公开(公告)号：US10230506B2

公开(公告)日：2019-03-12

申请号：US15517511

申请日：2014-10-07

Applicant: LG ELECTRONICS INC.

Inventor： Kungmin Park ,  Heejeong Cho ,  Hyunsoo Ko ,  Hyeyoung Choi ,  Ilmu Byun

IPC: H04L5/00 ,  H04J11/00 ,  H04L27/26 ,  H04B7/024 ,  H04B7/0456 ,  H04W4/00

Abstract: A signal transmission method for reducing inter-cell interference according to the present invention may comprise the steps of: determining a rank on the basis of feedback information received from a terminal; generating a transmission sequence according to the rank; generating a repetitive transmission sequence by repeating the transmission sequence, and shifting a position of a symbol within the repetitive transmission sequence; and transmitting the transmission sequence and the repetitive transmission sequence. As a result, the present invention can implement an inter-cell interference randomization even in a closed-loop MINO.

公开(公告)号：US10193647B2

公开(公告)日：2019-01-29

申请号：US15519517

申请日：2014-10-27

Applicant: LG ELECTRONICS INC.

Inventor： Kungmin Park ,  Heejeong Cho ,  Hyunsoo Ko ,  Hyeyoung Choi ,  Ilmu Byun

IPC: H04L5/00 ,  H04J11/00 ,  H04B7/06 ,  H04L27/26

Abstract: The present invention relates to generating an interference pattern for controlling inter-cell interference, a method for signaling therefor, and an apparatus utilizing the method. The method for signaling an interference pattern according to the present invention may comprise the steps of: determining the length and cyclic shift offset for a first interference pattern to be allocated to a set reference resource from among interference pattern sets; generating a cell-specific sequence to which the cyclic shift offset of the first interference pattern has been applied; and allocating the first interference pattern and cell-specific sequence to a resource and transmitting same.

公开(公告)号：US10056926B2

公开(公告)日：2018-08-21

申请号：US15528151

申请日：2014-11-20

Applicant: LG ELECTRONICS INC.

Inventor： Ilmu Byun ,  Heejeong Cho ,  Hyunsoo Ko ,  Hyeyoung Choi ,  Kungmin Park

IPC: H04B1/00 ,  H04B15/00 ,  H04B1/10 ,  H04B17/345 ,  H04B7/0413

CPC classification number: H04B1/10 ,  H04B7/024 ,  H04B7/0413 ,  H04B7/0478 ,  H04B17/345 ,  H04J11/0056 ,  H04W52/42

Abstract: Provided are a method and a device for transmitting and receiving inter-cell information for cancelling inter-cell interference in a wireless communication system. The method for transmitting and receiving inter-cell information may comprise the steps of: taking a PMI set which is a set of PMIs of a signal generating interference to an area partitioned in a predetermined direction and transmitting same to the base station of an adjacent cell transmitting the signal generating interference; and receiving, from the base station of the adjacent cell, PMI information on at least one of the PMIs included in the PMI set.

公开(公告)号：US10050753B2

公开(公告)日：2018-08-14

申请号：US15505811

申请日：2014-09-17

Applicant: LG ELECTRONICS, INC.

Inventor： Kungmin Park ,  Heejeong Cho ,  Hyunsoo Ko ,  Hyeyoung Choi ,  Ilmu Byun

IPC: H04W72/08 ,  H04L5/00 ,  H04W72/12 ,  H04B17/309 ,  H04B17/345 ,  H04J1/16

Abstract: Disclosed is a method for mitigating inter-cell interference. A method for mitigating inter-cell interference can comprise the steps of: a terminal, which is being serviced by means of a fixed cell, receiving from the fixed cell a first signal that is generated on the basis of a first STBC; the terminal, in time resources overlapping the reception time of the first signal, receiving from a moving cell a second signal that is generated on the basis of a second STBC; and the terminal determining a transmission symbol component on the basis of the first signal and an interference component on the basis of the first signal and the second signal.

公开(公告)号：US10021629B2

公开(公告)日：2018-07-10

申请号：US14904360

申请日：2014-05-12

Applicant: LG ELECTRONICS INC.

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

IPC: H04W48/16 ,  H04W24/02 ,  H04W72/04 ,  H04W76/04 ,  H04W88/06 ,  H04W36/00 ,  H04W48/12 ,  H04W88/08 ,  H04W84/04 ,  H04W84/12 ,  H04W52/02

CPC classification number: H04W48/16 ,  H04W24/02 ,  H04W36/0066 ,  H04W48/12 ,  H04W52/0206 ,  H04W72/04 ,  H04W76/27 ,  H04W76/28 ,  H04W84/042 ,  H04W84/12 ,  H04W88/06 ,  H04W88/08 ,  Y02D70/00 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/21 ,  Y02D70/24 ,  Y02D70/25

Abstract: A method for scanning for a base station (BS) of a second radio access technology (RAT) by a user equipment (UE) connected to a first RAT in a multi-RAT environment includes receiving information about one or more BSs of the second RAT adjacent to the UE, from an interworking entity (IWE) of the first RAT which manages interworking between the first RAT and the second RAT, and transmitting an awake request message to a specific BS among the BSs of the second RAT in a listening interval of the specific BS to which the UE desires to access, if a status of the specific BS is an idle mode, wherein listening interval information is included in the received information about the BSs of the second RAT.

公开(公告)号：US10009075B2

公开(公告)日：2018-06-26

申请号：US14552918

申请日：2014-11-25

Applicant: LG Electronics Inc.

Inventor： Hyunsoo Ko ,  Heejeong Cho ,  Hyeyoung Choi ,  Ilmu Byun ,  Kungmin Park

IPC: H04B7/04 ,  H04W24/08 ,  H04B7/0417 ,  H04B7/0456 ,  H04L5/00

CPC classification number: H04B7/0456 ,  H04B7/0417 ,  H04B7/046 ,  H04B7/0486 ,  H04L5/0032 ,  H04L5/0048

Abstract: Here, operation for 3D beam forming is disclosed. UE, receiving reference signals from one or more base stations (eNBs), may report feedback information comprising precoding matrix information to the one or more eNBs. The precoding matrix information indicates a first type precoding matrix for a horizontal direction and a second type precoding matrix for a vertical direction. eNBs may transmit signals, which are precoded based on a third type precoding matrix for beam forming both on the horizontal direction and the vertical direction.

公开(公告)号：US09986493B2

公开(公告)日：2018-05-29

申请号：US14904360

申请日：2014-05-12

Applicant: LG ELECTRONICS INC.

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

IPC: H04W48/16 ,  H04W24/02 ,  H04W72/04 ,  H04W76/04 ,  H04W88/06 ,  H04W36/00 ,  H04W48/12 ,  H04W88/08 ,  H04W84/04 ,  H04W84/12 ,  H04W52/02

Abstract: A method for scanning for a base station (BS) of a second radio access technology (RAT) by a user equipment (UE) connected to a first RAT in a multi-RAT environment includes receiving information about one or more BSs of the second RAT adjacent to the UE, from an interworking entity (IWE) of the first RAT which manages interworking between the first RAT and the second RAT, and transmitting an awake request message to a specific BS among the BSs of the second RAT in a listening interval of the specific BS to which the UE desires to access, if a status of the specific BS is an idle mode, wherein listening interval information is included in the received information about the BSs of the second RAT.

公开(公告)号：US09974107B2

公开(公告)日：2018-05-15

申请号：US14916333

申请日：2014-09-01

Applicant: LG Electronics Inc.

Inventor： Heejeong Cho ,  Hyunsoo Ko ,  Hyeyoung Choi ,  Ilmu Byun ,  Kungmin Park

IPC: H04W4/00 ,  H04W76/02 ,  H04W76/06 ,  H04W88/06 ,  H04W8/06

CPC classification number: H04W76/15 ,  H04W8/06 ,  H04W76/30 ,  H04W88/06

Abstract: The present invention relates to radio communications between a terminal, a radio node and a core network in a radio communication system. A radio node, which can form a radio link to a terminal through a first radio interface by a first radio protocol and a second radio interface by a second radio protocol, may transmit, to the terminal, function structure type information about a mobility management-related function which can be performed through the first radio interface by the first radio protocol, form a radio link to the terminal through the second radio interface by the second radio protocol, establish a connection between the terminal and a core network by a non-access stratum (NAS) protocol if the terminal requests a connection between the terminal and the core network through the second radio interface, release the radio link, and perform the mobility management-related function through the second radio interface by communicating with the terminal.

公开(公告)号：US20180110062A1

公开(公告)日：2018-04-19

申请号：US15556360

申请日：2015-10-14

Applicant: LG ELECTRONICS INC.

Inventor： Ilmu Byun ,  Heejeong Cho ,  Hyunsoo Ko ,  Genebeck Hahn ,  Eunjong Lee

IPC: H04W72/12 ,  H04W72/14 ,  H04W72/02 ,  H04J1/04

Abstract: A method and device for dynamically allocating resources to a frequency band of a short transmission time interval (TTI) in a wireless communication system is provided. Specifically, a plurality of first downlink channels and a second downlink channel included in a subframe corresponding to one TTI are received, wherein the plurality of first downlink channels are received during sTTIs and the second downlink channel is received during the TTI. The plurality of first downlink channels are sequentially received. The plurality of first downlink channels are demodulated using control information included in a downlink control information (DCI) used for the second downlink channel and an RRC message. The control information and RRC message indicate frequency resources for the plurality of first downlink channels.

公开(公告)号：US09886812B2

公开(公告)日：2018-02-06

申请号：US14907792

申请日：2014-02-21

Applicant: LG ELECTRONICS INC.

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

IPC: G07F11/50 ,  G07F9/00 ,  H04B7/0417 ,  H04B7/06 ,  G07F11/38 ,  H04B7/0404

CPC classification number: H04L5/0048 ,  G07F9/00 ,  G07F11/38 ,  G07F11/50 ,  H04B7/024 ,  H04B7/0404 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0482 ,  H04B7/0691 ,  H04B7/0874 ,  H04B7/26

Abstract: In this disclosure, methods for antenna combining to meet the pilot requirement of the massive MIMO system, and apparatuses for the same are provided. In a user equipment (UE) perspective of view, the UE transmits first pilot signals via each of multiple antennas of the UE, and receives antenna combining information from a base station. Here, the antenna combining information combines the multiple antennas into one or more antenna groups based on the first pilot signals, and each of orthogonal sequences is allocated to each of the antenna groups. The UE transmits second pilot signals using the allocated orthogonal sequences for each of the antenna groups. The second pilot signals can be used for estimating downlink channel from the base station to the UE.