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公开(公告)号：US08732547B2
公开(公告)日：2014-05-20
申请号：US13566694
申请日：2012-08-03
IPC分类号： H03M13/00
CPC分类号： H03M13/1105 , H03M13/1102 , H03M13/1157 , H03M13/1174 , H03M13/1177 , H03M13/2909 , H04B7/0413 , H04L1/0045 , H04L1/0057 , H04L1/0061 , H04L1/06 , H04L1/1816 , H04L1/1893 , H04L5/0023 , H04L5/0037 , H04L5/0044
摘要： In a multi-antenna communication system using LDPC codes, a simple method is used to effectively improve the received quality by performing a retransmittal of less data without restricting applicable LDPC codes. In a case of a non-retransmittal, a multi-antenna transmitting apparatus transmits, from two antennas, LDPC encoded data formed by LDPC encoding blocks. In a case of a retransmittal, the multi-antenna transmitting apparatus uses a transmission method, in which the diversity gain is higher than in the previous transmission, to transmit only a part of the LDPC encoded data as previously transmitted. For example, the only the part of the LDPC encoded data to be re-transmitted is transmitted from the single antenna.
摘要翻译： 在使用LDPC码的多天线通信系统中，使用简单的方法通过在不限制可应用的LDPC码的情况下执行更少数据的重传来有效地提高接收质量。 在非重发的情况下，多天线发送装置从两个天线发送由LDPC编码块形成的LDPC编码数据。 在重传的情况下，多天线发送装置使用分集增益高于先前发送的发送方法，仅发送如前所述的LDPC编码数据的一部分。 例如，从单个天线发送仅重新发送的LDPC编码数据的一部分。
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2.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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公开(公告)号：US08233571B2
公开(公告)日：2012-07-31
申请号：US12527654
申请日：2008-02-20
IPC分类号： H03D1/00
CPC分类号： H03M13/27 , H04J11/003 , H04L1/005 , H04L1/0071 , H04L27/2626 , H04L27/2647
摘要： A reception device includes reception antennas and an address generation unit that converts a write-in or read-out order of channel estimation values according to a rearrangement rule. A storage unit writes in or reads out channel estimation values in the converted order, and an address generation unit converts a data sequence write-in or read-out order according to the rearrangement rule. A signal storage unit writes in or reads out data sequences in the converted order, and a replica generation unit generates a replica signal by re-modulating the data sequence according to the channel estimation value. A cancel unit successively generates a stream signal in which a data sequence interference signal is cancelled, by using the channel estimation value, the data sequence, and the replica signal.
摘要翻译： 接收装置包括接收天线和地址生成单元，其根据重排规则转换信道估计值的写入或读出次序。 存储单元以转换的顺序写入或读出信道估计值，地址生成单元根据重排规则转换数据序列写入或读出顺序。 信号存储单元以转换的顺序写入或读出数据序列，并且副本生成单元通过根据信道估计值重新调制数据序列来生成复制信号。 取消单元通过使用信道估计值，数据序列和复制信号，依次生成数据序列干扰信号被消除的流信号。
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6.发明授权公开(公告)号：US08223878B2
公开(公告)日：2012-07-17
申请号：US12689923
申请日：2010-01-19
IPC分类号： H04B7/02
CPC分类号： H04L1/0618
摘要： When space-time block code signals are to be transmitted, the patterns thereof are changed in accordance with data to be transmitted. This advantageously allows a good-quality data transmission to be achieved by the space-time block code signals. In addition, since data can be transmitted by use of the patterns of the space-time block code signals, the data transmission efficiency can be improved.
摘要翻译： 当要发送空时块码信号时，其模式根据要发送的数据而改变。 这有利于通过空时块代码信号来实现高质量的数据传输。 此外，由于可以通过使用空时块码信号的模式来发送数据，所以可以提高数据传输效率。
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公开(公告)号：US08219865B2
公开(公告)日：2012-07-10
申请号：US13190158
申请日：2011-07-25
CPC分类号： H04L1/0041 , H03M13/13 , H03M13/255 , H03M13/2721 , H03M13/2909 , H04L1/0003 , H04L1/0057 , H04L1/0071 , H04L1/0656 , H04L5/0023
摘要： A transmitter apparatus wherein a relatively simple structure is used to suppress burst errors without changing the block sizes of encoded blocks even when the number of modulation multi-values is increased. An encoding part subjects transport data to a block encoding process to form block encoded data. A modulating part modulates the block encoded data to form data symbols; and an arranging (interleaving) part arranges (interleaves) the block encoded data in such a manner that the intra-block encoded data of the encoded blocks, which include their respective single different data symbol, get together, and then supplies the arranged (interleaved) block encoded data to the modulating part. In this way, there can be provided a transmitter apparatus wherein a relatively simple structure is used to suppress burst errors without changing the block sizes of encoded blocks even when the number of modulation multi-values is increased.
摘要翻译： 一种发射机装置，即使当调制多值的数量增加时，使用相对简单的结构来抑制突发错误，而不改变编码块的块大小。 编码部分将传输数据转移到块编码处理以形成块编码数据。 调制部分调制块编码数据以形成数据符号; 并且排列（交织）部分以这样的方式布置（交织）块编码数据，使得包括它们各自的单个不同数据符号的编码块的块内编码数据在一起，然后提供所安排的（交织的 ）块编码数据到调制部分。 以这种方式，可以提供一种发射机装置，即使当调制多值的数量增加时，使用相对简单的结构来抑制突发错误，而不改变编码块的块大小。
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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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9.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：US08010858B2
公开(公告)日：2011-08-30
申请号：US12688658
申请日：2010-01-15
CPC分类号： H04L1/0041 , H03M13/13 , H03M13/255 , H03M13/2721 , H03M13/2909 , H04L1/0003 , H04L1/0057 , H04L1/0071 , H04L1/0656 , H04L5/0023
摘要： A transmitter apparatus wherein a relatively simple structure is used to suppress burst errors without changing the block sizes of encoded blocks even when the number of modulation multi-values is increased. An encoding part subjects transport data to a block encoding process to form block encoded data. A modulating part modulates the block encoded data to form data symbols; and an arranging (interleaving) part arranges(interleaves) the block encoded data in such a manner that the intra-block encoded data of the encoded blocks, which include their respective single different data symbol, get together, and then supplies the arranged(interleaved) block encoded data to the modulating part. In this way, there can be provided a transmitter apparatus wherein a relatively simple structure is used to suppress burst errors without changing the block sizes of encoded blocks even when the number of modulation multi-values is increased.
摘要翻译： 一种发射机装置，即使当调制多值的数量增加时，使用相对简单的结构来抑制突发错误，而不改变编码块的块大小。 编码部分将传输数据转移到块编码处理以形成块编码数据。 调制部分调制块编码数据以形成数据符号; 并且排列（交织）部分以这样的方式布置（交织）块编码数据，使得包括它们各自的单个不同数据符号的编码块的块内编码数据在一起，然后提供所安排的（交织的 ）块编码数据到调制部分。 以这种方式，可以提供一种发射机装置，即使当调制多值的数量增加时，使用相对简单的结构来抑制突发错误，而不改变编码块的块大小。
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