Research On NGN NI Key Technology And Application

With many years of construction and development, the competition structure of telecom operators have come into being especially in the fixed network market. The market competition situation is becoming more and more clear, it has been entered the times of excelsior. At present, the fixed network operators focus on customers'requirements, service profit ability and network efficiency instead of product itself. By providing abundant individuation services, the fixed network operators are exerting themselves to increase APRU & customers'loyalty so as to retain customers. Along with the combining of NGN and Network intelligence, the innovation effectively satisfies the operators'requirements in the fields of network construction, evolvement, service deploitation and so on. It not only improves PSTN service abilities, but also accords with long term transition trend from PSTN to NGN or 3G.NGN NI successfully separates the service attribution from the local exchange, by using of layer's reconstruction & the entire network database centralizition. Which not only solves the problem that fixed telecom network is unable to spread service for its end users, but also make it possible to spread IN service to the entire network. Also, it improves the capability to support new service business for fixed network and establishes the foundation of enriching service categories. Some individuation service which is difficult to implement in the past can be open to any customer now expediently and neatly, further more customer can keep their original number and don't need dial any access code, which extremely expand the customer scope of using new services.Shanghai Bell Alcatel corp. , one of the most main device provider, take charge of implementation of BeiJing CNC NGN NI project. As one of technicians, the author attended the whole project implementation including equipment installation, test and application reasearch,NGN NI solution, service construction, communication between equipments and new service applications and so on. At the same time, I also researched and practised some key technical problems during the periond of NGN NI project implementation. Ultimately researches and discussions are accomplished regarding the evolution methods & steps in the convertion process from PSTN to fixed & mobile network.