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。

公开(公告)号：US08675750B2

公开(公告)日：2014-03-18

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, a peak power measuring unit, and an OFDM symbol selecting unit, 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，峰值功率测量单元和OFDM符号选择单元，其中，OFDM符号变换单元通过以下步骤生成多个OFDM符号：（a）执行使 OFDM符号在复平面中以预定角度执行并且相对于旋转的OFDM符号执行循环移位，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。

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。

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。

公开(公告)号：US08553600B2

公开(公告)日：2013-10-08

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： H04B7/00

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。

公开(公告)号：US08509197B2

公开(公告)日：2013-08-13

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 ,  H04W72/10

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。

公开(公告)号：US20130084904A1

公开(公告)日：2013-04-04

申请号：US13331631

申请日：2011-12-20

申请人： Joun Sup Park ,  Myeong Woo Han

发明人： Joun Sup Park ,  Myeong Woo Han

IPC分类号： H04W84/12

CPC分类号： H04W28/22

摘要： There are provided an apparatus and a method for super high-speed wireless communications. The apparatus includes a signal processor transmitting data to be transmitted through a predetermined super high-speed communications network when the super high-speed communications network is connected and transmitting data to be transmitted through a predetermined high-speed communications network when the super high-speed communications network is disconnected; a super high-speed wireless communications unit converting the data transmitted from the signal processor to a super high-speed wireless signal suitable for transmission through the super high-speed communications network; and a high-speed wireless communications unit converting the data transmitted from the signal processor to a high-speed wireless signal suitable for transmission through the high-speed communications network.

摘要翻译： 提供了一种用于超高速无线通信的装置和方法。 该装置包括信号处理器，当超高速通信网络连接时，通过预定的超高速通信网络发送要发送的数据，并且当超高速通信网络超高速通信网络发送要通过预定的高速通信网络发送的数据时 通信网络断开; 超高速无线通信单元将从信号处理器发送的数据转换为适合于通过超高速通信网络传输的超高速无线信号; 以及高速无线通信单元，将从信号处理器发送的数据转换成适合于通过高速通信网络传输的高速无线信号。

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。

公开(公告)号：US08849345B2

公开(公告)日：2014-09-30

申请号：US13331631

申请日：2011-12-20

申请人： Joun Sup Park ,  Myeong Woo Han

发明人： Joun Sup Park ,  Myeong Woo Han

IPC分类号： H04B7/00 ,  H04M1/00 ,  H04W28/22

CPC分类号： H04W28/22

摘要： There are provided an apparatus and a method for super high-speed wireless communications. The apparatus includes a signal processor transmitting data to be transmitted through a predetermined super high-speed communications network when the super high-speed communications network is connected and transmitting data to be transmitted through a predetermined high-speed communications network when the super high-speed communications network is disconnected; a super high-speed wireless communications unit converting the data transmitted from the signal processor to a super high-speed wireless signal suitable for transmission through the super high-speed communications network; and a high-speed wireless communications unit converting the data transmitted from the signal processor to a high-speed wireless signal suitable for transmission through the high-speed communications network.

摘要翻译： 提供了一种用于超高速无线通信的装置和方法。 该装置包括信号处理器，当超高速通信网络连接时，通过预定的超高速通信网络发送要发送的数据，并且当超高速通信网络超高速通信网络发送要通过预定的高速通信网络发送的数据时 通信网络断开; 超高速无线通信单元将从信号处理器发送的数据转换为适合于通过超高速通信网络传输的超高速无线信号; 以及高速无线通信单元，将从信号处理器发送的数据转换成适合于通过高速通信网络传输的高速无线信号。

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。