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1. 发明申请

US20110158220A1 MEDIA ACCESS CONTROL METHOD IN WIRELESS NETWORK 失效
标题翻译：无线网络中的媒体接入控制方法
公开(公告)号：US20110158220A1
公开(公告)日：2011-06-30
申请号：US12839967
申请日：2010-07-20
申请人： Chul Gyun PARK , Chul Hee KANG , Sang Heon PACK , Hyun Hee PARK , Joun Sup PARK
发明人： Chul Gyun PARK , Chul Hee KANG , Sang Heon PACK , Hyun Hee PARK , Joun Sup PARK
IPC分类号： H04J3/00
CPC分类号： H04J3/00 , H04W72/10 , H04W72/1257 , H04W72/1278 , H04W74/0816
摘要： A media access control method in a wireless network is provided. Each of devices in the wireless network determines one of a plurality of beacon slots within a beacon period as a beacon slot of the device. The devices in the wireless network determine a data transmission order in accordance with the slot numbers of the beacon slots of the devices in a reserved period of a data transmission period. Data is transmitted in the unreserved period in accordance with the determined data transmission order.
摘要翻译：提供了一种无线网络中的媒体访问控制方法。无线网络中的每个设备将信标周期内的多个信标时隙中的一个确定为设备的信标时隙。无线网络中的设备根据数据传输周期的预留时段中的设备的信标时隙的时隙号确定数据传输顺序。数据按照确定的数据传输顺序在未保留的周期内发送。

2. 发明申请

US20120076074A1 APPARATUS AND METHOD FOR ESTABLISHING CONTENTION WINDOW IN WIMEDIA WIRELESS NETWORK 有权
标题翻译：在WIMEDIA无线网络中建立窗口的设备和方法
公开(公告)号：US20120076074A1
公开(公告)日：2012-03-29
申请号：US13092497
申请日：2011-04-22
申请人： Joun Sup PARK , Chul Gyun PARK , Chul Hee KANG , Sang Heon PACK , Hyun Hee PARK
发明人： Joun Sup PARK , Chul Gyun PARK , Chul Hee KANG , Sang Heon PACK , Hyun Hee PARK
IPC分类号： H04W24/02
CPC分类号： H04W74/0833
摘要： There are provided an apparatus and a method for establishing a contention window in a WiMedia wireless network. The contention window establishing apparatus includes: a parsing unit extracting the number of devices that intend to transmit data from a beacon received during a beacon period and an access category (AC) of each device; a calculation unit calculating a transmission probability of each access category (AC) on the basis of the extracted number of devices; and a contention window establishing unit establishing a contention window for each access category (AC) on the basis of the calculated transmission probability, to reduce contentions among the devices and decrease data transmission latency time, thereby maximizing efficiency in data transmission latency time.
摘要翻译：提供了一种用于在WiMedia无线网络中建立争用窗口的装置和方法。争用窗口建立装置包括：解析单元，从在每个设备的信标周期期间接收的信标和每个设备的接入类别（AC）提取要发送数据的设备的数量; 计算单元，基于所提取的设备数量来计算每个接入类别（AC）的传输概率; 以及竞争窗口建立单元，基于计算出的传输概率为每个接入类别（AC）建立竞争窗口，以减少设备之间的竞争并减少数据传输等待时间，从而最大化数据传输等待时间的效率。

3. 发明申请

US20120250495A1 METHOD OF REDUCING RETRANSMISSION OF DATA FRAME AND RECEIVING NODE THEREFOR 有权
标题翻译：减少数据帧重传和接收节点的方法
公开(公告)号：US20120250495A1
公开(公告)日：2012-10-04
申请号：US13313439
申请日：2011-12-07
申请人： Joun Sup PARK , Chul Gyun PARK , Sang Heon PACK , Jae Duck KO
发明人： Joun Sup PARK , Chul Gyun PARK , Sang Heon PACK , Jae Duck KO
IPC分类号： H04L12/24 , H04L12/26
CPC分类号： H04L1/1819 , H04L1/1671 , H04L1/1864
摘要： A method of reducing a retransmission of a data frame and a receiving node therefor continuously receiving N data frames generated by encoding K source data packets by erasure coding. Errors in the received N data frames are checked, and an ACK message transmitted informing that the source data packets are capable of being restored, when the number (R) of data frames not containing errors is equal to or greater than the number (K) of source data packets. An ACK message including the number (X) of data frames for which retransmission is to be requested is transmitted when the number (R) of data frames not containing errors is less than the number (K) of source data packets, as a result of checking for errors in the received N data frames. Despite errors in some of the data frames, data may be restored without requesting the retransmission of data frames.
摘要翻译：一种减少数据帧和其接收节点的重传的方法，通过擦除编码连续接收通过编码K个源数据分组而产生的N个数据帧。检查所接收的N个数据帧中的错误，并且当不包含错误的数据帧的数量（R）等于或大于数量（K）时，发送通知源数据分组能够恢复的ACK消息，的源数据包。当不包含错误的数据帧的数量（R）小于源数据分组的数量（K）时，发送包括要请求重传的数据帧的数量（X）的ACK消息，作为检查接收到的N个数据帧中的错误。尽管在一些数据帧中存在错误，但是可以在不请求重发数据帧的情况下恢复数据。

4. 发明申请

US20120201314A1 APPARATUS AND METHOD FOR REDUCING PEAK TO AVERAGE POWER RATIO THROUGH RECOMBINATION OF ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYMBOL 有权
标题翻译：用于通过正交频分复用符号重构来降低峰值以平均功率比的装置和方法
公开(公告)号：US20120201314A1
公开(公告)日：2012-08-09
申请号：US13165569
申请日：2011-06-21
申请人： Joun Sup PARK , Chul Gyun Park , Young Chai Ko , Seung Sik Eum
发明人： Joun Sup PARK , Chul Gyun Park , Young Chai Ko , Seung Sik Eum
IPC分类号： H04L27/28
CPC分类号： H04L27/2621 , H04L27/2614
摘要： There are provided an apparatus and a method for reducing a peak to average power ratio (PAPR) through the recombination of an orthogonal frequency division multiplexing (OFDM) symbol. The apparatus includes an orthogonal frequency division multiplexing (OFDM) symbol transforming unit sequentially transforming an OFDM symbol in a time domain obtained through an inverse fast Fourier transform (IFFT) to generate a plurality of OFDM symbols; a peak power measuring unit measuring peak powers of each of the OFDM symbol and the plurality of OFDM symbols generated therefrom; and an OFDM symbol selecting unit selecting an OFDM symbol having a minimum value among the measured peak powers as a candidate OFDM symbol to be transmitted and transmitting the selected candidate OFDM symbol, wherein the OFDM symbol transforming unit generates the plurality of OFDM symbols by (a) performing a process of rotating the OFDM symbol by a predetermined angle in a complex plane and performing cyclical shifting with respect to the rotated OFDM symbol and (b) repetitively performing process (a) with respect to the cyclically shifted OFDM symbol. Therefore, diversity is secured, whereby the PAPR may be reduced.
摘要翻译：提供了通过正交频分复用（OFDM）符号的复合来降低峰均功率比（PAPR）的装置和方法。该装置包括正交频分复用（OFDM）符号变换单元，其顺序地变换通过快速傅里叶逆变换（IFFT）获得的时域中的OFDM符号，以生成多个OFDM符号; 峰值功率测量单元，测量每个所述OFDM符号和从其生成的所述多个OFDM符号的峰值功率; 以及OFDM符号选择单元，选择所测量的峰值功率中具有最小值的OFDM符号作为要发送的候选OFDM符号，并发送所选择的候选OFDM符号，其中，所述OFDM符号变换单元通过（a ）执行在复平面中旋转预定角度的OFDM符号并相对于旋转的OFDM符号执行循环移位的处理，以及（b）相对于循环移位OFDM符号重复执行处理（a）。因此，确保分集，由此可以减少PAPR。

5. 发明申请

US20110033015A1 MULTI-ANTENNA SYSTEM USING ADAPTIVE BEAMFORMING 有权
标题翻译：使用自适应光束的多天线系统
公开(公告)号：US20110033015A1
公开(公告)日：2011-02-10
申请号：US12640194
申请日：2009-12-17
申请人： Chul Gyun PARK , Young Chai KO , Kyung Tae JO , Joun Sup PARK
发明人： Chul Gyun PARK , Young Chai KO , Kyung Tae JO , Joun Sup PARK
IPC分类号： H04B7/10
CPC分类号： H04B7/084 , H04B17/336
摘要： A multi-antenna system using adaptive beamforming includes a phase shift unit, a signal combination unit, a frequency down-converter, and an analog-to-digital (A/D) converter, and a beamforming control unit. The phase shift unit includes a plurality of phase shifters which shift the phases of signals received from a plurality of antennas. The signal combination unit combines phase-shifted signals output from the plurality of phase shifters. The frequency down-converter down-converts a signal output from the signal combination unit into a baseband signal. The A/D converter converts the baseband signal into a digital signal. The beamforming control unit searches for a weight vector higher than a preset threshold signal-to-noise ratio (SNR) when a reception SNR of the digital signal output from the A/D converter is lower than the threshold SNR, and changes a currently set weight vector into the searched weight vector to provide to the phase shift unit.
摘要翻译：使用自适应波束形成的多天线系统包括相移单元，信号组合单元，下变频器和模数（A / D）转换器以及波束成形控制单元。相移单元包括多个移相器，其移位从多个天线接收的信号的相位。信号组合单元组合从多个移相器输出的相移信号。降频转换器将从信号组合单元输出的信号下变频为基带信号。 A / D转换器将基带信号转换为数字信号。当从A / D转换器输出的数字信号的接收SNR低于阈值SNR时，波束形成控制单元搜索高于预设阈值信噪比（SNR）的权重向量，并且改变当前设置加权向量到搜索到的权重向量中以提供给相移单元。

6. 发明申请

US20120072620A1 TERMINAL AND WIRELESS COMMUNICATION METHOD THEREOF 审中-公开
标题翻译：终端和无线通信方法
公开(公告)号：US20120072620A1
公开(公告)日：2012-03-22
申请号：US13038710
申请日：2011-03-02
申请人： Chan Yong JEONG , Shin Hwan HWANG , Chul Gyun PARK , Dong Woon CHANG , Joun Sup PARK
发明人： Chan Yong JEONG , Shin Hwan HWANG , Chul Gyun PARK , Dong Woon CHANG , Joun Sup PARK
IPC分类号： G06F3/14
CPC分类号： G09G5/006 , G06F1/1654 , G06F1/1698 , G09G3/2096 , G09G2370/16
摘要： There are provided a terminal capable of selecting a suitable wireless module among a plurality of wireless modules depending on a situation and providing an optimal image even in a state in which a display unit is separated from a main body by performing wireless communication, and a wireless communication method thereof. To enable this, the terminal includes a main body generating and transmitting image data in response to an external input; a display unit mountable on or demountable from the main body, receiving the image data from the main body and displaying an image corresponding to the image data; and a wireless communication unit provided in each of the main body and the display unit, switching a wireless communication frequency band on the basis of a transmission rate of the image data and transmitting the image data to the display unit.
摘要翻译：提供一种终端，其能够根据情况选择多个无线模块中的合适的无线模块，并且即使在通过执行无线通信的显示单元与主体分离的状态下也提供最佳图像，以及无线通信方法。为了实现这一点，终端包括响应于外部输入生成和发送图像数据的主体; 显示单元可安装在主体上或可从主体拆卸，从主体接收图像数据并显示对应于图像数据的图像; 以及设置在主体和显示单元的每一个中的无线通信单元，基于图像数据的传输速率切换无线通信频带并将图像数据发送到显示单元。

7. 发明申请

US20110126077A1 COOPERATIVE TRANSMISSION METHOD AND COMMUNICATION SYSTEM USING THE SAME 有权
标题翻译：合作传输方法和使用该协议的通信系统
公开(公告)号：US20110126077A1
公开(公告)日：2011-05-26
申请号：US12840459
申请日：2010-07-21
申请人： Chul Gyun PARK , In Duk HAN , Won Jin LEE , Jun HEO , Joun Sup PARK
发明人： Chul Gyun PARK , In Duk HAN , Won Jin LEE , Jun HEO , Joun Sup PARK
IPC分类号： H03M13/29 , G06F11/10
CPC分类号： H04L1/0077 , H04L1/0057 , H04L1/0059 , H04L2001/0097
摘要： A cooperative transmission method includes: a first operation of coding, by a source node, a message desired to be transmitted according to a first encoding scheme to generate a first codeword and transmitting the first codeword to a relay node and a destination node; a second operation of decoding, by the relay node, the first codeword which has been received from the source node, coding the decoded message according to a second coding scheme to generate a second codeword, coding a part corresponding to parity of the second codeword according to the first coding scheme to generate a third codeword, and transmitting the third codeword to the destination node; and a third operation of decoding, by the destination node, the first codeword which has been received from the source node and the third codeword which has been received from the relay node, combining the message generated by decoding the first codeword and the parity part of the second codeword generated by decoding the third codeword to generate a fourth codeword according to the second coding scheme, and decoding the fourth codeword to estimate the message desired to be transmitted.
摘要翻译：协作传输方法包括：由源节点根据第一编码方案对期望发送的消息进行编码以产生第一码字并将第一码字发送到中继节点和目的地节点的第一操作; 由中继节点对从源节点接收到的第一码字进行解码的第二操作，根据第二编码方案对解码的消息进行编码，以生成第二码字，根据第二码字编码对应于第二码字的奇偶校验的部分，到第一编码方案以产生第三码字，并将第三码字发送到目的地节点; 以及由目的地节点对从所述源节点接收的所述第一码字和从所述中继节点接收到的所述第三码字进行解码的第三操作，将通过解码所述第一码字而生成的消息与所述第一码字的奇偶校验部分通过解码第三码字产生的第二码字，以根据第二编码方案产生第四码字，以及解码第四码字以估计期望发送的消息。

8. 发明申请

US20120200459A1 BEAM FORMING METHOD AND MULTIPLE ANTENNA SYSTEM USING THE SAME 有权
标题翻译：波束形成方法和使用该方法的多个天线系统
公开(公告)号：US20120200459A1
公开(公告)日：2012-08-09
申请号：US13165266
申请日：2011-06-21
申请人： Joun Sup PARK , Chul Gyun Park , Young Chai Ko , Hyun Ho Lee
发明人： Joun Sup PARK , Chul Gyun Park , Young Chai Ko , Hyun Ho Lee
IPC分类号： H01Q3/00
CPC分类号： H04B7/0617 , H04B7/0634 , H04B7/0639 , H04L5/0023 , H04L5/0048
摘要： Disclosed are a beam forming method and a multiple antenna system using the same. There is provided a multiple antenna system which forms optimal beam patterns through a transmission of a training sequence between a transmitter and a receiver, each including a plurality of antennas, the multiple antenna system comprising: a transmitter selecting antennas to be activated according to a level and transmitting the training sequence to a receiver through the selected antennas; a receiver selecting the antennas to be activated according to the level and transmitting to the transmitter an index of an optimal transmission weight vector significantly reducing a cost function based on the training sequence transmitted from the transmitter, wherein the transmitter selects antennas so that the beam patterns formed by the antennas selected at a q-th level (q: the index of the level) include the beam patterns formed by the antennas selected at a q+1-th level. As a result, the transmission frequency of the training sequence may be reduced.
摘要翻译：公开了一种波束形成方法和使用该波束形成方法的多天线系统。提供了一种多天线系统，其通过发射机和接收机之间的训练序列的传输形成最佳波束图案，每个天线系统包括多个天线，所述多天线系统包括：发射机，根据等级来选择要激活的天线并通过所选择的天线将训练序列发射到接收机; 接收机根据电平选择要激活的天线，并且基于从发射机发送的训练序列向发射机发送最佳传输权重向量的索引，其显着地降低成本函数，其中发射机选择天线，使得波束模式由在第q级选择的天线（q：电平的索引）形成的天线包括由在q + 1级选择的天线形成的波束图案。结果，可以减少训练序列的发送频率。

9. 发明申请

US20110032150A1 BEAMFORMING APPARATUS AND METHOD FOR MULTI-ANTENNA SYSTEM 有权
标题翻译：用于多天线系统的波束形成装置和方法
公开(公告)号：US20110032150A1
公开(公告)日：2011-02-10
申请号：US12850233
申请日：2010-08-04
申请人： Chul Gyun PARK , Young Chai KO , Kyung Tae JO , Joun Sup PARK
发明人： Chul Gyun PARK , Young Chai KO , Kyung Tae JO , Joun Sup PARK
IPC分类号： H01Q3/00
CPC分类号： H01Q3/2605
摘要： A beamforming apparatus for a multi-antenna system includes a phase control unit including a plurality of phase shifters which respectively control the phases of signals according to a preset phase weight vector; a signal combination unit combining the signals outputted from the plurality of phase shifters; a frequency down converter down-converting the combined signal outputted from the signal combination unit into a baseband signal; an analog/digital (A/D) converter converting the baseband signal into a digital signal; and a radio frequency (RF) beamforming control unit providing a plurality of preset phase weight vectors to the phase control unit according to a preset application sequence, deciding a maximum signal-to-noise ratio (SNR) among a plurality of SNRs corresponding to the applied phase weight vectors by using the digital signal outputted from the A/D converter, and controlling the beamforming of the phase control unit by using the maximum SNR.
摘要翻译：一种用于多天线系统的波束成形装置，包括：相位控制单元，包括：多个移相器，分别根据预置的相位权矢量来控制信号的相位; 信号组合单元，组合从所述多个移相器输出的信号; 降频转换器将从信号组合单元输出的组合信号下变频为基带信号; 将基带信号转换为数字信号的模拟/数字（A / D）转换器; 以及射频（RF）波束形成控制单元，其根据预设的应用序列向所述相位控制单元提供多个预设相位加权矢量，从而确定与所述相关控制单元对应的多个SNR中的最大信噪比（SNR）通过使用从A / D转换器输出的数字信号来施加相位权重向量，并且通过使用最大SNR来控制相位控制单元的波束形成。

10. 发明申请

US20130128802A1 MULTI-RELAY TRANSMISSION APPARATUS AND METHOD USING INTERFERENCE ALIGNMENT 审中-公开
标题翻译：多中继传输装置和使用干扰对准的方法
公开(公告)号：US20130128802A1
公开(公告)日：2013-05-23
申请号：US13364083
申请日：2012-02-01
申请人： Joun Sup PARK , Young Chai Ko , Seong Ho Park
发明人： Joun Sup PARK , Young Chai Ko , Seong Ho Park
IPC分类号： H04B15/00 , H04W88/04
CPC分类号： H04B7/15592 , H04W84/047
摘要： There are provided a multi-relay transmission apparatus and method. The multi-relay transmission apparatus includes: a source node repeatedly alternately performing a first phase in which preceding data is transmitted during a first transmission period equivalent to a transmission period during which unit frames are transmitted and a second phase in which subsequent data that follows the preceding data is transmitted during a second transmission period that follows the first transmission period; and a relay network including a plurality of relay nodes receiving data from the source node, in which, in the first phase, a predetermined relay node, among the plurality of relay nodes, receives the preceding data from the source node and the remaining relay nodes, among the plurality of relay nodes, and in the second phase, the remaining relay nodes receive the subsequent data from the source node.
摘要翻译：提供了一种多中继传输装置和方法。多中继传输装置包括：源节点重复地交替执行第一阶段，其中在与发送单元帧的传输周期相当的第一传输周期期间发送先前的数据，以及第二阶段，其中后续数据在在第一传输周期之后的第二传输周期期间发送前一数据; 以及包括从所述源节点接收数据的多个中继节点的中继网络，其中，在所述第一阶段中，所述多个中继节点中的预定中继节点从所述源节点和所述剩余中继节点接收所述先前数据在多个中继节点中，并且在第二阶段中，剩余的中继节点从源节点接收后续数据。

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