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    • 2. 发明申请
    • Method and Device for Detecting Primary Synchronization Signal and Generating Sequence in Long Term Evolution (LTE) System
    • 用于在长期演进(LTE)系统中检测主同步信号和生成序列的方法和装置
    • US20120281629A1
    • 2012-11-08
    • US13521869
    • 2010-09-17
    • Peng ZhouYuefeng Chen
    • Peng ZhouYuefeng Chen
    • H04W56/00
    • H04J11/0073H04J13/14H04L27/2613H04L27/2643H04L27/2655H04L27/2692
    • The present invention discloses a method and a device for detecting a primary synchronization signal and generating a sequence in a LTE system, so as to solve the problem that the overhead for 3GPP LTE system to store a local primary synchronization sequence is too much during the initial cell search process. The method for detecting a primary synchronization signal includes: directly generating a local primary synchronization signal sequence with equal amplitude in the time domain as a matched filter; performing a front-end processing for a received signal; performing the matched filtering between the received signal after the front-end processing and the local primary synchronization signal sequence; judging the output amplitude of the signal sequence obtained after the matched filtering; and then obtaining a judgment result of the local primary synchronization signal sequence.
    • 本发明公开了一种用于检测主同步信号并在LTE系统中生成序列的方法和装置,以解决在初始化期间3GPP LTE系统存储本地主同步序列的开销太多的问题 小区搜索过程。 用于检测主同步信号的方法包括:在时域中直接产生具有相等振幅的本地主同步信号序列作为匹配滤波器; 对接收到的信号执行前端处理; 在前端处理之后的接收信号与本地主同步信号序列之间执行匹配滤波; 判断匹配滤波后得到的信号序列的输出幅度; 然后获得本地主同步信号序列的判断结果。
    • 3. 发明授权
    • Method for unifying secondary synchronization signal detection and frame timing synchronization
    • 统一二次同步信号检测与帧定时同步的方法
    • US08542783B2
    • 2013-09-24
    • US13259491
    • 2010-04-02
    • Peng ZhouYuefeng ChenYijun Shi
    • Peng ZhouYuefeng ChenYijun Shi
    • H04J1/00
    • H04W56/00H04B1/70752H04J11/0076H04L27/2613H04L27/2656
    • The present invention discloses a method for joint secondary synchronization signal detection and frame timing synchronization, including: (1) generating local secondary synchronization sequences SSC1—n and SSC2—n according to a sector number of a cell group; (2) converting a received time domain signal to a frequency domain signal to obtain secondary synchronization signals S1 and S2 to be detected; (3) performing inner product operation to obtain P1—n=P1—n−1+[S1,SSC1—n]+[S2,SSC2—n], and P2—n=P2—n−1+[S1,SSC2—n]+[S2,SSC1—n]; (4) selecting the maximum value P of absolute values of correlation values in the P1—n and P2—n, and judging whether the maximum value P is greater than a preset threshold Tmax, (5) if yes, taking the index of the maximum value P as an ID number of the cell group, or else, further carrying out step (2), and then further carrying out step (3).
    • 本发明公开了一种联合二次同步信号检测和帧定时同步的方法,包括:(1)根据小区组的扇区号生成本地辅同步序列SSC1-n和SSC2-n; (2)将接收到的时域信号转换为频域信号,以获得待检测的次同步信号S1和S2; (3)执行内积运算以获得P1-n = P1-n-1 + [S1,SSC1-n] + [S2,SSC2-n]和P2-n = P2-n-1 + [S1,SSC2 -n] + [S2,SSC1-n]; (4)选择P1-n和P2-n中的相关值的绝对值的最大值P,以及判断最大值P是否大于预设阈值Tmax;(5)如果是,则以 最大值P作为单元组的ID号,否则进一步执行步骤(2),然后进一步执行步骤(3)。
    • 4. 发明申请
    • Method for Unifying Secondary Synchronization Signal Detection and Frame Timing Synchronization
    • 用于统一二次同步信号检测和帧定时同步的方法
    • US20120093267A1
    • 2012-04-19
    • US13259491
    • 2010-04-02
    • Peng ZhouYuefeng ChenYijun Shi
    • Peng ZhouYuefeng ChenYijun Shi
    • H04L7/04H04L27/06H04L27/00
    • H04W56/00H04B1/70752H04J11/0076H04L27/2613H04L27/2656
    • A method for joint secondary synchronization signal detection and frame timing synchronization includes: (1) generating local secondary synchronization sequences SSC1—n and SSC2—n according to a sector number of a cell group; (2) converting a received time domain signal to a frequency domain signal to obtain secondary synchronization signals S1 and S2 to be detected; (3) performing inner product operation to obtain P1—n=P1—n−1+[S1,SSC1—n]+[S2,SSC2—n], and P2—n=P2—n−1+[S1,SSC2—n]+[S2,SSC1—n]; (4) selecting the maximum value P of absolute values of correlation values in the P1—n and P2—n, and judging whether the maximum value P is greater than a preset threshold Tmax, (5) if yes, taking the index of the maximum value P as an ID number of the cell group, or else, further carrying out step (2), and then further carrying out step (3).
    • 联合次同步信号检测和帧定时同步的方法包括:(1)根据小区组的扇区号产生本地辅同步序列SSC1-n和SSC2-n; (2)将接收到的时域信号转换为频域信号,以获得待检测的次同步信号S1和S2; (3)执行内积运算以获得P1-n = P1-n-1 + [S1,SSC1-n] + [S2,SSC2-n]和P2-n = P2-n-1 + [S1,SSC2 -n] + [S2,SSC1-n]; (4)选择P1-n和P2-n中的相关值的绝对值的最大值P,以及判断最大值P是否大于预设阈值Tmax;(5)如果是,则以 最大值P作为单元组的ID号,否则进一步执行步骤(2),然后进一步执行步骤(3)。