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1. 发明申请

WO2011133647A2 A SYSTEM AND METHOD FOR SSS DETECTION UNDER CARRIER FREQUENCY OFFSET IN AN ORTHOGONAL FREQUENCY-DIVISION MULTIPLE ACCESS DOWNLINK CHANNEL 审中-公开
标题翻译：在正交频分多址接入下行链路信道下的载波频率偏移下SSS检测的系统和方法
公开(公告)号：WO2011133647A2
公开(公告)日：2011-10-27
申请号：PCT/US2011/033210
申请日：2011-04-20
申请人： PCTEL, INC. , ZHA, Wei , SOLTANIAN, Amir , GUO, Yuelun , LU, Wei
发明人： ZHA, Wei , SOLTANIAN, Amir , GUO, Yuelun , LU, Wei
IPC分类号： H04W56/00 , H04J11/00
CPC分类号： H04J11/0069 , H04L5/0007 , H04L27/0014 , H04L27/2657 , H04L27/2675 , H04L2027/0046
摘要： A system and method for SSS detection under carrier frequency offset in an orthogonal frequency-division multiple access (OFDMA) downlink channel. A processor receives a signal sample that includes a transmission on a primary synchronization signal (PSS) and a transmission on a secondary synchronization signal (SSS). The processor determines a correlation "P" of a first symbol transmitted in the PSS of the signal sample to a first known symbol at each time "t" of time increments k of the signal sample and a correlation "S" of a second symbol transmitted in the a SSS to a second known symbol at each time t-.5/7msecs. The processor receives a candidate phase rotation of θ?i#191 from a set of "i" candidates and determines a correlation "Cmax" over the time increments k representing a maximum amplitude of a combined correlation of S and P, with P rotated by θ?i#191. The processor determines the cell identifier from the first and second known symbols that produced S and P of C max and an estimation of the frequency offset between a transmitter of the signal sample and a receiver of the signal sample.
摘要翻译：一种用于在正交频分多址（OFDMA）下行链路信道中的载波频率偏移下的SSS检测的系统和方法。处理器接收包括主同步信号（PSS）上的传输和辅同步信号（SSS）上的传输的信号样本。处理器在信号样本的时间增量k的每个时间“t”处确定在信号样本的PSS中发送的第一符号与第一已知符号的相关“P”，并且发送的第二符号的相关“S” 在SSS到第二个已知的符号，每次t-.5 / 7msecs。处理器从一组“i”个候选者接收到θi＃191的候选相位旋转，并且确定在表示S和P的组合相关的最大振幅的时间增量k之间的相关“Cmax”，其中P旋转 ?? I＃191。处理器从产生C max的S和P的第一和第二已知符号确定信元标识符，以及信号样本的发射机与信号样本的接收机之间的频率偏移的估计。

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