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公开(公告)号：US08654705B2
公开(公告)日：2014-02-18
申请号：US12754018
申请日：2010-04-05
IPC分类号： H04W52/04
CPC分类号： H04B7/0613 , H04B7/0617 , H04B7/0619 , H04B7/0634 , H04B7/0691 , H04B7/0695 , H04W52/42
摘要： Techniques for rank adaptation and multiple-stream reverse link communications in a wireless access network are disclosed. A remote unit transmits one or more reverse link data streams using separate identifiers to a base station. The number of reverse link data streams may be determined according to feedback from the base station or it may be determined by testing one or more multiple-antenna transmit hypotheses. The base station may estimate channel conditions using information obtained from the one or more reverse link data streams and may determine a spatial rank of the communication channel. The remote unit may perform separate error control and power control processes for each reverse link data stream in cooperation with the base station.
摘要翻译： 公开了一种用于无线接入网络中的秩适配和多流反向链路通信的技术。 远程单元使用单独的标识符向基站发送一个或多个反向链路数据流。 反向链路数据流的数量可以根据来自基站的反馈来确定，或者可以通过测试一个或多个多天线发射假设来确定。 基站可以使用从一个或多个反向链路数据流获得的信息估计信道条件，并且可以确定通信信道的空间等级。 远程单元可以与基站协作地为每个反向链路数据流执行单独的错误控制和功率控制过程。
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公开(公告)号：US08654715B2
公开(公告)日：2014-02-18
申请号：US12582514
申请日：2009-10-20
IPC分类号： H04W4/00
CPC分类号： H04B7/0689 , H04B7/061 , H04B7/0617 , H04W52/146 , H04W52/247 , H04W52/248
摘要： A method for use by a remote unit in an Evolution Data Optimized (EVDO) network includes sending transmissions to a base station, each of the transmissions corresponding to a respective one of multiple hypotheses of multiple antenna usage. The method also includes receiving feedback from the base station in response to the transmissions, the feedback being uninformed of multiple antenna usage and using the feedback to select at least one of the hypotheses. The method further includes transmitting data using a multiple-antenna scheme associated with the selected hypotheses.
摘要翻译： 由演进数据优化（EVDO）网络中的远程单元使用的方法包括向基站发送传输，每个传输对应于多个天线使用的多个假设中的相应一个。 所述方法还包括响应于所述传输从所述基站接收反馈，所述反馈不知道多个天线使用，并且使用所述反馈来选择所述假设中的至少一个。 该方法还包括使用与所选择的假设相关联的多天线方案来发送数据。
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3.发明申请SYSTEMS AND METHODS EMPLOYING MULTIPLE INPUT MULTIPLE OUTPUT (MIMO) TECHNIQUES 有权采用多输入多输出（MIMO）技术的系统和方法公开(公告)号：US20100067480A1
公开(公告)日：2010-03-18
申请号：US12545693
申请日：2009-08-21
申请人： Jibing Wang , Rashid Ahmed Akbar Attar , Tamer Kadous , Jing Sun
发明人： Jibing Wang , Rashid Ahmed Akbar Attar , Tamer Kadous , Jing Sun
CPC分类号： H04B7/0413 , H04L5/0007 , H04L5/0048
摘要： A system has multiple antennas, a Time Division Multiplexing (TDM) module creating TDM slots, and demultiplexing circuitry inserting within the TDM slots Orthogonal Frequency Division Multiplexing (OFDM) symbols and associating the TDM slots with data sub-streams. The system also includes precoding circuitry associating the data sub-streams with multiple tones. Each of the respective tones corresponds to a respective one of the antennas. The antennas transmit the data sub-streams using the multiple tones.
摘要翻译： 系统具有多个天线，创建TDM时隙的时分复用（TDM）模块，以及在TDM时隙正交频分复用（OFDM）符号内插入多路复用电路，并将TDM时隙与数据子流相关联。 该系统还包括将数据子流与多个音调相关联的预编码电路。 各个音调中的每一个对应于相应的一个天线。 天线使用多个音调发送数据子流。
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4.发明授权Systems and methods employing multiple input multiple output (MIMO) techniques 有权采用多输入多输出（MIMO）技术的系统和方法公开(公告)号：US08331310B2
公开(公告)日：2012-12-11
申请号：US12545693
申请日：2009-08-21
申请人： Jibing Wang , Rashid Ahmed Akbar Attar , Tamer Kadous , Jing Sun
发明人： Jibing Wang , Rashid Ahmed Akbar Attar , Tamer Kadous , Jing Sun
IPC分类号： H04W4/00
CPC分类号： H04B7/0413 , H04L5/0007 , H04L5/0048
摘要： A system has multiple antennas, a Time Division Multiplexing (TDM) module creating TDM slots, and demultiplexing circuitry inserting within the TDM slots Orthogonal Frequency Division Multiplexing (OFDM) symbols and associating the TDM slots with data sub-streams. The system also includes precoding circuitry associating the data sub-streams with multiple tones. Each of the respective tones corresponds to a respective one of the antennas. The antennas transmit the data sub-streams using the multiple tones.
摘要翻译： 系统具有多个天线，创建TDM时隙的时分复用（TDM）模块，以及在TDM时隙正交频分复用（OFDM）符号内插入多路复用电路，并将TDM时隙与数据子流相关联。 该系统还包括将数据子流与多个音调相关联的预编码电路。 各个音调中的每一个对应于相应的一个天线。 天线使用多个音调发送数据子流。
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公开(公告)号：US20100291917A1
公开(公告)日：2010-11-18
申请号：US12754018
申请日：2010-04-05
IPC分类号： H04W40/00
CPC分类号： H04B7/0613 , H04B7/0617 , H04B7/0619 , H04B7/0634 , H04B7/0691 , H04B7/0695 , H04W52/42
摘要： Techniques for rank adaptation and multiple-stream reverse link communications in a wireless access network are disclosed. A remote unit transmits one or more reverse link data streams using separate identifiers to a base station. The number of reverse link data streams may be determined according to feedback from the base station or it may be determined by testing one or more multiple-antenna transmit hypotheses. The base station may estimate channel conditions using information obtained from the one or more reverse link data streams and may determine a spatial rank of the communication channel. The remote unit may perform separate error control and power control processes for each reverse link data stream in cooperation with the base station.
摘要翻译： 公开了一种用于无线接入网络中的秩适配和多流反向链路通信的技术。 远程单元使用单独的标识符向基站发送一个或多个反向链路数据流。 反向链路数据流的数量可以根据来自基站的反馈来确定，或者可以通过测试一个或多个多天线发射假设来确定。 基站可以使用从一个或多个反向链路数据流获得的信息估计信道条件，并且可以确定通信信道的空间等级。 远程单元可以与基站协作地为每个反向链路数据流执行单独的错误控制和功率控制过程。
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公开(公告)号：US20100103877A1
公开(公告)日：2010-04-29
申请号：US12582514
申请日：2009-10-20
CPC分类号： H04B7/0689 , H04B7/061 , H04B7/0617 , H04W52/146 , H04W52/247 , H04W52/248
摘要： A method for use by a remote unit in an Evolution Data Optimized (EVDO) network includes sending transmissions to a base station, each of the transmissions corresponding to a respective one of multiple hypotheses of multiple antenna usage. The method also includes receiving feedback from the base station in response to the transmissions, the feedback being uninformed of multiple antenna usage and using the feedback to select at least one of the hypotheses. The method further includes transmitting data using a multiple-antenna scheme associated with the selected hypotheses.
摘要翻译： 由演进数据优化（EVDO）网络中的远程单元使用的方法包括向基站发送传输，每个传输对应于多个天线使用的多个假设中的相应一个。 所述方法还包括响应于所述传输从所述基站接收反馈，所述反馈不知道多个天线使用，并且使用所述反馈来选择所述假设中的至少一个。 该方法还包括使用与所选择的假设相关联的多天线方案来发送数据。
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公开(公告)号：US09172453B2
公开(公告)日：2015-10-27
申请号：US11261064
申请日：2005-10-27
申请人： Jibing Wang , Tamer Kadous , Dhananjay Ashok Gore
发明人： Jibing Wang , Tamer Kadous , Dhananjay Ashok Gore
CPC分类号： H04B7/0639 , H04B7/063
摘要： Accordingly, a method and apparatus are provided wherein a receiver system selects a pre-coding matrix, comprising eigen-beamforming weights, to use and provides rank value and matrix index associated with the selected matrix to the transmitter system. The transmitter system upon receiving the rank value and matrix index, determine if the matrix associated with the matrix index provided by the receiver system can be used. If not, them transmitter system selects another matrix for determining eigen-beamforming weights.
摘要翻译： 因此，提供了一种方法和装置，其中接收机系统选择包括特征波束形成权重的预编码矩阵，以使用并向发射机系统提供与所选矩阵相关联的秩值和矩阵索引。 发射机系统在接收到秩值和矩阵索引后，确定是否可以使用与接收机系统提供的矩阵索引关联的矩阵。 如果不是，则它们发射机系统选择用于确定特征波束形成权重的另一矩阵。
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公开(公告)号：US08385433B2
公开(公告)日：2013-02-26
申请号：US11552941
申请日：2006-10-25
IPC分类号： H04L27/00
CPC分类号： H04L25/03343 , H04B7/0417 , H04B7/0639 , H04L1/0019 , H04L1/0026 , H04L1/0035 , H04L1/0073 , H04L1/0631 , H04L5/0023 , H04L25/0204 , H04L25/021 , H04L25/0248 , H04L2025/03414 , H04L2025/03426 , H04L2025/03802 , H04L2025/03808 , H04W52/42
摘要： Systems and methodologies are described that facilitate estimating transmit covariance from evaluation of a channel (e.g., forward link channel, reverse link channel, . . . ) to be utilized in linear precoding for multiple-input multiple-output (MIMO) wireless communication systems. Predefined codebooks that include any number of precoding matrices may be modified based upon transmit covariance estimations to yield improved precoding performance. Further, channel related feedback may be generated and analyzed by utilizing the modified codebooks.
摘要翻译： 描述了有助于从用于多输入多输出（MIMO）无线通信系统的线性预编码中使用的信道（例如，前向链路信道，反向链路信道等）的评估来估计发射协方差的系统和方法。 可以基于发射协方差估计来修改包括任何数量的预编码矩阵的预定码本，以产生改进的预编码性能。 此外，可以通过利用修改的码本生成和分析与频道相关的反馈。
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公开(公告)号：US20070165738A1
公开(公告)日：2007-07-19
申请号：US11552948
申请日：2006-10-25
IPC分类号： H04L1/02
CPC分类号： H04L1/0687
摘要： Systems and methodologies are described that facilitates computing a precoding index which correlates to a precoding matrix within a codebook. According to various aspects, systems and/or methods are described that facilitate computing an effective signal-to-noise ratio (SNR). Such systems and/or methods may further facilitate selecting a precoding matrix and a corresponding precoding index. Such systems and/or methods may still further facilitate employing the precoding matrix in a MIMO wireless communication system.
摘要翻译： 描述了有助于计算与码本内的预编码矩阵相关的预编码索引的系统和方法。 根据各个方面，描述了有助于计算有效信噪比（SNR）的系统和/或方法。 这样的系统和/或方法可以进一步促进选择预编码矩阵和相应的预编码索引。 这样的系统和/或方法还可以进一步促进在MIMO无线通信系统中采用预编码矩阵。
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公开(公告)号：US20070097856A1
公开(公告)日：2007-05-03
申请号：US11553462
申请日：2006-10-26
申请人： Jibing Wang , Tamer Kadous
发明人： Jibing Wang , Tamer Kadous
IPC分类号： H04J11/00
CPC分类号： H04B7/0447 , H04B7/0417 , H04B7/0482 , H04B7/0626 , H04B7/0634 , H04B7/0639 , H04L1/06 , H04L1/0618 , H04L5/0023 , H04L5/023 , H04L25/0204 , H04L25/0248 , H04L25/03343 , H04L2025/03414 , H04L2025/03426 , H04L2025/03802
摘要： Systems and methodologies are described that facilitate constructing unitary matrices that may be utilized in linear precoding for multiple-input multiple-output (MIMO) wireless communication systems. Each unitary matrix may be generated by combining (e.g., multiplying) a diagonal matrix with a Discrete Fourier Transform (DFT) matrix. The unitary matrices may be utilized to provide feedback related to a channel and/or control transmission over a channel based upon obtained feedback.
摘要翻译： 描述了有助于构建可用于多输入多输出（MIMO）无线通信系统的线性预编码的单位矩阵的系统和方法。 可以通过将对角矩阵与离散傅里叶变换（DFT）矩阵组合（例如，乘法）来生成每个单位矩阵。 基于获得的反馈，可以利用酉矩阵来提供与信道和/或控制传输相关的反馈。
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