TD-SCDMA家庭基站数据链路层平台软件设计与实现

发布时间：2018-01-25 23:25

本文关键词： TD-SCDMA 数据链路层 RLC Femtocell　出处：《华南理工大学》2013年硕士论文　论文类型：学位论文

【摘要】：TD-SCDMA是第三代移动通讯系统的三大通讯制式之一,是中国拥有自主知识产权的3G标准。虽然该标准制定较晚,然而却用有大量的技术后发优势。在国家的大力支持推动下,TD-SCDMA由国内最大的通信运营商中国移动运营推广,具有十分巨大的发展潜力,也受到国内外众多研究人员、通讯设备公司的密切关注。目前,国内的第三代通讯大规模商用已经成熟,各大城市也已经实现大面积网络覆盖。然而,随着用户增长,在用户密集型的室内场所,可能会出现覆盖质量无法满足用户需求的情况。Femto是使用于室内的小型基站系统,拥有结构简单、部署方便等优势,被认为是解决室内信号覆盖难题的优秀解决方案。讲Femto技术应用到当前的TD-SCDMA网络,是当下的热点问题。本文整个课题依附于合作公司的TD-SCDMA家庭级Femto基站上层协议软件实现项目,属于实际工程应用研究的一部分。通过对数据链路层的整体架构设计和RLC子系统软件实现两方面的工作,对TD-SCDMA通信制式进行更加深入的研究。本课题需要对TD-SCDMA空中接口的高层协议进行分析,了解其中业务层的资源控制(RRC)模块,数据链路层的整体架构设计及实现,和与物理适配层的接口参数等等内容。在后期工作中,我们根据协议的规定和实际需求的筛选,实现了RLC子系统的协议栈软件,是整个课题的重点所在。本篇论文对TD-SCDMA家庭级Femto的数据链路层整体进行了架构设计分析,并且完成了对RLC子系统的软件开发,测试联调等工作。其中包括确立RLC子系统的需求,研究开发RLC子系统三种模式的基本传输与控制功能,与上下层接口的数据结构体设计,配置参数意义的确立等等工作内容。另外,项目人员权衡了实现难度与实际需求,放弃了部分功能的实现(如数据加密解密),简化了协议。经过测试,完成后的RLC子系统软件三种模式的数据传输及控制功能已经完全满足实际需求,在后续的联调中也实现了所有预定功能,达到了课题研究的预定目的。
[Abstract]:TD-SCDMA is one of the three major communication systems of the third generation mobile communication system, which is the 3G standard of China with independent intellectual property rights. However, with a large number of technological advantages, TD-SCDMA is promoted by China Mobile, the largest telecommunications operator in China, and has great potential for development. At present, the domestic third generation communication large-scale commercial has matured, each big city has already realized the massive area network coverage. As users grow, in user-intensive indoor locations, coverage quality may not meet the user's needs. Femto is a small indoor base station system, with a simple structure. The advantage of easy deployment is considered as an excellent solution to the problem of indoor signal coverage. The application of Femto technology to the current TD-SCDMA network is a hot issue at present. The whole subject of this paper is attached to the TD-SCDMA family level Femto base station upper layer protocol software implementation project. Part of the practical engineering application research. Through the data link layer of the overall architecture design and RLC subsystem software implementation two aspects of the work. The TD-SCDMA communication system is studied more deeply. This topic needs to analyze the high-level protocol of TD-SCDMA air interface. Understand the RRC module of the business layer, the overall architecture design and implementation of the data link layer, and interface parameters with the physical adaptation layer. According to the rules of the protocol and the selection of the actual requirements, we have realized the protocol stack software of the RLC subsystem, which is the focus of the whole project. In this paper, the architecture of the data link layer of TD-SCDMA family level Femto is analyzed, and the software development of RLC subsystem is completed. It includes establishing the requirement of RLC subsystem, researching and developing the basic transmission and control function of three modes of RLC subsystem, and designing the data structure of interface with the upper and lower layers. In addition, the project personnel weigh the difficulty of implementation with the actual requirements, give up the implementation of some functions (such as data encryption and decryption, simplify the protocol. After testing. The data transmission and control functions of the three models of the RLC subsystem software have been fully satisfied with the actual requirements, and all the predefined functions have been realized in the subsequent joint adjustment, which has achieved the predefined purpose of the research on the subject.
【学位授予单位】：华南理工大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TN929.5

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