The Building Project & Implementation Of No.7 Signaling Network Management System

No.7 Signaling Network an important component of modern telecom network, and it is one of the essential supporting networks for development of telecom network toward comprehension, digitalization, intelligence, wideband and personalization. Now, China Mobile has established No.7 Signaling Network at three levels of HSTP, LSTP and SP, through support of which, more and more telecom business can be transferred and controlled. Therefore, operation quality of No.7 Signaling Network will directly impact working stability and economic performance of various kinds of business networks, and any minor signaling concern of No.7 Signaling Network may lead to failure of the network in a wide scope. Under such circumstances, the management system of No.7 Signaling Network comes into being as means for central control and management of No.7 Signaling Network. The monitoring system of the management system of No.7 Signaling Network is independent from telecom network and on-net equipment (STP equipment, exchanger, and signaling transfer equipment, etc.), and it adopts modes of high resistance bridging or interface terminal connection resultant from inner side of exchanger to carry out analysis and treatment with original signaling data collected directly on the No. 7 Signaling Link so as to provide real-time dynamic monitoring and control on No.7 Signaling Network. No.7 Signaling Network provides extremely rich information resources of various kinds. With adoption of original data collected through monitoring system, central maintenance can be carried out on the transfer link and signaling equipment of No.7 Signaling Network, e.g. protocol-based business analysis, load analysis, call completing rate, and call lost analysis, etc. It can transfer message into call detail record (CDR) before analysis and treatment of CDR, realize business analysis of network, and carry out evaluation and monitoring on operation performance of No.7 Signaling Network. It has the following functions: statistics of detail indexes for operation of network, trouble shooting and analysis, realization of overall network real-time call and trace, integration of call on each interface of intelligent network, early warning against signaling crisis and hidden defects of entire network, inter-network business, trouble analysis, inter-network service fee settlement, inter-network signaling sheet check, monitoring of inter-network service quality agreement (SQA), and auxiliary decision-making analysis system designed for areas with deadly insufficient configuration of network optimization analysts. It can fully monitor No.7 Signaling Network, improve the operator's network quality, service quality, strengthen the competitive power, and provide the most convincing and valuable reference data and information on checking operation indexes after expansion of network capacity and investment activities such as increase and decrease of relay and network equipment. With the three stage signaling network being completed, the signaling mode has already been changed from channel associated signaling into No. 7 Signaling, and the later is being gradually transited from direct connection mode into collimated connection mode as the main. Maintenance and management of No. 7 Signaling and its network have also experienced a process from simple into complicated and from dispersal into centralization, and from non-real-time, into real-time operation. For the earlier maintenance of No. 7 Signaling, on the one hand, it uses personalized limited information from exchanger or signaling transfer equipment (e.g. general periodic statistic report, warning report, coarse, simple and non-purposed signaling flow process and decoding, etc.) to achieve rough, local and incomplete understanding of local operation conditions of No. 7 Signaling, and on the other hand, it relies on monitoring instruments of No. 7 Signaling to monitor, and analyze local troubles, and carry out analysis on such indexes as trouble positioning, qualification, local signaling flow, and load. Therefore, the network monitoring system of No. 7 signalingmanagement system can be used to complete monitoring and maintenance of the signaling network equipment so as to carry out central management of the signaling network equipment and performance, which constitute the complete No. 7 Signaling Network Management System together with the Monitoring System. At first, this thesis describes basic concept and fundamentals of telecom management network; Then, in consideration of present situation of No. 7 Signaling Network Management System in China, it carries out deep analysis on existing network monitoring and control system and central control system from which, the following special features of the two systems can be found: ⑴There is strong complementarity in management business between two systems; ⑵There is great repeatability in performance statistics and warning and monitoring features; ⑶There is considerable similarity in requirements for hardware/software system platform; So, it thoroughly demonstrates the feasibility to integrate two system into one. Based on the above analysis, the author of this thesis designs the No. 7 Signaling Network Management System integrating the above two systems. Since the structure of the monitoring system is much larger than that of the network monitoring system, main technical consideration lies in how to incorporate the network management system into the monitoring system. In view of the interface, Since No. 7 Signaling management system needs to be interconnected with local network central control system, distance network management system, toll system and upper level No. 7 Signaling Network Management System, and the local system has interface to interconnect with the network equipment, according to TMN theory, this system realizes Qx and Q3 interface; In view of structure, This system make full use of the extreme similarity of two systems on hardware platform,and it combines and make backup among front-end machine, graphic workstation, and database server with each other so that equipment can play their individual functions and the reliability of the system can be improved; In view of combination of features, Consideration has been made to check whether configuration of exchanger data are correct through call path analysis, and when any problem is found on configuration of the exchanger, correction can be made in time through the network management system to realize the mutual compensation of features of two systems. Simultaneously, the author gives a detail analysis on system performance in two aspects of equipment disposal capacity and storage capacity, including: storage capacity of remote station, comparison between calculation methods of different storages, analysis sheet of different monitoring scale and storage period, and storage capacity of central server, etc. Finally, the author designs and realizes a real-stage auxiliary traffic simulation and analytical system, which provides necessary support on regulation of network structure and configuration as well as flow control, and prevention of link line choking, overload and other adverse phenomenon.