TD-SCDMA系统中减少码碎片的方法

Methods of reducing code fragments in TD-SCDMA systems

TD-SCDMA系统中减少码碎片的方法,通过码碎片整理算法和资源整合算法,用于码资源受限系统中实现减少码碎片,提高高速业务接入成功率的基于离散度的资源整合(DBRI)算法。其用OPNET软件搭建仿真平台,比较无资源整合和有资源整合对系统性能的影响。仿真结果表明,在系统负载较大时,所用的DBRI算法能够在保证资源利用率的前提下提高高速用户的接入成功率。

On the basis of the methods on reducing code fragments,i.e.code fragments cleaning up and resource integration algorithm,in TD-SCDMA systems,a Fast Dynamic Channel Allocation realization——Discreteness Based Resource Integration（DBRI） algorithm is discussed,aiming at reducing OVSF code fragments and increasing the high-speed traffic admission success rate in code resource limited systems.A simulation platform using OPNET software is established to validate the performance of the algorithm,which is compared to the case that no resource integration is used.The simulation result shows that DBRI algorithm can increase the high-speed traffic admission success rate without decreasing the resource utilization rate when the system load is large.