公开(公告)号：US10038536B2

公开(公告)日：2018-07-31

申请号：US14837986

申请日：2015-08-27

Applicant: LG ELECTRONICS INC.

Inventor： Bong Hoe Kim ,  Byeong Woo Kang ,  Dae Won Lee ,  Yu Jin Noh ,  Ki Jun Kim ,  Dong Wook Roh

IPC: H04B7/04 ,  H04L5/00 ,  H04B7/0413 ,  H04B7/06 ,  H04L1/06 ,  H04W72/04 ,  H04L27/26 ,  H04J13/00 ,  H04J13/10 ,  H04W8/26

CPC classification number: H04L5/0051 ,  H04B7/0413 ,  H04B7/0684 ,  H04J13/0003 ,  H04J13/0025 ,  H04J13/10 ,  H04L1/0675 ,  H04L5/0023 ,  H04L5/0028 ,  H04L5/0035 ,  H04L5/0037 ,  H04L5/0092 ,  H04L27/2613 ,  H04W8/26 ,  H04W72/042

Abstract: The present application discloses a method in which a base station transmits a reference signal sequence in a wireless communication system. In detail, the method comprises the steps of: generating a pseudo-random sequence using a first m-sequence and a second m-sequence; generating the reference signal sequence using the pseudo-random sequence; and transmitting the reference signal to a mobile station via antenna ports different from one another. The second m-sequence has an initial value containing parameters for discriminating reference signal sequences among users.

公开(公告)号：US09906281B2

公开(公告)日：2018-02-27

申请号：US14484079

申请日：2014-09-11

Applicant: LG ELECTRONICS INC.

Inventor： Yong Ho Seok ,  Bong Hoe Kim ,  Dae Won Lee

IPC: H04B7/04 ,  H04L25/02 ,  H04B7/0452 ,  H04B7/06 ,  H04B7/0456 ,  H04W84/12

CPC classification number: H04B7/0452 ,  H04B7/0456 ,  H04B7/0617 ,  H04B7/0632 ,  H04B7/0663 ,  H04L25/0224 ,  H04W84/12

Abstract: A Multi-User-Multiple Input Multiple Output (MU-MIMO) transmission method performed by an Access Point (AP) in a Wireless Local Area Network (WLAN) system is provided. The method includes transmitting an MU-MIMO initiation message to a destination Station (STA) which is a target of a MU-MIMO transmission, the MU-MIMO initiation message informing that MU-MIMO transmission will be initiated, receiving a sounding frame transmitted by the destination STA as a response to the MU-MIMO initiation message and performing MU-MIMO transmission on data by beamforming based on channel information obtained from the sounding frame. The sounding frame includes precoded and virtualized channel information between the AP and the STA. A dimension of the virtualized channel information is lower than a dimension of channel information between the AP and the STA.

公开(公告)号：US09900138B2

公开(公告)日：2018-02-20

申请号：US15660641

申请日：2017-07-26

Applicant: LG ELECTRONICS INC.

Inventor： Dae Won Lee ,  Young Woo Yun ,  Ki Jun Kim ,  Suk Hyon Yoon ,  Joon Kui Ahn ,  Dong Youn Seo ,  Eun Sun Kim

IPC: H04L5/00 ,  H04W72/12 ,  H04W72/04 ,  H04L12/801 ,  H04W88/02

CPC classification number: H04L5/0053 ,  H04L5/0007 ,  H04L5/0039 ,  H04L5/0041 ,  H04L5/0044 ,  H04L5/0058 ,  H04L5/0091 ,  H04L47/10 ,  H04W72/04 ,  H04W72/0406 ,  H04W72/042 ,  H04W72/121 ,  H04W72/1289 ,  H04W88/02

Abstract: According to one embodiment, a user equipment for use in a mobile communication system is configured to: receive control information including a first field and a second field via a control channel, the first field indicating one of N (N>2) resource block group (RBG) sets and the second field including a bitmap, wherein each bit of the bitmap is used to indicate whether a corresponding resource block (RB) in the indicated one of the N RBG sets is allocated; interpret the first field and the second field for resource allocation in the control information; and receive data using the control information. An RBG set n (0

公开(公告)号：US09900128B2

公开(公告)日：2018-02-20

申请号：US14869489

申请日：2015-09-29

Applicant: LG ELECTRONICS INC.

Inventor： Hak Seong Kim ,  Joon Kui Ahn ,  Dae Won Lee

IPC: G06F11/00 ,  H04L1/18 ,  H04L1/00 ,  H04L5/00 ,  H04W72/04

CPC classification number: H04L1/1861 ,  H04L1/0004 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/18 ,  H04L1/1812 ,  H04L1/1854 ,  H04L1/1887 ,  H04L5/0057 ,  H04W72/0413 ,  H04W72/042

Abstract: A method of supporting Hybrid Automatic Repeat Request (HARQ) includes receiving an initial uplink grant on a downlink channel, transmitting uplink data on an uplink channel using the initial uplink grant, receiving a request for retransmission of the uplink data, determining at least one transmission parameter of a channel quality indicator (CQI) from the initial uplink grant, multiplexing retransmission data of the uplink data with the CQI, and transmitting the multiplexed data on the uplink channel. Amount of resources for transmission of the CQI is determined based on the at least one transmission parameter.

公开(公告)号：US09871634B2

公开(公告)日：2018-01-16

申请号：US15097150

申请日：2016-04-12

Applicant: LG Electronics Inc.

Inventor： In Kwon Seo ,  Dae Won Lee ,  Ki Jun Kim ,  Joon Kui Ahn

IPC: H04H20/71 ,  H04W4/00 ,  H04L5/00 ,  H03M13/35 ,  H03M13/00 ,  H04L1/00 ,  H04L1/16 ,  H04L1/18 ,  H04W72/04 ,  H03M13/09 ,  H03M13/23 ,  H03M13/29 ,  H04L27/26

CPC classification number: H04L5/005 ,  H03M13/09 ,  H03M13/23 ,  H03M13/29 ,  H03M13/353 ,  H03M13/6306 ,  H03M13/635 ,  H03M13/6362 ,  H03M13/6525 ,  H03M13/6527 ,  H03M13/653 ,  H03M13/6544 ,  H03M13/6558 ,  H04L1/0026 ,  H04L1/0041 ,  H04L1/0071 ,  H04L1/0072 ,  H04L1/1664 ,  H04L1/1812 ,  H04L1/1858 ,  H04L1/1861 ,  H04L5/0055 ,  H04L5/0057 ,  H04L27/2601 ,  H04W72/0413

Abstract: A method and apparatus for transmitting an uplink signal in a wireless communication system are discussed. The method includes multiplexing control information in all layers with a plurality of data blocks of the uplink signal; and transmitting the uplink signal to a base station, wherein the number of modulation symbols per layer for the control information is determined using a reciprocal of a sum of spectral efficiencies for respective data blocks of the plurality of data blocks, and a spectral efficiency for a data block is obtained based on a ratio of a size of the data block to the number of resource elements (REs) for an initial physical uplink shared channel (PUSCH) transmission of the data block.

公开(公告)号：US09807759B2

公开(公告)日：2017-10-31

申请号：US15372136

申请日：2016-12-07

Applicant: LG ELECTRONICS INC.

Inventor： Dong Wook Roh ,  Byeong Woo Kang ,  Dae Won Lee ,  Yong Ho Seok

IPC: H04W72/04 ,  H04L1/00 ,  H04W84/12

CPC classification number: H04W72/042 ,  H04B7/0413 ,  H04B7/0452 ,  H04B7/0617 ,  H04B7/0697 ,  H04L1/0025 ,  H04L1/0041 ,  H04L2001/0093 ,  H04W52/42 ,  H04W84/12

Abstract: A method of transmitting a data frame by a transmitter in a WLAN system is provided. The method includes generating a data block including at least one data units respectively transmitted through at least one or more spatial streams to at least one receiver, transmitting first control information to the at least one receiver, transmitting second control information to each receiver, and transmitting the data block to the at least one receiver. The first control information includes a length indicator for the data block, a MIMO indicator indicating whether the data block is for SU-MIMO or MU-MIMO, and a spatial stream indication field including information about the number of the spatial streams. The second control information includes a FEC coding field indicating an encoding scheme applied to the data unit and an MCS field indicating an MCS applied to the data unit.

公开(公告)号：US09801145B2

公开(公告)日：2017-10-24

申请号：US15410543

申请日：2017-01-19

Applicant: LG Electronics Inc.

Inventor： Dong Youn Seo ,  Ki Jun Kim ,  Joon Kui Ahn ,  Min Gyu Kim ,  Jung Hoon Lee ,  Dae Won Lee ,  Suck Chel Yang

IPC: G01R31/08 ,  H04L5/14 ,  H04B7/00 ,  H04J3/00 ,  H04W52/32 ,  H04W72/04 ,  H04L5/00 ,  H04W52/14 ,  H04W52/34

CPC classification number: H04W52/325 ,  H04L1/0001 ,  H04L5/003 ,  H04L5/0048 ,  H04L5/0066 ,  H04L47/10 ,  H04L47/127 ,  H04W36/005 ,  H04W40/10 ,  H04W52/02 ,  H04W52/146 ,  H04W52/34 ,  H04W52/367 ,  H04W72/0406 ,  H04W72/0413 ,  H04W72/10 ,  H04W88/10 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146

Abstract: A method for controlling transmission powers by a communication apparatus in a wireless communication system supporting a plurality of component carriers. When a sounding reference symbol (SRS) transmission overlaps with a physical uplink shared channel (PUSCH) transmission in a time domain, the communication apparatus checks whether a total of a PUSCH transmission power for the PUSCH transmission on a first component carrier and a SRS transmission power for the SRS transmission on a second component carrier exceeds a maximum transmission power configured for the communication apparatus, and drops the SRS transmission if the total of the PUSCH transmission power and the SRS transmission power exceeds the maximum transmission power configured for the communication apparatus.

公开(公告)号：US09794915B2

公开(公告)日：2017-10-17

申请号：US14588857

申请日：2015-01-02

Applicant: LG ELECTRONICS INC.

Inventor： Hak Seong Kim ,  Bong Hoe Kim ,  Ki Jun Kim ,  Suk Hyon Yoon ,  In Jae Jung ,  Dae Won Lee ,  Joon Kui Ahn ,  Dong Youn Seo

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

CPC classification number: H04W72/0413 ,  H04L5/0055 ,  H04L5/0057 ,  H04W72/085

Abstract: A method for adaptively allocating resources of an uplink control channel according to a system situation is disclosed. If a base station (BS) recognizes the system situation, establishes control information for resource allocation, and transmits the control information to a mobile station (MS), the mobile station (MS) allocates resources for transmitting uplink control information using a specific block or a specific resource distribution method according to the corresponding control information. The system situation may be changed according to the number of users contained in the BS's coverage or the usage of a multi-antenna. The variation of the system situation is actively reflected so that the uplink channel resources can be effectively used.

公开(公告)号：US09793966B2

公开(公告)日：2017-10-17

申请号：US14510458

申请日：2014-10-09

Applicant: LG ELECTRONICS INC.

Inventor： Yong Ho Seok ,  Yu Jin Noh ,  Bong Hoe Kim ,  Dae Won Lee

IPC: H04B7/0452 ,  H04B7/04 ,  H04B7/06 ,  H04L5/00 ,  H04W84/12

CPC classification number: H04B7/0452 ,  H04B7/0421 ,  H04B7/0621 ,  H04L5/0053 ,  H04W84/12

Abstract: A link adaptation method performed by a station (STA) in a wireless local area network (LAN) system supporting multi-user multiple-input multiple-output (MU-MIMO) is provided. The method includes: receiving a modulation and coding scheme (MCS) request, a steered sounding physical layer convergence procedure (PLOP) protocol data unit (PPDU) which is beam-formed to the STA, and a MIMO indicator including MU-MIMO-related information from an access point (AP); and transmitting feedback information including an MCS acquired from the steered sounding PPDU and the MU-MIMO-related information to the AP in response to the MCS request.

公开(公告)号：US09722749B2

公开(公告)日：2017-08-01

申请号：US15048569

申请日：2016-02-19

Applicant: LG Electronics Inc.

Inventor： In Kwon Seo ,  Dae Won Lee ,  Ki Jun Kim

IPC: H04W4/00 ,  H04L5/00 ,  H04L1/00 ,  H04W72/04 ,  H04B7/0413 ,  H04B7/06 ,  H04W88/02 ,  H04W88/08

CPC classification number: H04L5/0048 ,  H04B7/0413 ,  H04B7/0626 ,  H04L1/0026 ,  H04L5/0007 ,  H04L5/0051 ,  H04L5/0057 ,  H04W72/0413 ,  H04W88/02 ,  H04W88/08

Abstract: A method for transmitting channel quality information for a downlink channel; a user equipment (UE) therefore; a method for receiving channel quality information for a downlink channel; and a base station therefore are discussed. The method for transmitting channel quality information for a downlink channel includes according to one embodiment receiving, by a user equipment (UE), configuration information on periodic channel state information (CSI) reporting by higher layer signaling; determining, by the UE, a channel quality information index at least based on a number of a specific resource element; and transmitting the determined channel quality information index to a base station. The number of the specific resource element is determined based on a UE-specific reference signal overhead. A resource element allocated for a Channel Status Information-Reference Signal (CSI-RS) is regarded as the specific resource element regardless of transmitting the CSI-RS.