TETRA数字集群系统逻辑链路控制协议层基本链路的研究与开发
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摘要
TETRA数字集群系统提供安全、可靠以及高效率的语音和数据通信,在全球许多国家得到了广泛的应用。目前,我国所使用的TETRA数字集群设备全部依赖国外进口,不但价格昂贵,而且给国家安全埋下了隐患。因此,开发我国自主知识产权的TETRA数字集群系统具有重要意义。
逻辑链路控制(LLC)协议层是TETRA数字集群系统协议栈的重要组成部分之一,负责移动台和基站之间点对点的逻辑链路控制,提供基本链路和高级链路两种不同的业务。基本链路传送TETRA数字集群系统的基本信令消息,高级链路能够提供高等级业务,尤其适合分组数据传输。因此,LLC协议层基本链路的开发是TETRA数字集群系统协议栈开发的关键。
本文综述了TETRA数字集群系统技术特点及其在国内外的发展状况,在分析TETRA数字集群空中接口协议栈的基础上,对LLC协议层基本链路与MLE交换控制消息和用户数据、逻辑链路处理、数据发送顺序设定、重传、差错检测以及接收数据确认功能进行了深入地研究。本论文在分析比较目前协议开发语言、开发方法的基础上,提出了本次协议栈软件开发的语言、工具以及方法。基于TelelogicTau G2集成开发环境,使用UML、SDL以及C语言实现了LLC协议层基本链路确认数据传输和不确认数据传输业务功能,并对LLC协议层基本链路进行了协议一致性测试,测试结果与(《ETS 300 392-2 TETRA V+D Part 2:Air Interface》协议描述一致,完全满足设计需求。
TETRA digital trunked systems provide secure, reliable and efficient voice and data communications. They are being widely used in many countries around the world. So far, the TETRA digital trunked systems used in China are all made by foreign manufactures. They are too expensive and threatening our National Security. Therefore, it is very important to develop TETRA digital trunked system with our own independent intellectual property right.
Logic Link Control (LLC) protocol layer is one of the most important part of TETRA digital trunked system protocol stack, and it shall handle the point-to-point logical links between the Mobile Station and the Base Station. It provides two different services called Basic Link and Advanced Link. Basic Link is used to transmit basic signalling messages in TETRA digital trunked system. Advanced Link offers a high grade of service, especially for packet data transfer. Therefore, the development of LLC protocol layer for Basic Link is the key of the development of protocol stack in TETRA digital trunked system.
The thesis summarizes the technology characteristics of TETRA digital trunked system and its developing situation at home and abroad. Based on analysing TETRA digital trunked air interface protocol stack, the functions of Basic Link in LLC protocol layer, such as exchanging of controlling messages and user data with MLE, handling of logical links, scheduling of data transmission, re-transmissions, error measurement and acknowledgement of received data are researched. The developing languages, tools and method are given after analyzing and comparing several methods. Based on Telelogic Tau G2 integrated development environment, the acknowledged data transmission and unacknowledged data transmission services of Basic Link in LLC protocol layer are implemented by using UML, SDL and C languages, and the protocol conformance tests are made. The test results are in accordance with "ETS 300 392-2 TETRA V+D Part 2: Air Interface " and satisfy the design requirement completely.
逻辑链路控制(LLC)协议层是TETRA数字集群系统协议栈的重要组成部分之一,负责移动台和基站之间点对点的逻辑链路控制,提供基本链路和高级链路两种不同的业务。基本链路传送TETRA数字集群系统的基本信令消息,高级链路能够提供高等级业务,尤其适合分组数据传输。因此,LLC协议层基本链路的开发是TETRA数字集群系统协议栈开发的关键。
本文综述了TETRA数字集群系统技术特点及其在国内外的发展状况,在分析TETRA数字集群空中接口协议栈的基础上,对LLC协议层基本链路与MLE交换控制消息和用户数据、逻辑链路处理、数据发送顺序设定、重传、差错检测以及接收数据确认功能进行了深入地研究。本论文在分析比较目前协议开发语言、开发方法的基础上,提出了本次协议栈软件开发的语言、工具以及方法。基于TelelogicTau G2集成开发环境,使用UML、SDL以及C语言实现了LLC协议层基本链路确认数据传输和不确认数据传输业务功能,并对LLC协议层基本链路进行了协议一致性测试,测试结果与(《ETS 300 392-2 TETRA V+D Part 2:Air Interface》协议描述一致,完全满足设计需求。
TETRA digital trunked systems provide secure, reliable and efficient voice and data communications. They are being widely used in many countries around the world. So far, the TETRA digital trunked systems used in China are all made by foreign manufactures. They are too expensive and threatening our National Security. Therefore, it is very important to develop TETRA digital trunked system with our own independent intellectual property right.
Logic Link Control (LLC) protocol layer is one of the most important part of TETRA digital trunked system protocol stack, and it shall handle the point-to-point logical links between the Mobile Station and the Base Station. It provides two different services called Basic Link and Advanced Link. Basic Link is used to transmit basic signalling messages in TETRA digital trunked system. Advanced Link offers a high grade of service, especially for packet data transfer. Therefore, the development of LLC protocol layer for Basic Link is the key of the development of protocol stack in TETRA digital trunked system.
The thesis summarizes the technology characteristics of TETRA digital trunked system and its developing situation at home and abroad. Based on analysing TETRA digital trunked air interface protocol stack, the functions of Basic Link in LLC protocol layer, such as exchanging of controlling messages and user data with MLE, handling of logical links, scheduling of data transmission, re-transmissions, error measurement and acknowledgement of received data are researched. The developing languages, tools and method are given after analyzing and comparing several methods. Based on Telelogic Tau G2 integrated development environment, the acknowledged data transmission and unacknowledged data transmission services of Basic Link in LLC protocol layer are implemented by using UML, SDL and C languages, and the protocol conformance tests are made. The test results are in accordance with "ETS 300 392-2 TETRA V+D Part 2: Air Interface " and satisfy the design requirement completely.
引文
[1]郑祖辉,陆锦华,郑岚等.数字集群移动通信系统.第二版.北京.电子工业出版社.2005
[2]TETRA及其现状(www.softblog.cn/blogread_11231.html)
[3]Richard Dewey,Remi Sfez,Eric Pequet,Pierre Makowski,Serge Raes.DESIGN OF THE TETRA MOBILE RADIO AIR INTERFACE PROTOCOL.Mobile and Personal Communications.13-15 December 1993
[4]摩托罗拉专业无线通信部.TETRA:新一代全球数字集群通信标准.无线电工程.2001.7.11
[5]F.GutiCrrez,A.Valdovinos.Performance of Channel Coding Techniques for the Digital Mobile Radio System TETRA(Trans European Trunked Radio).IEEE 47th Vehicular Technology Conference.1997
[6]中华人民共和国电子行业标准.SJ/T11228-2000.数字集群移动通信系统体制
[7]孙昕.从国际集群通信研讨会看TETRA数字集群的发展.移动通信.2002.11.10-12
[8]赵荣黎.专用移动通信的技术进步与应用前景.移动通信.2001.7.9-10
[9]费小益.集群系统与有线电话网的接口.移动通信.1992.4
[10]黄杰,施万青,张力军.TETRA数字业务及应用.移动通信.2001.4.32-35
[11]孙昕,黄清,王淑范,武玉福.几种数字集群系统标准的分析与比较.仪器仪表标准化与计量.2001.3.18
[12]陆锦华.TETRA数字集群通信--我国推荐的数字集群移动通信系统体制A 简介.电子标准化与质量.2001.5.28
[13]胡翔.TETRA数字集群系统在水利通信专网中的应用.移动通信.2002.9.78-80
[14]郑祖辉.数字集群通信专网和共网.电力通信
[15]摩托罗拉公司推出新一代TETRA基站(http://www.motorola.com.cn/news/2006/07/04.asp)
[16]便携式TB3c具有更大的覆盖范围.EADS TETRA时事快报.2005.2.7
[17]ETSI.300.392-1.1998.Trans-European Trunked Radio(TETRA);Voice plus Data (V+D);Part 1:General network design
[18]Xu wenlong,Xiang Haige,Yang Hongjie.TETRA protocol interfaces features and potential applications in Railway.0-7803-7490-8/02 2002 IEEE
[19]ETSI.300.392-2.2001.Terrestrial Trunked Radio(TETRA);Voice plus Data (V+D);Part 2:Air Interface(AI)
[20]统一建模语言UML概述(blog.csdn.net/wuyanhuiyishi/archive/2005/06/24/402308.aspx)
[21]李小文.TD-SCDMA第三代移动通信系统、信令及实现.北京.人民邮电出版社.2003
[22]Telelogic公司.Telelogic Tau G2.5Documentation 软件帮助文档
[23]尚利宏,熊运鸿.一种基于UML的嵌入式实时应用软件开发环境.电子质 量.2004.25-30
[24]陈平,褚华.软件设计师教程.北京.清华出版社.2004
[25]叶乃文.面向对象程序设计.北京.清华大学出版社.2007
[26]李海.基于实时UML的雷达软件设计.现代雷达.2006.8.57
[27]段红光,罗一静.TSM系统中高层软件的测试方法.天津通信技术.2004.9.27-28
[28]TD-SCDMA终端GMM实体一致性测试研究.通信世界.2006.3.6.10
[29]TD-SCDMA移动终端协议一致性测试研究(http://forum.eepw.com.cn/thread/10197/1)
[30]The UML 2.0 Testing Profile and its Relation to TTCN-3(www.swe.informatik.uni-goettingen.de/publications/IS_ZD_JG_AR/TestCorn2003_UTP_Final.pdf)
[2]TETRA及其现状(www.softblog.cn/blogread_11231.html)
[3]Richard Dewey,Remi Sfez,Eric Pequet,Pierre Makowski,Serge Raes.DESIGN OF THE TETRA MOBILE RADIO AIR INTERFACE PROTOCOL.Mobile and Personal Communications.13-15 December 1993
[4]摩托罗拉专业无线通信部.TETRA:新一代全球数字集群通信标准.无线电工程.2001.7.11
[5]F.GutiCrrez,A.Valdovinos.Performance of Channel Coding Techniques for the Digital Mobile Radio System TETRA(Trans European Trunked Radio).IEEE 47th Vehicular Technology Conference.1997
[6]中华人民共和国电子行业标准.SJ/T11228-2000.数字集群移动通信系统体制
[7]孙昕.从国际集群通信研讨会看TETRA数字集群的发展.移动通信.2002.11.10-12
[8]赵荣黎.专用移动通信的技术进步与应用前景.移动通信.2001.7.9-10
[9]费小益.集群系统与有线电话网的接口.移动通信.1992.4
[10]黄杰,施万青,张力军.TETRA数字业务及应用.移动通信.2001.4.32-35
[11]孙昕,黄清,王淑范,武玉福.几种数字集群系统标准的分析与比较.仪器仪表标准化与计量.2001.3.18
[12]陆锦华.TETRA数字集群通信--我国推荐的数字集群移动通信系统体制A 简介.电子标准化与质量.2001.5.28
[13]胡翔.TETRA数字集群系统在水利通信专网中的应用.移动通信.2002.9.78-80
[14]郑祖辉.数字集群通信专网和共网.电力通信
[15]摩托罗拉公司推出新一代TETRA基站(http://www.motorola.com.cn/news/2006/07/04.asp)
[16]便携式TB3c具有更大的覆盖范围.EADS TETRA时事快报.2005.2.7
[17]ETSI.300.392-1.1998.Trans-European Trunked Radio(TETRA);Voice plus Data (V+D);Part 1:General network design
[18]Xu wenlong,Xiang Haige,Yang Hongjie.TETRA protocol interfaces features and potential applications in Railway.0-7803-7490-8/02 2002 IEEE
[19]ETSI.300.392-2.2001.Terrestrial Trunked Radio(TETRA);Voice plus Data (V+D);Part 2:Air Interface(AI)
[20]统一建模语言UML概述(blog.csdn.net/wuyanhuiyishi/archive/2005/06/24/402308.aspx)
[21]李小文.TD-SCDMA第三代移动通信系统、信令及实现.北京.人民邮电出版社.2003
[22]Telelogic公司.Telelogic Tau G2.5Documentation 软件帮助文档
[23]尚利宏,熊运鸿.一种基于UML的嵌入式实时应用软件开发环境.电子质 量.2004.25-30
[24]陈平,褚华.软件设计师教程.北京.清华出版社.2004
[25]叶乃文.面向对象程序设计.北京.清华大学出版社.2007
[26]李海.基于实时UML的雷达软件设计.现代雷达.2006.8.57
[27]段红光,罗一静.TSM系统中高层软件的测试方法.天津通信技术.2004.9.27-28
[28]TD-SCDMA终端GMM实体一致性测试研究.通信世界.2006.3.6.10
[29]TD-SCDMA移动终端协议一致性测试研究(http://forum.eepw.com.cn/thread/10197/1)
[30]The UML 2.0 Testing Profile and its Relation to TTCN-3(www.swe.informatik.uni-goettingen.de/publications/IS_ZD_JG_AR/TestCorn2003_UTP_Final.pdf)