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公开(公告)号：US09942857B2
公开(公告)日：2018-04-10
申请号：US15034855
申请日：2014-11-21
Applicant: LG ELECTRONICS INC.
Inventor： Dongguk Lim , Jinyoung Chun , Wookbong Lee , Jinsoo Choi , Hangyu Cho
CPC classification number: H04W52/228 , H04W52/242 , H04W52/243 , H04W84/12
Abstract: The present document relates to a method for transmitting and receiving signals by controlling interference on other wireless devices based on actual transmitted power or received power information in a wireless communication system, and an apparatus therefor. To this end, STA 1 receives from STA 2 a frame comprising power information about actual transmitted power or actual received power of STA 2. Through the frame, STA 1 determines transmitted power by correcting the existing transmitted power of STA 1 by using the power information of STA 2 and, when the determined transmitted power of STA 1 is less than or equal to a reference value, transmits signals through the frame.
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公开(公告)号：US09924552B2
公开(公告)日：2018-03-20
申请号：US14759175
申请日：2013-11-06
Applicant: LG ELECTRONICS INC.
Inventor： Byungjoo Lee , Dongcheol Kim , Jinho Kim , Wookbong Lee , Hangyu Cho
Abstract: The present invention relates to a wireless communication system and, more particularly, to a method and apparatus for changing services in a direct communication system. A method for setting up a session in a first wireless device supporting a Wi-Fi direct service, according to one embodiment of the present invention, can include the steps of: setting up a connection between a first wireless device and a second wireless device, which includes a provision discovery process between the first wireless device and the second wireless device for creating a session for a first service; and transmitting a request_session message from the first wireless device to the second wireless device for creating a session for a second service. Session information for the second service can be included in the request_session message.
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公开(公告)号：US09924551B2
公开(公告)日：2018-03-20
申请号：US14442381
申请日：2013-11-08
Applicant: LG ELECTRONICS INC.
Inventor： Wookbong Lee , Byungjoo Lee , Jinho Kim , Dongcheol Kim , Hangyu Cho
CPC classification number: H04W76/14 , H04L67/1044 , H04L67/146 , H04W8/005 , H04W84/12
Abstract: The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for transmitting, if an advertiser device is set to delay a session with respect to the request for a session from a seeker device, session delay information to the seeker device in a method for setting Wi-Fi direct service communication and to an apparatus therefor.
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84.发明授权公开(公告)号：US09860755B2
公开(公告)日：2018-01-02
申请号：US14401203
申请日：2013-04-01
Applicant: LG Electronics Inc.
Inventor： Wookbong Lee , Jinsam Kwak , Suhwook Kim , Jinsoo Choi
CPC classification number: H04W16/14 , H04W72/0453 , H04W84/12
Abstract: The present invention relates to a method for setting operating channels in a white space region and to an apparatus therefor. In particular, the method for a device to set operating channels in a white space region includes the steps of: obtaining information on available TV channels from a geolocation database; and setting operating channels including multiple bandwidths in a plurality of consecutive TV channels, wherein the central frequencies of signals that are transmitted over two consecutive TV channels included in the plurality of consecutive TV channels, respectively, can be moved by as much as a first offset (m) and a second offset (n) in the direction of the center of the two consecutive TV channels, respectively.
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85.发明授权公开(公告)号：US09843632B2
公开(公告)日：2017-12-12
申请号：US15370787
申请日：2016-12-06
Applicant: LG ELECTRONICS INC.
Inventor： Byungjoo Lee , Dongcheol Kim , Jinho Kim , Wookbong Lee , Hangyu Cho
IPC: H04W4/00 , H04L29/08 , H04W4/08 , H04W8/00 , H04W76/02 , H04W84/12 , H04W72/04 , H04W84/18 , H04W92/18
CPC classification number: H04L67/1046 , H04L67/1044 , H04L67/1051 , H04W4/08 , H04W8/005 , H04W72/048 , H04W76/14 , H04W84/12 , H04W84/18 , H04W92/18
Abstract: The present invention relates to a wireless communication system, and a method for peer to peer (P2P) group formation is disclosed. To this end, the method for P2P group formation may include transmitting, from a first wireless device to a second wireless device, a provision discovery request frame including connection capabilities of the first wireless device, and receiving, at the first wireless device, from the second wireless device, a provision discovery response frame including connection capabilities of the second wireless device. Here, the connection capabilities may include indicating at least one of: New in order to initiate a new group, Group Owner in order to become a group owner, and Client in order to become a client; and the first wireless device determines the group owner of a P2P group on the basis of the first connection capability and the second connection capability.
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Patent Agency Ranking
86.发明授权Method for feeding back codebook-based precoding matrix information in wireless communication system and device therefor 有权用于在无线通信系统及其设备中反馈基于码本的预编码矩阵信息的方法公开(公告)号：US09077402B2
公开(公告)日：2015-07-07
申请号：US14355553
申请日：2012-11-07
Applicant: LG ELECTRONICS INC.
Inventor： Wookbong Lee , Jaehoon Chung , Jinsam Kwak , Hyunsoo Ko
CPC classification number: H04B7/0417 , H04B7/046 , H04B7/0469 , H04B7/0478 , H04B7/0639 , H04B7/065 , H04L1/0028 , H04L1/06 , H04L25/0204
Abstract: A method for feeding back codebook-based precoding matrix information by a receiving side includes estimating a channel through a receiving signal received from a transmitting side; selecting first and second precoding matrix indexes for indicating precoding matrices selected in a predefined codebook based upon said estimated channel; and transmitting said selected first and second precoding matrix indexes to said transmitting side, wherein said predefined codebook supports antenna patterns at the receiving side, precoder (W) in the predefined codebook is expressed as a multiplication of two precoding matrices (W1 and W2), W1 is constituted as an oversampled discrete Fourier transform (DFT) matrix by a diagonal matrix, an element which reflects a factor in accordance with an antenna pattern configuration of said receiving side is included, and said first precoding matrix index indicates a precoding matrix selected from W1 and said second precoding matrix index indicates a precoding matrix selected from W2.
Abstract translation: 一种用于由接收侧反馈基于码本的预编码矩阵信息的方法包括：通过从发送侧接收的接收信号来估计信道; 基于所述估计的信道，选择用于指示在预定码本中选择的预编码矩阵的第一和第二预编码矩阵索引; 以及将所述选择的第一和第二预编码矩阵索引发送到所述发送侧，其中所述预定码本支持接收侧的天线方向图，预定码本中的预编码器（W）表示为两个预编码矩阵（W1和W2）的乘法， W1被对角矩阵构成为过采样离散傅立叶变换（DFT）矩阵，包括反映根据所述接收侧的天线方向图配置的因子的元素，并且所述第一预编码矩阵索引表示从 W1和所述第二预编码矩阵索引指示从W2选择的预编码矩阵。
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87.发明申请METHOD AND APPARATUS FOR DETERMINING OPERATING CHANNEL IN WIRELESS COMMUNICATION SYSTEM 有权用于确定无线通信系统中操作信道的方法和装置公开(公告)号：US20150078287A1
公开(公告)日：2015-03-19
申请号：US14396443
申请日：2013-04-25
Applicant: LG Electronics Inc.
Inventor： Suhwook Kim , Wookbong Lee , Jinsam Kwak
CPC classification number: H04W72/0453 , H04W16/14 , H04W84/12
Abstract: The present invention relates to a wireless communication system and, more specifically, to a method and an apparatus for determining an operating channel. The method for determining the operating channel of a station (STA) in a TV whitespace (TVWS) wireless LAN system, according to one embodiment of the present invention, comprises the steps of: receiving information on an index which indicates an operating class including channel start frequency, channel spacing, and channel set parameters; and determining a main frequency of the operating channel on the basis of the parameters indicated by the index of the operating class. The main frequency of the operating channel can be determined on the basis of a correction value which is set differently according to the configuration of a basic channel unit of the operating channel.
Abstract translation: 无线通信系统技术领域本发明涉及一种无线通信系统，更具体地，涉及用于确定操作信道的方法和装置。 根据本发明的一个实施例，用于确定电视空白（TVWS）无线LAN系统中的台站（STA）的操作信道的方法包括以下步骤：接收关于指示包括频道的操作类别的索引的信息 起始频率，信道间隔和信道设置参数; 并且基于由所述操作类别的索引指示的参数来确定所述操作信道的主频率。 可以基于根据操作信道的基本信道单元的配置而不同地设置的校正值来确定操作信道的主频率。
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88.发明申请METHOD FOR FEEDING BACK CODEBOOK-BASED PRECODING MATRIX INFORMATION IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR 有权在无线通信系统中提取基于代码的基于预编码矩阵信息的方法及其设备公开(公告)号：US20140341312A1
公开(公告)日：2014-11-20
申请号：US14355553
申请日：2012-11-07
Applicant: LG ELECTRONICS INC.
Inventor： Wookbong Lee , Jaehoon Chung , Jinsam Kwak , Hyunsoo Ko
IPC: H04B7/04
CPC classification number: H04B7/0417 , H04B7/046 , H04B7/0469 , H04B7/0478 , H04B7/0639 , H04B7/065 , H04L1/0028 , H04L1/06 , H04L25/0204
Abstract: A method for feeding back codebook-based precoding matrix information by a receiving side includes estimating a channel through a receiving signal received from a transmitting side; selecting first and second precoding matrix indexes for indicating precoding matrices selected in a predefined codebook based upon said estimated channel; and transmitting said selected first and second precoding matrix indexes to said transmitting side, wherein said predefined codebook supports antenna patterns at the receiving side, precoder (W) in the predefined codebook is expressed as a multiplication of two precoding matrices (W1 and W2), W1 is constituted as an oversampled discrete Fourier transform (DFT) matrix by a diagonal matrix, an element which reflects a factor in accordance with an antenna pattern configuration of said receiving side is included, and said first precoding matrix index indicates a precoding matrix selected from W1 and said second precoding matrix index indicates a precoding matrix selected from W2.
Abstract translation: 一种用于由接收侧反馈基于码本的预编码矩阵信息的方法包括：通过从发送侧接收的接收信号来估计信道; 基于所述估计的信道，选择用于指示在预定码本中选择的预编码矩阵的第一和第二预编码矩阵索引; 以及将所述选择的第一和第二预编码矩阵索引发送到所述发送侧，其中所述预定码本支持接收侧的天线方向图，预定码本中的预编码器（W）表示为两个预编码矩阵（W1和W2）的乘法， W1被对角矩阵构成为过采样离散傅立叶变换（DFT）矩阵，包括反映根据所述接收侧的天线方向图配置的因子的元素，并且所述第一预编码矩阵索引表示从 W1和所述第二预编码矩阵索引指示从W2选择的预编码矩阵。
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公开(公告)号：US20140045514A1
公开(公告)日：2014-02-13
申请号：US13965338
申请日：2013-08-13
Applicant: LG Electronics Inc.
Inventor： Wookbong Lee , Jeongki Kim , Jinsam Kwak , Giwon Park , Yongho Seok , Jinyoung Chun , Jinsoo Choi
IPC: H04W16/14
CPC classification number: H04W16/14
Abstract: A wireless communication system is disclosed. Specifically, a channelization method in a whitespace band and an apparatus for the same are disclosed. A method for providing whitespace operation information includes transmitting, by a first station (STA) to a second STA, a frame including a TV whitespace high throughput (TVHT) operation information field. The TVHT operation information field includes primary channel number, channel width, channel center frequency segment 0 and channel center frequency segment 1 subfields. A channel center frequency of frequency segment 0 or frequency segment 1 is determined based on a channel start frequency. The channel start frequency is determined as a function of a TV channel index corresponding to the frequency segment 0 or a TV channel index corresponding to the frequency segment 1.
Abstract translation: 公开了一种无线通信系统。 具体地，公开了空白频带中的信道化方法及其装置。 一种用于提供空白操作信息的方法包括由第一站（STA）向第二STA发送包括TV空白高吞吐量（TVHT）操作信息字段的帧。 TVHT操作信息字段包括主信道号，信道宽度，信道中心频段0和信道中心频段1子字段。 基于频道起始频率来确定频段0或频段1的频道中心频率。 通道开始频率根据对应于频段0的TV频道索引或对应于频段1的TV频道索引确定。
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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
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.
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