Abstract

For the Long Term Evolution (LTE) system in 3rd Generation Partnership Project (3GPP), the calculation of synchronization signal detection algorithm is very complex. According to the properties of the primary synchronization signal (PSS) and the secondary synchronization signal (SSS), a modified algorithm is proposed in this paper, which processes correlation of the received samples only once with sum of local PSS sequences to obtain the position of PSS and detects the position of SSS previously to reduce the times of SSS detection. The theoretical derivation and complexity of both conventional and modified algorithms are derived and compared. It comes to the conclusion that the modified algorithm can reduce at least 60% calculation. Finally through simulation, the algorithm has excellent performance in high mobility channel model Spatial Channel Model Extended (SCME).

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