M3H Adaptation Layer for H.248 Message Transmission Over MTP3B
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Solution Overview
Problem
The existing method of transmitting H.248 messages between Media Gateway Controller (MGC) and Media Gateway (MGW) via IP links limits networking flexibility and increases construction costs, as it fails to utilize the advantages of ATM network resources.
Innovation Solution
Implementing a method and apparatus for transmitting Gateway Control Protocol (GCP) messages over MTP3B/ATM, utilizing an adaptation layer M3H to map and forward messages between the MTP3B protocol layer and the H.248 protocol layer, allowing for load sharing and efficient use of existing optical fiber and E1/T1 network resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If H.248 messages are transmitted via IP links, then networking simplicity is maintained, but networking flexibility deteriorates and construction costs increase
Solution Approach 1:
The patent introduces an adaptation layer (M3H) as an intermediary component between the MTP3B protocol layer and the H.248 protocol layer. This adaptation layer performs protocol conversion and message mapping, enabling H.248 messages to be transmitted over MTP3B/ATM infrastructure. The intermediary handles the complexity of protocol translation internally, allowing the network to leverage ATM resources while maintaining compatibility with existing H.248 applications.
2Productivity
If MTP3B/ATM infrastructure is utilized for H.248 message transmission, then networking flexibility and resource utilization improve, but protocol complexity increases
Solution Approach 1:
The patent segments the protocol stack into distinct functional layers: the MTP3B protocol layer for transport, the adaptation layer (M3H) for protocol conversion, and the H.248 protocol layer for media gateway control. This segmentation allows each layer to operate independently with well-defined interfaces, enabling the network to utilize mature ATM infrastructure resources while managing protocol complexity through modular architecture.
3Ease of manufacture
If existing ATM network resources are leveraged, then construction costs are reduced, but implementation complexity increases
Solution Approach 1:
The patent establishes pre-configured mapping relationships between MTP3B protocol elements and H.248 protocol elements in the adaptation layer. By pre-defining these mappings before actual message transmission, the system reduces real-time processing complexity. The adaptation layer maintains mapping tables and configuration data that enable efficient protocol conversion without requiring complex runtime decision-making, thus lowering implementation complexity while leveraging existing ATM resources.
Data Source
AI summary
A method of interface communication between entities in soft switch system in NGN, and a method and apparatus for Gateway Control Protocol (GCP) message transmission are disclosed, so that H.248 messages can be transmitted between Media Gateway Controller and Media Gateway over MTP3B/ATM, hence full advantages of resources are taken in existing optical fiber networks and E1/T1 networks, so as to improve the networking flexibility and reduce the cost. The internal data transmission mechanism between MTP3B protocol layer and H.248 protocol layer is established via an M3H adaptation layer; load sharing between H.248 processing modules is enabled by establishing mapping between H.248 links and MTP3B signaling points; the adaptation relationship between MTP3B layer and H.248 layer is implemented by configuring and maintaining logic relationship between table of LinkSets, H.248-MTP3B mapping table, and table of H.248 processing modules, thus implementing the mechanism of bearing H.248 messages over MTP3B.