LTE-V2X协议栈开发及通信测试

目前推出的V2X通信技术相关标准中存在技术要求细节不够明确等问题, 导致车联网通信终端产品存在差异, 通信协议栈之间不能实现全面互联互通. 针对这一问题, 通过分析LTE-V2X协议栈的性能要求及总体分层, 提出了LTE-V2X协议栈的软硬件解决方案并完善协议栈各层设计细节, 完成消息数据填充与编解码、构建各层数据帧并设计逐层封装机制. 在此基础上, 基于真实道路场景对协议栈进行通信性能测试, 测试结果显示该协议栈满足设计要求, 符合协议栈顶层应用规范.

Development and Communication Testing of LTE-V2X Protocol Stack

The current standards in vehicle-to-everything (V2X) communication technology still have some problems, such as unclear technical requirement details. Consequently, the terminal products of V2X communication are different from each other, and the communication protocol stacks cannot be fully interconnected. To solve this problem, we analyze the performance requirements and overall layering status of an LTE-V2X protocol stack, propose a software and hardware solution for it, and improve the design details of each layer. Then, we complete the filling, encoding, and decoding of the message data, construct the data frames of each layer, and design a layer-by-layer encapsulation mechanism. On this basis, the communication performance of the protocol stack is tested in a real road scene, and the test results show that the protocol stack meets the design requirements and the top application specification on the protocol stack.