Framework-based Middle Layer Implementation Technology for 5G Communication Modules for Embedded System Applications

The base station network and terminal of 5G communication are developing rapidly, and the way of applying 5G communication in intelligent embedded terminal has continued to develop from baseband and baseband chip to the form of standalone module with higher integration degree. Compared to the baseband approach of self-designed hardware and software, the 5G module simplifies the design and decouples the system by perfecting the integration of 5G communication functions and providing only serial AT instructions to the caller side. But the module hardware interact with high level application is also hard due to soft function and module instruction could not directly call and execute. AT instructions abstractly define the transmission mode and format of instructions and data in communication in a more concise way, but in the application there are still complex and high- dimensional logic and timing relationships of the instruction execution combination. This article design and propose a middle layer software framework to solve interaction between application and 5G module, and it simply the communication function running for application caller and decouple the hardware module from specification data and protocol. The experiment shows the framework software could efficiently running and improve application communication efficiency to 30%, and compare with construct communication function according to specific application and protocol data, it simply the module embedding and enable module AT instruction to execute fully efficient more 23% to before.