公开(公告)号：US10999113B2

公开(公告)日：2021-05-04

申请号：US16535756

申请日：2019-08-08

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo Choi ,  Wookbong Lee ,  Hangyu Cho ,  Dongguk Lim ,  Jinyoung Chun

IPC: H04L29/06 ,  H04L27/26 ,  H04L5/00

Abstract: A method and a device for transmitting a data unit are disclosed. A method for transmitting a PPDU can comprise the steps of: generating, by an STA, the PPDU including a first portion and a second portion; and transmitting, by the STA, the PPDU, wherein the first portion is generated by performing IFFT according to a first FFT size, the second portion is generated by performing IFFT according to a second FFT size, and the first FFT size can differ from the second FFT size.

公开(公告)号：US10904056B2

公开(公告)日：2021-01-26

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 ,  H04L1/00 ,  H04W84/12 ,  H04L1/04 ,  H04L27/26 ,  H04L27/28 ,  H04L5/00

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：US10728799B2

公开(公告)日：2020-07-28

申请号：US15770440

申请日：2016-10-24

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung Chun ,  Kiseon Ryu ,  Hangyu Cho

IPC: H04W28/06 ,  H04W74/00 ,  H04W80/02 ,  H04W28/02 ,  H04W84/12 ,  H04L1/00 ,  H04L1/16 ,  H04B7/26 ,  H04B7/06 ,  H04L5/00 ,  H04L29/06

Abstract: According to one embodiment of the present invention, an operation method for a station (STA) in a wireless LAN (WLAN) system comprises the steps of receiving a first physical protocol data unit (PPDU), and transmitting a second PPDU as a response to the first PPDU, wherein the first or second PPDU includes at least one MAC protocol data unit (MPDU), a MAC header of the MPDU includes a high-efficiency (HE) control field, the HE control field is a high throughput (HT) field, in which each of values of a very high throughput (VHT) sub-field indicating a VHT format and an HE sub-field indicating an HE format is set to “1”, and includes at least one control sub-field, and the at least one control sub-field is fixed at a preset length and can be included in the HE control field by being aggregated for each control identifier (ID).

公开(公告)号：US10587381B2

公开(公告)日：2020-03-10

申请号：US16030744

申请日：2018-07-09

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung Chun ,  Kiseon Ryu ,  Wookbong Lee ,  Jinsoo Choi ,  Dongguk Lim ,  Hangyu Cho ,  Suhwook Kim

IPC: H04L5/00 ,  H04B7/0417 ,  H04W84/12 ,  H04B7/0452

Abstract: A method and apparatus for transmitting a frame on the basis of a sounding procedure is disclosed. The method for transmitting the frame on the basis of a sounding procedure in a wireless LAN may comprise the steps of: transmitting an NDPA frame to each of multiple STAs by an AP wherein the NDPA frame notifies of the transmission of NDP; transmitting the NDP to each of the multiple STAs by the AP; receiving, by the AP, multiple feedback frames transmitted through multiple transmission sources allocated to the multiple STAs in time sources overlapped by the multiple STAs, respectively; and transmitting, by the AP, multiple downlink frames to the multiple STAs respectively.

公开(公告)号：US10575280B2

公开(公告)日：2020-02-25

申请号：US15537356

申请日：2015-12-15

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung Chun ,  Kiseon Ryu ,  Wookbong Lee ,  Hangyu Cho

IPC: H04W4/00 ,  H04W72/04 ,  H04L1/18 ,  H04L27/26 ,  H04W84/12

Abstract: Disclosed is an uplink (UL) multi-user (MU) transmission method of a station (STA) in a wireless LAN (WLAN) system. An UL MU transmission method of an STA in a WLAN system according to an embodiment of the present invention includes receiving a trigger frame including resource unit allocation information for orthogonal frequency division multiple access (OFDMA) transmission, sending an UL MU physical protocol data unit (PPDU) based on the resource unit allocation information, and receiving an ACK frame for the UL MU PPDU.

公开(公告)号：US10349283B2

公开(公告)日：2019-07-09

申请号：US15569035

申请日：2015-12-04

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk Lim ,  Jinyoung Chun ,  Jinsoo Choi ,  Hangyu Cho ,  Jinmin Kim ,  Eunsung Park

IPC: H04W16/10 ,  H04W72/04 ,  H04W72/12 ,  H04W76/20 ,  H04L1/00 ,  H04W52/28 ,  H04L27/26 ,  H04W28/06 ,  H04W52/34

Abstract: A method for receiving, by a station (STA), a signal in a wireless LAN system comprises: a step of receiving a frame which includes a SIG-A field including MCS information for a SIG-B field, and the SIG-B field encoded on the basis of any one MCS set among from multiple MCS sets; and a step of decoding the SIG-B field on the basis of the MCS information included in the SIG-A field, wherein a specific value in the MCS information indicating a first MCS level of a first MCS set from among the multiple MCS sets is re-used to indicate a second MCS level of a second MCS set, and which MCS level of the first MCS level and the second MCS level indicated by the specific value is set in the SIG-B field is implicitly indicated by a status of a channel on which the frame is received.

公开(公告)号：US10348460B2

公开(公告)日：2019-07-09

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 ,  H04B7/0452 ,  H04L27/26 ,  H04W84/12 ,  H04W88/08 ,  H04B7/0413

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：US10333751B2

公开(公告)日：2019-06-25

申请号：US15751447

申请日：2016-08-09

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk Lim ,  Jinyoung Chun ,  Jinsoo Choi ,  Hangyu Cho ,  Jinmin Kim ,  Eunsung Park

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

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：US10320529B2

公开(公告)日：2019-06-11

申请号：US15516325

申请日：2015-10-01

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung Chun ,  Kiseon Ryu ,  Jeongki Kim ,  Jinsoo Choi ,  Hangyu Cho

IPC: H04B7/06 ,  H04L1/00 ,  H04L1/16 ,  H04L29/06 ,  H04W72/04 ,  H04W84/12 ,  H04B7/0413

Abstract: Disclosed is a downlink (DL) multi-user (MU) transmission method of an AP device in a wireless local area network (WLAN) system including generating a DL MU physical protocol data unit (PPDU) including a physical preamble and a data field, the data field including at least one MAC protocol data unit (MPDU), the at least one MPDU including a MAC header and a MAC frame body, and the MAC header including ACK indication information for uplink (UL) MU transmission of an ACK frame as a response to data transmitted through the data field, and transmitting the DL MU PPDU.

公开(公告)号：US10278172B2

公开(公告)日：2019-04-30

申请号：US15329211

申请日：2015-07-03

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung Chun ,  Kiseon Ryu ,  Wookbong Lee ,  Hangyu Cho

IPC: H04W72/04 ,  H04L1/00 ,  H04L5/00 ,  H04L1/16 ,  H04L27/26 ,  H04W84/12 ,  H04W88/02

Abstract: Disclosed in the present invention are a method for transmitting a frame in a wireless communication system and a device therefor. Specifically, the method for transmitting a frame in a wireless communication system comprises a step in which a station (STA) transmits a frame comprising a legacy-short training field (L-STF), a legacy-long training field (L-LTF), and a signal (SIG) field, wherein the SIG field may comprise a trigger indication and a cascade indication, the trigger indication indicating whether the frame is a trigger frame comprising configuration information of an uplink multi-user (MU) data frame, and the cascade indication indicating whether the frame comprises a medium access control (MAC) frame.