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    • 5. 发明公开
    • SECONDARY SYNCHRONIZATION SIGNAL DETECTION METHOD AND DEVICE
    • VERFAHREN UND VORRICHTUNG ZUR ERKENNUNG VONSEKUNDÄRSYNCHRONISATIONSSIGNALEN
    • EP2437453A4
    • 2017-08-16
    • EP11796597
    • 2011-04-29
    • SANECHIPS TECH CO LTD
    • YI LIQIANG
    • H04L27/26
    • H04W56/00H04J11/0076H04L27/2656H04L27/2672H04L27/2675H04L27/2684H04L27/2695
    • The present invention discloses a method for detecting a secondary synchronization signal, including: calculating a channel estimation compensation value of each sub-carrier of a Secondary Synchronization Signal (SSS) symbol in different Cyclic Prefix (CP) modes; obtaining a coherent accumulative result of even half frames and a coherent accumulative result of odd half frames of each sub-carrier according to the channel estimation compensation value of each sub-carrier of said SSS symbol; generating a SSS sequence; obtaining an index of the SSS sequence corresponding to an over-threshold value of a first round detection, determining indexes composed of the SSS sequence used in a second round detection according to said index, using coherent accumulative results of all the sub-carriers in the even and odd half frames and SSS sequences of all the sub-carriers to obtain an over-threshold value of the second round detection; and obtaining a CP mode, and calculating a cell ID and a radio frame boundary. The present invention further discloses apparatuses for detecting a secondary synchronization signal. The present invention greatly reduces the calculation quantity of the correlation calculation without increasing the additional resource consumption.
    • 本发明公开了一种辅同步信号的检测方法,包括:计算不同循环前缀(CP)模式下辅同步信号(SSS)符号的每个子载波的信道估计补偿值; 根据所述SSS符号的每个子载波的信道估计补偿值,获得每个子载波的偶数帧的相干累加结果和奇数半帧的相干累加结果; 生成SSS序列; 获得第一轮检测的过阈值对应的SSS序列的索引,根据所述索引确定由第二轮检测使用的SSS序列组成的索引,使用所述第一轮检测的所有子载波的相干累加结果 偶数和奇数半帧以及所有子载波的SSS序列,以获得第二轮检测的超阈值; 并获得CP模式,并计算小区ID和无线帧边界。 本发明还公开了用于检测辅同步信号的设备。 本发明在不增加附加资源消耗的情况下大大减少了相关计算的计算量。
    • 8. 发明公开
    • ALGORITHM FOR PHYSICAL CELL IDENTIFIER ALLOCATION
    • 古代ZURODNUNG VON IDENTIFIKATORENFÜRPHYSISCHE ZELLEN
    • EP2929709A1
    • 2015-10-14
    • EP12798268.4
    • 2012-12-04
    • Nokia Solutions and Networks Oy
    • GARCIA, Ian Dexter
    • H04W8/26
    • H04J11/0069H04J11/0076H04W8/26H04W16/18H04W24/02H04W56/001H04W76/11
    • Methods, apparatus, and computer programs for automatically allocating physical layer cell identifiers A modulo 3 grouping and a modulo 30 grouping are provided for physical layer cell identifiers in a cellular communication system. The modulo 3 grouping is associated with first synchronization signal assignments and the modulo 30 grouping is associated with second synchronization signal assignments. A combination of first and second synchronization signals determines a physical layer cell identifier of a cell. A modulo 3 group is allocated to each of multiple cells of the system. After the allocation of the modulo 3 groups, a modulo 30 group is allocated to each of the multiple cells. The allocation of the modulo 30 groups incorporates the allocated modulo 3 group as a precondition for the modulo 30 grouping. To each cell, first and second synchronization signals are allocated on the basis of said allocation of the modulo 30 group.
    • 方法,装置和计算机程序自动分配物理层小区标识符。 为蜂窝通信系统中的物理层小区标识符提供模3分组和模30分组。 模3分组与第一同步信号分配相关联,并且模30分组与第二同步信号分配相关联。 第一和第二同步信号的组合确定单元的物理层单元标识符。 模3组分配给系统的多个单元。 在模3组的分配之后,将模30组分配给多个单元中的每一个。 模30组的分配将分配的模3组合作为模30分组的前提条件。 对于每个小区,基于模30组的所述分配来分配第一和第二同步信号。