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21. 发明专利

JP2012085325A Likelihood decision method and likelihood decision apparatus 有权
标题翻译： LIKELIHOOD决策方法和LIKELIHOOD决策设备
公开(公告)号：JP2012085325A
公开(公告)日：2012-04-26
申请号：JP2011259055
申请日：2011-11-28
申请人： Panasonic Corp , パナソニック株式会社
发明人： OIZUMI TORU
IPC分类号： H04J99/00 , H04B7/04
CPC分类号： H04L25/0204 , H04L25/0228 , H04L25/0246 , H04L25/03006 , H04L2025/03426
摘要： PROBLEM TO BE SOLVED: To provide a likelihood decision apparatus that can reduce computational complexity and can improve communication quality.SOLUTION: The likelihood decision apparatus decides a likelihood of each bit included in second signals other than a first signal calculated only in a final stage out of received spatially multiplexed signals by an MLD method using QR decomposition. From signal points on a signal space of the first signal provided by all signal point candidates of the second signals decided up to a penultimate stage, a neighboring signal point candidate detection section (120) detects a nearest neighboring signal point in a constellation on the signal space having a minimum separation distance for each signal point candidate of the second signals. A distance calculation section (140) calculates a distance to a unitarily transformed received signal point related to the final stage as to the signal point candidates of the second signals and the nearest neighboring signal points for the respective signal point candidates of the second signals. A likelihood output section (150) decides a likelihood of each bit included in the second signals by determining a minimum value of distance.
摘要翻译：要解决的问题：提供可以降低计算复杂度并可以提高通信质量的似然判定装置。解决方案：通过使用QR分解的MLD方法，似然判定装置决定除了在接收到的空间多路复用信号中的最终级中计算的第一信号之外的第二信号中的每个比特的似然性。相邻信号点候选检测部分（120）从由所述第二信号的所有信号点候选提供的第一信号的信号空间上的信号点确定到倒数第二级，所述信号点候选检测部分（120）检测信号中星座中的最近相邻信号点对于第二信号的每个信号点候选具有最小间隔距离的空间。距离计算部（140）针对第二信号的各信号点候补的第二信号和最邻近的信号点的信号点候选，计算与最终级有关的一体变换的接收信号点的距离。似然输出部分（150）通过确定距离的最小值来确定包含在第二信号中的每个比特的可能性。版权所有（C）2012，JPO＆INPIT

22. 发明专利

JP4907743B1 Likelihood determination method and the likelihood determining apparatus 有权
公开(公告)号：JP4907743B1
公开(公告)日：2012-04-04
申请号：JP2011259061
申请日：2011-11-28
申请人：パナソニック株式会社
发明人：透大泉
IPC分类号： H04J99/00 , H04B7/04
CPC分类号： H04L25/0204 , H04L25/0228 , H04L25/0246 , H04L25/03006 , H04L2025/03426
摘要：【課題】演算量を削減でき、通信品質を向上できる尤度決定装置を提供すること。
【解決手段】近傍信号点候補検出部（１２０）が、最終１つ前のステージまでに決定された、空間多重信号のうち第１信号を除く第２信号の信号点候補全てにより得られる第１信号の信号空間上の各信号点から、信号空間上のコンスタレーションの信号点で最小離間距離の最近傍信号点を第２信号の信号点候補毎に検出する。信号点候補選択部（１３０）が、最近傍信号点に対応する各ビットを反転させた上記コンスタレーションの信号点群のうち最も位置が近い信号点を第１信号の各ビットについて選択する。距離算出部（１４０）が、第２信号の信号点候補と、その候補毎の最近傍信号点及び選択された信号点とに対し、最終ステージに係るユリタリ変換後の受信信号点との距離を計算する。尤度出力部（１５０）が、第１信号の各ビットに対し、計算された距離の最小値を判定して尤度を決定する。
【選択図】図２

23. 发明专利

JP4907742B1 Likelihood determination method and the likelihood determining apparatus 有权
公开(公告)号：JP4907742B1
公开(公告)日：2012-04-04
申请号：JP2011259055
申请日：2011-11-28
申请人：パナソニック株式会社
发明人：透大泉
IPC分类号： H04J99/00 , H04B7/04
CPC分类号： H04L25/0204 , H04L25/0228 , H04L25/0246 , H04L25/03006 , H04L2025/03426
摘要：【課題】演算量を削減でき、且つ、通信品質を向上できる尤度決定装置を提供すること。
【解決手段】受信した空間多重信号のうち、最終ステージでのみ計算する第１の信号を除く第２の信号に含まれる各ビットの尤度を、ＱＲ分解を用いるＭＬＤ方式により決定する尤度決定装置であって、近傍信号点候補検出部（１２０）が、最終の１つ前のステージまでに決定された、第２の信号の信号点候補の全てにより得られる第１信号の信号空間上の各信号点から、信号空間上のコンスタレーションの信号点であって離間距離が最小である最近傍信号点を第２の信号の信号点候補毎に検出する。距離算出部（１４０）が、第２の信号の信号点候補と、第２の信号の信号点候補毎の最近傍信号点とを対象に、最終ステージに係るユリタリ変換後の受信信号点との距離を計算する。尤度出力部（１５０）が、第２の信号に含まれる各ビットに対し、距離の内の最小値を判定して尤度を決定する。
【選択図】図２

24. 发明专利

JP2011239017A Communication device and communication method 有权
标题翻译：通信设备和通信方法
公开(公告)号：JP2011239017A
公开(公告)日：2011-11-24
申请号：JP2010106243
申请日：2010-05-06
申请人： Fujitsu Ltd , 富士通株式会社
发明人： SEYAMA TAKASHI
IPC分类号： H04J99/00 , H04B7/04
CPC分类号： H04J11/004 , H04L1/0045 , H04L25/0206 , H04L25/0246 , H04L25/03197 , H04L25/03203 , H04L25/03292 , H04L25/03318 , H04L25/03891
摘要： PROBLEM TO BE SOLVED: To provide a communication device which is capable of reducing an operation amount required to separate multiple transmission signals based on multiple reception signals received through multiple antennas.SOLUTION: A communication device 3 obtains a residual component which is obtained by removing a component corresponding to other transmission signal candidates except a predetermined transmission signal among multiple transmission signals from a signal corresponding to any of multiple reception signals; by making the closest value to the residual component among values the predetermined transmission signal can take as a candidate of the predetermined transmission signal, and by making collection of a pair of the candidate of the predetermined transmission signal and a candidate of another transmission signal as a candidate group, obtains multiple candidate groups by changing the predetermined transmission signals; by selecting a pair of transmission signal candidates common to multiple candidate groups, and calculating a distance between a pair of estimated reception signals corresponding to the pair of transmission signal candidates and the multiple reception signals regarding each of selected pairs of transmission signal candidates, and estimates a pair of transmission signal candidates which has the shortest distance as multiple pairs of transmission signals.
摘要翻译：要解决的问题：提供一种能够基于通过多个天线接收的多个接收信号来减少分离多个发送信号所需的操作量的通信装置。解决方案：通信设备3获得通过从与多个接收信号中的任何一个相对应的信号中去除与多个发送信号之中的预定发送信号之外的其他发送信号候选相对应的分量而获得的残差分量; 通过在预定的传输信号可以作为预定的传输信号的候选值的值中与残差分量最接近的值，并且通过将预定传输信号的候选对和另一个传输信号的候选作为一个候选组，通过改变预定的传输信号来获得多个候选组; 通过选择与多个候选组共同的一对发送信号候补，并计算与一对发送信号候选对应的一对估计接收信号和关于每个所选择的发送信号候选对中的多个接收信号之间的距离，以及估计具有最短距离的一对发送信号候选作为多对发送信号。版权所有（C）2012，JPO＆INPIT

25. 发明专利

JP2011234259A Base station apparatus,terminal device and radio communication system 有权
标题翻译：基站设备，终端设备和无线电通信系统
公开(公告)号：JP2011234259A
公开(公告)日：2011-11-17
申请号：JP2010104732
申请日：2010-04-30
申请人： Sharp Corp , シャープ株式会社
发明人： ONODERA TAKESHI , NAKANO HIROSHI , KUBOTA MINORU , FUJI SHINPEI , HIRATA KOZUE , TOMEBA HIROMICHI
IPC分类号： H04J99/00 , H04B7/04 , H04J11/00 , H04W16/28
CPC分类号： H04B7/0452 , H04J11/0033 , H04L25/0244 , H04L25/0246 , H04L25/03343 , H04L27/2628 , H04L27/265
摘要： PROBLEM TO BE SOLVED: To generate a no-signal state with respect to a certain terminal device without stopping communications between other terminal devices and a base station apparatus.SOLUTION: A base station apparatus 100 is provided with a multi-user MIMO signal generation part 207 which is input with a null symbol for generating a no-signal state (a symbol indicating an original point on a signal point arrangement of a modulation symbol) with respect to a first terminal device and modulation symbols for second to fourth terminal devices, subjects the respective modulation symbols and the null symbol input to a signal processing based on CSI for the respective terminal devices acquired by a CSI acquisition part 226, and generates a multi-user MIMO symbol for each of antennas of an antenna part 224 used for transmission. After the processing, when transmitting a signal to each terminal device, the null symbol for bring into the no-signal state is transmitted to the first terminal device.
摘要翻译：要解决的问题：为了不停止其他终端设备与基站设备之间的通信，就某个终端设备产生无信号状态。解决方案：基站装置100设置有多用户MIMO信号生成部207，该多用户MIMO信号生成部207输入有用于生成无信号状态的空符号（表示信号点配置的原点的符号调制符号）和用于第二至第四终端设备的调制符号，各个调制符号和空符号输入对由CSI获取部分226获取的各个终端设备的基于CSI的信号处理进行主题，并且为用于传输的天线部分224的每个天线生成多用户MIMO符号。在处理之后，当向每个终端设备发送信号时，将用于进入无信号状态的空符号发送到第一终端设备。版权所有（C）2012，JPO＆INPIT

26. 发明专利

JP2011151812A Efficient filter weight computation for mimo system 有权
标题翻译： MIMO系统的有效滤波器重量计算
公开(公告)号：JP2011151812A
公开(公告)日：2011-08-04
申请号：JP2011025957
申请日：2011-02-09
申请人： Qualcomm Inc , クゥアルコム・インコーポレイテッドQualcomm Incorporated
发明人： HOWARD STEVEN J , KETCHUM JOHN W , WALLACE MARK S , MONSEN PETER , WALTON JAY RODNEY
IPC分类号： H04J99/00 , H04B7/04
CPC分类号： H04B7/0854 , H04B7/0413 , H04L25/0246 , H04L25/0248 , H04L2025/03426 , H04L2025/03605 , H04L2025/03611
摘要： PROBLEM TO BE SOLVED: To provide a technique for efficiently deriving a spatial filter matrix. SOLUTION: In a first scheme, a Hermitian matrix is iteratively derived, based on a channel response matrix, and a matrix inversion is calculated indirectly by iteratively deriving the Hermitian matrix. The spatial filter matrix is derived, based on the Hermitian matrix and the channel response matrix. In a second scheme, multiple rotations are performed to iteratively obtain first and second matrices for a pseudo-inverse matrix of the channel response matrix. The spatial filter matrix is derived based on the first and second matrices. In a third scheme, a matrix is formed based on the channel response matrix and decomposed to obtain a unitary matrix and a diagonal matrix. The spatial filter matrix is derived, based on the unitary matrix, the diagonal matrix and the channel response matrix. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于有效地导出空间滤波器矩阵的技术。解决方案：在第一种方案中，基于信道响应矩阵迭代地导出Hermitian矩阵，并且通过迭代地导出Hermitian矩阵来间接计算矩阵求逆。基于Hermitian矩阵和信道响应矩阵导出空间滤波矩阵。在第二方案中，执行多次旋转以迭代地获得用于信道响应矩阵的伪逆矩阵的第一和第二矩阵。基于第一和第二矩阵导出空间滤波器矩阵。在第三方案中，基于信道响应矩阵形成矩阵并分解以获得酉矩阵和对角矩阵。基于单一矩阵，对角矩阵和信道响应矩阵导出空间滤波器矩阵。版权所有（C）2011，JPO＆INPIT

27. 发明专利

JP4682983B2 How to calculate the filter coefficients of the equalizer of the communication receiver using a Hermitian optimization method 有权
公开(公告)号：JP4682983B2
公开(公告)日：2011-05-11
申请号：JP2006535889
申请日：2005-08-12
申请人：日本電気株式会社
发明人：サンゴックブイ
IPC分类号： H04B3/10 , H04L25/03
CPC分类号： H04L25/03038 , H04L25/0246 , H04L2025/03477 , H04L2025/03605

28. 发明专利

JP2010538546A Near soft decision output maximum likelihood detection for multiple input multiple output system 有权
公开(公告)号：JP2010538546A
公开(公告)日：2010-12-09
申请号：JP2010523143
申请日：2008-08-28
申请人：クゥアルコム・インコーポレイテッドQualcomm Incorporated
发明人：アワテル、ゲールト・アルノウト , ウォン、ブライアン , ジョーンズ・ザ・フォース、ビンセント・ケー． , バン・ゼルスト、アルベルト , バン・ネー、ディディエー・ヨハネス・リチャード
IPC分类号： H04J99/00 , H04B7/04
CPC分类号： H04L25/0204 , H04L1/0048 , H04L1/06 , H04L25/0242 , H04L25/0246 , H04L25/067 , H04L27/2601
摘要： Systems and methodologies are described that provide low-complexity soft-output detection for MIMO communication systems. Looping can be performed over a set of constellation points per spatial stream to obtain distance metrics for each of a series of transmitted streams, for which values for the other transmitted streams can be estimated using a MIMO channel matrix and a sub-optimal MIMO algorithm. Examples of MIMO algorithms that can be utilized include Per-Stream List Detection (PSLD), Lattice-Reduced Detection (LRD), and a Guided-M Algorithm. Performance can be further improved by pre-processing the MIMO channel matrix and/or by utilizing techniques for Enhanced Metric Usage (EMU).

29. 发明专利

JP4372155B2 Mimo receiver and mimo reception method 有权
公开(公告)号：JP4372155B2
公开(公告)日：2009-11-25
申请号：JP2006524988
申请日：2005-02-22
申请人：株式会社東芝
发明人：スクラパーリス・デイミトリオス
IPC分类号： H04J99/00 , H04B7/005 , H04B7/02 , H04B7/04 , H04B7/06 , H04B7/08 , H04L1/06 , H04L25/02 , H04W52/42
CPC分类号： H04B7/0619 , H04B7/0417 , H04B7/043 , H04B7/0439 , H04B7/0443 , H04B7/0465 , H04B7/0669 , H04B7/0891 , H04L1/0618 , H04L25/0246 , H04W52/42
摘要： This invention is generally concerned with apparatus, methods and processor control code for MIMO (multiple-input multiple-output) communications systems. An adaptive MIMO communications system comprising a MIMO transmitter (280) and a MIMO receiver (200) and having a feedback path (212) from said receiver (200) to said transmitter (280), said MIMO transmitter (280) including a receiver (282) to receive a feedback signal from said receiver (200) sent via said feedback path (212) and a controller responsive to said feedback signal to configure a MIMO transmission from said transmitter (280) to said receiver (200), said MIMO receiver (200) being configured to receive said MIMO transmission; and wherein said MIMO receiver (200) includes a decision module (210), said decision module (210) having a power indicating input to input a signal indicating a desired receiver power consumption, and an output for sending a MIMO configuration signal to said MIMO transmitter (280), said decision module (210) being configured to determine a MIMO transmission configuration responsive to said power indicating input and to output a MIMO configuration signal for feedback to said transmitter (280) to configure said transmitter (280) in accordance with said determination.

30. 发明专利

JP2009505531A Integrated space-time optimal filter using a Qr and eigenvalue decomposition (jstof) 审中-公开
公开(公告)号：JP2009505531A
公开(公告)日：2009-02-05
申请号：JP2008526342
申请日：2006-08-14
申请人：リサーチインモーションリミテッドResearch In Motion Limited
发明人：ホワンウー， , ゾルタンケメンジー， , ショーンシモンズ，
IPC分类号： H04J99/00 , H04B7/005 , H04B7/02 , H04B7/04 , H04W16/28 , H04W28/18
CPC分类号： H04L25/0248 , H04B1/7105 , H04L25/0208 , H04L25/0212 , H04L25/0228 , H04L25/0246 , H04L25/03038 , H04L2025/03426
摘要：通信受信器内で同一チャネル干渉を低減するフィルタは、多重チャネル時空間フィルタ回路を含むことができ、この回路は、ＱＲ分解および固有値分解に基づいて時空間フィルタ・ウェイトと多重チャネル・インパルス応答（ＣＩＲ）とを統合的に推定することにより、１つの通信信号から分割されたｎ個の信号部にフィルタをかける。フィルタは、さらに、多重チャネル整合フィルタ回路を含んでいるとよく、この回路は、多重チャネル時空間フィルタ回路から多重チャネル信号を受信し、時空間フィルタ回路からのチャネル・インパルス応答推定値によって与えられるフィルタ応答を有する。

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