公开(公告)号：US09906341B2

公开(公告)日：2018-02-27

申请号：US15167097

申请日：2016-05-27

Applicant: LG ELECTRONICS INC.

Inventor： Ja Ho Koo ,  Seung Hee Han ,  Hyun Soo Ko ,  Jae Hoon Chung ,  Bin Chul Ihm ,  Moon Il Lee

IPC: H04L5/00 ,  H04W72/04 ,  H04L27/26 ,  H04L25/02

CPC classification number: H04L5/0035 ,  H04L5/0048 ,  H04L25/0226 ,  H04L27/2613 ,  H04W72/042

Abstract: A method of generating reference signals by a base station in a wireless communication system is disclosed. The method including a sequence of a first reference signal using a cell identifier of the base station, transmitting, to a first user equipment (UE), a message including mode information indicating a first mode for a coordinated multi-point (CoMP) operation and a predetermined identifier being different from the cell identifier of the base station and generating a sequence of a second reference signal for the first UE using the predetermined identifier instead of the cell identifier of the base station.

公开(公告)号：US09871633B2

公开(公告)日：2018-01-16

申请号：US15336003

申请日：2016-10-27

Applicant: LG ELECTRONICS INC.

Inventor： Jae Hoon Chung ,  Hyun Soo Ko ,  Seung Hee Han ,  Moon Il Lee

IPC: H04L5/00 ,  H04L25/02 ,  H04W72/04 ,  H04J11/00 ,  H04L27/26

CPC classification number: H04L5/0048 ,  H04J11/0069 ,  H04L5/0007 ,  H04L5/0016 ,  H04L5/0023 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0091 ,  H04L25/0226 ,  H04L27/2601 ,  H04L27/2602 ,  H04L27/2607 ,  H04L27/2613 ,  H04L27/2662 ,  H04W72/042 ,  H04W72/0446

Abstract: The present invention relates to a method for transmitting a data demodulation reference signal in a radio mobile communication system. The method comprises: a step for generating a sub-frame including the data demodulation reference signal, and a step for transmitting the generated sub-frame. The 1st and 2nd demodulation reference signal pattern groups include plural demodulation signal patterns orthogonal to each other, and are differentiated from each other with regard to time-frequency resources. In the data demodulation reference signal, demodulation reference signal patterns which are respectively orthogonal to each other M (M≦N) and N−M times are respectively included in the 1st and 2nd demodulation reference signal pattern groups if the rank is N.

公开(公告)号：US09794924B2

公开(公告)日：2017-10-17

申请号：US14852807

申请日：2015-09-14

Applicant: LG ELECTRONICS INC.

Inventor： Moon Il Lee ,  Wook Bong Lee ,  Jae Hoon Chung ,  Hyun Soo Ko ,  Bin Chul Ihm

IPC: H04B7/0413 ,  H04W72/04 ,  H04J11/00 ,  H04L5/00 ,  H04L25/03 ,  H04B7/0452 ,  H04W52/14 ,  H04W52/32 ,  H04W88/08

CPC classification number: H04W72/042 ,  H04B7/0413 ,  H04B7/0452 ,  H04B7/0689 ,  H04J11/0026 ,  H04L5/0023 ,  H04L5/0048 ,  H04L25/03343 ,  H04L27/261 ,  H04W52/143 ,  H04W52/325 ,  H04W88/08

Abstract: A technique for receiving and transmitting downlink reference signals is disclosed. When transmitting downlink data demodulation reference signals (DMRS) (or reference signals for downlink data demodulation) by using two or more layers, the DMRS of each layer may be multiplexed by using a code division multiplexing method and then transmitted. The DMRS for each of the two or more layers may be used for one user equipment or for two or more user equipments. And, downlink control signals for transmitting and receiving such DMRS may be configured to have the same format regardless of a single-user mode (or SU-MIMO mode) or a multi-user mode (or MU-MIMO mode), thereby being used.

公开(公告)号：US09788312B2

公开(公告)日：2017-10-10

申请号：US14798916

申请日：2015-07-14

Applicant: LG ELECTRONICS INC.

Inventor： Hyun Soo Ko ,  Moon Il Lee ,  Ja Ho Koo ,  Jae Hoon Chung ,  Bin Chul Ihm

IPC: H04W72/04 ,  H04B7/04 ,  H04B7/0413 ,  H04W88/02 ,  H04W88/08

CPC classification number: H04W72/042 ,  H04B7/04 ,  H04B7/0413 ,  H04W88/02 ,  H04W88/08

Abstract: A method and apparatus for transmitting a downlink signal in a multiple input multiple output (MIMO) wireless communication system is disclosed. A method for receiving a downlink signal from a base station to a user equipment in a multiple input multiple output (MIMO) system, which supports dual layer transmission based on first and second antenna ports, comprises receiving downlink control information (DCI) through a downlink control channel; and receiving downlink data through a downlink data channel, the downlink data including one or more of a first transport block and a second transport block, wherein the downlink control information includes a new data indicator (NDI) for each of the first and second transport blocks, and if the first transport block is disabled and the second transport block is enabled, the new data indicator for the first transport block indicates an antenna port through which the second transport block is received.

公开(公告)号：US09729290B2

公开(公告)日：2017-08-08

申请号：US14599097

申请日：2015-01-16

Applicant: LG ELECTRONICS INC.

Inventor： Min Seok Noh ,  Jae Hoon Chung ,  Yeong Hyeon Kwon ,  Hyun Soo Ko ,  Seung Hee Han ,  Moon Il Lee

IPC: H04L5/00 ,  H04B7/06 ,  H04J13/16 ,  H04L25/02 ,  H04L27/26 ,  H04W72/04 ,  H04J13/00

CPC classification number: H04L5/0048 ,  H04B7/0613 ,  H04B7/0684 ,  H04J13/0074 ,  H04J13/16 ,  H04L5/0026 ,  H04L5/0051 ,  H04L25/022 ,  H04L25/0226 ,  H04L27/261 ,  H04L27/2613 ,  H04W72/042

Abstract: Provided is a method for transmitting, by a user equipment (UE), a demodulation reference signal (DMRS) for a physical uplink shared channel (PUSCH) in a wireless communication system. A terminal receives a cyclic shift field, which indicates a first value and a second value, through a physical downlink control channel (PDCCH) from a base station, generates a first DMRS sequence and a second DMRS sequence, which are associated with a first layer and a second layer respectively, by using a first cyclic shift and a second cyclic shift, respectively, which are determined based on the first value and the second value respectively, and transmits the first DMRS sequence and the second DMRS sequence to the base station. Furthermore, the first value and the second value are separated by a maximum value corresponding to a total number of possible cyclic shifts.

公开(公告)号：US09729288B2

公开(公告)日：2017-08-08

申请号：US13939094

申请日：2013-07-10

Applicant: LG ELECTRONICS INC.

Inventor： Jae Hoon Chung ,  So Yeon Kim ,  Yeong Hyeon Kwon ,  Hyun Soo Ko ,  Seung Hee Han ,  Moon Il Lee

IPC: H04W4/00 ,  H04L5/00 ,  H04W72/04 ,  H04L25/02 ,  H04L27/26 ,  H04L1/06 ,  H04L1/18 ,  H04W74/00

CPC classification number: H04L5/0048 ,  H04L1/06 ,  H04L1/1812 ,  H04L1/1861 ,  H04L5/0026 ,  H04L5/0051 ,  H04L5/0055 ,  H04L25/0226 ,  H04L27/2613 ,  H04W72/042 ,  H04W74/004

Abstract: The present invention relates to a method for generating an uplink reference signal in a system supporting plural uplink-access transmission modes. The method comprises: a step for transmitting the reference signal configuration information about the configuration of a reference signal from a base station to a user device through an uplink grant PDCCH (Physical Downlink Control Channel), and a step for receiving from the user device a sub-frame including the reference signal that is generated based on the reference signal configuration information. The reference signal configuration information is prepared for plural uplink access transmission modes and includes a cyclic shift value for the sequence of the reference signal. The reference signal is supposed to be transmitted to an uplink, and the user device is set up to be operated in the uplink-access transmission mode that corresponding to the reference signal configuration information.

公开(公告)号：US09699046B2

公开(公告)日：2017-07-04

申请号：US14154998

申请日：2014-01-14

Applicant: LG ELECTRONICS INC.

Inventor： Jae Hoon Chung ,  Hyun Soo Ko ,  Moon Il Lee ,  Bin Chul Ihm

IPC: G01R31/08 ,  G06F11/00 ,  G08C15/00 ,  H04J1/16 ,  H04J3/14 ,  H04L1/00 ,  H04L12/26 ,  H04L5/00 ,  H04B17/345 ,  H04B17/373

CPC classification number: H04L43/08 ,  H04B17/345 ,  H04B17/373 ,  H04L5/0048

Abstract: A method of measuring interference to perform efficient data communication is disclosed. A method of measuring interference of neighboring cells comprises allocating one or more first resource elements, to which pilot signals are allocated, to predetermined symbol regions included in a first resource block; allocating one or more second resource elements for measuring interference of the neighboring cells to a first symbol region of the predetermined symbol regions; and measuring interference of the neighboring cells using the one or more second resource elements.

公开(公告)号：US09674824B2

公开(公告)日：2017-06-06

申请号：US15009034

申请日：2016-01-28

Applicant: LG ELECTRONICS INC.

Inventor： Seung Hee Han ,  Sung Ho Moon ,  Hyun Soo Ko ,  Jae Hoon Chung ,  Moon Il Lee ,  Yeong Hyeon Kwon

IPC: H04W72/04 ,  H04L5/00 ,  H04L1/00 ,  H04L1/16 ,  H04L1/18 ,  H04J13/16

CPC classification number: H04W72/0413 ,  H04J13/16 ,  H04J2013/165 ,  H04L1/0031 ,  H04L1/0073 ,  H04L1/1607 ,  H04L1/1671 ,  H04L1/1861 ,  H04L5/0007 ,  H04L5/0026 ,  H04L5/003 ,  H04L5/0055 ,  H04L5/0094 ,  H04W72/042 ,  H04W72/0453

Abstract: According to one embodiment, a method for transmitting, by a user equipment (UE), information in a wireless communication system includes: determining a first information sequence based on a first cyclically shifted base sequence and a first orthogonal sequence by using a first physical uplink control channel (PUCCH) resource for a first antenna, wherein the first PUCCH resource is obtained based on a channel control element (CCE) index related to a physical downlink control channel (PDCCH) and a parameter configured by a higher layer; determining a second information sequence based on a second cyclically shifted base sequence and a second orthogonal sequence by using a second PUCCH resource for a second antenna, wherein the second PUCCH resource is obtained by adding an offset to the first PUCCH resource; transmitting the first information sequence via the first antenna; and transmitting the second information sequence via the second antenna.

公开(公告)号：US09559799B2

公开(公告)日：2017-01-31

申请号：US15018741

申请日：2016-02-08

Applicant: LG ELECTRONICS INC.

Inventor： Moon Il Lee ,  Jae Hoon Chung ,  Seung Hee Han ,  Min Seok Noh

IPC: H04J13/00 ,  H04J13/12 ,  H04L27/26 ,  H04W72/04 ,  H04L5/00

CPC classification number: H04J13/0048 ,  H04J13/0003 ,  H04J13/12 ,  H04L5/0007 ,  H04L5/0016 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0092 ,  H04L27/2627 ,  H04W72/042 ,  H04W72/0466

Abstract: A method and apparatus for multiplexing reference signals in a predetermined number of Code Division Multiplexing (CDM) groups to balance power across Orthogonal Frequency Division Multiplexing (OFDM) symbols are disclosed. In a wireless communication system, orthogonal sequences used for spreading the reference signals are allocated such that the order of orthogonal sequences allocated to a subcarrier of one CDM group has a predetermined offset with respect to the order of orthogonal sequences allocated to a subcarrier of another CDM group, adjacent to the subcarrier of the one CDM group.

Abstract translation: 公开了一种在预定数量的码分多路复用（CDM）组中复用参考信号以平衡正交频分复用（OFDM）符号的功率的方法和装置。 在无线通信系统中，分配用于扩展参考信号的正交序列，使得分配给一个CDM组的子载波的正交序列的顺序相对于分配给另一个CDM的副载波的正交序列的顺序具有预定的偏移量 组，与一个CDM组的子载波相邻。

公开(公告)号：US09554374B2

公开(公告)日：2017-01-24

申请号：US14459048

申请日：2014-08-13

Applicant: LG ELECTRONICS INC

Inventor： Seung Hee Han ,  Jae Hoon Chung ,  Sung Ho Moon ,  Moon Il Lee ,  Hyun Woo Lee

IPC: H04W4/00 ,  H04W72/04 ,  H04L1/00 ,  H04L1/16 ,  H04L1/18 ,  H04B7/26 ,  H04L5/00

CPC classification number: H04W72/0406 ,  H04B7/2621 ,  H04L1/0027 ,  H04L1/1607 ,  H04L1/1854 ,  H04L1/1861 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0053 ,  H04L5/0055 ,  H04L5/0091 ,  H04W72/0413

Abstract: The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for transmitting acknowledgement/negative ACK (ACK/NACK) in a wireless communication system which supports carrier aggregation, and to an apparatus for the method. A method in which a terminal transmits ACK/NACK in a wireless communication system that supports carrier aggregation comprises the following steps: receiving one or more physical downlink shared channels (PDSCHs); and transmitting ACK/NACK for said one or more PDSCHs via a physical uplink control channel (PUCCH). A PUCCH format for transmitting ACK/NACK is selected by taking the type of the carrier in which said one or more PDSCHs are received into account.

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，本发明涉及一种用于在支持载波聚合的无线通信系统中发送确认/否定ACK（ACK / NACK）的方法以及用于该方法的装置。 一种终端在支持载波聚合的无线通信系统中发送ACK / NACK的方法包括以下步骤：接收一个或多个物理下行链路共享信道（PDSCH）; 以及经由物理上行链路控制信道（PUCCH）发送用于所述一个或多个PDSCH的ACK / NACK。 通过考虑其中接收到所述一个或多个PDSCH的载波的类型来选择用于发送ACK / NACK的PUCCH格式。