公开(公告)号：US10320601B2

公开(公告)日：2019-06-11

申请号：US15506651

申请日：2015-08-24

Applicant: LG ELECTRONICS INC.

Inventor： Wookbong Lee ,  Jinsoo Choi ,  Dongguk Lim ,  Jinyoung Chun ,  Hangyu Cho

IPC: H04L27/26 ,  H04L29/08 ,  H04W28/22 ,  H04W72/12 ,  H04B7/0452 ,  H04B7/06

Abstract: Disclosed herein is a station (STA) device of a wireless LAN (WLAN) system. The STA device includes a radio frequency (RF) unit sending and receiving a radio signal and a processor controlling the RF unit. The processor may generate a physical protocol data unit (PPDU) including a physical preamble and a data field and send the PPDU using the RF unit.

公开(公告)号：US10298304B2

公开(公告)日：2019-05-21

申请号：US15259519

申请日：2016-09-08

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk Lim ,  Jinyoung Chun ,  Jinsoo Choi ,  Hangyu Cho ,  Jinmin Kim ,  Eunsung Park

IPC: H04W4/00 ,  H04B7/06 ,  H04L25/02 ,  H04W84/12

Abstract: When an AP (access point) performs sounding to transmit a frame to one or more STAs using a beamforming scheme in a wireless LAN (WLAN) system, the AP receives a beamforming feedback, which is generated based on measurement of a specific signal transmitted by the AP in a manner that the one or more STAs group a prescribed number of tones according to a tone grouping element (Ng). In this case, the Ng is configured by a multiple of 4.

公开(公告)号：US10271377B2

公开(公告)日：2019-04-23

申请号：US15925663

申请日：2018-03-19

Applicant: LG ELECTRONICS INC.

Inventor： Kiseon Ryu ,  Suhwook Kim ,  Jinyoung Chun ,  Jeongki Kim ,  Giwon Park ,  Hangyu Cho

IPC: H04W84/12 ,  H04L12/801 ,  H04W28/02 ,  H04W72/04 ,  H04W74/00 ,  H04W74/08 ,  H04W88/10

Abstract: A method and an apparatus for triggering uplink data in a wireless LAN are disclosed. A method for receiving uplink data in a wireless LAN may comprise: a step in which an access point (AP) transmits a trigger frame for random connection; and a step in which the AP receives at least one buffer status report frame from at least one STA on a random connection transmission opportunity (TXOP) which is set on the basis of the trigger frame for random connection, wherein the random connection TXOP is allocated for a channel access attempt for transmitting the buffer status report frame of each of a plurality of non-specific STAs, and each of the at least one STA may be an STA which succeeds in the channel access among the plurality of non-specific STAs.

公开(公告)号：US10149279B2

公开(公告)日：2018-12-04

申请号：US15315650

申请日：2015-06-01

Applicant: LG ELECTRONICS INC.

Inventor： Wookbong Lee ,  Kiseon Ryu ,  Jinyoung Chun ,  Hangyu Cho ,  Jinsoo Choi ,  Dongguk Lim

IPC: H04W72/00 ,  H04W84/12 ,  H04L5/00 ,  H04W56/00 ,  H04W72/04 ,  H04W74/08 ,  H04L27/26

Abstract: A method by which an STA transmits a multi-user (MU) frame in a wireless communication system, according to one embodiment of the present invention comprises the steps of: receiving, from an access point (AP), a second downlink frame including time synchronization information and frequency synchronization information; adjusting a time synchronization and a frequency synchronization by using the time synchronization information and the frequency synchronization information; receiving a third downlink frame including MU frame allocation information; and transmitting the MU frame according to the MU allocation information, wherein the time synchronization information is determined by comparing, to a reference value, a difference of measurement values relating to frames exchanged prior to the reception of the second downlink frame, and the reference value is a common value among STAs related to a multi-user transmission.

公开(公告)号：US10128925B2

公开(公告)日：2018-11-13

申请号：US15505561

申请日：2015-08-24

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung Chun ,  Kiseon Ryu ,  Wookbong Lee ,  Jinsoo Choi ,  Hangyu Cho ,  Suhwook Kim

IPC: H04B7/02 ,  H04B7/06 ,  H04B7/0452 ,  H04L29/08 ,  H04W74/00 ,  H04L1/06

Abstract: In the present invention, disclosed is a method for uplink multi-user transmission in a wireless communication system and an apparatus therefor. Specifically, a method for performing, by a station (STA), uplink (UL) multi-user (MU) transmission in a wireless communication system comprises the steps of: receiving, from an access point (AP), a trigger frame including information for UL MU transmission; and transmitting an UL MU PPDU on the basis of the information for UL MU transmission, wherein the trigger frame is a medium access control (MAC) frame, a MAC header of the trigger frame includes a type field and a subtype field, and the type of the trigger frame may be indicated by the type field and the subtype field.

公开(公告)号：US10075269B2

公开(公告)日：2018-09-11

申请号：US15510212

申请日：2015-07-27

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung Chun ,  Kiseon Ryu ,  Wookbong Lee ,  Jinsoo Cho ,  Hangyu Cho

IPC: H04L5/00 ,  H04B7/0452 ,  H04L27/26 ,  H04W84/12

CPC classification number: H04L5/0044 ,  H04B7/0452 ,  H04L1/0025 ,  H04L1/0075 ,  H04L5/0007 ,  H04L5/0032 ,  H04L5/0037 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0053 ,  H04L27/26 ,  H04L27/2613 ,  H04L27/2628 ,  H04W84/12

Abstract: According to an embodiment of the present invention, a data transmission method for a station (STA) device in a wireless LAN (WLAN) system includes the steps of: generating a physical protocol data unit (PPDU) that includes a physical preamble and a data field; and transmitting the PPDU. Therein: the whole transmission band of the PPDU is made up of a plurality of resource units in a frequency region; each of the plurality of resource units is configured from a preset number of tones; resource units, from among the plurality of resource units, that have the same logical index are allocated to the same STA; and the resource units that have the same logical index may be discontinuously located in the frequency region.

公开(公告)号：US10051687B2

公开(公告)日：2018-08-14

申请号：US15515123

申请日：2015-04-08

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk Lim ,  Wookbong Lee ,  Jinyoung Chun ,  Jinsoo Choi ,  Hangyu Cho ,  Eunsung Park

IPC: H04B7/00 ,  H04B1/00 ,  H04B1/04 ,  H04W88/06 ,  H04L5/00 ,  H04W84/04 ,  H04L27/26 ,  H04W48/10 ,  H04W48/12 ,  H04W74/00 ,  H04W84/12

Abstract: The present document relates to a wireless communication system and, more particularly, to a method for transmitting a frame in a high-density wireless LAN system, and a station device for performing the method. To this end, a station for transmitting a frame is comprised of a radio frame for a second type station comprising a frame portion for a first type station and a frame portion for the second type station, wherein the frame portion for the first type station comprises a first OFDM symbol for transmitting a signaling field (L-SIG) for the first type station, and the frame portion for the second type station comprises one or more second OFDM symbols for transmitting a signaling field (HE-SIG) for the second type station. Additionally, the radio frame for the second type station further comprises one or more third OFDM symbols for transmitting the L-SIG and the HE-SIG repeatedly.

公开(公告)号：US10034282B2

公开(公告)日：2018-07-24

申请号：US15364168

申请日：2016-11-29

Applicant: LG ELECTRONICS INC.

Inventor： Kitae Kim ,  Jinyoung Chun ,  Sunam Kim ,  Jiwon Kang ,  Binchul Ihm ,  Sungho Park

IPC: H04W4/00 ,  H04W72/04 ,  H04L5/00 ,  H04W72/12

Abstract: In a wireless communication system, when a terminal receives control information from a downlink subframe, which is divided into a Physical Downlink Control Channel (PDCCH) region and a Physical Downlink Shared Channel (PDSCH) region, in a wireless communication system, the receiving of the control information includes: receiving, from a base station, first CFI information indicating the number of Orthogonal Frequency Division Multiplexing (OFDM) symbols available for Physical Downlink Control Channel (PDCCH) transmission; receiving, from the base station, second CFI information indicating start OFDM symbol information available for Physical Downlink Shared Channel (PDSCH) transmission corresponding to an enhanced Physical Downlink Control Channel (E-PDCCH); and receiving the PDSCH from the base station on the basis of the first CFI information or the second CFI information. The PDCCH is placed in the PDCCH region of the downlink subframe, and the E-PDCCH is placed in the PDSCH region of the downlink subframe.

公开(公告)号：US10021722B2

公开(公告)日：2018-07-10

申请号：US15317089

申请日：2015-04-27

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung Chun ,  Wookbong Lee ,  Jinsoo Choi ,  Dongguk Lim ,  Hangyu Cho

IPC: H04W4/00 ,  H04W74/08 ,  H04W72/12 ,  H04W72/04 ,  H04J13/18 ,  H04J4/00 ,  H04W84/12

CPC classification number: H04W74/0825 ,  H04J4/00 ,  H04J13/18 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/1284 ,  H04W74/0816 ,  H04W84/12

Abstract: Disclosed are a method and a device for receiving a frame in a wireless LAN. A method for receiving a frame in a wireless LAN comprises the steps of: an AP transmitting an RTS frame to a plurality of STAs, wherein the RTS frame comprises information for NAV setting of an STA other than the plurality of STAs; the AP receiving from each of the plurality of STAs, as a response to the RTS frame, a CTS PPDU and an additional CTS PPDU on overlapped time resources; and the AP transmitting an uplink transmission indication frame to the plurality of STAs, wherein the uplink transmission indication frame triggers transmission of an uplink frame of each of the plurality of STAs.

公开(公告)号：US09942943B2

公开(公告)日：2018-04-10

申请号：US15505607

申请日：2015-08-21

Applicant: LG ELECTRONICS INC.

Inventor： Kiseon Ryu ,  Suhwook Kim ,  Jinyoung Chun ,  Jeongki Kim ,  Giwon Park ,  Hangyu Cho

IPC: H04W84/12 ,  H04W88/10 ,  H04W74/00 ,  H04W74/08 ,  H04W72/04 ,  H04W28/02 ,  H04L12/801

CPC classification number: H04W84/12 ,  H04L47/10 ,  H04L47/12 ,  H04W28/021 ,  H04W28/0278 ,  H04W72/0413 ,  H04W74/004 ,  H04W74/085 ,  H04W74/0866 ,  H04W88/10

Abstract: A method and an apparatus for triggering uplink data in a wireless LAN are disclosed. A method for receiving uplink data in a wireless LAN may comprise: a step in which an access point (AP) transmits a trigger frame for random connection; and a step in which the AP receives at least one buffer status report frame from at least one STA on a random connection transmission opportunity (TXOP) which is set on the basis of the trigger frame for random connection, wherein the random connection TXOP is allocated for a channel access attempt for transmitting the buffer status report frame of each of a plurality of non-specific STAs, and each of the at least one STA may be an STA which succeeds in the channel access among the plurality of non-specific STAs.