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Method and communication network domains for interconnection between domains

A technology of inter-domain intercommunication and communication network, applied in the field of inter-domain intercommunication, method and its communication network, can solve problems such as the inability to establish media sessions, and achieve the effect of quality assurance

Active Publication Date: 2008-12-10
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The present invention provides a method for inter-domain intercommunication and its communication network, so as to solve the problem that a media session cannot be established by using the existing technology in a scenario where the signaling bearer network can communicate end-to-end but the media bearer network cannot directly communicate with each other

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  • Method and communication network domains for interconnection between domains
  • Method and communication network domains for interconnection between domains
  • Method and communication network domains for interconnection between domains

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Embodiment Construction

[0028] In the actual networking of operators, the entities at the session control level have large capacity and many functions, so the number is relatively small. At the same time, the signaling network has higher requirements for security and reliability than the media bearer network, so the operator will set up a A large cross-regional session control network, this network is fully interoperable; and the media bearer operator may be different from the operator at the session control layer. At the same time, the media bearer network has many devices, the network is very large, and the network traffic is also high It is very large, and it may be operated and managed by multiple operators. Operators communicate through border interworking gateways, and for consideration of inter-network settlement (traffic billing), security, etc., and possible operators The difference in encoding and decoding capabilities between border interworking gateways requires the border interworking gat...

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Abstract

The invention discloses a method for inter-domain intercommunication. In the method, the application function (AF) entity in the domain where the calling party is located is directly addressed to the AF entity where the called party is located according to the call initiation signaling initiated by the user terminal equipment, and the AF entity is obtained. The called domain and the media address of the called terminal; when the AF entity determines that the media bearer between the calling domain and the called domain cannot directly communicate with each other, the originating AF entity needs to reselect the signaling route and select the session route To the interworking media control function (I-MCF) entity in this domain, the interworking media gateway (I-MGF) in this domain is controlled by the I-MCF entity to convert the media address of the calling terminal according to the domain and media address of the called terminal, Until the converted media address of the calling terminal and the domain where the called terminal resides can directly communicate with each other. The invention also discloses a communication network at the same time.

Description

technical field [0001] The invention relates to the next generation network (NGN) technology, in particular to a method for intercommunication between domains and a communication network thereof. Background technique [0002] NGN network is entering the stage of large-scale deployment to gradually replace the traditional public switched telephone network / integrated services digital network (PSTN / ISDN); NGN network is a network based on packet bearer technology, session control and bearer separation. NGN has the following characteristics: [0003] (1) The end-to-end feature of IP packet technology makes it possible to establish point-to-point call control flow and media flow, which is essentially different from the segment-by-segment establishment and segment-by-segment forwarding of media based on TDM technology. [0004] (2) The separation of session control and bearer enables these two layers to be constructed on different bearer networks. [0005] (3) The session contro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q7/38H04L12/56H04L29/06H04L29/12
Inventor 王樱严军
Owner HUAWEI TECH CO LTD