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    • 3. 发明申请
    • QUANTIZATION OF CHANNEL STATE INFORMATION IN MULTIPLE ANTENNA SYSTEMS
    • 多天线系统中信道状态信息的量化
    • US20120114024A1
    • 2012-05-10
    • US13289957
    • 2011-11-04
    • Bartosz MielczarekWitold A. Krzymien
    • Bartosz MielczarekWitold A. Krzymien
    • H04B1/38
    • H04B7/0452H04B7/0434H04B7/0456H04B7/0478H04B7/0617H04B7/0632H04B7/0658H04B7/066H04L1/0029H04L1/003H04L1/0687H04L1/0693H04L25/0206
    • 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.
    • 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。
    • 4. 发明授权
    • Quantization of channel state information in multiple antenna systems
    • 多天线系统中信道状态信息的量化
    • US08116391B2
    • 2012-02-14
    • US11754965
    • 2007-05-29
    • Bartosz MielczarekWitold A. Krzymien
    • Bartosz MielczarekWitold A. Krzymien
    • H04K1/10
    • H04B7/0452H04B7/0434H04B7/0456H04B7/0478H04B7/0617H04B7/0632H04B7/0658H04B7/066H04L1/0029H04L1/003H04L1/0687H04L1/0693H04L25/0206
    • 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.
    • 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。
    • 9. 发明授权
    • Quantization of channel state information in multiple antenna systems
    • 多天线系统中信道状态信息的量化
    • US08971467B2
    • 2015-03-03
    • US13289957
    • 2011-11-04
    • Bartosz MielczarekWitold A. Krzymien
    • Bartosz MielczarekWitold A. Krzymien
    • H04B7/10H04B7/06H04B7/04H04L1/06H04L1/00H04L25/02
    • H04B7/0452H04B7/0434H04B7/0456H04B7/0478H04B7/0617H04B7/0632H04B7/0658H04B7/066H04L1/0029H04L1/003H04L1/0687H04L1/0693H04L25/0206
    • 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.
    • 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。