基于TD-SCDMA集群专网的切换新算法研究

New Algorithm of Handover in Trunking Communication System Based on TD-SCDMA

首先对TD-SCDMA集群通信系统进行了介绍,对TD-SCDMA集群通信的业务特点进行了详细分析,然后从无线资源管理的角度,提出一种适用于TD-SCDMA集群通信中的小区间切换新算法。新算法采用动态调整的方式来改变预留的信道数,最后通过仿真得出新算法在切换中断概率和信道利用率方面均得到改善。

Firstly, the trunking communication system is introduced, and the service features of trunking communication system are analyzed in details. Then a new algorithm is proposed from the point of radio resource management. The proposed algorithm is suitable for TD-SCDMA trunking communication and can dynamically change the number of channel for urgency calling. The simulation results show that both the handover interrupt probability and the channel usage ratio are all improved by using the new algorithm.