软交换技术在GSM通信系统中的应用研究
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摘要
从设备厂家的角度,按照先同厂家后异厂家的顺序完成网络的IP化改造;从网络层次的角度,按照省内、省际的顺序完成网络的IP化改造。
由于端局的IP化,只需在有信令互联的端局之间,配置BICC信令和路由数据,省去了局点之间的TDM电路设置。建议在端局数量超过20个,采用CMN进行转接,以减少每个端局的数据配置复杂程度,以及维护工作量。
考虑到各省公司端局数量的差异,某些端局较多的省份,建议采用省内CMN汇接省内长途;省际CMN汇接国内长途和国际长途。
对于广东移动,在改造初期,由于VoIP局点较少,各VoIP局点之间可以采用网状直连的方式,后期陆续大量的软交换端局改造为VoIP局,建设省内CMN将势在必行。
本文首先介绍了移动软交换技术的概念及各发展阶段的组网,陈述了中国移动长途软交换网络工程的现状及组网方式。通过对中国移动长途软交换组网方式的分析,探讨了在该组网方式中可能存在的问题,提出了两种优化方案。本期IP承载语音端局改造按照广东移动的要求,采用升级现网软交换设备的方案。目前陕西移动已经完成了第一阶段的试点测试(咸阳、渭南),并已经带大量商业用户稳定运行。
广东版本进行了两次升级:从2007年5月到6月底,作为配合测试局点,完成广东移动VoIP测试任务,版本从R3C01B056升级到R5C01B038;2007年9月中下旬,根据集团要求,加载正式业务,版本从R5C01B038升级到R5C10B019。第一次升级后完成集团VoIP测试的三个阶段测试任务,由于广东移动的华为设备仅仅作为配合测试局点,为了减少对现网的影响,使用临时基站搭建测试环境,现网业务仍然使用137号段MSRN;第二次升级是为了满足集团和广东移动对所有参与测试的VoIP局点必须承载3000ERL话务的要求,替换现网MSRN为1344,同时使用中国移动VoIP目标版本。
对中国移动集团公司规划广东交换网络IP化试点项目,涉及汕尾本地网IP化端局升级改造任务。在6月份的改造中,已经实现了VoIP测试业务承载,本次改造重点在于使用特定的VoIP MSC ID1344承载业务,在改造之前,需要进行版本升级。
Softswitch technology is the first major issue is the selection of faculty members. Never in the history of this college has a student been permitted to interview, examine the credentials of, or even meet prospective professors. All hiring is done by a joint administrative?faculty committee, often made up of people who will not even have extensive dealings with the individuals after they begin teaching. Those who have the most at stake and whose lives and academic careers will be governed by the professors - the students themselves - never even meet the new teachers until the first class meeting.
Finally, the area of scheduling is of vital interest to students. The hours at which classes are offered affect the workings of our daily lives. Many of us must juggle work and class schedules, but often administrators ignore such problems when they schedule classes. Schedules must be convenient and flexible so that all students have equal opportunities to take the most popular classes and those which are most essential to their majors.
This paper introduces the concept of mobile softswitch technology, networking and various stages of development, statements by China Mobile long-distance soft-switched network project status and Networking Method. By China Mobile Networking Method for analysis of long-distance soft-switching discussed the problems that may exist Networking Method proposed two kinds of optimization solutions.
The system is mainly based on China Mobile's long-distance soft-switching network, a project may be a single node failure, put forward two kinds of optimization solutions. In the long-distance tandem softswitch network and the TDM networks direct traffic between the relay, making soft-switched network traffic overflow occurs, or soft-switching single-node failure, routing traffic through the setting of the dredge from the TDM network; in the provinces node in the establishment of two soft-switching nodes, so that truly realized a two-node backup route. Both options have their advantages and disadvantages of network construction in different periods, using different scenarios.
China Mobile softswitch through the construction of long distance, while digging a network of networks is the potential to reduce investment; the other hand, has accumulated a soft switch maintenance and network design optimization experience, for the upcoming 3G fierce competition has a very important value.
Put you throughyou still stuck around and stayed by my sidewhat really hurt me is i broke your heartbaby you a good and i had no righti really wanna make things rightcuz without you in my life .
由于端局的IP化,只需在有信令互联的端局之间,配置BICC信令和路由数据,省去了局点之间的TDM电路设置。建议在端局数量超过20个,采用CMN进行转接,以减少每个端局的数据配置复杂程度,以及维护工作量。
考虑到各省公司端局数量的差异,某些端局较多的省份,建议采用省内CMN汇接省内长途;省际CMN汇接国内长途和国际长途。
对于广东移动,在改造初期,由于VoIP局点较少,各VoIP局点之间可以采用网状直连的方式,后期陆续大量的软交换端局改造为VoIP局,建设省内CMN将势在必行。
本文首先介绍了移动软交换技术的概念及各发展阶段的组网,陈述了中国移动长途软交换网络工程的现状及组网方式。通过对中国移动长途软交换组网方式的分析,探讨了在该组网方式中可能存在的问题,提出了两种优化方案。本期IP承载语音端局改造按照广东移动的要求,采用升级现网软交换设备的方案。目前陕西移动已经完成了第一阶段的试点测试(咸阳、渭南),并已经带大量商业用户稳定运行。
广东版本进行了两次升级:从2007年5月到6月底,作为配合测试局点,完成广东移动VoIP测试任务,版本从R3C01B056升级到R5C01B038;2007年9月中下旬,根据集团要求,加载正式业务,版本从R5C01B038升级到R5C10B019。第一次升级后完成集团VoIP测试的三个阶段测试任务,由于广东移动的华为设备仅仅作为配合测试局点,为了减少对现网的影响,使用临时基站搭建测试环境,现网业务仍然使用137号段MSRN;第二次升级是为了满足集团和广东移动对所有参与测试的VoIP局点必须承载3000ERL话务的要求,替换现网MSRN为1344,同时使用中国移动VoIP目标版本。
对中国移动集团公司规划广东交换网络IP化试点项目,涉及汕尾本地网IP化端局升级改造任务。在6月份的改造中,已经实现了VoIP测试业务承载,本次改造重点在于使用特定的VoIP MSC ID1344承载业务,在改造之前,需要进行版本升级。
Softswitch technology is the first major issue is the selection of faculty members. Never in the history of this college has a student been permitted to interview, examine the credentials of, or even meet prospective professors. All hiring is done by a joint administrative?faculty committee, often made up of people who will not even have extensive dealings with the individuals after they begin teaching. Those who have the most at stake and whose lives and academic careers will be governed by the professors - the students themselves - never even meet the new teachers until the first class meeting.
Finally, the area of scheduling is of vital interest to students. The hours at which classes are offered affect the workings of our daily lives. Many of us must juggle work and class schedules, but often administrators ignore such problems when they schedule classes. Schedules must be convenient and flexible so that all students have equal opportunities to take the most popular classes and those which are most essential to their majors.
This paper introduces the concept of mobile softswitch technology, networking and various stages of development, statements by China Mobile long-distance soft-switched network project status and Networking Method. By China Mobile Networking Method for analysis of long-distance soft-switching discussed the problems that may exist Networking Method proposed two kinds of optimization solutions.
The system is mainly based on China Mobile's long-distance soft-switching network, a project may be a single node failure, put forward two kinds of optimization solutions. In the long-distance tandem softswitch network and the TDM networks direct traffic between the relay, making soft-switched network traffic overflow occurs, or soft-switching single-node failure, routing traffic through the setting of the dredge from the TDM network; in the provinces node in the establishment of two soft-switching nodes, so that truly realized a two-node backup route. Both options have their advantages and disadvantages of network construction in different periods, using different scenarios.
China Mobile softswitch through the construction of long distance, while digging a network of networks is the potential to reduce investment; the other hand, has accumulated a soft switch maintenance and network design optimization experience, for the upcoming 3G fierce competition has a very important value.
Put you throughyou still stuck around and stayed by my sidewhat really hurt me is i broke your heartbaby you a good and i had no righti really wanna make things rightcuz without you in my life .
引文
[1]罗国庆等,软交换工程实现,北京,人民邮电出版社,2004年3月
[2]上海伟功网络通信技术有限公司,软交换应用技术,北京,电子工业出版社,2004年11月
[3]中国移动通信集团公司,3G技术知识培训手册,北京,2005年9月
[4]中华人民共和国信息产业部,900/1800M TDMA数字蜂窝移动通信网No.7 ISUP信令技术要求,2000年
[5]ETSI , Digital cellular telecommunications system (Phase 2+);Mobile Application Part(MAP) specification(GSM 09.02 version 7.1.0 Release 1998),1998年
[6]华为技术有限公司,WCDMA系统基本原理,2005年
[7]华为技术有限公司,UMG8900通用媒体网关电子手册(V200R003,GSM,V2.30),2004年
[8]软交换设备总体技术要求.中华人民共和国信息产业部,2003
[9] ITU-T Recommedation H.248. Media Gateway Control Protocol. 2000.6
[10]赵慧玲,叶华等.以软交换为核心的下一代网络技术[M].北京:人民邮电出版社,2002
[11] H.248媒体网关控制协议中国电信集团. 2003.12
[12]邢燕霞,赵慧玲.基于IMS的网络融合研究进展.中国电信网站,2004
[13]叶华,强磊.软交换网络发展趋势的研究.“十一五”规划征文选登2006年P96-99
[14]洪钧,李爱军,李明基.基于软交换的多媒体应用方案[J].中兴通讯技术, 2002,8(2): 1-5.
[15]刘继明.软交换技术[J].中兴通讯技术, 2001,7(2): 10-15.
[16]倪明,朱越,雷海强.软交换在PSTN网络演进中的应用策略[J].中兴通讯技术, 2002,8(5): 27-30.
[17]赵慧玲. NGN和软交换[J].中兴通讯技术, 2005,11(3): 30-33.
[18]雷震洲.关注NGN的两大走向:网络融合和机对机应用[J].中兴通讯技术, 2005,11(4): 6-10.
[2]上海伟功网络通信技术有限公司,软交换应用技术,北京,电子工业出版社,2004年11月
[3]中国移动通信集团公司,3G技术知识培训手册,北京,2005年9月
[4]中华人民共和国信息产业部,900/1800M TDMA数字蜂窝移动通信网No.7 ISUP信令技术要求,2000年
[5]ETSI , Digital cellular telecommunications system (Phase 2+);Mobile Application Part(MAP) specification(GSM 09.02 version 7.1.0 Release 1998),1998年
[6]华为技术有限公司,WCDMA系统基本原理,2005年
[7]华为技术有限公司,UMG8900通用媒体网关电子手册(V200R003,GSM,V2.30),2004年
[8]软交换设备总体技术要求.中华人民共和国信息产业部,2003
[9] ITU-T Recommedation H.248. Media Gateway Control Protocol. 2000.6
[10]赵慧玲,叶华等.以软交换为核心的下一代网络技术[M].北京:人民邮电出版社,2002
[11] H.248媒体网关控制协议中国电信集团. 2003.12
[12]邢燕霞,赵慧玲.基于IMS的网络融合研究进展.中国电信网站,2004
[13]叶华,强磊.软交换网络发展趋势的研究.“十一五”规划征文选登2006年P96-99
[14]洪钧,李爱军,李明基.基于软交换的多媒体应用方案[J].中兴通讯技术, 2002,8(2): 1-5.
[15]刘继明.软交换技术[J].中兴通讯技术, 2001,7(2): 10-15.
[16]倪明,朱越,雷海强.软交换在PSTN网络演进中的应用策略[J].中兴通讯技术, 2002,8(5): 27-30.
[17]赵慧玲. NGN和软交换[J].中兴通讯技术, 2005,11(3): 30-33.
[18]雷震洲.关注NGN的两大走向:网络融合和机对机应用[J].中兴通讯技术, 2005,11(4): 6-10.