公开(公告)号：US10111270B2

公开(公告)日：2018-10-23

申请号：US15165969

申请日：2016-05-26

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo Choi ,  Dongguk Lim ,  Hangyu Cho ,  Wookbong Lee

IPC: H04W76/14 ,  H04W4/00 ,  H04W72/04 ,  H04W76/02 ,  H04W4/70 ,  H04L5/00 ,  H04W84/12

Abstract: Provided is a method for receiving an uplink PPDU by using a plurality of RUs through a specific band in a wireless LAN system in which a plurality of bands is supported. Transmission of the uplink PPDU is disclosed by a trigger frame and the trigger frame indicates information on an identifier and a frequency resource of each station. In the trigger frame, an index field indicating the RU may be configured with the same size regardless of a bandwidth. To this end, a plurality of index groups is used instead of a method indicating a bitmap field or a start point/offset. A first index group of the index field may be used to indicate a first RU and a second index group of the index field may be used to indicate a second RU.

公开(公告)号：US10051687B2

公开(公告)日：2018-08-14

申请号：US15515123

申请日：2015-04-08

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk Lim ,  Wookbong Lee ,  Jinyoung Chun ,  Jinsoo Choi ,  Hangyu Cho ,  Eunsung Park

IPC: H04B7/00 ,  H04B1/00 ,  H04B1/04 ,  H04W88/06 ,  H04L5/00 ,  H04W84/04 ,  H04L27/26 ,  H04W48/10 ,  H04W48/12 ,  H04W74/00 ,  H04W84/12

Abstract: The present document relates to a wireless communication system and, more particularly, to a method for transmitting a frame in a high-density wireless LAN system, and a station device for performing the method. To this end, a station for transmitting a frame is comprised of a radio frame for a second type station comprising a frame portion for a first type station and a frame portion for the second type station, wherein the frame portion for the first type station comprises a first OFDM symbol for transmitting a signaling field (L-SIG) for the first type station, and the frame portion for the second type station comprises one or more second OFDM symbols for transmitting a signaling field (HE-SIG) for the second type station. Additionally, the radio frame for the second type station further comprises one or more third OFDM symbols for transmitting the L-SIG and the HE-SIG repeatedly.

公开(公告)号：US10021722B2

公开(公告)日：2018-07-10

申请号：US15317089

申请日：2015-04-27

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung Chun ,  Wookbong Lee ,  Jinsoo Choi ,  Dongguk Lim ,  Hangyu Cho

IPC: H04W4/00 ,  H04W74/08 ,  H04W72/12 ,  H04W72/04 ,  H04J13/18 ,  H04J4/00 ,  H04W84/12

CPC classification number: H04W74/0825 ,  H04J4/00 ,  H04J13/18 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/1284 ,  H04W74/0816 ,  H04W84/12

Abstract: Disclosed are a method and a device for receiving a frame in a wireless LAN. A method for receiving a frame in a wireless LAN comprises the steps of: an AP transmitting an RTS frame to a plurality of STAs, wherein the RTS frame comprises information for NAV setting of an STA other than the plurality of STAs; the AP receiving from each of the plurality of STAs, as a response to the RTS frame, a CTS PPDU and an additional CTS PPDU on overlapped time resources; and the AP transmitting an uplink transmission indication frame to the plurality of STAs, wherein the uplink transmission indication frame triggers transmission of an uplink frame of each of the plurality of STAs.

公开(公告)号：US09930706B2

公开(公告)日：2018-03-27

申请号：US14362066

申请日：2012-12-03

Applicant: LG ELECTRONICS INC.

Inventor： Jiwoong Jang ,  Dongcheol Kim ,  Hangyu Cho ,  Jinsoo Choi ,  Dongguk Lim

IPC: H04W76/02 ,  H04W8/26 ,  H04W4/00 ,  H04W8/00 ,  H04W48/12 ,  H04W76/00

CPC classification number: H04W76/11 ,  H04W4/70 ,  H04W8/005 ,  H04W8/26 ,  H04W48/12 ,  H04W76/14 ,  H04W76/40

Abstract: The present invention provides definition of an identifier which is required for recognizing information essential for device to device communication, a transmission method thereof, and devices that support the same. The method for supporting device to device (D2D) communication in a wireless access system that supports D2D communication as one embodiment of the present invention comprises the steps of allowing a first D2D device to receive, from a base station, a broadcast message which contains a common D2D identifier (C-D2D-RNTI) for all D2D devices that perform D2D communication; and allowing the first D2D device to receive the transmitted D2D-related information by using the C-D2D-RNTI. In this situation, the wireless access system can support both D2D communication and cellular communication for a normal terminal instead of the D2D device.

公开(公告)号：US09720069B2

公开(公告)日：2017-08-01

申请号：US14050809

申请日：2013-10-10

Applicant: LG ELECTRONICS INC. ,  UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNGHEE UNIVERSITY

Inventor： Dongguk Lim ,  Hyundong Shin ,  Youngmin Jeong ,  Hangyu Cho

IPC: G01S5/00 ,  G01S5/02

CPC classification number: G01S5/0027 ,  G01S5/0252 ,  G01S5/0263 ,  G01S5/0273

Abstract: A method of measuring a location of a user equipment (UE) located indoors in a wireless network includes receiving signals from a plurality of access points (APs), performing training for machine learning using the received signals or information acquired from the received signals, setting a weight vector to be applied to a relevance vector machine (RVM) method using data subjected to the training for machine learning, and applying RVM regression to the set weight vector and measured strengths of the received signals and determining whether the signals received from the plurality of APs are line of sight (LOS) signals or non line of sight (NLOS) signals.

公开(公告)号：US09634749B2

公开(公告)日：2017-04-25

申请号：US15275108

申请日：2016-09-23

Applicant: LG ELECTRONICS INC.

Inventor： Hyunsoo Ko ,  Sunam Kim ,  Dongguk Lim ,  Moonil Lee ,  Jaehoon Chung

IPC: H04B7/02 ,  H04B7/04 ,  H04B7/0417 ,  H04W72/04 ,  H04B7/06 ,  H04L5/00

CPC classification number: H04B7/0456 ,  H04B7/0417 ,  H04B7/0469 ,  H04B7/0478 ,  H04B7/0486 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/10 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/0028 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0053 ,  H04L5/0057 ,  H04L5/006 ,  H04L25/03343 ,  H04L2025/03426 ,  H04L2025/03808 ,  H04W48/08 ,  H04W72/00 ,  H04W72/0413 ,  H04W72/0446

Abstract: A method for transmitting channel status information (CSI) via uplink in a wireless communication system includes transmitting a first precoding matrix indicator (PMI) and a second PMI at a subframe. A subsampled codebook for each of a precoding codebook for Rank-1 and a precoding codebook for Rank-2 is determined based on at least the first PMI or the second PMI. In case of the Rank-1 or the Rank-2, a number of elements for the first PMI is 8.

公开(公告)号：US09602177B2

公开(公告)日：2017-03-21

申请号：US15058072

申请日：2016-03-01

Applicant: LG ELECTRONICS INC.

Inventor： Hyunsoo Ko ,  Sunam Kim ,  Dongguk Lim ,  Moonil Lee ,  Jaehoon Chung

IPC: H04B7/04 ,  H04B7/0417 ,  H04L1/00 ,  H04L5/00 ,  H04L25/03 ,  H04W72/04

CPC classification number: H04B7/0417 ,  H04B7/0486 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/0028 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0053 ,  H04L5/0057 ,  H04L25/03343 ,  H04L2025/03426 ,  H04L2025/03808 ,  H04W72/0413

Abstract: A method and apparatus for performing effective feedback in a wireless communication system supporting multiple antennas. A method for transmitting CSI of downlink transmission via uplink in a wireless communication system includes transmitting a joint-coded rank indicator (RI) and a first wideband (WB) precoding matrix indicator (PMI) at a first subframe, and transmitting a wideband channel quality indicator (WB CQI) and a second WB PMI at a second subframe. A user equipment (UE) preferred precoding matrix is indicated by a combination of the first PMI and the second PMI. If the RI is Rank-1 or Rank-2, the first PMI indicates one of subsets each having 8 indexes from among 16 indexes of the first PMI of a precoding codebook.

公开(公告)号：US09313669B2

公开(公告)日：2016-04-12

申请号：US14015903

申请日：2013-08-30

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk Lim ,  Dongcheol Kim ,  Jiwon Kang ,  Hangyu Cho ,  Sungho Park

IPC: H04W24/00 ,  G01S5/02 ,  H04W64/00

CPC classification number: H04W24/00 ,  G01S5/0252 ,  G01S5/0257 ,  G01S5/0263 ,  H04W64/00 ,  H04W64/003

Abstract: A method for measuring the indoor position of a UE by a network node according to an embodiment of the present invention may include: receiving, from the UE, measurement information including the intensity of a signal received from an access point (AP) and feedback information including information about a sensor configured to measure movement of the UE and sensor measurement information regarding movement of the UE, measured by the sensor; estimating the position of the UE based on the measurement information and received signal strength (RSS) from the AP, predetermined for each reference point; and calculating the indoor position of the UE by applying the information about the sensor and a sensor correction factor corresponding to the sensor measurement information to the estimated position of the UE.

Abstract translation: 根据本发明实施例的用于测量由网络节点的UE的室内位置的方法可以包括：从UE接收包括从接入点（AP）接收的信号的强度的测量信息和反馈信息 包括关于传感器的信息，所述传感器被配置为测量所述UE的移动和关于由所述传感器测量的所述UE的移动的传感器测量信息; 基于针对每个参考点预定的来自AP的测量信息和接收信号强度（RSS）来估计UE的位置; 以及通过将关于传感器的信息和与传感器测量信息相对应的传感器校正因子应用于UE的估计位置来计算UE的室内位置。

公开(公告)号：US09304187B2

公开(公告)日：2016-04-05

申请号：US14377798

申请日：2013-02-08

Applicant: LG ELECTRONICS INC.

Inventor： Jiwoong Jang ,  Dongguk Lim ,  Hangyu Cho

IPC: G01S5/14 ,  H04W64/00 ,  G01S5/02 ,  H04W76/02

CPC classification number: G01S5/145 ,  G01S5/0284 ,  G01S5/14 ,  H04W64/00 ,  H04W76/14

Abstract: The present invention relates to a method for estimating the positions of devices in direct communication with each other, to a method for estimating the structure of a network, and to apparatuses for supporting the methods. According to one embodiment of the present invention, the method for estimating the positions of devices in a wireless access system which supports direct D2D communication between the devices includes the steps of: obtaining information on distance estimation to an adjacent D2D device (for example, a second D2D device) by a D2D device having two reference points (for example, a first D2D device); and estimating the position of the D2D device by using the information on distance estimation and the position information on the two reference points, at which time the information on distance estimation can be obtained through direct D2D communication between the D2D device and the adjacent D2D device.

Abstract translation: 本发明涉及一种用于估计彼此直接通信的设备的位置的方法，一种用于估计网络的结构的方法以及用于支持该方法的设备。 根据本发明的一个实施例，用于估计支持设备之间的直接D2D通信的无线接入系统中的设备的位置的方法包括以下步骤：获得关于相邻D2D设备的距离估计的信息（例如， 第二D2D设备）通过具有两个参考点的D2D设备（例如，第一D2D设备）; 并通过使用关于距离估计的信息和关于两个参考点的位置信息来估计D2D设备的位置，此时可以通过D2D设备和相邻D2D设备之间的直接D2D通信获得关于距离估计的信息。

公开(公告)号：US09209883B2

公开(公告)日：2015-12-08

申请号：US14528728

申请日：2014-10-30

Applicant: LG ELECTRONICS INC.

Inventor： Hyunsoo Ko ,  Sunam Kim ,  Dongguk Lim ,  Moonil Lee ,  Jaehoon Chung

IPC: H04B7/06 ,  H04L1/00 ,  H04L5/00 ,  H04L25/03 ,  H04W48/08 ,  H04W72/00

CPC classification number: H04B7/0456 ,  H04B7/0417 ,  H04B7/0469 ,  H04B7/0478 ,  H04B7/0486 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/10 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/0028 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0053 ,  H04L5/0057 ,  H04L5/006 ,  H04L25/03343 ,  H04L2025/03426 ,  H04L2025/03808 ,  H04W48/08 ,  H04W72/00 ,  H04W72/0413 ,  H04W72/0446

Abstract: A method for transmitting channel status information (CSI) of downlink transmission via uplink in a wireless communication system includes transmitting a rank indicator (RI) and a precoder type indicator (PTI) at a first subframe, transmitting at a second subframe a first precoding matrix indicator (PMI) when the PTI has a first value and transmitting a second PMI and a wideband channel quality indicator (WB CQI) when the PTI has a second value, and transmitting at a third subframe a second PMI and a WB CQI when the PTI has a first value and transmitting a subband (SB) CQI and a second PMI when the PTI has a second value. A user equipment (UE) preferred precoding matrix is indicated by a combination of the first PMI and the second PMI. Subsampled codebooks of precoding codebooks of individual Rank-2, Rank-3 and Rank-4 are applied to the second PMI.

Abstract translation: 一种用于在无线通信系统中经由上行链路传输下行链路传输的信道状态信息（CSI）的方法，包括在第一子帧处发送秩指示符（RI）和预编码器类型指示符（PTI），在第二子帧处发送第一预编码矩阵 当PTI具有第一值并且当PTI具有第二值时发送第二PMI和宽带信道质量指示符（WB CQI）时，当PTI具有第一值并且当PTI发送时，在第三子帧发送第二PMI和WB CQI，指示符（PMI） 具有第一值并且当PTI具有第二值时发送子带（SB）CQI和第二PMI。 用户设备（UE）优选预编码矩阵由第一PMI和第二PMI的组合指示。 个别Rank-2，Rank-3和Rank-4的预编码码本的二次采样码本应用于第二PMI。