公开(公告)号：US09319902B2

公开(公告)日：2016-04-19

申请号：US14420611

申请日：2013-08-09

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki Kim ,  Yongho Seok ,  Jinsam Kwak ,  Jinsoo Choi

IPC: H04W4/00 ,  H04W24/02 ,  H04W76/02 ,  H04W84/12 ,  H04W88/08

CPC classification number: H04W24/02 ,  H04W76/19 ,  H04W84/12 ,  H04W88/08

Abstract: The invention relates to a method for receiving a downlink signal from an access point (AP) by a station (STA) in a wireless communication system, comprising the steps of: transmitting an uplink frame; and receiving a response frame as a response to the uplink frame. A terminal performs a re-association with the AP when it is recognized, via the response frame, that the AP has been restarted.

Abstract translation: 本发明涉及一种在无线通信系统中由站（STA）从接入点（AP）接收下行链路信号的方法，包括以下步骤：发送上行链路帧; 以及接收响应帧作为对所述上行链路帧的响应。 当通过响应帧识别出AP被重新启动时，终端与AP进行重新关联。

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

IPC: H04B7/04 ,  H04L1/06 ,  H04B7/06 ,  H04L1/00 ,  H04L25/02

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。

公开(公告)号：US20150139209A1

公开(公告)日：2015-05-21

申请号：US14406444

申请日：2013-06-18

Applicant: LG ELECTRONICS INC.

Inventor： Giwon Park ,  Kiseon Ryu ,  Jinsam Kwak

IPC: H04W74/08

CPC classification number: H04W74/0875 ,  H04W28/18 ,  H04W48/12 ,  H04W48/20 ,  H04W74/08 ,  H04W76/00 ,  H04W84/12

Abstract: Disclosed are a method and an apparatus for initial access distribution over a wireless LAN. A method for an initial access by a station (STA) comprises: a step in which the STA receives a fast initial link setup (FILS) backoff parameter from an access point (AP); and a step in which the STA implements a backoff procedure by using the final FILS backoff parameter determined on the basis of the FILS backoff parameter and an access category of the data to be transmitted by the STA. Accordingly, the initial access of the STA can be distributed.

Abstract translation: 公开了一种用于通过无线LAN初始访问分配的方法和装置。 一种用于站（STA）的初始接入的方法包括：STA从接入点（AP）接收快速初始链路建立（FILS）退避参数的步骤; 以及STA通过使用基于FILS退避参数确定的最终FILS退避参数和要由STA发送的数据的访问类别来实现退避过程的步骤。 因此，可以分发STA的初始接入。

公开(公告)号：US20150103767A1

公开(公告)日：2015-04-16

申请号：US14390330

申请日：2013-06-27

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki Kim ,  Yongho Seok ,  Jinsam Kwak ,  Jinso Choi

IPC: H04W74/06 ,  H04W52/02

CPC classification number: H04W52/0216 ,  H04W74/008 ,  H04W74/06 ,  H04W84/12 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/168 ,  Y02D70/21 ,  Y02D70/22

Abstract: Disclosed is a method for a station (STA) for accessing a channel in a wireless communication system. The method for a STA for accessing a channel in a wireless communication system comprises the steps of: receiving a beacon frame comprising a traffic indicator map (TIM); and transmitting a power save (PS)-Poll frame if buffered traffic is indicated by TIM to the STA, wherein the PS-Poll frame is transmitted during a PS-Poll dedicated restricted access window (RAW) by and/or during an additional RAW, the PS-Poll dedicated RAW being allocated to transmit the PS-Poll frame, and the additional RAW being additionally allocated subsequent to the PS-Poll-dedicated RAW.

Abstract translation: 公开了一种用于在无线通信系统中访问信道的站（STA）的方法。 用于在无线通信系统中访问信道的STA的方法包括以下步骤：接收包括业务指示符映射（TIM）的信标帧; 以及如果缓存的业务由TIM指示给STA，则发送功率节省（PS）-Poll帧，其中PS-Poll帧在PS-Poll专用限制访问窗口（RAW）期间和/或期间附加RAW PS-Poll专用RAW被分配以发送PS-Poll帧，并且额外分配在PS-Poll专用RAW之后的附加RAW。

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

IPC: H04W72/04 ,  H04W84/12

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。

公开(公告)号：US20150063232A1

公开(公告)日：2015-03-05

申请号：US14378596

申请日：2013-02-18

Applicant: LG Electronics Inc.

Inventor： Jinsoo Choi ,  Yongho Seok ,  Jinsam Kwak ,  Jeongki Kim

IPC: H04W28/02

CPC classification number: H04W28/0278 ,  H04W4/70 ,  H04W28/0263 ,  H04W72/1289

Abstract: The present invention relates to a method for transmitting and receiving a traffic indication map in a wireless communication system, and to an apparatus for same. More particularly, the method includes a step of transmitting a traffic indication map (TIM) to a station (STA) through a beacon frame, wherein the TIM can include a bitmap field configured of one or more sub-block bitmaps for indicating whether buffered downlink data exists for an STA which is grouped to one or more sub-blocks, and a block control field indicating an encoding scheme of the bitmap field.

Abstract translation: 本发明涉及一种在无线通信系统中发送和接收业务指示图的方法及其装置。 更具体地，该方法包括通过信标帧向站（STA）发送业务指示映射（TIM）的步骤，其中，所述TIM可以包括由一个或多个子块位图配置的位图字段，用于指示是否缓冲的下行链路 对于分组为一个或多个子块的STA存在数据，以及指示位图字段的编码方案的块控制字段。

公开(公告)号：US20150043409A1

公开(公告)日：2015-02-12

申请号：US14395306

申请日：2013-04-18

Applicant: LG Electronics Inc.

Inventor： Jinsoo Choi ,  Seunghee Han ,  Jinsam Kwak ,  Yongho Seok ,  Jeongki Kim

IPC: H04W52/02

CPC classification number: H04W52/0225 ,  H04W52/0216 ,  H04W52/0229 ,  Y02B70/30 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/21 ,  Y02D70/22

Abstract: One embodiment of the present invention relates to a method for transmitting a signal of a station (STA) operable in a power saving mode in a wireless communication system, and the method for transmitting a signal comprises a step of transmitting a PS-Poll frame and/or a trigger frame according to a first time period, wherein an integrated scaling factor is applied to the first time period, and the integrated scaling factor is also commonly applied to a second time period in which the STA can omit frame transmission by maintaining an association state with an access point (AP).

Abstract translation: 本发明的一个实施例涉及一种用于在无线通信系统中以省电模式操作的站（STA）的信号发送方法，并且用于发送信号的方法包括发送PS-Poll帧和 /或根据第一时间段的触发帧，其中在第一时间段应用积分缩放因子，并且综合缩放因子也通常应用于STA可以通过维持一个或多个第二时间段来省略帧传输的第二时间段 与接入点（AP）的关联状态。

公开(公告)号：US20150009978A1

公开(公告)日：2015-01-08

申请号：US14378117

申请日：2013-01-29

Applicant: LG ELECTRONICS INC

Inventor： Jinsoo Choi ,  Seunghee Han ,  Jinsam Kwak ,  Yongho Seok ,  Jeongki Kim

IPC: H04L27/26 ,  H04L25/03

CPC classification number: H04L27/2613 ,  H04L25/0226 ,  H04L25/03866 ,  H04W84/12 ,  H04W88/08

Abstract: Provided is a method for transmitting a data unit performed by a transmitter in a wireless LAN system. The method comprises: generating a data unit, wherein the data unit includes a data field which contains data to be transmitted by a transmitter; generating at least one data symbol for the data field; and transmitting the at least one data symbol, wherein two pilot tones are inserted into each data symbol, and pilot values and scrambling values are applied to the pilot tones.

Abstract translation: 提供一种用于在无线LAN系统中发送由发射机执行的数据单元的方法。 该方法包括：产生数据单元，其中数据单元包括包含要由发射机发送的数据的数据字段; 为数据字段生成至少一个数据符号; 以及发送所述至少一个数据符号，其中两个导频音被插入到每个数据符号中，并且导频值和加扰值被应用于导频音调。

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。

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。