公开(公告)号：US20170289819A1

公开(公告)日：2017-10-05

申请号：US15471932

申请日：2017-03-28

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Hangyu CHO

IPC: H04W16/14 ,  H04W74/08 ,  H04W52/28

CPC classification number: H04W16/14 ,  H04W52/286 ,  H04W52/383 ,  H04W74/002 ,  H04W74/0808 ,  H04W84/12

Abstract: A method for a STA (Station) to transmit a frame to another STA is disclosed. The method includes preparing a VHT (Very High Throughput) frame including a first signaling field (VHT SIG A), a second signaling field (VHT SIG B) and a service field. One of the VHT SIG A, the VHT SIG B and the service field includes a subfield informing spatial reuse (SR) operation when the STA is capable to supporting HE (High Efficiency) WLAN (Wireless Local Area Network) scheme.

公开(公告)号：US20170288846A1

公开(公告)日：2017-10-05

申请号：US15470719

申请日：2017-03-27

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung PARK ,  Hangyu CHO ,  Jinsoo CHOI

IPC: H04L5/26 ,  H04L25/03 ,  H04L27/26 ,  H04W84/12 ,  H04L1/00 ,  H04W72/04 ,  H04L5/00 ,  H04L27/34

CPC classification number: H04L1/0023 ,  H04L1/0072 ,  H04L1/0075 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0064 ,  H04L25/0226 ,  H04L25/03 ,  H04L27/261

Abstract: Disclosed are a method and apparatus for generating a short training field (STF) sequence that can be used in a wireless LAN system. The STF signal is included in a field used to improve AGC estimation of MIMO transmission. Some of the STF signals may be used for uplink transmission and may be used for uplink MU PPDU transmitted from a plurality of STAs. For example, the STF signal is used for an 80 MHz band or a 160 MHz band and may be generated based on a sequence having a preset repeated M sequence. The preset M sequence may represent a binary sequence of a length having 15 bits.

公开(公告)号：US20170279581A1

公开(公告)日：2017-09-28

申请号：US15467835

申请日：2017-03-23

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung PARK ,  Hangyu CHO ,  Jinsoo CHOI

IPC: H04L5/00 ,  H04B7/0413 ,  H04W52/52 ,  H04W72/04

CPC classification number: H04L5/0048 ,  H04B7/0413 ,  H04W52/52 ,  H04W84/12

Abstract: Disclosed are a method and apparatus for generating a short training field (STF) sequence that can be used in a wireless LAN system. The STF signal is included in a field used to improve AGC estimation of MIMO transmission. Some of the STF signals may be used for uplink transmission and may be used for uplink MU PPDU transmitted from a plurality of STAs. For example, the STF signal is used for an 80 MHz band or a 160 MHz band and may be generated based on a sequence having a preset repeated M sequence. The preset M sequence may represent a binary sequence of a length having 15 bits.

公开(公告)号：US20170230217A1

公开(公告)日：2017-08-10

申请号：US15504639

申请日：2015-04-07

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk LIM ,  Jinyoung CHUN ,  Jinsoo CHOI ,  Wookbong LEE ,  Hangyu CHO ,  Eunsung PARK

IPC: H04L27/26

CPC classification number: H04L27/2608 ,  H04L27/2602 ,  H04L27/2613 ,  H04W84/12

Abstract: Disclosed is a method for transmitting a preamble in a wireless communication system, particularly, a wireless LAN system, and a station device for performing the same. To this end, a station for transmitting a preamble configures a wireless frame including a first type terminal frame portion, which has first length in a time domain, and a second type terminal frame portion, which has a second length corresponding to a length that is an integer times the first length. The first type terminal frame portion includes a first type terminal preamble including a first type terminal short training field (STF) and a first type terminal long training field (LTF), and the second type terminal frame portion includes a second type terminal preamble including a second type terminal SFT and a second type terminal LTF. Here, the station configures the second type terminal preamble by allocating sequence components at an interval of an integer number of tones in a frequency domain and transmits the configured wireless frame to another station.

公开(公告)号：US20170223722A1

公开(公告)日：2017-08-03

申请号：US15517507

申请日：2015-10-06

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo CHOI ,  Hangyu CHO ,  Wookbong LEE

IPC: H04W72/12 ,  H04L1/00 ,  H04L5/00

CPC classification number: H04W72/12 ,  H04L1/0071 ,  H04L5/00 ,  H04L5/0048 ,  H04L27/26 ,  H04W84/12 ,  H04W88/08

Abstract: Disclosed are a method and an apparatus for transmitting data on a resource unit including a pilot tone, in a WLAN. The method for transmitting data on the resource unit including the pilot tone, in a WLAN, comprises the steps of: an AP scheduling, on a bandwidth, each of a plurality of wireless resources for communicating with a plurality of STAs; and the AP transmitting, through each of the plurality of wireless resources, a plurality of items of downlink data to each of the plurality of STAs, wherein at least one wireless resource from among the plurality of wireless resources is a virtual allocation resource unit, and a set of positions of a plurality of first pilot tones included in the virtual allocation resource unit can be included in a set of positions of a plurality of second pilot tones, which is included in at least one first resource unit and at least one second resource unit that form the virtual allocation resource unit.

公开(公告)号：US20170223692A1

公开(公告)日：2017-08-03

申请号：US15508877

申请日：2015-04-07

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk LIM ,  Wookbong LEE ,  Hangyu CHO ,  Jinyoung CHUN ,  Jinsoo CHOI ,  Eunsung PARK

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/048 ,  H04L1/00 ,  H04L1/0001 ,  H04L1/0003 ,  H04L5/0046 ,  H04L27/26 ,  H04W84/12

Abstract: The present invention relates to a method for transmitting a frame in a wireless communication system, in particular, a high density wireless LAN system, and a station apparatus for performing the same. To this end, a station for transmitting a frame configures a radio frame for a second type station, including a frame part for a first type station and a frame part for the second type station, wherein the frame part for the second type station includes a first signaling field (SIG A) for the second type station and a second signaling field (SIG B) for the second type station. The SIG A for the second type station includes modulation and coding scheme (MCS) information applied to the SIG B for the second type station, and the MCS level applied to the SIG B for the second type station supports an MCS having level than the lowest MCS level defined for the first type station.

公开(公告)号：US20170214506A1

公开(公告)日：2017-07-27

申请号：US15326026

申请日：2015-08-19

Applicant: LG ELECTRONICS INC.

Inventor： Kilbom LEE ,  Jiwon KANG ,  Jinsoo CHOI ,  Wookbong LEE ,  Dongguk LIM ,  Hangyu CHO ,  Eunsung PARK

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

CPC classification number: H04L5/0048 ,  H04L27/2613 ,  H04W72/042 ,  H04W84/12

Abstract: One embodiment of the present invention provides a transmitter and a pilot sequence transmission method comprising: generating an asymmetric sequence set comprising a plurality of pilot sequences which have been circular shifted by irregular intervals on a time axis; mapping, to the respective pilot sequences included in the asymmetric sequence set, additional information that is shown by using shared bits and non-shared bits; and selecting any one pilot sequence selected from the asymmetric sequence set and transmitting same to a receiver.

公开(公告)号：US20170208547A1

公开(公告)日：2017-07-20

申请号：US15424211

申请日：2017-02-03

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo CHOI ,  Hangyu CHO ,  Joengki KIM

IPC: H04W52/02 ,  H04W4/00 ,  H04W74/06 ,  H04W72/04 ,  H04W72/12

CPC classification number: H04W52/0216 ,  H04B7/0452 ,  H04L61/2069 ,  H04W4/70 ,  H04W52/0219 ,  H04W52/0235 ,  H04W52/0238 ,  H04W72/005 ,  H04W72/0446 ,  H04W72/121 ,  H04W72/1215 ,  H04W74/04 ,  H04W74/06 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/21 ,  Y02D70/22

Abstract: An embodiment of the present invention provides a method for performing channel access at an STA of a multiuser (MU) group in a wireless communication system, including receiving a resource assignment frame; and checking a group indicator field included in the resource assignment frame, wherein, if the group indicator field indicates that a slot assignment field for the MU group is present in the resource assignment frame, the STA determines a slot start offset based on the slot assignment field.

公开(公告)号：US20170207837A1

公开(公告)日：2017-07-20

申请号：US15406598

申请日：2017-01-13

Applicant: LG ELECTRONICS INC.

Inventor： Sanggook KIM ,  Kyungtae JO ,  Hangyu CHO

IPC: H04B7/06 ,  H01Q3/10 ,  H01Q3/00 ,  H01Q3/24 ,  H04W28/16 ,  H04W84/04 ,  H01Q3/12 ,  H01Q3/30

CPC classification number: H04B7/0604 ,  H01Q3/005 ,  H01Q3/10 ,  H01Q3/12 ,  H01Q3/24 ,  H01Q3/30 ,  H04B7/0408 ,  H04B7/0617 ,  H04W28/16 ,  H04W84/042 ,  H04W84/12

Abstract: Provided are a method and apparatus for performing beamforming training in a wireless local area network. The apparatus receives a plurality of beacon frames for sector sweep in a beacon transmission interval (BTI) from an access point (AP). At least one beacon frame of the plurality of beacon frames includes overload information which indicates an overload state. The apparatus performs a random backoff on a plurality of channels during association-beamforming training (A-BFT) consequent to the BTI based on the overload information.

公开(公告)号：US20170149540A1

公开(公告)日：2017-05-25

申请号：US15323670

申请日：2015-08-19

Applicant: LG ELECTRONICS INC.

Inventor： Kilbom LEE ,  Jiwon KANG ,  Wookbong LEE ,  Jinsoo CHOI ,  Dongguk LIM ,  Hangyu CHO ,  Eunsung PARK

IPC: H04L5/00 ,  H04L27/26 ,  H04L27/18

CPC classification number: H04L5/005 ,  H04L5/0026 ,  H04L5/0048 ,  H04L27/0008 ,  H04L27/18 ,  H04L27/26 ,  H04L27/2613

Abstract: Disclosed is a method for transmitting a pilot sequence, the method comprising: generating a sequence set on the basis of a baseline sequence having non-CAZAC properties; and selecting any one pilot sequence form among sequence sets corresponding to different additional information, and transmitting same to a receiver.