公开(公告)号：US20100272202A1

公开(公告)日：2010-10-28

申请号：US12810638

申请日：2008-12-25

Applicant: Wataru Matsumoto ,  Shigeru Uchida ,  Toshiyuki Kuze ,  Hideo Yoshida

Inventor： Wataru Matsumoto ,  Shigeru Uchida ,  Toshiyuki Kuze ,  Hideo Yoshida

IPC: H04L27/28

CPC classification number: H04L1/1812 ,  H04B7/0413 ,  H04L1/0656 ,  H04L1/1816

Abstract: When an error correction decoding unit 26 of a data reception device 2 fails in error correction decoding of a codeword, an MIMO processing unit 15 of a data transmission device 1 deforms transmitted codewords according to a predetermined rule, and transmits the codewords, and the error correction decoding unit 26 of the data reception device 2 reproduces data by using the deformed codewords. As a result, not only the noise but the interference wave components can be reduced, and the success rates of the demodulation and error correction decoding can be improved greatly.

Abstract translation: 当数据接收装置2的纠错解码单元26对码字的纠错解码失败时，数据传输装置1的MIMO处理单元15根据预定规则使发送的码字变形，并发送码字，并且发送错误 数据接收装置2的校正解码单元26通过使用变形的码字再现数据。 结果，不仅可以降低噪声而且可以降低干扰波分量，而且可以大大提高解调和纠错解码的成功率。

公开(公告)号：US07809072B2

公开(公告)日：2010-10-05

申请号：US11287186

申请日：2005-11-28

Applicant: Hyun-Seok Oh ,  Yong-Serk Kim ,  Jae-Hawk Lee ,  Min-Goo Kim

Inventor： Hyun-Seok Oh ,  Yong-Serk Kim ,  Jae-Hawk Lee ,  Min-Goo Kim

IPC: H04B7/02 ,  H04L1/02

CPC classification number: H04L25/03171 ,  H04L1/0002 ,  H04L1/0026 ,  H04L1/0656 ,  H04L2025/03426

Abstract: An apparatus and method are provided for transmitting high-speed data through a plurality of transmitter antennas using a relay network, receiving signals transmitted from the plurality of transmitter antennas, and removing interference in a mobile communication system. The received signals are despread on a transmitter antenna-by-transmitter antenna basis according to a preset spreading factor. The despread signals are divided into data signals and noise. The signals transmitted through the plurality of transmitter antennas are regenerated from recovered data signals. Data components and interference signal components are identified. The interference signal components are removed from the signals transmitted on the transmitter antenna-by-transmitter antenna basis.

Abstract translation: 提供一种装置和方法，用于使用中继网络通过多个发射机天线发送高速数据，接收从多个发射机天线发射的信号，以及消除移动通信系统中的干扰。 接收到的信号根据预设的扩频因子在发射机天线逐发射天线上进行解扩。 解扩信号被分为数据信号和噪声。 从恢复的数据信号再生通过多个发射机天线发射的信号。 识别数据组件和干扰信号分量。 干扰信号分量从发射机天线发射天线基础上发射的信号中去除。

公开(公告)号：US20100150274A1

公开(公告)日：2010-06-17

申请号：US12299413

申请日：2007-05-03

Applicant: Yongmei Dai ,  Sumei Sun ,  Zhongding Lei ,  Kenichi Higuchi ,  Hiroyuki Kawai

Inventor： Yongmei Dai ,  Sumei Sun ,  Zhongding Lei ,  Kenichi Higuchi ,  Hiroyuki Kawai

IPC: H04L27/06

CPC classification number: H04B7/0413 ,  H04L1/0656 ,  H04L25/0246 ,  H04L25/03305

Abstract: A method for determining a signal vector comprising a plurality of components from a received signal vector is provided comprising performing a QR decomposition of a channel matrix characterizing the communication channel via which the signal vector was received and being expanded by variance information about the noise on the communication channel carrying out a plurality of determination steps using the QR decomposition of the expanded channel matrix, wherein in each step a set of possible sub-vectors of the signal vector is determined and wherein in each step, the number of possible sub-vectors in the set is lower than a predefined maximum number, and selecting one vector of the set of possible sub-vectors determined in the last step of the plurality of determination steps as the signal vector.

Abstract translation: 提供一种用于从接收信号向量确定包括多个分量的信号向量的方法，包括执行表征所述信号向量的通信信道的信道矩阵的QR分解，并通过关于所述信号向量的噪声的方差信息进行扩展 通信信道使用扩展信道矩阵的QR分解来执行多个确定步骤，其中在每个步骤中确定信号向量的一组可能的子向量，并且其中在每个步骤中，可能的子向量的数目 所述集合低于预定义的最大数量，并且选择在所述多个确定步骤的最后步骤中确定的所述一组可能子向量中的一个向量作为所述信号向量。

公开(公告)号：US20100122145A1

公开(公告)日：2010-05-13

申请号：US12688658

申请日：2010-01-15

Applicant: Yutaka MURAKAMI ,  Shutai Okamura ,  Kiyotaka Kobayashi ,  Masayuki Orihashi

Inventor： Yutaka MURAKAMI ,  Shutai Okamura ,  Kiyotaka Kobayashi ,  Masayuki Orihashi

IPC: H03M13/27 ,  G06F11/10 ,  H03M13/05

CPC classification number: H04L1/0041 ,  H03M13/13 ,  H03M13/255 ,  H03M13/2721 ,  H03M13/2909 ,  H04L1/0003 ,  H04L1/0057 ,  H04L1/0071 ,  H04L1/0656 ,  H04L5/0023

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07702050B2

公开(公告)日：2010-04-20

申请号：US11356685

申请日：2006-02-17

Applicant: Ling Su

Inventor： Ling Su

IPC: H04B7/10

CPC classification number: H04L1/0656 ,  H04L1/0631 ,  H04L25/03305 ,  H04L25/03318 ,  H04L2025/0342 ,  H04L2025/03426

Abstract: Various aspects of a system for an adaptive VBLAST receiver for wireless MIMO detection may comprise utilizing log likelihood ratios (LLR) to selectively cancel interference in a received signal when information contained in one or more layers is encoded. Following the selective cancellation of interference, further computations may be performed on the residual received signal. Various aspects of the invention may comprise a linear detector with improved performance in comparison to some conventional VBLAST receivers. Performance may be measured by, for example, a packet error rate (PER) for a given signal to noise ratio (SNR) associated with the received signal.

Abstract translation: 用于无线MIMO检测的自适应VBLAST接收机的系统的各个方面可以包括当对包含在一个或多个层中的信息进行编码时利用对数似然比（LLR）来选择性地消除接收信号中的干扰。 在干扰的选择性消除之后，可以对剩余的接收信号执行进一步的计算。 与一些常规的VBLAST接收机相比，本发明的各个方面可以包括具有改进的性能的线性检测器。 性能可以通过例如与接收信号相关联的给定信噪比（SNR）的分组错误率（PER）来测量。

公开(公告)号：US07676719B2

公开(公告)日：2010-03-09

申请号：US11994624

申请日：2006-07-04

Applicant: Yutaka Murakami ,  Shutai Okamura ,  Kiyotaka Kobayashi ,  Masayuki Orihashi

Inventor： Yutaka Murakami ,  Shutai Okamura ,  Kiyotaka Kobayashi ,  Masayuki Orihashi

IPC: H04L1/00 ,  G06F11/00

CPC classification number: H04L1/0041 ,  H03M13/13 ,  H03M13/255 ,  H03M13/2721 ,  H03M13/2909 ,  H04L1/0003 ,  H04L1/0057 ,  H04L1/0071 ,  H04L1/0656 ,  H04L5/0023

Abstract: 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. There are included an encoding part (11) that subjects transport data to a block encoding process to form block encoded data; a modulating part (15) that modulates the block encoded data to form data symbols; and an arranging (interleaving) part (12) that 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 (15). In this way, there can be provided a transmitter apparatus (10) 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.

Abstract translation: 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。 包括编码部分（11），其对传输数据进行块编码处理以形成块编码数据; 调制部分（15），其对所述块编码数据进行调制以形成数据符号; 以及排列（交织）部分（12），其以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的方式布置（交织）块编码数据，然后提供 将经排列（交错）块编码的数据传送到调制部分（15）。 以这种方式，可以提供一种发射机装置（10），其中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。

公开(公告)号：US20100054353A1

公开(公告)日：2010-03-04

申请号：US12448735

申请日：2008-01-07

Applicant: Dong Wook Roh ,  Bong Hoe Kim ,  Young Woo Yun ,  Dong Youn Seo ,  Joon Kui Ahn ,  Ki Jun Kim

Inventor： Dong Wook Roh ,  Bong Hoe Kim ,  Young Woo Yun ,  Dong Youn Seo ,  Joon Kui Ahn ,  Ki Jun Kim

IPC: H04L27/28

CPC classification number: H04B7/0473 ,  H04B7/0691 ,  H04B7/0697 ,  H04B7/10 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0011 ,  H04L1/0026 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0061 ,  H04L1/0066 ,  H04L1/0067 ,  H04L1/0068 ,  H04L1/007 ,  H04L1/0071 ,  H04L1/06 ,  H04L1/0656 ,  H04L1/08 ,  H04L1/1812 ,  H04L5/0023 ,  H04L5/0039 ,  H04L25/0204 ,  H04L25/0248 ,  H04L2025/03414 ,  H04L2025/03426

Abstract: A method for indicating a combination between a codeword and a layer in a MIMO communication, system, a layer mapping method, and a data transmission method using the same are disclosed. A minimum number of codeword-layer mapping combinations from among all available combinations based on the numbers of all codewords and all layers are pre-defined in consideration of a ratio of a codeword to a layer, a reception performance of a receiver, and reduction of combinations, so that a data transmission method using the predefined combinations is implemented. If a specific one codeword is mapped to at least two layers, a diversity gain can be acquired.

Abstract translation: 公开了一种用于指示MIMO通信中的码字和层之间的组合的方法，系统，层映射方法和使用该组合的数据传输方法。 考虑到码字与层的比率，接收机的接收性能以及接收机的接收性能的限制，基于所有码字和所有层的数量的所有可用组合中的码字层映射组合的最小数量被预先定义 组合，从而实现使用预定义组合的数据传输方法。 如果将特定的一个码字映射到至少两个层，则可以获得分集增益。

公开(公告)号：US20090297144A1

公开(公告)日：2009-12-03

申请号：US12392294

申请日：2009-02-25

Applicant: Ivan B. Djordevic ,  Lei Xu ,  Ting Wang

Inventor： Ivan B. Djordevic ,  Lei Xu ,  Ting Wang

IPC: H04K3/00 ,  H04B10/06

CPC classification number: H04L27/3405 ,  H04B10/2569 ,  H04B10/60 ,  H04B10/697 ,  H04B2210/252 ,  H04L1/005 ,  H04L1/0631 ,  H04L1/0656 ,  H04L5/0023 ,  H04L25/067 ,  H04L27/2649 ,  H04L2025/03426 ,  H04L2025/03611

Abstract: Receivers and methods are provided for polarization mode dispersion compensation in multi-level coded-modulation schemes using a BLAST algorithm and iterative polarization cancellation. A receiver includes a vertical Bell Laboratories Layered Space-Time Architecture (V-BLAST) orthogonal frequency division multiplexing (OFDM) detector configured to receive input sequences and partially cancel polarization interference with respect to the input sequences to output symbol estimates for the input sequences. The receiver further includes one or more low-density parity-check (LDPC) decoders coupled to the V-BLAST OFDM detector configured to receive channel bit reliabilities and output code words. The channel bit reliabilities are indirectly calculated from the symbol estimates. The one or more LDPC decoders iteratively provide extrinsic soft information feedback to the V-BLAST OFDM detector to compensate for the polarization interference.

Abstract translation: 为使用BLAST算法和迭代偏振消除的多电平编码调制方案中的偏振模色散补偿提供接收机和方法。 接收机包括垂直的贝尔实验室分层时空架构（V-BLAST）正交频分复用（OFDM）检测器，其被配置为接收输入序列并部分地消除相对于输入序列的偏振干扰，以输出输入序列的符号估计。 接收机还包括耦合到V-BLAST OFDM检测器的一个或多个低密度奇偶校验（LDPC）解码器，被配置为接收信道位可靠性和输出码字。 信道位可靠性是从符号估计中间接计算的。 一个或多个LDPC解码器向V-BLAST OFDM检测器反复地提供外在的软信息反馈以补偿极化干扰。

公开(公告)号：US20090285332A1

公开(公告)日：2009-11-19

申请号：US12497129

申请日：2009-07-02

Applicant: Mohamed O. Damen ,  Norman C. Beaulieu ,  Hesham El Gamal

Inventor： Mohamed O. Damen ,  Norman C. Beaulieu ,  Hesham El Gamal

IPC: H04L27/00

CPC classification number: H04B7/0669 ,  H04L1/0625 ,  H04L1/0656 ,  H04L27/2626

Abstract: Space-time code, and methods for constructing space-time codes are provided. The space-time coder performs a respective linear transformation on each of P sets of K modulated symbols of a modulated symbol stream to produce P sets of T linearly transformed symbols, applies a respective phase rotation to each set of T linearly transformed symbols to produce a respective set of T phase rotated symbols, and performs a threading operation on the sets of T phase rotated symbols to produce P threaded sequences that define M output sequences; the threading operation being such that each threaded sequence is an allocation of output sequences over time of a respective one of the P sets of T phase rotated symbols in which all of the output sequences are used by each threaded sequence; during each of T symbol periods, a respective one of the P threaded sequences includes a symbol from one of the P sets of phase rotated symbols; and at least one symbol from each set of phase rotated symbols appears in each output sequence; where M>=2, 2 =M and M>=K.

Abstract translation: 提供时空代码和构建时空代码的方法。 空时编码器对调制符号流的K个调制符号的P组中的每一个执行相应的线性变换，以产生T个线性变换符号的P集合，将相应的相位旋转应用于每组T个线性变换的符号，以产生 相应的T相旋转符号组，并对T相旋转符号组进行线程操作，以产生定义M个输出序列的P线程序列; 所述线程操作使得每个线程序列是随着T个相位旋转符号的P组中的相应一个的时间的输出序列的分配，其中所有输出序列由每个线程序列使用; 在T个符号周期的每一个期间，P个线程序列中的相应一个包括来自P组相位旋转符号之一的符号; 并且每个输出序列中出现来自每组相位旋转符号的至少一个符号; 其中M> = 2，2 <= P <= M，T> = M，M> = K。

公开(公告)号：US07606319B2

公开(公告)日：2009-10-20

申请号：US10892833

申请日：2004-07-15

Applicant: Jianzhong Zhang ,  Balaji Raghothaman ,  Yan Wang ,  Giridhar Mandyam

Inventor： Jianzhong Zhang ,  Balaji Raghothaman ,  Yan Wang ,  Giridhar Mandyam

IPC: H04B7/02

CPC classification number: H04L1/0656 ,  H04B1/7105 ,  H04B1/71055 ,  H04L1/0026 ,  H04L1/20 ,  H04L2025/03426 ,  H04L2025/03617

Abstract: In a JE, spread spectrum communication MIMO system where a demultiplexed packet is transmitted over multiple streams, two versions of a single CQI are disclosed: generalized SNR or constrained mutual information CMI between the transmitted and received chip vectors. In the receiver, the CMI is constrained so that filtering is suboptimal. The filter bank is preferably LMMSE or MVDR filters that convert the multi-path channel into a single path channel so that joint sequence detection is unnecessary. Detection is by a per-Walsh code architecture, wherein a plurality of Walsh-code specific detectors in parallel detect bits or symbols from the single-channel chips after downconverting chip to symbols. Link to system mapping is realizable using the disclosed CQI for a JE MIMO system in that the CQI or related information is returned to the transmitter, which adapts coding rate and/or modulation for the channel as represented by the CQI.

Abstract translation: 在扩频通信MIMO系统中，通过多个流传输解复用分组的扩频通信MIMO系统，公开了单个CQI的两个版本：发送和接收的码片向量之间的广义SNR或受限互相信息CMI。 在接收机中，CMI被约束，使得过滤不是最佳的。 滤波器组优选地将多路径信道转换成单路径信道的LMMSE或MVDR滤波器，使得不需要联合序列检测。 检测是通过沃尔什码结构进行的，其中多个沃尔什码专用检测器在将芯片下变频到符号之后并行地检测来自单通道芯片的位或符号。 使用所公开的用于JE MIMO系统的CQI可实现与系统映射的链接，因为CQI或相关信息被返回给发射机，其适配由CQI表示的信道的编码率和/或调制。