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畢業(yè)論文:移動軟交換網(wǎng)絡(luò)中的sigtran及其實現(xiàn)(已修改)

2025-06-07 04:58 本頁面
 

【正文】 I 畢 業(yè) 設(shè) 計 (論 文) 設(shè)計(論文)題目 :__移動軟交換網(wǎng)絡(luò)中的 SIGTRAN 及其實現(xiàn) __ 單 位(系別): ____通信工程系 ________ 編 號 : ____________ 審定成績 : ____________ II 摘 要 移動通信網(wǎng)絡(luò)正處在由第三代向第四代過渡的關(guān)鍵時期。為了在提供更好的網(wǎng)絡(luò)質(zhì)量和更多的多媒體業(yè)務(wù)的同時降低網(wǎng)絡(luò)建設(shè)的成本,核心網(wǎng)采用 NGN 架構(gòu),即控制與承載相分離的架構(gòu),在與傳統(tǒng) GSM 網(wǎng)絡(luò)完全兼容的情 況下支持 3GPP 規(guī)范的一系列新的業(yè)務(wù)和功能。 考慮未來 GSM 核心軟交換網(wǎng)絡(luò)的持續(xù)演進,中國移動集團公司已經(jīng)在 2G 軟交換核心網(wǎng)內(nèi)組織開展 IP 承載語音的網(wǎng)絡(luò)試點工作,并且逐步將電路域核心網(wǎng)絡(luò)全部演進為 IP 承載。同樣的,信令的傳輸也向著 IP 化演進。 本文的前言部分主要通過對當(dāng)前移動通信, NGN 網(wǎng)絡(luò)和 VOIP 技術(shù)發(fā)展的概況和發(fā)展方向以及本論文討論中心 SIGTRAN 協(xié)議做了詳細的介紹。第二章討論了傳統(tǒng)七號信令結(jié)構(gòu),著重介紹了七號信令的 MTP 三層結(jié)構(gòu),包括每一層的消息,特點以及該層在整個七號信令中的作用。第三章主 要介紹了 SIGTRAN 協(xié)議的概念和作用, SIGTRAN 的分層結(jié)構(gòu)是傳統(tǒng)七號信令 MTP 結(jié)構(gòu)與 IP 網(wǎng)絡(luò)路由傳播結(jié)構(gòu)的融合;本章第二部分著重介紹了 SCTP 層, M3UA層各自的概念,特點及其所實現(xiàn)的重要功能與典型消息。本文的第四章對主要通過利用Wireshark數(shù)據(jù)包分析工具 對現(xiàn)網(wǎng)抓取到的 SIGTRAN 數(shù)據(jù)包進行了詳細的介紹,從而以實際網(wǎng)絡(luò)的真實數(shù)據(jù)應(yīng)證了前面幾個章節(jié)的規(guī)范描述,也加深了對 SCTP 層和 M3UA 層消息結(jié)構(gòu)的理解。了解協(xié)議的這些特點,對于解決移動通信系統(tǒng)基于 IP 網(wǎng)絡(luò)的信令通信中產(chǎn)生的一系列問題,有著非常 重要的意義。 【關(guān)鍵詞】 軟交換 NGN 移動通信 SIGTRAN SCTP M3UA III ABSTRACT The mobile munication work is in the key period from the third to the fourth generation of transition. In order to reduce the cost of building the work to provide better work quality and more multimedia services at the same time, the core work architecture using NGN, the control of phase separation and the bearing structure, support a series of business and function of 3GPP standard new in pletely patible with the traditional GSM work scenarios. Considering the continued evolution of GSM core soft switching work future, China Mobile group has been in 2G software switch core work anizations in the IP bearer work pilot speech, and gradually the circuit domain core work evolution for all IP bearing. Similarly, signaling transmission to IP evolution. The preface of this article based on the current situation and development direction of mobile munication, NGN work and VOIP technology development center and SIGTRAN protocol are discussed in this paper in detail. The second chapter discusses traditional No. seven signaling structure, emphatically introduces the signaling system seven MTP three layer structure, including every layer of news, features and the layer in the No. seven signaling role. The third chapter mainly introduces the concept and function of SIGTRAN protocol, the hierarchical structure of SIGTRAN is the fusion of traditional No. seven signaling MTP structure and IP work routing munication structure。 the second part of this chapter focuses on the SCTP layer, M3UA layer of the concept, characteristics and the implementation of the important function and typical news. The fourth chapter of this paper mainly through the analysis of SIGTRAN data packet capture tools on the work packets are introduced in detail by using the Wireshark software tool, and using the real data of actual work should permit the front several chapters of the specification, but also deepen the understanding of SCTP layer and M3UA layer message structure. These characteristics to understand the protocol, a mobile munication system to solve a series of problems signaling munication based on IP bus, has a very important significance. 【 key words】 software switch NGN Mobile munication SIGTRAN SCTP M3UA 目 錄 第一章 前言 ........................................................................................................................................ 1 IV 第一節(jié) 移動通信的發(fā)展與網(wǎng)絡(luò)現(xiàn)狀 .......................................................................................... 1 一、軟交換的網(wǎng)絡(luò)結(jié)構(gòu) .............................................................................................................. 1 二、下一代網(wǎng) 絡(luò) NGN 的發(fā)展 ................................................................................................... 3 第二節(jié) INTERNET 的發(fā)展與 VOIP 技術(shù) ................................................................................. 4 一、 INTERNET 的發(fā)展與 VOIP 技術(shù) ...................................................................................... 4 二、 VOIP 技術(shù) ........................................................................................................................... 5 第三節(jié) 信令傳輸系統(tǒng)( SIGTRAN)概述 ................................................................................ 7 第四節(jié) 前言小結(jié) .......................................................................................................................... 7 第二章 七號信令協(xié)議 ...................................................................................................................... 8 第一節(jié) 七號信令的功能實現(xiàn)模塊 .............................................................................................. 8 第二 節(jié) 消息傳遞部分( MTP) .................................................................................................. 9 一、第一級( MTP1) ............................................................................................................ 10 二、第二級( MTP2) ............................................................................................................ 10 三、第三級( MTP3) ............................................................................................................ 11 第三節(jié) 本章小結(jié) ........................................................................................................................ 12 第三章 SIGTRAN 協(xié)議棧 ............................................................................................................ 13 第一節(jié) 概述 ................................................................................................................................ 13 一、 SIGTRAN 協(xié)議棧結(jié)構(gòu)介紹 ............................................................................................. 13 二、 SIGTRAN 應(yīng)用模型 ......................................................................................................... 15 第二節(jié) SCTP .........
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