一种LTE-A帧定时同步算法的AISC设计与实现

ASIC design and implementation of a LTE-A frame timing synchronization scheme

研究了一种TD-LTE-Advanced系统中基于同步信号的帧定时同步算法,对该算法进行仿真和分析,并提出算法实现方案。然后,根据精度、面积、功耗、可扩展性等需求,确定了ASIC实现策略以及实现方案,并对帧同步和FFT模块进行了ASIC的详细设计实现。最后经过仿真、验证和逻辑综合,得出ASIC设计能够达到预期功能目标。该方案在功耗和面积上有一定的优势,本文ASIC设计的面积比同类模块小8.8%,功耗低9.3%。

The paper researches a frame timing synchronization algorithm based on synchronization signals in TD- LTE- Advanced system, simulate the algorithm, do some necessary analysis and propos a realization scheme. Then, the strategies and scheme of A-SIC realization are determined according to the precision, area, power consumption and other requirements, and the ASIC realization of frame synchronization module and FFT module are completed. Finally, through simulation, verification and logic synthesis, results show that the module can reach the expected goals of the functions. The ASIC design in this thesis has advantages in both power consumption and area size, by comparing with the similar module, the area of the ASIC design in this thesis is smaller about 8. 8percent, power consumption is lower about 9. 3 percent.