公开(公告)号：US20160135227A1

公开(公告)日：2016-05-12

申请号：US14904383

申请日：2014-04-09

Applicant: LG ELECTRONICS INC.

Inventor： Genebeck HAHN ,  Jaehoon CHUNG ,  Hyeyoung CHOI ,  Eunjong LEE ,  Heejeong CHO

IPC: H04W74/08 ,  H04W24/02

CPC classification number: H04W74/0833 ,  H04W24/02 ,  H04W88/085

Abstract: Disclosed are: a terminal for selecting RRUs of which a connection state with the terminal is a critical value or more from among a plurality of RRUs on the basis of down signals received from the RRUs, transmitting an RRU list including information on the selected RRUs and a random access preamble to an RRU having the best connection state with the terminal among the selected RRUs, receiving an access information response message indicating a preferred RRU with which a random access is to be performed by the terminal from any one RRU among the selected RRUs and performing a random access process with the preferred RRU; and a method for performing random access by the terminal.

Abstract translation: 公开了：根据从RRU接收到的下行信号，从多个RRU中选择与终端的连接状态为关键值或更多的RRU的终端，发送包括关于所选择的RRU的信息的RRU列表，以及 在所选择的RRU中具有与终端具有最佳连接状态的RRU的随机接入前同步码;接收指示优选RRU的接入信息响应消息，所述RRU与所选择的RRU中的任何一个RRU在终端之间执行随机接入 并使用优选的RRU执行随机访问过程; 以及用于执行终端的随机访问的方法。

公开(公告)号：US20160134380A1

公开(公告)日：2016-05-12

申请号：US14988426

申请日：2016-01-05

Applicant: LG ELECTRONICS INC.

Inventor： Jinmin KIM ,  Jaehoon CHUNG ,  Genebeck HAHN ,  Eunjong LEE ,  Kukheon CHOI ,  Kwangseok NOH

IPC: H04B15/02 ,  H04B1/48

CPC classification number: H04B15/02 ,  H04B1/48 ,  H04B1/525 ,  H04B7/026 ,  H04B7/0626 ,  H04B7/24 ,  H04B15/00 ,  H04B2001/485

Abstract: An apparatus for cancelling a self-interference signal between a transmission antenna and a reception antenna is disclosed. The apparatus includes a first self-interference signal cancellation unit for cancelling a self-interference signal in consideration of a linear channel between the transmission antenna and the reception antenna, a second self-interference signal cancellation unit for cancelling a self-interference signal in consideration of nonlinear channel characteristic between the transmission antenna and the reception antenna or linear characteristic of a radio channel, and a controller for comparing a transmitted signal output from the transmission antenna and a received signal received by the reception antenna to provide a first coefficient to be applied to self-interference signal cancellation of a linear device in the first self-interference signal cancellation unit and a second coefficient to be applied to self-interference signal cancellation of a nonlinear device in the second self-interference signal cancellation unit.

公开(公告)号：US20160094324A1

公开(公告)日：2016-03-31

申请号：US14891927

申请日：2014-02-21

Applicant: LG ELECTRONICS INC.

Inventor： Kilbom LEE ,  Jiwon KANG ,  Hyunsoo KO ,  Jaehoon CHUNG

IPC: H04L5/00 ,  H04W72/04 ,  H04L29/08 ,  H04B7/04

CPC classification number: H04L5/0048 ,  H04B7/0413 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/0051 ,  H04L5/0091 ,  H04L67/1044 ,  H04W72/0413

Abstract: Grouping based reference signal transmission scheme for massive MIMO is disclosed. UEs are grouped and each UE group receive first information on which of uplink transmission time units is enabled to transmit an uplink reference signal and second information on a sequence used for the uplink reference signal from a base station. The above first information is differently determined to second UE group other than a first UE group including the first UE. And, the second information is determined to assign orthogonal sequences to the first UE group.

Abstract translation: 公开了用于大规模MIMO的基于分组的参考信号传输方案。 UE被分组，并且每个UE组接收关于哪个上行链路传输时间单元被启用以发送上行链路参考信号的第一信息和关于来自基站的用于上行链路参考信号的序列的第二信息。 上述第一信息被不同于包括第一UE的第一UE组以外的第二UE组被不同地确定。 并且，确定第二信息以将正交序列分配给第一UE组。

公开(公告)号：US20160073392A1

公开(公告)日：2016-03-10

申请号：US14785560

申请日：2013-09-06

Applicant: LG ELECTRONICS INC.

Inventor： Ilmu BYUN ,  Jaehoon CHUNG ,  Eunjong LEE ,  Hyeyoung CHOI ,  Heejeong CHO ,  Genebeck HAHN

IPC: H04W72/04 ,  H04L5/14

CPC classification number: H04W72/048 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0066 ,  H04L5/14 ,  H04W72/0413 ,  H04W72/0446 ,  H04W76/14

Abstract: Provided are an apparatus and a method for allocating resources in a wireless communication system. In particular, the present invention includes the feature of alternately allocating resources for D2D communication and resources for cellular communication, or allocating resources of a D2D link to not be adjacent to each other. In addition, the present invention prevents interference with the cellular communication and interference with other D2D links by allocating a partial area of the resources allocated for the D2D communication to an area for transmitting a D2D uplink symbol to an eNB, or by adding a GP symbol to a partial area of the resources for the D2D communication. Furthermore, in the case of applying a TDD scheme, the present invention prevents interference with symbols for performing the cellular communication by defining a partial section of a special subframe as a section for transmitting the D2D uplink symbol, or by reflecting a time delay of N OFDM symbol durations. Accordingly, the present invention prevents the D2D communication from causing interference.

Abstract translation: 提供了一种用于在无线通信系统中分配资源的装置和方法。 特别地，本发明包括交替地分配用于D2D通信的资源和用于蜂窝通信的资源或者将D2D链路的资源分配给彼此不相邻的特征。 此外，本发明通过将分配给D2D通信的资源的部分区域分配给用于发送D2D上行链路符号的区域到eNB，或者通过添加GP符号来防止对蜂窝通信的干扰和对其他D2D链路的干扰 到D2D通信的资源的一部分区域。 此外，在应用TDD方案的情况下，本发明通过将特殊子帧的部分部分定义为用于发送D2D上行链路符号的部分，或通过反映N的延迟来防止对用于执行蜂窝通信的符号的干扰 OFDM符号持续时间。 因此，本发明防止D2D通信引起干扰。

公开(公告)号：US20160072572A1

公开(公告)日：2016-03-10

申请号：US14888330

申请日：2014-06-25

Applicant: LG ELECTRONICS INC.

Inventor： Jiwon KANG ,  Jaehoon CHUNG ,  Kilbom LEE ,  Kyunghaeng LEE ,  Hyunsoo KO

IPC: H04B7/08 ,  H04W72/04 ,  H04B7/04

CPC classification number: H04B7/0802 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/0691 ,  H04L5/0048 ,  H04L5/0094 ,  H04W72/046

Abstract: A method for receiving a signal from a base station by a user equipment using beamforming based on a massive antenna array in a wireless communication system is disclosed. The method includes configuring a preferred antenna port set among a plurality of antenna ports included in the massive antenna array, measuring channel state information by receiving a reference signal corresponding to the preferred antenna port set and reporting the channel state information to the base station, and receiving a beam-formed signal from the base station using the preferred antenna port set based on the channel state information.

Abstract translation: 公开了一种基于无线通信系统中的大规模天线阵列的使用波束成形的用户设备从基站接收信号的方法。 该方法包括在包括在海量天线阵列中的多个天线端口之间配置优选天线端口集合，通过接收对应于优选天线端口组的参考信号并向基站报告信道状态信息来测量信道状态信息，以及 使用基于信道状态信息设置的优选天线端口从基站接收波束形成的信号。

公开(公告)号：US20160050006A1

公开(公告)日：2016-02-18

申请号：US14779925

申请日：2014-04-07

Applicant: LG ELECTRONICS INC.

Inventor： Hyunsoo KO ,  Jiwon KANG ,  Kilbom LEE ,  Jaehoon CHUNG

IPC: H04B7/06 ,  H04B7/04 ,  H04W72/04

CPC classification number: H04B7/0634 ,  H04B7/0478 ,  H04B7/0617 ,  H04B17/00 ,  H04B17/382 ,  H04W72/0406

Abstract: The present invention relates to a wireless communication system and, more specifically, to a method and an apparatus for reporting channel state information (CSI). Particularly, the method comprises the steps of: receiving a reference signal (RS) from a base station; and reporting, to the base station, the CSI generated by using the RS, wherein the CSI is measured on the basis of a specific CSI-RS set among a plurality of CSI-RS sets, beamforming weight vectors in a vertical domain which are set differently for each of horizontal domain antenna ports to which the same beamforming weight vectors in a vertical domain is applied.

Abstract translation: 本发明涉及一种无线通信系统，更具体地，涉及用于报告信道状态信息（CSI）的方法和装置。 特别地，该方法包括以下步骤：从基站接收参考信号（RS）; 并且向基站报告通过使用RS生成的CSI，其中，基于多个CSI-RS集合中的特定CSI-RS集合来测量CSI，其被设置在垂直域中的波束成形加权向量 对于应用垂直域中相同的波束成形加权向量的每个水平域天线端口，不同。

公开(公告)号：US20160050003A1

公开(公告)日：2016-02-18

申请号：US14781811

申请日：2014-04-02

Applicant: LG ELECTRONICS INC.

Inventor： Hyunsoo KO ,  Jinmin KIM ,  Jaehoon CHUNG

IPC: H04B7/06 ,  H04B7/04

CPC classification number: H04B7/0626 ,  H04B7/0417 ,  H04B7/0469 ,  H04B7/0478

Abstract: The present invention relates to a wireless communication system and, more specifically, to a method and an apparatus for reporting channel status information (CSI). Particularly, the method by which a terminal in the wireless communication system reports the CSI, comprises the steps of: receiving a reference signal from a base station; and reporting, to the base station, the CSI generated by using the reference signal, wherein the CSI includes channel information for a plurality of antenna ports mapped according to a first parameter, and the first parameter is a value related to vertical domain antenna ports indicated through upper layer signaling.

Abstract translation: 无线通信系统技术领域本发明涉及无线通信系统，更具体地，涉及用于报告信道状态信息（CSI）的方法和装置。 特别地，无线通信系统中的终端报告CSI的方法包括以下步骤：从基站接收参考信号; 并且向所述基站报告通过使用所述参考信号生成的所述CSI，其中所述CSI包括根据第一参数映射的多个天线端口的信道信息，并且所述第一参数是与所示的垂直域天线端口相关的值 通过上层信令。

公开(公告)号：US20160014661A1

公开(公告)日：2016-01-14

申请号：US14770772

申请日：2014-03-10

Applicant: LG ELECTRONICS INC.

Inventor： Hyeyoung CHOI ,  Jaehoon CHUNG ,  Eunjong LEE ,  Heejeong CHO ,  Genebeck HAHN

IPC: H04W36/16 ,  H04W52/02

CPC classification number: H04W36/16 ,  H04W52/0206 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146

Abstract: According to one embodiment of the present invention, a method for determining an energy-saving (ES) compensation cell in a wireless access system comprises: a step of transmitting an ES compensation candidate request message to confirm whether the ES compensation state can be changed from a first base station to a second base station; a step of receiving, from the second base station, an ES compensation candidate response message for indicating the switch to the ES compensation state; a step of receiving, from the second base station, an ES candidate cell indicator message including an ES state cell list for indicating third base stations to be additionally switched to the ES state; and a step of determining the ES compensation cell on the basis of the ES compensation candidate response message and the cell list.

Abstract translation: 根据本发明的一个实施例，一种用于确定无线接入系统中的节能（ES）补偿小区的方法包括：发送ES补偿候选请求消息以确认ES补偿状态是否可以从 第一基站到第二基站; 从所述第二基站接收用于指示切换到所述ES补偿状态的ES补偿候选响应消息的步骤; 从所述第二基站接收包括用于指示要另外切换到所述ES状态的第三基站的ES状态小区列表的ES候选小区指示符消息的步骤; 以及基于ES补偿候选响应消息和小区列表来确定ES补偿小区的步骤。

公开(公告)号：US20150382223A1

公开(公告)日：2015-12-31

申请号：US14767892

申请日：2014-03-11

Applicant: LG ELECTRONICS INC.

Inventor： Hyunsoo KO ,  Jiwon KANG ,  Jaehoon CHUNG

IPC: H04W24/10 ,  H04B7/06

CPC classification number: H04B7/0626 ,  H04B7/0456 ,  H04B7/0469 ,  H04B7/0617 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0665 ,  H04L5/0048 ,  H04W24/10 ,  H04W72/0413

Abstract: The present invention relates to a wireless communication system and, more specifically, to a method and device for reporting channel state information (CSI). The method by which a terminal in a wireless communication system reports CSI, according to one embodiment of the present invention, can comprise the steps of: receiving a reference signal from a base station; and reporting, to the base station, the CSI generated by using the reference signal. The CSI can include at least one first domain precoding matrix indicator (PMI) indicating a first precoding matrix for a first domain of a two-dimensional antenna structure and at least one second domain PMI indicating a second precoding matrix for a second domain of the two-dimensional antenna structure. A reporting period of the at least one first domain PMI can be shorter than a reporting period of the at least one second domain PMI.

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，涉及用于报告信道状态信息（CSI）的方法和设备。 根据本发明的一个实施例，无线通信系统中的终端报告CSI的方法可以包括以下步骤：从基站接收参考信号; 并向基站报告通过使用参考信号生成的CSI。 CSI可以包括指示用于二维天线结构的第一域的第一预编码矩阵的至少一个第一域预编码矩阵指示符（PMI）以及指示用于二维天线结构的第二域的第二预编码矩阵的至少一个第二域PMI 维天线结构。 所述至少一个第一域PMI的报告周期可以比所述至少一个第二域PMI的报告周期短。

公开(公告)号：US20150341152A1

公开(公告)日：2015-11-26

申请号：US14758787

申请日：2013-12-31

Applicant: LG ELECTRONICS INC.

Inventor： Jinmin KIM ,  Jaehoon CHUNG

IPC: H04L5/00 ,  H04B7/04 ,  H04W72/04 ,  H04W24/10

CPC classification number: H04L5/0048 ,  H04B7/0417 ,  H04L5/00 ,  H04W24/00 ,  H04W24/10 ,  H04W72/042 ,  H04W88/02

Abstract: The present invention relates to a wireless access system that supports massive MIMO, and provides a method for transceiving channel state information (CSI) for operating the massive MIMO and an apparatus for supporting said method. The method for transmitting CSI by a terminal in a wireless access system that supports massive multi-input multi-output (MIMO), according to one embodiment of the present invention, may comprise the steps of: receiving a signal including report period information; receiving downlink data including a reference signal; measuring first CSI using the reference signal; acquiring second CSI using the first CSI; and reporting the first CSI or the second CSI to a base station based on the report period information. According to the present invention, the first CSI may be information on a first antenna set including antennas for transmitting the reference signal, and the second CSI may be information on a second antenna set including antennas not transmitting the reference signal.

Abstract translation: 本发明涉及支持大量MIMO的无线接入系统，并且提供了一种用于收发用于操作大规模MIMO的信道状态信息（CSI）的方法以及用于支持所述方法的装置。 根据本发明的一个实施例，用于在支持大量多输入多输出（MIMO）的无线接入系统中的终端发送CSI的方法可以包括以下步骤：接收包括报告周期信息的信号; 接收包括参考信号的下行链路数据; 使用参考信号测量第一CSI; 使用第一CSI获取第二CSI; 以及基于所述报告周期信息向所述基站报告所述第一CSI或所述第二CSI。 根据本发明，第一CSI可以是包括用于发送参考信号的天线的第一天线组的信息，并且第二CSI可以是包括不发送参考信号的天线的第二天线组的信息。