公开(公告)号：US20180139781A1

公开(公告)日：2018-05-17

申请号：US15574278

申请日：2016-05-23

Applicant: LG ELECTRONICS INC.

Inventor： Hanjun PARK ,  Joonkui AHN ,  Seonwook KIM

IPC: H04W74/08 ,  H04W72/14 ,  H04W72/12

CPC classification number: H04W74/0808 ,  H04W16/14 ,  H04W72/1268 ,  H04W72/14

Abstract: According to one embodiment, the present invention relates to channel sensing in an unlicensed band in a wireless communication system, and a data transmission method based on the same, wherein the method is performed by a transmission node for transmitting data by performing the channel sensing and comprises the steps of: receiving a data transmission instruction from a control node; performing a channel sensing-related operation in at least one of channel sensing-related operation execution sections set prior to each of a plurality of transmission opportunity units allowed at the transmission node, according to the data transmission instruction; and transmitting data according to the data transmission instruction in the transmission opportunity unit corresponding to a specific channel sensing-related operation execution section, if it is determined that a channel for transmitting the data is in the unoccupied state in the specific channel sensing-related operation execution section, wherein a transmission priority is assigned to each of the plurality of transmission opportunity units, and the length of the channel sensing-related opportunity execution section set prior to each of the plurality of transmission opportunity units can be adjusted according to the transmission priority assigned to each transmission opportunity unit.

公开(公告)号：US20180115967A1

公开(公告)日：2018-04-26

申请号：US15557425

申请日：2016-03-11

Applicant: LG ELECTRONICS INC.

Inventor： Joonkui AHN ,  Hanbyul SEO ,  Seungmin LEE ,  Yunjung YI ,  Seonwook KIM

IPC: H04W72/04 ,  H04W56/00 ,  H04W48/16

CPC classification number: H04W72/044 ,  H04B7/2656 ,  H04L1/00 ,  H04L5/001 ,  H04L5/0091 ,  H04L5/0098 ,  H04L27/0006 ,  H04L27/261 ,  H04W16/00 ,  H04W48/16 ,  H04W52/00 ,  H04W56/001 ,  H04W56/0015 ,  H04W72/042

Abstract: A method for receiving data in an unlicensed band and a device using the same are provided. The device receives discovery reference signal (DRS) configuration for a DRS period from a primary cell operating in a licensed band, and checks the reception of the DRS in a DRS subframe of a secondary cell operating in the unlicensed band according to the DRS period. When the DRS is received in the DRS subframe, the device determines the reception quality of a downlink data burst on the basis of the received DRS.

公开(公告)号：US20180062807A1

公开(公告)日：2018-03-01

申请号：US15558019

申请日：2016-03-31

Applicant: LG ELECTRONICS INC.

Inventor： Hanbyul SEO ,  Joonkui AHN ,  Seonwook KIM

IPC: H04L5/00 ,  H04W16/14

CPC classification number: H04L5/0048 ,  H04L1/00 ,  H04L1/0045 ,  H04L27/26 ,  H04W16/14

Abstract: Disclosed is a method for receiving a downlink signal by a terminal in a wireless communication system from a base station. More particularly, a method for receiving a downlink signal comprises receiving, from a base station, information about a second reference signal being quasi co-located (QCL) and a first reference signal for demodulating a downlink signal; determining the quasi-continuity of the second reference signal on the basis of the average density of the second reference signal, which exists in a window, for determining a quasi-continuity; and receiving the downlink signal from the base station on the basis of the existence of the quasi-continuity of the second reference signal.

公开(公告)号：US20170339720A1

公开(公告)日：2017-11-23

申请号：US15524819

申请日：2015-11-06

Applicant: LG ELECTRONICS INC.

Inventor： Seonwook KIM ,  Joonkui AHN ,  Kijun KIM ,  Hanbyul SEO ,  Hyukjin CHAE

IPC: H04W74/08 ,  H04W16/14

CPC classification number: H04W74/0808 ,  H04L5/001 ,  H04L27/0006 ,  H04W16/14 ,  H04W88/08

Abstract: The present invention relates to a wireless connection system that supports unlicensed bands. A method for performing backoff, methods for configuring a reservation signal transmission and a transmission opportunity section, and apparatus supporting the same. A method for performing a backoff operation in a wireless connection system supporting unlicensed bands, that is an embodiment of the present invention, may comprises the steps of: configuring a backoff counter N so as to perform a backoff operation; determining whether a current sub-frame is a back-off permitted section; performing a carrier sensing (CS) operation for checking if an unlicensed band is in an idle state if the sub-frame is within a backoff permitted section, for each CS unit; decreasing the backoff counter N by 1 after performing the CS operation; and transmitting a reservation signal or data using a U cell that is formed in an unlicensed band if the backoff counter value expires. In this regard, the CS operation is not performed in sub-frames except for the backoff permitted section and the backoff counter value can be maintained continuously.

公开(公告)号：US20170215172A1

公开(公告)日：2017-07-27

申请号：US15326013

申请日：2015-08-06

Applicant: LG ELECTRONICS INC.

Inventor： Suckchel YANG ,  Joonkui AHN ,  Seungmin LEE ,  Seonwook KIM

IPC: H04W72/04 ,  H04L5/00 ,  H04L27/26 ,  H04L1/18 ,  H04W16/14

CPC classification number: H04W52/367 ,  H04B7/0626 ,  H04B7/26 ,  H04L1/18 ,  H04L1/1864 ,  H04L5/001 ,  H04L5/0048 ,  H04L5/14 ,  H04L27/2601 ,  H04W16/14 ,  H04W52/146 ,  H04W52/281 ,  H04W52/34 ,  H04W52/365 ,  H04W52/38 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/0473

Abstract: The present invention provides a method and a device for transmitting/receiving an uplink signal on one cell (hereinafter, referred to as a specific cell) among a plurality of cells under a carrier aggregation situation in which the plurality of cells are aggregated. In one embodiment of the present invention, when the specific cell is a cell set in an unlicensed band, the specific cell is included in uplink grant downlink control information including a hybrid automatic repeat request (HARQ) process number field. Therefore, an asynchronous UL HARQ can be performed on the specific cell.

公开(公告)号：US20170215081A1

公开(公告)日：2017-07-27

申请号：US15324256

申请日：2015-07-13

Applicant: LG ELECTRONICS INC.

Inventor： Yunjung YI ,  Hyangsun YOU ,  Byounghoon KIM ,  Seonwook KIM ,  Joonkui AHN ,  Kijun KIM

IPC: H04W16/14 ,  H04W74/08

CPC classification number: H04L27/2656 ,  H04L27/2662 ,  H04W16/14 ,  H04W74/0816 ,  H04W84/12

Abstract: A method and apparatus for transmitting a Wi-Fi signal in a wireless communication system is provided. A device supporting long-term evolution in unlicensed spectrum (LTE-U) transmits a LTE signal, and transmits the Wi-Fi signal. The Wi-Fi signal may be transmitted by various methods, i.e. by being emulated in the LTE signal, by using a Wi-Fi processor which is embedded in a LTE processor, or by using a Wi-Fi processor which is individual to a LTE processor.

公开(公告)号：US20170171874A1

公开(公告)日：2017-06-15

申请号：US15327359

申请日：2015-07-23

Applicant: LG ELECTRONICS INC.

Inventor： Seonwook KIM ,  Hanbyul SEO ,  Inkwon SEO ,  Seungmin LEE ,  Youngtae KIM

IPC: H04W72/12 ,  H04L12/741 ,  H04L5/00 ,  H04W40/22 ,  H04W76/02 ,  H04W56/00

CPC classification number: H04W72/12 ,  H04B7/2606 ,  H04L5/0048 ,  H04L45/74 ,  H04W28/02 ,  H04W28/06 ,  H04W40/22 ,  H04W56/002 ,  H04W76/14 ,  H04W88/04

Abstract: The present invention relates to methods for efficiently relaying device to device (D2D) data utilizing a relay terminal (rUE) in a wireless access system supporting D2D communication, and apparatuses for supporting the methods. As one example of the present invention, a method for relaying D2D data by a relay terminal in a wireless access system supporting D2D communication may comprise the steps of: receiving a scheduling allocation (SA) signal for allocating a resource area where the D2D data are transmitted; receiving at least one D2D data; and relaying, from among the at least one D2D data, only the first D2D data received from a terminal out of coverage. The first D2D data among the at least one D2D data can be detected on the basis of a SA signal and a medium access control header relating to the at least one D2D data.

公开(公告)号：US20170164230A1

公开(公告)日：2017-06-08

申请号：US15325708

申请日：2015-06-25

Applicant: LG ELECTRONICS INC.

Inventor： Hyangsun YOU ,  Yunjung YI ,  Joonkui AHN ,  Seonwook KIM

IPC: H04W28/04 ,  H04L1/00 ,  H04B17/24 ,  H04B17/336 ,  H04W24/02 ,  H04B17/345

CPC classification number: H04W28/04 ,  H04B17/24 ,  H04B17/336 ,  H04B17/345 ,  H04L1/0026 ,  H04W16/14 ,  H04W24/02 ,  H04W24/10

Abstract: Provided in one embodiment of the present invention is a method for measuring interference with user equipment (UE) using a licensed band and an unlicensed band, through carrier aggregation (CA) according to long term evolution-advanced (LTE-A). The method comprises the steps of: receiving, from a base station, configuration on the position of a resource for measuring interference in the unlicensed band; measuring, from the position of the resource on the unlicensed band, interference from a wireless LAN (WLAN), excluding interference from the LTE-A; and reporting the measured interference to the base station.

公开(公告)号：US20170126300A1

公开(公告)日：2017-05-04

申请号：US15343980

申请日：2016-11-04

Applicant: LG ELECTRONICS INC.

Inventor： Hanjun PARK ,  Joonkui AHN ,  Seonwook KIM ,  Suckchel YANG ,  Hanbyul SEO

IPC: H04B7/06 ,  H04L5/00 ,  H04B17/345 ,  H04W4/10

CPC classification number: H04B7/0626 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04B17/345 ,  H04J11/0023 ,  H04L5/0048 ,  H04L27/2601 ,  H04W4/10 ,  H04W74/0833 ,  H04W88/02 ,  H04W88/08

Abstract: The present invention discloses a channel state information (CSI) measurement method through which a user equipment (UE) recognizes a resource pattern applied to a current CSI measurement resource through blind detection or dynamic signaling and performs CSI measurement when an evolved Node B (eNB) or the UE performs LBT (Listen-Before-Talk) based signal transmission and the eNB transmits CSI measurement resources (e.g., CRS/CSI-RS/CSI-IM) by applying one of a plurality of resource patterns thereto, and a UE performing the same.

公开(公告)号：US20250167847A1

公开(公告)日：2025-05-22

申请号：US18835245

申请日：2023-02-06

Applicant: LG ELECTRONICS INC.

Inventor： Hyangsun YOU ,  Kijun KIM ,  Hyunsoo KO ,  Seonwook KIM

IPC: H04B7/06 ,  H04L5/14 ,  H04W72/0453

Abstract: An operation method of a device in a wireless communication system, and a device are provided. The device may be a terminal, a chipset, or a base station. A terminal measures a reference signal in a frequency band configured by a base station, and reports a measurement result to the base station. The terminal may not be able to properly measure a reference signal in the entirety of the configured frequency band. In this case, the terminal operates to omit channel state information reporting for a frequency band in which a reference signal cannot be properly measured. For example, the terminal lowers the priority of the frequency band so that channel state information reporting for the frequency band is omitted.