公开(公告)号：US09900084B2

公开(公告)日：2018-02-20

申请号：US14365483

申请日：2012-12-18

Applicant: LG ELECTRONICS INC.

Inventor： Joon Kui Ahn ,  Dong Youn Seo ,  Suck Chel Yang

IPC: H04J3/00 ,  H04B7/26 ,  H04W56/00

CPC classification number: H04B7/2656 ,  H04W56/0005

Abstract: Provided are a communication method and a wireless device in a time division duplex (TDD)-based wireless communication system. A wireless device receives a setting for a first special (S) subframe of a first cell to which a first timing advance (TA) is applied and a setting for a second S subframe of a second cell to which a second TA is applied. When a downlink (DL) reception and an uplink (UL) transmission are duplicated, the wireless device varies at least one of the settings among the first S subframe and second S subframe.

公开(公告)号：US09893801B2

公开(公告)日：2018-02-13

申请号：US15087582

申请日：2016-03-31

Applicant: LG ELECTRONICS INC.

Inventor： Suck Chel Yang ,  Min Gyu Kim ,  Joon Kui Ahn ,  Dong Youn Seo

IPC: H04L1/18 ,  H04L1/16 ,  H04L5/00 ,  H04L5/14 ,  H04W72/04 ,  H04W72/14 ,  H04B7/26 ,  H04L27/26

CPC classification number: H04B7/2643 ,  H04L1/1607 ,  H04L1/1621 ,  H04L1/1664 ,  H04L1/1685 ,  H04L1/1812 ,  H04L1/1854 ,  H04L5/001 ,  H04L5/0016 ,  H04L5/0055 ,  H04L5/0094 ,  H04L5/1469 ,  H04L27/2627 ,  H04W72/042 ,  H04W72/14

Abstract: A method is provided for transmitting an acknowledgement/negative-acknowledgement (ACK/NACK) in a wireless communication system based on Time Division Duplex (TDD) in which M downlink subframe(s) are associated with an uplink subframe, where M is equal to or greater than one (1). A user equipment, configured with a plurality of serving cells, receives at least one downlink transport block in the M downlink subframe(s), and determines an ACK/NACK response for the at least one downlink transport block by using one of a plurality of pre-defined mapping rules. Each of the plurality of pre-defined mapping rules is set to define a mapping relation between M ACK/NACK state(s) for each of the plurality of serving cells and the ACK/NACK response based on M. The user equipment transmits the ACK/NACK response.

公开(公告)号：US09887819B2

公开(公告)日：2018-02-06

申请号：US15666081

申请日：2017-08-01

Applicant: LG ELECTRONICS INC.

Inventor： Joon Kui Ahn ,  Suck Chel Yang ,  Yun Jung Yi ,  Dong Youn Seo

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

CPC classification number: H04L5/0048 ,  H04L5/001 ,  H04L5/0044 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0094 ,  H04L27/2601 ,  H04W72/0446

Abstract: A user equipment (UE) is provided for transmitting an uplink signal in a wireless communication system The UE sets up a sounding reference signal (SRS) configuration for a first serving cell that includes information for an SRS transmission, and determines an SRS subframe in which an SRS and a physical uplink shared channel (PUSCH) for the first serving cell are simultaneously triggered according to the SRS configuration. If a SRS transmission on the SRS subframe for the first serving cell is overlapped with an uplink transmission for a second serving cell, the UE transmits the SRS in the SRS subframe if a total uplink transmission power does not exceeds the UE's maximum transmit power on the overlapped portion. If the SRS is triggered by the SRS configuration and timing advance groups are configured to the UE, the UE transmits the PUSCH on the SRS subframe for the first serving cell.

公开(公告)号：US09877319B2

公开(公告)日：2018-01-23

申请号：US14280338

申请日：2014-05-16

Applicant: LG ELECTRONICS INC.

Inventor： Joon Kui Ahn ,  Bong Hoe Kim ,  Young Woo Yun ,  Ki Jun Kim ,  Jung Hoon Lee ,  Dae Won Lee ,  Dong Youn Seo ,  Dong Wook Roh ,  Suk Hyon Yoon

IPC: H04W72/04 ,  H04L1/16 ,  H04L5/00 ,  H04L27/26 ,  H04W72/02 ,  H04L1/18

CPC classification number: H04W72/0446 ,  H04L1/16 ,  H04L1/1861 ,  H04L5/0053 ,  H04L27/2613 ,  H04W72/02

Abstract: A method of acquiring information on a resource region for transmitting PHICH and a method of receiving PDCCH using the same are disclosed. The resource region for transmitting the PHICH can be specified by first information corresponding to the per-subframe PHICH number and second information corresponding to a duration of the PHICH within the subframe. The first information can be specified into a form resulting from multiplying a predetermined basic number by a specific constant. And, the specific constant can be transmitted via PBCH. Moreover, the second information can be acquired from the PBCH as well.

公开(公告)号：US09872309B2

公开(公告)日：2018-01-16

申请号：US15438016

申请日：2017-02-21

Applicant: LG ELECTRONICS INC.

Inventor： Joon Kui Ahn ,  Suck Chel Yang ,  Han Byul Seo ,  Dong Youn Seo

IPC: H04W80/04 ,  H04W72/12 ,  H04W72/04

CPC classification number: H04W72/1273 ,  H04B7/024 ,  H04L5/0007 ,  H04L5/003 ,  H04L5/0035 ,  H04L27/2601 ,  H04W72/0446

Abstract: A communication method in a wireless communication system, the method includes receiving a first control channel including first scheduling information on a first physical downlink shared channel (PDSCH); receiving a second control channel including second scheduling information on a second PDSCH; determining whether the first PDSCH and the second PDSCH are scheduled to be overlapped on at least one subframe; and determining which one of the first PDSCH and the second PDSCH is to be received on the at least one overlapped subframe.

公开(公告)号：US09813215B2

公开(公告)日：2017-11-07

申请号：US14855806

申请日：2015-09-16

Applicant: LG Electronics Inc.

Inventor： Dong Youn Seo ,  Min Gyu Kim ,  Suck Chel Yang ,  Joon Kui Ahn

IPC: H04L5/00 ,  H04L1/16 ,  H04L5/14 ,  H04L1/18 ,  H04L5/26

CPC classification number: H04L5/0055 ,  H04L1/1607 ,  H04L1/1854 ,  H04L5/14 ,  H04L5/26

Abstract: Provided are a method and a device for transmitting an acknowledgement/not-acknowledgement (ACK/NACK) of a terminal which is set with a plurality of serving cells. The method comprises the steps of: receiving data in a subframe n of a second serving cell; and transmitting an ACK/NACK signal for the data in a subframe n+kSCC(n) of a first serving cell connected to the subframe n of the second serving cell, wherein the first serving cell is a primary cell for the terminal to execute an initial connection establishment procedure or a connection reestablishment procedure, and uses a frequency division duplex (FDD) wireless frame, the second serving cell is a secondary cell allocated to the terminal in addition to the primary cell, and uses a time division duplex (TDD) wireless frame, and the kSCC(n) is a previously determined value.

公开(公告)号：US09807697B2

公开(公告)日：2017-10-31

申请号：US15208044

申请日：2016-07-12

Applicant: LG ELECTRONICS INC.

Inventor： Joon Kui Ahn ,  Min Gyu Kim ,  Dae Won Lee ,  Suck Chel Yang ,  Bong Hoe Kim ,  Dong Youn Seo

IPC: H04W4/00 ,  H04W52/14 ,  H04B7/06 ,  H04W52/32 ,  H04W52/42 ,  H04W72/04 ,  H04L5/00 ,  H04W76/04

CPC classification number: H04W52/146 ,  H04B7/0689 ,  H04L5/0055 ,  H04L5/0057 ,  H04W52/325 ,  H04W52/42 ,  H04W72/0413 ,  H04W72/0473 ,  H04W76/27

Abstract: A method is provided for transmitting a physical uplink control channel (PUCCH) in a wireless communication system supporting multiple antennas. The method is performed by a user equipment (UE) having a first antenna port and a second antenna port, and configured for using a multiple-antenna transmit mode for transmission using multiple antennas and a single-antenna transmit mode for transmission using a single antenna. The UE determines that the multiple-antenna transmit mode is to be used for transmitting the PUCCH, and determines a transmit power offset value to be added to a transmit power of the PUCCH depending on a PUCCH format to be used for transmitting the PUCCH using the first and second antenna ports. The UE transmits the PUCCH by using a first PUCCH resource through the first antenna port, and transmits the PUCCH by using a second PUCCH resource through the second antenna port.

公开(公告)号：US09716575B2

公开(公告)日：2017-07-25

申请号：US15094573

申请日：2016-04-08

Applicant: LG ELECTRONICS INC.

Inventor： Joon Kui Ahn ,  Suck Chel Yang ,  Yun Jung Yi ,  Dong Youn Seo

IPC: H04W84/12 ,  H04L5/00 ,  H04W52/14 ,  H04W52/32 ,  H04W52/36 ,  H04W72/04 ,  H04W56/00 ,  H04B17/318 ,  H04L27/26 ,  H04W52/16 ,  H04W74/08 ,  H04W4/00

CPC classification number: H04L5/0048 ,  H04B17/318 ,  H04L5/0037 ,  H04L5/005 ,  H04L5/0051 ,  H04L5/0053 ,  H04L27/2601 ,  H04W4/00 ,  H04W52/146 ,  H04W52/16 ,  H04W52/32 ,  H04W52/325 ,  H04W52/367 ,  H04W56/0005 ,  H04W56/0045 ,  H04W72/0413 ,  H04W72/0446 ,  H04W74/0833

Abstract: A method for uplink transmission in a wireless communication system, and a user equipment (UE) therefore are discussed. The method according to an embodiment includes determining a transmission power of a first uplink signal; determining a transmission power of a second uplink signal; preparing to transmit the first uplink signal toward a first cell belonging to a first timing advance group (TAG); preparing to transmit the second uplink signal toward a second cell belonging to a second TAG; and if the first uplink signal toward the first cell belonging to the first TAG at an nth subframe and the second uplink signal of the second cell belonging to the second TAG at an (n+1)th subframe are overlapped, determining whether to adjust a total transmission power or drop the first uplink signal at the nth subframe.

公开(公告)号：US09705642B2

公开(公告)日：2017-07-11

申请号：US15200304

申请日：2016-07-01

Applicant: LG ELECTRONICS INC.

Inventor： Dong Youn Seo ,  Min Gyu Kim ,  Han Byul Seo ,  Joon Kui Ahn ,  Suck Chel Yang

IPC: H04L1/18 ,  H04L5/00 ,  H04L5/14 ,  H04W72/14 ,  H04W72/12 ,  H04W88/08

CPC classification number: H04L1/1812 ,  H04L1/1822 ,  H04L1/1864 ,  H04L1/1887 ,  H04L1/1893 ,  H04L5/001 ,  H04L5/0055 ,  H04L5/14 ,  H04W72/1289 ,  H04W72/14 ,  H04W88/08

Abstract: A method for a base station (BS) to perform a hybrid automatic repeat request (HARQ). The BS transmits an uplink (UL) grant for a first subframe of a second serving cell through a first serving cell. The BS receives UL data based on the UL grant in the first subframe, transmits an acknowledgement/non-acknowledgement (ACK/NACK) for the UL data through a physical HARQ indicator channel (PHICH) in subframe i of the first serving cell and receives non-adaptively retransmitted UL data in a second subframe of the second serving cell if a NACK for the UL data has been transmitted through the PHICH in the subframe i of the first serving cell. The first serving cell and the second serving cell use different UL-DL configurations.

公开(公告)号：US09680589B2

公开(公告)日：2017-06-13

申请号：US14991754

申请日：2016-01-08

Applicant: LG ELECTRONICS INC.

Inventor： Joon Kui Ahn ,  Suck Chel Yang ,  Min Gyu Kim ,  Dong Youn Seo

IPC: H04J3/16 ,  H04B7/26 ,  H04L1/18 ,  H04L5/00 ,  H04L1/16 ,  H04W72/04

CPC classification number: H04L5/0055 ,  H04B7/2656 ,  H04J3/1694 ,  H04L1/1621 ,  H04L1/1635 ,  H04L1/1861 ,  H04L5/001 ,  H04L5/0053 ,  H04L5/14 ,  H04W72/042 ,  H04W72/0446

Abstract: Provided is a method of transmitting ACK/NACK in a TDD-based wireless communication system. The method includes: receiving M downlink subframes associated with an uplink subframe n in each of two serving cells; determining four candidate resources based on the M downlink subframes received in each of the two serving cells; and transmitting an ACK/NACK response for the M downlink subframes by using one resource selected from the four candidate resources in the uplink subframe n, wherein the two serving cells includes a first serving cell and a second serving cell, and wherein among the four candidate resources, a first resource and a second resource are associated with a PDSCH or a SPS release PDCCH for releasing semi-persistent scheduling received in the first serving cell, and a third resource and a fourth resources are associated with a PDSCH received in the second serving cell.