摘要
在LTE系统小区搜索中，当实现定时同步和频率同步后，需要检测CP类型以及小区组标识，从而实现帧同步和获得小区ID．文章提出了一种首先利用SSS的对称性进行CP检测后进行SSS检测的算法，降低了原有算法的复杂度。SSS检测算法通过使用子帧0和子帧5的辅同步信号的联合检测，提高了算法的性能。仿真结果显示，该算法具有良好的检测性能和较低的复杂度。
In the cell search of the LTE systems, in order to achieve frame synchronization and obtain the cell ID, when achieve timing synchronization and frequency synchronization, the UE needs to detect the CP type and the physical-layer cell identity group. In general, it is complex to detect with a correlation operation between the received secondary synchronization signal in according with different cp type and the local secondary synchronization signal. To achieve low complexity, we propose an algorithm that detects the type of cp previously using the SSS symmetry and then detects SSS. The SSS detection algorithm adopts the joint detection by using the subframe 0 and subframe 5 to improve the performance of the algorithm. The simulation results show that the proposed algorithm has a good detection performance and lower complexity.
出处
《电光系统》
2013年第1期51-54,共4页
Electronic and Electro-optical Systems
