公开(公告)号：US10231243B2

公开(公告)日：2019-03-12

申请号：US15524555

申请日：2015-11-05

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo Choi ,  Hangyu Cho ,  Wookbong Lee ,  Jeongki Kim

IPC: H04W72/04 ,  H04L5/00 ,  H04W72/12 ,  H04W84/12

Abstract: Disclosed are a method and a device for allocating a resource unit on the basis of a container in a wireless LAN. The method for allocating a resource unit in a wireless LAN comprises the steps of: generating, by an AP, a PPDU to be transmitted to a plurality of STAs; and transmitting, by the AP, the PPDU to the plurality of STAs through at least one container allocated on the entire frequency band, wherein the PPDU includes MU/SU transmission indication information and resource allocation information for each container, the MU/SU transmission indication information includes information on whether an SU-based transmission or an MU-based transmission is carried out on the entire bandwidth, and the resource allocation information for each container can include information on the number of STAs allocated to each of the at least one container.

公开(公告)号：US10224987B2

公开(公告)日：2019-03-05

申请号：US15566207

申请日：2016-04-14

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo Choi ,  Hangyu Cho ,  Wookbong Lee

IPC: H04K1/10 ,  H04L27/28 ,  H04B7/0452 ,  H04L5/00 ,  H04L27/32 ,  H04L27/26 ,  H04W84/12

Abstract: The present specification suggests a method and an apparatus regarding first and/or second signal fields used in a wireless LAN system. When multiple resource units are used for a specific band, a bit map field may be configured first by a resource unit having a first size, and for the remaining bands, allocation information may be configured by a resource unit having a second size. Also, a bit map field which indicates whether MU-MIMO technique is applied to the specific band or not can be further included. For example, the resource unit having the first size may comprise 242-RU and the resource unit having the second size may comprise 26-RU. A specific resource unit to which the MU-MIMO technique is applied may be 106-RU or more. When discontinuous channel bonding is an issue, additional changes can be made to the first/second signal fields of the present specification.

公开(公告)号：US10212731B2

公开(公告)日：2019-02-19

申请号：US15509149

申请日：2014-12-31

Applicant: LG ELECTRONICS INC.

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

IPC: H04W74/00 ,  H04W74/08

Abstract: Provided is a method and apparatus for protecting a TXOP in a wireless communication system. The method for protecting a TXOP may comprise the steps of: receiving a trigger frame containing information on a first interval for an exchange of multiple clear-to-send (CTS) frames from a transmission station (STA) by a reception STA; and transmitting CTS frames to the transmission STA in the first interval by the reception STA.

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：US10111270B2

公开(公告)日：2018-10-23

申请号：US15165969

申请日：2016-05-26

Applicant: LG ELECTRONICS INC.

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

IPC: H04W76/14 ,  H04W4/00 ,  H04W72/04 ,  H04W76/02 ,  H04W4/70 ,  H04L5/00 ,  H04W84/12

Abstract: Provided is a method for receiving an uplink PPDU by using a plurality of RUs through a specific band in a wireless LAN system in which a plurality of bands is supported. Transmission of the uplink PPDU is disclosed by a trigger frame and the trigger frame indicates information on an identifier and a frequency resource of each station. In the trigger frame, an index field indicating the RU may be configured with the same size regardless of a bandwidth. To this end, a plurality of index groups is used instead of a method indicating a bitmap field or a start point/offset. A first index group of the index field may be used to indicate a first RU and a second index group of the index field may be used to indicate a second RU.

公开(公告)号：US10085262B2

公开(公告)日：2018-09-25

申请号：US15504007

申请日：2015-08-05

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo Choi ,  Hangyu Cho ,  Wookbong Lee

IPC: H04W72/04 ,  H04W84/12

CPC classification number: H04W72/0453 ,  H04L5/0037 ,  H04W72/042 ,  H04W72/08 ,  H04W84/12

Abstract: Disclosed is a method and apparatus for allocating a wireless resource in order to prevent interference in a wireless LAN. A method for allocating a wireless resource in a wireless LAN may comprise the steps of: allocating, by an AP, a plurality of wireless resources for a plurality of STAs included in a BSS, in the entire bandwidth, respectively; and transmitting, by the AP, a PPDU to the plurality of STAs through the plurality of wireless resources, respectively, wherein each of the plurality of wireless resources is a combination of a plurality of wireless units defined in different sizes on a frequency axis, and each of the plurality of wireless resources can be determined in consideration of the size of the bandwidth of at least one STA supporting a bandwidth smaller than the size of the entire bandwidth from among the plurality of STAs.

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：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.