公开(公告)号：US20170310506A1

公开(公告)日：2017-10-26

申请号：US15516346

申请日：2016-08-05

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung PARK ,  Jinsoo CHOI ,  Hangyu CHO

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

CPC classification number: H04L25/03 ,  H04L1/001 ,  H04L1/0031 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0048 ,  H04L27/2613 ,  H04L27/262 ,  H04L27/2666 ,  H04L27/34 ,  H04W84/12

Abstract: Disclosed are a method and an apparatus for generating an STF signal usable in a wireless LAN system. The STF signal is included in a field used to improve AGC estimation of a MIMO transmission. A portion of the STF signal is used to transmit an uplink, and can be used for uplink MU PPDUs transmitted from a plurality of STAs. The STF that is suggested, for example, is used for a 40 MHz band or an 80 MHz band and can be generated based on a sequence in which a predetermined M sequence is repeated. The predetermined M sequence can be a binary sequence of which the length is 15 bits.

公开(公告)号：US20170303279A1

公开(公告)日：2017-10-19

申请号：US15490798

申请日：2017-04-18

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04W24/02 ,  H04W84/12

CPC classification number: H04W72/0453 ,  H04W24/02 ,  H04W84/12

Abstract: Provides are a method and apparatus for configuring an LTF sequence in a wireless LAN system. More specifically, a transmission apparatus generates an LTF sequence corresponding to a first frequency band. The transmission apparatus sends an LTF sequence corresponding to the first frequency band to a reception apparatus. In this case, an LTF sequence corresponding to the second 106-RU of a second frequency band is used as a sequence located in the second 106-RU of the second frequency band in the LTF sequence corresponding to the first frequency band. The transmission apparatus may apply a phase shift of 180° to the LTF sequence corresponding to the second 106-RU of the second frequency band.

公开(公告)号：US20170279582A1

公开(公告)日：2017-09-28

申请号：US15504915

申请日：2015-07-24

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/00

CPC classification number: H04L5/0048 ,  H04L27/2613 ,  H04L27/2675 ,  H04L27/3455 ,  H04W84/12

Abstract: Disclosed is a pilot sequence transmission method for generating a BSS composed of a plurality of pilot sequences, and selectively generating an SSS, to be used with the BSS, according to a channel environment such that additional information is transmitted through a pilot sequence selected from a sequence set having the BSS and the SSS. Furthermore, also disclosed is a pilot sequence identification method analyzing a pilot sequence transmitted by a transmitter, so as to obtain additional information.

公开(公告)号：US20170272295A1

公开(公告)日：2017-09-21

申请号：US15500018

申请日：2015-07-02

Applicant: LG ELECTRONICS INC.

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

IPC: H04L27/26 ,  H04W72/04

CPC classification number: H04L27/2608 ,  H04L1/00 ,  H04L1/0071 ,  H04L5/00 ,  H04L27/26 ,  H04L27/2602 ,  H04L27/2628 ,  H04W72/04 ,  H04W84/12

Abstract: Disclosed is a method for a station (STA) device transmitting data in a Wireless Local Area Network (WLAN) system. The method for transmitting data, according to one embodiment of the present invention, comprises the steps of: FEC encoding transmission data; interleaving the transmission data; constellation mapping the transmission data; performing IDFT on the transmission data; and upconverting the transmission data and transmitting a transmission signal, wherein IDFT is performed using different FFT sizes for a first part of the transmission signal and a second part of the transmission signal, and the second part of the transmission signal is allocated to at least one STA in units of at least one resource unit.

公开(公告)号：US20170237543A1

公开(公告)日：2017-08-17

申请号：US15518736

申请日：2015-11-19

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/00 ,  H04B7/0452 ,  H04L29/08

CPC classification number: H04L5/0091 ,  H04B7/0452 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0039 ,  H04L5/0048 ,  H04L5/0051 ,  H04L27/261 ,  H04L69/324 ,  H04W84/12

Abstract: A method and apparatus for transmitting frames having a long training field (LTF) for a second type of station (STA) in a wireless communication system are provided. For this, STA prepares a frame having a first part for a first type of STA and a second part for the second type of STA; wherein the second part includes multiple LTFs, when the frame is used for MU (Multiple User) transmission scheme or OFDMA (Orthogonal Frequency Divisional Multiple Access) scheme. In case a first LTF having a first number of symbols length and a second LTF having a second number of symbols length, which is greater than the first number of symbols length, are used for the multiple LTFs, the first LTF is extended such that the first LTF and the second LTF have a same number of symbols length. The STA transmits the prepared frame to one or more STAs.

公开(公告)号：US20170230218A1

公开(公告)日：2017-08-10

申请号：US15518716

申请日：2015-11-02

Applicant: LG ELECTRONICS INC.

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

IPC: H04L27/26 ,  H04L5/00

CPC classification number: H04L27/2608 ,  H04L5/0048 ,  H04L27/2602 ,  H04L27/261 ,  H04W84/12

Abstract: Disclosed in the present invention are a method for transreceiving a physical protocol data unit (PPDU) in a wireless communication system and a device for same. More specifically, a method for transmitting a physical protocol data unit (PPDU) using a wireless communication device in a wireless communication system comprises the steps of: generating a PPDU including a legacy preamble, an HE-preamble, and a data field; and transmitting the generated PPDU, wherein a minimum integer number of pilot patterns are defined, wherein the minimum integer number is larger than the value obtained by dividing the total number of subcarriers constituting the data field or a fast Fourier transform (FFT) size value used when generating the PPDU by the total number of pilots, wherein specific pilot patterns from among the pilot patterns are allocated to each symbol of the data field, and wherein the index of a subcarrier to which the pilot is mapped may be determined by the pilot patterns.

公开(公告)号：US20170214561A1

公开(公告)日：2017-07-27

申请号：US15329532

申请日：2015-07-02

Applicant: LG ELECTRONICS INC.

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

IPC: H04L27/26 ,  H04L5/00 ,  H04L27/34 ,  H04W28/04 ,  H04L1/00

CPC classification number: H04L27/263 ,  H04L1/00 ,  H04L1/0071 ,  H04L5/0007 ,  H04L5/0053 ,  H04L27/2602 ,  H04L27/2633 ,  H04L27/3405 ,  H04W28/04 ,  H04W84/12 ,  H04W88/02

Abstract: Disclosed is a method for a station (STA) device transmitting data in a Wireless Local Area Network (WLAN) system. The method for transmitting data, according to one embodiment of the present invention, comprises the steps of: FEC encoding transmission data; interleaving the transmission data; constellation mapping the transmission data; performing IDFT on the transmission data; and upconverting the transmission data and transmitting a transmission signal, wherein the transmission signal comprises a first part and a second part, and IDFT is performed using different FFT sizes for the first part and the second part.

公开(公告)号：US20170180174A1

公开(公告)日：2017-06-22

申请号：US15327365

申请日：2015-08-04

Applicant: LG ELECTRONICS INC.

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

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

Abstract: Disclosed is a method for a station (STA) device transmitting data in a wireless local area network (WLAN) system. The method for transmitting data, according to one embodiment of the present invention, comprises the steps of: FEC encoding transmission data; constellation mapping the transmission data; inserting a pilot tone in the transmission data; performing Inverse Discrete Fourier Transform (IDFT) on the transmission data; and upconverting the transmission data and transmitting a transmission signal, wherein, if an Orthogonal Frequency Division Multiple Access (OFDMA) scheme is applied to the transmission signal, the transmission signal comprises at least one tone unit which is the unit of subcarrier allocation of the OFDMA scheme.

公开(公告)号：US20170111099A1

公开(公告)日：2017-04-20

申请号：US15295736

申请日：2016-10-17

Applicant: LG ELECTRONICS INC.

Inventor： Kyungtae JO ,  Hangyu CHO ,  Jinmin KIM ,  Eunsung PARK ,  Sungjin PARK

IPC: H04B7/06

CPC classification number: H04B7/0684 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/063 ,  H04B7/0695 ,  H04B7/10

Abstract: A method for performing a multi-beamforming training and a device using the same are provided. An initiator transmits a first beacon frame for beamforming training on a first channel during a sector sweep and transmits a second beacon frame for beamforming training on a second channel during the sector sweep. The first beacon frame comprises a multi-channel indicator that indicates that beamforming training is performed on the first and second channels.

公开(公告)号：US20170048862A1

公开(公告)日：2017-02-16

申请号：US15234929

申请日：2016-08-11

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04L5/0025 ,  H04B7/0452 ,  H04L5/0053 ,  H04L5/0094 ,  H04L27/2613 ,  H04W84/12

Abstract: Proposed is a control field including allocation information regarding a resource unit (RU) in a wireless local area network (WLAN) system supporting a plurality of RUs. A data field may be transmitted in unit of the RU. For a case where two 106-RUs are arranged and a plurality of user stations (STAs) are multiplexed to the respective 106-RUs, a SIG-B field may be used to perform signaling. More specifically, the number of STAs to be multiplexed may be indicated by using first and second identification bits in a user-common field of the SIG-B field.

Abstract translation: 提出了包括在支持多个RU的无线局域网（WLAN）系统中关于资源单元（RU）的分配信息的控制字段。 可以以RU为单位传输数据字段。 对于两个106RU被布置并且多个用户站（STA）被多路复用到各个106-RU的情况，可以使用SIG-B字段来执行信令。 更具体地，可以通过在SIG-B字段的用户公共字段中使用第一和第二标识位来指示待多路复用的STA的数量。