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Erschienen in:
2019 | OriginalPaper | Buchkapitel
A Low Complexity Primary Synchronization Algorithm in LTE System
verfasst von : Zengshan Tian, Jian Xu, Xiaolong Yang
Erschienen in: Communications, Signal Processing, and Systems
Verlag: Springer Singapore
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Abstract
In LTE (Long Term Evolution) system, Primary synchronization effects calculation of physical cell identity and the recognition of full duplex mode directly. This paper presents an improved algorithm based on FFT fast correlation to realize the search for half frame data with the method of combining overlapping and segmented correlation, and make the preceding data cyclic shift to guarantee sequence integrity. The improved algorithm greatly improves the synchronization speed, and can meet the time delay requirements for time-frequency two-dimensional search. Theoretical analysis and experiments show that the algorithm can effectively reduce the amount of calculation and the synchronization time.