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    • 92. 发明授权
    • Synchronization to pseudo random number sequence with sign ambiguity in
communications systems
    • 通信系统中符号模糊的伪随机数序列同步
    • US5754604A
    • 1998-05-19
    • US689040
    • 1996-07-30
    • Gang LiRui WangIouri TrofimovAlexandre ChlomaMikhail BakoulineVitali Kreindeline
    • Gang LiRui WangIouri TrofimovAlexandre ChlomaMikhail BakoulineVitali Kreindeline
    • H04B1/707H04B1/7075H04B7/26H04J13/00H04L7/00H04L7/02
    • H04B1/70752H04B1/70753H04J13/0022
    • A method is disclosed for synchronizing, in the presence of sign ambiguity, to a pseudo random maximal length sequence having a characteristic polynomial of order k with a coefficients vector A given by: A=�1 a.sub.1 a.sub.2 . . . a.sub.k-1 1! where each of the coefficients a.sub.1 to a.sub.k-1 is 1 for an intermediate tap location and otherwise is 0. A received symbol sequence is supplied to and shifted through a K=k+1 stage shift register with P intermediate taps in positions determined by a coefficients vector A.sub.in given by: A.sub.in =�1 a.sub.1 (a.sub.1 .sym.a.sub.2) (a.sub.2 .sym.a.sub.3) . . . (a.sub.k-2 .sym.a.sub.k-1) a.sub.k-1 1! where a.sub.1 and a.sub.k-1 are the inverse of a.sub.1 and a.sub.k-1 respectively and .sym. denotes a modulo-2 sum, whereby the shift register has P intermediate taps where P is a positive integer less than K. A respective correlation signal is recursively added at an input for the received symbol sequence and at each intermediate tap. Each correlation signal is produced by correlating the P+1 signals from said input, intermediate taps, and output other than the signal to which the respective correlation signal is added. The invention is particularly applicable to pilot synchronization in CDMA terminals.
    • 公开了一种用于在符号歧义存在的情况下同步具有具有系数向量A的特征多项式的伪随机最大长度序列的方法,该系数向量A由下式给出:A = [a1a a2。 。 。 ak-1 1]其中,对于中间抽头位置,系数a1至ak-1中的每一个为1,否则为0.接收到的符号序列被提供给并通过具有P个中​​间抽头的K = k + 1级移位寄存器 在由Ain = [1 + E,ovs a + EE 1(a1(+)a2)(a2(+)a3)给出的系数矢量Ain确定的位置。 。 。 (ak-2(+)ak-1)+ E,ovs a + EE k-1 1]其中+ E,ovs a + EE 1和+ E,ov a + EE k-1是a1和ak的倒数 -1,(+)表示模2和,由此移位寄存器具有P个中​​间抽头,其中P是小于K的正整数。相应的相关信号在接收符号序列的输入处和每个相关信号递归地相加 中间水龙头 每个相关信号是通过将来自所述输入的P + 1信号,中间抽头和除了相关相关信号所添加的信号之外的输出相关而产生的。 本发明特别适用于CDMA终端的导频同步。
    • 94. 发明授权
    • Method and apparatus for buffering and obtaining resources, resource buffering system
    • 缓冲和获取资源的方法和装置,资源缓冲系统
    • US09503518B2
    • 2016-11-22
    • US13446777
    • 2012-04-13
    • Gang LanRui WangChen GongShuguo Zhou
    • Gang LanRui WangChen GongShuguo Zhou
    • G06F15/16H04L29/08
    • H04L67/1029H04L67/1002H04L67/1012H04L67/1023H04L67/2852
    • A method and an apparatus for buffering and obtaining resources as well as a resource buffering system are disclosed. The method includes: obtaining an access popularity value of a resource from a database at intervals of a first preset time, and obtaining load values of cache servers from the database if determining that the access popularity value reaches a preset first threshold; and determining a duplication cache server for duplicating the resource according to the access popularity value and the load values, and notifying the duplication cache server to duplicate the resource from a cache server that stores the resource and buffer the resource. The method overcome the problems in the prior, namely, the same resource is buffered in only one cache server and the relatively idle cache servers are unable to share loads with busy cache servers. The method improves extensibility and working efficiency of the buffering system.
    • 公开了一种用于缓冲和获取资源以及资源缓冲系统的方法和装置。 该方法包括:以第一预设时间间隔从数据库获取资源的访问普及度值,以及如果确定访问受欢迎度值达到预设的第一阈值,则从数据库获得缓存服务器的负载值; 以及根据所述访问流行度值和所述负载值确定用于复制所述资源的复制高速缓存服务器,并且通知所述复制缓存服务器从存储所述资源的缓存服务器复制所述资源并对所述资源进行缓冲。 该方法克服了以前的问题,即相同的资源仅在一个缓存服务器中缓冲,相对空闲的缓存服务器无法与忙缓存服务器共享负载。 该方法提高了缓冲系统的可扩展性和工作效率。
    • 95. 发明授权
    • Failure recovery and error correction techniques for data loading in information warehouses
    • 信息仓库中数据加载的故障恢复和纠错技术
    • US09218377B2
    • 2015-12-22
    • US12134065
    • 2008-06-05
    • Ying ChenBin HeAna LelescuJames J. RhodesRui Wang
    • Ying ChenBin HeAna LelescuJames J. RhodesRui Wang
    • G06F17/30G06F11/14G06F7/00
    • G06F17/30309G06F11/1469G06F11/1471
    • A method of data loading for large information warehouses includes performing checkpointing concurrently with data loading into an information warehouse, the checkpointing ensuring consistency among multiple tables; and recovering from a failure in the data loading using the checkpointing. A method is also disclosed for performing versioning concurrently with data loading into an information warehouse. The versioning method enables processing undo and redo operations of the data loading between a later version and a previous version. Data load failure recovery is performed without starting a data load from the beginning but rather from a latest checkpoint for data loading at an information warehouse level using a checkpoint process characterized by a state transition diagram having a multiplicity of states; and tracking state transitions among the states using a system state table.
    • 大型信息仓库的数据加载方法包括:将数据加载到信息仓库中同时进行检查点检查,确保多个表格之间的一致性; 并使用检查点从数据加载失败中恢复。 还公开了一种与数据加载到信息仓库中同时进行版本控制的方法。 版本控制方法可以处理在更高版本和先前版本之间的数据加载的撤消和重做操作。 执行数据加载失败恢复,而不从一开始就开始数据加载,而是从最新检查点开始,使用特征在于具有多个状态的状态转换图的检查点进程在信息仓库级别进行数据加载。 并使用系统状态表来跟踪状态之间的状态转换。
    • 96. 发明申请
    • METHODS, APPARATUSES, AND COMPUTER PROGRAM PRODUCTS FOR OUT-OF-BAND SENSING IN A COGNITIVE LTE SYSTEM
    • 方法,设备和计算机程序产品用于认证LTE系统中的带外感测
    • US20150156650A1
    • 2015-06-04
    • US14387011
    • 2012-03-26
    • Haitao LiHaipeng LeiKodo ShuRui WangHonglin HuHuiyue YiXiumei Yang
    • Haitao LiHaipeng LeiKodo ShuRui WangHonglin HuHuiyue YiXiumei Yang
    • H04W24/08
    • H04W24/08H04W16/14H04W72/085
    • Provided are methods, corresponding apparatuses, and computer program products for performing out-of-band sensing on an unlicensed frequency band. A method comprises sending a configuration message for configuring measurement on at least one channel in a frequency band of a primary system; receiving a measurement report made based upon the configuration message; and determining the usability of the at least one channel based upon the measurement report, wherein the configuration message includes information regarding a respective predetermined threshold of energy detection or primary-system-feature detection, and the measurement report is for reception when a measured energy detection value or a measured primary-system-feature detection value of a received signal on the at least one channel is less than the respective predetermined threshold. With the claimed inventions, the spectrum efficiency would be improved and interference between a secondary system and an LTE system could be alleviated.
    • 提供了用于在非许可频带上执行带外感测的方法,相应的装置和计算机程序产品。 一种方法包括发送用于在主系统的频带中的至少一个信道上配置测量的配置消息; 接收基于配置消息的测量报告; 以及基于所述测量报告确定所述至少一个信道的可用性,其中所述配置消息包括关于能量检测或主系统特征检测的相应预定阈值的信息,并且所述测量报告用于当测量的能量检测 在所述至少一个信道上的接收信号的值或测量的主系统特征检测值小于相应的预定阈值。 通过要求保护的发明,能够提高频谱效率,可以减轻二次系统与LTE系统之间的干扰。