公开(公告)号：US11627496B2

公开(公告)日：2023-04-11

申请号：US17713616

申请日：2022-04-05

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung Chun ,  Jinsoo Choi ,  Dongguk Lim ,  Eunsung Park ,  Jeongki Kim

IPC: H04W28/20 ,  H04W28/06 ,  H04W84/12

Abstract: The present specification proposes a method for configuring a trigger frame that can be applied to a next-generation Wireless LAN (WLAN) system and an apparatus using the method. As an example, the trigger frame of the present specification may set a bandwidth for a trigger-based (TB) PPDU of up to 320 MHz. As another example, the trigger frame of the present specification may set the format of the TB PPDU transmitted through a primary bandwidth. As another example, the trigger frame of the present specification may trigger an aggregated PPDU (A-PPDU).

公开(公告)号：US20230081928A1

公开(公告)日：2023-03-16

申请号：US17797894

申请日：2021-02-02

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung Park ,  Jinyoung Chun ,  Jinsoo Choi ,  Dongguk Lim

IPC: H04L27/26 ,  H04L5/00

Abstract: Presented are a method and a device for receiving a PPDU in a wireless LAN system. Particularly, a receiving STA receives a PPDU from a transmitting STA through a broadband, and decodes the PPDU. The PPDU includes a legacy preamble and first and second signal fields. The legacy preamble and the first and second signal fields are generated on the basis of a first phase rotation value. The first phase rotation value is acquired on the basis of a first preamble puncturing pattern of the broadband. The first preamble puncturing pattern includes the pattern in which 40 MHz or 80 MHz band is punctured in the broadband, when the broadband is a 320 MHz band. The first phase rotation value is [1 −1 −1 −1 1 −1 −1 −1 −1 1 1 1 −1 1 1 1].

公开(公告)号：USRE49420E1

公开(公告)日：2023-02-14

申请号：US17098104

申请日：2020-11-13

Applicant: LG Electronics Inc.

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

IPC: H04B7/02 ,  H04B7/06 ,  H04B7/0452 ,  H04L1/00 ,  H04L1/06 ,  H04L1/1607 ,  H04L65/40 ,  H04L69/323 ,  H04W74/00 ,  H04W72/04

Abstract: In the present invention, disclosed is a method for uplink multi-user transmission in a wireless communication system and an apparatus therefor. Specifically, a method for performing, by a station (STA), uplink (UL) multi-user (MU) transmission in a wireless communication system comprises the steps of: receiving, from an access point (AP), a trigger frame including information for UL MU transmission; and transmitting an UL MU PPDU on the basis of the information for UL MU transmission, wherein the trigger frame is a medium access control (MAC) frame, a MAC header of the trigger frame includes a type field and a subtype field, and the type of the trigger frame may be indicated by the type field and the subtype field.

公开(公告)号：US11451421B2

公开(公告)日：2022-09-20

申请号：US16494751

申请日：2018-03-20

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung Park ,  Jinyoung Chun ,  Jinsoo Choi ,  Dongguk Lim

IPC: H04L27/02 ,  H04L27/26 ,  H04W52/02 ,  H04W84/12

Abstract: Proposed are a method and an apparatus for transmitting a wake-up frame in a wireless LAN system. Specifically, a transmission apparatus configures a wake-up frame to which an OOK scheme is applied, and transmits the wake-up frame to a reception apparatus. The wake-up frame comprises an on-signal and an off-signal. The on-signal is configured using a signal obtained by masking one-half of a signal obtained by inserting a CP into a first time domain signal. The first time domain signal is generated by inserting coefficients into 13 consecutive subcarriers in a 20 MHz band and performing 64-point IFFT on the 13 consecutive subcarriers. A signal placed at a front part of the on-signal is nulled.

公开(公告)号：US11388725B2

公开(公告)日：2022-07-12

申请号：US16970947

申请日：2019-02-25

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung Park ,  Jinmin Kim ,  Kiseon Ryu ,  Dongguk Lim ,  Jinyoung Chun ,  Jinsoo Choi

IPC: H04W76/11 ,  H04W8/24 ,  H04W72/04 ,  H04L1/16 ,  H04L5/14 ,  H04W84/12

Abstract: Disclosed is a method and a device for transmitting and receiving a PPDU based on FDR in a wireless LAN system. More specifically, an AP generates FDR indication information on that the AP is capable of performing the FDR and transmits a DL PPDU including the FDR indication information to a first STA and a second STA. The AP receives a first UL PPDU from the first STA and a second UL PPDU form the second STA. A DL PPDU, a first UL PPDU, and a second UL PPDU are transmitted and received based on the FDR.

公开(公告)号：US11284349B2

公开(公告)日：2022-03-22

申请号：US16754729

申请日：2018-10-08

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk Lim ,  Eunsung Park ,  Jinyoung Chun ,  Jinsoo Choi

IPC: H04W52/02 ,  H04W84/12 ,  H04W88/08

Abstract: A method for transmitting a physical protocol data unit (PPDU) by an access point (AP) in a wireless LAN (WLAN) according to an embodiment of the present disclosure may comprise the steps of: generating a legacy-signal (L-SIG) field for a wake-up radio (WUR) PPDU; on the basis of the L-SIG field, generating one binary phase shift keying (BPSK) symbol located between the L-SIG field and a WUR band preamble; and transmitting the WUR PPDU including the L-SIG field, the one BPSK symbol, and the WUR band preamble, wherein the AP generates the one BPSK symbol on the basis of the same bit sequence as a bit sequence for the L-SIG field.

公开(公告)号：US11252666B2

公开(公告)日：2022-02-15

申请号：US16641107

申请日：2018-06-19

Applicant: LG Electronics Inc.

Inventor： Jinyoung Chun ,  Eunsung Park ,  Dongguk Lim ,  Jinsoo Choi

IPC: H04W56/00 ,  H04W52/02 ,  H04L27/02 ,  H04W52/52 ,  H04W84/12

Abstract: A method by which an access point (AP) transmits a wake-up radio (WUR) signal in a wireless LAN (WLAN), according to one embodiment of the present invention, comprises the steps of: determining a synchronization signal providing time synchronization for a data signal in the WUR signal; and transmitting the WUR signal including the synchronization signal and the data signal, wherein the synchronization signal can be an on-off keying (OOK) signal having a length of 128 us and generated by mapping, to 2 us symbol, each bit of a binary sequence having a length of 64, when a data rate of the data signal is 62.5 kbps.

公开(公告)号：US11184853B2

公开(公告)日：2021-11-23

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 ,  H04W84/12

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：US11005611B2

公开(公告)日：2021-05-11

申请号：US16549980

申请日：2019-08-23

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/00 ,  H04J11/00 ,  H04W74/00 ,  H04W84/12

Abstract: A wireless communication system and, more particularly, to a method for performing efficient signaling for a reserved sub-band in a wireless LAN system, and a method and an apparatus for signal transmission using the same. To this end, an STA provides resource allocation information for transmitting data to a plurality of STAs using an orthogonal frequency divisional multiple access (OFDMA) or multiple user MIMO (MU-MIMO) method; transmits the resource allocation information to the plurality of STAs; and transmits data to the plurality of STAs according to the resource allocation information. The entire frequency band may include a sub-band which is not used for the data transmission, and it is preferable that the resource allocation information includes a resource allocation bitmap having a form common to the plurality of STAs and indication information which informs a sub-band, from among the entire frequency band, which is not used for the data transmission.

公开(公告)号：US10826588B2

公开(公告)日：2020-11-03

申请号：US15567073

申请日：2016-04-15

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/06 ,  H04L25/02 ,  H04L27/26 ,  H04L1/00 ,  H04L1/06 ,  H04B17/336 ,  H04L5/00 ,  H04W84/12

Abstract: According to an embodiment of present invention, a sounding method for an STA (Station) to transmit feedback information of a downlink (DL) channel state in a WLAN (Wireless LAN) system according to one embodiment of the present invention comprises receiving an NDPA (NDP announcement) frame that notifies of transmission of an NDP (Null Data Packet) frame, receiving the NDP frame, receiving a trigger frame including resource allocation information allocated to the STA, generating channel state information on the basis of a training field included in the NDP frame; and performing uplink (UL) multi-user (MU) transmission of the feedback frame including the channel state information by using a frequency resource indicated by the resource allocation information.