公开(公告)号：US10090981B2

公开(公告)日：2018-10-02

申请号：US15637494

申请日：2017-06-29

Applicant: LG ELECTRONICS INC.

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

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

Abstract: A method is provided for transmitting a demodulation reference signal (DMRS) by a user equipment (UE) in a wireless communication system. The UE receives a cyclic shift field in an uplink scheduling assignment from a base station, allocates a first cyclic shift value of a first DMRS for a first layer and a second cyclic shift value of a second DMRS for a second layer, based on the cyclic shift field, and transmits the first DMRS and the second DMRS to the base station.

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：US10063360B2

公开(公告)日：2018-08-28

申请号：US15658979

申请日：2017-07-25

Applicant: LG ELECTRONICS INC.

Inventor： Yeong Hyeon Kwon ,  Jae Hoon Chung ,  Seung Hee Han ,  So Yeon Kim

IPC: H04L1/16 ,  H04L1/18 ,  H04W72/04 ,  H04L5/00 ,  H04W72/12 ,  H04L1/00

CPC classification number: H04L5/0055 ,  H04L1/0003 ,  H04L1/1614 ,  H04L1/1692 ,  H04L1/1854 ,  H04L1/1858 ,  H04L1/1861 ,  H04L5/0007 ,  H04L5/0053 ,  H04W72/042 ,  H04W72/1278

Abstract: A method is provided for generating Acknowledgement/Negative Acknowledgement (ACK/NACK) information by a user equipment (UE) in a wireless communication system supporting carrier aggregation. The UE receives, from a base station (BS), a plurality of codewords through a plurality of downlink carriers. Each of the plurality of downlink carriers support one or more codewords according to a transmission mode. The transmission mode is independently configured per each of the plurality of downlink carriers. The UE determines a total number of ACK/NACK bits, and generates a sequence of the ACK/NACK bits according to the total number of the ACK/NACK bits. The UE determines the total number of ACK/NACK bits based on a total number of the plurality of downlink carriers and a type of each transmission mode independently configured per each of the plurality of downlink carriers.

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：US09942863B2

公开(公告)日：2018-04-10

申请号：US15287307

申请日：2016-10-06

Applicant: LG ELECTRONICS INC.

Inventor： Seung Hee Han ,  Min Seok Noh ,  Yeong Hyeon Kwon

IPC: H04W4/00 ,  H04W56/00 ,  H04L5/00 ,  H04J11/00 ,  H04J13/16 ,  H04W48/16 ,  H04J3/06 ,  H04J13/00 ,  H04W88/08

CPC classification number: H04W56/001 ,  H04J3/06 ,  H04J3/0605 ,  H04J3/0611 ,  H04J11/0069 ,  H04J13/0055 ,  H04J13/16 ,  H04L5/0003 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/005 ,  H04W48/16 ,  H04W88/08

Abstract: A method for transmitting a signal for cell searching in a mobile communication system having a multi-cell environment includes transmitting the signal to one or more receiving party devices within a cell, wherein the signal is used for a synchronization of the one or more receiving party devices within the cell, the signal is defined by a combination of a first code sequence derived from a first index and a second code sequence derived from a second index, and an identity of the cell is used for defining the combination of the first code sequence and the second code sequence.

公开(公告)号：US09924500B2

公开(公告)日：2018-03-20

申请号：US15267291

申请日：2016-09-16

Applicant: LG ELECTRONICS INC.

Inventor： Yeong Hyeon Kwon ,  So Yeon Kim ,  Sung Ho Moon ,  Jae Hoon Chung ,  Seung Hee Han

IPC: H04W4/00 ,  H04W72/04 ,  H04L1/00 ,  H04L1/16 ,  H04L5/00 ,  H04L1/18 ,  H04W28/04

CPC classification number: H04W72/0413 ,  H04L1/0029 ,  H04L1/1607 ,  H04L1/1861 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0053 ,  H04L5/0055 ,  H04W28/04

Abstract: A method is provided for transmitting control information from a terminal in a wireless communication system. Physical downlink shared channels (PDSCHs) are received on a primary component carrier and PDSCHs are received on a secondary component carrier. The primary component carrier and the secondary component carrier are configured for the terminal. A first acknowledgement (ACK)/negative acknowledgement (NACK) feedback is transmitted for the received PDSCHs on a first physical uplink control channel (PUCCH) resource corresponding to a first antenna port and a second ACK/NACK feedback is transmitted for the received PDSCHs on a second PUCCH resource corresponding to a second antenna port. The first antenna port and the second antenna port are configured for the terminal. The first ACK/NACK feedback and the second ACK/NACK feedback are identical.

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.