發(fā)布時(shí)間：2018-01-25 23:25

  本文關(guān)鍵詞： TD-SCDMA 數(shù)據(jù)鏈路層 RLC Femtocell　出處：《華南理工大學(xué)》2013年碩士論文　論文類型：學(xué)位論文

【摘要】：TD-SCDMA是第三代移動(dòng)通訊系統(tǒng)的三大通訊制式之一,是中國擁有自主知識(shí)產(chǎn)權(quán)的3G標(biāo)準(zhǔn)。雖然該標(biāo)準(zhǔn)制定較晚,然而卻用有大量的技術(shù)后發(fā)優(yōu)勢。在國家的大力支持推動(dòng)下,TD-SCDMA由國內(nèi)最大的通信運(yùn)營商中國移動(dòng)運(yùn)營推廣,具有十分巨大的發(fā)展?jié)摿?也受到國內(nèi)外眾多研究人員、通訊設(shè)備公司的密切關(guān)注。目前,國內(nèi)的第三代通訊大規(guī)模商用已經(jīng)成熟,各大城市也已經(jīng)實(shí)現(xiàn)大面積網(wǎng)絡(luò)覆蓋。然而,隨著用戶增長,在用戶密集型的室內(nèi)場所,可能會(huì)出現(xiàn)覆蓋質(zhì)量無法滿足用戶需求的情況。Femto是使用于室內(nèi)的小型基站系統(tǒng),擁有結(jié)構(gòu)簡單、部署方便等優(yōu)勢,被認(rèn)為是解決室內(nèi)信號(hào)覆蓋難題的優(yōu)秀解決方案。講Femto技術(shù)應(yīng)用到當(dāng)前的TD-SCDMA網(wǎng)絡(luò),是當(dāng)下的熱點(diǎn)問題。 本文整個(gè)課題依附于合作公司的TD-SCDMA家庭級(jí)Femto基站上層協(xié)議軟件實(shí)現(xiàn)項(xiàng)目,屬于實(shí)際工程應(yīng)用研究的一部分。通過對(duì)數(shù)據(jù)鏈路層的整體架構(gòu)設(shè)計(jì)和RLC子系統(tǒng)軟件實(shí)現(xiàn)兩方面的工作,對(duì)TD-SCDMA通信制式進(jìn)行更加深入的研究。本課題需要對(duì)TD-SCDMA空中接口的高層協(xié)議進(jìn)行分析,了解其中業(yè)務(wù)層的資源控制(RRC)模塊,數(shù)據(jù)鏈路層的整體架構(gòu)設(shè)計(jì)及實(shí)現(xiàn),和與物理適配層的接口參數(shù)等等內(nèi)容。在后期工作中,我們根據(jù)協(xié)議的規(guī)定和實(shí)際需求的篩選,實(shí)現(xiàn)了RLC子系統(tǒng)的協(xié)議棧軟件,是整個(gè)課題的重點(diǎn)所在。 本篇論文對(duì)TD-SCDMA家庭級(jí)Femto的數(shù)據(jù)鏈路層整體進(jìn)行了架構(gòu)設(shè)計(jì)分析,并且完成了對(duì)RLC子系統(tǒng)的軟件開發(fā),測試聯(lián)調(diào)等工作。其中包括確立RLC子系統(tǒng)的需求,研究開發(fā)RLC子系統(tǒng)三種模式的基本傳輸與控制功能,與上下層接口的數(shù)據(jù)結(jié)構(gòu)體設(shè)計(jì),配置參數(shù)意義的確立等等工作內(nèi)容。另外,項(xiàng)目人員權(quán)衡了實(shí)現(xiàn)難度與實(shí)際需求,放棄了部分功能的實(shí)現(xiàn)(如數(shù)據(jù)加密解密),簡化了協(xié)議。經(jīng)過測試,完成后的RLC子系統(tǒng)軟件三種模式的數(shù)據(jù)傳輸及控制功能已經(jīng)完全滿足實(shí)際需求,在后續(xù)的聯(lián)調(diào)中也實(shí)現(xiàn)了所有預(yù)定功能,達(dá)到了課題研究的預(yù)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.
【學(xué)位授予單位】：華南理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：TN929.5

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本文編號(hào)：1463992