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1. 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。

2. 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。

3. 发明申请

US20130022143A1 BEAMFORMING APPARATUS AND METHOD IN MULTI-ANTENNA SYSTEM 有权
标题翻译：多天线系统中的波束形成装置和方法
公开(公告)号：US20130022143A1
公开(公告)日：2013-01-24
申请号：US13469591
申请日：2012-05-11
申请人： Young Chai KO , Hyun Ho LEE
发明人： Young Chai KO , Hyun Ho LEE
IPC分类号： H04L27/28 , H04B15/00 , H04J11/00
CPC分类号： H04B7/0417 , H04B7/0634 , H04L27/2601 , H04L2025/03802
摘要： The present invention relates to a symbol-wise beamforming apparatus and method in an OFDM communication system using multiple antennas. A weight vector calculator calculates a transmit weight vector using a signal received through the multiple antennas as an input on the basis of channel information in the time domain and covariance matrix information about interference and noise and computes a receive weight vector using the calculated transmit weight vector. At least one of the calculated transmit weight vector and receive weight vector is transmitted to a transmission apparatus through a transmitter.
摘要翻译：本发明涉及使用多个天线的OFDM通信系统中的符号式波束成形装置和方法。权重向量计算器基于时域中的信道信息和关于干扰和噪声的协方差矩阵信息，使用通过多个天线接收的信号作为输入来计算发射权重向量，并使用计算的发射权重向量计算接收权重向量。所计算的发射权重向量和接收权重向量中的至少一个通过发射机传输到发射装置。

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