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1.发明申请公开(公告)号：US20090265601A1
公开(公告)日：2009-10-22
申请号：US12107047
申请日：2008-04-21
CPC分类号： H04B7/0417 , H04B7/0413 , H04B7/0456 , H04B7/0619 , H04B7/063 , H04B7/0652 , H04B7/0656 , H04L1/0026 , H04L1/0029 , H04L1/0042 , H04L25/0204 , H04L25/0248 , H04L25/03203 , H04L2025/03426 , H04L2025/03802
摘要： Methods are disclosed for improving communications on feedback transmission channels, in which there is a possibility of bit errors. The basic solutions to counter those errors are: proper design of the CSI vector quantizer indexing (i.e., the bit representation of centroid indices) in order to minimize impact of index errors, use of error detection techniques to expurgate the erroneous indices and use of other methods to recover correct indices.
摘要翻译： 公开了用于改善反馈传输通道上的通信的方法，其中存在位错误的可能性。 针对这些错误的基本解决方案是：正确设计CSI向量量化器索引（即，质心指数的位表示），以最小化索引错误的影响，使用错误检测技术来排除错误的索引和使用其他 恢复正确索引的方法。
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2.发明授权Mitigation of transmission errors of quantized channel state information feedback in multi antenna systems 有权减少多天线系统中量化信道状态信息反馈的传输误差公开(公告)号：US08719673B2
公开(公告)日：2014-05-06
申请号：US13541631
申请日：2012-07-03
CPC分类号： H04B7/0417 , H04B7/0413 , H04B7/0456 , H04B7/0619 , H04B7/063 , H04B7/0652 , H04B7/0656 , H04L1/0026 , H04L1/0029 , H04L1/0042 , H04L25/0204 , H04L25/0248 , H04L25/03203 , H04L2025/03426 , H04L2025/03802
摘要： Methods are disclosed for improving communications on feedback transmission channels, in which there is a possibility of bit errors. The basic solutions to counter those errors are: proper design of the CSI vector quantizer indexing (i.e., the bit representation of centroid indices) in order to minimize impact of index errors, use of error detection techniques to expurgate the erroneous indices and use of other methods to recover correct indices.
摘要翻译： 公开了用于改善反馈传输通道上的通信的方法，其中存在位错误的可能性。 针对这些错误的基本解决方案是：正确设计CSI向量量化器索引（即，质心指数的位表示），以最小化索引错误的影响，使用错误检测技术来排除错误的索引和使用其他 恢复正确索引的方法。
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公开(公告)号：US20120114024A1
公开(公告)日：2012-05-10
申请号：US13289957
申请日：2011-11-04
IPC分类号： H04B1/38
CPC分类号： H04B7/0452 , H04B7/0434 , H04B7/0456 , H04B7/0478 , H04B7/0617 , H04B7/0632 , H04B7/0658 , H04B7/066 , H04L1/0029 , H04L1/003 , H04L1/0687 , H04L1/0693 , H04L25/0206
摘要： A method of transmission over multiple wireless channels in a multiple antenna system includes storing channel modulation matrices at a transmitter; receiving quantized channel state information at the transmitter from plural receivers; selecting a transmission modulation matrix using the quantized channel state information from the stored channel modulation matrices; and transmitting over the multiple channels to the plural receivers using the selected transmission modulation matrix. In another embodiment, the method includes storing, at one or more receivers, indexes of modulation matrices generated by a capacity enhancing algorithm; upon a selected one of the one or more receivers receiving a transmission from the transmitter, the selected receiver selecting a modulation matrix from the stored modulation matrices that optimizes transmission between the transmitter and the selected receiver; the selected receiver sending an index representing the selected modulation matrix; and receiving the index at the transmitter from the selected receiver.
摘要翻译： 在多天线系统中通过多个无线信道进行传输的方法包括在发射机处存储信道调制矩阵; 在多个接收机处在发射机处接收量化信道状态信息; 使用来自所存储的信道调制矩阵的量化信道状态信息来选择传输调制矩阵; 并且使用所选择的发送调制矩阵在多个信道上发送到多个接收机。 在另一个实施例中，该方法包括在一个或多个接收机处存储由容量增强算法产生的调制矩阵的索引; 在所述一个或多个接收机中从所述发射机接收到传输的所选择的一个接收机中，所选择的接收机从所存储的调制矩阵中选择调制矩阵，所述调制矩阵优化所述发射机和所选接收机之间的传输 所选择的接收机发送表示所选调制矩阵的索引; 以及从所选接收机接收发射机处的索引。
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4.发明授权公开(公告)号：US08665979B2
公开(公告)日：2014-03-04
申请号：US13190354
申请日：2011-07-25
CPC分类号： H04W24/10 , H03M13/47 , H03M13/612 , H04B7/0417 , H04B7/0626 , H04B7/0639 , H04B7/0641 , H04B7/0658 , H04L1/20
摘要： A CSI vector quantizer (VQ) system is provided for time-correlated channels. The VQ system operates a receiver forwarding quantized channel state information in the form of indices and a transmitter predicting channel state change. The VQ system is aimed at feedback channels, in which bit errors, erasures and delays can occur. The VQ system uses transmitter-side channel prediction algorithms that work with the quantized CSI information and allow the system to recover from feedback channel transmission errors, erasures and delays. Moreover, the techniques can be used to lower the required feedback rate, while keeping the system's throughput at the required level.
摘要翻译： 为时间相关信道提供CSI矢量量化器（VQ）系统。 VQ系统操作接收机以索引的形式转发量化的信道状态信息和预测信道状态变化的发射机。 VQ系统旨在反馈信道，其中可能发生位错误，擦除和延迟。 VQ系统使用发射机侧信道预测算法与量化的CSI信息一起工作，并允许系统从反馈信道传输错误，擦除和延迟中恢复。 此外，这些技术可以用于降低所需的反馈速率，同时将系统的吞吐量保持在所需的水平。
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公开(公告)号：US08116391B2
公开(公告)日：2012-02-14
申请号：US11754965
申请日：2007-05-29
IPC分类号： H04K1/10
CPC分类号： H04B7/0452 , H04B7/0434 , H04B7/0456 , H04B7/0478 , H04B7/0617 , H04B7/0632 , H04B7/0658 , H04B7/066 , H04L1/0029 , H04L1/003 , H04L1/0687 , H04L1/0693 , H04L25/0206
摘要： A new vector quantization algorithm for reducing bit rate used for channel state information feedback in a variety of multiple antenna systems on flat and frequency selective channels. The receiver chooses an instantaneous capacity maximizing entry from a small finite set of predefined covariance matrices. The codebook of covariance matrices is constructed based on separate optimization of the channel eigenmodes and power division between them. If, for the given channel realization, one of the predefined covariance matrices provides higher capacity than equal power distribution the indexes of the two codebooks are fed to the transmitter, otherwise, the transmitter uses the open-loop approach. A vector quantization algorithm in which receiver chooses an instantaneous throughput maximizing modulation matrix from a finite set of predefined matrices (code-words). The codebook of modulation matrices is constructed based on joint optimization of the dominant channel eigenmodes of users and separate quantization of power levels.
摘要翻译： 一种新的矢量量化算法，用于降低在平坦和频率选择性信道上的各种多个天线系统中用于信道状态信息反馈的比特率。 接收机从预定协方差矩阵的小有限集合中选择瞬时容量最大化条目。 协方差矩阵的码本是基于信道本征模的分离优化和它们之间的功率分配构成的。 如果对于给定的信道实现，预定义的协方差矩阵之一提供比等功率分配更高的容量，则将两个码本的索引馈送到发射机，否则，发射机使用开环方法。 一种矢量量化算法，其中接收机从有限的一组预定义矩阵（码字）中选择最大化调制矩阵的瞬时吞吐量。 调制矩阵的码本是基于用户的主要信道本征模式的联合优化和功率电平的单独量化来构建的。
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公开(公告)号：US07747922B2
公开(公告)日：2010-06-29
申请号：US11445608
申请日：2006-06-01
IPC分类号： G08C25/02
CPC分类号： H04L1/1819 , H04L1/0013 , H04L1/0054 , H04L1/0059 , H04L1/0066 , H04L1/0069 , H04L1/165
摘要： A method and an apparatus of constructing hybrid Automatic Repeat reQuest (ARQ) systems using specific properties of the BCJR error correcting algorithm. Since the convergence to an actual codeword is not always guaranteed with the BCJR, the method and apparatus implements a system, in which two different types of Negative AcKnowledgement messages (NAKs) are employed. The first type is the conventional one-bit NAK and the second type specifies retransmission pattern in such a way that the additional parity bits are concentrated on the parts of the code trellis that did not converge to a valid sequence.
摘要翻译： 一种使用BCJR误差校正算法的特定属性构建混合自动重复请求（ARQ）系统的方法和装置。 由于与BCJR不一定保证与实际码字的收敛，因此该方法和装置实现了一种系统，其中采用两种不同类型的否定确认消息（NAK）。 第一种类型是常规的一位NAK，第二种类型指定重传模式，使得附加奇偶校验位集中在不收敛到有效序列的代码网格的部分上。
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7.发明授权Multi-tiered quantization of channel state information in multiple antenna systems 有权多天线系统中信道状态信息的多层次量化公开(公告)号：US09048891B2
公开(公告)日：2015-06-02
申请号：US13083375
申请日：2011-04-08
CPC分类号： H04B7/0417 , H03M13/47 , H03M13/612 , H04B7/0626 , H04B7/0639 , H04B7/0658 , H04B7/0663 , H04L1/20
摘要： A multi-tiered CSI vector quantizer (VQ) is provided for time-correlated channels. The VQ operates by quantizing channel state information by reference to both the current channel state information and a prior channel state quantization. A system is also provided that uses multi-tiered CSI quantizers. Enhanced signaling between the transmitter and receivers is provided in order to facilitate the use of multi-tiered CSI quantizers.
摘要翻译： 为时间相关信道提供多层次CSI矢量量化器（VQ）。 VQ通过参考当前信道状态信息和先前信道状态量化来量化信道状态信息来操作。 还提供了使用多层次CSI量化器的系统。 提供了发射机和接收机之间的增强的信令，以便于使用多层次的CSI量化器。
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公开(公告)号：US08891702B2
公开(公告)日：2014-11-18
申请号：US13289957
申请日：2011-11-04
摘要： A method of transmission over multiple wireless channels in a multiple antenna system includes storing channel modulation matrices at a transmitter; receiving quantized channel state information at the transmitter from plural receivers; selecting a transmission modulation matrix using the quantized channel state information from the stored channel modulation matrices; and transmitting over the multiple channels to the plural receivers using the selected transmission modulation matrix. In another embodiment, the method includes storing, at one or more receivers, indexes of modulation matrices generated by a capacity enhancing algorithm; upon a selected one of the one or more receivers receiving a transmission from the transmitter, the selected receiver selecting a modulation matrix from the stored modulation matrices that optimizes transmission between the transmitter and the selected receiver; the selected receiver sending an index representing the selected modulation matrix; and receiving the index at the transmitter from the selected receiver.
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9.发明申请公开(公告)号：US20120275534A1
公开(公告)日：2012-11-01
申请号：US13541631
申请日：2012-07-03
CPC分类号： H04B7/0417 , H04B7/0413 , H04B7/0456 , H04B7/0619 , H04B7/063 , H04B7/0652 , H04B7/0656 , H04L1/0026 , H04L1/0029 , H04L1/0042 , H04L25/0204 , H04L25/0248 , H04L25/03203 , H04L2025/03426 , H04L2025/03802
摘要： Methods are disclosed for improving communications on feedback transmission channels, in which there is a possibility of bit errors. The basic solutions to counter those errors are: proper design of the CSI vector quantizer indexing (i.e., the bit representation of centroid indices) in order to minimize impact of index errors, use of error detection techniques to expurgate the erroneous indices and use of other methods to recover correct indices.
摘要翻译： 公开了用于改善反馈传输通道上的通信的方法，其中存在位错误的可能性。 针对这些错误的基本解决方案是：正确设计CSI向量量化器索引（即，质心指数的位表示），以最小化索引错误的影响，使用错误检测技术来排除错误的索引和使用其他 恢复正确索引的方法。
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10.发明申请公开(公告)号：US20110280324A1
公开(公告)日：2011-11-17
申请号：US13190354
申请日：2011-07-25
IPC分类号： H04L27/00
CPC分类号： H04W24/10 , H03M13/47 , H03M13/612 , H04B7/0417 , H04B7/0626 , H04B7/0639 , H04B7/0641 , H04B7/0658 , H04L1/20
摘要： A CSI vector quantizer (VQ) system is provided for time-correlated channels. The VQ system operates a receiver forwarding quantized channel state information in the form of indices and a transmitter predicting channel state change. The VQ system is aimed at feedback channels, in which bit errors, erasures and delays can occur. The VQ system uses transmitter-side channel prediction algorithms that work with the quantized CSI information and allow the system to recover from feedback channel transmission errors, erasures and delays. Moreover, the techniques can be used to lower the required feedback rate, while keeping the system's throughput at the required level.
摘要翻译： 为时间相关信道提供CSI矢量量化器（VQ）系统。 VQ系统操作接收机以索引的形式转发量化的信道状态信息和预测信道状态变化的发射机。 VQ系统旨在反馈信道，其中可能发生位错误，擦除和延迟。 VQ系统使用发射机侧信道预测算法与量化的CSI信息一起工作，并允许系统从反馈信道传输错误，擦除和延迟中恢复。 此外，这些技术可以用于降低所需的反馈速率，同时将系统的吞吐量保持在所需的水平。
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