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公开(公告)号：US20170223731A1
公开(公告)日：2017-08-03
申请号：US15328858
申请日：2015-07-28
Applicant: LG ELECTRONICS INC.
Inventor： Wookbong LEE , Kiseon RYU , Jeongki KIM , Jinsoo CHOI , Hangyu CHO
CPC classification number: H04W74/006 , H04L5/0023 , H04L27/26 , H04W74/00 , H04W74/002 , H04W74/08 , H04W74/0808 , H04W74/0816 , H04W84/12
Abstract: An embodiment of the present invention relates to a method for performing a clear channel assessment (CCA) by STA in a wireless communication system, the method comprising the steps of: receiving a frame including a coloring bit; changing a CCA level to a first level when the coloring bit indicates a basic service set (BSS) to which the STA belongs, and changing a CCA level to a second level when the coloring bit indicates a BSS to which the STA does not belong; and performing the CCA according to the first level or the second level, wherein when the frame has an OFDM-based format, the frame includes a coloring disable bit, and when the coloring disable bit indicates that the frame is a multiuser transmission-related trigger frame, the STA does not perform a change of the CCA level without regard to information indicated by the coloring bit.
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92.发明申请公开(公告)号：US20170208546A1
公开(公告)日：2017-07-20
申请号：US15324667
申请日：2015-06-10
Applicant: LG ELECTRONICS INC.
Inventor： Giwon PARK , Kiseon RYU , Jeongki KIM , Hangyu CHO , Suhwook KIM
CPC classification number: H04W52/0216 , H04L1/1671 , H04L1/1867 , H04L5/0055 , H04L12/1886 , H04L27/2613 , H04W52/0229 , H04W52/0238 , H04W52/0245 , H04W72/042 , H04W74/06 , H04W84/12 , Y02D70/00 , Y02D70/142 , Y02D70/22
Abstract: Disclosed are a method and an apparatus for power save mode operation on the basis of a frame transmitted from another BSS in a wireless LAN. A method for operating an STA in a wireless LAN in a power save mode comprises: a step in which the STA receives a beacon frame from an AP, the beacon frame comprising a TIM element indicating downlink data pending in the STA; a step in which the STA transmits a PS-poll frame to the AP in response to the beacon frame; a step in which the STA receives, from the AP, an ACK frame transmitted by the AP in response to the PS-poll frame; and a step in which the STA determines the operation of the another BSS in a TXOP power save mode on the basis of the ACK frame.
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公开(公告)号：US20170195992A1
公开(公告)日：2017-07-06
申请号：US15315650
申请日：2015-06-01
Applicant: LG ELECTRONICS INC.
Inventor： Wookbong LEE , Kiseon RYU , Jinyoung CHUN , Hangyu CHO , Jinsoo CHOI , Dongguk LIM
CPC classification number: H04W72/005 , H04L5/0023 , H04L5/0053 , H04L5/0055 , H04L27/2657 , H04L27/2662 , H04L27/2675 , H04W56/0015 , H04W56/0065 , H04W72/0446 , H04W74/0816 , H04W84/12
Abstract: A method by which an STA transmits a multi-user (MU) frame in a wireless communication system, according to one embodiment of the present invention comprises the steps of: receiving, from an access point (AP), a second downlink frame including time synchronization information and frequency synchronization information; adjusting a time synchronization and a frequency synchronization by using the time synchronization information and the frequency synchronization information; receiving a third downlink frame including MU frame allocation information; and transmitting the MU frame according to the MU allocation information, wherein the time synchronization information is determined by comparing, to a reference value, a difference of measurement values relating to frames exchanged prior to the reception of the second downlink frame, and the reference value is a common value among STAs related to a multi-user transmission.
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公开(公告)号：US20170164409A1
公开(公告)日：2017-06-08
申请号：US15325427
申请日：2015-07-06
Applicant: LG ELECTRONICS INC.
Inventor： Jeongki KIM , Kiseon RYU , Giwon PARK , Hangyu CHO , Suhwook KIM
CPC classification number: H04W74/0833 , H04W72/0446 , H04W74/0825 , H04W84/12
Abstract: The present document relates to a backoff procedure and apparatus for efficiently accessing a broadband channel in a wireless LAN system. To this end, a station performs a clear channel assessment (CCA) operation in each of a plurality of channels, and when one or more of the plurality of channels is/are not used and the one or more channels is/are not used for frame transmission in the basic service set (BSS) of its/their station, the station is characterized in that it performs or re-performs a backoff procedure in the one or more channels. When a backoff counter value becomes zero according to the backoff procedure, the station may transmit a frame through the one or more channels.
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公开(公告)号：US20170149547A1
公开(公告)日：2017-05-25
申请号：US15319477
申请日：2015-01-28
Applicant: LG ELECTRONICS INC.
Inventor： Suhwook KIM , Kiseon RYU , Jinyoung CHUN , Wookbong LEE , Jinsoo CHOI , Hangyu CHO
CPC classification number: H04L5/0055 , H04B7/26 , H04B7/2678 , H04L1/1635 , H04L1/1685 , H04L1/18 , H04L1/1864 , H04L27/26 , H04W72/0493 , H04W84/12 , H04W88/08
Abstract: Disclosed are a method and an apparatus for receiving a frame. A method for receiving a frame in a wireless LAN comprises the steps of: an AP transmitting, to a plurality of STAs, a downlink PPDU including downlink data for each of the plurality of STAs, through a plurality of channels; and the AP receiving, from each of the plurality of STAs, a plurality of block ACK frames transmitted based on a block ACK transmission control field, wherein the downlink PPDU includes the block ACK transmission control field, and wherein each of the plurality of block ACK frames may include ACK information related to downlink data.
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Patent Agency Ranking
公开(公告)号：US20170086212A1
公开(公告)日：2017-03-23
申请号：US15310734
申请日：2015-06-08
Applicant: LG ELECTRONICS INC.
Inventor： Jeongki KIM , Kiseon RYU , Giwon PARK , Suhwook KIM , Hangyu CHO
CPC classification number: H04W72/12 , H04L1/1664 , H04L1/1887 , H04L5/0007 , H04L5/0044 , H04L5/0053 , H04L5/0055 , H04L5/0058 , H04L5/0092 , H04L27/2601 , H04W72/04 , H04W72/1268 , H04W84/12 , H04W88/08
Abstract: The present document relates to a method for efficiently performing uplink multi-user transmission in a wireless LAN system and an apparatus therefor. To this end, an access point (AP) may transmit a downlink multi-user frame to a plurality of STAs, receive an uplink frame including an acknowledgement/non-acknowledgement (ACK/NACK) signal for the downlink multi-user frame and an uplink scheduling request signal from at least two STAs among the STAs, transmit a downlink frame including uplink scheduling information to the at least two STAs on the basis of the uplink scheduling request signal, and receive an uplink multi-user frame including data from the at least two STAs in response thereto. Here, an SIG field of the downlink frame preferably comprises an indicator indicating that the downlink frame includes uplink multi-user scheduling information.
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97.发明申请METHOD AND APPARATUS FOR TRANSMITTING DATA UNIT IN WIRELESS LOCAL AREA NETWORK 审中-公开在无线局域网中传输数据单元的方法和装置公开(公告)号：US20170064711A1
公开(公告)日：2017-03-02
申请号：US15115637
申请日：2014-11-18
Applicant: LG ELECTRONICS INC.
Inventor： Jinsoo CHOI , Wookbong LEE , Hangyu CHO , Kiseon RYU , Jinyoung CHUN , Dongguk LIM
Abstract: Disclosed are a method and an apparatus for transmitting a data unit in a wireless local area network. A method for transmitting a data unit in a wireless local area network may comprise the steps of: an AP transmitting a first PPDU to a first STA by means of a first frequency resource in a time resource; and the AP transmitting a second PPDU to a second STA by means of a second frequency resource in a time resource overlapping the time resource, wherein the first frequency resource can be allocated to the first STA on the basis of the contentious or a non-contentious channel access of the first STA, and the second frequency resource can be allocated to the second STA on the basis of OFDMA.
Abstract translation: 公开了一种用于在无线局域网中发送数据单元的方法和装置。 一种用于在无线局域网中发送数据单元的方法可以包括以下步骤：AP通过时间资源中的第一频率资源向第一STA发送第一PPDU; 并且AP在与时间资源重叠的时间资源中借助于第二频率资源向第二STA发送第二PPDU，其中第一频率资源可以基于有争议的或非争议的方式分配给第一STA 可以基于OFDMA将第一STA的信道接入和第二频率资源分配给第二STA。
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98.发明申请公开(公告)号：US20170033898A1
公开(公告)日：2017-02-02
申请号：US15302922
申请日：2015-02-16
Applicant: LG ELECTRONICS INC.
Inventor： Jinyoung CHUN , Kiseon RYU , Wookbong LEE , Jinsoo CHOI , Dongguk LIM , Hangyu CHO , Suhwook KIM
IPC: H04L5/00
CPC classification number: H04L5/005 , H04B7/0417 , H04B7/0452 , H04W84/12
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.
Abstract translation: 公开了一种基于探测过程发送帧的方法和装置。 基于无线LAN中的探测过程发送帧的方法可以包括以下步骤：由AP发送NDPA帧到每个多个STA，其中NDPA帧通知NDP的传输; 由AP向多个STA中的每一个发送NDP; 由AP接收分别由多个STA重叠的时间源中分配给多个STA的多个发送源发送的多个反馈帧; 以及由所述AP将多个下行链路帧分别发送到所述多个STA。
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公开(公告)号：US20160380727A1
公开(公告)日：2016-12-29
申请号：US15125107
申请日：2014-11-06
Applicant: LG ELECTRONICS INC.
Inventor： Kiseon RYU , Wookbong LEE , Jinsoo CHOI , Jeongki KIM , Giwon PARK , Hangyu CHO , Suhwook KIM
CPC classification number: H04L1/1809 , H04L1/0088 , H04L1/1614 , H04L1/18 , H04L1/1819 , H04L1/1896 , H04L5/0023 , H04L5/0055 , H04L45/74 , H04W84/12 , H04W88/02 , H04W88/08
Abstract: Disclosed are a method and an apparatus for retransmission in a wireless LAN. The method for retransmission in a wireless LAN may comprise the steps in which: an STA receives an RTS frame from an AP; the STA transmits a CTS frame to the AP in response to the RTS frame; the STA receives an initial data frame from the AP after transmitting the CTS frame; if decoding on the initial data frame is impossible, the STA transmits a retransmission request frame to the AP; and the STA receives a retransmission data frame from the AP in response to the retransmission request frame.
Abstract translation: 公开了一种在无线LAN中进行重传的方法和装置。 无线LAN中的重传方法可以包括以下步骤：STA从AP接收RTS帧; STA响应于RTS帧向AP发送CTS帧; STA在发送CTS帧之后从AP接收初始数据帧; 如果在初始数据帧上的解码是不可能的，则STA向AP发送重传请求帧; 并且STA响应于重传请求帧从AP接收重传数据帧。
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公开(公告)号：US20160192397A1
公开(公告)日：2016-06-30
申请号：US14909047
申请日：2014-08-14
Applicant: LG ELECTRONICS INC.
Inventor： Jeongki KIM , Kiseon RYU , Giwon PARK , Hangyu CHO , Suhwook KIM
CPC classification number: H04W74/0816 , H04W74/004 , H04W74/006 , H04W84/12
Abstract: A method for transmitting data in wireless LAN may include the step of: receiving a non-target RTS frame from a second STA by a first STA, wherein the non-target RTS frame includes an RA field indicating a third STA; when the first STA does not receive a non-target CTS frame after a predetermined time and tries to transmit a data frame to an AP, transmitting an RTS frame to the AP by the first STA, wherein the non-target CTS frame is a response frame to the non-target RTS frame; and when the first STA has received a CTS frame in response to the RTS frame from the AP, transmitting the data frame to the AP by the first STA.
Abstract translation: 一种用于在无线LAN中发送数据的方法可以包括以下步骤：由第一STA从第二STA接收非目标RTS帧，其中非目标RTS帧包括指示第三STA的RA字段; 当第一STA在预定时间之后没有接收到非目标CTS帧并尝试向AP发送数据帧时，由第一STA向AP发送RTS帧，其中非目标CTS帧是响应 帧到非目标RTS帧; 并且当第一STA响应于来自AP的RTS帧接收到CTS帧时，由第一STA将数据帧发送到AP。
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