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11. 发明申请

US20050063500A1 High performance wireless receiver with cluster multipath interference suppression circuit 失效
标题翻译：具有集群多径干扰抑制电路的高性能无线接收机
公开(公告)号：US20050063500A1
公开(公告)日：2005-03-24
申请号：US10889939
申请日：2004-07-13
申请人： Bin Li , Rui Yang , Alexander Reznik , Ariela Zeira
发明人： Bin Li , Rui Yang , Alexander Reznik , Ariela Zeira
IPC分类号： H04B1/7115 , H04B1/00 , H04L25/03 , H04Q20060101 , H04B1/10
CPC分类号： H04B1/7113 , H04B1/7115 , H04L25/03038 , H04L25/03987 , H04L2025/03592
摘要： A receiver which suppresses inter-cluster multipath interference by processing an impulse channel response consisting of two multipath clusters, each cluster having groups of signals with multiple delays. In one embodiment, the receiver includes a single antenna and parallel-connected delay units used to align the groups of signals before being input into respective sliding window equalizers. The outputs of the equalizers are combined at chip level via a combiner which provides a single output. In another embodiment, a Cluster Multipath Interference Suppression (CMIS) circuit is incorporated into the receiver. The CMIS circuit includes a hard decision unit and a plurality of signal regeneration units to generate replicas of the multipath clusters. The replicas are subtracted from the respective outputs of the delay units and the results are input to the respective sliding window equalizers. In another embodiment, multiple antennas are used to receive and process the clusters.
摘要翻译：一种通过处理由两个多径簇组成的脉冲信道响应来抑制簇间多径干扰的接收机，每个簇具有多个延迟的信号组。在一个实施例中，接收机包括单个天线和并联连接的延迟单元，用于在输入到相应的滑动窗口均衡器之前将信号组对准。均衡器的输出通过提供单个输出的组合器在芯片级组合。在另一个实施例中，集群多路径干扰抑制（CMIS）电路并入接收机。 CMIS电路包括硬决策单元和多个信号再生单元以生成多路径簇的副本。从延迟单元的相应输出中减去副本，并将结果输入到各个滑动窗均衡器。在另一个实施例中，使用多个天线来接收和处理簇。

12. 发明申请

US20050031024A1 Reduced complexity sliding window based equalizer 失效
标题翻译：降低复杂性滑动窗口均衡器
公开(公告)号：US20050031024A1
公开(公告)日：2005-02-10
申请号：US10791244
申请日：2004-03-02
申请人： Rui Yang , Bin Li , Alexander Reznik , Ariela Zeira
发明人： Rui Yang , Bin Li , Alexander Reznik , Ariela Zeira
IPC分类号： H04B1/38 , H04L25/02 , H04L25/03
CPC分类号： H04L25/03057 , H04L25/0212 , H04L25/0242 , H04L25/03292 , H04L2025/03605
摘要： A sliding window based data estimation is performed. An error is introduced in the data estimation due to the communication model modeling the relationship between the transmitted and received signals. To compensate for an error in the estimated data, the data that was estimated in a previous sliding window step or terms that would otherwise be truncated as noise are used. These techniques allow for the data to be truncated prior to further processing reducing the data of the window.
摘要翻译：执行基于滑动窗口的数据估计。由于通信模型对发送和接收信号之间的关系建模，在数据估计中引入了误差。为了补偿估计数据中的错误，使用在先前的滑动窗口步骤中估计的数据或否则将被截断为噪声的术语。这些技术允许在进一步处理之前对数据进行截断以减少窗口的数据。

13. 发明授权

US07596171B2 Data detection for codes with non-uniform spreading factors 有权
标题翻译：具有不均匀扩散因子的码的数据检测
公开(公告)号：US07596171B2
公开(公告)日：2009-09-29
申请号：US11962779
申请日：2007-12-21
申请人： Younglok Kim , Jung-Lin Pan , Ariela Zeira , Alexander Reznik
发明人： Younglok Kim , Jung-Lin Pan , Ariela Zeira , Alexander Reznik
IPC分类号： H04B1/707
CPC分类号： H04J13/0044 , H04B1/707 , H04B1/71052 , H04B1/71055 , H04B2201/70703 , H04B2201/70705
摘要： A plurality of communication signals is received. Each communication signal has an associated code. At least two of the communication signals has a different spreading factor. The associated codes have a scrambling code period. A total system response matrix has blocks. Each block has one dimension of a length M and another dimension of a length based on in part M and the spreading factor of each communication. M is based on the scrambling code period. Data of the received plurality of communication signals is received using the constructed system response matrix.
摘要翻译：接收多个通信信号。每个通信信号具有相关代码。至少两个通信信号具有不同的扩展因子。相关代码具有扰码周期。总系统响应矩阵具有块。每个块具有长度M的一维和基于部分M的长度的另一维度和每个通信的扩展因子。 M基于扰码周期。使用所构建的系统响应矩阵来接收所接收的多个通信信号的数据。

14. 发明申请

US20050169198A1 Base station midamble selection 审中-公开
标题翻译：基站midamble选择
公开(公告)号：US20050169198A1
公开(公告)日：2005-08-04
申请号：US11098733
申请日：2005-04-04
申请人： Ariela Zeira , Eldad Zeira , Alexander Reznik , Stephen Terry
发明人： Ariela Zeira , Eldad Zeira , Alexander Reznik , Stephen Terry
IPC分类号： H04B1/707 , H04B1/7073 , H04B1/7093 , H04B1/7103 , H04B1/7105 , H04B7/00 , H04J3/00 , H04J11/00 , H04J13/00 , H04J13/16 , H04Q7/38 , H04B1/69
CPC分类号： H04B1/7103 , H04B1/707 , H04B1/70735 , H04B1/7105 , H04B2001/70935 , H04B2201/70701 , H04B2201/70709 , H04J13/00 , H04J13/16
摘要： Midamble codes are selected in a wireless time division duplex communication system. At least one channelization code is assigned to a user equipment. A mapping is provided between midamble codes and channelization codes. At least one midamble code is mapped to a plurality of channelization codes having a same spreading factor. The midamble code mapped to the at least one channelization code to the user equipment is selected. A communication burst is formed with the assigned at least one channelization code and the selected midamble code.
摘要翻译：在无线时分双工通信系统中选择Midamble码。至少一个信道化码被分配给用户设备。在中间码和信道化码之间提供映射。至少一个中间码代码被映射到具有相同扩频因子的多个信道化码。选择映射到用户设备的至少一个信道化码的中间码。形成具有分配的至少一个信道化码和所选择的中置码的通信突发。

15. 发明申请

US20100020856A1 DATA DETECTION FOR CODES WITH NON-UNIFORM SPREADING FACTORS 有权
标题翻译：具有非均匀扩展因子的代码的数据检测
公开(公告)号：US20100020856A1
公开(公告)日：2010-01-28
申请号：US12549959
申请日：2009-08-28
申请人： Younglok Kim , Jung-Lin Pan , Ariela Zeira , Alexander Reznik
发明人： Younglok Kim , Jung-Lin Pan , Ariela Zeira , Alexander Reznik
IPC分类号： H04B1/707
CPC分类号： H04J13/0044 , H04B1/707 , H04B1/71052 , H04B1/71055 , H04B2201/70703 , H04B2201/70705
摘要： A plurality of communication signals is received. Each communication signal has an associated code. At least two of the communication signals has a different spreading factor. The associated codes have a scrambling code period. A total system response matrix has blocks. Each block has one dimension of a length M and another dimension of a length based on in part M and the spreading factor of each communication. M is based on the scrambling code period. Data of the received plurality of communication signals is received using the constructed system response matrix.
摘要翻译：接收多个通信信号。每个通信信号具有相关代码。至少两个通信信号具有不同的扩展因子。相关代码具有扰码周期。总系统响应矩阵具有块。每个块具有长度M的一维和基于部分M的长度的另一维度和每个通信的扩展因子。 M基于扰码周期。使用所构建的系统响应矩阵来接收所接收的多个通信信号的数据。

16. 发明授权

US06934271B2 Support of multiuser detection in the downlink 有权
标题翻译：支持下行多用户检测
公开(公告)号：US06934271B2
公开(公告)日：2005-08-23
申请号：US09775969
申请日：2001-02-02
申请人： Ariela Zeira , Eldad Zeira , Alexander Reznik , Stephen E. Terry
发明人： Ariela Zeira , Eldad Zeira , Alexander Reznik , Stephen E. Terry
IPC分类号： H04B1/707 , H04B1/7073 , H04B1/7093 , H04B1/7103 , H04B1/7105 , H04B7/00 , H04J3/00 , H04J11/00 , H04J13/00 , H04J13/16 , H04Q7/38 , H04Q7/00
CPC分类号： H04B1/7103 , H04B1/707 , H04B1/70735 , H04B1/7105 , H04B2001/70935 , H04B2201/70701 , H04B2201/70709 , H04J13/00 , H04J13/16
摘要： A wireless time division duplex communication system using code division multiple access has a base station and user equipments. The system communicates using communication bursts. Each communication burst has a unique channelization code and a midamble code. Each midamble code is mapped to a set of at least one channelization code. For each communication burst to be transmitted in a time slot from the base station, the midamble code mapped to that burst's channelization code is determined. Communication bursts are generated and transmitted in the time slot. Each burst has the determined midamble code for its channelization code. The user equipment receives the bursts and determines each received midamble code. The user equipment determines the channelization codes of the transmitted communication bursts based on in part a result of the determining of each received midamble code.
摘要翻译：使用码分多址的无线时分双工通信系统具有基站和用户设备。系统使用通信突发进行通信。每个通信突发具有唯一的信道化码和中间码。每个中间码代码被映射到一组至少一个信道化码。对于要在基站的时隙中发送的每个通信突发，确定映射到该突发的信道化码的中间码。在时隙中生成和发送通信突发。每个突发具有确定的其信道化码的中间码码。用户设备接收突发并确定每个接收到的中间码。用户设备部分地基于确定每个接收到的中间码的结果来确定所发送的通信脉冲串的信道化码。

17. 发明授权

US07778232B2 Multiuser detector for variable spreading factors 有权
标题翻译：用于可变扩散因子的多用户检测器
公开(公告)号：US07778232B2
公开(公告)日：2010-08-17
申请号：US11588454
申请日：2006-10-27
申请人： Alexander Reznik , Timothy J. Lubecki , Ariela Zeira
发明人： Alexander Reznik , Timothy J. Lubecki , Ariela Zeira
IPC分类号： H04B7/216 , H04J1/16
CPC分类号： H04B1/7105 , H04B1/7093 , H04B1/71052 , H04B2201/70703 , H04B2201/70705
摘要： A multiuser detector method and receiver that detects and decodes synchronous or asynchronous CDMA subchannels having different spreading factors with reduced computational complexity. The multiuser receiver is compatible with ZF-BLE, MMSE, decorrelating detectors and the like using Cholesky decomposition to minimize numeric operations. The receiver and method arranges the columns of system transmission response matrices representing the response characteristics of individual users into a total system transmission response matrix which represents a plurality of matched-filter responses for a given block of received data. The invention when used in conjunction with Cholesky decomposition reduces the number of required mathematic operations prior to parallel matched filtering.
摘要翻译：一种多用户检测器方法和接收机，其检测和解码具有不同扩展因子的同步或异步CDMA子信道，并降低计算复杂度。多用户接收机与使用Cholesky分解的ZF-BLE，MMSE，去相关检测器等兼容，以最小化数字运算。接收器和方法将表示各个用户的响应特性的系统传输响应矩阵的列排列成表示针对给定的接收数据块的多个匹配滤波器响应的总系统传输响应矩阵。当与Cholesky分解结合使用时，本发明在并行匹配滤波之前减少了所需数学运算的数量。

18. 发明申请

US20080198828A1 Multiuser detector for variable spreading factors 有权
标题翻译：用于可变扩散因子的多用户检测器
公开(公告)号：US20080198828A1
公开(公告)日：2008-08-21
申请号：US11588454
申请日：2006-10-27
申请人： Alexander Reznik , Timothy J. Lubecki , Ariela Zeira
发明人： Alexander Reznik , Timothy J. Lubecki , Ariela Zeira
IPC分类号： H04B7/216 , H04B1/707 , H04J13/02
CPC分类号： H04B1/7105 , H04B1/7093 , H04B1/71052 , H04B2201/70703 , H04B2201/70705
摘要： A multiuser detector method and receiver that detects and decodes synchronous or asynchronous CDMA subchannels having different spreading factors with reduced computational complexity. The multiuser receiver is compatible with ZF-BLE, MMSE, decorrelating detectors and the like using Cholesky decomposition to minimize numeric operations. The receiver and method arranges the columns of system transmission response matrices representing the response characteristics of individual users into a total system transmission response matrix which represents a plurality of matched-filter responses for a given block of received data. The invention when used in conjunction with Cholesky decomposition reduces the number of required mathematic operations prior to parallel matched filtering.
摘要翻译：一种多用户检测器方法和接收机，其检测和解码具有不同扩展因子的同步或异步CDMA子信道，并降低计算复杂度。多用户接收机与使用Cholesky分解的ZF-BLE，MMSE，去相关检测器等兼容，以最小化数字运算。接收器和方法将表示各个用户的响应特性的系统传输响应矩阵的列排列成表示针对给定的接收数据块的多个匹配滤波器响应的总系统传输响应矩阵。当与Cholesky分解结合使用时，本发明在并行匹配滤波之前减少了所需数学运算的数量。

19. 发明授权

US07136369B2 Multiuser detector for variable spreading factors 有权
公开(公告)号：US07136369B2
公开(公告)日：2006-11-14
申请号：US10100997
申请日：2002-03-19
申请人： Alexander Reznik , Timothy J. Lubecki , Ariela Zeira
发明人： Alexander Reznik , Timothy J. Lubecki , Ariela Zeira
IPC分类号： H04B7/216
CPC分类号： H04B1/7105 , H04B1/7093 , H04B1/71052 , H04B2201/70703 , H04B2201/70705
摘要： A multiuser detector that detects and decodes synchronous or asynchronous CDMA subchannels having different spreading factors with reduced computational complexity. The multiuser detector is compatible with ZF-BLE, MMSE, decorrelating detectors and the like using Cholesky decomposition to minimize numeric operations. The system and method arranges the columns of system transmission response matrices representing the response characteristics of individual users into a total system transmission response matrix which represents a plurality of matched-filter responses for a given block of received data. The invention in conjunction with Cholesky decomposition reduces the number of required mathematic operations prior to parallel matched filtering.

20. 发明授权

US06795417B2 User equipment with multiuser detection 有权
标题翻译：用户设备具有多用户检测功能
公开(公告)号：US06795417B2
公开(公告)日：2004-09-21
申请号：US10090372
申请日：2002-03-04
申请人： Ariela Zeira , Eldad Zeira , Alexander Reznik , Stephen E. Terry
发明人： Ariela Zeira , Eldad Zeira , Alexander Reznik , Stephen E. Terry
IPC分类号： H04B7216
CPC分类号： H04B1/7103 , H04B1/707 , H04B1/70735 , H04B1/7105 , H04B2001/70935 , H04B2201/70701 , H04B2201/70709 , H04J13/00 , H04J13/16
摘要： A user equipment (UE) for a wireless time division duplex communication system which uses code division multiple access. The system communicates using communication bunts that have unique channelization codes and corresponding midamble codes where each midamble code is uniquely related to one or more channelization codes. The UE has a midamble detector which detects each midamble code in a received communication burst. A logic block determines the channelization codes related to each detected midamble and a channelization code detector detects channelization codes from among channelization codes determined by the logic block. A multiuser detection device recovers data from the received communication burst based on the detected channelization codes. Where all midamble codes are uniquely related to one channelization code, the channelization code detector is not needed.
摘要翻译：一种用于无线时分双工通信系统的用户设备（UE），其使用码分多址。该系统使用具有唯一的信道化码和相应的中间码的通信脉冲串，其中每个中间码与唯一的一个或多个信道化码有关。 UE具有在接收到的通信突发中检测每个中间码的中置码检测器。逻辑块确定与每个检测到的中间码相关的信道化码，并且信道化码检测器从由逻辑块确定的信道化码中检测信道化码。多用户检测装置基于检测到的信道化码从接收到的通信突发中恢复数据。在所有midamble码与一个信道化码唯一相关的情况下，不需要信道化码检测器。

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