TD-LTE基站基带芯片物理层控制系统设计

摘要

The development of TD-LTE base station baseband chip has been toward multicore trend, as a hardware carrier TD-LTE physical layer, how to efficiently use the baseband chip performance and baseband chip control system design and development has become an urgent problem at the same time gradually increase chip performance. To solve this problem, an efficient physical layer control system is designed. First, based on the 3GPP physical layer specification, the system state machine is designed. According on the DSP core interaction mechanism, the baseband data stream is designed, and then the multi-task scheduling control system is designed. The simulation results show that the baseband master control system, the DSP processing system and the on-chip resources have efficient task flow, the physical layer function of the baseband chip is realized, and has a high efficiency of multi task processing.%TD-LTE基站基带芯片的发展已走向多核化趋势，作为TD-LTE物理层的硬件载体，在芯片性能逐渐提升的同时，如何高效利用基带芯片性能以及基带芯片控制系统的设计与开发成为目前急需解决的难题。针对此问题，设计了一种高效的物理层控制系统。首先基于3GPP物理层规范，设计了系统状态机，根据DSP核交互机制设计了基带数据流，在此基础上设计了基带芯片的多任务调度控制系统。最后根据RTL仿真验证和基带分析仪器验证，基带主控系统、DSP处理系统和片上资源有着高效的任务流水，总体实现了基带芯片的物理层功能，且有着较高的多任务处理效率。