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1. 发明申请

US20130016600A1 NETWORK APPARATUS AND METHOD OF RETRANSMITTING FRAME USING THE SAME 审中-公开
标题翻译：网络装置和使用该方法重新帧的框架
公开(公告)号：US20130016600A1
公开(公告)日：2013-01-17
申请号：US13288760
申请日：2011-11-03
申请人： Sung Ho HWANG , Joun Sup Park , Ki Hong Kim , Chul Gyun Park , Tae Won Song , Sang Heon Pack
发明人： Sung Ho HWANG , Joun Sup Park , Ki Hong Kim , Chul Gyun Park , Tae Won Song , Sang Heon Pack
IPC分类号： H04L12/26
CPC分类号： H04L12/1868 , H04L1/1883 , H04L1/1887 , H04L1/189 , H04L2001/0093 , H04L2001/0097
摘要： There is provided a network apparatus capable of effectively retransmitting a frame in a frame aggregation environment, and a method of retransmitting a frame using the same. The network apparatus includes: a transmitting node broadcasting a plurality of data frames in a frame aggregation environment; a receiving node receiving the plurality of broadcast data frames and broadcasting a reception result; and at least one relay node receiving and storing at least a portion of the plurality of broadcast data frames and transmitting, together with the transmitting node, a data frame for which retransmission is required to the receiving node according to a calculated transmission success rate when the reception result from the receiving node is a retransmission request.
摘要翻译：提供一种能够有效地重发帧聚合环境中的帧的网络装置，以及使用该帧的帧的重传方法。网络装置包括：发送节点，在帧聚合环境中广播多个数据帧; 接收节点接收多个广播数据帧并广播接收结果; 以及至少一个中继节点，接收并存储所述多个广播数据帧的至少一部分，并且与所述发送节点一起，根据计算出的传输成功率，向所述接收节点发送需要重传的数据帧来自接收节点的接收结果是重传请求。

2. 发明授权

US08553600B2 Apparatus and method for establishing contention window in wimedia wireless network 有权
标题翻译：用于在无线网络中建立争用窗口的装置和方法
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。

3. 发明授权

US08509197B2 Media access control method of determining data transmission order in wireless network 失效
标题翻译：确定无线网络数据传输顺序的媒体访问控制方法
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。

4. 发明授权

US08942084B2 Method of reducing retransmission of data frame and receiving node therefor 有权
标题翻译：减少数据帧和接收节点的重传的方法
公开(公告)号：US08942084B2
公开(公告)日：2015-01-27
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： H04J3/14 , H04L1/18 , H04L1/16
CPC分类号： H04L1/1819 , H04L1/1671 , H04L1/1864
摘要： A method includes continuously receiving N data frames encoded from K source data packets by an erasure coding method; checking for errors in the received N data frames; and transmitting an acknowledge (ACK) message 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, and transmitting an ACK message including the number (X) of data frames for which retransmission is to be requested when the number (R) of data frames not containing errors is less than the number (K) of source data packets, as a result of the checking.
摘要翻译：一种方法包括：通过擦除编码方法连续接收从K个源数据分组编码的N个数据帧; 检查接收到的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）等于或大于源数据分组的数量（K）时，发送通知源数据分组能够被恢复的确认（ACK）消息，并且发送作为检查的结果，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，包括要请求重传的数据帧的数量（X）的ACK消息。

5. 发明授权

US08675750B2 Apparatus and method for reducing peak to average power ratio through recombination of orthogonal frequency division multiplexing symbol 有权
标题翻译：通过正交频分复用符号复合降低峰均功率比的装置和方法
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。

6. 发明申请

US20120146425A1 WIRELESS POWER TRANSMISSION/RECEPTION APPARATUS AND METHOD 有权
标题翻译：无线电力传输/接收装置和方法
公开(公告)号：US20120146425A1
公开(公告)日：2012-06-14
申请号：US13037001
申请日：2011-02-28
申请人： Kwang Du Lee , Jeong Hoon Kim , Joun Sup Park , Eung Ju Kim , Sang Hoon Hwang , Young Seok Yoon , Chul Gyun Park , Jung Ho Yoon
发明人： Kwang Du Lee , Jeong Hoon Kim , Joun Sup Park , Eung Ju Kim , Sang Hoon Hwang , Young Seok Yoon , Chul Gyun Park , Jung Ho Yoon
IPC分类号： H01F38/14
CPC分类号： H02J50/12 , H02J5/005 , H02J7/025 , H02J50/20 , H04B5/0025 , H04B5/0037 , H04B5/0056 , H04B5/0075 , H04B5/0093
摘要： Disclosed herein is a wireless power transmission/reception apparatus. The wireless power transmission/reception apparatus includes a wireless power transmission unit configured to generate a wireless power signal to be transmitted, transmit the wireless power signal using magnetic resonance, receive a reflected wireless power signal from a wireless power reception unit, determine whether a load device is present, and transmit a wireless power signal if it is determined that the load device is present in such a way that impedance and output power depending on variation in a distance to the load device are automatically tracked, and wireless power is supplied to the load device in an optimized state. A wireless to power reception unit is connected to the load device, and configured to receive the wireless power signal, provide the wireless power signal to the load device, and reflect a reflected wireless power signal towards the wireless power transmission unit.
摘要翻译：这里公开了一种无线电力发送/接收装置。无线电力发送/接收装置包括无线电力传输单元，被配置为生成要发送的无线电力信号，使用磁共振发送无线电力信号，从无线电力接收单元接收反射的无线电力信号，确定负载并且如果确定负载设备存在的方式发送无线电力信号，使得根据与负载设备的距离的变化的阻抗和输出功率被自动跟踪，并且将无线电力提供给负载设备处于优化状态。无线到电力接收单元连接到负载设备，并且被配置为接收无线电力信号，向负载设备提供无线电力信号，并将反射的无线电力信号反射到无线电力传输单元。

7. 发明授权

US07965234B2 Beamforming apparatus and method for multi-antenna system 有权
标题翻译：多天线系统波束成形装置及方法
公开(公告)号：US07965234B2
公开(公告)日：2011-06-21
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。

8. 发明授权

US08803365B2 Wireless power transmission/reception apparatus and method 有权
标题翻译：无线电力发送/接收装置和方法
公开(公告)号：US08803365B2
公开(公告)日：2014-08-12
申请号：US13037001
申请日：2011-02-28
申请人： Kwang Du Lee , Jeong Hoon Kim , Joun Sup Park , Eung Ju Kim , Sang Hoon Hwang , Young Seok Yoon , Chul Gyun Park , Jung Ho Yoon
发明人： Kwang Du Lee , Jeong Hoon Kim , Joun Sup Park , Eung Ju Kim , Sang Hoon Hwang , Young Seok Yoon , Chul Gyun Park , Jung Ho Yoon
IPC分类号： H04B5/00
CPC分类号： H02J50/12 , H02J5/005 , H02J7/025 , H02J50/20 , H04B5/0025 , H04B5/0037 , H04B5/0056 , H04B5/0075 , H04B5/0093
摘要： A wireless power transmission/reception apparatus includes a wireless power transmission unit. The transmission unit is configured to generate a wireless power signal to be transmitted, transmit the wireless power signal using magnetic resonance, receive a reflected wireless power signal from a wireless power reception unit, determine whether a load device is present, and transmit a further wireless power signal when it is determined that the load device is present in such a way that impedance and output power depending on variation in a distance to the load device are tracked, and wireless power is supplied to the load device in an optimized state. Accordingly, a separate transceiver module is not provided for the purpose of performing communication between a transmitting end and a receiving end, and a reception environment is automatically detected, thus enabling wireless power to be transmitted in an optimal wireless power transmission state.
摘要翻译：无线电力发送/接收装置包括无线电力传输单元。发送单元被配置为生成要发送的无线电力信号，使用磁共振发送无线电力信号，从无线电力接收单元接收反射的无线电力信号，确定是否存在负载设备，并且发送另外的无线当确定负载装置以这样一种方式存在时，根据与负载装置的距离的变化被跟踪的阻抗和输出功率被跟踪，并且在优化状态下向负载装置提供无线电力。因此，为了进行发送端与接收端之间的通信，没有设置单独的收发信机模块，并且自动检测接收环境，从而能够以最佳的无线电力传输状态发送无线电力。

9. 发明授权

US08583055B2 Beam forming method and multiple antenna system using the same 有权
标题翻译：光束形成方法和使用相同的多天线系统
公开(公告)号：US08583055B2
公开(公告)日：2013-11-12
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： H04B1/00 , H04B7/00
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。

10. 发明授权

US08401133B2 Multi-antenna system using adaptive beamforming 有权
标题翻译：多天线系统采用自适应波束成形技术
公开(公告)号：US08401133B2
公开(公告)日：2013-03-19
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。

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