【作者】 田至男；

【导师】 周正；

【作者基本信息】 北京邮电大学 ， 电子与通信工程（专业学位）， 2013， 硕士

【摘要】 LTE是第三代移动通信系统的主流演进技术之一,在LTE系统中定义了TDD (Time Division Duplexing,时分双工)和FDD (Frequency Division Duplexing,频分双工)两种方式,其中采用时分双工的TD-LTE系统是TD-SCDMA系统的后续演进标准。TD-LTE得到了中国政府、运营商和系统设备制造商的高度关注。相信在不久以后,TD-LTE必将在中国进行大规模的商用。作为移动通信的关键环节,TD-LTE终端的性能质量在该技术的商用化进程中起着决定性的作用。TD-LTE作为起步较晚的一种通信技术标准,在其技术的成熟性、产业化进程和商用经验方面无疑还存在欠缺,还需要大量的工作尤其是终端的测试工作以保证其商用的成功。通过开发完整的TD-LTE终端射频一致性测试系统将有助于促进TD-LTE终端测试技术的完善,另外还能够推动国内仪表行业特别是高端通信仪表产业的发展,并有利于TD-LTE产业化的发展。本文在对LTE技术进行详细的研究分析的基础上,根据3GPPTS36.521-1规范着重对TD-LTE终端射频一致性的测试项目进行研究分析,包括了发射机特性测试、接收机特性测试、性能要求测试和信道状态信息报告测试四个方面。然后介绍了自动测试系统的相关概念,并根据3GPP TS36.508附录A对TD-LTE终端射频一致性测试进行了测试环境的设计以及整合,选择合适的测试仪表,完成了自动测试系统中硬件系统的设计与实现。最后根据硬件系统的设计对软件系统的需求作出分析,设计出软件系统的功能模块,包括用户操作界面模块、数据库管理模块、测试例程序模块以及仪表驱动程序模块。硬件系统与软件系统相互配合,即可完成对TD-LTE终端射频一致性的测试,可提高测试的准确性以及效率。更多还原

【Abstract】 LTE is one of the evolving technologies of the third generation mobile communication system, which defines both the TDD (Time Division Duplex) and FDD (Frequency Division Duplexing) mode, and the TD-LTE system is the following evolution of TD-SCDMA system standard. TD-LTE has been highly concerned by the Chinese government, operators and system equipment manufacturers. I believe in the near future, TD-LTE will carry out a large-scale commercial using in China.The performance and quality of mobile communication terminal plays a key role in the process of commercialization of TD-LTE technology. Because TD-LTE is a new communication technology standard, it has a lack in its technical maturity, the process of industrialization and commercial experience undoubtedly, so we require a lot of work especially terminal testing to ensure its commercial success. The development of high quality TD-LTE terminal RF conformance automatic test system will be able to promote the improvement of TD-LTE terminal testing techniques,and contribute to development of domestic instrument industry, especially the high-end communication instrument industry, which is also conducive to the TD-LTE industry development.In this paper, firstly1make an analysis of LTE technology, then according to3GPP TS36.521-1specification I focus on researching and analyzing the TD-LTE terminal RF conformance test projects, which including the transmitter characteristics test, receiver characteristics tests, performance requirements test and the test report of channel state information. And then I introduce the concept of automatic test system, according to the appendix A of3GPP TS36.508,1design and integration the TD-LTE terminal RF conformance test environment and choose the appropriate test instruments, finally I complete designing and implementing the automatic test system hardware system. Finally, according to the hardware system I make an analysis of the need of software system, and design the functional modules of the software system, including the user interface module, database management modules, test cases modules and driver modules of the instrument. Hardware and software system work together to complete TD-LTE terminal RF conformance detection, which can improve the accuracy and efficiency of the detection.更多还原