公开(公告)号：US10367630B2

公开(公告)日：2019-07-30

申请号：US15577950

申请日：2015-11-09

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/14 ,  H04W72/04 ,  H04L5/00

Abstract: Provided are a method and device for performing communication using a plurality of subframes in a time division duplex (TDD) based wireless communication system. Specifically, groups are set by grouping a first configuration and a second configuration which arrange at least one downlink symbol and at least one uplink symbol in a subframe unit. The first configuration and the second configuration are configured in a manner that the downlink symbol and the uplink symbol do not overlap with each other in a particular symbol interval. Information indicative of a group is transmitted to a terminal for at least one subframe from among the plurality of subframes. Information indicative of a configuration to be used in the terminal of the first configuration and the second configuration in a group with respect to at least one subframe is transmitted to the terminal.

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：US10194311B2

公开(公告)日：2019-01-29

申请号：US15021641

申请日：2014-07-10

Applicant: LG ELECTRONICS INC.

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

IPC: H04W8/18 ,  H04W60/04 ,  H04W36/00 ,  H04W76/30 ,  H04W88/08

Abstract: A method for performing tracking area (TA) update by a UE in a cloud radio access network (C-RAN) includes: receiving at least one of neighbor radio remote unit (RRU) information and neighbor baseband unit (BBU) information from a primary BBU; setting a TA based on the received information and characteristics of the UE; and transmitting information on the set TA to the primary BBU during a radio resource control (RRC) connection release procedure.

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：US10057840B2

公开(公告)日：2018-08-21

申请号：US14778295

申请日：2014-04-03

Applicant: LG Electronics Inc.

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

IPC: H04W48/16 ,  H04W76/27 ,  H04L12/24 ,  H04W72/08 ,  H04W76/04 ,  H04W88/02 ,  H04W88/08

CPC classification number: H04W48/16 ,  H04L41/06 ,  H04W72/085 ,  H04W76/27 ,  H04W88/02 ,  H04W88/08

Abstract: The present invention relates to a wireless communication system. Particularly, a method by which a terminal scans a base station in a plurality of communication systems, according to one embodiment of the present invention, can comprises the steps of: receiving, by the terminal connected to a first communication system, information on at least one second base station of a second communication system from a first base station of the first communication system; receiving, from the first base station, a scanning request message requesting to scan at least one second base station if a scanning start condition is satisfied, receiving; scanning at least one second base station on the basis of the scanning request message; and transmitting, to the first base station, a failure reporting message including information on the cause of a scanning failure if the result from the scanning step is failure.

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：US10045333B2

公开(公告)日：2018-08-07

申请号：US15035175

申请日：2014-11-07

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04W76/10 ,  H04W16/32 ,  H04W24/10 ,  H04W28/02 ,  H04W28/16 ,  H04W88/08

Abstract: Disclosed is a coverage setting method comprising detecting the generation of uplink data which is to be transmitted through uplink communication; transmitting an uplink data generation notification message for requesting an update of an uplink coverage to a BBU mapped to an RRU, if the uplink data is not capable of being transmitted by the RRU due to a state of the RRU being connected to a terminal, receiving, from the BBU, an RRC connection resetting message for indicating an addition of a connection with a new RRU for performing the uplink communication when it is determined that the uplink coverage of the terminal is to be updated by the BBU, and setting the connection with the new RRU to transmit the uplink data.

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.