发明名称 METHOD AND APPARATUS FOR USING AN UNIQUE INDEX SET FOR PSC SEQUENCE IN A WIRELESS COMMUNICATION SYSTEM
摘要 Systems and methods are provided to generate a set of synchronization channel sequences that optimize time and frequency acquisition. A set of root indices of Zadoff-Chu sequences in a first domain (e.g., time domain) that optimize a performance metric or merit factor are identified. An optimal index is determined that also optimizes a performance metric in a reciprocal domain (e.g., frequency domain). For sequences of length Q2=N, a base sequence generated with an optimal sequence can be utilized to generate at least two disparate optimal sequences through sign-flip, conjugation, and periodic modulation operations. Evaluating a primary synchronization channel having length N of 63, an optimal pair of root indices of (28, 31, 32) and (31, 33, 35) provide a five-fold improvement in frequency offset error over conventional single index set of (25, 29, 34).
申请公布号 US2009086713(A1) 申请公布日期 2009.04.02
申请号 US20080145086 申请日期 2008.06.24
申请人 QUALCOMM INCORPORATED 发明人 LUO TAO
分类号 H04J3/06 主分类号 H04J3/06
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