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公开(公告)号：US07821980B2
公开(公告)日：2010-10-26
申请号：US11498272
申请日：2006-08-03
CPC分类号： H04L1/0045 , H04B7/155 , H04B7/2606 , H04L2001/0097
摘要： A method including transmitting a binary vector from a source node to a relay node and receiving a signal vector at the relay node. The method also includes compressing the signal at the relay node by multiplying the signal with a matrix using probabilities and converting output probabilities from the multiplying into retransmission signal amplitudes, the signal amplitude depending not only on a probability of a bit but on a transmission power constraint at the relay node. The method also includes transmitting, by the relay node, estimates of information from the source node to a destination node.
摘要翻译： 一种方法，包括从源节点向中继节点发送二进制向量并在中继节点处接收信号向量。 该方法还包括通过使用概率将信号与矩阵相乘来压缩中继节点处的信号，并将输出概率从乘法转换为重发信号幅度，信号幅度不仅取决于比特的概率，而且取决于发射功率约束 在中继节点。 该方法还包括由中继节点发送从源节点到目的地节点的信息估计。
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公开(公告)号：US20080052608A1
公开(公告)日：2008-02-28
申请号：US11498272
申请日：2006-08-03
IPC分类号： G06F11/08
CPC分类号： H04L1/0045 , H04B7/155 , H04B7/2606 , H04L2001/0097
摘要： A method including transmitting a binary vector from a source node to a relay node and receiving a signal vector at the relay node. The method also includes compressing the signal at the relay node by multiplying the signal with a matrix using probabilities and converting output probabilities from the multiplying into retransmission signal amplitudes, the signal amplitude depending not only on a probability of a bit but on a transmission power constraint at the relay node. The method also includes transmitting, by the relay node, estimates of information from the source node to a destination node.
摘要翻译： 一种方法，包括从源节点向中继节点发送二进制向量并在中继节点处接收信号向量。 该方法还包括通过使用概率将信号与矩阵相乘来压缩中继节点处的信号，并将输出概率从乘法转换为重发信号幅度，信号幅度不仅取决于比特的概率，而且取决于发射功率约束 在中继节点。 该方法还包括由中继节点发送从源节点到目的地节点的信息估计。
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3.发明申请Methods, computer program products and apparatus providing improved quantization 有权方法，提供改进量化的计算机程序产品和装置公开(公告)号：US20090016415A1
公开(公告)日：2009-01-15
申请号：US11827717
申请日：2007-07-12
CPC分类号： H03M7/30
摘要： Thus, the exemplary embodiments of the invention describe methods, computer program products and apparatus that provide improved quantization, as may be useful within the context of a communication system (e.g., a wireless communication system) that has a relay node. In one non-limiting, exemplary embodiment, a method includes: receiving a transmission having source data from an information source; determining an estimate of the source data using a quantization technique based on maximizing data throughput; and transmitting a message including the determined estimate towards an information destination.
摘要翻译： 因此，本发明的示例性实施例描述了在具有中继节点的通信系统（例如，无线通信系统）的上下文中可能有用的提供改进的量化的方法，计算机程序产品和装置。 在一个非限制性的示例性实施例中，一种方法包括：从信息源接收具有源数据的传输; 使用基于最大化数据吞吐量的量化技术来确定源数据的估计; 以及向所述信息目的地发送包括所确定的估计的消息。
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4.发明授权Methods, computer program products and apparatus providing improved quantization 有权方法，提供改进量化的计算机程序产品和装置公开(公告)号：US08243756B2
公开(公告)日：2012-08-14
申请号：US11827717
申请日：2007-07-12
CPC分类号： H03M7/30
摘要： Thus, the exemplary embodiments of the invention describe methods, computer program products and apparatus that provide improved quantization, as may be useful within the context of a communication system (e.g., a wireless communication system) that has a relay node. In one non-limiting, exemplary embodiment, a method includes: receiving a transmission having source data from an information source; determining an estimate of the source data using a quantization technique based on maximizing data throughput; and transmitting a message including the determined estimate towards an information destination.
摘要翻译： 因此，本发明的示例性实施例描述了在具有中继节点的通信系统（例如，无线通信系统）的上下文中可能有用的提供改进的量化的方法，计算机程序产品和装置。 在一个非限制性的示例性实施例中，一种方法包括：从信息源接收具有源数据的传输; 使用基于最大化数据吞吐量的量化技术来确定源数据的估计; 以及向所述信息目的地发送包括所确定的估计的消息。
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5.发明授权Generalized m-rank beamformers for MIMO systems using successive quantization 有权使用连续量化的MIMO系统的广义m级波束形成器公开(公告)号：US07336727B2
公开(公告)日：2008-02-26
申请号：US10923056
申请日：2004-08-19
IPC分类号： H04L27/00
CPC分类号： H04B7/0417 , H04B7/043 , H04B7/0443 , H04B7/0634 , H04B7/0639 , H04B7/0663
摘要： The telecommunications system described herein implements a multi-rank beamformer for use in wireless systems equipped with multiple transmit and multiple receive antennas. The multi-rank beamformer uses finite-rate feedback of channel conditions to achieves close to theoretical performance indicated by the water-filling algorithm, while avoiding the computational complexity associated with space time codes. In addition, the multi-rank beamforming system described herein improves on the performance of unit rank beamforming methods by maintaining the gains over space time codes over a broader range of transmission rates.
摘要翻译： 本文描述的电信系统实现用于配备有多个发射和多个接收天线的无线系统中的多等级波束形成器。 多级波束形成器使用信道条件的有限速率反馈来实现接近灌水算法所指示的理论性能，同时避免与时空码相关的计算复杂度。 另外，本文描述的多级波束成形系统通过在更宽的传输速率范围内保持空间时间码的增益来改善单位秩波束成形方法的性能。
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6.发明授权公开(公告)号：US07330701B2
公开(公告)日：2008-02-12
申请号：US10533248
申请日：2003-10-29
CPC分类号： H04B7/0639 , H01Q21/00 , H04B7/0443 , H04B7/0617 , H04B7/0669 , H04W52/42
摘要： Beamforming systems having a few bits of channel state information fed back to the transmitter benefit from low complexity decoding structures and performances gains compared with systems that do not have channel state feedback. Both unit rank and higher rank systems are implemented. Substantial design effort may be avoided by following a method of using functions formulated for space-time systems with the change that the channel coherence time is equated to the number of transmit antennas and the number of antennas in the space-time formulation is fixed at one.
摘要翻译： 具有反馈到发射机的几比特信道状态信息的波束成形系统与没有信道状态反馈的系统相比，受益于低复杂性解码结构和性能增益。 实现了单位级和高级制。 通过遵循使用为空时系统制定的功能的方法可以避免大量的设计努力，其中信道相干时间等于发射天线的数量，并且时空公式中的天线数量固定在一个 。
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7.发明申请Method and apparatus to provide power control with finite rate feedback for cooperative relay networks 审中-公开为协作中继网络提供有限速率反馈功率控制的方法和装置公开(公告)号：US20050255808A1
公开(公告)日：2005-11-17
申请号：US11094093
申请日：2005-03-29
CPC分类号： H04W52/46 , H04B7/15592 , H04W24/00 , H04W52/42 , H04W88/04
摘要： A method for reducing outages in a cooperative network comprising measuring a channel gain for each of a plurality of received signals one of the received signals comprising a source signal, executing an algorithm utilizing the channel gain of the source signal and at least one other of the plurality of channel gains to determine a source transmit power value, and transmitting the source transmit power value to the source.
摘要翻译： 一种用于减少合作网络中的停机的方法，包括：测量多个接收信号中的每一个的信道增益，所述接收信号中的一个包括源信号，使用所述源信号的信道增益和所述源信号的至少另一个执行算法 多个信道增益以确定源发射功率值，以及将源发射功率值发送到源。
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8.发明申请Generalized m-rank beamformers for mimo systems using successive quantization 有权使用连续量化的mimo系统的广义m阶波束形成器公开(公告)号：US20060039493A1
公开(公告)日：2006-02-23
申请号：US10923056
申请日：2004-08-19
CPC分类号： H04B7/0417 , H04B7/043 , H04B7/0443 , H04B7/0634 , H04B7/0639 , H04B7/0663
摘要： The telecommunications system described herein implements a multi-rank beamformer for use in wireless systems equipped with multiple transmit and multiple receive antennas. The multi-rank beamformer uses finite-rate feedback of channel conditions to achieves close to theoretical performance indicated by the water-filling algorithm, while avoiding the computational complexity associated with space time codes. In addition, the multi-rank beamforming system described herein improves on the performance of unit rank beamforming methods by maintaining the gains over space time codes over a broader range of transmission rates.
摘要翻译： 本文描述的电信系统实现用于配备有多个发射和多个接收天线的无线系统中的多等级波束形成器。 多级波束形成器使用信道条件的有限速率反馈来实现接近灌水算法所指示的理论性能，同时避免与时空码相关的计算复杂度。 另外，本文描述的多级波束成形系统通过在更宽的传输速率范围内保持空间时间码的增益来改善单位秩波束成形方法的性能。
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公开(公告)号：US07889804B2
公开(公告)日：2011-02-15
申请号：US10671346
申请日：2003-09-24
IPC分类号： H04B7/02
CPC分类号： H04L25/0202 , H04L1/0612 , H04L27/3427
摘要： A signal constellation for a multiple input/multiple output (MIMO) communication system when channel knowledge at the receiver is imperfect includes at least two (n−1)-dimensional sub-constellations of points that together form an n-dimensional constellation, the number n representing real dimensions and n=2M where M is the number of transmit antennas. The n-dimensional spherical constellation may define a single sphere or a plurality of concentric subset spheres, and points between subsets are separated by a Kullback-Leibler distance rather than a Euclidian distance. Each sphere has sub-constellations that preferably are arranged in symmetric pairs that define equal numbers of points that lie in parallel planes, to allow recursive construction that minimizes computational complexity. An appropriate constellation may be chosen by ceasing a search once the optimum minimum distance stops increasing as a number of the concentric levels increases.
摘要翻译： 当接收机的信道知识不完美时，用于多输入/多输出（MIMO）通信系统的信号星座包括一起形成n维星座的点的至少两（n-1）维子星座， n表示实际尺寸，n = 2M，其中M是发射天线的数量。 n维球形星座可以定义单个球体或多个同心子集球体，并且子集之间的点由Kullback-Leibler距离而不是欧几里得距离分开。 每个球体具有优选以对称对布置的子星座，其限定位于平行平面中的相等数量的点，以允许最小化计算复杂度的递归构造。 一旦适当的星座可以通过停止搜索，一旦最佳最小距离随着同心级数的增加而停止增加。
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10.发明申请公开(公告)号：US20060111148A1
公开(公告)日：2006-05-25
申请号：US10533248
申请日：2003-10-29
IPC分类号： H04B7/00
CPC分类号： H04B7/0639 , H01Q21/00 , H04B7/0443 , H04B7/0617 , H04B7/0669 , H04W52/42
摘要： Beamforming systems having a few bits of channel state information fed back to the transmitter benefit from low complexity decoding structures and performances gains compared with systems that do not have channel state feedback. Both unit rank and higher rank systems are implemented. Substantial design effort may be avoided by following a method of using functions formulated for space-time systems with the change that the channel coherence time is equated to the number of transmit antennas and the number of antennas in the space-time formulation is fixed at one.
摘要翻译： 具有反馈到发射机的几比特信道状态信息的波束成形系统与没有信道状态反馈的系统相比，受益于低复杂性解码结构和性能增益。 实现了单位级和高级制。 通过遵循使用为空时系统制定的功能的方法可以避免大量的设计努力，其中信道相干时间等于发射天线的数量，并且时空公式中的天线数量固定在一个 。
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