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    METHODS AND APPARATUSES USING FILTER BANKS FOR MULTI-CARRIER SPREAD SPECTRUM SIGNALS
    2.
    发明公开
    METHODS AND APPARATUSES USING FILTER BANKS FOR MULTI-CARRIER SPREAD SPECTRUM SIGNALS 审中-公开
    使用滤波器组的多载波扩频信号的方法和设备

    公开(公告)号：EP3171562A1

    公开(公告)日：2017-05-24

    申请号：EP16202151.3

    申请日：2012-08-02

    申请人： Battelle Energy Alliance, LLC

    发明人： MORADI, Hussein ,  BEHROUZ, Farhang ,  KUTSCHE, Carl. A.

    IPC分类号： H04L27/26 ,  H04J11/00 ,  H04L1/04 ,  H04L5/00 ,  H04L9/08 ,  H04W12/04 ,  H04B1/69

    CPC分类号： H04B1/7093 ,  H04B1/69 ,  H04B1/707 ,  H04B1/709 ,  H04B1/71 ,  H04B2001/70935 ,  H04J11/0023 ,  H04K3/25 ,  H04K3/827 ,  H04L1/04 ,  H04L5/0021 ,  H04L9/0816 ,  H04L9/0875 ,  H04L27/264 ,  H04L2209/24 ,  H04L2209/80 ,  H04W12/04

    摘要： The present invention relates to a transmitter which includes a synthesis filter bank to spread a data symbol to a plurality of frequencies by encoding the data symbol on each frequency, apply a common pulse-shaping filter, and apply gains to the frequencies such that a power level of each frequency is less than a noise level of other communication signals within the spectrum. Each frequency is modulated onto a different evenly spaced subcarrier. A demodulator in a receiver converts a radio frequency input to a spread-spectrum signal in a baseband. A matched filter filters the spread-spectrum signal with a common filter having characteristics matched to the synthesis filter bank in the transmitter by filtering each frequency to generate a sequence of narrow pulses.; A carrier recovery unit generates control signals responsive to the sequence of narrow pulses suitable for generating a phase-locked loop between the demodulator, the matched filter, and the carrier recovery unit.

    摘要翻译： 本发明涉及包括合成滤波器组的发射机，该合成滤波器组通过在每个频率上对数据符号进行编码来将数据符号扩展到多个频率，应用公共脉冲整形滤波器并将增益应用于频率，使得功率 每个频率的电平低于频谱内其他通信信号的噪声电平。 每个频率被调制到不同的均匀间隔的副载波上。 接收器中的解调器将射频输入转换为基带中的扩频信号。 匹配滤波器通过对每个频率进行滤波以产生一系列窄脉冲，用具有与发射机中的合成滤波器组匹配的特性的公共滤波器来对扩频信号进行滤波。 载波恢复单元响应适于在解调器，匹配滤波器和载波恢复单元之间产生锁相环的窄脉冲序列产生控制信号。

    Frame Bandwidth Detection in a WLAN network supporting multiple transmission modes
    5.
    发明公开
    Frame Bandwidth Detection in a WLAN network supporting multiple transmission modes 审中-公开
    一种用于在多个传输模式检测帧宽度方法unterstützden无线网络

    公开(公告)号：EP2874462A1

    公开(公告)日：2015-05-20

    申请号：EP13306565.6

    申请日：2013-11-15

    申请人： Rivierawaves (RW)

    发明人： Meilhac, Lisa ,  Vandeburie, Cédric

    IPC分类号： H04W84/12 ,  H04L27/26

    CPC分类号： H04L41/0896 ,  H04B1/709 ,  H04B2001/70935 ,  H04L27/261 ,  H04L27/2666 ,  H04L43/0882 ,  H04W28/20 ,  H04W76/20 ,  H04W84/12 ,  H04W88/06

    摘要： A method for determining the bandwidth of an incoming frame in a wireless local area network (WLAN) is disclosed. The method comprises the following steps, executed at least by a processor, upon reception of a first plurality and a second plurality of samples of the frame, the first plurality of samples being representative of a first signal of the frame received at a primary WLAN channel and the second plurality of samples being representative of a second signal of the frame received at a secondary WLAN channel:
    - computing at least a correlation of a sample among the first plurality of samples with a sample among the second plurality of samples;
    - if the correlation exceeds a threshold then setting a receiver mode to a first bandwidth otherwise setting a receiver mode to a second bandwidth.
    A device corresponding to said method and a system integrating said device are also provided.

    摘要翻译： 一种用于确定性采矿方法对输入数据帧在无线局域网（WLAN）的带宽是盘游离缺失。 该方法包括以下步骤，至少执行时，由一个处理器，当第一多个和所述帧的样本的第二多个接收，样品表示所述帧的第一信号的所述第一多个在一个主无线信道接收 和样品表示所述帧的第二信号的所述第二多个在二次无线通道接收的： - 计算至少样品与样品的所述第二多个中的样本的第一组多个中的样本的相关性; - 如果相关超过阈值，则接收器模式设置为第一带宽的接收器模式，否则设定为第二带宽。 对应于所述方法和系统INTEGRA婷的装置所述因此提供了装置。

    DYNAMIC POWER SCALING OF AN INTERMEDIATE SYMBOL BUFFER ASSOCIATED WITH COVARIANCE COMPUTATIONS
    6.
    发明公开
    DYNAMIC POWER SCALING OF AN INTERMEDIATE SYMBOL BUFFER ASSOCIATED WITH COVARIANCE COMPUTATIONS 有权
    DYNAMISCHE LEISTUNGSSKALIERUNG EINES ZWISCHENSYMBOLPUFFERS IM ZUSAMMENHANG MIT KOVARIANZBERECHNUNGEN

    公开(公告)号：EP2745411A1

    公开(公告)日：2014-06-25

    申请号：EP12766419.1

    申请日：2012-09-21

    申请人： Ericsson Modems SA

    发明人： NAS, Ricky ,  SMEETS, Jean-Paul ,  VAN BERKEL, Cornelis

    IPC分类号： H04B1/7115

    CPC分类号： H04B1/7115 ,  H04B2001/70935 ,  H04B2201/709727

    摘要： An intermediate symbol buffer (ISB) configuration and method is provided such that the ISB memory comprises 15 portions, one for each HSDPA spreading code. Symbols associated with a spreading code are written to the memory portion associated with the same spreading code. When a covariance calculation is performed to obtain a more accurate channel estimate, only the symbols associated with spreading codes determined to be needed for the covariance calculation are written to the ISB by a buffer block and red from the ISB by a correlation core. The symbols associated with spreading codes that are not necessary for a covariance calculation may be masked from being written or read from the ISB. In some embodiments each memory portion is an individual memory block. In other embodiments a plurality of memory blocks may contain a plurality of memory portions, one memory partition designated, at least temporarily, or each spreading code.

    摘要翻译： 提供中间符号缓冲器（ISB）配置和方法，使得ISB存储器包括15个部分，每个HSDPA扩展码一个。 与扩展码相关联的符号被写入与相同扩展码相关联的存储器部分。 当执行协方差计算以获得更准确的信道估计时，只有与确定为协方差计算所需的扩展码相关联的符号才被缓冲块写入ISB，并通过相关核心从ISB写入红色。 与协方差计算所不需要的扩展码相关联的符号可以被掩蔽从ISB的写入或读取。 在一些实施例中，每个存储器部分是单个存储器块。 在其他实施例中，多个存储器块可以包含多个存储器部分，至少临时地为每个扩展码指定一个存储器分区。

    MULTISTAGE DESPREADING OF SPREAD SPECTRUM COMMUNICATION SIGNALS
    7.
    发明公开
    MULTISTAGE DESPREADING OF SPREAD SPECTRUM COMMUNICATION SIGNALS 有权
    扩频通信信号的多级解扩

    公开(公告)号：EP1634382A1

    公开(公告)日：2006-03-15

    申请号：EP03817321.7

    申请日：2003-06-18

    申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ)

    发明人： SCHOTTEN, Hans, Dieter

    IPC分类号： H04B1/707

    CPC分类号： H04B1/7093 ,  H04B2001/70935 ,  H04B2201/70703

    摘要： A method and a component for despreading a multi-code signal that has been generated using two or more spreading codes with different spreading factors are described. The method comprises subjecting the signal to a first despreading step (40) that includes a first Fast Hadamard Transform (FHT) to jointly despread the spreading codes. During the first despreading step one or more spreading codes are despread only partially. The signal or signal portion including one or more partially despread spreading codes are then subjected to one or more further despreading steps (42).

    METHOD AND APPARATUS FOR CHANNEL AMPLITUDE ESTIMATION AND INTERFERENCE VECTOR CONSTRUCTION
    8.
    发明公开
    METHOD AND APPARATUS FOR CHANNEL AMPLITUDE ESTIMATION AND INTERFERENCE VECTOR CONSTRUCTION 有权
    方法和设备信道幅度估计UNDSTÖRUNGSVEKTORKONSTRUKTION

    公开(公告)号：EP1579591A2

    公开(公告)日：2005-09-28

    申请号：EP03774876.1

    申请日：2003-10-15

    申请人： Tensorcomm Incorporated

    发明人： NARAYAN, Anand, P. ,  JAIN, Prashant

    IPC分类号： H04B1/69 ,  H04B1/707 ,  H04B1/713 ,  H04J11/00

    CPC分类号： H04J13/0048 ,  H04B1/7107 ,  H04B1/7117 ,  H04B2001/70935 ,  H04B2201/70703 ,  H04B2201/70707 ,  H04J11/0056

    摘要： The present invention is directed to an efficient method and apparatus for channel determination and interference vector construction in accordance with spread spectrum systems. Channel determination is performed using a first series of fast Walsh transform steps. The results of the first set of fast Walsh transform steps corresponding to valid communication system channels are compared to a threshold value. Results derived from the first set of fast Walsh transform steps are then passed through a second set of fast Walsh transform steps with the number of steps performed for a set of results determined by the symbol length associated with the channels from which the amplitude information was derived. The interference vectors thus obtained for each valid symbol length may then be combined to form a composite interference vector. The fast Walsh transform steps and other steps may be performed using shared hardware components or software modules.

    Spreading code assigning method and base transceiver station
    9.
    发明公开
    Spreading code assigning method and base transceiver station 审中-公开
    Verfahren zum Zuweisen von Spreizkodes und Sender-Empfängerbasisstation

    公开(公告)号：EP1324505A1

    公开(公告)日：2003-07-02

    申请号：EP02017812.5

    申请日：2002-08-07

    申请人： MITSUBISHI DENKI KABUSHIKI KAISHA

    发明人： Takano, Michiaki, Mitsubishi Denki Kabushiki K.

    IPC分类号： H04B1/707

    CPC分类号： G06F17/15 ,  G06F17/145 ,  H04B2001/70935 ,  H04B2201/70707

    摘要： A multiplexed chip bit sequence {B0(16,k);k=00-15} is subject to butterfly computation so as to retrieve a symbol bit sequence for each one of channelization codes {Cch(16,k);k=00-15}. By omitting butterfly computation steps corresponding to unassigned channelization codes, or by assigning codes so that the number of unnecessary butterfly computation steps is increased, the despreading process in the mobile terminal is reduced in scale.

    摘要翻译： 多路复用的码片比特序列äB0（16，k）; k =00-15ü进行蝶形运算，以便为每个信道化码äCch（16，k）; k =00-15ü检索符号比特序列。 通过省略与未分配的信道化码相对应的蝶形计算步骤，或通过分配代码使得不必要的蝴蝶计算步骤的数量增加，移动终端中的解扩过程在规模上减小。

    DYNAMIC POWER SCALING OF AN INTERMEDIATE SYMBOL BUFFER ASSOCIATED WITH COVARIANCE COMPUTATIONS
    10.
    发明授权
    DYNAMIC POWER SCALING OF AN INTERMEDIATE SYMBOL BUFFER ASSOCIATED WITH COVARIANCE COMPUTATIONS 有权
    与协方差计算相关的中间符号缓冲器的动态功率比例

    公开(公告)号：EP2745411B1

    公开(公告)日：2017-09-13

    申请号：EP12766419.1

    申请日：2012-09-21

    申请人： Telefonaktiebolaget LM Ericsson (publ)

    发明人： NAS, Ricky ,  SMEETS, Jean-Paul ,  VAN BERKEL, Cornelis

    IPC分类号： H04B1/7115

    CPC分类号： H04B1/7115 ,  H04B2001/70935 ,  H04B2201/709727

    摘要： An intermediate symbol buffer (ISB) configuration and method is provided such that the ISB memory comprises 15 portions, one for each HSDPA spreading code. Symbols associated with a spreading code are written to the memory portion associated with the same spreading code. When a covariance calculation is performed to obtain a more accurate channel estimate, only the symbols associated with spreading codes determined to be needed for the covariance calculation are written to the ISB by a buffer block and red from the ISB by a correlation core. The symbols associated with spreading codes that are not necessary for a covariance calculation may be masked from being written or read from the ISB. In some embodiments each memory portion is an individual memory block. In other embodiments a plurality of memory blocks may contain a plurality of memory portions, one memory partition designated, at least temporarily, for each spreading code.

    摘要翻译： 提供中间码元缓冲器（ISB）配置和方法，使得ISB存储器包括15个部分，每个HSDPA扩展码一个。 与扩展码相关的符号被写入与相同扩展码相关联的存储器部分。 当执行协方差计算以获得更准确的信道估计时，只有与确定为协方差计算所需的扩展码相关联的码元通过缓冲器块被写入ISB，并且由相关核心从ISB写入。 与协方差计算所不需要的扩频码相关的符号可能被屏蔽，无法从ISB写入或读取。 在一些实施例中，每个存储器部分是单独的存储器块。 在其他实施例中，多个存储器块可以包含多个存储器部分，对于每个扩展码至少暂时指定一个存储器分区。