摘要
随机接入是LTE-A系统一个最基本的功能,它使终端与网络建立连接成为可能。在LTE-A系统中,随机接入过程是用户设备(UE)与网络端之间建立无线专有链路的首要过程。从LTE-A系统协议入手对竞争性随机接入过程进行了深入分析和讲述,并给出了测试用例相关模块的TD-LTE-A仪表侧的实现过程,之后通过TTCN-3构造测试例来实现竞争随机接入过程,在TTworkbench平台下进行测试,最后对测试结果分析,有效验证了随机接入过程实现的协议一致性。
Random access is a basic function in LTE-A system,it makes it possible to establish connection between terminals and network.In the LTE-A system,random access process is the primary process for user equipment（ UE） to build proprietary link with network.The paper provides in-depth analysis on the process of competing random access from LTE-A system agreement,and gives the implementation of related modules on TD-LTE-A test instrument side,constructing TTCN-3 test cases to achieve the contention based random access procedure. The test under TTworkbench platform and the test results analysis effectively verify the consistency of the random access procedure protocol implemented.
出处
《无线电通信技术》
2016年第3期98-101,共4页
Radio Communications Technology
基金
国家科技重大专项基金项目(2011ZX03001-003-01
2012ZX03001024)
