Research Of Multi-standard Radio Interface Information Collection System Based On Embedded System

At present, the rapid development of wireless communication technologies are changing the way that people live, and the social needs are constantly stimulating the generation of new technologies. Multi-standard wireless communication systems provide quality of services for users, meanwhile bring the problem of the diversity and complexity of the radio interface information. Drive-test systems are used to obtain network information. At present, most of drive-test software must be equipped with test terminals, laptops and GPS systems, and only support a single standard network that the test terminals support. Therefore, the integration and portability of the drive-test system need to be improved.This thesis focuses on the design and realization of embedded multi-standard radio interface information collection system, designed to take advantage of the highly integrated feature, automation feature and portability feature of the embedded system. The drive-test system can work without other external devices or manual, and it can automatic operate and record automatically multi-standard wireless network information. It is useful to improve the efficiency of the information collection work.The completed work in this thesis:According to the system requirements analysis and based on the control of timing relationships, to develop system communication protocol between the modules. Complete the design and realization of the GPS module and file management module:GPS module follows the NMEA-0183protocol standards, and is responsible for collecting important information such as latitude and longitude、UTC time. Meanwhile, the module provides the system clock reference, and ensure the system of internal control timing operation orderly. File management module provides information storage service for the system output. The system complete file created, document created and bytes written by this module in the SD card. The module is the bridge of information collection and data storage. Meanwhile, the file management module is the output window of the collecting information, and the output data can be used to verify the function of the system.Practical results meet the expected design and proposal. The design is reasonable and effective, and the modules are stable and reliable. The system can record and store the information of multi-standard system radio interface information automatically. The system meets the needs of wireless network test.