公开(公告)号：US10524287B2

公开(公告)日：2019-12-31

申请号：US15542333

申请日：2016-01-07

Applicant: LG ELECTRONICS INC.

Inventor： Hyeyoung Choi ,  Kiseon Ryu ,  Jeongki Kim ,  Suhwook Kim

IPC: H04W74/04 ,  H04W72/12 ,  H04W84/12 ,  H04W48/12 ,  H04W48/16

Abstract: A method for transmitting and receiving a frame by an access point (AP) in a wireless communication system, according to an embodiment of the present invention, comprises the steps of: determining two or more STAs for performing multi-user (MU) transmission; determining a delivery traffic indication map (DTIM) for transmitting a parameter related to a trigger frame with respect to each of the two or more STAs; transmitting the parameter related to the trigger frame by means of the DTIM; and receiving from the two or more STAs an MU frame in time-frequency resources which are indicated in the parameter related to the trigger frame.

公开(公告)号：US10278208B2

公开(公告)日：2019-04-30

申请号：US15540992

申请日：2015-12-30

Applicant: LG ELECTRONICS INC.

Inventor： Hyeyoung Choi ,  Kiseon Ryu ,  Jeongki Kim ,  Hangyu Cho ,  Suhwook Kim

IPC: H04W74/00 ,  H04W74/08 ,  H04W84/12

Abstract: One embodiment of the present invention relates to a method by which a station (STA) performs uplink transmission in a wireless communication system, the method for performing uplink transmission comprising the steps of: receiving a trigger frame from an AP; and performing uplink transmission as a response to the trigger frame, wherein, when a network allocation vector (NAV) of the STA receiving the trigger frame is idle and clear channel assessment (CCA) result is idle, the uplink transmission is performed.

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：US10178691B2

公开(公告)日：2019-01-08

申请号：US15326994

申请日：2015-03-10

Applicant: LG ELECTRONICS INC.

Inventor： Kitae Kim ,  Eunjong Lee ,  Giwon Park ,  Jaehoon Chung ,  Jiwon Kang ,  Hyeyoung Choi

IPC: H04W72/12 ,  H04W28/02 ,  H04W72/04

Abstract: Disclosed herein are a method and apparatus for requesting scheduling in a wireless communication system. More specifically, a method of requesting scheduling for transmitting uplink data in a wireless communication system may include transmitting, by user equipment (UE), a Scheduling Request (SR) of an SR type selected from multiple SR types to an eNB, receiving, by the UE, an uplink grant determined according to the selected SR type from the eNB, and transmitting, by the UE, uplink data to the eNB through a physical uplink shared channel (PUSCH) resource allocated by the uplink grant.

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.