公开(公告)号：US20200235884A1

公开(公告)日：2020-07-23

申请号：US16842639

申请日：2020-04-07

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/00 ,  H04L27/26

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：US20190159212A1

公开(公告)日：2019-05-23

申请号：US16257613

申请日：2019-01-25

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo CHOI ,  Hangyu CHO ,  Wookbong LEE ,  Jeongki KIM

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

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：US20180212725A1

公开(公告)日：2018-07-26

申请号：US15329227

申请日：2015-10-15

Applicant: LG ELECTRONICS INC.

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

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

Abstract: The present invention relates to a method for transmitting and receiving a Physical Protocol Data Unit (PPDU) and an apparatus for supporting the same. Particularly, a method for transmitting a Physical Protocol Data Unit (PPDU) performed by an apparatus in a wireless communication system may include generating a High Efficiency-Short Training Field (HE-STF) sequence in a frequency domain throughout a transmission bandwidth of the PPDU and transmitting the PPDU that includes an HE-STF field which is constructed based on the HE-STF sequence, wherein the HE-STF sequence may be mapped to a data tone except a direct current tone and a guard tone, and wherein a non-zero value may be mapped to all data tones that include a tone index which is a multiple of a predetermined value in the data tone.

公开(公告)号：US20180123758A1

公开(公告)日：2018-05-03

申请号：US15324604

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

CPC classification number: H04L5/0051 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0064 ,  H04L5/0082 ,  H04W72/0446 ,  H04W72/048 ,  H04W72/121 ,  H04W72/14 ,  H04W84/12

Abstract: Disclosed are a transmitter and a pilot sequence transmission method comprising: generating an asymmetric sequence set comprising pilot sequences which have been shifted by irregular intervals; mapping, to the pilot sequences, additional information that is shown by using shared bits and non-shared bits; and selecting any one pilot sequence and transmitting same.

公开(公告)号：US20180109300A1

公开(公告)日：2018-04-19

申请号：US15566207

申请日：2016-04-14

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo CHOI ,  Hangyu CHO ,  Wookbong LEE

IPC: H04B7/0452 ,  H04L27/32 ,  H04L5/00

CPC classification number: H04B7/0452 ,  H04L5/0007 ,  H04L5/0094 ,  H04L27/2602 ,  H04L27/32 ,  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：US20180048503A1

公开(公告)日：2018-02-15

申请号：US15556281

申请日：2015-10-21

Applicant: LG ELECTRONICS INC.

Inventor： Jinmin KIM ,  Wookbong LEE ,  Hangyu CHO ,  Eunsung PARK

IPC: H04L27/26

CPC classification number: H04L27/26 ,  H04L27/2602 ,  H04L27/2605 ,  H04L27/2613 ,  H04W84/12 ,  H04W88/02

Abstract: A data transmission method by a station (STA) apparatus of a wireless LAN system is disclosed. A data transmission method by an STA apparatus according to the present invention comprises the steps of: generating a physical protocol data unit (PPDU) including a physical preamble and a data field; determining whether to add a padding symbol to the PPDU; generating and adding the padding symbol to the PPDU if adding the padding symbol is determined; and transmitting the PPDU.

公开(公告)号：US20170367090A1

公开(公告)日：2017-12-21

申请号：US15532365

申请日：2015-12-01

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04L5/00 ,  H04W72/08

CPC classification number: H04W72/0426 ,  H04L5/001 ,  H04L5/0035 ,  H04L5/0044 ,  H04L5/0053 ,  H04L5/0091 ,  H04L5/0092 ,  H04L5/0098 ,  H04L12/5692 ,  H04L47/18 ,  H04W72/00 ,  H04W72/04 ,  H04W72/0446 ,  H04W72/08

Abstract: A method for resource allocation in a wireless LAN system according to an embodiment of the present invention is characterized in that an access point (AP) sends a frame comprising a signaling field and a data field to one or more stations, wherein the signaling field comprises a first signaling field (SIG A field) including first common control information for the one or more stations and a second signaling field (SIG B field) including individual control information for each of the one or more stations, wherein the second signaling field includes resource allocation information for data transmission to the one or more stations, and wherein the resource allocation information comprises resource allocation information for data to be transmitted in a frequency band different from a frequency band in which the second signaling field (SIG B field) is transmitted.

公开(公告)号：US20170359824A1

公开(公告)日：2017-12-14

申请号：US15524037

申请日：2015-11-24

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo CHOI ,  Hangyu CHO ,  Wookbong LEE

IPC: 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：US20170338919A1

公开(公告)日：2017-11-23

申请号：US15525014

申请日：2015-08-04

Applicant: LG ELECTRONICS INC.

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

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

CPC classification number: H04L5/0007 ,  H04B7/0413 ,  H04B7/0452 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0092 ,  H04L27/2602 ,  H04L27/2605 ,  H04L27/2613 ,  H04L27/2626 ,  H04W84/12 ,  H04W88/08

Abstract: Disclosed is a method for transmitting, by a first station, a frame in a wireless LAN system, and a station device therefor. To this end, a station generates 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 second type station comprises a signal field, a short training field (STF), a long training field (LTF), and a data field, the LTF having a symbol duration that is two or four times longer than the symbol duration of the frame portion for the first type station, and the signal field comprising information about the symbol duration of the LTF for the second type station.

公开(公告)号：US20170324525A1

公开(公告)日：2017-11-09

申请号：US15521552

申请日：2016-02-23

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo CHOI ,  Hangyu CHO ,  Eunsung PARK ,  Wookbong LEE

IPC: H04L5/00 ,  H04L29/08 ,  H04L27/26

CPC classification number: H04L5/0007 ,  H04L5/0039 ,  H04L27/2602 ,  H04L27/2627 ,  H04L29/08 ,  H04W84/12

Abstract: The present specification presents a technique for transmitting a PPDU by using a resource unit including carriers of different sizes. For example, a PPDU is transmitted by using five frequency bands, a left guard band, and a right guard band. Null subcarriers can be included in the five frequency bands according to the type of included resource unit. The null subcarriers can be the leftmost side or the rightmost side of each frequency band, and the number of included null subcarriers can be determined according to the size of the carrier included in each resource unit or the type of resource unit. A frequency band including DC carriers can include only one resource unit having a discontinuous carrier, and null subcarriers can be further included around the DC carriers.