IP-TDM Gateway for Intelligent Service Network Management
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Solution Overview
Problem
The coexistence of IP and TDM bearers in communication networks complicates management and maintenance, requiring significant resources and increasing investment and configuration complexity, as existing networks struggle to implement consolidated management due to the need to support both protocols concurrently.
Innovation Solution
An IP-based intelligent service system is introduced, comprising an intelligent peripheral sub-system, a switching device, and a service control device, which receives IP-based call information, initiates assistance requests, and provides resource operations, while a gateway performs protocol conversions between IP and TDM protocols, enabling the use of an IP bearer for network maintenance and service delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If both IP and TDM bearers are supported concurrently in the network, then existing intelligent services can be maintained, but network management and maintenance complexity increases significantly
Solution Approach 1:
The patent introduces a gateway as an intermediary device that performs protocol conversion between IP and TDM bearers. This gateway acts as a mediator that allows the core network to operate on IP while existing intelligent services using TDM can continue to function, thereby reducing management complexity without sacrificing service compatibility
Solution Approach 2:
The patent segments the network into different functional layers: the core network operates on IP bearer while the intelligent network layer maintains TDM bearer support through the gateway. This segmentation allows independent management and optimization of each layer, reducing overall system complexity
2Adaptability or versatility
If IP bearer is adopted for core network while TDM bearer is reserved for services, then modern network architecture is achieved, but consolidated maintenance and management becomes impossible
Solution Approach 1:
The gateway serves as an intermediary that translates between IP and TDM protocols, allowing the core network to be fully IP-based while maintaining TDM service support. This enables consolidated management from the IP side while preserving legacy service functionality
Solution Approach 2:
The gateway performs multiple functions including protocol conversion, signaling translation, and service mediation between IP and TDM domains. This multi-functionality allows a single device to handle both modern IP services and legacy TDM services, enabling consolidated maintenance
3Device complexity
If protocol conversion gateway is introduced to enable IP bearer, then management complexity is reduced, but device configuration resources increase
Solution Approach 1:
The patent combines multiple functions (protocol conversion, signaling translation, service mediation) into a single gateway device. This merging reduces the number of separate devices needed and simplifies overall network architecture, offsetting the configuration resources required for the gateway's multiple functions
Data Source
AI summary
An intelligent service system and method are provided. The method includes: receiving a calling information transmitted by a switching device through an Internet-protocol-based call control protocol and which carries the identification information of the service control function requested by the call as well as the identification information of the call; parsing the received calling information, and after the identification information of the service control function and the identification information of this calling are obtained, initiating an assist request to the service control device; receiving the resource operation instruction, and supplying service resource service accordingly; said instruction is sent out by the service control device after said device has received the assist request and according to the service requirement. The media stream leading to the media gateway is established through the media stream transport protocol based on the Internet protocol. The method simplifies the management and maintenance of the intelligent service network.