TD-SCDMA集群通信系统会话类业务模型分析

摘要

通过分析会话类业务用户行为、集群系统信道分配方式和业务的容量特性,总结出TD-SCDMA集群系统的会话业务模型.针对坎贝尔算法无法准确地描述不同集群业务对容量需求的缺点,提出了一种改进算法,并应用到TD-SCDMA集群业务模型的分析中,得出了会话业务的容量需求.结合不同区域忙时拥塞率、业务忙时话务量及业务呼损制估算出了TD-SCDMA集群基站载波需求数.这些分析和参数的估计对TD集群的初期建网和系统资源配置提供相应的参考依据.%Through the analysis of conversational service' s user behaviors, channel distribution mode and capacitance properties of trunking system, conversational service model of TD-SCDMA trunking system is summarized. Aiming at the Campbell algorithm's shortcomings that can't inaccurately describe different services and capacity demand, an improved one is presented and used in TD-SCDMA trunking system to count the capacity demand of conversational servers. According to different region' s congestion rate and service' s traffic in busy hour and the characteristic of call lose system, the carrier number in a base station are estimated. These methods and data summarized in this paper can provide some references for the initial stage of network design and resources distribution in TD-SCDMA trunking communication system.