公开(公告)号：US10448367B2

公开(公告)日：2019-10-15

申请号：US15508819

申请日：2015-09-04

Applicant: LG ELECTRONICS INC.

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

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

Abstract: The present document is for flexibly resource allocation in a wireless LAN system. To this end, an STA prepares resource allocation information in which data is to be transmitted to a plurality of STAs by using an orthogonal frequency divisional multiple access (OFDMA) scheme or a multiple user MIMO (MU-MIMO) scheme, and transmits the data to the plurality of STAs according to the resource allocation information. The resource allocation information preferably includes a group ID indicating the plurality of STAs, a resource allocation bitmap having a format in common with the plurality of STAs, resource allocation information for each of the plurality of STAs and resource allocation sequence information indicating a resource allocation order of the STAs in the group.

公开(公告)号：US10447448B2

公开(公告)日：2019-10-15

申请号：US15523226

申请日：2015-11-02

Applicant: LG ELECTRONICS INC.

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

IPC: H04L12/24 ,  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, which includes a legacy preamble and a high efficiency-long training field (HE-LTF), and a data field; and transmitting the PPDU, wherein the data field is transmitted at four times (4×) the inverse discrete Fourier transform (IDFT)/discrete Fourier transform (DFT) cycle of the legacy preamble, the HE-LTF is a 4×HE-LTF or a 2×HE-LTF which is respectively transmitted at the four times or two times (2×) the IDFT/DFT cycle of the legacy preamble, and wherein pilot tones of the HE-LTF may be inserted only into subcarriers having an even number of indexes from among subcarriers to which the 4×HE-LTF is mapped.

公开(公告)号：US10374767B2

公开(公告)日：2019-08-06

申请号：US15767701

申请日：2016-10-14

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/06 ,  H04L5/00 ,  H04W72/04 ,  H04L27/26

Abstract: Provided is a method for a first station (STA) transmitting a frame to a second STA in a wireless LAN system. To this end, the first STA generates a wireless frame comprising a first part (L-part) for a first-type STA and a second part (HE-part) for a second-type STA, wherein the first part comprises a legacy short training field (L-STF), a legacy long training field (L-LTF) and a legacy signaling field (L-SIG), and the length of the L-SIG is set so as to indicate that the wireless frame is a frame of different types according to the remainder when the length of the L-SIG is divided by a predetermined natural number.

公开(公告)号：US10349388B2

公开(公告)日：2019-07-09

申请号：US15242008

申请日：2016-08-19

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04W72/08 ,  H04L5/00 ,  H04L1/00 ,  H04W84/12 ,  H04W28/10 ,  H04W4/70 ,  H04L1/06 ,  H04B7/06 ,  H04W88/08

Abstract: Disclosed herein is a sounding method of a station (STA) for sending feedback information about a downlink (DL) channel state in a wireless LAN (WLAN) system. The sounding method includes receiving an NDP announcement (NDPA) frame providing notification of the transmission of a null data packet (NDP) frame; receiving the NDP frame; receiving a trigger frame comprising resource allocation information allocated to the STA; generating feedback information using the NDP frame; and sending a feedback frame comprising feedback information through uplink (UL) multi-user (MU) transmission using a frequency resource indicated by the resource allocation information. The feedback information may be generated in a frequency granularity (FG) unit with respect to a transmission bandwidth having a size smaller than or equal to the size of a transmission bandwidth of the NDP frame.

公开(公告)号：US10334568B2

公开(公告)日：2019-06-25

申请号：US15559781

申请日：2016-07-07

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04B7/26 ,  H04L27/26 ,  H04L1/00 ,  H04L5/00 ,  H04B7/0452 ,  H04W84/12 ,  H04W88/08

Abstract: A method for transmitting a frame by an AP includes generating and transmitting a radio frame including a signaling field and a data field. The signaling field includes a SIG A field including first common control information for the plurality of STAs, and a SIG B field including specific control information for each of the plurality of STAs. The second signaling field includes a common field including second common control information for the plurality of STAs, and a specific field following the common field, including the specific control information for each of the plurality of STAs, and the specific field of the second signaling field transmitted in a specific 20-MHz band includes resource allocation information for one or more first-band STAs to which resources are allocated in the first band, and resource allocation information for one or more second-band STAs to which resources are allocated in another 20-MHz band.

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：US10292146B2

公开(公告)日：2019-05-14

申请号：US15502193

申请日：2015-08-05

Applicant: LG ELECTRONICS INC.

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

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

Abstract: Disclosed are a method and a device for allocating wireless resources for transmitting or receiving data in a wireless LAN. The method for allocating the wireless resources in the wireless LAN can comprise the steps of: allocating, by an access point (AP), each of the plurality of wireless resources for each of a plurality of stations (STAs) over the entire bandwidth; and transmitting, by the AP, a physical protocol data unit (PPDU) to each of the plurality of STAs through each of the plurality of wireless resources, wherein each of the plurality of wireless resources can be a combination of a plurality of wireless resource units defined as having different sizes from each other on a frequency axis.

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.