公开(公告)号：US09794918B2

公开(公告)日：2017-10-17

申请号：US15145588

申请日：2016-05-03

Applicant: LG ELECTRONICS INC.

Inventor： Ji Won Kang ,  Jin Young Chun ,  Min Seok Noh ,  Ki Tae Kim ,  Su Nam Kim ,  Bin Chul Ihm ,  Sung Ho Park

IPC: H04W72/04 ,  H04L23/02 ,  H04B1/10 ,  H04W56/00 ,  H04W4/00 ,  H04L5/00

CPC classification number: H04W72/0413 ,  H04B1/10 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0053 ,  H04L23/02 ,  H04W4/70 ,  H04W56/001 ,  H04W56/0035

Abstract: A method of transmitting an uplink reference signal of a user equipment (UE) in a multi-node system is described. The method according to an embodiment includes receiving a synchronization signal from a node; receiving a parameter for a virtual cell identifier (ID) from the node; generating an uplink demodulation reference signal (DM-RS) using the parameter for the virtual cell ID; and transmitting the generated uplink DM-RS to the node. A physical cell ID is a cell ID obtained from the synchronization signal, and the parameter for the virtual cell ID is a parameter used for generating the uplink DM-RS in the replacement of the physical cell ID.

公开(公告)号：US09787452B2

公开(公告)日：2017-10-10

申请号：US15341335

申请日：2016-11-02

Applicant: LG ELECTRONICS INC.

Inventor： Ji Won Kang ,  Jin Young Chun ,  Ki Tae Kim ,  Su Nam Kim ,  Bin Chul Ihm ,  Sung Ho Park

IPC: H04W4/00 ,  H04L5/00 ,  H04L1/00 ,  H04W74/00 ,  H04W72/04 ,  H04W76/04

CPC classification number: H04L5/0053 ,  H04L1/0026 ,  H04L1/0029 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0048 ,  H04L5/0057 ,  H04W72/04 ,  H04W72/0406 ,  H04W74/006 ,  H04W76/27

Abstract: A method is presented for receiving aperiodic channel state information (CSI). A base station (BS) transmits a CSI request field which is set to trigger a CSI report to a user equipment (UE). The BS receives CSI through a physical uplink shared channel (PUSCH) from the UE. The CSI request field has a value among a plurality of candidate values. The plurality of candidate values comprises a first value which triggers an aperiodic CSI report for a first set of reference signals and a second value which triggers an aperiodic CSI report for a second set of reference signals.

公开(公告)号：US09775060B2

公开(公告)日：2017-09-26

申请号：US14351440

申请日：2012-10-12

Applicant: LG ELECTRONICS INC.

Inventor： Ji Won Kang ,  Jin Young Chun ,  Ki Tae Kim ,  Su Nam Kim ,  Bin Chul Ihm ,  Sung Ho Park

IPC: H04L12/16 ,  H04W24/08 ,  H04J11/00 ,  H04L5/00 ,  H04B7/06 ,  H04L25/02

CPC classification number: H04W24/08 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0639 ,  H04J11/0023 ,  H04L5/0023 ,  H04L5/0057 ,  H04L25/0226

Abstract: Provided are a method and apparatus for a UE (user equipment) to provide reference signal feedback in a wireless communication system. The method includes: receiving, from a base station, CSI-RS configuration information for configuring CSI-RS (channel state information reference signal) patterns, the CSI-RS configuration information containing usage information; performing a first measurement for radio resource management on all CSI-RS patterns configured based on the CSI-RS configuration information; and performing a second measurement only on CSI-RS patterns corresponding to the usage information, the second measurement being determined by the usage indicated by the usage information.

公开(公告)号：US09681429B2

公开(公告)日：2017-06-13

申请号：US14348797

申请日：2012-10-12

Applicant: LG ELECTRONICS INC.

Inventor： Ji Won Kang ,  Jin Young Chun ,  Ki Tae Kim ,  Su Nam Kim ,  Bin Chul Ihm ,  Sung Ho Park

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/042 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0053 ,  H04L5/0094

Abstract: Disclosed are a method and a device for allocating a search space of a control channel in a subframe. A method for monitoring downlink control information comprises the steps of: acquiring first control information on a first enhanced-physical downlink control channel (e-PDCCH) by monitoring a common search space in a first slot of a subframe; and acquiring second control information on a second e-PDCCH by monitoring a user equipment (UE)-specific search space in a second slot of the subframe. Thus, a terminal can obtain cell-specific information through an e-PDCCH even without a legacy physical downlink control channel (PDCCH).

公开(公告)号：US09609644B2

公开(公告)日：2017-03-28

申请号：US14865527

申请日：2015-09-25

Applicant: LG ELECTRONICS INC.

Inventor： Ji Won Kang ,  Jin Young Chun ,  Su Nam Kim ,  Bin Chul Ihm ,  Sung Ho Park

IPC: H04W80/04 ,  H04W72/04 ,  H04B7/024 ,  H04B7/0452 ,  H04L5/00 ,  H04B7/0417 ,  H04B7/26 ,  H04L27/26 ,  H04W88/02

CPC classification number: H04W72/042 ,  H04B7/024 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/2656 ,  H04L5/0023 ,  H04L5/0032 ,  H04L5/0035 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0076 ,  H04L27/2626 ,  H04W88/02

Abstract: According to one aspect of the present invention, antennas or antenna nodes spaced away from each other by a predetermined distance or more are configured to be able to transmit control information of mutually different user equipment groups, thereby increasing the efficiency in the operation of control channels. In addition, according to another aspect of the present invention, a resource region for transmitting control information for an improved user equipment, which is a target of a multi-node cooperative transmission, is set differently from a resource region for transmitting control information for a legacy user equipment, thereby increasing the efficiency in the transmission of the control information for the improved user equipment.

公开(公告)号：US09497737B2

公开(公告)日：2016-11-15

申请号：US14355186

申请日：2012-10-30

Applicant: LG ELECTRONICS INC.

Inventor： Bin Chul Ihm ,  Ki Tae Kim ,  Su Nam Kim ,  Ji Won Kang ,  Jin Young Chun ,  Sung Ho Park

IPC: H04W72/04 ,  H04B7/26 ,  H04J11/00 ,  H04L1/00 ,  H04L5/00 ,  H04L25/03

CPC classification number: H04W72/0406 ,  H04B7/26 ,  H04J11/00 ,  H04J11/0079 ,  H04L1/0038 ,  H04L1/0046 ,  H04L1/0061 ,  H04L1/0071 ,  H04L1/0072 ,  H04L5/0007 ,  H04L5/0053 ,  H04L25/03866

Abstract: Provided are a method for searching for a control channel by a user terminal in a multi-node system and a user terminal using the method. The method comprises: setting a first common search space (CSS) and a second CSS, which are distinguishable, in a subframe comprising a plurality of orthogonal frequency division multiplexing (OFDM) symbols; and searching for control information from the first CSS and/or the second CSS, wherein in the first CSS a first piece of control information that is cyclic redundancy check (CRC)-scrambled by a radio network temporary identifier (RNTI) belonging to a first RNTI set is searched, and wherein in the second CSS a second piece of control information that is CRC-scrambled by an RNTI belonging to a second RNTI set is searched.

Abstract translation: 提供了一种用于在多节点系统中的用户终端和使用该方法的用户终端搜索控制信道的方法。 该方法包括：在包括多个正交频分复用（OFDM）符号的子帧中设置可区分的第一公共搜索空间（CSS）和第二CSS; 以及从所述第一CSS和/或所述第二CSS搜索控制信息，其中在所述第一CSS中，所述第一控制信息是由属于第一CSS的无线电网络临时标识符（RNTI）加扰的循环冗余校验（CRC）的第一控制信息 搜索RNTI集合，并且其中在第二CSS中搜索由属于第二RNTI集合的RNTI对CRC加扰的第二条控制信息。

公开(公告)号：US09363056B2

公开(公告)日：2016-06-07

申请号：US14348492

申请日：2012-09-28

Applicant: LG ELECTRONICS INC.

Inventor： Jin Young Chun ,  Ki Tae Kim ,  Su Nam Kim ,  Sung Ho Park ,  Bin Chul Ihm ,  Ji Won Kang

IPC: H04L5/00 ,  H04W24/08 ,  H04J11/00

CPC classification number: H04L5/0048 ,  H04J11/0023 ,  H04J11/0079 ,  H04L5/0035 ,  H04W24/08

Abstract: Provided are a method for operating a user equipment in a wireless communication system and the user equipment for performing same. The user equipment receives a plurality of channel state information (CSI) reference signal (RS) configurations for indicating different usages, and performs an action based on each of the CSI RS configurations.

Abstract translation: 提供了一种用于在无线通信系统中操作用户设备的方法和用于执行其的用户设备。 用户设备接收用于指示不同用途的多个信道状态信息（CSI）参考信号（RS）配置，并且基于每个CSI RS配置来执行动作。

公开(公告)号：US20140286189A1

公开(公告)日：2014-09-25

申请号：US14355191

申请日：2012-10-30

Applicant: LG ELECTRONICS INC.

Inventor： Ji Won Kang ,  Jin Young Chun ,  Ki Tae Kim ,  Su Nam Kim ,  Bin Chul Ihm ,  Sung Ho Park

IPC: H04W24/06

CPC classification number: H04W24/10 ,  H04B7/0417 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04B17/345 ,  H04W24/06 ,  H04W52/244 ,  H04W52/283 ,  H04W52/325

Abstract: Provided is a method for measuring interference by a user equipment (UE) in a multi-node system comprising inside a cell a base station and a plurality of nodes that are controlled by the base station, and the user equipment for same. The method comprises: receiving from the base station a cell-specific interference measurement setting message; and measuring the interference in a resource region indicated by the cell-specific interference measurement setting message, wherein the cell-specific interference measurement setting message is characterized by all of the nodes in the cell comprising information for setting a cell-specific interference measurement region for transmitting a zero-power channel state information (CSI) reference signal (RS).

Abstract translation: 提供了一种用于在多节点系统中测量用户设备（UE）的干扰的方法，该多节点系统包括基站内的小区内的基站和由基站控制的多个节点，以及用于其的用户设备。 该方法包括：从基站接收小区特定干扰测量设置消息; 并测量由小区特定干扰测量设置消息指示的资源区域中的干扰，其中小区特定干扰测量设置消息由小区中的所有节点表征，包括用于设置小区特定干扰测量区域的信息， 发送零功率信道状态信息（CSI）参考信号（RS）。

公开(公告)号：US10020924B2

公开(公告)日：2018-07-10

申请号：US15702025

申请日：2017-09-12

Applicant: LG ELECTRONICS INC.

Inventor： Ji Won Kang ,  Jin Young Chun ,  Ki Tae Kim ,  Su Nam Kim ,  Bin Chul Ihm ,  Sung Ho Park

IPC: H04W4/00 ,  H04L5/00 ,  H04W76/04 ,  H04L1/00 ,  H04W72/04 ,  H04W74/00 ,  H04W76/27

CPC classification number: H04L5/0053 ,  H04L1/0026 ,  H04L1/0029 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0048 ,  H04L5/0057 ,  H04W72/04 ,  H04W72/0406 ,  H04W74/006 ,  H04W76/27

Abstract: A method is provided for receiving aperiodic channel state information (CSI). A base station (BS) transmits, to a user equipment (UE), an uplink downlink control information (DCI) format. The BS receives, from the UE, aperiodic CSI through a physical uplink shared channel (PUSCH) if the BS triggers an aperiodic CSI report using a CSI request field included in the uplink DCI format. The CSI request field is either a 1-bit field or a multi-bit field. When the UE is configured with only one cell, the 1-bit field is included in the uplink DCI. When the UE is configured with more than one channel state information-reference signal (CSI-RS), the multi-bit field is included in the uplink DCI.

公开(公告)号：US09578532B2

公开(公告)日：2017-02-21

申请号：US14359054

申请日：2012-11-23

Applicant: LG ELECTRONICS INC.

Inventor： Jin Young Chun ,  Bin Chul Ihm ,  Ji Won Kang ,  Ki Tae Kim ,  Sung Ho Park ,  Su Nam Kim

IPC: H04L5/00 ,  H04W24/10 ,  H04B7/04 ,  H04B7/06

CPC classification number: H04W24/10 ,  H04B7/0456 ,  H04B7/0617 ,  H04B7/0665 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0053 ,  H04L5/0057

Abstract: Provided are a method and an apparatus for measuring channel quality indicator in a wireless communication system. User equipment receives, from a base station, at least one of a cell-specific reference signal (CRS) which is cell-specifically transmitted and a channel state information reference signal (CSI RS). The user equipment also receives, from the base station, a demodulation reference signal (DMRS) which is user equipment-specifically transmitted in an enhanced physical downlink control channel (e-PDCCH) region constituted in a physical downlink shared channel (PDSCH) region. The terminal measures the CQI based on either at least one of the CRS and the CSI RS or the DMRS.

Abstract translation: 提供了一种用于在无线通信系统中测量信道质量指示符的方法和装置。 用户设备从基站接收小区特定发送的小区特定参考信号（CRS）和信道状态信息参考信号（CSI RS）中的至少一个。 用户设备还从基站接收在物理下行链路共享信道（PDSCH）区域中构成的增强物理下行链路控制信道（e-PDCCH）区域中专门发送的用户设备的解调参考信号（DMRS）。 终端基于CRS和CSI RS或DMRS中的至少一个来测量CQI。