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1.发明授权Transmission apparatus, transmission method, reception apparatus, and reception method 有权发送装置，发送方法，接收装置和接收方法公开(公告)号：US08625718B2
公开(公告)日：2014-01-07
申请号：US13604531
申请日：2012-09-05
IPC分类号： H04L27/00
CPC分类号： H04L5/0048 , H04B7/0413 , H04B2201/70701 , H04J13/18 , H04L5/0007 , H04L5/0023 , H04L25/0206 , H04L27/2613 , H04L27/2628 , H04L27/265 , H04L27/2657 , H04L2027/0024
摘要： A multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) transmission and reception apparatus is provided which allows high accuracy estimation of frequency offset, high accuracy estimation of a transmission path fluctuation and high accuracy synchronization/signal detection. A mapping section generates a plurality of OFDM signals. In these OFDM signals, some pilot carriers are assigned to the same carrier position, and orthogonal sequences are assigned to the same time slot in the same carrier position.
摘要翻译： 提供了多输入多输出（MIMO）正交频分复用（OFDM）发送和接收装置，其允许频率偏移的高精度估计，传输路径波动的高精度估计和高精度同步/信号检测。 映射部分生成多个OFDM信号。 在这些OFDM信号中，一些导频载波被分配给相同的载波位置，正交序列被分配给相同载波位置的相同时隙。
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2.发明授权Transmitting apparatus, transmission method, receiving apparatus, and receiving method 有权发送装置，发送方法，接收装置和接收方法公开(公告)号：US08625702B2
公开(公告)日：2014-01-07
申请号：US13591840
申请日：2012-08-22
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 transmitting apparatus and method transmits different modulated signals from a plurality of antennas, and employs a configuration that includes a modulation section that obtains a modulated signal by performing signal point mapping of transmit bits using a signal point arrangement that is divided into a plurality of signal point sets on the IQ plane, whereby the minimum distance between signal points within a signal point set is smaller than the minimum signal point distance between signal point sets; and an antenna that transmits a modulated signal obtained by the modulation section. A signal point generating apparatus generates a first and second symbols to be transmitted by first and second antennas, respectively.
摘要翻译： 一种发送装置和方法从多个天线发送不同的调制信号，并且采用包括通过使用信号点布置来执行发送比特的信号点映射来获得调制信号的调制部分的配置，该信号点布置被划分为多个信号 在IQ平面上的点集合，由此信号点集合内的信号点之间的最小距离小于信号点集之间的最小信号点距离; 以及发送由调制部获得的调制信号的天线。 信号点生成装置生成分别由第一和第二天线发送的第一和第二符号。
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3.发明授权Transmitting apparatus, transmitting method, receiving apparatus, and receiving method 有权发送装置，发送方法，接收装置和接收方法公开(公告)号：US08532219B2
公开(公告)日：2013-09-10
申请号：US13586442
申请日：2012-08-15
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：US08401110B2
公开(公告)日：2013-03-19
申请号：US12447885
申请日：2007-11-01
CPC分类号： H04L1/0071 , H03M13/15 , H04L1/0003 , H04L1/0009 , H04L1/0059 , H04L1/22 , H04L5/0007 , H04L27/0008 , H04L27/2647 , H04L27/36 , H04L27/38
摘要： A transmitter apparatus wherein a simple structure is used to successfully suppress the degradation of error rate performance that otherwise would be caused by fading or the like. There are included encoding parts (11—1-11—4) that encode transport data; a mapping part (3304) that performs such a mapping that encoded data sequentially formed by the encoding parts (11—1-11—4) are not successively included in the same symbol, thereby forming data symbols; and a symbol interleaver (3301) that interleaves the data symbols. In this way, a low computational complexity can be used to perform an interleaving process equivalent to a bit interleaving process to effectively improve the reception quality at a receiving end.
摘要翻译： 一种发射机装置，其中使用简单的结构来成功地抑制否则将由衰落等引起的误码率性能的降级。 包括编码传输数据的编码部分（11-1-11-4）; 执行编码由编码部分（11-1-11-4）顺序形成的数据的映射的映射部分（3304）不被连续地包括在相同的符号中，从而形成数据符号; 以及交错数据符号的符号交织器（3301）。 以这种方式，可以使用低的计算复杂度来执行等同于比特交织处理的交织处理，以有效地提高接收端的接收质量。
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5.发明申请TRANSMISSION METHOD, TRANSMISSION APPARATUS, RECEPTION METHOD, AND RECEPTION APPARATUS 有权传输方法，传输装置，接收方法和接收装置公开(公告)号：US20120314809A1
公开(公告)日：2012-12-13
申请号：US13590779
申请日：2012-08-21
IPC分类号： H04L27/00
CPC分类号： H04B7/0413 , H04B7/0608 , H04B7/0613 , H04B7/0689 , H04B7/0697 , H04L1/06
摘要： Of any one of transmission method X of transmitting modulated signal A and modulated signal B including the same data from a plurality of antennas and transmission method Y of transmitting modulated signal A and modulated signal B having different data from the plurality of antennas, base station apparatus 201 does not change the transmission method during data transmission and changes only the modulation scheme. Base station apparatus 201 transmits modulated signal A and modulated signal B to communication terminal apparatus 251 using the determined transmission method and modulation scheme. In this way, it is possible to improve data transmission efficiency when transmitting data using the plurality of antennas.
摘要翻译： 发送调制信号A的发送方法X和包含来自多个天线的相同数据的调制信号B和从多个天线发送调制信号A和调制信号B的数据不同的发送方式Y中的任一种，基站装置 201在数据传输期间不改变传输方法，并且仅改变调制方案。 基站装置201使用确定的发送方法和调制方式向调制信号A和调制信号B发送到通信终端装置251。 以这种方式，可以在使用多个天线发送数据时提高数据传输效率。
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公开(公告)号：US08295391B2
公开(公告)日：2012-10-23
申请号：US13176459
申请日：2011-07-05
IPC分类号： H04L27/00
CPC分类号： H04B7/0413 , H04B7/0608 , H04B7/0613 , H04B7/0689 , H04B7/0697 , H04L1/06
摘要： Of any one of transmission method X of transmitting modulated signal A and modulated signal B including the same data from a plurality of antennas and transmission method Y of transmitting modulated signal A and modulated signal B having different data from the plurality of antennas, base station apparatus 201 does not change the transmission method during data transmission and changes only the modulation scheme. Base station apparatus 201 transmits modulated signal A and modulated signal B to communication terminal apparatus 251 using the determined transmission method and modulation scheme. In this way, it is possible to improve data transmission efficiency when transmitting data using the plurality of antennas.
摘要翻译： 发送调制信号A的发送方法X和包含来自多个天线的相同数据的调制信号B和从多个天线发送调制信号A和调制信号B的数据不同的发送方式Y中的任一种，基站装置 201在数据传输期间不改变传输方法，并且仅改变调制方案。 基站装置201使用确定的发送方法和调制方式向调制信号A和调制信号B发送到通信终端装置251。 以这种方式，可以在使用多个天线发送数据时提高数据传输效率。
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公开(公告)号：US08121227B2
公开(公告)日：2012-02-21
申请号：US12882989
申请日：2010-09-15
CPC分类号： H04L27/38 , H04B7/04 , H04L25/03184 , H04L25/067 , H04L2025/0342 , H04L2025/03426
摘要： It is possible to demodulate a plurality of modulated signals transmitted from a plurality of antennas by using a comparatively small-size circuit with a preferable error ratio characteristic. Partial bit judgment units (509, 512) demodulates partial bits of the 64QAM-modulated signal by modifying which of the bits in the 6-bit strings constituting a symbol is to be demodulated depending on in which region of the IQ plane the reception signal point exists. This improves the partial bit error characteristic judged by the partial bit judgment units (509, 512), which in turn improves reliability of the reduced candidate signal point for use by a likelihood detection unit (518). As a result, it is possible to improve the error ratio characteristic of the final reception digital signals (322, 323).
摘要翻译： 可以通过使用具有优选误差比特性的较小尺寸的电路来解调从多个天线发送的多个调制信号。 部分位判断单元（509,512）通过根据IQ平面的哪个区域修改构成符号的6位串中的哪个位要解调64QAM调制信号的部分位，接收信号点 存在 这改善了由部分比特判断单元（509,512）判断的部分比特误差特性，这又提高了可靠性检测单元（518）使用的缩减候补信号点的可靠性。 结果，可以提高最终接收数字信号（322,323）的误差比特性。
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8.发明申请OFDM TRANSMISSION SIGNAL GENERATION APPARATUS AND METHOD, AND OFDM RECEPTION DATA GENERATION APPARATUS AND METHOD 有权OFDM传输信号发生装置和方法以及OFDM接收数据生成装置和方法公开(公告)号：US20110255637A1
公开(公告)日：2011-10-20
申请号：US13171121
申请日：2011-06-28
CPC分类号： H04L5/0048 , H04B7/0413 , H04B2201/70701 , H04J13/18 , H04L5/0007 , H04L5/0023 , H04L25/0206 , H04L27/2613 , H04L27/2628 , H04L27/265 , H04L27/2657 , H04L2027/0024
摘要： A MIMO-OFDM transmission and reception apparatus is provided which allows high accuracy estimation of frequency offset, high accuracy estimation of a transmission path fluctuation and high accuracy synchronization/signal detection. A mapping section generates a plurality of OFDM signals. In these OFDM signals, some pilot carriers are assigned to the same carrier position and orthogonal sequences are assigned to the same time slot in the same carrier position.
摘要翻译： 提供了MIMO-OFDM发送和接收装置，其允许频率偏移的高精度估计，传输路径波动的高精度估计和高精度同步/信号检测。 映射部分生成多个OFDM信号。 在这些OFDM信号中，一些导频载波被分配给相同的载波位置，并且正交序列被分配给相同载波位置中的相同时隙。
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9.发明申请公开(公告)号：US20110044412A1
公开(公告)日：2011-02-24
申请号：US12917248
申请日：2010-11-01
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： H04B7/10
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 (503, 506) provisionally decide each modulated signal (502, 505) separated using an inverse matrix calculation of a channel fluctuation matrix at separation section (501). Signal point reduction sections (508, 510, 514, 516) reduce candidate signal points of a multiplexed modulated signal using the provisional decision results (504, 507). Soft decision sections (512, 518) make a correct decision using the reduced candidate signal points and obtain received data (RA, RB) 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（503,506）临时确定在分离部分（501）处使用信道波动矩阵的逆矩阵计算分离的每个调制信号（502,505）。 信号点减少部分（508,510,514,516）使用临时决策结果（504,507）来减少复用的调制信号的候选信号点。 软判决部分（512,518）使用减小的候选信号点进行正确的判定，并获得每个调制信号的接收数据（RA，RB）。 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：US20100260278A1
公开(公告)日：2010-10-14
申请号：US12824047
申请日：2010-06-25
IPC分类号： H04L27/28
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+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+ 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的解调结果使得能够以良好的误差解调调制信号A和B 率表现。
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