会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 33. 发明授权
    • Beam forming method and multiple antenna system using the same
    • 光束形成方法和使用相同的多天线系统
    • US08583055B2
    • 2013-11-12
    • US13165266
    • 2011-06-21
    • Joun Sup ParkChul Gyun ParkYoung Chai KoHyun Ho Lee
    • Joun Sup ParkChul Gyun ParkYoung Chai KoHyun Ho Lee
    • H04B1/00H04B7/00
    • H04B7/0617H04B7/0634H04B7/0639H04L5/0023H04L5/0048
    • 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.
    • 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。
    • 34. 发明授权
    • Multi-antenna system using adaptive beamforming
    • 多天线系统采用自适应波束成形技术
    • US08401133B2
    • 2013-03-19
    • US12640194
    • 2009-12-17
    • Chul Gyun ParkYoung Chai KoKyung Tae JoJoun Sup Park
    • Chul Gyun ParkYoung Chai KoKyung Tae JoJoun Sup Park
    • H04B7/10
    • H04B7/084H04B17/336
    • 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.
    • 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。
    • 35. 发明授权
    • Cooperative transmission method and communication system using the same
    • 合作传输方式和通信系统使用相同
    • US08359519B2
    • 2013-01-22
    • US12840459
    • 2010-07-21
    • Chul Gyun ParkIn Duk HanWon Jin LeeJun HeoJoun Sup Park
    • Chul Gyun ParkIn Duk HanWon Jin LeeJun HeoJoun Sup Park
    • H03M13/00
    • H04L1/0077H04L1/0057H04L1/0059H04L2001/0097
    • 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.
    • 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。
    • 37. 发明申请
    • BEAM FORMING METHOD AND MULTIPLE ANTENNA SYSTEM USING THE SAME
    • 波束形成方法和使用该方法的多个天线系统
    • US20120200459A1
    • 2012-08-09
    • US13165266
    • 2011-06-21
    • Joun Sup PARKChul Gyun ParkYoung Chai KoHyun Ho Lee
    • Joun Sup PARKChul Gyun ParkYoung Chai KoHyun Ho Lee
    • H01Q3/00
    • H04B7/0617H04B7/0634H04B7/0639H04L5/0023H04L5/0048
    • 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.
    • 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。