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21. 发明公开

EP2873157A2 MULTI-MODE RECEIVER FOR HIGHLY-SPECTRALLY-EFFICIENT COMMUNICATIONS 有权转让
标题翻译：多式联运站IN高效频谱通信
公开(公告)号：EP2873157A2
公开(公告)日：2015-05-20
申请号：EP13806419.1
申请日：2013-06-14
申请人： Magnacom Ltd.
发明人： ELIAZ, Amir
IPC分类号： H04B1/12 , H04W88/06
CPC分类号： H04L1/0041 , G06F11/10 , H04B1/0475 , H04B1/10 , H04B1/16 , H04B1/709 , H04B17/0085 , H04B17/15 , H04B17/29 , H04B2001/0416 , H04L1/0036 , H04L1/0048 , H04L1/005 , H04L1/0054 , H04L1/203 , H04L1/206 , H04L7/0058 , H04L7/0087 , H04L7/02 , H04L7/042 , H04L23/02 , H04L25/0236 , H04L25/03006 , H04L25/03038 , H04L25/03057 , H04L25/03178 , H04L25/03197 , H04L25/03267 , H04L25/0328 , H04L25/03305 , H04L25/03318 , H04L25/03337 , H04L25/03343 , H04L25/03834 , H04L25/03885 , H04L25/03949 , H04L25/08 , H04L27/00 , H04L27/01 , H04L27/02 , H04L27/04 , H04L27/2278 , H04L27/36 , H04L27/366 , H04L27/368 , H04L27/38 , H04L2025/03369
摘要： A system may comprise circuitry that includes a sequence estimation circuit and a non-linearity modeling circuit. The circuitry may be operable to receive a single-carrier signal that was generated by passage of symbols through a partial response filter and through a non-linear circuit. The circuitry may be operable to generate estimated values of the symbols using the sequence estimation circuit and using the non-linearity modeling circuit. An output of the non-linearity modeling circuit may be equal to a corresponding input of the non-linearity modeling circuit modified according to a non-linear model that approximates the non-linearity of the non-linear circuit through which the received signal passed.

22. 发明公开

EP2865149A2 HIGHLY-SPECTRALLY-EFFICIENT RECEPTION USING ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING 审中-公开
标题翻译：在HOHEM MASSE SPEKTRUMSEFFIZIENTER EMPFANG MITTELS OFDM
公开(公告)号：EP2865149A2
公开(公告)日：2015-04-29
申请号：EP13812878.0
申请日：2013-06-20
申请人： Magnacom Ltd. , Eliaz, Amir , Reuven, Ilan
发明人： ELIAZ, Amir , REUVEN, Ilan
IPC分类号： H04L25/08
CPC分类号： H04L27/2628 , H04L1/0054 , H04L25/02 , H04L25/03038 , H04L25/03159 , H04L25/03197 , H04L25/03821 , H04L25/497 , H04L27/2647 , H04L27/3405 , H04L2025/03414 , H04L2025/0342 , H04L2025/03522
摘要： Circuitry for use in a receiver may comprise: a front-end circuit operable to receive an orthogonal frequency division multiplexing (OFDM) symbol on a first number of physical subcarriers. The circuitry may comprise a decoding circuit operable to decode the OFDM symbol using an inter-carrier interference (ICI) model, the decoding resulting in a determination of a sequence of symbols, comprising a second number of symbols, that most-likely correspond to the received OFDM symbol, where the second number is greater than the first number. The sequence of symbols may comprise N- QAM symbols, N being an integer. The ISCI model may be based, at least in part, on non-linearity experienced by the OFDM symbol during transmission by a transmitter, propagation over a channel, and/or reception by the receiver. The ISCI model may be based, at least in part, on phase-noise introduced to the OFDM symbol during transmission by a transmitter, propagation over a channel, and/or reception by the receiver.
摘要翻译：用于接收机的电路可以包括：前端电路，其可操作以在第一数量的物理子载波上接收正交频分复用（OFDM）符号。电路可以包括解码电路，其可操作以使用载波间干扰（ICI）模型来解码OFDM符号，所述解码导致确定符号序列，其包括第二数量的符号，其最可能对应于接收的OFDM符号，其中第二个数字大于第一个数字。符号序列可以包括N-QAM符号，N是整数。至少部分地，ISCI模型可以基于发送器发送期间由OFDM符号经历的非线性度，通过信道传播和/或接收器的接收。 ISCI模型至少部分地基于由发射机传输期间引入到OFDM符号的相位噪声，在信道上传播和/或由接收机接收。

23. 发明公开

EP2051462A3 Verfahren und Vorrichtung zur Detektion von Sendesignalen in einer Multi-Layer-Übertragung 有权
标题翻译：在多层传输方法和装置，用于检测传输信号的
公开(公告)号：EP2051462A3
公开(公告)日：2013-04-03
申请号：EP08016204.3
申请日：2008-09-15
申请人： Rohde & Schwarz GmbH & Co. KG
发明人： Detert, Thorben
IPC分类号： H04L25/03 , H04L1/06
CPC分类号： H04L25/0246 , H04L25/03006 , H04L25/03178 , H04L25/03184 , H04L25/03197 , H04L2025/03426
摘要： Ein Verfahren und eine Vorrichtung zur Detektion von mehreren, von jeweils einer Sendeantenne abgestrahlten Sendesignalen ( s ) aus mehreren, in jeweils einer Empfangsantenne empfangenen Empfangssignalen ( ) führt eine Q·R -Zerlegung einer Übertragungskanalmatrix ( H ) in eine orthogonale Matrix Q = H und eine Dreiecksmatrix (R) durch. Die Übertragungskanalmatrix ( H ) weist gegenüber einer Übertragungskanalmatrix ( H ) zwischen den einzelnen Sende- und den einzelnen Empfangsantennen verlängerte, mit jeweils einem Faktor η besetzte Spaltenvektoren ( ) auf. Das Verfahren ermittelt eine Metrik ( M ( s̃ ) aus der betragsquadrierten Differenz ‖ Q = H ⋅ r ̲ = - R = ⋅ s ˜ ‖ 2 zwischen den mit der orthogonalen Matrix Q = H vorgefilterten Empfangssignalen Q = H ⋅ r ̲ = und den mit der Dreiecksmatrix ( R ) gewichteten, zu den einzelnen Sendesignalen ( s ) jeweils gehörigen Hypothesen ( s̃ ) und schätzt die Sendesignale ( s ) durch Minimierung der Metrik ( M ( s̃ )).

24. 发明授权

EP1106004B1 LOW COMPLEXITY DECISION FEEDBACK SEQUENCE ESTIMATION 有权
标题翻译：决定BACK综合影响估计低复杂度
公开(公告)号：EP1106004B1
公开(公告)日：2011-10-05
申请号：EP99943586.0
申请日：1999-08-17
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： JÄVERBRING, Stefan
IPC分类号： H04L25/03 , H03M13/00
CPC分类号： H03M13/6331 , H03M13/39 , H03M13/41 , H03M13/6502 , H03M13/6505 , H04L25/03197 , H04L25/03235
摘要： A Decision Feedback Sequence Estimator (DFSE) metric is determined by storing one or more tables of Decision Feedback Estimation (DFE) hypotheses in a memory, and then using values of the DFE hypotheses that are retrieved from storage to determine the DFSE metric. The DFE hypotheses may be precalculated (509) and stored into the memory (511) prior to performance of any retrieval operation. Alternatively, the table may start out empty, and the DFE hypotheses may be determined as needed for a particular DFSE metric computation. The determined DFE metric may then be stored into a table for later retrieval if the metric is needed again. The DFE hypotheses may be stored into a single table or, to reduce memory requirements and computational complexity, may be stored into corresponding ones of plural tables. MLSE hypotheses, which are also used in the DFSE metric determination, may similarly be stored into one or more tables (503, 505) for later retrieval as needed.

25. 发明公开

EP2263356A2 MIMO SPHERE DETECTION WITH PARALLEL DISTRIBUTED NODE PROCESSING 有权
标题翻译：作者MIMO球，并行分布式节点处理检测
公开(公告)号：EP2263356A2
公开(公告)日：2010-12-22
申请号：EP09717090.6
申请日：2009-03-06
申请人： Interuniversitair Microelektronica Centrum (IMEC) , Katholieke Universiteit Leuven, K.U. Leuven R&D
发明人： MIN, Li , BOUGARD, Bruno
IPC分类号： H04L27/26 , H04L25/03 , H04L1/06
CPC分类号： H04L25/03203 , H04L25/03197 , H04L25/03242 , H04L27/2647 , H04L2025/0342 , H04L2025/03426
摘要： The present invention is related to method for detecting a symbol transmitted over a communication channel in a multiple input-multiple output communication system by performing sphere detection. A parallel processing performing a distributed-greedy-algorithm for the tree search is proposed. It is based on a local minimization at each node of an increment of the Partial Euclidean Distance. Further the number of children expanded from a node is limited to a constant, independent from the constellation size.

26. 发明授权

EP1152576B8 Joint estimation using the M-algorithm or T-algorithm in multiantenna systems 有权
标题翻译：在多天线系统中使用M算法或T算法进行联合估计
公开(公告)号：EP1152576B8
公开(公告)日：2009-12-23
申请号：EP00303784.3
申请日：2000-05-05
申请人： Agere Systems, Inc.
发明人： Awater, Geert Arnout , Van Nee, Didier Johannes Richard
IPC分类号： H04L25/03
CPC分类号： H04L25/03197 , H04L25/03216 , H04L25/03222 , H04L25/03331

27. 发明公开

EP1997247A2 NON-DATA-AIDED CHANNEL ESTIMATORS FOR MULTIPATH AND MULTIPLE ANTENNA WIRELESS SYSTEMS 审中-公开
标题翻译：不是数据辅助频道预测无线多向多天线系统
公开(公告)号：EP1997247A2
公开(公告)日：2008-12-03
申请号：EP07710691.2
申请日：2007-03-07
申请人： The Governors of the University of Alberta
发明人： BEAULIEU, Norman, C. , CHEN, Yunfel
IPC分类号： H04B17/00 , H04B15/00 , H04B7/005 , H04L1/00 , H04L27/14
CPC分类号： H04L25/03197 , H04B1/71637 , H04L25/03292
摘要： Novel non-data-aided maximum likelihood estimators for the delays and the attenuations in an ultra-wide bandwidth channel are proposed. Numerical results show that these new estimators outperform the previous non-data-aided maximum likelihood channel estimators derived in the literature. Moreover, in some cases, the performances of the new non-data-aided estimators approach those of the data-aided estimators, enabling us to reduce the overhead expense of pilot symbols.

28. 发明公开

EP1900164A2 COMMUNICATIONS CHANNEL SYMBOL RECOVERY BY COMBINING OUTPUTS AT DIFFERENT DECISION DELAYS 无效
标题翻译：通信信道符号已回收通过合并问题进行不同的决策延误
公开(公告)号：EP1900164A2
公开(公告)日：2008-03-19
申请号：EP06771182.0
申请日：2006-05-25
申请人： Motorola, Inc.
发明人： BACHU, Raja, S. , BUCKLEY, Michael, E. , STEWART, Kenneth, A. , WILKINS, Clint, S.
IPC分类号： H04L25/02 , H04B1/707 , H04L25/06 , H04L25/03
CPC分类号： H04L25/067 , H04B1/7117 , H04B1/712 , H04L25/0224 , H04L25/03197
摘要： A method and apparatus for communications channel symbol recovery that improves equalizer performance adds together the log-likelihood ratios (LLRs) of different decision delays rather than using LLRs corresponding only to a single decision delay. A low complexity method comprises, determining an initial coarse delay and a set of fine delays (1003), estimating a training sequence and filter taps set for each fine delay (1007), determining an error function for each fine delay (1009), and linearly combining the filter taps (1013) for determining the symbol estimates (1017).

29. 发明公开

EP1897224A1 SPHERE DECODING APARATUS FOR MIMO CHANNEL 失效
标题翻译：圆球DECODE设备技术MIMO信道
公开(公告)号：EP1897224A1
公开(公告)日：2008-03-12
申请号：EP06771903.9
申请日：2006-06-01
申请人： QUALCOMM INCORPORATED
发明人： SAMPATH, Hemanth , KADOUS, Tamer
IPC分类号： H03M13/41 , H04L1/06 , H04B7/08
CPC分类号： H04L25/03242 , H03M13/45 , H04B7/04 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/0048 , H04L1/0066 , H04L1/06 , H04L1/0631 , H04L1/0656 , H04L25/03197 , H04L27/2601 , H04L27/38 , H04L2025/03414
摘要： Method and apparatuses for decoding codewords over a MIMO channel are provided. According to one aspect of the disclosure, a cost function is computed for each constellation point of an Mth rank or spatial layer and Ncand of those constellation points having minimum cost are preserved as candidate points, where Ncand is a parameter specified to the decoding algorithm. In addition, a cost function may be computed for all possible transitions from the Ncand candidate points of the Mth rank to ail possible constellations points of the (M-1)th spatial layer, and A^ of those transitions having minimum cost are preserved as candidate points. The process is repeated for all spatial layers, resulting in the identification of Ncand candidate codewords and their associated cost functions. The algorithm is derived from the list sphere decoding method.

30. 发明授权

EP1297669B1 VITERBI-ENTZERRUNG MITTELS VORAUSBERECHNETER METRIKINKREMENTE 有权
标题翻译：维特比均衡BY预先支付费用的增量指标
公开(公告)号：EP1297669B1
公开(公告)日：2006-02-15
申请号：EP01956265.1
申请日：2001-06-11
申请人： Infineon Technologies AG
发明人： BECKER, Burkhard , BOHNHOFF, Peter , YANG, Bin
IPC分类号： H04L25/03
CPC分类号： H03M13/6331 , H03M13/4107 , H03M13/6502 , H03M13/6505 , H03M13/6569 , H04L25/03197
摘要： The invention relates to a Viterbi equalizer for equalizing a data signal, which has been transmitted via a disturbed channel. Said equalizer has at least one Add-Compare-Select (ACS) unit, which carries out an ACS operation for each channel state in a time interval k. The equalizer also comprises a unit (CAL1, CAL2) for precalculating and saving metrics increments, said unit precalculating the increments with reference to all transitions from a predeterminable state in the time interval k to the states in time interval k+1 that can be attained by the transitions and stores them in an output memory (ASP), so that they are available for retrieval by the ACS unit.

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