载波聚合下高级长期演进终端移动性测试

Testing on the user mobility in LTE-A system with carrier aggregation

为了验证载波聚合环境下高级长期演进(LTE-A)终端的移动性管理性能,对LTE-A空中接口无线资源控制层的相关协议进行了研究。在分析多载波切换、多载波测量等新增移动性管理机制的基础上,通过讨论检验各项新增特性的测试需求与测试项目,提出终端测试系统的一种设计方案。该方案采用"主控制器+多系统模拟器"的硬件结构,由TTCN-3(Testing and Test Control Notation-version 3)脚本文件定义测试执行的流程。测试的具体方法借助实例得以说明。

In order to verify the mobility management mechanisms for LTE-A terminals in carrier aggregation environment, a study is carried out on the radio resource control layer in the LTE-A air interface. Based on a detailed analysis on the new mobility management schemes such as multi-carrier handover and multi-carrier measurement, test requirements and test items for verifi- cation of these new characteristics are discussed. Then, a terminal test system, which adopts the hardware structure of ＂main controller q- multi-system simulators＂ and executes the test behavior described by TTCN-3 script files, is proposed. Finally, test process is illustrated with an exam- ple so as to provide a reference for LTE-A terminal testing in R＆D and production process.