QSIG IP Gateway Resource Release for Call Diversion
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Solution Overview
Problem
Existing communication networks face inefficiencies in resource management when interworking between QSIG and IP networks, leading to unnecessary resource utilization and reduced performance due to non-optimal solutions for Call Diversion and Single Step Call Transfer supplementary services.
Innovation Solution
A method and apparatus for optimizing resource allocation in communication networks by releasing inter-network resources when processes transition from inter-network to intra-network operations, avoiding unnecessary media and signaling connections, and ensuring that media channels are not established if calls are diverted or forwarded within the same network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If inter-network resources are allocated to perform inter-network processes in QSIG/IP gateway, then call diversion and transfer services are enabled, but gateway resources are not released efficiently when processes become intra-network
Solution Approach 1:
The patent implements dynamic resource management by monitoring the state of call diversion and transfer processes. When a process transitions from inter-network to intra-network operation, the system dynamically releases the allocated inter-network resources (gateway PINX connections), allowing the gateway to adapt its resource allocation state based on actual operational needs rather than maintaining static reservations.
Solution Approach 2:
The system employs feedback mechanisms to track the status of call diversion and transfer processes. By detecting when a process becomes intra-network (no longer requiring inter-network resources), the gateway receives feedback information and automatically adjusts its resource allocation, releasing PINX connections and other inter-network resources to improve gateway productivity.
2Reliability
If gateway PINX connections are maintained for inter-network processes, then service reliability is ensured, but unnecessary resource occupation occurs when processes are completed
Solution Approach 1:
The patent implements a resource release mechanism that discards (releases) inter-network resources such as gateway PINX connections when they are no longer needed. The system monitors process completion and automatically recovers resources by releasing connections and freeing gateway bandwidth, preventing unnecessary resource occupation while maintaining service reliability during active operations.
Solution Approach 2:
The system performs preliminary actions by establishing resource allocation protocols that prepare for efficient resource release. When a call diversion or transfer process completes, the gateway has pre-configured mechanisms to immediately release inter-network resources, ensuring that resource occupation is minimized without compromising service reliability during the transition.
3Reliability
If media channels are established for all calls, then call connectivity is ensured, but network bandwidth is wasted when calls are diverted within the same network
Solution Approach 1:
The system performs preliminary analysis of call routing decisions before establishing media channels. By detecting call diversion scenarios where the called party is in the same network (intra-network), the gateway preemptively avoids establishing unnecessary inter-network media channels, saving network bandwidth while ensuring connectivity is maintained through appropriate intra-network routing.
Solution Approach 2:
The patent extracts unnecessary media channel establishment from the call setup process. By identifying calls that will be diverted within the same network, the system extracts (removes) the unnecessary inter-network media channel allocation step, allowing calls to be routed directly within the local network without consuming external bandwidth resources.
Data Source
AI summary
Under the present invention, resources such as gateways which interconnect usually disparate networks are released for processes which, while originally being inter-network, become intra-network, and the resource (e.g., gateway) is no longer needed for the intra-network process to be completed. The present invention is useful to optimally interwork an IP network with a PISN employing the QSIG Call Diversion and Single Step Call Transfer supplementary services. Attendant features achieved with implementation of the present invention, include quick release of network circuits that are being used for media connections that are no longer necessary and of system resources that are being used for signaling connections that are no longer necessary. Under the present invention, a media channel is not established from an IP network to a PISN, if a user of the PISN makes a call to a user of the IP network, who has forwarded/diverted her calls into the PISN and vice versa.