A packet domain service signal processing system and the corresponding method

Abstract

The invention relates to a telecom service network technology based on broadband packet transmission and discloses a PS domain service signal processing system and a method thereof, thus ensuring that an enhanced IMS system can realize PSTN and ISDN service and becomes a general telecom service network which can provide fixed service and mobile service. On the basis of IMS of 3GPP R5 / R6 standard definition, AGCF applied to shielding the difference of an access customer is added into the PS domain service signal processing system and the method thereof; a PSTN customer and an ISDN customer are first accessed to AGF, then to the IMS through the agent function of the AGCF and the AGCF is also applied to access management and control towards the AGF; the IMS domain is also added with AS to control and process PSTN and ISDN service. The PSTN and ISDN service control can be centralized for processing in the AS, or basic and supplementary service control can be processed in the AGCF and expanded value added service control can be processed in the AS.

Description

technical field [0001] The present invention relates to the telecommunication service network technology based on broadband packet transmission, in particular to the telecommunication service network technology based on broadband packet transmission capable of handling public switched telephone network and said integrated service digital network services and providing fixed or mobile services for end users. Background technique [0002] Integrated Services Digital Network (Integrated Services Digital Network, referred to as "ISDN") originated in 1967 and is a communication network developed on the basis of Integrated Digital Network (Integrated Digital Network, referred to as "IDN"). ISDN supports end-to-end digital Connect, support various communication services such as telephone, provide standard user-network interface to facilitate access of various user terminals. [0003] The Public Switched Telephone Network ("PSTN" for short) is a network of public communication compa...

AI Technical Summary

Problems solved by technology

[0013] 3. In addition to implementing PSTN and ISDN services, the softswitch also needs to provide the service switch point (ServiceSwitch Point, referred to as "SSP") function to realize the triggering of intelligent services. Since there is no unified triggering mechanism, there are conflicts between the two types of services

[0014] 4. PSTN and ISDN services are dispersed in each call processing node of NGN, and it is difficult for each network node to cooperate to complete the service

When business conflict occurs, there is no clear business arbitration point

[0015] 5. PSTN and ISDN services are dispersed in each call processing node of NGN. When promoting a unified service brand, each service needs to be implemented repeatedly in all soft switches of the network, and the cost of service promotion is high.

[0017] 7. User data is scattered in each call processing node of NGN, and user service access is limited to its access point. Even if the user terminal is allowed to move, it is difficult to obtain the same service as before, which also limits the unified promotion of service brands

[0021] Although IMS provides a mechanism for separating service management, session control, and bearer access, because the IMS standard was originally designed for 3G mobile systems, it does not support the access management and control of PSTN users and ISDN users, so PSTN users and ISDN users cannot access through the visited domain nodes defined by the IMS standard, so that PSTN users and ISDN users can only obtain PSTN and ISDN business services through other network devices

These other network devices either have all or part of the shortcomings of fixed network NGN, or even if these technical shortcomings are solved, they still belong to different networks from the IMS domain, and the network construction is repeated.

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