基于OAI的LTE通信平台用户面时延分析

Delay Analysis for User Space of LTE Platform based on OAI

针对当前流行的OAI(Open Air Interface)LTE软件无线电平台缺少详细的用户面时延测试分析,提出关键模块分离测试方法。首先,从OAI平台通信架构的角度出发,分割软硬件模块并进行逐一研究,分析产生时延的机制;然后,通过平台测试,获得实际情况下的时延数据;最后,对测试数据进行分析,验证所提测试方法的正确性。实验采用的测试平台为OAI,能够为其他SDR LTE平台时延研究提供理论基础和时延测试方法,同时也可为SDR在4G/5G通信系统的应用研究提供不可估量的科研价值。

Due to lack of user-space delay measurement to the popular OAI（OpenAirInterface）, the SDR LTE communication platform, the solution with key-module separation analysis to this problem is proposed. First of all, starting from the angle of OAI platform communication architecture, the hardware and software modules are carved up and analyzed one by one, thus finding the mechanism for producing the time delay. And then via platform test, the delay date under actual circumstance is acguired. Finally the test result is analyzed, and the validity of this approach verified. With OAI as the test platform, the experiment could provide theoretical basis and test methods for delay research of other SDR LTE platform, and thus is of invaluable scientific value for research of SDR application in 4G/5G communication systems.