Method and system for realizing legal monitoring in nextgeneration network

Abstract

The system includes 3-thannel delivery functional entity (3TDFE), entity of providing monitored information (EPMI), and border gateway functional entity (BGFE). The method includes steps: connecting BGFE in next generation network to 3TDFE at law enforcement agency side; EPMI sends information of monitored object to BGFE; based on received information of monitored object, BGFE sends media stream of monitored object to 3TDFE. In the next generation network, the invention is capable of carrying out legal monitoring for users accesses from fixed network. The invention expands application range of legal monitoring operation, so as to raise quality of service of operation in next generation network.

Description

Method and system for realizing legal monitoring in next generation network Technical field The present invention relates to monitoring technology, in particular to a method and system for realizing legal monitoring for users accessing from a fixed network in the next generation network (NGN). Background technique Lawful surveillance refers to law enforcement agencies (LEA) that have been approved by the corresponding authorized agencies to monitor public communications network communications services in accordance with relevant national laws and public communications network industry regulations. The basic implementation process of lawful interception is: the law enforcement agency side lawful interception management function (ADMF) entity sends the interception data to the interception control network element in the communication network through the data interface X1_1; the interception control network element responds to the interception after receiving the interception data...

AI Technical Summary

Problems solved by technology

However, the 3GGSN in the IMS network is not the network entity involved when the user accesses the NGN through the fixed network, that is to say, when the user accesses the NGN from the fixed network, the transmission of the user's media stream will not Send the media stream of users accessing NGN from the fixed network to the monitoring center

However, for users accessing from a fixed network, there is currently no other legal collection solution for monitoring media streams.

It can be seen that in the current NGN network, it is impossible to monitor the users accessing the NGN from the fixed network, which greatly limits the application scope of the legal interception service and reduces the business service quality of the NGN network.

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