公开(公告)号：US20200288396A1

公开(公告)日：2020-09-10

申请号：US16645446

申请日：2018-08-20

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung PARK ,  Jinyoung CHUN ,  Dongguk LIM ,  Jinsoo CHOI

IPC: H04W52/02 ,  H04L27/02

Abstract: Presented are a method and device for transmitting a wakeup packet in a wireless LAN system. Specifically, the transmission device configures a first wakeup packet having a first data rate by using a first sync field, and a second wakeup packet having a second data rate by using a second sync field. The transmission device transmits the first and second wakeup packets to a receiving device. Here, an OOK scheme is applied to the first and second wakeup packets to configure the first and second wakeup packets as an ON signal or an OFF signal. The first sync field includes a first sequence, and the second sync field includes a second sequence which is a complementary sequence to the first sequence. The number of coefficient 1 and coefficient 0 included in the first sequence is the same. The first and second sequences have a 32 bit length, and each bit of the first and second sequences has a duration of 2 μs.

公开(公告)号：US20200084076A1

公开(公告)日：2020-03-12

申请号：US16683022

申请日：2019-11-13

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk LIM ,  Jinyoung CHUN ,  Jinsoo CHOI ,  Hangyu CHO ,  Jinmin KIM ,  Eunsung PARK

IPC: H04L27/20 ,  H04L27/26 ,  H04L1/00 ,  H04W84/12 ,  H04L27/28 ,  H04L1/04

Abstract: Disclosed according to one embodiment of the present invention is a method whereby a first station (STA) transmits signals using dual carrier modulation (DCM) in a wireless LAN system, comprising: modulating HE-SIG B field information and/or data field information on a wireless frame transmitted by the first STA and transmitting same to a second STA, wherein in the case of modulating the HE-SIG B field information and/or the data field information in a BPSK mode, if a random symbol C1 among symbols modulated in the BPSK mode is mapped to a subcarrier K, a symbol formed by rotating the phase of the symbol C1 is mapped to a subcarrier K+N/2 in a repeating manner, wherein N corresponds to the number of subcarriers of a resource unit for transmitting the HE-SIG B field information and the data field information and K is a random integer equal to or less than N/2.

公开(公告)号：US20190342885A1

公开(公告)日：2019-11-07

申请号：US16518601

申请日：2019-07-22

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung CHUN ,  Kiseon RYU ,  Jeongki KIM ,  Jinsoo CHOI ,  Dongguk LIM ,  Hangyu CHO ,  Jinmin KIM ,  Eunsung PARK

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

Abstract: Disclosed herein is an operating method of a station (STA) in a wireless LAN (WLAN) system. The method includes receiving a downlink (DL) physical protocol data unit (PPDU) and sending an uplink (UL) PPDU as a response to the DL PPDU. The DL PPDU may include at least one MAC protocol data unit (MPDU) and the at least one MPDU may include a first high efficiency (HE) control field. The UL PPDU may include at least one MAC protocol data unit (MPDU) and the at least one MPDU may include a second high efficiency (HE) control field. The each of the first and second HE control fields corresponds to an HT control field and comprises a plurality of aggregated HE control subfield. The HT control field includes VHT subfield value set to “1” and HE subfield value set to “1”.

公开(公告)号：US20190124638A1

公开(公告)日：2019-04-25

申请号：US15571797

申请日：2016-03-14

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04

Abstract: According to one embodiment of the present invention, an AP generates a frame including a signaling field and a data field so as to transmit the frame to one or more STAs, wherein: the signaling field includes a first signaling field having first common control information on the one or more STAs, and a second signaling field having individual control information for each of the one or more STAs; and the second signaling field includes a common field having second common control information on the one or more STAs, and individual fields having individual control information for each of the one or more STAs. In addition, if the frame is transmitted with a bandwidth of 40 MHz or more, the second signaling field transmits independent control information in two adjacent 20 MHz bands.

公开(公告)号：US20190097862A1

公开(公告)日：2019-03-28

申请号：US15527289

申请日：2015-11-17

Applicant: LG ELECTRONICS INC.

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

IPC: H04L27/26 ,  H04L27/227

CPC classification number: H04L27/2676 ,  H04L5/0007 ,  H04L5/001 ,  H04L27/0014 ,  H04L27/227 ,  H04L27/2657 ,  H04L2027/0026

Abstract: Disclosed is a CFO estimation method, which generates a first function defined by a received signal of two sequential OFDM symbols for a specific subcarrier, generates a second function defined on the basis of signs and magnitudes of a real number part and an imaginary number part of the first function, repeats the steps of generating the first function and the second function for all of a subcarrier set, and determines, as a residual CFO, a phase of a third function obtained by adding up the results of the repetition.

公开(公告)号：US20180254871A1

公开(公告)日：2018-09-06

申请号：US15753917

申请日：2016-08-19

Applicant: LG ELECTRONICS INC.

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

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

CPC classification number: H04L5/0053 ,  H04L5/00 ,  H04L27/2602 ,  H04L27/265 ,  H04L27/2666 ,  H04W72/0453 ,  H04W84/12

Abstract: Proposed is an example relating to a control field used in a PPDU of a wireless LAN system which supports a plurality of RUs. The PPDU comprises a plurality of SIG-B fields and a plurality of data fields. Each SIG-B field and each data field correspond to any one of a plurality of 20 MHz. Each of the plurality of data fields can be allocated or indicated by any one of the plurality of SIG-B fields. The mapping relationship between the data fields and the SIG-B fields can be indicated by a mapping rule. The mapping rule can be indicated by the SIG-B fields.

公开(公告)号：US20180234269A1

公开(公告)日：2018-08-16

申请号：US15948193

申请日：2018-04-09

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung PARK ,  Jinsoo CHOI ,  Hangyu CHO

IPC: H04L25/03 ,  H04B7/0413 ,  H04W52/52 ,  H04W84/12

CPC classification number: H04L25/03 ,  H04B7/0413 ,  H04L5/0048 ,  H04L25/0224 ,  H04L27/2613 ,  H04W52/52 ,  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. The STF signal that is suggested, for example, can be used for an 80 MHz band and can be generated based on a sequence in which a predetermined M sequence is repeated. Also, the disclosed STF signal can be used for a 1×STF signal from the 1×STF signal and a 2×STF signal. The predetermined M sequence can be a binary sequence of which the length is 15 bits.

公开(公告)号：US20180070344A1

公开(公告)日：2018-03-08

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

CPC classification number: H04W72/0406 ,  H04B7/0452 ,  H04B7/26 ,  H04L1/00 ,  H04L1/0008 ,  H04L1/0059 ,  H04L1/246 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/0053 ,  H04L5/0064 ,  H04L5/0082 ,  H04L5/0094 ,  H04L27/2602 ,  H04W72/042 ,  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：US20170359812A1

公开(公告)日：2017-12-14

申请号：US15619342

申请日：2017-06-09

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04W84/12

CPC classification number: H04W72/0453 ,  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. The control field including the allocation information regarding the RU may be included in an uplink or downlink a physical layer (PHY) protocol data unit (PPDU), and may be designed in consideration of a plurality of frequency bands. A control field corresponding to a specific frequency band may be duplicated in a different frequency band. Further, the control field corresponding to the specific frequency band may be used for scheduling of a data field corresponding to the same frequency band and a data field corresponding to the different frequency band.

公开(公告)号：US20170338927A1

公开(公告)日：2017-11-23

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: H04L5/00 ,  H04L27/26 ,  H04W84/12

CPC classification number: H04L5/0051 ,  H04L5/0044 ,  H04L5/0048 ,  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.