公开(公告)号：US10278208B2

公开(公告)日：2019-04-30

申请号：US15540992

申请日：2015-12-30

Applicant: LG ELECTRONICS INC.

Inventor： Hyeyoung Choi ,  Kiseon Ryu ,  Jeongki Kim ,  Hangyu Cho ,  Suhwook Kim

IPC: H04W74/00 ,  H04W74/08 ,  H04W84/12

Abstract: One embodiment of the present invention relates to a method by which a station (STA) performs uplink transmission in a wireless communication system, the method for performing uplink transmission comprising the steps of: receiving a trigger frame from an AP; and performing uplink transmission as a response to the trigger frame, wherein, when a network allocation vector (NAV) of the STA receiving the trigger frame is idle and clear channel assessment (CCA) result is idle, the uplink transmission is performed.

公开(公告)号：US10251199B2

公开(公告)日：2019-04-02

申请号：US15470667

申请日：2017-03-27

Applicant: LG ELECTRONICS INC.

Inventor： Suhwook Kim ,  Kiseon Ryu ,  Jeongki Kim ,  Hangyu Cho ,  Hyunhee Park

IPC: H04W74/08 ,  H04W72/04 ,  H04W84/12 ,  H04W74/00

Abstract: According to an embodiment of the present specification, a method of transmitting a frame in a wireless local area network (WLAN) includes: receiving, by a user station (STA), a multi user-request to send (MU-RTS) frame from an access point (AP) to protect transmission for multi-users, wherein the MU-RTS frame includes common information commonly allocated to the multi-users, user-specific information individually allocated to the multi-users, and a control indicator indicating a first operation mode using a first channel and a second channel contiguous to the first channel and a second operation mode using the first channel and a third channel non-contiguous to the first channel; and transmitting, by the user STA, a clear to send (CTS) frame to the AP according to the control indicator in response to the MU-RTS frame.

公开(公告)号：US10251085B2

公开(公告)日：2019-04-02

申请号：US15534154

申请日：2015-08-07

Applicant: LG ELECTRONICS INC.

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

IPC: H04W28/04 ,  H04W28/06 ,  H04L1/00 ,  H04L29/06

Abstract: A method and device for transmitting a frame including error check bits for a header in a wireless LAN are disclosed. The method for transmitting a frame in a wireless LAN can comprise the steps of: generating, by an STA, a frame to be transmitted to an AP; and transmitting, by the STA, the frame to the AP, wherein the frame is an A-MPDU, the A-MPDU includes an A-MPDU header subframe and an A-MPDU subframe, the A-MPDU header subframe includes a first MPDU, the A-MPDU subframe includes a second MPDU, the first MPDU, as an MPDU, includes a first MAC header, expect for a MAC body, and the second MPDU, as an MPDU, can include the MAC body and a second MAC header.

公开(公告)号：US10201012B2

公开(公告)日：2019-02-05

申请号：US15302470

申请日：2015-04-09

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki Kim ,  Kiseon Ryu ,  Jinsoo Choi ,  Giwon Park ,  Suhwook Kim ,  Hangyu Cho

IPC: H04W74/08 ,  H04W76/38 ,  H04W28/04 ,  H04W84/12 ,  H04B7/0452 ,  H04L5/00 ,  H04W72/04

Abstract: The present document relates to a wireless communication system and, more particularly, to a method for performing retransmission in a wireless LAN system to which transmission opportunity (TXOP) sharing is applied, and a device therefor. To this end, a station transmits an initial transmission frame including primary access category (AC) information and secondary access category (AC) information; and when there is no response to the secondary AC information of the initial transmission frame, reconfigures a back-off timer value for the secondary AC information and retransmits the secondary AC information according to the reconfigured back-off timer value.

公开(公告)号：US10200175B2

公开(公告)日：2019-02-05

申请号：US15523275

申请日：2015-11-02

Applicant: LG ELECTRONICS INC.

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

IPC: H04W4/00 ,  H04L5/00 ,  H04L27/26 ,  H04W84/12

Abstract: A method for transmitting data from a station (STA) device in a wireless LAN (WLAN) system, according to one embodiment of the present invention, comprises the steps of: generating a physical protocol data unit (PPDU) including a physical preamble and a data field; and transmitting the PPDU, wherein when the data field is transmitted by using a 106-tone resource unit including first to fourth pilot tones, the positions of the first to the fourth pilot tones may be identical to the positions of four pilot tones from among eight pilot tones included in four 26-tone resource units, which are present at a position corresponding to the 106-tone resource unit, or identical to the positions of four pilot tones from among eight pilot tones included in two 52-tone resource units, which are present at a position corresponding to the 106-tone resource unit.

公开(公告)号：US10165596B2

公开(公告)日：2018-12-25

申请号：US15117392

申请日：2015-01-02

Applicant: LG ELECTRONICS INC.

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

IPC: H04W74/08 ,  H04W52/58 ,  H04L12/26 ,  H04W40/00 ,  H04W52/54 ,  H04W84/12

Abstract: Disclosed is a method and an apparatus for transmitting a frame in a wireless local area network. A method for transmitting a frame in a wireless local area network may comprise the steps of: an STA, operating on the basis of TPC, transmitting a TPC configuration request frame to an AP, the TPC configuration request frame containing information for a TPC STA communication resource requested by the STA; the STA receiving, from the AP, a TPC configuration response frame as a response to the TPC configuration request frame, the TPC configuration response frame containing information for allocating requested TPC STA communication resource; and the STA transmitting the frame to the AP by means of the requested TPC STA communication resource.

公开(公告)号：US10117270B2

公开(公告)日：2018-10-30

申请号：US15303194

申请日：2015-04-30

Applicant: LG ELECTRONICS INC.

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

IPC: H04W74/08 ,  H04W84/12 ,  H04B17/318 ,  H04W24/02 ,  H04L29/08

Abstract: The present document relates to a method for determining whether a corresponding medium (for example, a channel) is reusable so as to improve a space reuse rate in a wireless communication system, particularly, a wireless LAN system, and an apparatus for the same. To this end, a station receives a wireless LAN signal through a specific wireless medium, compares the received signal intensity of the wireless LAN signal with a CCA level selected from between a first CCA level and a second CCA level lower than the first CCA level according to the type of the received wireless LAN signal, determines that the corresponding wireless medium is usable if the received signal intensity is lower than the selected CCA level, and can use the wireless medium in a signal transmission.

公开(公告)号：US10085263B2

公开(公告)日：2018-09-25

申请号：US15524037

申请日：2015-11-24

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo Choi ,  Hangyu Cho ,  Wookbong Lee

IPC: H04J3/24 ,  H04W72/04 ,  H04W84/12

CPC classification number: H04W72/0453 ,  H04L5/00 ,  H04L5/0053 ,  H04W84/12

Abstract: Disclosed are a method and a device for allocating resource units using leftover tones in a wireless LAN. The method for allocating resource units using leftover tones in a wireless LAN may comprise the steps of: an AP generating PPDUs to be transmitted to a plurality of STAs; and the AP transmitting the PPDUs to the plurality of STAs on all frequency bands, wherein the PPDUs are transmitted from each of a plurality of resource unit sets respectively allocated to each of the plurality of STAs, wherein each of the plurality of resource unit sets includes a first resource unit set and a second resource unit set, wherein the first resource unit set includes at least one resource unit, the second resource unit set includes one tone design resource unit, and wherein the tone design resource unit may include at least one other resource unit and at least one additional tone unit.

公开(公告)号：US10069544B2

公开(公告)日：2018-09-04

申请号：US15048481

申请日：2016-02-19

Applicant: LG ELECTRONICS INC.

Inventor： Sungho Park ,  Kyujin Park ,  Jiwoong Jang ,  Hangyu Cho ,  Jiwon Kang ,  Dongcheol Kim ,  Dongguk Lim

IPC: H04K1/10 ,  H04B7/0417 ,  H04B7/06 ,  H04L27/26 ,  H04W24/10 ,  H04W4/02 ,  H04L1/00

Abstract: A method and apparatus for transmitting a signal from a base station to a first user equipment (UE) in a multiple-input multiple-output (MIMO) wireless communication system. Information on a movement speed of a second UE is acquired from the second UE. Channel information is determined based on the information on the movement speed. The channel information is previously measured by the first UE. A transmission and reception scheme is determined based on the determined channel information. At least one of the determined channel information or the determined transmission and reception scheme is transmitted to the second UE.

公开(公告)号：US10057862B2

公开(公告)日：2018-08-21

申请号：US15203611

申请日：2016-07-06

Applicant: LG ELECTRONICS INC.

Inventor： Dongcheol Kim ,  Hangyu Cho ,  Yeonghyeon Kwon ,  Jaehoon Chung

IPC: H04W4/00 ,  H04W52/36 ,  H04L5/00 ,  H04W72/04 ,  H04W76/19 ,  H04L25/03 ,  H04W88/02

CPC classification number: H04W52/365 ,  H04L5/00 ,  H04L5/0058 ,  H04L5/0094 ,  H04L2025/03802 ,  H04W72/0413 ,  H04W72/0473 ,  H04W76/19 ,  H04W88/02

Abstract: An apparatus and method for transmitting a power headroom report in a communication system supporting multi-carriers are disclosed, by which a user equipment is enabled to transmit the power headroom report. According to the present invention, a user equipment calculates a power headroom for each of at least one activated serving cell using a maximum transmission power of the user equipment for each of at least one activated serving cell and transmits the power headroom report including the power headroom for each of the at least one activated serving cell and the maximum transmission power of the user equipment for each of the at least one activated serving cell to a base station. In this case, the power headroom includes an information on power status of the user equipment for each of the at least one activated serving cell.