PHS roaming signaling protocol architecture toward global mobilitynetwork

The network for supporting the global personal communication is called the global mobility network (GLOMONET), where global mobility is guaranteed by coordination between intelligent networks (INs). This paper describes the implementation of a roaming signaling protocol for the personal handy-phone system (PHS) GLOMONET, clarifying the concepts of the PHS architecture regarding the GLOMONET. The PHS is a more economical personal communication system than existing cellular systems, by introducing the concept that the PHS service is provided by the most effective use of the existing ISDN and IN functions, where the majority of network functions to provide ISDN services are commonly used for functions for PHS service provision. The PHS mobility function realized by the IN guarantees flexible and effective roaming service provision for the globalization of future personal communication. The proposed PHS signaling protocol architecture is based on the intelligent network capability set 2 (IN CS2) defined by the International Telecommunication Union-Telecommunication Standardization Sector (ITU-T) Study Group 11 and a visitor location register (VLR) database scheme with efficient signal transfer in the GLOMONET. The PHS specific roaming signaling protocol is defined by the service-independent IN application protocol (INAP). The proposed PHS concepts and roaming signaling protocol were reflected to the national telecommunications standards in the Telecommunication Technical Committee (TTC) and standards in the PHS-memorandum of understanding (MoU)     

Teletraffic implications of database architectures in mobile andpersonal communications

Intelligent networks (INs) will allow wide area roaming and location of individuals so that true anytime, anywhere, any form communications can take place. Personal communications will put new demands on INs. The architectures of existing INs may need to be modified to accommodate the new capabilities required to support such services. In particular, the databases that put the “intelligence” in IN will have many more demands placed upon them due to the changes in scope and content. We identify some of the teletraffic and architectural issues associated with the support of personal and mobile communications by IN databases. We first provide some context by reviewing IN architecture, personal communications, and the data required to support it. We then look at a pseudoservice example to better understand the implications for query and update traffic that must be handled by the databases. We also identify same of the most important issues that must be addressed by database manufacturers and IN providers to realize the promise of truly transparent personal and terminal mobility     

IN rollout in Europe

The present situation related to intelligent networks (INs) in Europe is described. The projects and experiences of some single operators and main aspects of a joint initiative research activity currently carried out by various European countries (Eurescom) are discussed. In particular, the status of IN in the Italian SIP network, in the United Kingdom BT network, and in the France FT network is reviewed. Particular reference is made to the basic milestones of the IN project, the architectural approach adopted, the services provided, and the planned evolution. The objectives, the tasks, and the activities performed within the European group are also discussed     

Personal communications services through the evolution of fixed andmobile communications and the intelligent network concept

New telecommunications services tend to consider fixed network subscribers' requirements as well as mobile network subscribers' requirements. On one hand, subscribers of fixed networks would like to benefit from the mobility offered in mobile networks. On the other hand, mobile subscribers would like to access to services inherent in fixed networks. Personal communications services (PCS) meet this trend while allowing fixed and mobile convergence. In this environment, the application of intelligent networks (INs) to fixed and mobile networks is very convenient to realize PCS. Thus, the natural advancement of telecommunications systems (fixed and mobile) consists in the definition of new telecommunications architectures which take into account technologies from both fixed and mobile environments. This article studies how the IN is used to support mobility and interworking for PCS. Although mobility management already exists in cellular networks like GSM, it is desirable to use the IN concept to introduce flexibility. In addition, the IN allows the introduction of new supplementary services in PCS. Furthermore, the IN concept can be utilized to provide necessary networking functions for the integration of fixed and mobile networks. This article also highlights the involvement of IN in the definition of the global communications systems such as Telecommunication Information Networking Architecture (TINA), Universal Mobile Telecommunications System (UMTS), and International Mobile Telecommunications in the year 2000 (IMT2000)     

广东省智能网的建设设想

随着社会需求的增加，智能网建设已被提到日程上来。本文根据广东省的实际条件和需求，提出了有关该省智能网建设、智能业务实施的探讨性建议，介绍了首期开放的智能业务的种类和性能，最后就话音平台和智能网间的配合及过渡方案发表了意见。     

The intelligent network in France

The introduction of an intelligent network (IN) architecture in France by France Telecom is described. Two main technical issues of present IN architecture are discussed: the programming interface to be used for service creation and the control-resource interface such as the SSP/SCP interface. The long-term evolution of IN, including the application to networks other than public switched telephone networks (PSTN) and the development of operating systems to handle IN-supported services, is outlined. Major technical problems in implementing a global IN architecture are also discussed     

Integration of intelligent network services into future GSMnetworks

This article introduces various difficulties and issues in the basic scenario of integrating intelligent networks (INs) and the Global System for Mobile Communications (GSM). As an example, implementation of Universal Personal Telecommunications (UPT) is considered. This article does not offer a comprehensive analysis, but rather a tutorial view. The separation of cellular networks and IN is not well suited to provide common mobility-related services. The present signaling systems do not enable transfer of mobility-related parameters, such as the cell identity and international mobile subscriber identity (IMSI). A call connection to the service switching point must be set up every time IN services are used from the GSM network. The same information is stored in several network elements, and service creation and management are complex. With those disabilities in mind, two integration scenarios are introduced and their characteristics are compared. However, the aim is not to give detailed guidance for implementation, but rather to introduce different options and describe their most significant characteristics. It is important to be able to provide mobility-based information directly to the IN. Flexible integration calls for changes both in mobile exchanges and signalling systems. Mobile exchanges will be built with additional IN functionality and, in fact, future signalling systems will better carry mobility-related information. Mobility can be implemented with a rather small investment, provided that there are digital exchanges and transmission systems and the basic infrastructure has already been built. The required intelligence can be offered by using the existing Public Land Mobile Network (PLMN) or IN architecture     

Intelligent network overview

The International Consultative Committee for Telephone and Telegraph (CCITT) program of work that addresses global international intelligent network (IN) standards and a framework for the standardized evolution of IN are described. Bell Communication Research's (Bellcore's) IN work, referred to as the Advanced Intelligent Network (AIN), is also discussed in relation to the CCITT IN Recommendations. In addition, IN activities of the European Telecommunications Standards Institute (ETSI) and the Telecommunications Technology Committee (TTC) of Japan are described     

TMN and new network architectures

The impact of telecommunication management network (TMN) concepts when applied to the management of newly emerging network architectures is illustrated using the example of intelligent networks (INs). An in-depth comparison of TMN and IN architectural aspects leads to a number of conclusions showing a significant degree of commonality between the two networks. The IN is analyzed as a telecommunication network architecture aimed at reducing service creation and modification development costs and delays. This approach unifies the processing techniques for a number of highly diversified network services. Similarly, the TMN, which covers a wide range of management resources organized into a unique architecture, tends to unify operation, administration, and maintenance (OAM) for complex and evolving communication networks, despite their highly diverse network components     

Pathways for telecommunications: a European outlook

The factors driving the transformation of telecommunication systems are used as the basis for describing major trends in network architecture and access structures, intelligent networks (INs), mobile and personal communications, and management functions. The factors include network digitization, the widespread use of optical fibers, and the increase in the range and demand for high-speed services. The interplay between technologies, markets, and standards is analyzed, and the need to identify consistent and harmonized patterns of development for network architectures and services is considered. In particular, telecommunications products, services, and regulations in Europe are discussed     

软交换INAP业务适配系统的设计实现

为了保护运营商在智能网(IN)方面的前期大量投资,软交换系统必须能够与原有智能网进行互通,并继承智能网原有的业务,智能网应用规程(INAP)业务适配系统即应此而生。INAP业务适配系统与呼叫控制系统、事务处理能力应用部分(TCAP)协议栈应用程序通信,完成INAP和私有协议之间的转换和映射。INAP业务适配系统由核心(CORE)、远程业务接入管理(RSAM)和TCAP接口管理(TIM)3个模块构成,其工作原理、总体结构、初始化、消息处理以及模块设计和实现均有说明。     

IN rollout in Japan

The evolution of the intelligent network (IN) services and architecture of the Nippon Telegraph and Telephone Public Corporation (NTT) is discussed. The hierarchical structure of network functions, machine independent service execution environment, advanced service creation environment and service-independent platform of the IN architecture are reviewed. Advanced IN's impact and the technical issues that remain unsolved are described     

Consideration on common channel signaling evolution for globalintelligent networking

With the evolution of digital networks and intelligent network (IN) capabilities, the role of common channel signaling has become more and more important. In respect to IN, common channel signaling would play a significant role not only inside one network but also over multiple networks. International credit card validation and internetworking for digital mobile services represented by GSM (Global System for Mobile Communications) are examples which utilize internetwork signaling capabilities in the framework of the initial-phase IN. Enhanced service providers (ESPs) may access the public network through the common channel signaling interface to make use of the IN capabilities, as is being discussed in terms of ONA (open network architecture) or ONP (open network provision). This paper first identifies various scenarios where internetwork signaling interactions would take place in the framework of IN in the forthcoming era. It then identifies various requirements to cope with these scenarios. It finally discusses the directions for evolution of common channel signaling toward global intelligent networking     

智能网的管理及其与TMN的关系

智能网是８０年代中期出现的一种新型网络，因其能够快速灵活的在网络中引入新业务而得以迅速发展，并成为未来电信网的方向。电网管理网作为现代电信网的有效管理手段，必须对智能网的发展产生巨大影响，而智能网的发展也将使ＴＭＮ的管理功能更加完善。本文将首先介绍智能网的管理要求，然后从网络管理的角度探讨其与ＴＭＮ的相互关系。     

Putting thought into networks

Intelligent networks (INs) are changing the culture and structure of the telecoms industry, and will change the way that customers think about telephone services. Yet they are doing all this largely unnoticed. The changes are gradual, the name 'intelligent network' means different things to different people, and the only glamorous technologies involved are something of a distraction. INs are a natural technological progression. They are an example of how innovation in services can result from the novel application of conventional technology. INs exploit the improvement in performance and reliability of data processing systems, which means that ordinary computer equipment can be used to control telephone calls in real time. Here, the author explains how intelligent networks are changing the way telecoms services work     

The Deutsche Bundespost Telekom implements IN

The introduction of intelligent network (IN) services into the existing telecommunications network in Germany is discussed. The configuration of the services offered in the IN, the parameters for the call routing programs available during the operational trial, and call charging models are described. It is shown that the major aspects of the evolution of IN are economic concerns and international standards     

对基于虚拟机机制的智能网SCF程序结构的研究

本文提出了一种基于虚拟机机制的智能网业务控制功能（ Ｓ Ｃ Ｆ）的程序结构。基于这种结构可以实现 Ｓ Ｃ Ｆ功能与智能业务的无关,即智能业务的引入与修改不需要重新编译 Ｓ Ｃ Ｆ软件。通过把一个智能呼叫与一个虚拟机相映射,做到了对智能业务的逻辑描述与具体实现的统一。本文还详细讨论了智能呼叫在 Ｓ Ｃ Ｆ 中的状态转移和所设计的虚拟机的内部结构,以及基于虚拟机加解释器的工作原理和优点     

International standards for intelligent networks

An overview of the current state of intelligent network (IN) standards as described on CCITT's capability set 1 (CS1) is presented. The key to the success of CS1 lies in it being simple enough to be realizable with limited impact on existing software technology and network signaling, rich enough to provide a nontrivial, commercially deployable, initial set of services, and open-ended for growth, both in terms of service richness and penetration, and new capabilities enabled by new technologies. The objectives of IN and CS1, the main characteristics of CS1, and the framework and directions for IN evolution are discussed     

Optimizing the server utilization in intelligent broadband networks

Intelligent network (IN) architectures are investigated globally as potential candidates for the rapid introduction of advanced multimedia services. The IN concept is based on the introduction of intelligent servers in the network, able to handle complex service requests by cooperating with the signalling system of the network. The design and implementation of the physical entities participating in an IN session is a critical issue as it defines the system performance. In this paper we propose a methodology for modelling the physical and functional entities which is used to capture the performance of IN‐based configurations. We put our emphasis on the processing speed required for the execution of the IN processes in the servers and we present results with reference to the system performance and the mapping of functions to physical entities. Copyright © 2000 John Wiley & Sons, Ltd.