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首页> 外文会议>Pacific Telecommunications Council's annual conference;PTC2000 >Intelligent Network Evolution within GSM Networks
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Intelligent Network Evolution within GSM Networks

机译：GSM网络中的智能网络演进

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Intelligent Network (IN) technology has been available in GSM networks for several years. Initially theprotocols developed for wireline networks have been reused, e.g. the ETSI CS-1 protocol. Proprietaryadditions to handle specifics for GSM networks have sometimes been introduced in order to better meet theneeds of mobile networks.One aspect that has contributed to the success of GSM is the roaming between countries, i.e. betweennetworks belonging to different operators. Up till now this has allowed origination of calls and reception ofterminating calls when travelling, without any special registration with the visited operators. A basic feature sethas been available; this has however not included any IN based services.Over the last few years the use of IN technology has become more widespread. A major driving force isPrepaid services, which today are used by significant numbers of subscribers in most networks. The higherpenetration of IN has triggered the development of a dedicated IN protocol, CAMEL, for GSM networks. In thesame way as the standardized MAP (Mobile Application Protocol) is part of the Memorandum ofUnderstanding (MoU) between GSM operators, and thus the foundation for the roaming, CAMEL is becominga part of the MoU. It allows access to the subscriber’s set of IN services even when he/she is roaming.One type of service, where the benefits can be easily seen, is Virtual Private Network. The introduction ofCAMEL will allow a user to access the company short number dialing plan even if travelling abroad. Anotherearly CAMEL based service is Operator Controlled Number Translation. The service will allow the globalusage of e.g. short access numbers for Voice Mail. An example, today the Swedish operator Telia uses 133for access to Voice Mail. Within Sweden no other digits are required for a user to get access to the mailbox.When roaming, a full-length international number has to be dialed plus the user’s own CLI plus a four digitpassword. With the introduction of CAMEL the code to dial will be 133 even when roaming.It is expected that over the next few years the vast majority of GSM operators will introduce CAMEL in theirnetworks. And, as CAMEL is fully standardized, there will be strong competition between the IN equipmentand service vendors.CAMEL will also play an important role in the 3rd generation cellular systems currently being standardized inEurope. But more important is the evolution of the Intelligent Network concepts being processed within the 3rdGeneration Partnership, 3GPP. The current plans are to include an Open Service Architecture, and a VirtualHome Environment in the specifications for the 3rd generation networks.The Open Service Architecture will introduce for example standardized Application Programming Interfaces,APIs, towards Application Servers hosting the actual applications. It is expected that this will create a marketfor application developers, thus opening up for a multitude of services, sometimes even tailored for aparticular subscriber.With the Virtual Home Environment a user can access and use his/her personal set of applications even whenroaming.At the same time as the wideband access of 3rd generation systems will open for a range of new applications,the Open Service Architecture and the Virtual Home Environment will contribute to a wider range ofapplications, and increased accessibility and usability. It is expected, that the network and service usage willincrease, thus creating new revenue streams for the operators, and service providers.
机译：智能网络（IN）技术已在GSM网络中使用了数年。最初，为有线网络开发的协议已被重复使用，例如ETSI CS-1协议。为了更好地满足移动网络的需求，有时引入了专用于处理GSM网络的附加信息。促成GSM成功的一个方面是国家之间（即，属于不同运营商的网络之间的）漫游。迄今为止，这允许在旅行时发起呼叫和接收终止呼叫，而无需向拜访的运营商进行任何特殊注册。基本功能集已经可用。但是，这还不包括任何基于IN的服务。在过去的几年中，IN技术的使用变得越来越广泛。预付费服务是主要的推动力，如今，大多数网络中的大量订户正在使用预付费服务。 IN的更高渗透率引发了针对GSM网络的专用IN协议CAMEL的开发。就像标准化MAP（移动应用协议）是GSM运营商之间的谅解备忘录（MoU）的一部分一样，因此漫游的基础，CAMEL成为MoU的一部分。即使用户正在漫游，它也可以访问订户的IN服务。虚拟专用网是一种很容易看到好处的服务。 CAMEL的引入将使用户即使出国旅行也可以访问公司的短号码拨号计划。另一个基于CAMEL的早期服务是运营商控制的号码转换。该服务将允许在全球范围内使用语音邮件的短访问号码。例如，今天瑞典的运营商Telia使用133来访问语音邮件。在瑞典境内，用户不需要其他数字即可访问邮箱。漫游时，必须拨打一个完整的国际长途号，以及用户自己的CLI和一个四位数的密码。随着CAMEL的引入，即使在漫游时，拨号码也将达到133。预计在未来几年中，绝大多数GSM运营商将在其网络中引入CAME​​L。而且，由于CAMEL已完全标准化，因此IN设备和服务供应商之间将存在激烈的竞争。CAMEL在欧洲目前正在标准化的第三代蜂窝系统中也将发挥重要作用。但是更重要的是在第三代合作伙伴3GPP中处理的智能网络概念的发展。当前的计划是在第三代网络的规范中包括一个开放服务体系结构和一个虚拟家庭环境。开放服务体系结构将向托管实际应用程序的应用服务器引入例如标准化的应用程序编程接口API。预计这将为应用程序开发人员创造一个市场，从而为多种服务打开，有时甚至为特定用户量身定制。借助虚拟家庭环境，用户即使在漫游时也可以访问和使用其个人应用程序集。在第三代系统的宽带访问将面向一系列新应用的同时，开放服务体系结构和虚拟家庭环境将为更广泛的应用做出贡献，并提高可访问性和可用性。预计网络和服务的使用将增加，从而为运营商和服务提供商创造新的收入流。

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