公开(公告)号：US20170289963A1

公开(公告)日：2017-10-05

申请号：US15510230

申请日：2015-09-14

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo CHOI ,  Wookbong LEE ,  Hangyu CHO

IPC: H04W72/04 ,  H04W72/12

CPC classification number: H04W72/04 ,  H04L5/0007 ,  H04W72/0453 ,  H04W72/12 ,  H04W84/12 ,  H04W88/08

Abstract: A method and a device for allocating resource units in a wireless LAN are disclosed. The method for allocating resource units in a wireless LAN can comprise the steps of: scheduling, by an AP, wireless resources for communicating with an STA on a bandwidth; and transmitting, by the AP, downlink data to the STA through the wireless resources, wherein the wireless resources are determined on the basis of a resource allocation combination according to the bandwidth size, and the resource allocation combination is a combination of at least one resource unit allocable on the whole available tone according to the bandwidth size, and the whole available tone can be a multiple of 242 tones according to the bandwidth size.

公开(公告)号：US20170289962A1

公开(公告)日：2017-10-05

申请号：US15508819

申请日：2015-09-04

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04B7/0452 ,  H04L5/00

CPC classification number: H04W72/04 ,  H04B7/0452 ,  H04L5/0007 ,  H04W72/042 ,  H04W74/04 ,  H04W74/0808 ,  H04W84/12

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：US20170280462A1

公开(公告)日：2017-09-28

申请号：US15505471

申请日：2015-08-21

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/08 ,  H04L1/00 ,  H04W74/04 ,  H04W84/04 ,  H04L27/34 ,  H04L27/26

CPC classification number: H04W72/082 ,  H04L1/00 ,  H04L1/0061 ,  H04L1/1614 ,  H04L1/1671 ,  H04L5/0053 ,  H04L27/2601 ,  H04L27/34 ,  H04W74/04 ,  H04W84/04

Abstract: According to an aspect of the present invention, a method for transmitting data performed by a station (STA) device in a Wireless LAN (WLAN) system may include generating a Physical Protocol Data Unit (PPDU) including a physical preamble and a data field; and transmitting the PPDU, where the physical preamble may include a High Efficiency (HE)-Signal (SIG) A field including common control information and an HE-SIG B field including user-specific information, and where the common control information of the HE-SIG A field may include MCS information of a Modulation and Coding Scheme level applied to the HE-SIG B field.

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：US20170215189A1

公开(公告)日：2017-07-27

申请号：US15480336

申请日：2017-04-05

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Hangyu CHO ,  Jinsoo CHOI

IPC: H04W72/04 ,  H04W52/02

CPC classification number: H04W72/0446 ,  H04W4/70 ,  H04W52/0206 ,  H04W74/006 ,  H04W84/12 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/124 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/21 ,  Y02D70/22

Abstract: An embodiment of the present invention provides a method for receiving a signal from an access point (AP) by a station (STA) in a wireless communication system, the method comprising the steps of: receiving a raw parameter set (RPS) element including a restricted access window (RAW) allocation field; and identifying, in the RAW allocation field, first information indicating whether the RAW allocation field relates to a periodic RAW and second information indicating whether the RAW allocation field relates to AP power management (PM), wherein the STA can acquire only information relating to a time interval of the RAW in subfields other than a subfield including the first information and the second information when the RAW relates to the AP PM.

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.