Network Control Element Service Flow Termination Indication
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Solution Overview
Problem
Current communication networks face challenges in effectively managing and controlling network resources, particularly in releasing service flows and modifying QoS parameters across different service flows within a single PDP context, leading to inefficiencies in resource allocation and network load management.
Innovation Solution
A mechanism is introduced where a first network element determines the termination of authorized service flows and informs a second network element, allowing for the processing and modification of communication connection parameters, enabling the reuse of original QoS parameters and reducing network load by reestablishing the communication connection state without negotiating new parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If service flows are terminated in a packet based communication network, then network resources are released, but the Policy Decision Function (PDF) is not informed of the termination, causing resource allocation inefficiency
Solution Approach 1:
The patent implements a feedback mechanism where the network control element sends a termination indication message to the PDF whenever a service flow is terminated. This ensures the PDF is continuously informed of the current service flow status, enabling accurate resource allocation and preventing resource leaks while maintaining real-time network state synchronization.
2Adaptability or versatility
If new QoS parameters are negotiated for each service flow modification, then service requirements are met, but operational load and signaling overhead increase
Solution Approach 1:
The patent stores the original QoS parameters in the network control element before service flow modifications occur. When a service flow is terminated or modified, the system can quickly restore previous parameter configurations without initiating complex new negotiation procedures, significantly reducing signaling overhead and operational load while maintaining service quality.
3Productivity
If communication connection parameters are modified for each service flow change, then service optimization is achieved, but memory requirements and processing overhead increase
Solution Approach 1:
The patent extracts and stores only the essential original communication connection parameters in the network control element, rather than maintaining complete parameter sets for all possible service flow configurations. This selective storage approach reduces memory requirements while enabling efficient parameter restoration when service flows are terminated or modified.
Data Source
AI summary
When an authorization and/or control element like a policy control network element is involved in the authorization and/or control of a service flow in a communication connection controlled, a network control element, such as a GGSN, controlling the communication connection determines a termination of the thus authorized and/or controlled service flow and informs the policy control network element about the termination thereof. The policy control network element may then remove service attributes and/or QoS attributes related to this service flow. Furthermore, the communication connection in the communication network can be modified on the basis of stored information which represents a state before the establishment of the service flow.