Apparatus for generating precoding matrix codebook for MIMO system and method of the same
    21.
    发明授权
    Apparatus for generating precoding matrix codebook for MIMO system and method of the same 有权
    用于生成用于MIMO系统的预编码矩阵码本的装置及其方法

    公开(公告)号:US08238461B2

    公开(公告)日:2012-08-07

    申请号:US11967556

    申请日:2007-12-31

    IPC分类号: H04B7/02

    摘要: An apparatus for generating a precoding matrix codebook includes a matrix group generator to generate a first group of unitary matrices based on a vector-based codebook for precoding of a multiple input multiple output (MIMO) communication scheme; a matrix group extender to extend the first group of unitary matrices to generate a second group of unitary matrices; and a matrix group selector to select a group of columns corresponding to a communication rank from each of the unitary matrices that are elements of the second group so that the columns are optimized based on a distance between the columns corresponding to the communication rank.

    摘要翻译: 一种用于生成预编码矩阵码本的装置,包括矩阵组生成器,用于基于用于多输入多输出(MIMO)通信方案的预编码的基于矢量的码本生成第一组酉矩阵; 矩阵组扩展器,用于扩展第一组酉矩阵以生成第二组酉矩阵; 以及矩阵组选择器,用于从作为第二组的元素的每个酉矩阵中选择与通信秩对应的一组列,使得根据与通信等级对应的列之间的距离优化列。

    Multi-user data transmission/reception system and mode determination method
    22.
    发明授权
    Multi-user data transmission/reception system and mode determination method 有权
    多用户数据发送/接收系统和模式确定方法

    公开(公告)号:US07916620B2

    公开(公告)日:2011-03-29

    申请号:US11965576

    申请日:2007-12-27

    IPC分类号: H04B7/02 H04B15/00 H04L27/26

    摘要: A multi-user data transmission/reception system includes at least one mobile station to receive a pilot signal, select a preferred mode, a preceding matrix index, a beamforming vector index, and a quantized capacity level using the pilot signal, and transmit the preferred mode, the precoding matrix index, the beamforming vector index, and the quantized capacity level; and a base station to transmit the pilot signal to the at least one mobile station, receive the preferred mode, the precoding matrix index, the beamforming vector index, and the quantized capacity level from the at least one mobile station, and determine an optimal mode, an optimal precoding matrix, and an optimal beamforming vector using a lookup table storing an expected capacity for each capacity quantization interval.

    摘要翻译: 多用户数据发送/接收系统包括用于接收导频信号的至少一个移动站,使用导频信号选择优选模式,前一矩阵索引,波束成形向量索引和量化容量级别,并且发送优选的 模式,预编码矩阵索引,波束成形向量索引和量化容量级别; 以及基站,用于向所述至少一个移动站发送所述导频信号,从所述至少一个移动台接收所述优选模式,所述预编码矩阵索引,所述波束成形向量索引和所述量化容量级别,并且确定最佳模式 ,最优预编码矩阵以及使用存储每个容量量化间隔的预期容量的查找表的最优波束成形向量。

    MULTI-USER DATA TRANSMISSION/RECEPTION SYSTEM AND MODE DETERMINATION METHOD
    25.
    发明申请
    MULTI-USER DATA TRANSMISSION/RECEPTION SYSTEM AND MODE DETERMINATION METHOD 有权
    多用户数据传输/接收系统和模式确定方法

    公开(公告)号:US20080187060A1

    公开(公告)日:2008-08-07

    申请号:US11965576

    申请日:2007-12-27

    IPC分类号: H04K1/10

    摘要: A multi-user data transmission/reception system includes at least one mobile station to receive a pilot signal, select a preferred mode, a preceding matrix index, a beamforming vector index, and a quantized capacity level using the pilot signal, and transmit the preferred mode, the preceding matrix index, the beamforming vector index, and the quantized capacity level; and a base station to transmit the pilot signal to the at least one mobile station, receive the preferred mode, the preceding matrix index, the beamforming vector index, and the quantized capacity level from the at least one mobile station, and determine an optimal mode, an optimal precoding matrix, and an optimal beamforming vector using a lookup table storing an expected capacity for each capacity quantization interval.

    摘要翻译: 多用户数据发送/接收系统包括用于接收导频信号的至少一个移动站,使用导频信号选择优选模式,前一矩阵索引,波束成形向量索引和量化容量级别,并且发送优选的 模式,前面的矩阵索引,波束成形向量索引和量化容量级别; 以及基站,用于向所述至少一个移动台发送所述导频信号,从所述至少一个移动台接收所述优选模式,所述先前矩阵索引,所述波束形成向量索引和所述量化容量级别,并且确定最佳模式 ,最优预编码矩阵以及使用存储每个容量量化间隔的预期容量的查找表的最优波束成形向量。

    Low-complexity, symbol-based, reduced substreams maximum likelihood decoder and method for a multiple-input, multiple-output communication system
    27.
    发明授权
    Low-complexity, symbol-based, reduced substreams maximum likelihood decoder and method for a multiple-input, multiple-output communication system 有权
    低复杂度,基于符号的减少子流最大似然解码器和多输入多输出通信系统的方法

    公开(公告)号:US07321644B2

    公开(公告)日:2008-01-22

    申请号:US10863455

    申请日:2004-06-08

    IPC分类号: H03D1/00

    摘要: A greater likelihood decoder, a method of deriving a reduced substreams maximum likelihood (RSML) decoded symbol vector and a multiple-input, multiple-output (MIMO) receiver incorporating the decoder or the method. In one embodiment, the decoder includes: (1) a suboptimal decoder that analyzes a received symbol vector to generate substream indicators and a decoded symbol vector estimate, (2) weakest substreams decision logic, coupled to the suboptimal decoder, that receives the substream indicators and selects weakest ones thereof and (3) subspace search logic, coupled to the suboptimal decoder and the weakest substreams decision logic, that further selects a reduced substreams maximum likelihood (RSML) decoded symbol vector from a subspace of decoded symbol vector candidates derived from the decoded symbol vector estimate and the weakest ones.

    摘要翻译: 更大似然解码器,导出减少的子流最大似然(RSML)解码符号向量的方法和包含解码器或方法的多输入多输出(MIMO)接收机的方法。 在一个实施例中,解码器包括:(1)分析接收的符号向量以产生子流指示符和解码的符号向量估计的次优解码器,(2)耦合到次优解码器的最弱子流决策逻辑,其接收子流指示符 并选择最弱的子码流决策逻辑,以及(3)子空间搜索逻辑,该子空间搜索逻辑耦合到次优解码器和最弱子流判决逻辑,其进一步从从解码符号向量候选导出的解码符号向量候选的子空间中选择减少的子流最大似然(RSML)解码符号向量 解码符号向量估计和最弱的符号向量估计。

    Method for demodulating signal and terminal and base station for executing the method
    28.
    发明授权
    Method for demodulating signal and terminal and base station for executing the method 有权
    用于解调信号的方法,终端和基站执行方法

    公开(公告)号:US08588318B2

    公开(公告)日:2013-11-19

    申请号:US12202385

    申请日:2008-09-01

    IPC分类号: H04L1/02 H04B7/02

    CPC分类号: H04L27/0012

    摘要: A method of modulating and/or demodulating a signal in a communication system and a terminal for demodulating a signal received from a base station are provided. A terminal includes a singular value extractor to extract at least one singular value of a channel matrix associated with a channel that is formed between a base station and the terminal, a modulation order determination unit to determine a modulation order based on the at least one singular value, and a received signal demodulator to demodulate a received signal according to the determined modulation order.

    摘要翻译: 提供了调制和/或解调通信系统中的信号的方法和用于解调从基站接收的信号的终端的方法。 终端包括奇异值提取器,用于提取与在基站和终端之间形成的信道相关联的信道矩阵的至少一个奇异值;调制阶确定单元,用于基于至少一个奇异值确定调制阶数 值和接收信号解调器,以根据所确定的调制阶数解调接收信号。

    Continuous Vacuum Pan
    30.
    发明申请
    Continuous Vacuum Pan 审中-公开
    连续真空盘

    公开(公告)号:US20110297331A1

    公开(公告)日:2011-12-08

    申请号:US13125243

    申请日:2009-09-10

    IPC分类号: B01D1/00 B01D1/06

    CPC分类号: C13B30/022 B01D9/0022

    摘要: This invention relates to a continuous vacuum pan for use in the sugar processing industry, and more particularly but not exclusively, to a vertical, double calandria, continuous vacuum pan. The vacuum pan includes a vessel having a first enclosed chamber and a second enclosed chamber. A first heat exchanger is located in the first chamber, with a first vapour space defined in the first chamber above the first heat exchanger. A second heat exchanger located in the second chamber, with a second vapour space defined in the second chamber above the second heat exchanger. The first heat exchanger and the second heat exchanger both have heat transfer medium inlets, and the vacuum pan is characterized therein that the heat transfer medium inlet of the second heat exchanger is in flow communication with the first vapour space, in order for vapour contained in the first vapour space to be conveyed through the second heat exchanger as heat transfer medium.

    摘要翻译: 本发明涉及一种用于糖加工工业的连续真空盘,更具体但非排他地涉及一种垂直双重排气管连续式真空锅。 真空盘包括具有第一封闭室和第二封闭室的容器。 第一热交换器位于第一室中,第一蒸气空间限定在第一热交换器上方的第一室中。 位于第二室中的第二热交换器,在第二热交换器上方的第二室中限定有第二蒸气空间。 第一热交换器和第二热交换器都具有传热介质入口,并且其特征在于,第二热交换器的传热介质入口与第一蒸气空间流动连通,以便包含在 作为传热介质通过第二热交换器输送的第一蒸气空间。