, according to one embodiment of the present invention, comprises the steps of: determining an operation mode of the base station of the second RAT; and transmitting, to the base station of the second RAT, a message instructing a transition to the determined operation mode, wherein the message changes the opportunity for the second RAT to occupy a radio resource through a contention between the base station of the second RAT and a terminal connected to the first RAT.

公开(公告)号：US09974029B2

公开(公告)日：2018-05-15

申请号：US15596801

申请日：2017-05-16

Applicant: LG ELECTRONICS INC.

Inventor： Seunghee Han ,  Dongcheol Kim ,  Sungho Moon ,  Hangyu Cho ,  Jinmin Kim ,  Hyunwoo Lee ,  Jaehoon Chung

IPC: H04W52/14 ,  H04L1/00 ,  H04L5/14 ,  H04L1/16 ,  H04W52/24 ,  H04W52/32 ,  H04W52/48 ,  H04L1/18 ,  H04L5/00 ,  H04W72/04 ,  H04W72/12 ,  H04W52/36

CPC classification number: H04W52/146 ,  H04L1/0028 ,  H04L1/0031 ,  H04L1/0073 ,  H04L1/1671 ,  H04L1/1678 ,  H04L1/1692 ,  H04L1/1812 ,  H04L1/1887 ,  H04L5/0055 ,  H04L5/14 ,  H04W52/143 ,  H04W52/242 ,  H04W52/325 ,  H04W52/367 ,  H04W52/48 ,  H04W72/0413 ,  H04W72/1284

Abstract: A wireless communication system is disclosed. Disclosed herein are methods for transmitting a physical uplink control channel (PUCCH) signal in a wireless communication system, which includes setting transmit power for the PUCCH signal, and an apparatus thereof. If the PUCCH signal is transmitted on a subframe configured for a scheduling request (SR), the PUCCH signal includes one or more hybrid automatic repeat request acknowledgement (HARQ-ACK) bits and an SR bit. When determining the transmit power for the PUCCH, the SR bit is selectively considered depending on whether or not a transport block for an uplink shared channel (UL-SCH) is present in the subframe.

公开(公告)号：US09949125B2

公开(公告)日：2018-04-17

申请号：US15501791

申请日：2015-05-19

Applicant: LG ELECTRONICS INC.

Inventor： Genebeck Hahn ,  Jaehoon Chung ,  Eunjong Lee ,  Jinmin Kim ,  Kukheon Choi ,  Kwangseok Noh

IPC: H04M1/66 ,  H04W12/06 ,  H04W12/04 ,  H04W76/02

CPC classification number: H04W12/06 ,  H04W8/20 ,  H04W12/04 ,  H04W60/00 ,  H04W76/10

Abstract: A method for performing authentication by a base station with a terminal in a wireless communication system, according to an embodiment of the present invention, comprises the steps of: receiving from a terminal a radio resource control (RRC) connection setup request message; determining, on the basis of the RRC connection setup request message, whether or not the terminal requested fast authentication; if the terminal requested fast authentication, transmitting an international mobile subscriber identity (IMSI) of the terminal to a mobility management entity (MME) before the RRC connection setup of the terminal is complete; and authenticating the terminal on the basis of the control of the MME, wherein, in the step for authenticating the terminal, non-access stratum (NAS) security setup and access stratum (AS) security key setup of the terminal are simultaneously performed.

公开(公告)号：US09923696B2

公开(公告)日：2018-03-20

申请号：US15068001

申请日：2016-03-11

Applicant: LG ELECTRONICS INC.

Inventor： Hyunwoo Lee ,  Sungho Moon ,  Jaehoon Chung ,  Seunghee Han

IPC: H04L5/00 ,  H04B7/0413 ,  H04L1/06 ,  H04L1/18 ,  H04W72/04

CPC classification number: H04L5/0055 ,  H04B7/0413 ,  H04L1/06 ,  H04L1/1861 ,  H04W72/0413 ,  H04W72/042

Abstract: A method and user equipment (UE) for transmitting ACK/NACK information, and a method and base station (BS) for receiving ACK/NACK information are disclosed. If ACK/NACK repetition and spatial orthogonal-resource transmit diversity (SORTD) caused by 2 antenna ports are configured in the UE, the UE performs first ACK/NACK transmission using 2 PUCCH resources implicitly decided by an associated PDCCH. From the second transmission, the UE performs ACK/NACK transmission using 2 PUCCH resources explicitly assigned respectively for the two antenna ports.

公开(公告)号：US09923613B2

公开(公告)日：2018-03-20

申请号：US14891921

申请日：2014-02-21

Applicant: LG ELECTRONICS INC.

Inventor： Kilbom Lee ,  Jiwon Kang ,  Hyunsoo Ko ,  Jaehoon Chung

IPC: H04L5/00 ,  H04B7/0413 ,  H04L25/02

CPC classification number: H04B7/0413 ,  H04L5/0048 ,  H04L25/0202

Abstract: Reference signals (RSs) transmission scheme for massive MIMO system is disclosed. For this, ‘M’ resource blocks (RBs) are grouped into a resource block group (M>1). One or more antenna ports are grouped into one antenna group, wherein each of the antenna ports corresponds to each of the multiple antennas. The reference signals of the one antenna group are mapped into only one RB within one resource block group.

公开(公告)号：US09918338B2

公开(公告)日：2018-03-13

申请号：US14917494

申请日：2014-09-05

Applicant: LG ELECTRONICS INC.

Inventor： Kitae Kim ,  Kilbom Lee ,  Jaehoon Chung ,  Jinmin Kim

IPC: H04W4/00 ,  H04W74/00 ,  H04W56/00 ,  H04L27/26

CPC classification number: H04W74/008 ,  H04L27/2601 ,  H04L27/2678 ,  H04W56/0005 ,  H04W56/0055

Abstract: The present invention provides a method for detecting an uplink synchronization signal in a wireless access system supporting a high-frequency band, a method for designing a detection filter for the same and an apparatus for supporting the same. According to one embodiment of the present invention, a method for detecting a random access channel signal by a base station in a wireless access system supporting the high-frequency band comprises: allocating a cyclic shift value used in the base station; configuring a received signal vector for a signal transmitted via a random access channel; detecting at least one RACH signal from the received signal vector, using a frequency domain detecting filter; and identifying at least one terminal having transmitted at least one RACH signal, using a target terminal detecting filter, wherein the filter for detecting a target terminal may be set on the basis of the cyclic shift value.