一种LTE下行链路信号检测算法

Detection Algorithm for LTE Downlink Signal

研究一种适用于长期演进(LTE)系统下行信号的检测算法,并提出其实现架构。该算法使用统一结构对LTE系统下行各种传输模式的发送信号进行处理,以实现MRC、ZF和MMSE检测,在节省终端硬件开销的同时,简化在不同传输模式之间切换的软件控制,既能为LTE终端芯片设计提供低复杂度的接收机实现方案,也能为用户在使用LTE终端时节省更多的电力资源。仿真实验结果表明,该算法的综合性能优于传统MRC、ZF和MMSE检测算法。

This paper proposes a signal detection algorithm for the downlink of the Long Term Evolution（LTE） system. In this algorithm, a uniform structure of detector for different transmission scheme is derived to simplify the implementation of the receiver for the downlink of LTE system. The algorithm can carry out the functions of Maximum Ratio Combining（MRC）, Zero Forcing（ZF） and Minimum Mean Square Error（MMSE） detectors. This design saves the hardware implementation of the receiver and simplifies the software control modules. Simulation results show the algorithm can achieve better performance than the conventional MRC, ZF and MMSE detectors.