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101.发明授权公开(公告)号：US11039441B2
公开(公告)日：2021-06-15
申请号：US16712662
申请日：2019-12-12
Applicant: LG ELECTRONICS INC.
Inventor： Jinsoo Choi , Hangyu Cho , Wookbong Lee
Abstract: Disclosed is a method and apparatus for allocating a wireless resource in order to prevent interference in a wireless LAN. A method for allocating a wireless resource in a wireless LAN may comprise the steps of: allocating, by an AP, a plurality of wireless resources for a plurality of STAs included in a BSS, in the entire bandwidth, respectively; and transmitting, by the AP, a PPDU to the plurality of STAs through the plurality of wireless resources, respectively, wherein each of the plurality of wireless resources is a combination of a plurality of wireless units defined in different sizes on a frequency axis, and each of the plurality of wireless resources can be determined in consideration of the size of the bandwidth of at least one STA supporting a bandwidth smaller than the size of the entire bandwidth from among the plurality of STAs.
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公开(公告)号：US11019507B2
公开(公告)日：2021-05-25
申请号：US16091514
申请日：2017-03-03
Applicant: LG ELECTRONICS INC.
Inventor： Hyunhee Park , Kiseon Ryu , Suhwook Kim , Jeongki Kim , Hangyu Cho
Abstract: Disclosed is a signal processing method for changing an operating mode for transmitting a PPDU in a wireless LAN system. Specifically, a first station transmits, to a second station, the number of spatial streams supported by the first station, and a first instructional information instructing a change of the operating mode indicating a channel bandwidth. The first station applies the first instructional information after receiving an ACK therefor. The first instructional information comprises an operating mode indicator for indicating whether the operating mode is a receive operating mode (ROM) or a transmit operating mode (TOM).
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103.发明授权公开(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
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.
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104.发明授权公开(公告)号：US10939377B2
公开(公告)日：2021-03-02
申请号：US16870328
申请日：2020-05-08
Applicant: LG Electronics Inc.
Inventor： Eunsung Park , Jinsoo Choi , Hangyu Cho
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. A portion of the STF signal is used to transmit an uplink, and can be used for uplink MU PPDUs transmitted from a plurality of STAs. The STF signal that is disclosed, for example, is used for a 40 MHz band or an 80 MHz band, is desirably usable for the 40 MHz band, and can be generated based on a sequence in which a predetermined M sequence is repeated. The predetermined M sequence can be a binary sequence of which the length is 15 bits.
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105.发明授权公开(公告)号：US10939376B2
公开(公告)日：2021-03-02
申请号：US16870325
申请日：2020-05-08
Applicant: LG Electronics Inc.
Inventor： Eunsung Park , Jinsoo Choi , Hangyu Cho
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. A portion of the STF signal is used to transmit an uplink, and can be used for uplink MU PPDUs transmitted from a plurality of STAs. The STF signal that is disclosed, for example, is used for a 40 MHz band or an 80 MHz band, is desirably usable for the 40 MHz band, and can be generated based on a sequence in which a predetermined M sequence is repeated. The predetermined M sequence can be a binary sequence of which the length is 15 bits.
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Patent Agency Ranking
106.发明授权公开(公告)号：US10925000B2
公开(公告)日：2021-02-16
申请号：US16464662
申请日：2017-11-28
Applicant: LG ELECTRONICS INC.
Inventor： Sunwoong Yun , Eunsung Park , Dongguk Lim , Hangyu Cho , Jinsoo Choi
Abstract: A method for transmitting a wake-up radio (WUR) packet by an access point (AP) in a wireless LAN (WLAN) system according to an embodiment of the present invention comprises the steps of: generating a WUR packet including a legacy preamble and a plurality of on-symbols; and transmitting the WUR packet to a station (STA), wherein a subcarrier sequence for generating the plurality of on-symbols may be determined on the basis of a legacy training field sequence that configures the legacy preamble.
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公开(公告)号：US10924955B2
公开(公告)日：2021-02-16
申请号：US16461345
申请日：2017-11-15
Applicant: LG ELECTRONICS INC.
Inventor： Dongguk Lim , Eunsung Park , Sunwoong Yun , Hangyu Cho , Jinsoo Choi
Abstract: A method for reporting channel information by a station (STA) in a wireless LAN (WLAN) system according to an embodiment of the present invention comprises the steps of: receiving a null data packet announcement (NDP-A) frame from a first access point (AP); when it is determined that the NDP-A frame is for joint transmission of a plurality of APs, measuring a channel for a first AP having transmitted the NDP-A frame and a channel for at least one second AP channel which has not transmitted the NDP-A frame; and transmitting channel information for the plurality of APs, which has been acquired according to a result of the channel measurement, to the first AP, wherein when the NDP-A frame is for the joint transmission, the STA can acquire channel information relating to the plurality of APs through a plurality of NDP frames received from the plurality of APs after receiving the NDP-A frame one time.
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公开(公告)号：US10917209B2
公开(公告)日：2021-02-09
申请号：US16739787
申请日：2020-01-10
Applicant: LG ELECTRONICS INC.
Inventor： Dongguk Lim , Eunsung Park , Hangyu Cho , Jinsoo Choi
Abstract: A method for transmitting data by a first station (STA) in a wireless local area network (WLAN) system is disclosed. The method includes configuring, as a radio frame for transmission of the data, a high efficiency extended range single user physical protocol data unit (HE ER SU PPDU) in which a high efficiency signal A (HE-SIG-A) field is repeated, and transmitting the configured HE ER SU PPDU to a second STA in a resource unit (RU) of one of a first type and a second type, the first type having a size of 106 tones and the second type having a size of 242 tones. If the HE ER SU PPDU is transmitted in an RU of the first type, the HE ER SU PPDU is transmitted in an RU of the first type at a fixed position in a primary 20-MHz channel.
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109.发明授权公开(公告)号：US10911193B2
公开(公告)日：2021-02-02
申请号：US15329227
申请日：2015-10-15
Applicant: LG ELECTRONICS INC.
Inventor： Eunsung Park , Wookbong Lee , Jinsoo Choi , Hangyu Cho , Jiwon Kang , Kilbom Lee
IPC: H04L5/00 , H04L27/26 , H04B7/0452 , H04W84/12
Abstract: The present invention relates to a method for transmitting and receiving a Physical Protocol Data Unit (PPDU) and an apparatus for supporting the same. Particularly, a method for transmitting a Physical Protocol Data Unit (PPDU) performed by an apparatus in a wireless communication system may include generating a High Efficiency-Short Training Field (HE-STF) sequence in a frequency domain throughout a transmission bandwidth of the PPDU and transmitting the PPDU that includes an HE-STF field which is constructed based on the HE-STF sequence, wherein the HE-STF sequence may be mapped to a data tone except a direct current tone and a guard tone, and wherein a non-zero value may be mapped to all data tones that include a tone index which is a multiple of a predetermined value in the data tone.
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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
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.
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