【摘要】：伴隨著移動(dòng)互聯(lián)網(wǎng)的快速發(fā)展，高速率無線數(shù)據(jù)業(yè)務(wù)的需求日益增多。為進(jìn)一步發(fā)展移動(dòng)通信網(wǎng)絡(luò)，3GPP分別對(duì)無線接入網(wǎng)與核心網(wǎng)開展了LTE和SAE兩大技術(shù)的標(biāo)準(zhǔn)化研究工作。LTE主要是研究無線接入網(wǎng)的發(fā)展方向和關(guān)鍵技術(shù)，而SAE則是研究核心網(wǎng)整體架構(gòu)的演進(jìn)。LTE/SAE技術(shù)提升了無線網(wǎng)絡(luò)的性能，實(shí)現(xiàn)核心網(wǎng)的全I(xiàn)P化，扁平化的網(wǎng)絡(luò)架構(gòu)使得網(wǎng)元數(shù)量有所減少。核心網(wǎng)的MME是處理信令的重要網(wǎng)元，其S1-MME接口是E-UTRAN與EPC之間控制面的重要通信接口，使用S1AP協(xié)議進(jìn)行信令消息的傳遞。論文主要從商用設(shè)備原型機(jī)的需求出發(fā)，對(duì)核心網(wǎng)側(cè)的S1-MME接口實(shí)現(xiàn)方案進(jìn)行分析設(shè)計(jì)，重點(diǎn)關(guān)注S1AP協(xié)議功能的實(shí)現(xiàn)。 本文首先分析了LTE網(wǎng)絡(luò)的架構(gòu)、MME的功能、SCTP協(xié)議、S1AP協(xié)議等，討論了S1-MME接口協(xié)議棧的工作原理。在分析協(xié)議棧的基礎(chǔ)之上，提出S1-MME接口的架構(gòu)方案以及相應(yīng)功能在接口模塊內(nèi)的實(shí)現(xiàn)方式，并且結(jié)合MME的硬件和軟件架構(gòu)，，討論了具體的軟件實(shí)現(xiàn)方法。最后通過功能測試對(duì)實(shí)現(xiàn)方案的可行性進(jìn)行驗(yàn)證。 根據(jù)信令消息處理方式的不同，論文提出了信令分散式處理和信令集中式處理兩種實(shí)現(xiàn)方案。通過對(duì)比和分析，選擇了信令集中式處理方案作為S1-MME接口的實(shí)現(xiàn)架構(gòu)。該方案將接口上所收到的信令消息，重新封裝為統(tǒng)一格式的內(nèi)部消息，放入消息隊(duì)列中等候信令模塊的處理。S1-MME接口模塊可以分為SCTP子模塊和S1AP子模塊兩個(gè)部分，文中針對(duì)這兩個(gè)子模塊在軟件上的實(shí)現(xiàn)進(jìn)行了深入的討論。在論文的最后，根據(jù)LTE的基本信令流程，設(shè)計(jì)了一系列用于S1-MME接口功能測試的測試用例，并且對(duì)收集的測試數(shù)據(jù)進(jìn)行詳細(xì)的分析。根據(jù)測試結(jié)果，說明論文提出的實(shí)現(xiàn)方案是可行的。本論文所做的S1-MME接口軟件開發(fā)工作，具有重要的實(shí)際應(yīng)用價(jià)值。
[Abstract]:With the rapid development of mobile internet, the demand of high-rate wireless data service is increasing day by day. In order to further develop the mobile communication network, 3GPP has carried out the standardization research of LTE and SAE for the wireless access network and the core network, respectively. LTE mainly studies the development direction and the key technology of the wireless access network. SAE is to study the evolution of the core network architecture. LTE/SAE technology improves the performance of wireless network, realizes the core network IP, and the flat network structure reduces the number of network elements. The MME of the core network is an important network element for handling signaling, and its S1-MME interface is an important communication interface between E-UTRAN and EPC. The S1AP protocol is used to transmit the signaling message. Based on the requirements of commercial equipment prototype, this paper analyzes and designs the implementation scheme of S1-MME interface on the core network side, focusing on the realization of S1AP protocol. Firstly, this paper analyzes the architecture of LTE network, the function of MME, SCTP protocol, S1AP protocol and so on, and discusses the working principle of S1-MME interface protocol stack. Based on the analysis of the protocol stack, the architecture of the S1-MME interface and the implementation of the corresponding functions in the interface module are put forward. Combined with the hardware and software architecture of MME, the specific software implementation method is discussed. Finally, the feasibility of the implementation scheme is verified by functional test. According to the difference of signaling message processing methods, this paper proposes two schemes of signaling decentralized processing and signaling centralized processing. Through comparison and analysis, the signaling centralized processing scheme is chosen as the implementation framework of S1-MME interface. In this scheme, the signaling message received on the interface is re-encapsulated into a unified internal message, and the message queue is put into the message queue to wait for the processing of the signaling module. The S1-MME interface module can be divided into two parts: the SCTP sub-module and the S1AP sub-module. In this paper, the software implementation of these two submodules is discussed in depth. At the end of the paper, according to the basic signaling flow of LTE, a series of test cases for S1-MME interface function testing are designed, and the collected test data are analyzed in detail. According to the test results, it is proved that the proposed scheme is feasible. The development of S1-MME interface software in this paper has important practical application value.
【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】：2014
【分類號(hào)】：TN929.5

【參考文獻(xiàn)】

相關(guān)期刊論文 前8條

1 張同須;;LTE現(xiàn)狀及未來發(fā)展綜述[J];電信工程技術(shù)與標(biāo)準(zhǔn)化;2010年11期

2 姜慶民;吳寧;閆申友;;網(wǎng)絡(luò)分析軟件Tcpdump的研究[J];電腦學(xué)習(xí);2007年02期

3 李艷;張治中;;LTE網(wǎng)絡(luò)S1AP監(jiān)測方案的研究與實(shí)現(xiàn)[J];電信科學(xué);2013年01期

4 何玉申;宮芳;;下一代無線移動(dòng)通信LTE及LTE-Advanced的研究[J];信息技術(shù);2010年11期

5 張新華;何永前;;軟件測試方法概述[J];科技視界;2012年04期

6 李山松;;利用Wireshark軟件進(jìn)行信令分析[J];計(jì)算機(jī)與網(wǎng)絡(luò);2013年20期

7 衛(wèi)亮;;基于ATCA通信軟件系統(tǒng)實(shí)施方案的研究[J];微型電腦應(yīng)用;2011年04期

8 趙慧玲;吳廣穎;梅承力;;移動(dòng)核心網(wǎng)絡(luò)技術(shù)發(fā)展探討[J];移動(dòng)通信;2010年07期

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