TD-LTE系统下的DRX过程的改进与实现

摘要

With the enriching of mobile terminal business as well as the popularization of intelligent terminal,battery capacity of mobile terminal not only attracts so much attention in the field,but also encounters severe challenges.In the protocol of LTE system,in order to get the further more variety of business support and large amounts of data transmission,the DRX mechanism was taken as an important method to be introduced.Not only the different principles and mechanisms of DRX in different states including idle state and connection state were described in detail,but also the implementation process and the corresponding algorithm were proposed,Based on these,the algorithm of DRX in the connection state was optimized,which avoided invalid configuration resulting in the problem of increased signaling cost.Finally,complete implementation of the mechanism of DRX in different mobile business was given according to the different business characteristic,so that it improves the terminal consumption and signaling cost performance.%随着移动终端业务的丰富以及智能手机的普及,移动终端电池的续航能力在成为业界关注热点的同时也遇到了严峻的挑战.在LTE系统无线高层协议中,为进一步支持多种业务和大量数据的传输,DRX(非连续接收)机制作为降低终端功耗的重要方法被引入.本文不仅详细描述了DRX在空闲状态和连接状态下的不同原理和机制,而且给出了相应的实现流程与算法,并在此基础上优化了连接态下的DRX算法,从而避免了因无效配置造成的信令开销增大等问题.最后根据不同业务的特性,给出了DRX机制在不同移动业务中的实现,从而更好地改善了终端能耗和信令开销等性能.