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1. 发明授权

US09906390B2 Method and apparatus for generating/transmitting a frame for wireless communication, and synchronization estimation method for wireless communication 有权
公开(公告)号：US09906390B2
公开(公告)日：2018-02-27
申请号：US13392468
申请日：2010-08-23
申请人： Kapseok Chang , Wooyong Lee , Hyun-Kyu Chung
发明人： Kapseok Chang , Wooyong Lee , Hyun-Kyu Chung
IPC分类号： H04L27/00 , H04L27/26 , H04W56/00 , H04W72/04 , H04W84/12
摘要： Disclosed is a technique related to a method and apparatus for generating a preamble and a data frame for wireless communication, and to a synchronization estimation method using the preamble. According to the technique, a method for generating a frame for wireless communication is disclosed, wherein the method comprises: a step of generating a modified sequence using a first base sequence for synchronization estimation; and a step of allocating the first base sequence and the modified sequence to the frequency domain of a first timeslot to generate a preamble. The modified sequence includes a complex conjugated sequence of the first base sequence or a sequence having a code different from that of the first base sequence.

2. 发明申请

US20160056331A1 NANOSTRUCTURE SEMICONDUCTOR LIGHT EMITTING DEVICE 有权
公开(公告)号：US20160056331A1
公开(公告)日：2016-02-25
申请号：US14833832
申请日：2015-08-24
申请人： Jung Sub KIM , Yeon Woo SEO , Dong Gun LEE , Byung Kyu CHUNG , Dae Myung CHUN , Soo Jeong CHOI
发明人： Jung Sub KIM , Yeon Woo SEO , Dong Gun LEE , Byung Kyu CHUNG , Dae Myung CHUN , Soo Jeong CHOI
IPC分类号： H01L33/06 , H01L33/24 , H01L33/32 , H01L33/08
CPC分类号： H01L33/007 , B82Y20/00 , F21K9/232 , F21Y2115/10 , H01L33/06 , H01L33/08 , H01L33/24 , H01L33/32 , H01L33/52 , H01L2224/48091 , H01L2224/48247 , H01L2224/48257 , H01L2933/0033 , H01L2933/005 , H01L2933/0058 , H01L2924/00014
摘要： A nanostructure semiconductor light emitting device includes: a base layer formed of a first-conductivity type nitride semiconductor material; and a plurality of light emitting nanostructures disposed on the base layer to be spaced apart from each other, wherein each of the plurality of light emitting nanostructures includes: a nanocore formed of a first conductivity-type nitride semiconductor material, an active layer disposed on a surface of the nanocore and including a quantum well which is divided into first and second regions having different indium (In) composition ratios in a thickness direction thereof; and a second conductivity-type semiconductor layer disposed on the active layer, and an In composition ratio in the first region is higher than an In composition ratio in the second region.

3. 发明授权

US09154349B2 Wireless transmitter for high mobility and high throughput and mode control method thereof 有权
标题翻译：用于高移动性和高吞吐量的无线发射机及其模式控制方法
公开(公告)号：US09154349B2
公开(公告)日：2015-10-06
申请号：US12912653
申请日：2010-10-26
申请人： Il-Gu Lee , Sok-Kyu Lee , Hyun-Kyu Chung
发明人： Il-Gu Lee , Sok-Kyu Lee , Hyun-Kyu Chung
IPC分类号： H04L27/18 , H04L7/00 , H04W8/26
CPC分类号： H04L27/18 , H04L7/00 , H04W8/26 , H04W52/0225 , Y02D70/1244 , Y02D70/14 , Y02D70/142
摘要： A wireless transmitter which performs reconfiguration for high mobility and high throughput includes: an operation mode decision unit configured to decide an operation mode depending on mobility, a required data rate, and wireless link performance; a clock generation unit configured to generate a plurality of clock signals; a selection unit configured to select necessary clock signals among the plurality of clock signals generated by the clock generation unit according to the operation mode decided by the operation mode decision unit; and at least one or more digital modulation units configured to modulate transmitted data by adjusting a signal bandwidth of a frequency domain and a transmission time of a time domain using the clock signals selected by the selection unit.
摘要翻译：执行高移动性和高吞吐量的重新配置的无线发射机包括：操作模式判定单元，被配置为根据移动性，所需数据速率和无线链路性能来决定操作模式; 时钟生成单元，被配置为生成多个时钟信号; 选择单元，被配置为根据由所述操作模式判定单元决定的操作模式，在由所述时钟生成单元生成的所述多个时钟信号中选择必要的时钟信号; 以及至少一个或多个数字调制单元，被配置为通过使用由选择单元选择的时钟信号调整频域的信号带宽和时域的发送时间来调制发送数据。

4. 发明授权

US09048933B2 Radio-frequency transceiving front-end apparatus using passive elements in wireless communication system 有权
标题翻译：无线通信系统中使用无源元件的射频收发前端设备
公开(公告)号：US09048933B2
公开(公告)日：2015-06-02
申请号：US13619967
申请日：2012-09-14
申请人： Heon Kook Kwon , Myung Don Kim , Jae Joon Park , Hyun Kyu Chung
发明人： Heon Kook Kwon , Myung Don Kim , Jae Joon Park , Hyun Kyu Chung
IPC分类号： H04L5/00 , H04J1/00 , H04J3/00 , H04B1/58
CPC分类号： H04B1/525 , H04B1/58
摘要： Disclosed is a radio-frequency front-end apparatus that can be used in wireless communication systems performing transmission/reception by using a single antenna. The radio-frequency transceiving front-end apparatus using passive elements in a wireless communication system includes: a transmitting unit's hybrid coupler configured to divide and output a transmission signal into two outputs having a phase difference of 90°; a first circulator configured to receive a first output of the hybrid coupler through a first terminal thereof and output the received first output through a second terminal thereof; a second circulator configured to receive a second output of the hybrid coupler through a first terminal thereof and output the received second output through a second terminal thereof; and an output unit's hybrid coupler configured to receive transmission signals from the second terminal of the first circulator and the second terminal of the second circulator, and combine and output the received signals.
摘要翻译：公开了可以用于通过使用单个天线执行发送/接收的无线通信系统中的射频前端装置。在无线通信系统中使用无源元件的射频收发前端装置包括：发送单元的混合耦合器，被配置为将发送信号分频并输出为具有90°的相位差的两个输出; 第一循环器，被配置为通过其第一端接收所述混合耦合器的第一输出，并通过其第二端输出所接收的第一输出; 第二循环器，被配置为通过其第一端接收所述混合耦合器的第二输出，并通过其第二端输出所接收的第二输出; 以及输出单元的混合耦合器，被配置为从第一循环器的第二端子和第二循环器的第二端子接收传输信号，并且组合并输出接收的信号。

5. 发明授权

US08831043B2 Method and system for operating cooperative receiving diversity scheme and selective cooperative relaying 有权
标题翻译：操作协同接收分集方案和选择性协同中继的方法和系统
公开(公告)号：US08831043B2
公开(公告)日：2014-09-09
申请号：US12745520
申请日：2008-06-19
申请人： Bangwon Seo , Heesoo Lee , Jae Young Ahn , Hyun Kyu Chung , Chung Gu Kang , Hyun Seok Ryu , Jung Jae Yu
发明人： Bangwon Seo , Heesoo Lee , Jae Young Ahn , Hyun Kyu Chung , Chung Gu Kang , Hyun Seok Ryu , Jung Jae Yu
IPC分类号： H04J1/00 , H04B7/02
CPC分类号： H04B7/026
摘要： A selective cooperative relaying method, the method including: determining, by a base station, whether a mobile station for which the base station provides a service is the mobile station necessary for direct transmission or is the mobile station necessary for cooperative relaying via a relay station; and selecting, by a base station, mobile stations using a simple relaying scheme, a cooperative transmission diversity scheme, or a cooperative receiving diversity scheme from mobile stations necessary for the cooperative relaying via the relay station.
摘要翻译：一种选择性协同中继方法，所述方法包括：基站确定基站提供业务的移动台是直接发送所需要的移动台，还是经由中继站进行合作中继所需的移动台 ; 以及由基站使用简单中继方案，协作传输分集方案或协作接收分集方案从移动台选择经由中继站的协作中继所需的移动台。

6. 发明授权

US08761111B2 Method and apparatus for allocating sequence to synchronization channel for node identification in wireless communication system 有权
标题翻译：用于在无线通信系统中为节点识别的同步信道分配序列的方法和装置
公开(公告)号：US08761111B2
公开(公告)日：2014-06-24
申请号：US13596296
申请日：2012-08-28
申请人： Kapseok Chang , Young-Hoon Kim , Woo Yong Lee , Hyun Kyu Chung
发明人： Kapseok Chang , Young-Hoon Kim , Woo Yong Lee , Hyun Kyu Chung
IPC分类号： H04W4/00
CPC分类号： H04L5/0007 , H04B7/14 , H04L5/0032 , H04L5/0037 , H04L5/0048 , H04L25/03866 , H04L27/2613 , H04L27/2655
摘要： Provided is an apparatus for allocating a sequence to a synchronization channel for a node identification (ID), the apparatus including: a base node sequence generator to generate a base sequence that is a sequence for a node ID of a base node; a relay node sequence generator to generate a relay sequence that is a sequence for a node ID of a relay node by transforming the base sequence; a baseband signal generator to generate a baseband signal by mapping the base sequence or the relay sequence to a frequency domain and a time domain; and a transmitter to transmit the baseband signal.
摘要翻译：提供了一种用于将序列分配给用于节点标识（ID）的同步信道的装置，所述装置包括：基本节点序列生成器，用于生成作为基本节点的节点ID的序列的基本序列; 中继节点序列发生器，用于通过转换所述基本序列来产生作为中继节点的节点ID的序列的中继序列; 基带信号发生器，用于通过将基本序列或中继序列映射到频域和时域来产生基带信号; 以及用于发送基带信号的发射机。

7. 发明授权

US08750885B2 Interference mitigation method in cellular system based on orthogonal frequency division multiple access 失效
标题翻译：基于正交频分多址的蜂窝系统中的干扰抑制方法
公开(公告)号：US08750885B2
公开(公告)日：2014-06-10
申请号：US12866103
申请日：2009-02-04
申请人： Jae Young Ahn , Hyun Kyu Chung
发明人： Jae Young Ahn , Hyun Kyu Chung
IPC分类号： H04W40/00 , H04W12/02
CPC分类号： H04W12/02 , H04B7/06 , H04L5/0016 , H04L5/0023 , H04L5/0026 , H04L5/0062 , H04L5/0073 , H04W52/367
摘要： An inter-cell interference mitigation method in an orthogonal frequency division multiple access (OFDM)-based cellular system includes: dividing wireless resources into a resource group for fractional frequency reuse and a resource group for removing inter-cell interference; and re-dividing the resource group for fractional frequency reuse into particular resource groups numbering the same as a number of cell types of fractional frequency reuse, and applying a maximum transmission power to a particular resource group according to a cell type for fractional frequency reuse.
摘要翻译：在基于正交频分多址（OFDM）的蜂窝系统中的小区间干扰减轻方法包括：将无线资源划分为用于小数频率重用的资源组和用于去除小区间干扰的资源组; 并将分数频率重用的资源组重新划分为与分数次频率重用的小区类型的数量相同的特定资源组，以及根据用于分数频率重用的小区类型向特定资源组应用最大发射功率。

8. 发明授权

US08743796B2 Method and apparatus for allocating sequence to synchronization channel for node identification in wireless communication system 有权
公开(公告)号：US08743796B2
公开(公告)日：2014-06-03
申请号：US12641679
申请日：2009-12-18
申请人： Kapseok Chang , Young-Hoon Kim , Woo Yong Lee , Hyun Kyu Chung
发明人： Kapseok Chang , Young-Hoon Kim , Woo Yong Lee , Hyun Kyu Chung
IPC分类号： H04W4/00
CPC分类号： H04L5/0007 , H04B7/14 , H04L5/0032 , H04L5/0037 , H04L5/0048 , H04L25/03866 , H04L27/2613 , H04L27/2655
摘要： Provided is an apparatus for allocating a sequence to a synchronization channel for a node identification (ID), the apparatus including: a base node sequence generator to generate a base sequence that is a sequence for a node ID of a base node; a relay node sequence generator to generate a relay sequence that is a sequence for a node ID of a relay node by transforming the base sequence; a baseband signal generator to generate a baseband signal by mapping the base sequence or the relay sequence to a frequency domain and a time domain; and a transmitter to transmit the baseband signal.

9. 发明授权

US08705488B2 Method for supporting idle mode in wireless local area network system 失效
标题翻译：支持无线局域网系统空闲模式的方法
公开(公告)号：US08705488B2
公开(公告)日：2014-04-22
申请号：US12817504
申请日：2010-06-17
申请人： Sung-Geun Jin , Hyun Kyu Chung
发明人： Sung-Geun Jin , Hyun Kyu Chung
IPC分类号： H04W4/00 , H04W36/00
CPC分类号： H04W60/00 , H04W48/20 , H04W84/12 , Y02D70/14
摘要： Disclosed is a method for supporting an idle mode of a terminal in a wireless local area network (WLAN) system. In the method, a first request message for starting an idle mode is transmitted to a first access node to which the terminal is currently connected and a first response message with respect to the first request message is received from the first access node, and in this case, when the first response message includes acceptance information with respect to the start of the idle mode, the idle mode starts.
摘要翻译：公开了一种在无线局域网（WLAN）系统中支持终端的空闲模式的方法。在该方法中，用于开始空闲模式的第一请求消息被发送到终端当前连接到的第一接入节点，并且从第一接入节点接收到关于第一请求消息的第一响应消息，并且在该情况下，当第一响应消息包括关于空闲模式的开始的接受信息时，空闲模式开始。

10. 发明授权

US08606175B2 RF relay of full-duplex and method for removing interference of EM level thereof 失效
标题翻译：全双工射频继电器及其EM电平干扰的方法
公开(公告)号：US08606175B2
公开(公告)日：2013-12-10
申请号：US12956504
申请日：2010-11-30
申请人： Byung-Jae Kwak , Joon Ho Cho , Hyun Kyu Chung , Young Yun Kang
发明人： Byung-Jae Kwak , Joon Ho Cho , Hyun Kyu Chung , Young Yun Kang
IPC分类号： H04B1/60
CPC分类号： H04B7/0617 , H04B7/0434
摘要： A RF relay of a full-duplex generates a conversion matrix to belong to a null space of a channel matrix of an interference channel, generates a transmitting signal by converting a received signal using the conversion matrix, and then outputs the transmitting signal to a transmitting antenna. Therefore, an interference signal of an electromagnetic wave level (EM level) that can be generated while the transmitting signal passes through the interference channel can be canceled.
摘要翻译：全双工的RF中继产生属于干扰信道的信道矩阵的零空间的转换矩阵，通过使用转换矩阵转换接收信号来生成发送信号，然后将发送信号输出到发送天线。因此，可以消除在发送信号通过干扰信道时可以产生的电磁波电平（EM电平）的干扰信号。

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