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    • 71. 发明申请
    • Method and Apparatus for Impairment Correlation Estimation in MIMO Systems
    • MIMO系统中损伤相关估计的方法和装置
    • US20080205562A1
    • 2008-08-28
    • US11679541
    • 2007-02-27
    • Elias JonssonAndres Reial
    • Elias JonssonAndres Reial
    • H04B7/10
    • H04W72/12H04B1/7103H04B1/712H04B7/0615H04B7/0669H04B7/0697H04B2201/70701H04B2201/709727Y02D70/40Y02D70/444
    • The teachings herein disclose methods and apparatus that simplify impairment correlation estimation for received signal processing, based on determining, for any given processing interval, which impairment contributors should be considered in the estimation of overall received signal impairment correlations. These simplifications reduce computational processing requirements, allowing reduced circuit complexity and/or reduced operating power, and improve receiver performance. A corresponding transmitter and transmission method include transmitting multiple information streams to targeted receivers according to ongoing scheduling, and controlling the ongoing scheduling to reduce the number of impairment contributors considered in impairment correlation estimation at the targeted receivers. In one embodiment, a receiver identifies which impairment contributors to consider based on receiving control information. In another embodiment, the receiver identifies the impairment contributors to consider based on background processing, e.g., background determination of parametric model fitting parameters for a plurality of impairment contributors, and observing those model fitting parameters over time.
    • 本文的教导公开了简化对接收信号处理的损害相关估计的方法和装置,其基于对于任何给定的处理间隔,在估计总体接收信号损害相关中应考虑哪些损害贡献者。 这些简化减少了计算处理要求,从而降低了电路复杂度和/或降低了操作功率,并提高了接收机性能。 相应的发射机和传输方法包括根据正在进行的调度向目标接收机发送多个信息流,并控制正在进行的调度,以减少目标接收机的损害相关估计中所考虑的损害贡献者的数量。 在一个实施例中,接收机基于接收控制信息识别要考虑的损害贡献者。 在另一个实施例中,接收机基于背景处理识别要考虑的损害贡献者,例如用于多个损害贡献者的参数模型拟合参数的背景确定,以及随时间观察这些模型拟合参数。
    • 72. 发明授权
    • Cell search method suitable for initial cell search and target cell search
    • 适用于初始小区搜索和目标小区搜索的小区搜索方法
    • US07394801B2
    • 2008-07-01
    • US10462689
    • 2003-06-17
    • Che-Li Lin
    • Che-Li Lin
    • H04J3/06
    • H04B1/70735H04B1/7083H04B1/7113H04B1/7117H04B1/712
    • A wireless device generates a peak profile for a primary synchronization channel (PSCH), and has a synchronization stage for performing code group identification and scrambling code identification. A first peak from the peak profile is chosen. The first peak has a first path position. The synchronization stage is handed the first path position to obtain a first code group number and a first code number associated with the first peak. A multi-path search window is then opened in the peak profile around the first path position. A second peak within the multi-path search window is selected, and a verification procedure is performed on this second peak to determine if the second peak has a code number that is identical to the first code number. The first code group number is assigned to the second peak if the code number of the second peak is identical to the first code number.
    • 无线设备产生用于主同步信道(PSCH)的峰值配置,并且具有用于执行码组识别和扰码识别的同步级。 选择峰值曲线的第一个峰值。 第一个峰值具有第一个路径位置。 交换同步级的第一路径位置以获得与第一峰相关联的第一代码组号和第一代码号。 然后在围绕第一路径位置的峰值轮廓中打开多路径搜索窗口。 选择多路径搜索窗口内的第二峰值,并且对该第二峰值执行验证过程,以确定第二峰值是否具有与第一代码号相同的代码。 如果第二个峰值的代号与第一个代码号相同,则第一个代码组编号被分配给第二个峰值。
    • 75. 发明申请
    • Simplified timing correction for data despreading of serial offset quadrature pulse-shaped spread signals
    • 用于串行偏移正交脉冲扩展信号的数据解扩的简化时序校正
    • US20080101442A1
    • 2008-05-01
    • US11313476
    • 2005-12-21
    • Donald John Rasmussen
    • Donald John Rasmussen
    • H04B1/00
    • H04L27/22H04B1/7117H04B1/712H04L27/2003
    • A simplified timing correction method is provided for data despreading of serial offset quadrature pulse-shaped spread signals. The simplified timing correction algorithm is applied to a rake receiver for improved performance in a multi-path channel. Serial formatting of the spreading modulation waveform is selected to reduce the SYNC/serial probe correlation complexity. The method includes the steps of: (a) decimating serial inphase (I) and quadrature (Q) signals to form decimated I and Q even samples and decimated I and Q odd samples; (b) obtaining an autocorrelation profile of a spreading sequence used by the receiver; (c) detecting a synchronization starting point using the I and Q even samples; and (d) deciding to either move, or not move, the synchronization starting point, based on the autocorrelation profile obtained in step (b). Step (d) decides to move the synchronization starting point, and uses the I and Q odd samples for subsequent despreading of the I and Q signals. Step (d) also decides not to move the synchronization starting point, and uses the I and Q even samples for subsequent despreading of the I and Q signals.
    • 提供了一种用于串行偏移正交脉冲扩展信号的数据解扩的简化定时校正方法。 将简化的时序校正算法应用于耙式接收机,以改善多路径信道的性能。 选择扩展调制波形的串行格式化以减少SYNC /串行探针相关复杂度。 该方法包括以下步骤:(a)抽取串行同相(I)和正交(Q)信号,以形成抽取的I和Q均匀采样和抽取的I和Q奇数样本; (b)获得由接收机使用的扩展序列的自相关分布; (c)使用I和Q均匀样本检测同步起始点; 以及(d)基于在步骤(b)中获得的自相关曲线,决定移动或不移动同步起始点。 步骤(d)决定移动同步起始点,并使用I和Q奇数样本来进行I和Q信号的后续解扩。 步骤(d)还决定不移动同步起始点,并且使用I和Q偶数采样来进行I和Q信号的后续解扩。
    • 76. 发明申请
    • Method and Apparatus for Selecting a Subset of Modeled Impairment Correlation Terms for Use in Received Signal Processing
    • 用于选择接收信号处理中使用的建模损伤相关条款子集的方法和装置
    • US20080095279A1
    • 2008-04-24
    • US11550901
    • 2006-10-19
    • Andres ReialKarin EngdahlBo Goransson
    • Andres ReialKarin EngdahlBo Goransson
    • H04L27/06
    • H04B1/712H04B2201/709727H04L25/03343H04L2025/03426
    • A subset of modeled impairment correlation terms are selected for use in received signal processing. According to one embodiment, a subset of modeled impairment correlation terms is selected and a composite impairment correlation term is determined based on the subset of modeled impairment correlation terms. The composite impairment correlation term may be determined by scaling the modeled impairment correlation terms included in the subset by respective model fitting parameters. The scaled modeled impairment correlation terms are then combined to form the composite impairment correlation term. The subset of modeled impairment correlation terms may be selected based on their respective model fitting parameters. In one embodiment, the modeled impairment terms having a model fitting parameter that satisfy a threshold are included in the subset while those that do not are excluded. The composite impairment correlation term may be used for received signal processing, e.g., demodulation or signal-to-interference estimation.
    • 选择模型损害相关项的子集用于接收信号处理。 根据一个实施例,选择模型化损害相关项的子集,并且基于建模的损害相关项的子集来确定复合损害相关项。 复合损害相关项可以通过用相应的模型拟合参数缩放包括在子集中的建模损伤相关项来确定。 然后将缩放的建模的损伤相关项组合以形成复合损害相关项。 可以基于它们各自的模型拟合参数来选择建模的损伤相关项的子集。 在一个实施例中,具有满足阈值的模型拟合参数的建模的损伤项包括在子集中,而不被排除。 复合损害相关项可以用于接收信号处理,例如解调或信号对干扰估计。