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1.发明授权公开(公告)号：US08064945B2
公开(公告)日：2011-11-22
申请号：US11835906
申请日：2007-08-08
IPC分类号： H04B1/40
CPC分类号： H04B7/043 , H04B7/0621 , H04B7/0848 , H04B17/24 , H04B17/318 , H04W52/42
摘要： Channel fluctuation values on propagation paths of modulated signals transmitted from a plurality of antennas are estimated, an eigenvalue of a channel fluctuation matrix created with the above-mentioned channel fluctuation values as elements is found in order to relate antenna received signals to modulated signals, and using that eigenvalue, receiving antenna selection, combining of modulated signals, and weighting processing on soft decision decoded values, are performed, and modulated signals are demodulated. By this means, it is possible to perform demodulation processing based on the effective reception power of a modulated signal (that is to say, the essential reception power, of the reception power obtained by a receiving apparatus, that can be effectively used when demodulating a modulated signal), enabling the precision of demodulation of modulated signals to be improved.
摘要翻译： 估计从多个天线发送的调制信号的传播路径上的信道波动值，找到以上述信道变动值作为要素而生成的信道变动矩阵的特征值，以将天线接收信号与调制信号相关联， 使用该特征值，接收天线选择，调制信号的组合和对软判决解码值的加权处理，并且调制信号被解调。 通过这种方式，可以基于调制信号（也就是接收设备获得的接收功率的基本接收功率）的有效接收功率进行解调处理，当解调 调制信号），能够提高调制信号的解调精度。
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公开(公告)号：US07280840B2
公开(公告)日：2007-10-09
申请号：US10704653
申请日：2003-11-12
IPC分类号： H04B7/005
CPC分类号： H04B7/043 , H04B7/0621 , H04B7/0848 , H04B17/24 , H04B17/318 , H04W52/42
摘要： Channel fluctuation values on propagation paths of modulated signals transmitted from a plurality of antennas are estimated, an eigenvalue of a channel fluctuation matrix created with the above-mentioned channel fluctuation values as elements is found in order to relate antenna received signals to modulated signals, and using that eigenvalue, receiving antenna selection, combining of modulated signals, and weighting processing on soft decision decoded values, are performed, and modulated signals are demodulated. By this means, it is possible to perform demodulation processing based on the effective reception power of a modulated signal (that is to say, the essential reception power, of the reception power obtained by a receiving apparatus, that can be effectively used when demodulating a modulated signal), enabling the precision of demodulation of modulated signals to be improved.
摘要翻译： 估计从多个天线发送的调制信号的传播路径上的信道波动值，找到以上述信道变动值作为要素而生成的信道变动矩阵的特征值，以将天线接收信号与调制信号相关联， 使用该特征值，接收天线选择，调制信号的组合和对软判决解码值的加权处理，并且调制信号被解调。 通过这种方式，可以基于调制信号（也就是接收设备获得的接收功率的基本接收功率）的有效接收功率进行解调处理，当解调 调制信号），能够提高调制信号的解调精度。
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3.发明授权Radio communication method and apparatus selectively employing a plurality of antennas 有权选择性地采用多个天线的无线通信方法和装置公开(公告)号：US08457234B2
公开(公告)日：2013-06-04
申请号：US12637524
申请日：2009-12-14
CPC分类号： H04B7/0604 , H04B7/0608 , H04B7/0689 , H04B7/0691 , H04L25/0204 , H04L25/0224 , H04L27/18 , H04L27/2601 , H04L27/261
摘要： A transmitting apparatus that transmits signals from a plurality of antennas, and can improve the security of communication compared with a conventional system. In this apparatus, an antenna changing section (105) stores an antenna change pattern in internal memory, and each time a clock signal is input, generates an antenna change signal directing an antenna change in accordance with the antenna change pattern, and outputs this signal to an antenna selection section (106). Based on the antenna change signal, the antenna selection section (106) selects two different antennas from among the transmitting antennas (107-1 through 107-3) as transmitting antennas of transmit signal A output from a radio section (104-1) and transmit signal B output from a radio section (104-2), and performs radio transmission of transmit signal A and transmit signal B using the selected transmitting antennas.
摘要翻译： 从多个天线发送信号的发送装置，与以往的系统相比，能够提高通信的安全性。 在该装置中，天线变换部（105）将天线变换模式存储在内部存储器中，并且每次输入时钟信号时，根据天线变化模式生成指示天线变化的天线变换信号，并输出该信号 到天线选择部分（106）。 基于天线变换信号，天线选择部（106）从发送天线（107-1〜107-3）中选择2个不同的天线作为从无线部（104-1）输出的发送信号A的发送天线， 从无线电部分（104-2）输出的发送信号B，并且使用所选择的发送天线执行发送信号A和发送信号B的无线电发送。
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公开(公告)号：US08270521B2
公开(公告)日：2012-09-18
申请号：US13052833
申请日：2011-03-21
IPC分类号： H04B7/02
CPC分类号： H04L27/0008 , H04B7/0413 , H04B7/0417 , H04B7/0669 , H04L1/0006 , H04L1/0026 , H04L1/06 , H04L1/0618 , H04L1/08 , H04L5/0046 , H04L27/3405 , H04W52/42
摘要： Modulated signal A is transmitted from a first antenna, and modulated signal B is transmitted from a second antenna. As modulated signal B, modulated symbols S2(i) and S2(i+1) obtained from different data are transmitted at time i and time i+1 respectively. In contrast, as modulated signal A, modulated symbols S1(i) and S1(i)′ obtained by changing the signal point arrangement of the same data are transmitted at time i and time i+1 respectively. As a result the reception quality can be changed intentionally at time i and time i+1, and therefore using the demodulation result of modulated signal A of a time when the reception quality is good enables both modulated signals A and B to be demodulated with good error rate performances.
摘要翻译： 从第一天线发送调制信号A，从第二天线发送调制信号B. 作为调制信号B，分别在时间i和时间i + 1发送从不同数据获得的调制符号S2（i）和S2（i + 1）。 相反，作为调制信号A，分别在时间i和时间i + 1发送通过改变相同数据的信号点排列获得的调制符号S1（i）和S1（i）'。 结果，可以在时间i和时间i + 1有意地改变接收质量，因此当接收质量好的时候使用调制信号A的解调结果使得调制信号A和B能够被良好地解调 错误率表现。
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公开(公告)号：US08259837B2
公开(公告)日：2012-09-04
申请号：US12913601
申请日：2010-10-27
IPC分类号： H04B7/02
CPC分类号： H04L27/0008 , H04B7/0413 , H04B7/0417 , H04B7/0669 , H04L1/0006 , H04L1/0026 , H04L1/06 , H04L1/0618 , H04L1/08 , H04L5/0046 , H04L27/3405 , H04W52/42
摘要： Modulated signal A is transmitted from a first antenna, and modulated signal B is transmitted from a second antenna. As modulated signal B, modulated symbols S2(i) and S2(i+1) obtained from different data are transmitted at time i and time i+1 respectively. In contrast, as modulated signal A, modulated symbols S1(i) and S1(i)′ obtained by changing the signal point arrangement of the same data are transmitted at time i and time i+1 respectively. As a result the reception quality can be changed intentionally at time i and time i+1, and therefore using the demodulation result of modulated signal A of a time when the reception quality is good enables both modulated signals A and B to be demodulated with good error rate performances.
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6.发明申请INTERLEAVER, INTERLEAVING METHOD, TRANSMISSION APPARATUS, AND TRANSMITTING METHOD 有权交互，交互方法，传输装置和传输方法公开(公告)号：US20120147989A1
公开(公告)日：2012-06-14
申请号：US13399848
申请日：2012-02-17
申请人： Yutaka MURAKAMI , Kiyotaka Kobayashi , Masayuki Orihashi , Akihiko Matsuoka , Daichi Imamura , Rahul Malik
发明人： Yutaka MURAKAMI , Kiyotaka Kobayashi , Masayuki Orihashi , Akihiko Matsuoka , Daichi Imamura , Rahul Malik
IPC分类号： H04L27/00
CPC分类号： H04B7/0413 , H04B7/0851 , H04L1/0057 , H04L1/0071 , H04L1/0086 , H04L1/0618 , H04L1/1819 , H04L5/0023 , H04L25/03229 , H04L25/03305 , H04L25/03324 , H04L25/03891 , H04L27/2628 , H04L27/265 , H04L2025/03414 , H04L2025/03611
摘要： Soft decision sections provisionally decide each modulated signal separated using an inverse matrix calculation of a channel fluctuation matrix at separation section. Signal point reduction sections reduce candidate signal points of a multiplexed modulated signal using the provisional decision results. Soft decision sections make a correct decision using the reduced candidate signal points and obtain received data of each modulated signal. This allows received data RA, RB with a good error rate characteristic to be obtained with a relatively small number of calculations without reducing data transmission efficiency.
摘要翻译： 软判决部分使用在分离部分的信道波动矩阵的逆矩阵计算来临时决定分离的每个调制信号。 信号点减少部分使用临时判定结果来减少复用调制信号的候选信号点。 软判决部分使用缩减的候选信号点做出正确的决定，并获得每个调制信号的接收数据。 这允许以相对较少数量的计算获得具有良好错误率特性的接收数据RA，RB，而不降低数据传输效率。
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公开(公告)号：US08081703B2
公开(公告)日：2011-12-20
申请号：US12913601
申请日：2010-10-27
IPC分类号： H04B7/02
摘要： Modulated signal A is transmitted from a first antenna, and modulated signal B is transmitted from a second antenna. As modulated signal B, modulated symbols S2(i) and S2(i+1) obtained from different data are transmitted at time i and time i+1 respectively. In contrast, as modulated signal A, modulated symbols S1(i) and S1(i)′ obtained by changing the signal point arrangement of the same data are transmitted at time i and time i+1 respectively. As a result the reception quality can be changed intentionally at time i and time i+1, and therefore using the demodulation result of modulated signal A of a time when the reception quality is good enables both modulated signals A and B to be demodulated with good error rate performances.
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公开(公告)号：US20100128815A1
公开(公告)日：2010-05-27
申请号：US12694089
申请日：2010-01-26
IPC分类号： H04L27/00
CPC分类号： H04L1/06 , H04B7/0413 , H04B7/0854 , H04L1/0054 , H04L1/006 , H04L1/007 , H04L25/03305 , H04L25/03324 , H04L25/03891 , H04L25/061 , H04L27/3488 , H04L27/38 , H04L2025/03611 , H04N19/39
摘要： A partial bit demodulation section that demodulates partial bits among a plurality of bits that form 1 symbol of each modulated signal using a detection method different from likelihood detection, signal point reduction sections that reduce the number of candidate signal points using demodulated partial bits, and a likelihood detection section obtains received digital signals by performing likelihood detection based on the Euclidian distances between the reduced candidate signal points and a reception point, are provided. By this, only some bits which are unlikely to be erroneous are found by the partial bit demodulation section, and other bits can be found by the likelihood detection section, enabling bit error rate performances to be effectively improved with a comparatively small computational complexity.
摘要翻译： 一种部分比特解调部分，其使用不同于似然检测的检测方法来解调形成每个调制信号的1个符号的多个比特中的部分比特，使用解调的部分比特减少候选信号点的数量的信号点减少部分，以及 提供了通过基于缩小的候选信号点与接收点之间的欧几里德距离进行似然度检测来获得接收到的数字信号的方法。 由此，部分比特解调部分仅发现一些不太可能出错的比特，可以通过似然度检测部分找到其他的比特，从而能够以比较小的计算复杂度有效地提高误码率性能。
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公开(公告)号：US07715504B2
公开(公告)日：2010-05-11
申请号：US10580398
申请日：2004-11-04
CPC分类号： H04L1/06 , H04B7/0413 , H04B7/0854 , H04L1/0054 , H04L1/006 , H04L1/007 , H04L25/03305 , H04L25/03324 , H04L25/03891 , H04L25/061 , H04L27/3488 , H04L27/38 , H04L2025/03611 , H04N19/39
摘要： A partial bit demodulation section demodulates partial bits among a plurality of bits that form one symbol of each modulated signal using a detection method different from likelihood detection. Signal point reduction sections reduce the number of candidate signal points using demodulated partial bits. A likelihood detection section obtains received digital signals by performing likelihood detection based on the Euclidian distances between the reduced candidate signal points and a reception point. Only some bits which are unlikely to be erroneous are found by the partial bit demodulation section, and other bits can be found by the likelihood detection section, enabling bit error rate performances to be effectively improved with a comparatively small computational complexity.
摘要翻译： 部分位解调部分使用与似然检测不同的检测方法解调形成每个调制信号的一个符号的多个比特中的部分比特。 信号点减少部分使用解调的部分比特减少候选信号点的数量。 似然度检测部通过基于缩小候补信号点与接收点之间的欧几里德距离进行似然度检测来获得接收数字信号。 只有部分比特解调部分才能发现一些不太可能出错的比特，可以通过似然度检测部分找到其他比特，从而能够以较小的计算复杂度有效提高误码率性能。
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公开(公告)号：US08285332B2
公开(公告)日：2012-10-09
申请号：US11613245
申请日：2006-12-20
IPC分类号： H04M11/00
CPC分类号： H04L5/023 , H04L1/0003 , H04L1/0618
摘要： A communication method in a communication terminal apparatus includes at least one antenna and performs wireless communication with a base station apparatus including a plurality of transmission antennas. The method includes receiving a signal transmitted from the base station apparatus using the antenna and transmitting a feedback signal regarding transmission antenna selection at the base station apparatus, to the base station apparatus using the antenna.
摘要翻译： 通信终端装置中的通信方法包括至少一个天线，并且与包括多个发送天线的基站装置进行无线通信。 该方法包括：使用天线接收从基站装置发送的信号，并在基站装置发送有关发送天线选择的反馈信号，使用该天线向基站装置发送。
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