Border Media Gateway Cross-Domain IP Interconnection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current technologies lack a specific method for effectively interconnecting different IP domains, which have varying IP subnet addresses, protocols, and media coding/decoding algorithms, making seamless communication across these domains challenging.
Innovation Solution
A communication system and method utilizing a Border media Gateway (BG) to create and process media streams between Media Gateways (MGs) across different IP domains, under the control of Media Gateway Controllers (MGCs), enabling cross-domain interconnection by managing IP domain information and media stream settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different IP domains with varying IP subnet addresses, protocols, and media coding/decoding algorithms are interconnected, then cross-domain communication capability is improved, but system complexity increases
Solution Approach 1:
The patent introduces a Border Gateway (BG) as an intermediary device between different IP domains. The BG performs protocol conversion, IP address translation, and media coding/decoding algorithm adaptation, thereby enabling communication between heterogeneous IP domains without requiring direct compatibility between them. This intermediary approach resolves the technical contradiction by providing cross-domain communication capability while managing system complexity through centralized adaptation functions.
Solution Approach 2:
The patent employs parameter changes by dynamically adjusting IP address parameters, protocol parameters, and media coding parameters at the Border Gateway. The BG modifies these parameters to match the requirements of different IP domains, enabling seamless interconnection. This principle allows the system to adapt to different domain characteristics without increasing overall system complexity, as the parameter transformation is handled by the BG.
2Productivity
If Media Gateways in different IP domains are directly interconnected, then communication efficiency is improved, but compatibility issues arise due to different protocols and coding algorithms
Solution Approach 1:
The Border Gateway serves as a mediator that ensures protocol compatibility between Media Gateways in different IP domains. It performs protocol conversion and media coding adaptation, thereby guaranteeing reliable communication. Meanwhile, the direct interconnection of MGs through the BG maintains communication efficiency, as the adaptation functions are transparently handled by the BG without requiring complex modifications to the MGs themselves.
3Adaptability or versatility
If a Border Gateway is introduced to manage cross-domain media streams, then interconnection capability is improved, but device complexity increases
Solution Approach 1:
The Border Gateway is designed as a universal device that performs multiple functions including IP address translation, protocol conversion, media coding/decoding, and call control. By consolidating these diverse functions into a single multi-functional device, the patent improves interconnection capability across different IP domains while managing device complexity through functional integration rather than proliferation of separate specialized devices.
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
A communication system for implementing IP cross-domain interconnecting via Border media Gateway (BG) includes: different IP domains, each of which includes: a Media Gateway Controller (MGC) for call control and a Media Gateway (MG) for media bearing; the communication system includes a BG for implementing interconnecting of the IP domains as well. A communication method based on the communication system, includes: a calling MG and a called MG located in different IP domains implements call switching and media stream creating with a BG under the control of MGCs in the different IP domains; and the calling MG communicates with the called MG based on the media streams created. Thus the cross-domain interconnecting between different IP domains via BGs is realized.