System for realizing mobile internetwork number portability service

Abstract

The invention relates to a system for realizing a mobile internetwork number portability service. The system consists of an independent number portability database (SRF-NPDB) which accesses a No.7 signaling network and has an SFR function and a local service management system (LSMS). Global title translation point office data are set in a related mobile switching center to point at the SRF-NPDB; the SRF-NPDB changes and transforms numbers of a number portability user to achieve the aims of addressing and controlling connection; and the LSMS manages a number mapping relation of a local portability user and synchronizes with the SRF-NPDB. The system has the characteristics of: adopting independent network element equipment, setting data only by switching nodes without modifying the conventional signaling transfer point (STP), fairly and independently carrying out the number portability service, avoiding tight coupling with the STP, ensuring quality of communication service, and providing an effective method for independently developing the mobile internetwork number portability service.

Description

technical field [0001] The invention relates to a system for implementing number portability services in a mobile communication network. Specifically, on the premise of not upgrading the existing communication network equipment, an independent number portability database NPDB is introduced to make office data only for relevant mobile switching nodes. Setting, the signaling relay function SRF and the number portability service can be realized conveniently. Background technique [0002] "Number Portability" (Number Portability) service, called NP service, can enable users to continue to use the original communication number without changing the number when the address is moved, the service provider is changed, or the service is changed. The business that countries implement first. [0003] The original number (ISDN number) of the user X (subscriber) who has the number portability service is the user number A allocated by the network operator A. When the user changes operator...

AI Technical Summary

Problems solved by technology

Since NPDB and STP are tightly coupled, NPDB is not an independent network element, which has the following defects: 1) STP is the core equipment of the signaling network, which brings the risk of upgrading and transforming the signaling network and increases the difficulty of implementing number portability; 2) ) It is difficult to access the same local NPDB system for the network of multiple operators; 3) It does not conform to the current network development trend of separation of user data processing and control

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