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公开(公告)号：US11411788B2
公开(公告)日：2022-08-09
申请号：US15733876
申请日：2019-05-31
Applicant: LG ELECTRONICS INC.
Inventor： Sunwoong Yun , Jinmin Kim , Eunsung Park , Dongguk Lim , Jinsoo Choi
Abstract: This specification is related to a long training field (LTF) symbol of a WLAN. The LTF symbol may be generated based on a first LTF generation sequence used for an odd-numbered stream and a second LTF generation sequence used for an even-numbered stream. An even-numbered element of the first LTF generation sequence may be set to zero (0), and an odd-numbered element of the second LTF generation sequence may be set to zero (0). A plurality of LTF symbols for first and third streams may be generated by applying a P mapping matrix to the first LTF generation sequence. A plurality of LTF symbols for a second stream may be generated by applying the P matrix to the second LTF generation sequence.
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公开(公告)号：US10951298B2
公开(公告)日：2021-03-16
申请号：US16461351
申请日：2019-02-08
Applicant: LG ELECTRONICS INC.
Inventor： Sungjin Park , Jinmin Kim , Sunwoong Yun , Jinsoo Choi
Abstract: Proposed are a method and a device for transmitting a signal in a wireless local area network (WLAN) system. Specifically, a first STA transmits at least one BRP frame in order to perform MIMO beamforming training with a second STA. The at least one BRP frame is transmitted during a TDD-based SP. The first STA transmits a signal to the second STA based on MIMO beamforming training. The SP includes a first TDD slot and a second TDD slot. If only a first BRP frame, which is part of the at least one BRP frame, can be transmitted in the first TDD slot, a second BRP frame, which is the remaining of the at least one BRP frame, is transmitted in the second TDD. The second TDD slot is a transmission TDD slot allocated first after the first TDD slot.
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公开(公告)号：US10945301B2
公开(公告)日：2021-03-09
申请号：US16175593
申请日：2018-10-30
Applicant: LG ELECTRONICS INC.
Inventor： Sunwoong Yun , Jinmin Kim , Sungjin Park , Jinsoo Choi
Abstract: Disclosed herein are a method for transmitting and receiving a signal based on a channel aggregation transmission in a wireless local access network system and devices supporting the same. Particularly, disclosed herein are a method for transmitting and receiving a signal comprising a training field based on a channel aggregation transmission in a wireless local access network system and operation of devices supporting the same.
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4.发明授权公开(公告)号：US10771209B2
公开(公告)日：2020-09-08
申请号：US16322284
申请日：2018-03-27
Applicant: LG ELECTRONICS INC.
Inventor： Sunwoong Yun , Jinmin Kim , Sungjin Park , Jinsoo Choi
Abstract: The present specification suggests a method for transmitting and receiving a signal, by a station, in a wireless LAN (WLAN) system supporting a maximum of eight space time streams, and an apparatus therefor. More specifically, the present specification suggests a method for transmitting and receiving a signal including a pilot sequence for 2 channel bonding per each space time stream when a station transmits and receives a signal through a channel in which two channels are bonded, and an apparatus therefor.
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5.发明授权公开(公告)号：US10608789B2
公开(公告)日：2020-03-31
申请号：US16325378
申请日：2018-04-09
Applicant: LG ELECTRONICS INC.
Inventor： Sunwoong Yun , Jinmin Kim , Sungjin Park , Jinsoo Choi
Abstract: A method of transmitting and receiving signals in a wireless local area network (WLAN) system and a device for the same are provided. More particularly, there are provided a method and a device for the same in which a station operating in an orthogonal frequency division multiplexing (OFDM) mode transmits and receives signals through two aggregated channels.
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Patent Agency Ranking
公开(公告)号：US11576178B2
公开(公告)日：2023-02-07
申请号：US17263040
申请日：2019-07-19
Applicant: LG ELECTRONICS INC.
Inventor： Eunsung Park , Sunwoong Yun , Dongguk Lim , Jinsoo Choi
Abstract: A method and a device for transmitting a PPDU in a WLAN system are proposed. Specifically, a transmission device generates a PPDU and transmits the PPDU to a reception device through a 320 MHz band. The PPDU includes a legacy preamble and an EHT field, and the legacy preamble includes an L-STF and an L-LTF. The legacy preamble is generated by applying a first phase rotation value or a second phase rotation value. The first phase rotation value is obtained based on a third phase rotation value and a fourth phase rotation value. The third phase rotation value is a phase rotation value obtained by repeating a phase rotation value defined when the PPDU is transmitted in an 80 MHz band four times. The fourth phase rotation value is a phase rotation value defined for each 80 MHz band in the 320 MHz band based on an optimal PAPR of the L-STF.
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7.发明授权公开(公告)号：US11356160B2
公开(公告)日：2022-06-07
申请号：US16960011
申请日：2018-12-28
Applicant: LG ELECTRONICS INC.
Inventor： Sungjin Park , Jinmin Kim , Sunwoong Yun , Jinsoo Choi
IPC: H04L27/28 , H04B7/06 , H04B7/0417 , H04B7/0452 , H04B7/26 , H04W84/12
Abstract: Proposed are a method and an apparatus for transmitting a signal by performing MIMO beamforming in a wireless LAN system. Specifically, a first STA performs MIMO beamforming during a second STA and TDD-based SP. The first STA transmits a signal to the second STA on the basis of a result of the MIMO beamforming. The SP includes a plurality of TDD slots. The MIMO beamforming includes a first sub-step and a second sub-step. In the first sub-step, after receiving a first MIMO beamforming setup frame from the second STA, the first STA transmits a second MIMO beamforming setup frame in the first allocated TDD slot among the TDD slots allocated to the first STA. In the second sub-step, after receiving a first MIMO beamforming feedback frame from the second STA, the first STA transmits a second MIMO beamforming feedback frame in a first allocated TDD slot among the TDD slots allocated to the first STA.
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公开(公告)号：US20220140962A1
公开(公告)日：2022-05-05
申请号：US17429292
申请日：2020-02-12
Applicant: LG ELECTRONICS INC.
Inventor： Eunsung PARK , Jinsoo CHOI , Dongguk LIM , Jinmin KIM , Sunwoong Yun
IPC: H04L5/00
Abstract: Proposed are a method and an apparatus for receiving an EHT PPDU in a wireless LAN system. Specifically, a reception STA receives an EHT PPDU including an STF signal from a transmission STA through a 320 MHz band or a 160+160 MHz band. The reception STA decodes the EHT PPDU. The STF signal is generated on the basis of an EHT STF sequence for the 320 MHz band or the 160+160 MHz band. The EHT STF sequence for the 320 MHz band is a first sequence in which a preconfigured M sequence is repeated, and is defined as {M −1 −M −1 M −1 M 0 −M 1 −M 1 −M 1 M 0 −M 1 M 1 −M 1 −M 0 M −1 M −1 M −1 −M}*(1+j)/sqrt(2).
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公开(公告)号：US11290900B2
公开(公告)日：2022-03-29
申请号：US16866305
申请日：2020-05-04
Applicant: LG ELECTRONICS INC.
Inventor： Sungjin Park , Jinmin Kim , Sunwoong Yun , Jinsoo Choi
Abstract: The present specification discloses a method for transmitting and receiving channel measurement information in a wireless local area network (WLAN) system and a device for the same.
More specifically, the present specification describes a method for transmitting and receiving channel measurement information to support a time division duplex (TDD) scheduling scheme, which is a method for transmitting and receiving channel measurement information based on channel measurement per time unit different from that in a conventional method, and a device for the same.-
10.发明授权公开(公告)号：US10993125B2
公开(公告)日：2021-04-27
申请号：US16799553
申请日：2020-02-24
Applicant: LG ELECTRONICS INC.
Inventor： Sunwoong Yun , Jinmin Kim , Sungjin Park , Jinsoo Choi
Abstract: The present specification proposes a method for transmitting and receiving a signal, and an apparatus therefor, and more specifically, a method for transmitting, by a first station (STA), a signal to a second STA in a wireless LAN (WLAN) system, the method comprising the steps of: generating a training field including a basic training subfield for each spatial-temporal stream and a training subfield for each spatial-temporal stream on the basis of the total number of spatial-temporal streams, wherein the basic training subfield for each spatial-temporal stream is composed of M (M is a natural number) orthogonal frequency division multiplexing (OFDM) symbols on the basis of the information indicated by a header field; and transmitting a signal including the header field and the training field to the second STA through a corresponding spatial-temporal stream.
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