基于MPT-1327的集群系統(tǒng)智能基站的研究與設(shè)計

電子通信論文編號:TX101  字數(shù):33535.頁數(shù):41 

目  錄
1緒論  5
1.1集群的定義   5
1.2集群通信系統(tǒng)簡介  5
1.2.1集群系統(tǒng)的基本特征  5
1.2.2集群系統(tǒng)信道的控制方式  5
1.2.3集群系統(tǒng)信道的配置方式   6
1.3集群通信系統(tǒng)發(fā)展的歷史、現(xiàn)狀及趨勢   7
1.4課題背景及研究意義  8
1.5本課題的主要研究內(nèi)容   10
2智能基站系統(tǒng)結(jié)構(gòu)  11
2.1集群延伸技術(shù)概述  11
2.1.1直放站延伸技術(shù)概述  11
2.1.2集群延伸站技術(shù)概述  11
2.2智能基站的組成  12
2.2.1概述   12
2.2.2組成 13
2.3智能基站的特點  15
2.4智能基站的功能  15
2.4.1本地呼叫管理功能  15
2.4.2中繼功能   15
2.4.3其它功能   15
2.5系統(tǒng)的主要技術(shù)指標  16
3信令的選擇   18
3.1通信信令簡介   18
3.1.1信令的分類  18
3.1.2數(shù)字信令   18
3.1.3集群通信系統(tǒng)的信令技術(shù)   19
3.2內(nèi)部傳輸信令 19
3.3 MPT-1327信令   20
3.3.1 MPT-1327信令組成   20
3.3.2 MPT 1327信令的系統(tǒng)功能  21
3.3.3 MPT 1327信令的用戶功能   22
3.3.4 MPT-1327信令的類別  22
3.3.5倍道規(guī)則  23
3.3.6隨機接續(xù)協(xié)議  3
4系統(tǒng)總控軟件的設(shè)計與實現(xiàn)   24
4.1總控軟件的設(shè)計原則和設(shè)計步驟  24
4.2總控軟件的流程   25
4.3總控軟件的設(shè)計與實現(xiàn)  25
4.3.1完整呼叫過程描述  25
4.3.2具體軟件模塊和流程圖   27
5中繼信道控制單元的設(shè)計  31
5.1中繼信道控制單元的功能  31
5.2中繼信道控制單元的硬件結(jié)構(gòu)設(shè)計  31
5.2.1主要芯片簡介  31
5.2.2控制單元的組成  32
5.3中繼信道控制單元的軟件設(shè)計  33
5.3.1軟件的功能   33
5.3.2跨站呼叫處理  33
5.3.3無線用戶漫游登記   36
5.3.4軟件的結(jié)構(gòu)  38
結(jié)論  40
參考文獻   41

摘要
智能基站的獨特之處在于它增加了與主集群系統(tǒng)(簡稱主系統(tǒng))通信的中繼信道控制單元，當智能基站不與外界通信時，基站可以獨立地完成本系統(tǒng)覆蓋區(qū)域內(nèi)的調(diào)度通信；當需要擴大主系統(tǒng)覆蓋區(qū)域時，可通過工作在主系統(tǒng)頻段內(nèi)的中繼信道控制單元將智能基站作為主系統(tǒng)的用戶終端接入主系統(tǒng)，并通過主系統(tǒng)進入其它通信網(wǎng)絡(luò)，這種配置方式，可以在不對主系統(tǒng)做任何修改的情況下，擴大主系統(tǒng)的服務(wù)覆蓋區(qū)。
智能基站的突出特點是既可以獨立運行，又可以作為主集群系統(tǒng)(其它集群系統(tǒng)，區(qū)別于智能基站)的終端進入主集群系統(tǒng)。由于它的特殊性，我們必須設(shè)計新的軟件來控制系統(tǒng)的運行。中繼信道控制單元是MPT-1327集群智能基站的重要組成部分，智能基站的這種獨特的功能就是通過它來實現(xiàn)的。我們在設(shè)計中繼信道控制單元的過程中，綜合考慮了現(xiàn)有集群系統(tǒng)的結(jié)構(gòu)特點，使其在實現(xiàn)上盡可能地利用現(xiàn)有的設(shè)備或與現(xiàn)有設(shè)備兼容，以降低成本和實現(xiàn)的難度。本論文首先分析了現(xiàn)有集群系統(tǒng)的結(jié)構(gòu)，在此基礎(chǔ)上給出了一種可以實現(xiàn)的智能基站設(shè)計的總體方案，并對它的原理和功能特點做了總體上的描述。信令是一個移動通信系統(tǒng)很重要的部分，本文介紹了智能基站所采用的信令MPT-1327信令，它是集群系統(tǒng)之間通信的保證。而后，本文著重介紹了智能基站中央控制軟件的設(shè)計實現(xiàn)過程以及中繼信道控制單元的軟硬件設(shè)計方法。在系統(tǒng)中控軟件的設(shè)計與實現(xiàn)一章中，先描繪了中控軟件的總流程圖，然后在原有集群系統(tǒng)中控軟件的基礎(chǔ)上設(shè)計了智能基站特有的一些程序模塊，并給出了每一個具體模塊的流程圖。在中繼信道控制單元的設(shè)計一章中，先對硬件進行了一設(shè)計，給出了硬件結(jié)構(gòu)和所使用的芯片，在此硬件基礎(chǔ)上對如何設(shè)計滿足協(xié)議的控制軟件做了較為詳細的介紹。
關(guān)鍵詞：集群通信；智能基站；MPT-1327信令；中控軟件；中繼信道控制單元

Abstract
Its difference from other systems is that it has channel relay unit which can communicate with the main franking system. When the intelligent base station does not communicate with other systems, it can deal with communications and dispatching in its signal covering area. Through the channel relay unit the intelligent base station can be connected into the main system as a user and then connect with other networks through the main system. This configuration needn't modify the main system when extending the service area.
The extrude characteristics of intelligent base station are its independent working and being a user for main franking system (common franking system, difference from Intelligent base station) when intelligent base station System communicate with other main franking system. Because of its particularity, we must design new software to make it working. The channel relay unit is the important part of the intelligent base station, without it the intelligent base station won't have the special function. In the course of designing the channel relay unit, we use existing instruments or make it to be compatible with existing instruments as possible in order to reduce cost and difficulty. Based on the analysis to the architecture of current franking system, a general design is presented in this dissertation. The principle and function features are also described in it. Signaling is a very import part of a telecommunication system, this article show the MPT1327 signaling intelligent base station uses. Following, mostly we subscribe the process of its main control software and the design method of the channel relay unit software and hardware. In the chapter of the main control software designing, firstly we lay out the flow chart of intelligent base station, then we designed some particular modules owned by the intelligent base station on the base of conunon franking system, also we play out the flow chart for every module. In the chapter of the channel relay unit designing, we introduce how to design the hardware of the channel relay unit also detailedly introduces the hardware structure and chips and how to design control software satisfied with transmission protocol.
Keywords：trunking communication； intelligent base station；MPT 1327 signaling；control software；channel relay unit