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公开(公告)号：US07133459B2
公开(公告)日：2006-11-07
申请号：US10135679
申请日：2002-04-30
申请人： Eko N. Onggosanusi , Anand G. Dabak
发明人： Eko N. Onggosanusi , Anand G. Dabak
IPC分类号： H04B7/02
CPC分类号： H04L1/0071 , H04B7/0613 , H04B7/0615 , H04B7/0669 , H04B7/0697 , H04B7/0837 , H04L1/0055 , H04L1/0618
摘要： A linear transformation of parallel space-time transmit diversity encoded streams; also, asymmetrical symbol mapping of parallel streams. Separately or together, these improve error rate performance as well as system throughput. Preferred embodiments include CDMA wireless systems with multiple antennas.
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42.发明授权Code division multiple access wireless system with closed loop mode using ninety degree phase rotation and beamformer verification 有权码分多址无线系统采用闭环模式，采用九十度相位旋转和波束形成器验证公开(公告)号：US06831943B1
公开(公告)日：2004-12-14
申请号：US09635715
申请日：2000-08-09
申请人： Anand G. Dabak , Eko N. Onggosanusi
发明人： Anand G. Dabak , Eko N. Onggosanusi
IPC分类号： H04B169
CPC分类号： H04B7/0615 , H04B7/0617 , H04B7/0634 , H04B7/0645 , H04B7/0654 , H04B7/0857 , H04B17/104 , H04B17/24
摘要： A wireless communication system (10). The system comprises a user station (12). The user station comprises despreading circuitry (22) for receiving and despreading a plurality of slots received from at least a first transmit antenna (A121) and a second transmit antenna (A122) at a transmitting station (14). Each of the plurality of slots comprises a first channel (DPCH) comprising a first set of pilot symbols and a second channel (PCCPCH) comprising a second set of pilot symbols. The user station further comprises circuitry (50) for measuring a first channel measurement (&agr;1,n) for each given slot in the plurality of slots from the first transmit antenna and in response to the first set of pilot symbols in the given slot. The user station further comprises circuitry (50) for measuring a second channel measurement (&agr;2,n) for each given slot in the plurality of slots from the second transmit antenna and in response to the first set of pilot symbols in the given slot. The user station further comprises circuitry (52) for measuring a phase difference value (&phgr;2(n)) for each given slot in the plurality of slots in response to the first channel measurement and the second channel measurement for the given slot and in response to a ninety degree rotation of the given slot relative to a slot which was received by the despreading circuitry immediately preceding the given slot.
摘要翻译： 一种无线通信系统（10）。 该系统包括用户站（12）。 用户站包括解扩电路（22），用于在发射站（14）处接收和解扩从至少第一发射天线（A121）和第二发射天线（A122）接收的多个时隙。 多个时隙中的每一个包括包括第一组导频符号的第一信道（DPCH）和包括第二组导频符号的第二信道（PCCPCH）。 用户站还包括用于测量来自第一发射天线的多个时隙中的每个给定时隙的第一信道测量（α1，n）以及响应于给定时隙中的第一组导频符号的电路（50）。 用户站还包括电路（50），用于响应于给定时隙中的第一组导频符号，测量来自第二发射天线的多个时隙中的每个给定时隙的第二信道测量（α2，n）。 用户站还包括电路（52），用于响应于给定时隙的第一信道测量和第二信道测量以及响应于第二信道测量而测量多个时隙中的每个给定时隙的相位差值（phi2（n））， 给定时隙相对于由紧接在给定时隙之前的解扩电路接收的时隙的九十度旋转。
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公开(公告)号：US10044532B2
公开(公告)日：2018-08-07
申请号：US11688756
申请日：2007-03-20
IPC分类号： H04B7/02 , H04L1/02 , H04L25/03 , H04B7/0417 , H04B7/06 , H04L1/06 , H04L1/00 , H04L5/00 , H04L25/02 , H04L27/26
摘要： The present invention provides a receiver. In one embodiment, the receiver includes a receive portion employing transmission signals from a transmitter having multiple antennas and capable of providing channel estimates. The receiver also includes a feedback generator portion configured to provide to the transmitter a pre-coder selection for data transmission that is based on the channel estimates, wherein the pre-coder selection corresponds to a grouping of frequency-domain resource blocks. The present invention also provides a transmitter having multiple antennas. In one embodiment, the transmitter includes a transmit portion coupled to the multiple antennas and capable of applying pre-coding to a data transmission for a receiver. The transmitter also includes a feedback decoding portion configured to decode a pre-coder selection for the data transmission that is fed back from the receiver, wherein the pre-coder selection corresponds to a grouping of frequency-domain resource blocks.
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公开(公告)号：US08830984B2
公开(公告)日：2014-09-09
申请号：US13437719
申请日：2012-04-02
CPC分类号： H04W56/001 , H04B7/2681 , H04J11/0069 , H04J2011/0096 , H04L9/12 , H04L2209/80 , H04W36/0016 , H04W56/0015
摘要： Embodiments of the present disclosure provide a transmitter, a receiver and methods of operating a transmitter and a receiver. In one embodiment, the transmitter includes a synchronization unit configured to provide a primary synchronization signal and a secondary synchronization signal having first and second segments. The transmitter also includes a secondary scrambling unit configured to provide a scrambled secondary synchronization signal, wherein scrambling agents for the first and second segments are derived from a primary synchronization sequence of the primary synchronization signal. The secondary scrambling unit is further configured to provide an additional scrambling of one of the first and second segments, wherein a second scrambling agent is derived from the remaining segment of a secondary synchronization sequence of the secondary synchronization signal. The transmitter further includes a transmit unit configured to transmit the primary synchronization signal and the scrambled secondary synchronization signal.
摘要翻译： 本公开的实施例提供发射机，接收机和操作发射机和接收机的方法。 在一个实施例中，发射机包括配置成提供主同步信号和具有第一和第二段的辅同步信号的同步单元。 发射机还包括辅助加扰单元，其被配置为提供加扰的次同步信号，其中第一和第二段的加扰代码从主同步信号的主同步序列导出。 次加扰单元还被配置为提供第一和第二段中的一个的附加加扰，其中从副同步信号的辅同步序列的剩余段导出第二加扰代码。 发射机还包括被配置为发送主同步信号和加扰的次同步信号的发射单元。
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45.发明授权公开(公告)号：US08290098B2
公开(公告)日：2012-10-16
申请号：US10026278
申请日：2001-12-18
申请人： Eko N. Onggosanusi , Anand G Dabak
发明人： Eko N. Onggosanusi , Anand G Dabak
CPC分类号： H04B7/0417 , H04B1/7115 , H04B7/0634 , H04B7/082 , H04B7/0854 , H04B2201/70702 , H04L1/0001 , H04L1/0025 , H04L1/0029 , H04L1/0675 , H04L25/03343 , H04L2025/03375
摘要： A wireless receiver (74) for receiving signals from a transmitter (72). The transmitter comprises a plurality of transmit antennas (TAT1′, TAT2′) for transmitting the signals, which comprise respective independent streams of symbols. Additionally, interference occurs between the respective streams. The receiver comprises a plurality of receive antennas (RAT1′, RAT2′) for receiving the signals as influenced by a channel effect between the receiver and the transmitter. The receiver also comprises circuitry (80) for multiplying the signals times a conjugate transpose of an estimate of the channel effect and times a conjugate transpose of a linear basis transformation matrix. The receiver also comprises circuitry (84) for selecting the linear basis transformation matrix from a finite set of linear basis transformation matrices. Lastly, the receiver comprises circuitry (88) for removing the interference between the respective streams.
摘要翻译： 一种用于从发射机（72）接收信号的无线接收机（74）。 发射机包括用于发送信号的多个发射天线（TAT1'，TAT2'），其包括相应的独立的符号流。 另外，在各个流之间发生干扰。 接收机包括多个接收天线（RAT1'，RAT2'），用于接收由接收机和发射机之间的信道效应影响的信号。 接收机还包括用于将信号乘以信道效应的估计的共轭转置乘以线性基变换矩阵的共轭转置次数的电路（80）。 接收机还包括用于从有限线性基变换矩阵组中选择线性基变换矩阵的电路（84）。 最后，接收机包括用于消除各个流之间的干扰的电路（88）。
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公开(公告)号：US20120008718A1
公开(公告)日：2012-01-12
申请号：US13237543
申请日：2011-09-20
申请人： Anand G. Dabak , Eko N. Onggosanusi
发明人： Anand G. Dabak , Eko N. Onggosanusi
CPC分类号： H04B7/0456 , H04B7/0417 , H04B7/0619 , H04L5/023 , H04L25/0206 , H04L27/2608
摘要： Various wireless precoding systems and methods are presented. In some embodiments, a wireless transmitter comprises an antenna precoding block, a transform block, and multiple transmit antennas. The antenna precoding block receives frequency coefficients from multiple data streams and distributes the frequency coefficients across multiple transmit signals in accordance with frequency-dependent matrices. The transform block transforms the precoded frequency coefficients into multiple time domain transmit signals to be transmitted by the multiple antennas. The frequency coefficients from multiple data streams may be partitioned into tone groups, and all the frequency coefficients from a given tone group may be redistributed in accordance with a single matrix for that tone group. In some implementations, the frequency coefficients within a tone group for a given data stream may also be precoded. In some alternative embodiments, tone group precoding may be employed in a single channel system.
摘要翻译： 提出了各种无线预编码系统和方法。 在一些实施例中，无线发射机包括天线预编码块，变换块和多个发射天线。 天线预编码块从多个数据流接收频率系数，并根据频率依赖矩阵在多个发射信号之间分配频率系数。 变换块将预编码的频率系数转换成由多个天线发射的多个时域发射信号。 来自多个数据流的频率系数可以被划分为音调组，并且来自给定音调组的所有频率系数可以根据该音调组的单个矩阵重新分配。 在一些实现中，给定数据流的音调组内的频率系数也可以被预编码。 在一些替代实施例中，音调组预编码可以用于单个信道系统中。
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47.发明授权Multipath interference-resistant receivers for closed-loop transmit diversity (CLTD) in code-division multiple access (CDMA) systems 有权用于码分多址（CDMA）系统中的闭环发射分集（CLTD）的多径抗干扰接收机公开(公告)号：US07961774B2
公开(公告)日：2011-06-14
申请号：US10687303
申请日：2003-10-14
申请人： Eko N. Onggosanusi , Anand G. Dabak
发明人： Eko N. Onggosanusi , Anand G. Dabak
IPC分类号： H04B1/69
CPC分类号： H04B7/0634 , H04B7/0654 , H04B7/0854 , H04L1/0023 , H04L25/0202 , H04L25/0328 , H04L25/03292
摘要： System and method for providing interference resistance in communications systems using closed-loop transmit diversity (CLTD). A preferred embodiment comprises: at a receiver, computing a CLTD weighting vector from a received signal, providing the CLTD weighting vector to a transmitter, and using the CLTD vector to suppress interference in the received signal, and at a transmitter, transmitting a signal, receiving the CLTD weighting vector from the receiver, and applying the CLTD weighting vector to all subsequent transmissions.
摘要翻译： 使用闭环发射分集（CLTD）的通信系统中提供抗干扰的系统和方法。 优选实施例包括：在接收机处，从接收信号计算CLTD加权向量，向发射机提供CLTD加权向量，并且使用CLTD向量来抑制接收信号中的干扰，并且在发射机处发射信号， 从接收机接收CLTD加权向量，并将CLTD加权向量应用于所有随后的传输。
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公开(公告)号：US20090310782A1
公开(公告)日：2009-12-17
申请号：US12140789
申请日：2008-06-17
IPC分类号： H04L9/00
CPC分类号： H04W56/001 , H04B7/2681 , H04J11/0069 , H04J2011/0096 , H04L9/12 , H04L2209/80 , H04W36/0016 , H04W56/0015
摘要： Embodiments of the present disclosure provide a transmitter, a receiver and methods of operating a transmitter and a receiver. In one embodiment, the transmitter includes a synchronization unit configured to provide a primary synchronization signal and a secondary synchronization signal having first and second segments. The transmitter also includes a secondary scrambling unit configured to provide a scrambled secondary synchronization signal, wherein scrambling agents for the first and second segments are derived from a primary synchronization sequence of the primary synchronization signal. The secondary scrambling unit is further configured to provide an additional scrambling of one of the first and second segments, wherein a second scrambling agent is derived from the remaining segment of a secondary synchronization sequence of the secondary synchronization signal. The transmitter further includes a transmit unit configured to transmit the primary synchronization signal and the scrambled secondary synchronization signal.
摘要翻译： 本公开的实施例提供发射机，接收机和操作发射机和接收机的方法。 在一个实施例中，发射机包括配置成提供主同步信号和具有第一和第二段的辅同步信号的同步单元。 发射机还包括辅助加扰单元，其被配置为提供加扰的次同步信号，其中第一和第二段的加扰代码从主同步信号的主同步序列导出。 次加扰单元还被配置为提供第一和第二段中的一个的附加加扰，其中从副同步信号的辅同步序列的剩余段导出第二加扰代码。 发射机还包括被配置为发送主同步信号和加扰的次同步信号的发射单元。
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公开(公告)号：US20070248068A1
公开(公告)日：2007-10-25
申请号：US11737554
申请日：2007-04-19
IPC分类号： H04Q7/24
CPC分类号： H04W56/0005 , H04J11/0069
摘要： The present invention provides a method of operating a base station transmitter. The method includes providing a cellular downlink synchronization signal having primary and secondary portions, wherein the primary portion employs a corresponding one of a plurality of different primary signals allocated to adjoining transmission cells. The method also includes further providing cell-specific information in the secondary portion and transmitting the cellular downlink synchronization signal. In one embodiment, the primary portion explicitly indicates a partial cell identification information and the remaining cell identification information is carried in the secondary portion. In another embodiment, the plurality of different primary signals are simply used to avoid the channel mismatch effect. The present invention also provides a method of operating user equipment. The method includes receiving a cellular downlink synchronization signal having primary and secondary portions wherein the timing acquisition is performed in conjunction with the primary synchronization sequence index detection via the primary portion. In addition, the secondary portion provides cell-specific parameters and identifying and extracting the secondary portion.
摘要翻译： 本发明提供一种操作基站发射机的方法。 该方法包括提供具有主要和次要部分的蜂窝下行链路同步信号，其中主要部分采用分配给相邻传输小区的多个不同主要信号中的相应一个信号。 该方法还包括在次级部分中进一步提供小区特定信息并发送蜂窝下行同步信号。 在一个实施例中，主要部分明确地指示部分小区标识信息，并且剩余小区标识信息在次要部分中携带。 在另一个实施例中，简单地使用多个不同的主信号来避免信道失配效应。 本发明还提供了一种操作用户设备的方法。 该方法包括接收具有主要和次要部分的蜂窝下行链路同步信号，其中定时获取结合经由主要部分的主同步序列索引检测来执行。 此外，次级部分提供细胞特异性参数并识别和提取次级部分。
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公开(公告)号：US20070217540A1
公开(公告)日：2007-09-20
申请号：US11688756
申请日：2007-03-20
IPC分类号： H04L1/02
CPC分类号： H04L25/03343 , H04B7/0417 , H04B7/063 , H04B7/0632 , H04B7/0639 , H04L1/0003 , H04L1/0009 , H04L1/0025 , H04L1/0026 , H04L1/0631 , H04L5/0023 , H04L5/0053 , H04L5/0057 , H04L25/0204 , H04L27/2626 , H04L27/2647 , H04L2025/03802
摘要： The present invention provides a receiver. In one embodiment, the receiver includes a receive portion employing transmission signals from a transmitter having multiple antennas and capable of providing channel estimates. The receiver also includes a feedback generator portion configured to provide to the transmitter a pre-coder selection for data transmission that is based on the channel estimates, wherein the pre-coder selection corresponds to a grouping of frequency-domain resource blocks. The present invention also provides a transmitter having multiple antennas. In one embodiment, the transmitter includes a transmit portion coupled to the multiple antennas and capable of applying pre-coding to a data transmission for a receiver. The transmitter also includes a feedback decoding portion configured to decode a pre-coder selection for the data transmission that is fed back from the receiver, wherein the pre-coder selection corresponds to a grouping of frequency-domain resource blocks.
摘要翻译： 本发明提供一种接收机。 在一个实施例中，接收机包括采用来自具有多个天线的发射机的传输信号并且能够提供信道估计的接收部分。 接收机还包括反馈发生器部分，其被配置为向发射机提供基于信道估计的数据传输的预编码器选择，其中预编码器选择对应于频域资源块的分组。 本发明还提供一种具有多个天线的发射机。 在一个实施例中，发射机包括耦合到多个天线的发射部分，并且能够将预编码应用于接收机的数据传输。 发射机还包括反馈解码部分，其被配置为解码从接收机反馈的数据传输的预编码器选择，其中预编码器选择对应于频域资源块的分组。
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