公开(公告)号：US09362997B2

公开(公告)日：2016-06-07

申请号：US14865654

申请日：2015-09-25

Applicant: LG ELECTRONICS INC.

Inventor： Jinmin Kim ,  Sunam Kim ,  Binchul Ihm ,  Hyukmin Son ,  Jaehoon Chung

IPC: H04B7/02 ,  H04L1/02 ,  H04B7/04 ,  H04B7/06 ,  H04W16/28

CPC classification number: H04B7/0456 ,  H04B7/0408 ,  H04B7/0417 ,  H04B7/061 ,  H04B7/0617 ,  H04B7/0639 ,  H04B7/0695 ,  H04W16/28

Abstract: A method for performing hierarchical beamforming in a wireless access system and a device therefor are disclosed. Particularly, the method comprises: an initial step for allowing a base station to transmit a plurality of first beams, to which different steering vectors are applied, to a terminal through corresponding reference signals, and a repetition step for allowing the base station to transmit a plurality of second beams, to which different steering vectors are applied, to the terminal through corresponding reference signals by considering feedback information that contains an index of one or more beams received from the terminal, wherein the repetition step can be repeated up to a predetermined number of times.

公开(公告)号：US09356670B2

公开(公告)日：2016-05-31

申请号：US14688882

申请日：2015-04-16

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/02 ,  H04B7/04 ,  H04B7/06 ,  H04L1/00 ,  H04L25/03 ,  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：US09295039B2

公开(公告)日：2016-03-22

申请号：US14269393

申请日：2014-05-05

Applicant: LG ELECTRONICS INC.

Inventor： Seunghee Han ,  Dongcheol Kim ,  Sungho Moon ,  Hangyu Cho ,  Jinmin Kim ,  Hyunwoo Lee ,  Jaehoon Chung

IPC: H04W52/14 ,  H04W72/04 ,  H04L1/00 ,  H04L1/16 ,  H04W52/32 ,  H04W52/48 ,  H04L1/18 ,  H04L5/00 ,  H04W72/12 ,  H04W52/24 ,  H04W52/36

CPC classification number: H04W52/146 ,  H04L1/0028 ,  H04L1/0031 ,  H04L1/0073 ,  H04L1/1671 ,  H04L1/1678 ,  H04L1/1692 ,  H04L1/1812 ,  H04L1/1887 ,  H04L5/0055 ,  H04L5/14 ,  H04W52/143 ,  H04W52/242 ,  H04W52/325 ,  H04W52/367 ,  H04W52/48 ,  H04W72/0413 ,  H04W72/1284

Abstract: A wireless communication system is disclosed. Disclosed herein are methods for transmitting a physical uplink control channel (PUCCH) signal in a wireless communication system, which includes setting transmit power for the PUCCH signal, and an apparatus thereof. If the PUCCH signal is transmitted on a subframe configured for a scheduling request (SR), the PUCCH signal includes one or more hybrid automatic repeat request acknowledgement (HARQ-ACK) bits and an SR bit. When determining the transmit power for the PUCCH, the SR bit is selectively considered depending on whether or not a transport block for an uplink shared channel (UL-SCH) is present in the subframe.

公开(公告)号：US09185681B2

公开(公告)日：2015-11-10

申请号：US14510865

申请日：2014-10-09

Applicant: LG ELECTRONICS INC.

Inventor： Heejong Cho ,  Hyeyoung Choi ,  Eunjong Lee ,  Jaehoon Chung ,  Geenbeck Hahn

IPC: H04W68/00

CPC classification number: H04W68/005 ,  H04W60/00 ,  H04W64/006

Abstract: A method and apparatus for transmitting a paging message in a cloud radio access network (RAN) system is provided. A baseband unit (BBU) or a mobility management entity (MME) determines a location update range of a user equipment (UE) based on moving speed and a moving direction of the UE, and transmits information this to the UE. The UE transmits information on moving information of the UE, which is determined based on the received information and a measurement result with respect to at least one accessible remote radio frequency (RF) unit (RRU) of the UE, and the measurement result to the BBU or the MME; and The BBU or MME updates the location update range of the UE based on the received measurement result and the moving information of the UE, and transmits a paging message to the UE through at least one RRU included in the updated location update range of the UE.

Abstract translation: 提供了一种用于在云无线接入网（RAN）系统中发送寻呼消息的方法和装置。 基带单元（BBU）或移动性管理实体（MME）基于UE的移动速度和移动方向确定用户设备（UE）的位置更新范围，并向UE发送信息。 UE根据所接收到的信息确定UE的移动信息的信息和关于UE的至少一个可访问的远程射频（RF）单元（RRU）的测量结果，并将测量结果发送给 BBU或MME; BBU或MME基于接收到的测量结果和UE的移动信息来更新UE的位置更新范围，并且通过包括在UE的更新的位置更新范围中的至少一个RRU向UE发送寻呼消息 。

公开(公告)号：US20150288425A1

公开(公告)日：2015-10-08

申请号：US14441801

申请日：2013-12-02

Applicant: LG ELECTRONICS INC.

Inventor： Jinmin Kim ,  Kitae Kim ,  Hyunsoo Ko ,  Jaehoon Chung

IPC: H04B7/01 ,  H04B7/06

CPC classification number: H04B7/01 ,  H04B7/0617 ,  H04L25/0222 ,  H04L27/2646 ,  H04L27/2657 ,  H04L27/2692

Abstract: The present invention provides methods for relieving effective Doppler broadening in performing pin-point beamforming and provides apparatuses for supporting the methods, wherein the methods and the apparatuses are used in a wireless access system that supports a super high frequency band. The method for relieving Doppler broadening in a wireless access system that supports a super high frequency band according to one embodiment of the present invention may comprise the steps of: receiving a downlink signal at a receiving end; estimating a Doppler spectrum for the downlink signal received at the receiving end; and calculating a carrier wave shift value based on the Doppler spectrum estimated at the receiving end.

Abstract translation: 本发明提供了减少执行针点波束形成的有效多普勒展宽的方法，并且提供了用于支持方法的装置，其中所述方法和装置用于支持超高频带的无线接入系统。 根据本发明的一个实施例的在支持超高频带的无线接入系统中减轻多普勒拓宽的方法可以包括以下步骤：在接收端接收下行链路信号; 估计在接收端接收的下行链路信号的多普勒频谱; 以及基于在接收端估计的多普勒频谱计算载波移位值。

公开(公告)号：US20150282178A1

公开(公告)日：2015-10-01

申请号：US14437465

申请日：2013-10-22

Applicant: LG Electronics Inc.

Inventor： Kitae Kim ,  Jinmin Kim ,  Hyunsoo Ko ,  Jaehoon Chung

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/0453 ,  H04B7/2656 ,  H04L5/003 ,  H04L27/2602

Abstract: Flexible employment of frame configuration in light of the Doppler frequency change is proposed. According to the present invention, frame configuration for a predetermined frequency band may be changed. Changing frame configuration in the present invention may include changing subcarrier spacing.

Abstract translation: 提出了根据多普勒频率变化灵活使用帧配置。 根据本发明，可以改变预定频带的帧配置。 在本发明中改变帧配置可以包括改变子载波间隔。

公开(公告)号：US20150215008A1

公开(公告)日：2015-07-30

申请号：US14414325

申请日：2013-03-19

Applicant: LG Electronics Inc.

Inventor： Heejeong Cho ,  Eunjong Lee ,  Jaehoon Chung

IPC: H04B7/02 ,  H04W8/00 ,  H04W40/12 ,  H04W40/20 ,  H04W76/02 ,  H04W40/22

CPC classification number: H04B7/026 ,  H04B7/024 ,  H04W8/005 ,  H04W40/12 ,  H04W40/20 ,  H04W40/22 ,  H04W76/14 ,  H04W88/04

Abstract: A method and apparatus for determining candidate cooperative devices of client cooperation in a wireless communication system is provided. In addition, a method and apparatus for determining candidate source devices of client cooperation in a wireless communication system is provided. In addition, a method and apparatus for determining cooperative devices of client cooperation in a wireless communication system is provided. The client cooperation helps a source device communicating with a base station through a cooperative device.

Abstract translation: 提供了一种用于确定无线通信系统中客户端协作的候选协同设备的方法和装置。 此外，提供了一种用于确定无线通信系统中的客户端协作的候选源设备的方法和装置。 此外，提供了一种用于确定无线通信系统中的客户端协作的协作设备的方法和装置。 客户端合作帮助源设备通过协作设备与基站进行通信。

公开(公告)号：US20150207547A1

公开(公告)日：2015-07-23

申请号：US14418810

申请日：2013-08-26

Applicant: LG ELECTRONICS INC.

Inventor： Hyunsoo Ko ,  Jinmin Kim ,  Jaehoon Chung

IPC: H04B7/04 ,  H04L5/00 ,  H04W72/04 ,  H04B7/06 ,  H04W24/08

CPC classification number: H04B7/046 ,  H04B7/0417 ,  H04B7/0456 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/0626 ,  H04B7/0639 ,  H04L5/0053 ,  H04L5/0091 ,  H04W24/08 ,  H04W72/0413

Abstract: The present invention relates to a wireless communication system, and more specifically, disclosed are a method and an apparatus for transmitting a codebook-based signal. A method for transmitting channel state information from a terminal in the wireless communication system, according to one embodiment of the present invention, comprises the steps of: measuring a downlink channel from a downlink signal that is received from a base station; determining a first precoding matrix indicator (PMI) and a second PMI of the downlink channel based on the measurement of the downlink channel; and transmitting the first PMI and the second PMI to the base station, wherein the first PMI indicates a first precoding vector that includes a first elevation angle component of a multi-antenna of the base station, the second PMI indicates a second precoding vector that includes a second elevation angle component and an azimuth angle component of the multi-antenna of the base station, and wherein resolution of the azimuth angle component can be determined based on the first elevation angle component or the second elevation angle component.

Abstract translation: 无线通信系统技术领域本发明涉及一种无线通信系统，更具体地说，涉及发送基于码本的信号的方法和装置。 根据本发明的一个实施例，一种从无线通信系统中的终端发送信道状态信息的方法包括以下步骤：从从基站接收的下行链路信号测量下行信道; 基于所述下行链路信道的测量来确定所述下行链路信道的第一预编码矩阵指示符（PMI）和第二PMI; 以及将所述第一PMI和所述第二PMI发送到所述基站，其中，所述第一PMI指示包括所述基站的多天线的第一仰角分量的第一预编码向量，所述第二PMI指示包括 基站的多天线的第二仰角分量和方位角分量，并且其中可以基于第一仰角分量或第二​​仰角分量来确定方位角分量的分辨率。

公开(公告)号：US09077402B2

公开(公告)日：2015-07-07

申请号：US14355553

申请日：2012-11-07

Applicant: LG ELECTRONICS INC.

Inventor： Wookbong Lee ,  Jaehoon Chung ,  Jinsam Kwak ,  Hyunsoo Ko

IPC: H04B7/04 ,  H04L1/06 ,  H04B7/06 ,  H04L1/00 ,  H04L25/02

CPC classification number: H04B7/0417 ,  H04B7/046 ,  H04B7/0469 ,  H04B7/0478 ,  H04B7/0639 ,  H04B7/065 ,  H04L1/0028 ,  H04L1/06 ,  H04L25/0204

Abstract: A method for feeding back codebook-based precoding matrix information by a receiving side includes estimating a channel through a receiving signal received from a transmitting side; selecting first and second precoding matrix indexes for indicating precoding matrices selected in a predefined codebook based upon said estimated channel; and transmitting said selected first and second precoding matrix indexes to said transmitting side, wherein said predefined codebook supports antenna patterns at the receiving side, precoder (W) in the predefined codebook is expressed as a multiplication of two precoding matrices (W1 and W2), W1 is constituted as an oversampled discrete Fourier transform (DFT) matrix by a diagonal matrix, an element which reflects a factor in accordance with an antenna pattern configuration of said receiving side is included, and said first precoding matrix index indicates a precoding matrix selected from W1 and said second precoding matrix index indicates a precoding matrix selected from W2.

Abstract translation: 一种用于由接收侧反馈基于码本的预编码矩阵信息的方法包括：通过从发送侧接收的接收信号来估计信道; 基于所述估计的信道，选择用于指示在预定码本中选择的预编码矩阵的第一和第二预编码矩阵索引; 以及将所述选择的第一和第二预编码矩阵索引发送到所述发送侧，其中所述预定码本支持接收侧的天线方向图，预定码本中的预编码器（W）表示为两个预编码矩阵（W1和W2）的乘法， W1被对角矩阵构成为过采样离散傅立叶变换（DFT）矩阵，包括反映根据所述接收侧的天线方向图配置的因子的元素，并且所述第一预编码矩阵索引表示从 W1和所述第二预编码矩阵索引指示从W2选择的预编码矩阵。

公开(公告)号：US20150162979A1

公开(公告)日：2015-06-11

申请号：US14408532

申请日：2013-06-17

Applicant: LG ELECTRONICS INC.

Inventor： Youngsoo Yuk ,  Jaehoon Chung ,  Hyeyoung Choi ,  Hyunsoo Ko

IPC: H04B7/26 ,  H04L5/14 ,  H04W72/04 ,  H04W72/12

CPC classification number: H04B7/2656 ,  H04B7/2643 ,  H04L5/001 ,  H04L5/0048 ,  H04L5/0069 ,  H04L5/0073 ,  H04L5/14 ,  H04L5/1469 ,  H04W72/0426 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/082 ,  H04W72/1268

Abstract: A method of transceiving a signal by a base station using a TDD frame structure in a wireless communication system, includes transceiving the signal using a TDD frame in accordance with the TDD frame structure, wherein the TDD frame comprises a static downlink subframe region, a static uplink subframe region and a dynamic region changeable into a downlink subframe or an uplink subframe, wherein the TDD frame is configured in a manner that at least one of the static downlink subframe region, the status uplink subframe region and the dynamic region is assigned to a user equipment in consideration of a location of the user equipment in a cell, and wherein the signal is transceived with the user equipment via at least one region assigned in the TDD frame.

Abstract translation: 一种在无线通信系统中使用TDD帧结构由基站收发信号的方法包括根据TDD帧结构使用TDD帧收发信号，其中TDD帧包括静态下行链路子帧区域，静态 上行链路子帧区域以及可变化为下行链路子帧或上行链路子帧的动态区域，其中，所述TDD帧被配置为使得静态下行链路子帧区域，状态上行链路子帧区域和动态区域中的至少一个被分配给 考虑到小区中的用户设备的位置的用户设备，并且其中所述信号经由在TDD帧中分配的至少一个区域与用户设备收发。