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    • 1. 发明申请
    • Apparatus and method for receiving signals in a mobile communication system using adaptive antenna array technology
    • 在使用自适应天线阵列技术的移动通信系统中接收信号的装置和方法
    • US20050032476A1
    • 2005-02-10
    • US10914461
    • 2004-08-09
    • Chan-Byoung ChaePan-Yuh JooSeok-Hyun Yoon
    • Chan-Byoung ChaePan-Yuh JooSeok-Hyun Yoon
    • H04B7/08H04B15/00
    • H04B7/086H04B7/0854
    • A base station having at least one reception antenna generates a reception beam using a previous reception beam weight and a despread signal of a current reception signal, calculates an error value indicating a difference between the current reception signal and a desired reception signal, and calculates a current reception beam weight using the previous reception beam weight, the despread signal and the error value. The base station generates a reception beam weight step value using the error value and an output signal, calculates a difference between the previous reception beam weight and a product of the reception beam weight step value, the despread signal, and a conjugate value of the error value, as the current reception beam weight, and selects the reception beam weight step value such that the current reception beam weight becomes the optimal reception beam.
    • 具有至少一个接收天线的基站使用先前接收波束权重和当前接收信号的去扩展信号来生成接收波束,计算表示当前接收信号与期望接收信号之间的差的误差值,并计算出 使用先前接收波束权重的当前接收波束权重,解扩信号和误差值。 基站使用误差值和输出信号生成接收波束加权步长值,计算先前的接收波束权重与接收波束权重步长值,解扩展信号和误差的共轭值之间的差 作为当前接收波束权重,并且选择接收波束加权步长值使得当前接收波束权重变为最佳接收波束。
    • 2. 发明授权
    • Apparatus and method for receiving signals in a mobile communication system using adaptive antenna array technology
    • 在使用自适应天线阵列技术的移动通信系统中接收信号的装置和方法
    • US07236744B2
    • 2007-06-26
    • US10914461
    • 2004-08-09
    • Chan-Byoung ChaePan-Yuh JooSeok-Hyun Yoon
    • Chan-Byoung ChaePan-Yuh JooSeok-Hyun Yoon
    • H04B15/00
    • H04B7/086H04B7/0854
    • A base station having at least one reception antenna generates a reception beam using a previous reception beam weight and a despread signal of a current reception signal, calculates an error value indicating a difference between the current reception signal and a desired reception signal, and calculates a current reception beam weight using the previous reception beam weight, the despread signal and the error value. The base station generates a reception beam weight step value using the error value and an output signal, calculates a difference between the previous reception beam weight and a product of the reception beam weight step value, the despread signal, and a conjugate value of the error value, as the current reception beam weight, and selects the reception beam weight step value such that the current reception beam weight becomes the optimal reception beam.
    • 具有至少一个接收天线的基站使用先前接收波束权重和当前接收信号的去扩展信号来生成接收波束,计算表示当前接收信号与期望接收信号之间的差的误差值,并计算出 使用先前接收波束权重的当前接收波束权重,解扩信号和误差值。 基站使用误差值和输出信号生成接收波束加权步长值,计算先前的接收波束权重与接收波束权重步长值,解扩展信号和误差的共轭值之间的差 作为当前接收波束权重,并且选择接收波束加权步长值使得当前接收波束权重变为最佳接收波束。
    • 3. 发明授权
    • Transmission apparatus and method for use in mobile communication system based on orthogonal frequency division multiplexing scheme
    • 基于正交频分复用方案的移动通信系统中使用的传输装置和方法
    • US07417964B2
    • 2008-08-26
    • US10872807
    • 2004-06-21
    • Young-Kwon ChoKatz Marcos DanielSeok-Hyun YoonDong-Seek ParkSeong-Ill ParkHo-Kyu ChoiPan-Yuh JooYoung-Kyun KimHyeon-Woo Lee
    • Young-Kwon ChoKatz Marcos DanielSeok-Hyun YoonDong-Seek ParkSeong-Ill ParkHo-Kyu ChoiPan-Yuh JooYoung-Kyun KimHyeon-Woo Lee
    • H04B7/204
    • H04L5/006H04L5/0017H04L5/0046H04L5/0048
    • A transmitter for a mobile communication system based on an OFDM scheme and a method for controlling the same. The transmitter can implement a characteristic of a multiple access scheme based on an OFDM scheme, a characteristic of a CDMA scheme, and a characteristic of a frequency hopping scheme which has very strong resistance to the frequency selective fading. An apparatus for transmitting information bit sequences from a BS (Base Station) transmitter to different users, includes a plurality of channelizers for dividing a single frame of information bit sequences to be transmitted to individual users into a plurality of times according to a given time interval, simultaneously transmitting the information bit sequences to the individual users within the plurality of division times, dividing the information bit sequences, spreading the divided information bit sequences using different Walsh codes, converting the spread information bit sequences into a single sequence associated with the individual users, and outputting the single sequence; and a frequency hopper for dividing the single sequence, distributing the spread information bit sequences over a plurality of bandwidths capable of mapping-processing the spread information bit sequences with sub-carrier frequencies, and preventing each of the bandwidths from overlapping with time-frequency cells given by the given time interval.
    • 一种用于基于OFDM方案的移动通信系统的发射机及其控制方法。 发射机可以基于OFDM方案,CDMA方案的特征以及对频率选择性衰落具有非常强的抵抗性的跳频方案的特性来实现多址方案的特性。 用于从BS(基站)发射机向不同用户发送信息比特序列的装置包括:多个信道化器,用于根据给定的时间间隔将要发送给各个用户的单个信息比特序列划分成多个时间 同时在多个分割时间内将信息比特序列发送给各个用户,分割信息比特序列,使用不同的沃尔什码扩展分割的信息比特序列,将扩展信息比特序列转换成与各个用户相关联的单个序列 并输出单个序列; 以及用于分割单个序列的频率漏斗,在扩展信息比特序列分布在能够对扩展信息比特序列进行映射处理的子载波频率的多个带宽上分布,并且防止每个带宽与时频小区重叠 由给定的时间间隔给出。
    • 8. 发明授权
    • Apparatus and method for encoding and decoding a space-time low density parity check code with full diversity gain
    • 用于对具有全分集增益的时空低密度奇偶校验码进行编码和解码的装置和方法
    • US07389464B2
    • 2008-06-17
    • US11052673
    • 2005-02-07
    • Hong-Sil JeongSeok-Hyun YoonJae-Yoel KimChan-Byoung Chae
    • Hong-Sil JeongSeok-Hyun YoonJae-Yoel KimChan-Byoung Chae
    • H03M13/25H03M13/29H04B7/06H04B7/07
    • H04L1/0057H03M13/1102H04L1/0625H04L1/0631
    • In a mobile communication system including a transmitter and a receiver, an LDPC code is generated by encoding received information data such that a fifth partial matrix obtained by combining a second partial matrix having even-numbered columns of a first partial matrix corresponding to the information data with a fourth partial matrix having odd-numbered columns of a third partial matrix corresponding to a parity, and an eighth partial matrix obtained by combining a sixth partial matrix having odd-numbered columns of the first partial matrix with a seventh partial matrix having even-numbered columns of the third partial matrix correspond to a ninth partial matrix obtained by exclusive-ORing the first partial matrix and the third partial matrix and a parity check matrix having a predetermined rank in a binary field. A space-time LDPC code is generated by spatial-mapping the LDPC code according to a predetermined spatial mapping scheme.
    • 在包括发射机和接收机的移动通信系统中,通过编码所接收的信息数据来生成LDPC码,使得通过组合具有与信息数据相对应的第一部分矩阵的具有偶数列的第二部分矩阵而获得的第五部分矩阵 第四部分矩阵具有对应于奇偶校验的第三部分矩阵的奇数列,以及通过将具有第一部分矩阵的奇数列的第六部分矩阵与具有偶数列的第七部分矩阵组合而获得的第八部分矩阵, 第三部分矩阵的编号列对应于通过对二进制字段中的第一部分矩阵和第三部分矩阵进行异或运算而获得的第九部分矩阵和具有预定等级的奇偶校验矩阵。 通过根据预定的空间映射方案对LDPC码进行空间映射来生成时空LDPC码。
    • 10. 发明申请
    • Apparatus and method for encoding and decoding a space-time low density parity check code with full diversity gain
    • 用于对具有全分集增益的时空低密度奇偶校验码进行编码和解码的装置和方法
    • US20050204273A1
    • 2005-09-15
    • US11052673
    • 2005-02-07
    • Hong-Sil JeongSeok-Hyun YoonJae-Yoel KimChan-Byoung Chae
    • Hong-Sil JeongSeok-Hyun YoonJae-Yoel KimChan-Byoung Chae
    • G06F11/00H03M13/00
    • H04L1/0057H03M13/1102H04L1/0625H04L1/0631
    • In a mobile communication system including a transmitter and a receiver, an LDPC code is generated by encoding received information data such that a fifth partial matrix obtained by combining a second partial matrix having even-numbered columns of a first partial matrix corresponding to the information data with a fourth partial matrix having odd-numbered columns of a third partial matrix corresponding to a parity, and an eighth partial matrix obtained by combining a sixth partial matrix having odd-numbered columns of the first partial matrix with a seventh partial matrix having even-numbered columns of the third partial matrix correspond to a ninth partial matrix obtained by exclusive-ORing the first partial matrix and the third partial matrix and a parity check matrix having a predetermined rank in a binary field. A space-time LDPC code is generated by spatial-mapping the LDPC code according to a predetermined spatial mapping scheme.
    • 在包括发射机和接收机的移动通信系统中,通过编码所接收的信息数据来生成LDPC码,使得通过组合具有与信息数据相对应的第一部分矩阵的具有偶数列的第二部分矩阵而获得的第五部分矩阵 第四部分矩阵具有对应于奇偶校验的第三部分矩阵的奇数列,以及通过将具有第一部分矩阵的奇数列的第六部分矩阵与具有偶数列的第七部分矩阵组合而获得的第八部分矩阵, 第三部分矩阵的编号列对应于通过对二进制字段中的第一部分矩阵和第三部分矩阵进行异或运算而获得的第九部分矩阵和具有预定等级的奇偶校验矩阵。 通过根据预定的空间映射方案对LDPC码进行空间映射来生成时空LDPC码。