公开(公告)号：US10069610B2

公开(公告)日：2018-09-04

申请号：US15231362

申请日：2016-08-08

Applicant: LG ELECTRONICS INC.

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

IPC: H04J13/00 ,  H04L27/26 ,  H04J11/00 ,  H04L5/00 ,  H04W28/18 ,  H04W48/16

CPC classification number: H04L5/0051 ,  H04J11/003 ,  H04J11/005 ,  H04J13/0074 ,  H04L5/0007 ,  H04L5/0012 ,  H04L5/0026 ,  H04L5/0037 ,  H04L5/0048 ,  H04L5/0082 ,  H04L5/0092 ,  H04L27/2613 ,  H04W28/18 ,  H04W48/16

Abstract: A method and a user equipment (UE) for generating a reference signal sequence in a wireless communication system are discussed. The method according to an embodiment includes receiving a cell-specific sequence hopping parameter from a base station. The cell-specific sequence hopping parameter is used to enable a sequence hopping for a plurality of UEs in a cell if a cell-specific group hopping parameter is used to disable a group hopping for the plurality of UEs in the cell. The method includes receiving a UE-specific sequence group hopping (SGH) parameter, specified to the UE, from the base station. The UE-specific SGH parameter is used to disable the sequence hopping, enabled by the cell-specific sequence hopping parameter. The method includes generating the reference signal sequence based on a base sequence number within a base sequence group. The base sequence number within the base sequence group is determined by the UE-specific SGH parameter.

公开(公告)号：US10038478B2

公开(公告)日：2018-07-31

申请号：US14983131

申请日：2015-12-29

Applicant: LG ELECTRONICS INC.

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

IPC: G08C15/00 ,  H04B7/0413 ,  H04B7/06 ,  H04L5/00 ,  H04L27/26 ,  H04L25/02 ,  H04L25/03

CPC classification number: H04B7/0413 ,  H04B7/0613 ,  H04B7/0632 ,  H04L5/0007 ,  H04L5/0026 ,  H04L5/0039 ,  H04L5/0048 ,  H04L5/0057 ,  H04L5/0073 ,  H04L5/0085 ,  H04L25/0226 ,  H04L27/2611 ,  H04L2025/03426 ,  H04L2025/03802

Abstract: A method for transmitting a reference signal in a multi-antenna system is provided. The method includes: selecting at least one orthogonal frequency division multiplexing (OFDM) symbol in a subframe containing a plurality of OFDM symbols; allocating a channel quality indication reference signal (CQI RS) capable of measuring a channel state for each of a plurality of antennas to the selected at least one OFDM symbol; and transmitting the CQI RS, wherein the CQI RS is allocated to an OFDM symbol which does not overlap with an OFDM symbol to which a common reference signal to be transmitted to all user equipments in a cell or a dedicated reference signal to be transmitted to a specific user equipment in the cell is allocated.

公开(公告)号：US09973309B2

公开(公告)日：2018-05-15

申请号：US15584914

申请日：2017-05-02

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/00 ,  H04J11/00 ,  H04W72/04

CPC classification number: H04L5/0007 ,  H04J11/00 ,  H04J2011/0096 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0073 ,  H04L5/0082 ,  H04L5/0091 ,  H04W72/042

Abstract: A base station does not transmit any reference signal (RS) for channel measurement in a subframe in which transmission of an RS collides with transmission of a synchronization signal or a broadcast signal or in a resource block including the synchronization signal or the broadcast signal in the subframe. A user equipment assumes that any RS for channel measurement is not transmitted in a subframe or in a resource block when transmission of an RS collides with transmission of a synchronization signal or a broadcast signal in the subframe or in the resource block.

公开(公告)号：US09967046B2

公开(公告)日：2018-05-08

申请号：US15389985

申请日：2016-12-23

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.

公开(公告)号：US09949242B2

公开(公告)日：2018-04-17

申请号：US15499465

申请日：2017-04-27

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 ,  H04L1/18

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：US09929840B2

公开(公告)日：2018-03-27

申请号：US14877734

申请日：2015-10-07

Applicant: LG ELECTRONICS INC.

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

IPC: H04L1/00 ,  H04L5/00 ,  H04B7/022 ,  H04W88/08 ,  H04B7/06

CPC classification number: H04L5/0048 ,  H04B7/022 ,  H04B7/0643 ,  H04B7/065 ,  H04L1/0026 ,  H04L1/0077 ,  H04W88/085

Abstract: A method of performing cooperative transmission in a multi-node system including a Base Station (BS) and a plurality of nodes controlled by the BS is provided. The method comprises: transmitting a first signal generated using a first cell identifier (ID) from the plurality of nodes; and transmitting a second signal generated using a second cell ID from at least one of the plurality of nodes, wherein the first cell ID is identical with a cell ID used by the BS, and the second cell ID is different from the first cell ID.

公开(公告)号：US20180026757A1

公开(公告)日：2018-01-25

申请号：US15644225

申请日：2017-07-07

Applicant: LG Electronics Inc.

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

IPC: H04L1/18 ,  H04W28/02 ,  H04L25/03 ,  H04B7/04 ,  H04L1/06 ,  H04W72/04 ,  H04L5/00 ,  H04L1/00

CPC classification number: H04L1/1893 ,  H04B7/04 ,  H04B7/0413 ,  H04L1/0041 ,  H04L1/06 ,  H04L1/0625 ,  H04L1/0631 ,  H04L5/0026 ,  H04L25/03343 ,  H04L25/03929 ,  H04L2025/03426 ,  H04W28/0268 ,  H04W72/046

Abstract: A method of data transmission includes determining the number of layers, generating mapping symbols by mapping modulation symbols for a first codeword and modulation symbols for a second codeword to each layer, and transmitting the mapping symbols through a plurality of antennas. At least one of the first codeword and the second codeword is mapped to at least 3 layers and the number of layers is larger than 3.

公开(公告)号：US20170310444A1

公开(公告)日：2017-10-26

申请号：US15649253

申请日：2017-07-13

Applicant: LG ELECTRONICS INC.

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

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

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：US09668253B2

公开(公告)日：2017-05-30

申请号：US14672365

申请日：2015-03-30

Applicant: LG ELECTRONICS INC.

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

IPC: H04W4/00 ,  H04W72/04 ,  H04L5/00 ,  H04J11/00

CPC classification number: H04L5/0007 ,  H04J11/00 ,  H04J2011/0096 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0073 ,  H04L5/0082 ,  H04L5/0091 ,  H04W72/042

Abstract: A base station does not transmit any reference signal (RS) for channel measurement in a subframe in which transmission of an RS collides with transmission of a synchronization signal or a broadcast signal or in a resource block including the synchronization signal or the broadcast signal in the subframe. A user equipment assumes that any RS for channel measurement is not transmitted in a subframe or in a resource block when transmission of an RS collides with transmission of a synchronization signal or a broadcast signal in the subframe or in the resource block.

公开(公告)号：US09654271B2

公开(公告)日：2017-05-16

申请号：US15163533

申请日：2016-05-24

Applicant: LG ELECTRONICS INC.

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

IPC: H04J1/00 ,  H04J1/16 ,  H04L5/00 ,  H04L1/18 ,  H04L1/00 ,  H04L1/16 ,  H04W72/04

CPC classification number: H04L5/0055 ,  H04L1/0026 ,  H04L1/0057 ,  H04L1/0059 ,  H04L1/0073 ,  H04L1/1671 ,  H04L1/1819 ,  H04L1/1854 ,  H04L1/1893 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0016 ,  H04L5/0053 ,  H04L27/2634 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0473

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 a physical downlink control channel (PDCCH); receiving a physical downlink shared channel (PDSCH) indicated by the PDCCH; and transmitting ACK/NACK for the PDSCH via a physical uplink control channel (PUCCH). A PUCCH format for transmitting ACK/NACK is selected by taking the number of aggregated carriers into account.